WO2012042636A1 - 移動物体検知装置 - Google Patents
移動物体検知装置 Download PDFInfo
- Publication number
- WO2012042636A1 WO2012042636A1 PCT/JP2010/067090 JP2010067090W WO2012042636A1 WO 2012042636 A1 WO2012042636 A1 WO 2012042636A1 JP 2010067090 W JP2010067090 W JP 2010067090W WO 2012042636 A1 WO2012042636 A1 WO 2012042636A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- detection means
- radiation detection
- radiation
- moving object
- transmission
- Prior art date
Links
Images
Classifications
-
- 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
- G01S13/04—Systems determining presence of a target
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems
- G08B13/1618—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means
- G08B13/1627—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means using Doppler shift detection circuits
Definitions
- the present invention relates to a moving object detection device that detects the movement of an object or the presence / absence of a moving object by radiating electromagnetic waves to an object to be measured, and in particular, the movement or movement of an object using a standing wave generated between the object and the object.
- the present invention relates to a moving object detection apparatus that detects the presence or absence of an object.
- the pulse radar method is a method of obtaining a distance to a measurement target by transmitting a pulsed electromagnetic wave toward the measurement target and measuring a time until the electromagnetic wave reflected by the measurement target returns.
- the FM-CW method is a method in which a beat signal is generated by mixing a transmission signal and a reception signal whose frequency gradually increases and decreases, and the frequency of the beat signal (beat frequency) is increased by an increase unit in which the frequency of the transmission signal increases.
- This is a method of specifying for each section of the descending part where the frequency decreases, and measuring the distance and relative speed from the measurement object based on the beat frequency of the ascending part and the beat frequency of the descending part.
- a moving object detection apparatus that detects the movement of an object or the presence or absence of a moving object (hereinafter simply referred to as “movement of an object”) using a standing wave (standing wave).
- a standing wave is a wave generated by overlapping electromagnetic waves (traveling waves) having the same frequency but different traveling directions.
- a moving object detection apparatus using a standing wave generates a standing wave by superimposing an electromagnetic wave radiated by an antenna and an electromagnetic wave reflected by an object and returned. Then, the movement of the object is detected using the fact that the amplitude of the standing wave fluctuates due to the movement of the object (due to a change in the distance between the apparatus and the object).
- a moving object detection device that detects the movement of an object using a standing wave can detect the movement of an object existing at a short distance with higher accuracy than the pulse radar method or the FM-CW method. Therefore, it is suitable for an intrusion sensor that detects whether or not an intruder exists in the interior of a car or in a house, a sensor that detects the behavior of a driver driving a car, a person's heartbeat, breathing, body movement, etc. Used for. In such an apparatus, it is also possible to measure the distance from the object by analyzing the amplitude fluctuation after changing the frequency of the electromagnetic wave to be radiated.
- FIG. 1 is a diagram illustrating a state in which the antenna of the moving object detection apparatus as described above radiates a transmission wave, and a reflected wave reflected by the object returns to the antenna.
- AT is an antenna
- OB is an object
- ⁇ is a transmitted wave
- ⁇ is a reflected wave.
- the wave that is composed of the transmitted wave ⁇ and the reflected wave ⁇ is a standing wave.
- the standing wave is expressed as ⁇ .
- N is a positive integer and an even number.
- FIG. 2 is a diagram showing how the amplitude of the standing wave ⁇ becomes zero.
- the amplitude of the standing wave ⁇ becomes maximum when the distance between the antenna AT and the object OB is M ⁇ ⁇ / 4 (M is a positive integer and an odd number).
- FIG. 3 is a diagram illustrating how the amplitude of the standing wave ⁇ is maximized.
- the amplitude of the standing wave generated between the object and the object by radiating electromagnetic waves from the antenna periodically changes according to the distance between the antenna and the object. Therefore, by monitoring this change in amplitude, it is possible to detect the movement of the object.
- Patent Document 1 describes a measuring apparatus that measures a distance from a measurement object by detecting a standing wave.
- the detection means is provided closer to the measurement object than the transmission means for emitting electromagnetic waves. Then, the distance to the measurement object is measured based on the detection signal function formed from the frequency of the electromagnetic wave emitted by the transmission unit and the amplitude of the standing wave detected by the detection unit.
- Patent Document 2 describes a device that does not use a standing wave but aims to accurately detect a minute movement of an object.
- a transmission signal and a reception signal are converted to a lower frequency by using a local signal having a predetermined frequency, and the movement detection object is based on the phase difference between the transmission signal and the reception signal that have been converted to a lower frequency. The movement state of is determined.
- the device that detects the movement of the object using the standing wave as described above, when the target object is located near the antinode and node of the standing wave, In some cases, the change in the amplitude becomes small, and the movement of the object cannot be detected accurately.
- the antinode of the standing wave is a portion where the amplitude is maximum, and the node of the standing wave is a portion where the amplitude is minimum. That is, when the distance between the device and the object is in a specific relationship, the sensitivity of the device may decrease.
- FIG. 4 is an explanatory diagram for explaining the amplitude variation with respect to the same displacement amount in the standing wave.
- the horizontal axis indicates the distance to the antenna.
- the amount of displacement of the object (change in distance from the antenna) ) Amplitude variation is minimal. Therefore, the detection sensitivity with respect to the movement of the object located at the locations X1 and X3 is low.
- N 0 , N 1 , and N 2 are positive integers and even numbers, and M 1 and M 2 are positive integers and odd numbers.
- the high sensitivity region and the low sensitivity region appear repeatedly at intervals of ⁇ / 8 from the device.
- ⁇ is the wavelength of the transmission wave as described above.
- FIG. 5 is a diagram illustrating the distribution of the high sensitivity region and the low sensitivity region generated in the moving object detection device using the standing wave, and the object that satisfies the specific condition that makes it difficult to detect the movement.
- the high sensitivity region and the low sensitivity region of the moving object detection device alternately appear concentrically around the antenna AT.
- the interval between the central portion H of the high sensitivity region and the central portions L1 and L2 of the low sensitivity region (L1 corresponds to the node of the standing wave and L2 corresponds to the antinode of the standing wave) is ⁇ / 8.
