KR20170083365A - A human body sensing apparatus using doppler sensor - Google Patents

A human body sensing apparatus using doppler sensor Download PDF

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KR20170083365A
KR20170083365A KR1020160002727A KR20160002727A KR20170083365A KR 20170083365 A KR20170083365 A KR 20170083365A KR 1020160002727 A KR1020160002727 A KR 1020160002727A KR 20160002727 A KR20160002727 A KR 20160002727A KR 20170083365 A KR20170083365 A KR 20170083365A
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signal
unit
signals
motion
receiving antenna
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KR1020160002727A
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Korean (ko)
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KR101793108B1 (en
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김성식
김준호
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신영전자통신 주식회사
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/04—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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/505—Systems of measurement based on relative movement of target using Doppler effect for determining closest range to a target or corresponding time, e.g. miss-distance indicator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • H05B37/0227—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
    • Y02B20/44—

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

The human body detecting apparatus using the Doppler sensor of the present invention includes a transmitting and receiving antenna module 20, 30 including a plurality of transmitting and receiving antenna units, a row-specific storing unit 90, a logical summing unit 100, It is possible to accurately determine whether the object to be moved by the camera 110 is an animal whose height is lower than that of a person or not. Using such a human body detecting device in a control device of a lighting device, So that energy can be saved.

Figure P1020160002727

Description

[0001] The present invention relates to a human body sensing apparatus using a doppler sensor,

The present invention relates to a human body detecting apparatus using a Doppler sensor, and more particularly, to a human body detecting apparatus using a Doppler sensor, in which a plurality of transmitting / receiving antenna units arranged in a X- The present invention relates to a human body detecting apparatus using a Doppler sensor capable of reducing energy by determining the height of an object and discriminating whether the moving object is a human or an animal by the height of the moving object so that the illuminating lamp is lit only when the moving object is a human .

Recently, a variety of products have been produced for environmental preservation and energy saving, and energy saving type lighting apparatuses have been developed which automatically turn on and off by adding sensors to detect lighting of people or objects.

Generally, a passive infrared sensor, called a pyroelectric infrared ray (IR) sensor, is used to detect the approach of a person or object in an energy saving illuminator or system, A Doppler sensor is used which receives a signal reflected from a transmitting and receiving object at a receiving antenna and determines whether or not the moving object moves using a modulated modulation frequency caused by a Doppler effect.

As disclosed in Korean Patent Laid-Open Publication No. 10-2014-0087472, "Omnidirectional Microwave Doppler Sensor ", which is a prior art Doppler sensor for human body detection, a signal for detecting the movement of a moving object A signal synthesizer for frequency synthesizing the signal generated by the signal generator and the received signal; a signal amplifier for filtering the baseband signal synthesized and output from the signal synthesizer and amplifying the filtered signal; .

The conventional Doppler sensor for detecting human body has the advantage of being less influenced by heat or obstacles than an infrared sensor. However, in order to determine movement of a moving object in a specific space, a Doppler sensor Since the movement is detected by the length of the wavelength changed by the speed of the moving object, it can not distinguish the movements of the animal such as a dog or a cat moving at a lower level than a person, So that unnecessary energy consumption is generated.

Korean Patent Laid-Open No. 10-2014-0087472 entitled " Omnidirectional Microwave Doppler Sensor "(Open date: 2014.07.09)

It is an object of the present invention to provide a receiving antenna module including a transmitting antenna module including a plurality of transmitting antenna portions arranged in the X and Y axis directions and a receiving antenna module including a plurality of receiving antenna portions arranged in the X and Y axis directions, The height of the moving object located in the specific space is determined by the signals outputted from the antenna units and the moving object is discriminated from the person or the animal by the height of the moving object so that the lighting lamp is turned on only when the moving object is a person, The present invention provides a human body detection method using a Doppler sensor capable of reducing a human body.

