CN106842337A - A kind of microwave detector and the motion sensor with the detector - Google Patents
A kind of microwave detector and the motion sensor with the detector Download PDFInfo
- Publication number
- CN106842337A CN106842337A CN201510876204.6A CN201510876204A CN106842337A CN 106842337 A CN106842337 A CN 106842337A CN 201510876204 A CN201510876204 A CN 201510876204A CN 106842337 A CN106842337 A CN 106842337A
- Authority
- CN
- China
- Prior art keywords
- plate aerial
- antenna
- inductor
- microwave detector
- field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
To realize that motion sensor is as small as possible and requirement of not visibleization as far as possible, the invention provides a kind of microwave detector and the motion sensor with the detector, the microwave detector is made up of a DRO transceiver and a plate aerial, wherein plate aerial is made up of the antenna sheet connected by microstrip line, and the plate aerial is designed to：The plane of main probe field central axis and plate aerial is hung down between axle has angle of inclination beta " to ensure that main probe field points to detection direction needed for automatics; while; the plane of edge detection pair field central axis and plate aerial is hung down has inclination angle Φ between axle " and edge detection pair field subtended angle θ " very little, it is vertical or approximately perpendicular to automatics to ensure edge detection pair field.Microwave detector of the present invention can substantially reduce the size of motion sensor under conditions of normal operation is ensured, and can be installed on the stowed position of automatics.
Description
Technical field
The invention belongs to inductor, induction device field, it is related to a kind of microwave detector and uses the spy
Survey the motion sensor of device.
Background technology
We generally the device call motion sensor of the motion for detecting people or object in environment,
General motion sensor can all apply to microwave, infrared ray or laser technology.Wherein, microwave motion
Inductor is detected and sensed by traditional Principles of Radar, and the Principles of Radar are Doppler effect,
I.e. one oscillator launches microwave line and forms probe field from antenna with certain frequency range,
Microwave line can be detected people or object reflection in field, and reflected ray returns to antenna along transmitting thread path,
The frequency for contrasting emission lines and reflected ray by a blender afterwards changes：If emission lines and reflection
There is the target of motion in the inconsistent then explanation probe field environment of frequency of line, so as to excite inductor to produce
Raw induced signal.
Microwave motion inductor from it is market-oriented for the first time so far several technologies are experienced over 50 years
Developing stage：
Use frequency higher：The 9.450GHz of the X-band used from the seventies is to the eighties
K frequency bands (24.125GHz), this allow inductor thickness from the near 10cm of 15cm；
The nineties instead of horn-like antenna using plate aerial so that the thickness of inductor from
The near 7cm of 10cm；
Waveguide is instead of using DRO (Dielectric resonator oscillator) transceiver afterwards within 2000 to receive and dispatch
Device so that the thickness of inductor further drops to 5cm by 7cm.
However, even if with newest improved technology, the integral thickness of inductor can not be less than 5cm,
This is because, the radiation its center axis that plate aerial sends are perpendicular to plate aerial plane,
Meanwhile, probe field --- sensed region, such as automatically-controlled door front region --- average axis be to incline
Oblique, such as the vertical axis in average axis and detected face is into 30 ° of angles.In order to be formed such as citing institute
The 30 ° of angles stated, so far, the way of main flow is the mechanicalness whole DRO transceiver modules of inclination
Make the vertical line in its plate aerial and detected face into 60 ° of angles, therefore, inductor needs corresponding thick
Degree guarantee can load DRO components and a corresponding functional perspective.
Additionally, since it is desired that by machinery adjustment formed inclination angle, so needing to avoid the spy of inductor
Survey the moving component influence that field receives automatics, such as the automatically-controlled door gate flap in moving, if by shadow
Sound may result in the self-interference circulation that automatically-controlled door forms On-Off-On, meanwhile, this machinery adjustment angle
Mode can also increase the distance between main probe field and automatically-controlled door gate flap, it is therefore desirable to find a folding
In solution avoid around automatically-controlled door produce an excessive detection blind area.
In addition, either the large scale inductor of the first generation or needing the sensing of machinery adjustment angle now
Device, it can only be installed on automatic door gantry top frame portion front end or other can realize detection sensor act on
Position, such as doorframe top frame lower end, due to this limitation, inductor can be accounted at the top of automatically-controlled door
With obviously position, it appears abnormal prominent, so that user thinks very unsightly.However,
Current technology can not still meet user and be also needed into one for demand attractive in appearance, therefore motion sensor
Step is improved.