- the object OB1 in FIG. 5 is sufficiently large in size, any part thereof intersects the high sensitivity region. As a result, the displacement of the object OB1 is detected with high sensitivity by the moving object detection device, and the possibility that the movement of the object OB1 is overlooked is reduced.
- the object OB2 in FIG. 5 is small in size and almost entirely located in the low sensitivity region. In this case, if the displacement of the object OB2 is smaller than ⁇ / 8, the displacement of the object OB2 becomes difficult to be detected by the moving object detection device, and the possibility that the movement of the object OB2 is overlooked increases.
- Patent Document 2 states that “in the standing wave that changes in a sine wave shape, the amplitude change of the standing wave in the vicinity of the maximum amplitude value is slow, so that an error occurs in the detection of the maximum amplitude value of the standing wave.
- This detection error of the maximum amplitude value becomes the detection error of the minute movement amount as it is, and therefore, in the conventional technique, the detection accuracy of the minute movement amount is caused by the detection error of the maximum amplitude value of the standing wave.
- the present invention is intended to solve such problems, and it is a main object of the present invention to provide a moving object detection device that does not require adjustment of frequency and antenna position and can suppress a decrease in detection accuracy.
- the first aspect of the present invention provides: First radiation detection means for radiating electromagnetic waves and detecting standing waves generated by the reflected electromagnetic waves being reflected by an object; An electromagnetic wave having the same frequency as the electromagnetic wave radiated by the first radiation detection means is radiated so as to pass in the vicinity of an electromagnetic wave radiation location in the first radiation detection means, and the radiated electromagnetic wave is reflected by an object.
- Second radiation detection means for detecting standing waves generated by A moving object detection device for detecting the movement of an object or the presence or absence of a moving object based on a standing wave detected by the first radiation detection means and / or the second radiation detection means,
- the distance from the electromagnetic wave radiated by the second radiation detection means to the vicinity of the electromagnetic wave radiation location in the first radiation detection means is radiated by the first radiation detection means and the second radiation detection means. It is a distance obtained by adding a wavelength corresponding to a predetermined period smaller than the half period to an integral multiple of the wavelength corresponding to a half period of the electromagnetic wave, It is a moving object detection device.
- the first radiation detection means and the second radiation detection means complement each other's low sensitivity regions, it is not necessary to adjust the frequency and the antenna position, and the detection accuracy. Can be suppressed.
- the wavelength corresponding to the predetermined period is a wavelength corresponding to one-eighth period of the electromagnetic wave radiated from the first radiation detection unit and the second radiation detection unit.
- the low sensitivity area of the first radiation detection means and the high sensitivity area of the second radiation detection means are exactly overlapped, so that a reduction in detection accuracy can be more effectively suppressed.
- the electromagnetic waves radiated by the first radiation detection unit and the second radiation detection unit have orthogonal polarization planes.
- the first radiation detection means and the second radiation detection means can detect only the standing waves generated by themselves.
- the second radiation detection means radiates electromagnetic waves in a direction opposite to the direction in which the first radiation detection means radiates electromagnetic waves, and reflects the radiated electromagnetic waves by a reflecting member having an elliptical cross section.
- the elliptical shape of the cross-section of the reflecting member is preferably characterized in that the electromagnetic wave radiation locations in the first radiation detection means and the second radiation detection means are two focal points.
- the electromagnetic waves radiated by the second radiation detection means are collected in the vicinity of the electromagnetic wave radiation location of the first radiation detection means.
- the collected electromagnetic waves pass through the vicinity of the electromagnetic radiation point of the first radiation detection means, and then diffuse as if radiated from the first radiation detection means and proceed to the detection area of the moving object detection device. .
- the directivity of the first radiation detection means and the second radiation detection means are made to be the same, the detection area by the first radiation detection means and the detection area by the second radiation detection means are substantially matched. be able to.
- the second radiation detection means is located behind the electromagnetic radiation direction of the first radiation detection means, and is provided between the second radiation detection means and the first radiation detection means to transmit electromagnetic waves.
- An electromagnetic wave may be radiated in substantially the same direction as the first radiation detecting means through a refracting dielectric lens.
- the second aspect of the present invention is: First radiation detection means for radiating electromagnetic waves and detecting standing waves generated by the reflected electromagnetic waves being reflected by an object; Positioned behind the electromagnetic radiation direction of the first radiation detection means, and radiates the electromagnetic waves having the same frequency as the electromagnetic waves emitted by the first radiation detection means so as to pass through the vicinity of the first radiation detection means.
- a moving object detection device for detecting the movement of an object or the presence or absence of a moving object based on a standing wave detected by the first radiation detection means and / or the second radiation detection means,
- the distance from the electromagnetic waves radiated by the plurality of second radiation detection means to the vicinity of the electromagnetic wave radiation location in the first radiation detection means is determined by the first radiation detection means and the second radiation detection means. It is a distance obtained by adding an integer multiple of a wavelength corresponding to a predetermined cycle smaller than the half cycle to an integral multiple of a wavelength corresponding to a half cycle of the radiated electromagnetic wave, It is a moving object detection device.
- the first radiation detection means and the second radiation detection means complement each other's low sensitivity regions, adjustment of frequency and antenna position is not required, and detection accuracy is achieved. Can be suppressed.
- the electromagnetic waves radiated by the first radiation detection means and the second radiation detection means have polarization planes different from each other by a predetermined angle.
- the present invention it is possible to provide a moving object detection device that does not require adjustment of frequency and antenna position and can suppress a decrease in detection accuracy.
- FIG. 1 It is a conceptual diagram of the moving object detection apparatus which concerns on this invention. It is a structural example of the moving object detection apparatus 1 which concerns on 1st Example of this invention. It is a figure which shows distribution of the high sensitivity area
- FIG. 3 is a diagram illustrating a distribution of a central portion of a high sensitivity region of the first transmission / reception antenna 10 around the first transmission / reception antenna 10 and a central portion of a high sensitivity region of the second transmission / reception antenna 20.