In order to accomplish the above object, a human body detecting apparatus using a Doppler sensor according to the present invention includes a signal oscillation unit for generating a clock signal for detecting movement of an object, a plurality of transmission antenna units arranged in the X- and Y- A transmission antenna module configured to transmit a clock signal output from the signal oscillation unit to a space having an object through the plurality of transmission antenna units; and a plurality of reception antenna units arranged in the X-axis and Y- A receiving antenna module for outputting a plurality of carrier signals reflected by the receiving antenna units of the receiving antenna unit according to the motion of the object, a multiplexer for selecting a carrier signal among the plurality of carrier signals according to the input control signal, A multiplexer for multiplexing the selected carrier wave signal output from the multiplexer and a clock signal A frequency synthesizer for frequency synthesizing the selected carrier wave signal and a clock signal to output a frequency synthesized signal; a frequency synthesizer for receiving the frequency synthesized signal output from the signal synthesizer and amplifying the frequency synthesized signal to generate an amplified frequency synthesized signal; An object motion determining unit which receives an amplified frequency synthesized signal output from the amplifying unit and determines an object motion based on the amplified frequency synthesized signal and outputs an activated motion signal when there is an object motion, A counter unit for outputting an input control signal which is incremented by one every time the motion signal is output by the object motion determining unit; and a register having the same number of registers as the number of rows of the receiving antenna units of the receiving antenna module , Each register is configured with the same number of bit stores as the number of columns of receive antenna units A row-by-row storage unit for sequentially storing the motion signals output from the object motion determination unit in the bit stores of the respective registers, and a row-specific storage unit for storing the motion signals stored in the respective bit stores for the respective registers of the row- A logic summing unit operable to output logical summing signals activated according to the height of the object with respect to the registers of the registering unit; and a control unit for receiving the logical summing signals output from the logical summing unit and comparing the logical summing signals with a reference row value determined by the user, And determining that the moving object is an animal if the number of the activated OR signals is smaller than the reference row value.

The human body sensing apparatus using the Doppler sensor of the present invention determines the height of a moving object moving within a specific space by signals output from a plurality of transmitting and receiving antenna units and determines whether the moving object is a human or an animal by the height of the moving object It is possible to reduce the energy by separately lighting the illumination lamp only when the moving object is a person.

FIG. 1 is a block diagram of a human body detecting apparatus using a Doppler sensor of the present invention,
FIG. 2A is a configuration diagram of a transmission antenna module including a plurality of transmission antenna units of the present invention,
FIG. 2B is a configuration diagram of a receive antenna module including a plurality of receive antenna units according to the present invention;
FIG. 3 is a schematic view for explaining the operation of the human body detecting apparatus using the Doppler sensor of the present invention,
FIGS. 4A and 4B are diagrams showing binary values stored in registers and logical sum units of the row-specific storage unit, respectively, in the case of a person and an animal.

Hereinafter, a human body sensing apparatus using the Doppler sensor of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a human body detecting apparatus using a Doppler sensor of the present invention.

1, the human body sensing apparatus 200 using the Doppler sensor of the present invention includes a signal oscillation unit 10 for generating a clock signal CLK for sensing movement of an object, And transmits the clock signal CLK output from the signal oscillation unit 10 to a space having an object through a plurality of transmission antenna units SA00 to SA77 A transmitting antenna module 20 and a plurality of receiving antenna units RA00 to RA77 arrayed in the X and Y axis directions, and the receiving antenna units RA00 to RA77 perform reflection A receiving antenna module 30 for outputting a plurality of carrier signals Rxy to the plurality of carrier signals Rxy according to the input control signal CT and selecting one carrier signal among a plurality of carrier signals Rxy according to the input control signal CT, A multiplexer 40 for outputting a multiplexed signal, A signal synthesizing unit 12 for receiving the transmission signal SR and the clock signal CLK outputted from the signal oscillating unit 10 and synthesizing the frequency of the selected carrier signal SR and the clock signal CLK, An amplifying unit 60 for receiving the frequency synthesizing signal FM outputted from the signal synthesizing unit 50 and amplifying the frequency synthesizing signal FM and outputting the amplified frequency synthesizing signal AFM, The amplified frequency synthesis signal AFM outputted from the amplification unit 60 is received and the motion of the object is determined by the amplified frequency synthesis signal AFM and the activated motion signal MS is output A counter 80 for outputting an input control signal CT which is incremented by one every time the motion signal MS is output from the object motion determiner 70; The number of registers R1 to R8 that are the same as the number of rows of the receiving antenna units of the module 30 Each of the registers R1 to R8 is constituted by a number of bit stores BN equal in number to the number of columns of the receiving antenna units so that the bit storage BN of each of the registers R1 to R8, For each of the registers R1 to R8 of the row-specific storing unit 90, a row-specific storing unit 90 for sequentially storing the motion signals MS output from the object motion determining unit 70, A logical summing unit 100 for performing logical OR of the motion signals MS stored in the registers BN and outputting the logical sum signals Ai activated for the respective registers R1 to R8 according to the elevation of the object, And determines whether a moving object is a human if the number of activated logical sum signals Ai is larger than a reference row value by comparing the logical sum signal Ai with the reference row value determined by the user, The number of the OR signals Ai is smaller than the reference row value Surface is composed of a moving object in man animal determination unit 110 for determining the animal.