User wishes that inductor is the smaller the better, and its final installation site should be automatic head jamb and oneself
In crack between dynamic Men Menye or automatic head jamb it is lower along partial interior, with realize it is complete not
Visualization.
One newest invention (Patent No.：EP1134836A2 it is) automatically-controlled door, particularly slides
A kind of door, there is provided inductor.Design of the inductor by changing plate aerial generate one with
, into the probe field at certain inclination angle, this probe field with inclination angle can be by adjusting flat board for antenna plane
The phase angle and power of each antenna sheet are achieved in antenna.So as to avoid having to carry out machinery adjustment angle
Inductor thickness increases caused by degree, however, the patent has explicitly pointed out motion sensor presence
Another bad result, i.e., be not intended to sensed automatically-controlled door gate flap movement and lead due to can sense
Automatically-controlled door is caused the self-induction circulation of On-Off-On occur.
In order to avoid above mentioned problem, EP1134836A2 patents inventors herein propose a solution,
I.e. using the transmitting antenna and reception antenna being separated from each other, two groups of antenna performances are different and two groups of antennas
Installation site is separated by a certain distance.
Fig. 8 of the patent is one of its most preferred embodiment, and inventor illustrates that the feature of the inductor is：Hair
Penetrate antenna and reception antenna and be located at the right and left of substrate axisymmetricly.Inductor described in the most preferred embodiment
It is vertically mounted on automatic head jamb behind.Although the inductor is by using the transmitting day that can produce inclination angle
Line causes that its thickness becomes very thin, however it is necessary that certain width is ensureing transmitting antenna and reception antenna phase
Mutually separate, in its picture for being shown, can be easy to really according to the given frequency that the inductor is commonly used
Fixed its width is about 15cm.
In sum, so far, with advances in technology, user needs for a part for inductor
Ask and be met, but, up to now, even if with newest technology, the final hope of user
--- in a crack that may be mounted between automatic head jamb and automatically-controlled door gate flap or be embedded in from
Along the machine for miniature inductors of partial interior under dynamic head jamb --- also it is not carried out.
The content of the invention
The present invention provides a kind of microwave detector, and it ensureing is not in self-induction that purpose of its invention is
Answer the size for reducing detector on the basis of phenomenon as far as possible.
Realizing the technical scheme of invention is：A kind of microwave detector, it is characterised in that the microwave sounding
Device is made up of a DRO transceiver and a plate aerial, and wherein plate aerial is connected by by microstrip line
The antenna sheet composition for connecing, it is characterised in that the plate aerial is designed to, and the plate aerial is set
It is calculated as：There is slanted angle β " between the vertical axis of the platen surface of main probe field central axis and plate aerial
To ensure the detection direction needed for main probe field sensing automatics, meanwhile, it is opposite with the sensing of main probe field
Edge detection pair field central axis and plate aerial platen surface vertical axis between have slanted angleNot less than 75 °, and edge detection pair field subtended angle θ " be no more than 30 °, with avoid visit
The movement of the automatics itself for being not intended to be detected is measured, so, even if detector distance is automatic
Device is close, and detector also can normal work.
Further, above-mentioned design can be designed so that signal reaches each by changing the circuit of microstrip line
The phase angle of different antennae piece and distribute to the power difference of each antenna sheet and be achieved.
The DRO transceivers are standard DRO transceivers, and the advantage of this standard transceiver is it
The power that uses, frequency, harmonic wave are in the range of telecommunication department allows to use.
Preferably, DRO transceivers can be square standard DRO transceivers, and its length of side is no more than
20.2mm。
The antenna sheet of the plate aerial is divided into 2 groups, and one of which is transmitting antenna, and another group is to connect
Receive antenna.
Further, 2 groups of antenna sheets are axisymmetricly distributed.
Further, the thickness of the microwave detector is no more than 20mm.
Preferably, the thickness of microwave detector can be 6.6mm.
The present invention also provides a kind of motion sensor, and it is automatics that its goal of the invention is, particularly
Automatically-controlled door, there is provided one can meet market for size and the inductor of installation site needs.