- It is a structural example of the moving object detection apparatus 2 which concerns on 2nd Example of this invention.
- FIG. 6 is a conceptual diagram of a moving object detection device according to the present invention.
- the moving object detection device according to the present invention is capable of detecting the movement (or presence) of a moving object OB that has a minute displacement equal to or less than the wavelength of the radiated electromagnetic wave.
- An AT, an oscillation device VB, a standing wave intensity detection device DT, and a detection resolution improvement device IM are provided.
- FIG. 7 is a configuration example of the moving object detection apparatus 1 according to the first embodiment of the present invention.
- the moving object detection device 1 includes a first transmission / reception antenna 10, a second transmission / reception antenna 20, a reflection member 30, an oscillation device 40, and a standing wave intensity detection device 50 as main components.
- the 2nd transmission / reception antenna 20 and the reflection member 30 are equivalent to the detection resolution improvement apparatus IM in FIG.
- the first transmission / reception antenna 10 and the second transmission / reception antenna 20 are transmission / reception integrated antennas having a certain directivity, and radiate microwaves according to the voltage supplied from the oscillation device 40.
- the first transmission / reception antenna 10 and the second transmission / reception antenna 20 have a configuration in which, for example, a microstrip line, a ground member formed with a slit, and a patch antenna are sequentially stacked.
- the first transmission / reception antenna 10 and the second transmission / reception antenna 20 may be arrayed as necessary, and may be configured to increase directivity.
- the first transmitting / receiving antenna 10 radiates microwaves toward the center direction of the detection area of the moving object detection device 1 (the Z direction in FIG. 7).
- the first transmitting / receiving antenna 10 generates an antenna voltage corresponding to the amplitude of the standing wave, which is generated when the radiated microwave is reflected by the object. This antenna voltage is input to the standing wave intensity detection device 50 and used to detect the movement of the object.
- the second transmitting / receiving antenna 20 radiates microwaves having the same frequency as that of the first transmitting / receiving antenna 10 toward the side opposite to the center direction (Z direction in FIG. 7) of the detection area of the moving object detection device 1.
- the microwave radiated from the second transmitting / receiving antenna 20 is reflected by the reflecting member 30.
- the reflecting member 30 is a concave member made of a metal or the like that reflects microwaves.
- the reflecting member 30 rotates, for example, a part of an ellipse whose focal points are the first transmission / reception antenna 10 and the second transmission / reception antenna 20 about a straight line connecting the first transmission / reception antenna 10 and the second transmission / reception antenna 20.
- the cross section of the reflecting member 30 has an elliptical shape having the first transmitting / receiving antenna 10 and the second transmitting / receiving antenna 20 as two focal points.
- a shaded circle in FIG. 7 indicates the focal point of the ellipse.
- the shape of the reflecting member 30 is not limited to this, and may be a polyhedral shape or the like whose cross section is close to an ellipse.
- the microwaves radiated by the second transmitting / receiving antenna 20 are collected in the vicinity of the first transmitting / receiving antenna 10.
- the collected microwaves pass through the vicinity of the first transmission / reception antenna 10, and then diffuse as if radiated from the first transmission / reception antenna 10 and proceed to the detection region of the moving object detection device 1.
- the directivity of the first transmission / reception antenna 10 and the second transmission / reception antenna 20 is made the same, the detection area by the first transmission / reception antenna 10 and the detection area by the second transmission / reception antenna 20 are substantially matched. be able to.
- the microwave radiated from the second transmitting / receiving antenna 20 is reflected by the object, a standing wave is generated between the second transmitting / receiving antenna 20, the reflecting member 30, and the object.
- the second transmitting / receiving antenna 20 generates an antenna voltage corresponding to the amplitude of the standing wave. This antenna voltage is input to the standing wave intensity detection device 50 and used to detect the movement of the object.
- the polarization planes of the microwave radiated from the first transmission / reception antenna 10 and the microwave radiated from the second transmission / reception antenna 20 are orthogonal to each other. As a result, the first transmitting / receiving antenna 10 and the second transmitting / receiving antenna 20 can detect only the standing wave generated by themselves as the antenna voltage.
- the distance from the microwave radiated by the second transmitting / receiving antenna 20 to the vicinity of the first transmitting / receiving antenna 10 is the wavelength of the microwave radiated by the first transmitting / receiving antenna 10 and the second transmitting / receiving antenna 20.
- the positional relationship among the first transmitting / receiving antenna 10, the second transmitting / receiving antenna 20, and the reflecting member 30 is set so that ⁇ K ⁇ ⁇ / 2 + ⁇ / 8 (K is a positive integer) ⁇ . .
- the first transmission / reception antenna 10 and the second transmission / reception antenna 20 can complement each other's low-sensitivity regions and suppress a decrease in detection accuracy of the moving object detection device 1.
- FIG. 8 is a diagram showing the distribution of the high sensitivity region and the low sensitivity region around the first transmission / reception antenna 10 due to the standing wave generated by the first transmission / reception antenna 10. As shown in the figure, the high sensitivity region and the low sensitivity region due to the standing wave generated by the first transmission / reception antenna 10 alternately appear concentrically around the first transmission / reception antenna 10, and the center of the high sensitivity region The distance between the portion H and the central portions L1 and L2 of the low sensitivity region is ⁇ / 8.
- FIG. 9 is a diagram showing the distribution of the high sensitivity region and the low sensitivity region centered on the first transmission / reception antenna 10 due to the standing wave generated by the second transmission / reception antenna 20.
- the high sensitivity region and the low sensitivity region due to the standing wave generated by the second transmission / reception antenna 20 alternately appear concentrically around the first transmission / reception antenna 10, and the central portion H of the high sensitivity region and the low sensitivity
- the distance between the center portions L1 and L2 of the region is ⁇ / 8. These are the same as those caused by the standing wave generated by the first transmitting / receiving antenna 10.
- the distance from the microwave radiated by the second transmitting / receiving antenna 20 to the vicinity of the first transmitting / receiving antenna 10 is ⁇ K ⁇ ⁇ / 2 + ⁇ / 8 (K is a positive integer) ⁇ It is set to become. Therefore, the standing wave generated by the second transmitting / receiving antenna 20 has a phase difference corresponding to the wavelength ⁇ / 8 with respect to the standing wave generated by the first transmitting / receiving antenna 10. .