The operation of the human body detecting apparatus using the Doppler sensor according to the present invention is as follows.

The signal oscillating unit 10 outputs a clock signal CLK having a frequency of 10.5 GHz or more, which has high directivity, to sense motion of the object.

2A, the transmission antenna module 20 is composed of a plurality of transmission antenna units SA00 to SA77 arranged in the X-axis and Y-axis directions, and a plurality of transmission antenna units SA00 to SA77 It is assumed that a plurality of transmission antenna units SA00 to SA77 of the transmission antenna module 20 are formed of a matrix of 8X8.

 The plurality of receiving antenna units RA00 to RA77 of the receiving antenna module 30 are constituted of 64 transmitting antenna units constituted of an 8x8 matrix which is the same number as the number of the plurality of transmitting antenna units SA00 to SA77, The antenna units SA00 to SA77 are constituted by 64 to correspond to the respective receiving antenna units RA00 to RA77, and these transmitting and receiving antenna units have a linearity.

That is, the first transmission antenna unit SA00 located in the first row and the first column of the transmission antenna module 20 is connected to the first reception antenna unit The first transmission antenna unit RA00 transmits a transmission signal to a space in which the object is present through the first transmission antenna unit SA00, And outputs a first carrier signal R00. Likewise, the remaining receiving antenna units and transmitting antenna units operate in the same manner, and each of the plurality of receiving antenna units RA01 to RA77 receives the carrier signal Rxy (Rxy), which is the 64th carrier signal R77 from the second carrier signal R01, ).

The transmitting antenna module 20 and the receiving antenna module 30 are separated from each other for convenience, but the receiving antenna unit corresponding to each of the transmitting antenna units is located at a position closest to the transmitting antenna unit As shown in Fig.

In the case of the human body detecting apparatus using the conventional Doppler sensor, movement of an object is detected by using one transmitting and receiving antenna. However, in the present invention, a plurality of transmitting and receiving antenna units are used to detect movement of an object.

The multiplexer 40 selects one carrier signal among a total of 64 carrier signals Rxy according to the input control signal CT and outputs the selected carrier signal SR. The input control signal CT is composed of 6 bits to select one of the 64 carrier signals Rxy and if the input control signal CT is 000000, the multiplexer 40 outputs the selected carrier signal SR 1 carrier signal R00 and sequentially outputs carrier signals from the second carrier signals R01 each time the input control signal CT is sequentially incremented by 1. When the input control signal CT is 111111 The 64th carrier signal R77, which is the last carrier signal, is output as the selected carrier signal SR.

The input control signal CT is incremented by 1 each time the motion detector MS detects the motion signal MS by the counter 80. [

The signal synthesizer 50 frequency-synthesizes the selected carrier signal SR and the clock signal CLK output from the multiplexer 40 and outputs the frequency synthesized signal FM. The amplifier 60 amplifies the frequency synthesized signal FM) and outputs the amplified frequency synthesis signal AFM. The object motion determination unit 70 determines the motion of the object by the amplified frequency synthesis signal AFM, and when there is movement of the object, And outputs a signal MS.

That is, the operations of the signal combining unit 50, the amplifying unit 60, and the object motion determining unit 70 are the same as those of the conventional operation. In the case of the present invention, the carrier signal Rxy output from the multiplexer 40, The amplification unit 60 and the object motion determination unit 70 perform a total of 64 operations since the input control signal CT outputs a total of 64 carrier signals.

The row-specific storing unit 90 includes a plurality of registers R1 to R8. The number of the registers is equal to the number of rows of the receiving antenna units of the receiving antenna module 30, (R1 to R8) are constituted by the same number of bit stores (BN) as the number of columns of the receiving antenna units.

As shown in FIGS. 4A and 4B, when the reception antenna units are configured in a matrix structure composed of 8 rows and 8 columns, the registers of the row-specific storing unit 90 are composed of 8 registers, The first receiving antenna unit RA00 to the eighth receiving antenna unit RA07 located in the eighth column from the first column located on the first row of the receiving antenna module 30 Each motion signal MS by the 16th receiving antenna unit RA17 from the ninth receiving antenna unit RA10 located on the second row is sequentially stored in the first register R1, Are sequentially stored in the second register R2 and the respective motion signals MS by the receiving antenna units RA20 to RA27 located in the third row of the receiving antenna module 30 are stored in the third register R3 ), And in the fourth row Each of the motion signals MS by the reception antenna units RA30 to RA37 located in the fourth row is stored in the fourth register R4 and each of the motion signals MS by the reception antenna units RA40 to RA47 located on the fifth row MS stores the motion signals MS in the fifth register R5 and the rest of the registers R6, R7 and R8.