Realizing the technical scheme of invention is：A kind of motion sensor, including microwave detector and shell, institute
State microwave detector to be made up of a DRO transceiver and a plate aerial, wherein plate aerial is by leading to
The antenna sheet composition of microstrip line connection is crossed, the plate aerial is designed to：Main probe field central axis with
There is slanted angle β between the vertical axis of the platen surface of plate aerial " to ensure that it is automatic that main probe field is pointed to
Detection direction needed for device, meanwhile, the central shaft of the secondary field of the edge detection opposite with the sensing of main probe field
There is slanted angle between the vertical axis of the platen surface of line and plate aerialNot less than 75 °, and
And the subtended angle θ of edge detection pair field " it is no more than 30 °.
Further, probe body is designed to additional antenna stack positioned at the part of antenna front ends.
Further, the thickness of inductor is no more than 30mm.
Preferably, the thickness of inductor can be 15mm.
Preferably, the microwave detector can be installed in inductor inner inclination, make it with shell into
Fixed angle.
Preferably, can be automatically-controlled door, escalator, the transport of people's row with the automatics of the inductor
Band.
Preferably, the motion sensor can be installed on the concealed location of automatics, such as：It is horizontally mounted
In automatic head jamb lower end outside or be embedded in automatic head jamb lower end.
The advantage of the invention is that：
1., by the particular design of plate aerial, the angular emission probe field to design is enabled it to,
Necessary aerial mechanical angle adjustment in current technology is solved, first of inductor size is overcome
Limitation, hence in so that the thickness of inductor reduces.
2. by the particular design of plate aerial, make it edge detection pair field perpendicular to or near normal
In automatics, such as automatically-controlled door gate flap is solved between must keep certain between two groups of antennas of inductor
Away from just can guarantee that the normal problem for using, second limitation of inductor size is overcome, hence in so that
The width of inductor reduces.
3. it is this to change the invention provides the method and inductor of the antenna in a kind of improvement DRO circuits
Enter to allow transceiver to keep minimum size.Because component is standard, reducing size can be with
Reduces cost；And may insure that product can be by the approval of telecommunication department；And its performance with before
The product of circulation is identical.
4. the inductor after the design of adjustment plate aerial can launch one compared to the bigger model of conventional inductor
The main probe field for enclosing, reduces detection blind area.
5. in order to reach the target for making inductor small as far as possible, compact, it is of the invention another
Purpose, its antenna is designed to：The detection direction of main probe field has a given angle so that sense
Even if answering device to be horizontally installed to automatic head jamb lower end can also form certain field of detecting before gate flap.
Brief description of the drawings
Fig. 1 is automatically-controlled door motion sensor 3D schematic diagrames；
Fig. 2 is traditional inductor side view anterior installed in automatic head jamb；
Fig. 3 is traditional inductor side view installed in automatic head jamb bottom；
Fig. 4 is the microwave sensor radiation direction schematic diagram for being installed on automatic head jamb bottom；
Fig. 5 is edge detection pair field comparison diagram；
Fig. 6 is the motion vector decomposing schematic representation that gate flap is moved in edge detection pair field；
Fig. 7 improves plate aerial design circuit diagram for the present invention；
Fig. 8 is the radiation direction schematic diagram that plate aerial is improved shown in Fig. 7；
Fig. 9 is installed on radiation direction schematic diagram during automatic head jamb lower end for antenna shown in Fig. 7；
Figure 10 is motion sensor stereogram of the present invention；
Figure 11 is the motion sensor side view of the present invention for being installed on doorframe top frame bottom outside；
Figure 12 is the motion sensor side view of the present invention for being installed on the inclined angle in doorframe top frame bottom outside；
Figure 13 is the motion sensor side view of the present invention for being embedded in doorframe top frame bottom internal；
Figure 14 is the motion sensor schematic diagram of the present invention for being installed on the anterior inclined angle of doorframe top frame.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing,
The present invention is described in more detail.It should be appreciated that specific embodiment described herein is only used to solve
The present invention is released, is not intended to limit the present invention.