- the wavelength of the standing wave from node to node, or the wavelength from antinode to antinode, is ⁇ / 2.
- FIG. 10 is a diagram illustrating a state in which the high sensitivity region and the low sensitivity region of the standing wave generated by the first transmission / reception antenna 10 and the second transmission / reception antenna 20 overlap each other.
- the horizontal axis represents the distance from the first transmitting / receiving antenna 10.
- the standing wave gamma was allowed to occur by the second receiving antenna 20 20 of heart H 20 2 overlaps the sensitive region
- the low sensitivity region center L 20 3 of the second standing wave gamma 20 was allowed to occur by the transceiver antenna 20, generated by the first transmitting and receiving antenna 10 relationship that is the heart H 10 3 overlaps the sensitive region of the standing wave gamma 10 which is allowed is periodically continued.
- the 1st transmission / reception antenna 10 and the 2nd transmission / reception antenna 20 can complement each other's low sensitivity area
- the high sensitivity regions of the first transmission / reception antenna 10 and the second transmission / reception antenna 20 appear alternately, so that even a small displacement of the object OB2 having a small size as illustrated is detected with high accuracy. be able to.
- the standing wave intensity detection device 50 outputs, for example, a diode detector that outputs a voltage corresponding to the amplitude of the standing wave detected by the first transmission / reception antenna 10 and the second transmission / reception antenna 20 and a diode detector. And a comparator that outputs a DC current (signal) when the voltage is equal to or higher than a predetermined voltage. Accordingly, for example, when the presence or absence of the output of the comparator is switched from the Lo state to the Hi state or vice versa, it can be determined that the object has moved (or there is a moving object).
- the present invention does not limit the use mode of such a determination result, for example, an intrusion sensor that detects whether or not an intruder exists in the interior of a car or a house, the behavior of a driver driving a car,
- the present invention can be applied to a sensor that detects a person's heartbeat, respiration, body movement, and the like.
- the standing wave intensity detection device 50 is not limited to the above-described mode, and includes, for example, an A / D converter to which the antenna voltages of the first transmission / reception antenna 10 and the second transmission / reception antenna 20 are input. It is good also as a structure which can output variation
- the moving object detection apparatus 1 of the present embodiment since the first transmission / reception antenna 10 and the second transmission / reception antenna 20 complement each other's low sensitivity regions, it is necessary to adjust the frequency and the antenna position. Therefore, a decrease in detection accuracy can be suppressed.
- emitted by the 2nd transmission / reception antenna 20 can be collected in the vicinity of the 1st transmission / reception antenna 10 using the reflection member 30 with an elliptical cross section, the detection by the 1st transmission / reception antenna 10 is possible.
- the area and the detection area by the second transmission / reception antenna 20 can be substantially matched.
- FIG. 12 is a configuration example of the moving object detection device 2 according to the second embodiment of the present invention.
- the moving object detection apparatus 2 includes, as main components, a first transmission / reception antenna 10, a second transmission / reception antenna group 20a, 20b, 20c, a third transmission / reception antenna group 25a, 25b, 25c, and an oscillation apparatus 40.
- the standing wave intensity detection device 50 is provided.
- symbol is attached
- the second transmitting / receiving antenna groups 20 a, 20 b, and 20 c are located behind the first transmitting / receiving antenna 10 with respect to the microwave radiation direction, and are arranged on an arc R 1 having a radius r 1 centered on the first transmitting / receiving antenna 10. .
- the second transmission / reception antenna groups 20 a, 20 b, and 20 c radiate microwaves having the same frequency as that of the first transmission / reception antenna 10 so as to pass through the vicinity of the first transmission / reception antenna 10.
- an antenna voltage corresponding to the amplitude of the standing wave generated by the reflected microwave being reflected by the object is generated. This antenna voltage is input to the standing wave intensity detection device 50 and used to detect the movement of the object.
- the third transmission / reception antenna groups 25a, 25b, 25c are located behind the second transmission / reception antenna groups 20a, 20b, 20c with respect to the microwave radiation direction of the first transmission / reception antenna 10, and the first transmission / reception antenna groups They are arranged on an arc R2 having a radius r2 with the antenna 10 as the center.
- the third transmitting / receiving antenna groups 25 a, 25 b, and 25 c radiate microwaves having the same frequency as that of the first transmitting / receiving antenna 10 so as to pass through the vicinity of the first transmitting / receiving antenna 10.
- This antenna voltage is input to the standing wave intensity detection device 50 and used to detect the movement of the object.
- the polarization plane of the microwave radiated from the second transmission / reception antenna group 20a, 20b, 20c has an angle of 120 degrees with respect to the polarization plane of the microwave radiated from the first transmission / reception antenna 10. Further, the plane of polarization of the microwave radiated from the third transmitting / receiving antenna group 25a, 25b, 25c has an angle of 240 degrees with respect to the plane of polarization of the microwave radiated from the first transmitting / receiving antenna 10. . Accordingly, the first transmitting / receiving antenna group 10, the second transmitting / receiving antenna group 20a, 20b, 20c, and the third transmitting / receiving antenna group 25a, 25b, 25c detect the standing waves generated by themselves as antenna voltages. It becomes easy.
- the radius r1 of the arc R1 is, for example, ⁇ / 16, and the radius r2 of the arc R2 is, for example, ⁇ / 8.
- the first transmitting / receiving antenna group 10 the second transmitting / receiving antenna group 20a, 20b, 20c, and the third transmitting / receiving antenna group 25a, 25b, 25c
- region can be complemented and the fall of the detection accuracy of the moving object detection apparatus 1 can be suppressed.
- FIG. 13 shows a high sensitivity region and low sensitivity of standing waves generated by the first transmission / reception antenna 10, the second transmission / reception antenna groups 20a, 20b, and 20c, and the third transmission / reception antenna groups 25a, 25b, and 25c. It is a figure which shows a mode that an area
- the central portion H 20 of the high sensitivity region of ⁇ 20 (strictly speaking, standing wave group), and the standing wave ⁇ 25 (specifically, standing wave) generated by the third transmitting / receiving antenna groups 25a, 25b, and 25c.