By the above-described method, the registers R1 to R8 of the row-specific storing unit 90 correspond to the height of the specific space. That is, the first register Rl stores a motion signal MS that senses the movement of an object at the lowest position in a specific space, and the last register R8 stores movement signals MS The signal MS is stored.

As shown in FIG. 3, an operation for detecting a movement of a person or an animal located in a specific space using the human body sensing apparatus 200 using the Doppler sensor of the present invention is as follows.

First, the operation of the human body sensing apparatus 200 using the Doppler sensor of the present invention when a person is located in a specific space is as follows.

The input control signal CT is incremented by 1 each time the motion signal MS is output from 000000 by the counter 80 to 111111. When the input control signal CT is in the range of 000000 to 001000, the multiplexer 40 selects each of the selected carrier signals R00 to R07 (R00 to R07) output from the respective receiving antenna units RA00 to RA07 located in the first row of the receiving antenna module 30 And the respective motion signals MS are outputted by the signal combining unit 50, the amplifying unit 60 and the object motion determining unit 70 by the respective selected carrier signals R00 to R07 As shown in FIG. 4A, 00011110 is sequentially stored in the first register R1, which is the first register, depending on whether the object moves or not. The motion signal MS is stored in each of the second register R2 and the eighth register R8, which is the last register, by the same method as described above. The motion signal MS outputs a binary number 1, which is an activated signal when a human motion is detected in a space where a person is located, and a binary number 0, which is an inactive signal, at a position where no person is present.

Therefore, as shown in FIG. 4A, the plurality of registers R1 to R8 of the row-specific storing unit 90 store the motion signal MS activated only in the region where the person is located, At least one activated motion signal MS is stored in the bit storage BN of each register from the first register R1 to the seventh register R7 in the case of a person.

However, if the target object is an animal lower than the height of the human, as shown in FIG. 4B, the bits of the first register R1, the second register R2, and the third register R3 of the row- The activated motion signal MS is stored only in the stores BN and the inactive motion signal MS is stored in the bit stores BN of the remaining registers R4 to R8.

The logical summing unit 100 performs a logical sum operation on the motion signals MS stored in the respective bit stores BN for each of the registers R1 to R8 of the row-specific storing unit 90 and outputs the result to each of the registers R1 to R8 And outputs the logical sum signals Ai that are activated in accordance with the elevation of the object.

As shown in FIG. 4A, when the moving object is a person, at least the activated motion signal MS is stored in the bit storage BN of the respective registers of the first to sixth registers R7 to R7 The logical sum signal A1 by the first register R1, the logical sum signal A2 by the second register R2, the logical sum signal A3 by the third register R3, the fourth register R4, , The logical sum signal A5 by the fifth register R5, the logical sum signal A6 by the sixth register R6 and the logical sum signal A7 by the seventh register R7 are All are activated and only the logical sum signal A8 of the eighth register R8 which is the remaining register is inactivated.

As shown in FIG. 4B, when the moving object is an animal, the bit storage BN of the respective registers for the first register R1, the second register R2 and the third register R3 includes at least The logical sum signal A1 by the first register R1, the logical sum signal A2 by the second register R2, the logical sum signal by the third register R3, All the logical sum signals A3 to A8 by the fourth to eighth registers R4 to R8 which are the remaining registers are inactivated.

The human animal judgment unit 110 judges the moving object as a human if the number of the logical sum signals Ai activated by comparing the logical sum signals Ai with the reference row values determined by the user is larger than the reference row value, Ai) is smaller than the reference row value, the moving object is judged to be an animal.

For example, if the reference row value is 4, if the object is a person, the activated logical sum signal Ai is 7 as shown in FIG. 4A and has a value larger than the reference row value 4, The human animal judging unit 110 judges that the moving object is a person and conversely if the activated logical sum signal Ai is 3 as shown in FIG. 4B, The object is judged to be an animal.

As described above, the human body sensing apparatus using the Doppler sensor of the present invention includes the transmitting and receiving antenna modules 20 and 30 including a plurality of transmitting and receiving antenna units, the row-specific storing unit 90, It is possible to accurately determine whether the object to be moved by the animal judging unit 110 is an animal whose height is lower than that of a person or a person. When such a human body sensing apparatus is used in a control apparatus of a lighting apparatus, The lighting of the illumination lamp is not controlled, and the illumination lamp is turned on only when the target object is a person, thereby saving energy.