By taking the microwave motion inductor of automatically-controlled door as an example, operation principle such as Fig. 1 of microwave motion inductor
It is shown, wherein, inductor 1 is installed on the front end of top frame 2 for sliding automatically-controlled door 3, and automatically-controlled door has door
Leaf 3a and 3b, inductor can produce main probe field 4, and main probe field 4 is back to automatically-controlled door and positioned at certainly
Dynamic side in front of the door, tomographic projection scope 4a of the probe field 4 in ground is ellipse.As a rule, 4a
Width W need to be wider than 3 width sums of gate flap 3a and 3b of automatically-controlled door；The depth D of 4a takes
Certainly in automatically-controlled door from the time of instruction that inductor sends to required for opening door completely is received, generally and
Speech D is less than W.
For example, a fan width is the automatically-controlled door of 2m, the width W of 4a is that 3m, depth D are 1.5
Rice, now, when inductor 1 senses pedestrian or mobile leading edge of the target 5 from main probe field 4
4b enters fashionable, will think that automatically-controlled door 3 sends instruction, has excited opening.Depth D be based on pedestrian or
Mobile target 5 is with ordinary people's scanning frequency degree --- usually 0.7m/s --- from main probe field front edge 4b
Automatically-controlled door is opened this condition and is calculated completely when moving towards automatically-controlled door side 4c points.Depth is to subtended angle 4d
Correspondence produces D, width to produce W, usual 4d to be less than 4w to subtended angle 4w correspondences, in this example,
4w=80 °, 4d=34 °.
Applicant it has been investigated that, until today, even if being matched somebody with somebody using state-of-the art DRO transceivers 5
The reason for size that conjunction plate aerial 6 can not still reach the machine for miniature inductors for intentionally getting is required exists
In：Plate aerial transmitting is a probe field perpendicular to antenna plane, it is therefore desirable to by component
(DRO+ antennas) adjusts out certain angle to meet the demand of probe field, thus inductor thickness
Degree h at least needs to include that DRO components 5 coordinate the hardware thickness of plate aerial 6 and necessary angle
Degree space, the thickness which results in inductor can not further reduce.In addition, so far, group
Part must be all built in outer protection shell, and this is accomplished by keeping one between component and containment vessel inwall
Fixed distance, with the interference ripple for avoiding inwall from producing, this also results in the increase of product final thickness size,
And inductor can not be embedded in the inside of the lower edge of top frame 2, otherwise main probe field can be caused complete
It is complete to launch or far cause very much excessive detection blind area apart from gate flap.
Fig. 2 show a kind of main probe field vertical section of traditional inductor for being installed on the front end of top frame 2
Schematic diagram.As seen from the figure, traditional inductor is made up of DRO transceivers 5 and flat plane antenna 6,
The main shaft 7 of its probe field is perpendicular to antenna plane.In order to one can be produced to be located at automatically-controlled door front
And the suitable main probe field of scope, it is necessary to the probe assembly that adjustment is made up of DRO and antenna, make it
With ground perpendicular into α angles, now, into β angles between main shaft 7 and ground perpendicular, with 2.2m
Standard automatic door gantry it is high as a example by, now 60 ° of α ≈, 30 ° of β=90 °-α ≈.Although the thickness of probe assembly
Degree is only 6.6mm, but, due to the presence of inclination alpha, the height of inductor is but very high, generally sensing
The height of device will not be less than 50mm.Being installed on the inductor of automatic head jamb front end can seem abnormal prominent,
User can be made not feel well, therefore, inductor should smaller more not visibleization it is better, inductor it is optimal
Installation site should be top frame bottom.
Fig. 3 show a kind of microwave motion inductor for being installed on automatic sliding door top frame bottom, due to inclining
The presence of angle α, the height of inductor can not still be less than 50mm, therefore, asking described in above-mentioned example
Topic is still present.Additionally, this inductor usually requires that the width of automatic head jamb d1 parts is more than
100mm, in order that automatically-controlled door meets the universal standard, d2 partial widths can not be too big, typically about 50mm.
Although EP1134836A2 patents propose the method for solving necessary machinery adjustment angle：Pass through
The phase angle of each different antennae piece is reached using special antenna traces design improvement signal and distribute to every
The different power of individual antenna sheet allows that plate aerial produces a central axis and plate aerial plane
Probe field in a certain angle, but, the inductor can produce self-induction, cause automatically-controlled door to occur not
The self induction that can be closed, in order to overcome self induction, antenna must be separated into hair by the invention
End and receiving terminal and at intervals are penetrated, can be easy to according to the given frequency that the inductor is conventional
Determine its width about 15cm.