- the relationship in which the center H 25 of the high sensitivity region of the wave group complements the low sensitivity regions of the other transmitting and receiving antennas continues periodically.
- the first transmission / reception antenna 10, the second transmission / reception antenna group 20 a, 20 b, 20 c and the third transmission / reception antenna group 25 a, 25 b, 25 c complement each other's low-sensitivity regions and detect the moving object detection device 2. A decrease in accuracy can be suppressed.
- the detection accuracy can be further increased.
- the first transmission / reception antenna 10, the second transmission / reception antenna groups 20a, 20b, 20c, and the third transmission / reception antenna groups 25a, 25b, 25c are mutually connected. Since the low sensitivity region is complemented, it is not necessary to adjust the frequency and the antenna position, and a decrease in detection accuracy can be suppressed.
- the detection sensitivity can be further improved because the high sensitivity region is distributed at a higher density.
- the second transmission / reception antenna 20 is located behind the first transmission / reception antenna 10 with respect to the microwave radiation direction.
- Microwaves may be radiated in substantially the same direction as the first transmission / reception antenna 10 via a dielectric lens 35 provided between the first transmission / reception antennas 10.
- FIG. 14 is a configuration example of a moving object detection device according to another embodiment of the present invention.
- the dielectric lens 35 has a function of refracting electromagnetic waves in the same manner as an optical lens refracts light.
- the refractive index of the dielectric lens 35 and the first transmission / reception antenna so that the microwaves radiated from the second transmission / reception antenna 20 and passed through the dielectric lens 35 are collected in the vicinity of the first transmission / reception antenna 10. 10, the positional relationship between the second transmitting / receiving antenna 20 and the dielectric lens 35 is adjusted. In this way, as in the first embodiment, if the directivity of the first transmission / reception antenna 10 and the second transmission / reception antenna 20 are made the same, the detection area of the first transmission / reception antenna 10 and the second transmission / reception antenna The detection area by 20 can be substantially matched.
- the microwaves radiated from the first transmitting / receiving antenna 10 and the microwaves radiating from the second transmitting / receiving antenna 20 are orthogonal to each other. It is. Further, the distance from the microwave radiated by the second transmitting / receiving antenna 20 to the vicinity of the first transmitting / receiving antenna 10 is ⁇ K ⁇ ⁇ / 2 + ⁇ / 8 (K is a positive integer) ⁇ . It is preferable that the positional relationship among the first transmission / reception antenna 10, the second transmission / reception antenna 20, and the dielectric lens 35 is set.
- both the first embodiment and the second embodiment may include an actuator for changing the detection region. In this way, it is possible to detect the movement of the object and the presence or absence of the moving object in a wider range.
- any one of the second transmission / reception antenna groups 20a, 20b, 20c and the third transmission / reception antenna groups 25a, 25b, 25c may be omitted.
- the second transmission / reception antenna groups 20a, 20b, 20c and the third transmission / reception antenna groups 25a, 25b, 25c do not necessarily need to be composed of three antennas, but may be plural.
- the second transmitting / receiving antenna 20 in the first embodiment may include second transmitting / receiving antenna groups 20a and 20b.
- FIG. 15 is a configuration example of a moving object detection device according to another embodiment of the present invention. Since the second transmission / reception antenna 20 has a longer distance to the object than the first transmission / reception antenna 10, there is a high possibility that the attenuation of the microwave will be larger than that of the first transmission / reception antenna 10. Therefore, with the configuration as shown in FIG. 15, the output of the second transmitting / receiving antenna 20 can be enhanced and the detection accuracy can be increased.
- the first transmitting / receiving antenna 10 may include first transmitting / receiving antenna groups 10a and 10b.
- 16 and 17 are configuration examples of a moving object detection device according to another embodiment of the present invention.
- the shaded circles in FIGS. 15 to 17 indicate the focal point of the ellipse formed by the cross section of the reflecting member 30.
- the moving object detection device of the present invention is not limited to microwaves, and may emit other types of electromagnetic waves.
- the first transmission / reception antenna 10, the second transmission / reception antenna 20, or the transmission / reception antenna group in the second embodiment is an antenna that is not a transmission / reception integrated type, that is, a transmission antenna and a reception antenna.