10: signal oscillation section 20: transmission antenna module
30; Receive antenna module 40: Multiplexer
50: Signal synthesizer 60: Amplifier
70: Object motion determination unit 80:
90; Row-specific storage unit 100:
110: human animal judge

Claims (1)

A signal oscillation unit 10 for generating a clock signal CLK for sensing movement of an object;
And a plurality of transmission antenna units SA00 to SA77 arranged in the X and Y axis directions to transmit the clock signal CLK output from the signal oscillation unit 10 to the plurality of transmission antenna units SA00 to SA77 A transmitting antenna module (20) for transmitting a signal to a space in which an object exists;
A plurality of carrier signals Rxy (RAx), RAx (RAx), RAx (RAx), and Rayleigh Rx (RAx)), each of which is composed of a plurality of receiving antenna units (RA00 to RA77) arranged in the X and Y axis directions and reflected by the plurality of receiving antenna units A receiving antenna module 30 for outputting signals;
A multiplexer 40 for selecting one of the plurality of carrier signals Rxy according to the input control signal CT and outputting the selected carrier signal SR;
And outputs the selected carrier signal SR output from the multiplexer 40 and the clock signal CLK output from the signal oscillation unit 10 to frequency synthesize the selected carrier signal SR and the clock signal CLK, A signal synthesis section (50) for outputting a synthesized signal (FM);
An amplifying unit 60 receiving the frequency synthesizing signal FM outputted from the signal synthesizing unit 50 and amplifying the frequency synthesizing signal FM and outputting the amplified frequency synthesizing signal AFM;
The amplification unit 60 receives the amplified frequency synthesis signal AFM, determines the movement of the object by the amplified frequency synthesis signal AFM, and outputs the activated motion signal MS when there is movement of the object An object movement determining unit 70 for outputting an object movement;
A counter 80 for outputting an input control signal CT that is incremented by one every time the motion signal MS is output from the object motion determiner 70;
The number of registers R1 to R8 is the same as the number of rows of the receiving antenna units of the receiving antenna module 30 and each of the registers R1 to R8 is a register And sequentially stores the motion signals MS output from the object motion determination unit 70 in the bit storage BN of the respective registers R1 to R8 The row-specific storage unit 90:
The motion signals MS stored in the respective bit stores BN are subjected to the logical sum operation on the registers R1 to R8 of the row-specific storing unit 90 and the motion signals MS to the registers R1 to R8 A logical summing unit 100 for outputting the logical sum signals Ai activated according to the logical sum; And
When the number of the logical sum signals Ai output from the logical summing unit 100 is compared with the reference row value determined by the user and the logical sum signal Ai is larger than the reference row value, And determining a moving object as an animal when the number of activated logical sum signals (Ai) is smaller than a reference row value. The human body detecting apparatus according to claim 1,
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109031220A (en) * 2018-07-23 2018-12-18 惠州市华阳光电技术有限公司 A kind of Radar cross-section redaction filtering method and its circuit
WO2019045206A1 (en) * 2017-08-31 2019-03-07 박동수 Standby power disconnection outlet using doppler sensor
KR102039569B1 (en) * 2019-06-04 2019-11-01 김성식 Method Of Identifying Human Being And Animal Using Microwave Motion Sensor
WO2021007293A1 (en) * 2019-07-08 2021-01-14 Strong Force Vcn Portfolio 2019, Llc Systems and methods for detecting occupancy using radio signals

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Publication number Priority date Publication date Assignee Title
JP3621679B2 (en) 2001-12-28 2005-02-16 三菱電機株式会社 Vehicle interior object detection device
JP4259419B2 (en) 2004-07-30 2009-04-30 パナソニック電工株式会社 Human body detection sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019045206A1 (en) * 2017-08-31 2019-03-07 박동수 Standby power disconnection outlet using doppler sensor
CN109031220A (en) * 2018-07-23 2018-12-18 惠州市华阳光电技术有限公司 A kind of Radar cross-section redaction filtering method and its circuit
KR102039569B1 (en) * 2019-06-04 2019-11-01 김성식 Method Of Identifying Human Being And Animal Using Microwave Motion Sensor
WO2021007293A1 (en) * 2019-07-08 2021-01-14 Strong Force Vcn Portfolio 2019, Llc Systems and methods for detecting occupancy using radio signals

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