In order to overcome this, it may be desirable to solution be design it is a kind of without pair probe field antenna,
Or the power grade of the secondary probe field of reduction to a very small value, or a kind of secondary probe field of design refers to
The direction supported or opposed to gate flap.The above method is related to a more complicated antenna and DRO circuits, this
In industry and do not apply to；Additionally, the size of the antenna of complexity and DRO circuits inductor difficult to realize is use up
Small target and may as far as possible use the DRO components of standard.
By the detection on the spot in some places, it has been found that when secondary probe field, i.e., it is herein described
When edge detection pair field is vertically or standard is perpendicularly oriented to gate flap, the motion of gate flap will not be detected, even if
Inductor is close to gate flap.
The reason for applicant is found that this phenomenon of generation by research：
1. plate aerial employs separate structure, and each group antenna is formed by microstrip line connection antenna sheet, its
The radiation diagram of generation is (radiation diagram is with decibel as scale) as shown in Figure 4, the main lobe of probe field in radiation diagram
It is main probe field 10 ', it is pointed to back to gate flap direction；The side lobe of probe field is edge detection in radiation diagram
Secondary field 11 ', it is pointed to main probe field 10 ' conversely, pointing to gate flap direction.Now, due to edge detection
The sensing of secondary field 11 ', the gate flap sensed in movement that inductor will be wrong.But, edge detection
The reflected energy intensity that secondary field 11 ' obtains is directly proportional into sectional area during probe field to target, such as
Shown in Fig. 5, when inductor is co-located, the probe field produced when edge detection pair field 11 ' is vertical
When detected target surface, sectional area is minimum.
2. reception antenna can only sense the component motion of special sensing reception antenna, due to this spy
Property, as shown in fig. 6, in automatically-controlled door closing process, the motion V of gate flap can be decomposed into gate flap section
The center of area and reception antenna line vector component V ' and the vector component perpendicular to the line, wherein,
V '=Vcos δ, when gate flap edge enters in edge detection pair field, can be anti-by a part of emitted energy
Be incident upon reception antenna, then the control circuit of inductor will receive back wave that mobile target sends and to
Inductor sends signal.This signal for being not intended to be received can cause automatically-controlled door to be again turned on, final to touch
Send out the circulation of On-Off-On.But, when gate flap is close to closing, close to 90 °, this means that can quilt for δ
The component of the sensing reception antenna for sensing is approximately 0.
Above-mentioned 2 factors --- the motional induction vector component of minimum sectional area and minimum --- generation it is many
General Le signal is extremely faint, so that inductor can not produce induced signal.Additionally, when gate flap enters side
Be typically in the latter stage of automatically-controlled door closing during the secondary field of edge detection, the speed of gate flap can drop to it is very low, or even
Close to 0, this is also resulted in can not excite inductor to send induced signal.
Studied more than, applicants have invented the microwave detector after a kind of improvement, be by the length of side
The square standard DRO transceivers of 20.2mm and flat board antenna sets into the advantage of this standard transceiver
It is that its power for using, frequency, harmonic wave are in the range of telecommunication department allows to use.Microwave
The size of detector is 25 × 25 × 6.6mm, as shown in Figure 7：Plate aerial 6 " is by by microstrip line 9 "
The antenna sheet 8 of connection " is constituted, and transmitting antenna piece group and reception antenna piece group are symmetrically shown on axle A-A '.Figure
8 is schematic longitudinal section of the probe field that produces of plate aerial shown in Fig. 7 along axle A-A ', as shown in the figure 10 "
It is main probe field, 7 " be main probe field central axis, 11 " be edge detection pair field, 12 " it is edge detection
There is inclination angle between the vertical axis of the plane of secondary field central axis, main probe field central axis and plate aerial
Detection direction needed for automatics is pointed in β "=30 ° to ensure main probe field, meanwhile, edge detection pair field
Positioned at radiation diagram -23dB places, there is inclination angle between the vertical axis of plane of its center axis and plate aerialTo ensure that edge detection pair field is vertical or reduces approximately perpendicular to automatics and as far as possible side
The subtended angle θ of the secondary field of edge detection ", now, θ "=20 °, the microwave detector can avoid detecting not wishing
The movement of the automatically-controlled door gate flap that prestige is detected, so, even if detector is installed on doorframe top frame behind
There was only the spacing of very little between gate flap, detector also can normal work.