- the first transmitting / receiving antenna 10 includes the first transmitting antenna 10A and the first receiving antenna 10B
- the second transmitting / receiving antenna 20 and the transmitting / receiving antenna group in the second embodiment are the first transmitting antenna. What is necessary is just to radiate
- the present invention can be used in the manufacturing industry of an apparatus for detecting the movement of an object or the presence of a moving object, and in the automobile industry, the security service industry, and the like.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
電磁波を放射すると共に、該放射した電磁波が物体で反射されることにより生じる定在波を検出する第1の放射検出手段と、
前記第1の放射検出手段が放射する電磁波と同じ周波数の電磁波を前記第1の放射検出手段における電磁波放射箇所の近傍を通過するように放射すると共に、該放射した電磁波が物体で反射されることにより生じる定在波を検出する第2の放射検出手段と、を備え、
前記第1の放射検出手段及び/又は前記第2の放射検出手段により検出された定在波に基づいて、物体の移動又は移動物体の有無を検知する移動物体検知装置であって、
前記第2の放射検出手段が放射する電磁波が前記第1の放射検出手段における電磁波放射箇所の近傍に至るまでの距離は、前記第1の放射検出手段及び前記第2の放射検出手段が放射する電磁波の半周期分の波長の整数倍に、該半周期よりも小さい所定周期分の波長を加えた距離であることを特徴とする、
移動物体検知装置である。
前記所定周期分の波長は、前記第1の放射検出手段及び前記第2の放射検出手段が放射する電磁波の8分の1周期分の波長であると、好適である。
前記第1の放射検出手段と前記第2の放射検出手段が放射する電磁波は、偏波面が直交すると、好適である。
前記第2の放射検出手段は、前記第1の放射検出手段が電磁波を放射する方向と逆向きに電磁波を放射し、該放射した電磁波を、断面が楕円形状を有する反射部材で反射させて前記第1の放射検出手段における電磁波放射箇所の近傍に向けて放射する手段であり、
前記反射部材の断面の楕円形状は、前記第1の放射検出手段及び前記第2の放射検出手段における電磁波放射箇所を二つの焦点とすることを特徴とするものとすると、好適である。
前記第2の放射検出手段は、前記第1の放射検出手段の電磁波放射方向に関して背後側に位置し、前記第2の放射検出手段と前記第1の放射検出手段の間に設けられ、電磁波を屈折させる誘電体レンズを介して前記第1の放射検出手段と略同方向に電磁波を放射することを特徴とするものとしてもよい。
電磁波を放射すると共に、該放射した電磁波が物体で反射されることにより生じる定在波を検出する第1の放射検出手段と、
前記第1の放射検出手段の電磁波放射方向に関して背後側に位置し、前記第1の放射検出手段が放射する電磁波と同じ周波数の電磁波を前記第1の放射検出手段の近傍を通過するように放射すると共に、該放射した電磁波が物体で反射されることにより生じる定在波を検出する複数の第2の放射検出手段と、を備え、
前記第1の放射検出手段及び/又は前記第2の放射検出手段により検出された定在波に基づいて、物体の移動又は移動物体の有無を検知する移動物体検知装置であって、
前記複数の第2の放射検出手段が放射する電磁波が前記第1の放射検出手段における電磁波放射箇所の近傍に至るまでの距離は、前記第1の放射検出手段及び前記第2の放射検出手段が放射する電磁波の半周期分の波長の整数倍に、該半周期よりも小さい所定周期分の波長の整数倍を加えた距離であることを特徴とする、
移動物体検知装置である。
前記第1の放射検出手段と前記第2の放射検出手段が放射する電磁波は、偏波面が所定角度異なっているものとすると、好適である。
以下、図面を参照し、本発明の第1実施例に係る移動物体検知装置1について説明する。図6は、本発明に係る移動物体検知装置の概念図である。図示するように、本発明に係る移動物体検知装置は、放射された電磁波の波長以下の微小変位をする移動物体OBの移動(又は存在)を検知することを可能としたものであり、送受信アンテナATと、発振装置VBと、定在波強度検知装置DTと、検知分解能向上装置IMと、を備える。
以下、図面を参照し、本発明の第2実施例に係る移動物体検知装置2について説明する。図12は、本発明の第2実施例に係る移動物体検知装置2の構成例である。移動物体検知装置2は、主要な構成として、第1の送受信アンテナ10と、第2の送受信アンテナ群20a、20b、20cと、第3の送受信アンテナ群25a、25b、25cと、発振装置40と、定在波強度検知装置50と、を備える。なお、第1実施例と共通する構成要素については、同一の符号を付して詳細な説明を省略する。
10 第1の送受信アンテナ
10a、10b 第1の送受信アンテナ群
20 第2の送受信アンテナ
20a、20b、20c 第2の送受信アンテナ群
25a、25b、25c 第3の送受信アンテナ群
30 反射部材
35 誘電体レンズ
40 発振装置
50 定在波強度検知装置
AT アンテナ
OB 物体
VB 発振装置
DT 定在波強度検知装置
IM 検知分解能向上装置
α 送信波
β 反射波
γ 定在波
Claims (7)
- 電磁波を放射すると共に、該放射した電磁波が物体で反射されることにより生じる定在波を検出する第1の放射検出手段と、
前記第1の放射検出手段が放射する電磁波と同じ周波数の電磁波を前記第1の放射検出手段における電磁波放射箇所の近傍を通過するように放射すると共に、該放射した電磁波が物体で反射されることにより生じる定在波を検出する第2の放射検出手段と、を備え、
前記第1の放射検出手段及び/又は前記第2の放射検出手段により検出された定在波に基づいて、物体の移動又は移動物体の有無を検知する移動物体検知装置であって、
前記第2の放射検出手段が放射する電磁波が前記第1の放射検出手段における電磁波放射箇所の近傍に至るまでの距離は、前記第1の放射検出手段及び前記第2の放射検出手段が放射する電磁波の半周期分の波長の整数倍に、該半周期よりも小さい所定周期分の波長を加えた距離であることを特徴とする、
移動物体検知装置。 - 請求項1に記載の移動物体検知装置であって、
前記所定周期分の波長は、前記第1の放射検出手段及び前記第2の放射検出手段が放射する電磁波の8分の1周期分の波長である、
移動物体検知装置。 - 請求項1に記載の移動物体検知装置であって、
前記第1の放射検出手段と前記第2の放射検出手段が放射する電磁波は、偏波面が直交することを特徴とする、
移動物体検知装置。 - 請求項1ないし3のいずれか1項に記載の移動物体検知装置であって、
前記第2の放射検出手段は、前記第1の放射検出手段が電磁波を放射する方向と逆向きに電磁波を放射し、該放射した電磁波を、断面が楕円形状を有する反射部材で反射させて前記第1の放射検出手段における電磁波放射箇所の近傍に向けて放射する手段であり、
前記反射部材の断面の楕円形状は、前記第1の放射検出手段及び前記第2の放射検出手段における電磁波放射箇所を二つの焦点とすることを特徴とする、
移動物体検知装置。 - 請求項1ないし3のいずれか1項に記載の移動物体検知装置であって、
前記第2の放射検出手段は、前記第1の放射検出手段の電磁波放射方向に関して背後側に位置し、前記第2の放射検出手段と前記第1の放射検出手段の間に設けられ、電磁波を屈折させる誘電体レンズを介して前記第1の放射検出手段と略同方向に電磁波を放射することを特徴とする、
移動物体検知装置。 - 電磁波を放射すると共に、該放射した電磁波が物体で反射されることにより生じる定在波を検出する第1の放射検出手段と、
前記第1の放射検出手段の電磁波放射方向に関して背後側に位置し、前記第1の放射検出手段が放射する電磁波と同じ周波数の電磁波を前記第1の放射検出手段の近傍を通過するように放射すると共に、該放射した電磁波が物体で反射されることにより生じる定在波を検出する複数の第2の放射検出手段と、を備え、
前記第1の放射検出手段及び/又は前記第2の放射検出手段により検出された定在波に基づいて、物体の移動又は移動物体の有無を検知する移動物体検知装置であって、
前記複数の第2の放射検出手段が放射する電磁波が前記第1の放射検出手段の近傍に至るまでの距離は、前記第1の放射検出手段及び前記第2の放射検出手段が放射する電磁波の半周期分の波長の整数倍に、該半周期よりも小さい所定周期分の波長の整数倍を加えた距離であることを特徴とする、
移動物体検知装置。 - 請求項6に記載の移動物体検知装置であって、
前記第1の放射検出手段と前記第2の放射検出手段が放射する電磁波は、偏波面が所定角度異なっていることを特徴とする、
移動物体検知装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/510,638 US8830114B2 (en) | 2010-09-30 | 2010-09-30 | Mobile object detecting apparatus |