Fig. 9 is horizontally installed to radiation field figure during automatic head jamb lower end for microwave detector shown in Fig. 7.
As seen from the figure, now the detected region in front of automatically-controlled door is pointed in its main detection field tilt, while edge is visited
Survey secondary field and automatically-controlled door gate flap, now, the microwave sounding are pointed to the angle approximately perpendicular to automatically-controlled door gate flap
Device will not detect the movement of the automatically-controlled door gate flap for being not intended to be detected, and with preferable main detection
.
According to one embodiment of present invention, the size of microwave detector is 25 × 25 × 15mm.
According to one embodiment of present invention, the size of microwave detector is 25 × 25 × 20mm.
According to one embodiment of present invention, the plane of main probe field central axis and plate aerial hang down axle it
Between angle of inclination beta "=30 °；Inclining between the vertical axle of plane of edge detection pair field central axis and plate aerial
Oblique angleThe secondary field subtended angle θ of edge detection "=30 °.
Meanwhile, apply for artificial automatics, particularly automatically-controlled door, there is provided one it is as shown in Figure 10 can
To meet market for size and the inductor of installation site needs.
The motion sensor, including microwave detector and shell, the microwave detector are horizontally installed to sense
Answer inside device, its plate aerial 6 " circuit design as shown in fig. 7, detector produce main probe field with
Antenna plane is into a given angle, while edge detection pair field is put down perpendicular to or approximately perpendicular to gate flap
Face direction is avoiding interference；The part that probe body is located at antenna front ends is designed to additional antenna stack.
The size of inductor is 75 × 50 × 15mm；The inductor can apply to automatically-controlled door, escalator, people
Row conveyer belt.
According to one embodiment of present invention, the size of the inductor is 75 × 50 × 17mm.
According to one embodiment of present invention, the size of the inductor is 75 × 50 × 20mm.
According to one embodiment of present invention, the size of the inductor is 75 × 50 × 30mm.
The inductor can be installed on automatically-controlled door, escalator, the concealed location of people's row conveyer belt, such as：
It is horizontally installed to automatic head jamb lower end.Now, the schematic longitudinal section of inductor and probe field such as Figure 11
It is shown, the angle of inclination beta wherein plane of main probe field central axis and plate aerial is hung down between axle "=30 °；
Inclination angle between the vertical axle of plane of edge detection pair field central axis and plate aerialDetector
Will not mistake the movement for sensing automatically-controlled door gate flap, and with less ideal dimensions, be difficult by user
It was observed that.
According to one embodiment of present invention, as shown in figure 12, in order to expand detection area, can be with
Microwave detector is inclined and is installed on inside inductor.Now, main probe field central axis and plate aerial
Plane hang down axle between angle of inclination beta "=30 ° of+γ；Edge detection pair field central axis is flat with plate aerial
Inclination angle between the vertical axle in faceNow, γ often increases by 5 ° of height of inductor and can increase about
1mm, probe field 4 can increase 30cm in the depth D of the tomographic projection scope 4a on ground.But,
Increasing inclination angle can also increase the possibility that the movement of automatically-controlled door gate flap is detected in edge detection pair field, therefore, γ
It is difficult excessive, in the present embodiment, γ=5 °, the size of the inductor is 75 × 50 × 16mm.
According to one embodiment of present invention, microwave detector is inclined the motion being installed on inside inductor
Inductor, its γ=5 °, the size of the inductor is 75 × 50 × 20mm.
According to one embodiment of present invention, microwave detector is inclined the motion being installed on inside inductor
Inductor, its γ=10 °, the size of the inductor is 75 × 50 × 17mm.
According to one embodiment of present invention, microwave detector is inclined the motion being installed on inside inductor
Inductor, its γ=10 °, the size of the inductor is 75 × 50 × 30mm.
According to one embodiment of present invention, microwave detector can directly be inlayed and be installed on the interior of top frame 2
Portion, as shown in figure 13, the bottom of top frame 2 is provided with groove 21, and microwave detector is installed on inside groove 21,
Detector antenna outside covering matcoveredn 22, the bottom surface of protective layer 22 is approximate with the bottom bottom surface of top frame 2 to put down
OK, it is achieved thereby that complete not visibleization of inductor.
According to one embodiment of present invention, inductor can be installed on the front end of top frame 2, such as Figure 14
It is shown, incline due to having between the vertical axle of the plane of the main probe field central axis of microwave detector and plate aerial
Oblique angle β ", therefore the inclined angle alpha of detector can accordingly reduce by 2 β ", therefore, compared to traditional sensing
Device, inductor height of the invention can be reduced substantially.
It should be noted that and understand, in the feelings for not departing from the spirit and scope required by the claims in the present invention
Under condition, various modifications and improvements can be made to the present invention of foregoing detailed description.It is therefore desirable to protect
The scope of technical scheme do not limited by given any specific exemplary teachings.
Claims (10)
1. a kind of microwave detector, it is characterised in that the microwave detector is by a DRO transceiver
Constituted with a plate aerial, wherein plate aerial is made up of the antenna sheet connected by microstrip line, it is special
Levy and be, the plate aerial is designed to：Main probe field central axis and the platen surface of plate aerial
There is slanted angle β between vertical axis " to ensure the detection direction needed for main probe field sensing automatics,
Meanwhile, the central axis of opposite with the sensing of main probe field edge detection pair field and the platen surface of plate aerial
Vertical axis between have slanted angleNot less than 75 °, and edge detection pair field subtended angle
θ " is no more than 30 °.
2. microwave detector according to claim 1, it is characterised in that the DRO transceivers are
Standard DRO transceivers.
3. microwave detector according to claim 1, it is characterised in that the antenna of the plate aerial
Piece is divided into 2 groups, and one of which is transmitting antenna, and another group is reception antenna, and 2 groups of antenna sheets are in axle
It is symmetrical.
4. microwave detector according to claim 1, it is characterised in that the microwave detector
Size is no more than 25 × 25 × 20mm.
5. microwave detector according to claim 1, it is characterised in that the subtended angle of edge detection pair field
θ " can be 20 °.
6. a kind of motion sensor, including microwave detector and shell, the microwave detector is by one
DRO transceivers and plate aerial are constituted, and wherein plate aerial is by the antenna sheet that is connected by microstrip line
Composition, it is characterised in that the plate aerial is designed to：Main probe field central axis and plate aerial
Platen surface vertical axis between there is slanted angle β " needed for ensure that main probe field points to automatics
Detection direction, meanwhile, the central axis and flat board of opposite with the sensing of main probe field edge detection pair field
There is slanted angle between the vertical axis of the platen surface of antennaNot less than 75 °, and edge is visited
Survey the subtended angle θ of secondary field " it is no more than 30 °.
7. motion sensor according to claim 6, it is characterised in that before the shell is located at antenna
The part at end is designed to additional antenna stack.
8. motion sensor according to claim 6, it is characterised in that the size of inductor is no more than
75×50×30mm。
9. motion sensor according to claim 6, it is characterised in that the microwave detector can be with
Installed in inductor inner inclination, its angle between shell is no more than 10 °.
10. according to any automatics of claim 1-9, it is characterised in that the automatics can
Being automatically-controlled door, escalator, people's row conveyer belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510876204.6A CN106842337B (en) | 2015-12-03 | 2015-12-03 | A kind of microwave detector and the motion sensor with the detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510876204.6A CN106842337B (en) | 2015-12-03 | 2015-12-03 | A kind of microwave detector and the motion sensor with the detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106842337A true CN106842337A (en) | 2017-06-13 |
| CN106842337B CN106842337B (en) | 2018-08-14 |
Family