JP2011545974A JP5310870B2 (ja) | 2010-09-30 | 2010-09-30 | 移動物体検知装置 |
PCT/JP2010/067090 WO2012042636A1 (ja) | 2010-09-30 | 2010-09-30 | 移動物体検知装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/067090 WO2012042636A1 (ja) | 2010-09-30 | 2010-09-30 | 移動物体検知装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012042636A1 true WO2012042636A1 (ja) | 2012-04-05 |
Family
ID=45892140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/067090 WO2012042636A1 (ja) | 2010-09-30 | 2010-09-30 | 移動物体検知装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8830114B2 (ja) |
JP (1) | JP5310870B2 (ja) |
WO (1) | WO2012042636A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014050055A1 (ja) * | 2012-09-27 | 2014-04-03 | アルプス電気株式会社 | 無線センサ装置 |
WO2015029794A1 (ja) * | 2013-09-02 | 2015-03-05 | アルプス電気株式会社 | 無線センサ装置 |
US11543511B2 (en) * | 2019-03-11 | 2023-01-03 | Panasonic Intellectual Property Management Co., Ltd. | Radar apparatus and vehicle |
US20230091178A1 (en) * | 2019-03-11 | 2023-03-23 | Panasonic Intellectual Property Management Co., Ltd. | Radar apparatus and vehicle |
WO2024116904A1 (ja) * | 2022-12-02 | 2024-06-06 | 株式会社村田製作所 | 生体情報検知装置、それを備えた車両及びベッド、並びに、生体情報検知方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200024511A (ko) | 2018-08-28 | 2020-03-09 | 삼성전자주식회사 | 대화 에이전트의 동작 방법 및 그 장치 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10239426A (ja) * | 1997-02-27 | 1998-09-11 | Ikuo Arai | 物標変位検出装置 |
JP2002267744A (ja) * | 2001-03-08 | 2002-09-18 | Toto Ltd | 物体検知装置 |
JP2002277558A (ja) * | 2001-03-19 | 2002-09-25 | Toto Ltd | 人体検知装置 |
Family Cites Families (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR698774A (fr) * | 1929-07-27 | 1931-02-05 | Philips Nv | Dispositif d'alarme |
FR809612A (fr) * | 1935-08-19 | 1937-03-08 | Telefunken Gmbh | Procédé de détection d'objets mobiles dans une zone à surveiller |
US2197028A (en) * | 1936-10-28 | 1940-04-16 | Rca Corp | Protective device |
US2203807A (en) * | 1937-08-18 | 1940-06-11 | Rca Corp | Radio beam system |
US2247246A (en) * | 1938-12-03 | 1941-06-24 | American District Telegraph Co | Micro-wave radio alarm system |
US2649538A (en) * | 1949-10-13 | 1953-08-18 | Westinghouse Air Brake Co | Space intrusion detection system |
US2660718A (en) * | 1949-12-30 | 1953-11-24 | Gen Electric | Microwave protective system |
US2656527A (en) * | 1950-07-24 | 1953-10-20 | John E Tillman | Signal deviation warning system |
US3562749A (en) * | 1967-11-20 | 1971-02-09 | Tsukushi Uchimoto | Detection system using oscillation waves |
US3733602A (en) * | 1971-05-20 | 1973-05-15 | Motorola Inc | Microwave intrusion detecting system and apparatus |
US3805061A (en) * | 1973-04-23 | 1974-04-16 | Tyco Laboratories Inc | Object detecting apparatus |
US3877002A (en) * | 1973-05-25 | 1975-04-08 | Omni Spectra Inc | Intrusion detecting system |
US4191953A (en) * | 1975-01-23 | 1980-03-04 | Microwave and Electronic System Limited | Intrusion sensor and aerial therefor |
JPS54162497A (en) * | 1978-06-13 | 1979-12-24 | Nec Corp | Clash preventive unit |
US4207560A (en) * | 1978-08-23 | 1980-06-10 | The United States Of America As Represented By The Secretary Of The Air Force | R F Area intruder detection and tracking system |
IL62589A (en) * | 1981-04-05 | 1988-02-29 | Israel Aircraft Ind Ltd | Electromagnetic field perimeter detection apparatus |
JPS5866074A (ja) * | 1981-10-15 | 1983-04-20 | Nec Corp | レ−ダ−方式 |
US4580249A (en) * | 1984-11-26 | 1986-04-01 | Gte Government Systems Corporation | Apparatus for and method of doppler motion detection with standing wave drift compensation |
US4661936A (en) * | 1984-11-26 | 1987-04-28 | Gte Government Systems Corporation | Apparatus for and method of doppler motion detection with standing wave drift compensation |
DE3447131A1 (de) * | 1984-12-22 | 1986-06-26 | Telenot Electronic GmbH, 7080 Aalen | Raumschutzanlage |
US5376922A (en) * | 1990-09-26 | 1994-12-27 | Kiss; Michael Z. | Wireless bistatic link intrusion detection system |
US5160915A (en) * | 1990-09-26 | 1992-11-03 | Kiss Michael Z | Wireless bistatic link intrusion detection system |
US5268698A (en) * | 1992-07-31 | 1993-12-07 | Smith Sr Louis P | Target acquisition, locating and tracking system |
GB9512753D0 (en) * | 1995-06-22 | 1995-08-30 | Dando David J | Intrusion sensing system |
US6208248B1 (en) * | 1999-01-28 | 2001-03-27 | Anro Engineering, Inc. | Quick response perimeter intrusion detection sensor |
US6307475B1 (en) * | 1999-02-26 | 2001-10-23 | Eric D. Kelley | Location method and system for detecting movement within a building |
JP3461498B2 (ja) | 2001-03-01 | 2003-10-27 | 徹志 上保 | 距離測定装置、距離測定設備および距離測定方法 |
US6466157B1 (en) * | 2001-07-17 | 2002-10-15 | Sensor Technologies & Systems, Inc. | Electronic fence using high-resolution millimeter-wave radar in conjunction with multiple passive reflectors |
US6885300B1 (en) * | 2002-06-05 | 2005-04-26 | The Watt Stopper, Inc. | Broad field motion detector |
JP2007170990A (ja) | 2005-12-22 | 2007-07-05 | Yokogawa Denshikiki Co Ltd | 微小移動検出装置 |
US7928900B2 (en) * | 2006-12-15 | 2011-04-19 | Alliant Techsystems Inc. | Resolution antenna array using metamaterials |
US7804441B1 (en) * | 2007-07-13 | 2010-09-28 | The United States Of America As Represented By The Secretary Of The Navy | Detection of concealed object by standing waves |
RU2369323C1 (ru) | 2008-02-20 | 2009-10-10 | Игорь Яковлевич Иммореев | Импульсный сверхширокополосный датчик |
US8138918B2 (en) * | 2009-09-17 | 2012-03-20 | Raytheon Company | Intrusion detection and tracking system |
-
2010
- 2010-09-30 US US13/510,638 patent/US8830114B2/en not_active Expired - Fee Related
- 2010-09-30 WO PCT/JP2010/067090 patent/WO2012042636A1/ja active Application Filing
- 2010-09-30 JP JP2011545974A patent/JP5310870B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10239426A (ja) * | 1997-02-27 | 1998-09-11 | Ikuo Arai | 物標変位検出装置 |
JP2002267744A (ja) * | 2001-03-08 | 2002-09-18 | Toto Ltd | 物体検知装置 |
JP2002277558A (ja) * | 2001-03-19 | 2002-09-25 | Toto Ltd | 人体検知装置 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014050055A1 (ja) * | 2012-09-27 | 2014-04-03 | アルプス電気株式会社 | 無線センサ装置 |
JPWO2014050055A1 (ja) * | 2012-09-27 | 2016-08-22 | アルプス電気株式会社 | 無線センサ装置 |
WO2015029794A1 (ja) * | 2013-09-02 | 2015-03-05 | アルプス電気株式会社 | 無線センサ装置 |
JPWO2015029794A1 (ja) * | 2013-09-02 | 2017-03-02 | アルプス電気株式会社 | 無線センサ装置 |
US11543511B2 (en) * | 2019-03-11 | 2023-01-03 | Panasonic Intellectual Property Management Co., Ltd. | Radar apparatus and vehicle |
US20230091178A1 (en) * | 2019-03-11 | 2023-03-23 | Panasonic Intellectual Property Management Co., Ltd. | Radar apparatus and vehicle |
US11782147B2 (en) | 2019-03-11 | 2023-10-10 | Panasonic Intellectual Property Management Co., Ltd. | Radar apparatus and vehicle |
WO2024116904A1 (ja) * | 2022-12-02 | 2024-06-06 | 株式会社村田製作所 | 生体情報検知装置、それを備えた車両及びベッド、並びに、生体情報検知方法 |
Also Published As
Publication number | Publication date |
---|---|
JP5310870B2 (ja) | 2013-10-09 |
US8830114B2 (en) | 2014-09-09 |
US20120235850A1 (en) | 2012-09-20 |
JPWO2012042636A1 (ja) | 2014-02-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5310870B2 (ja) | 移動物体検知装置 | |
KR100849152B1 (ko) | 위상 기반 감지 시스템 | |
JP5009981B2 (ja) | 角度分解型レーダセンサ | |
US10054424B2 (en) | Terahertz measuring device and method for measuring test objects | |
CN101680759B (zh) | 用在测量和勘测应用中的觇标 | |
CN100504437C (zh) | 雷达 | |
JP4396436B2 (ja) | 物標検出装置 | |
CN111060891A (zh) | 激光雷达 | |
US20220120864A1 (en) | Method for measuring deflection angle of galvanometer scanner, and laser radar using method | |
KR102576470B1 (ko) | 스트랜드형 대상물의 직경 및/또는 외부 윤곽을 결정하기 위한 장치 | |
JP5615428B2 (ja) | 位置測定装置及び位置測定方法 | |
JP5186724B2 (ja) | レーダ装置の光軸調整方法 | |
US20200378803A1 (en) | Optical encoder | |
CN111684237B (zh) | 检测方法、检测装置及激光雷达 | |
WO2018079268A1 (ja) | 信号処理装置、レーダ装置及び信号処理方法 | |
EP3761056A1 (en) | Optical scanner, object detector, and sensing apparatus | |
CN111344537B (zh) | 利用雷达技术检测转动位置的角度传感器 | |
JP2018165664A (ja) | レーダ装置 | |
JP2017125765A (ja) | 対象物検出装置 | |
JP5767150B2 (ja) | ターゲットサイズ測定装置 | |
KR20180003234A (ko) | 라이다 장비의 광학계 | |
US20090091737A1 (en) | Laser measuring device | |
JP2007200045A (ja) | 自律移動装置 | |
KR100660259B1 (ko) | 원통형 모노펄스 비교기 | |
CN116413689A (zh) | 一种同轴收发激光雷达和光芯片 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2011545974 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13510638 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10857849 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 10857849 Country of ref document: EP Kind code of ref document: A1 |