ID=59150197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510876204.6A Active CN106842337B (en) | 2015-12-03 | 2015-12-03 | A kind of microwave detector and the motion sensor with the detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106842337B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484961A (en) * | 2018-12-28 | 2019-03-19 | 苏州江南嘉捷电梯有限公司 | A kind of escalator and automatically-controlled door linked system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2536151A1 (en) * | 1974-08-13 | 1976-02-26 | Texas Instruments Inc | SOLID STATE MICROWAVE ENERGY SOURCE |
| US5014022A (en) * | 1989-12-13 | 1991-05-07 | Hughes Aircraft Company | Switched-loop/180 degree phase bit with aperture shutter capabilities |
| JPH05205865A (en) * | 1992-01-23 | 1993-08-13 | Sharp Corp | Microwave oven |
| EP1134836A2 (en) * | 2000-03-13 | 2001-09-19 | agta record ag | Sensor device for a door installation especially a detecting- and/or monitoring device for automatic door installation |
| CN201293840Y (en) * | 2008-11-27 | 2009-08-19 | 武光杰 | Microwave mobile sensor |
| CN103078177A (en) * | 2013-01-15 | 2013-05-01 | 西安普天天线有限公司 | Dual-polarization feed source of microwave antenna of synchronous data hierarchy |
| CN204057543U (en) * | 2014-08-15 | 2014-12-31 | 比业电子（北京）有限公司 | A kind of microwave detecting device for opening and closing escalator |
| CN205246903U (en) * | 2015-12-03 | 2016-05-18 | 比业电子（北京）有限公司 | Microwave detection ware and utilize motion -sensitive ware of this detector |
-
2015
- 2015-12-03 CN CN201510876204.6A patent/CN106842337B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2536151A1 (en) * | 1974-08-13 | 1976-02-26 | Texas Instruments Inc | SOLID STATE MICROWAVE ENERGY SOURCE |
| US5014022A (en) * | 1989-12-13 | 1991-05-07 | Hughes Aircraft Company | Switched-loop/180 degree phase bit with aperture shutter capabilities |
| JPH05205865A (en) * | 1992-01-23 | 1993-08-13 | Sharp Corp | Microwave oven |
| EP1134836A2 (en) * | 2000-03-13 | 2001-09-19 | agta record ag | Sensor device for a door installation especially a detecting- and/or monitoring device for automatic door installation |
| CN201293840Y (en) * | 2008-11-27 | 2009-08-19 | 武光杰 | Microwave mobile sensor |
| CN103078177A (en) * | 2013-01-15 | 2013-05-01 | 西安普天天线有限公司 | Dual-polarization feed source of microwave antenna of synchronous data hierarchy |
| CN204057543U (en) * | 2014-08-15 | 2014-12-31 | 比业电子（北京）有限公司 | A kind of microwave detecting device for opening and closing escalator |
| CN205246903U (en) * | 2015-12-03 | 2016-05-18 | 比业电子（北京）有限公司 | Microwave detection ware and utilize motion -sensitive ware of this detector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484961A (en) * | 2018-12-28 | 2019-03-19 | 苏州江南嘉捷电梯有限公司 | A kind of escalator and automatically-controlled door linked system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106842337B (en) | 2018-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6950054B1 (en) | Handheld radar frequency scanner for concealed object detection | |
| US6831590B1 (en) | Concealed object detection | |
| US9106107B2 (en) | Contactless power transmission device provided in a vehicle for charging an electronic device | |
| JP6654506B2 (en) | Radar equipment | |
| US20130021192A1 (en) | Millimeter wave energy sensing wand and method | |
| US11031966B2 (en) | Ultrasonic proximity sensing for SAR mitigation | |
| US7167093B2 (en) | Method of steering capacitor fields for use in capacitive sensing security systems | |
| US20200292654A1 (en) | Antenna apparatus | |
| CN205246903U (en) | Microwave detection ware and utilize motion -sensitive ware of this detector | |
| CN106842337A (en) | A kind of microwave detector and the motion sensor with the detector | |
| US20070030195A1 (en) | Concealed object detection | |
| CN106597129A (en) | Microwave anechoic chamber | |
| US20180209817A1 (en) | Active proximity sensor with adaptive electric field control | |
| JP2019013100A (en) | Wireless power feeding system | |
| GB2416850A (en) | Method and device for security searches | |
| KR102440555B1 (en) | Electronic device including antenna unit | |
| US20150022391A1 (en) | System and a method for illumination and imaging of an object | |
| CN206411196U (en) | A kind of microwave dark room | |
| CN211670322U (en) | Low sidelobe antenna | |
| US6320124B1 (en) | Electrophysiological faraday box | |
| JP2017092145A (en) | Electromagnetic shield structure | |
| CN107732468B (en) | Antenna and terminal | |
| JP6852990B2 (en) | Automatic door | |
| Wig et al. | Wideband Analysis of Imaging of Dielectric-Covered Curved Surfaces for Millimeter-Wave Security Scanning | |
| Yang et al. | An Orthogonal Bidirectional Antenna Radar Sensing System for Smart Toilets |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |