CN206132224U - Temperature detect head and temperature detect equipment - Google Patents
Temperature detect head and temperature detect equipment Download PDFInfo
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- CN206132224U CN206132224U CN201621093474.6U CN201621093474U CN206132224U CN 206132224 U CN206132224 U CN 206132224U CN 201621093474 U CN201621093474 U CN 201621093474U CN 206132224 U CN206132224 U CN 206132224U
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Abstract
The utility model discloses a temperature detect head, temperature detect equipment and temperature detect method. In the embodiment, the temperature detect head can include: millimeter wave radiometer, millimeter wave lens system for assemble the incident millimeter wave, the reference body for the radiation is referred to the millimeter wave or is not in fact radiated the millimeter wave, and millimeter wave route auto -change over device for be couple to millimeter wave radiometer so that millimeter wave radiometer can survey the incident millimeter wave with millimeter wave lens system, perhaps be couple to millimeter wave radiometer with the reference body so that millimeter wave radiometer can survey the reference body. According to this disclosed embodiment, can utilize the millimeter wave that the object radiated out to measuring object's temperature is come to non -contact's mode.
Description
Technical field
The utility model is related to temperature sensing, relates more specifically to a kind of temperature sensing head based on millimeter wave and temperature is visited
Measurement equipment.
Background technology
In recent years, with the development of international exchange cooperation, international passenger's contact is frequent all the more.This is bringing the same of chance
When also bring challenges to national public safety, ecological environment.It is often accompanied by generating heat sign (such as because human hazard's property infects epidemic disease
SARS, H5N1, H1N1 etc.), the arriving and departing passengers by rapid screening detecting with heating sign are important to cut off the infection sources
One of measure.It is to carry out body temperature one by one to passenger by Handheld temperature rifle at this stage solution to be commonly used on inspection and quarantine port
Detection carries out thermal imagery scanning to all passengers in visual field by infrared thermography, but two kinds of solutions are not all roses, deposit
In respective shortcoming.
Handheld temperature rifle mainly has the disadvantage that.First, need when portable equipment works near arriving and departing passengers, repeat
Property work easily make port person works uninteresting in the case of high flux, anxious state of mind is big, unavoidable error.And, hand-held sets
It is standby similar to pistol, often result in detected passenger and excited or all kinds of ill-matched situations appearance occur.Additionally, equipment can only
Point-to-point detection, checks less efficient, it is impossible to meet under each inspection and quarantine port high flux personnel circulation instantly to fast monitored
Examination and the needs for speeding passage through customs.
The major defect of infrared thermography is that measure error is big.Thermal imaging system is by lens focal plane infrared sensor
Receiving signal Jing computer software processings becomes special infrared image, and the mean temperature of a certain scope is given after treatment.This
It is to use as monitoring instrument rather than thermometric instruments to plant thermal imaging system, thus while thermal imaging system is to temperature change in detection range
It is very sensitive, but can not directly export the corresponding accurate temperature value of each point.Therefore, in body temperature monitoring application, measurement
Resultant error is larger, and the quick and precisely examination of passenger's body temperature and inspection and quarantine port customs clearance efficiency will be had a negative impact, and then
Have influence on the image of border inspection and quarantine office and the public credibility of law enforcement.
Accordingly, it would be desirable to a set of reliable solution is carried out ancillary staff and quickly checked, can be effectively prevented from
The diffusion of external epidemic situation spreads to China, and carries in carry-on articles high quarantine risk species when preventing passenger from entering a country secretly.
Utility model content
In view of the above problems, the purpose of the disclosure is at least in part to provide a kind of temperature sensing head based on millimeter wave
With temperature sensing equipment, it is capable of the temperature of quickly and accurately detected object such as human body.
According to an aspect of this disclosure, there is provided a kind of temperature sensing head, including：Millimeter wave radiometer；Millimeter wave is saturating
Mirror system, for assembling incident millimetre-wave；Reference body, for radiation with reference to millimeter wave or substantial non-radiating millimeter wave；With
And millimeter wave path switching device, for millimeter wave lens combination to be couple to into millimeter wave radiometer so as to millimeter wave radiometer energy
Incident millimetre-wave is enough detected, or reference body is couple to into millimeter wave radiometer so that millimeter wave radiometer can detect reference
Body.
In accordance with an embodiment of the present disclosure, millimeter wave path switching device can periodically by millimeter wave lens combination and
Reference body radiation is alternately couple on millimeter wave radiometer.
For example, millimeter wave path switching device can include rotating disk, and at least one region of rotating disk measurement can be provided with
Window, and at least can be provided with the reference body in another region.The temperature sensing head can also include motor, turn for rotating
Disk.The position of rotating disk can be configured so that measurement window and reference body are alternately towards millimeter wave radiometer in rotation process, wherein
The incident millimetre-wave that measurement window transparent millimeterwave lens combination is assembled.In one example, diametrically side can be provided with rotating disk
To two opposed measurement windows.
And for example, millimeter wave path switching device can include shutter, and the reference body can be on the shutter.
The temperature sensing head can also include motor, for moving back and forth shutter so that shutter is blocking millimeter wave lens combination
Between millimeter wave radiometer the state of millimeter wave path and be moved away between the state of this millimeter of wave path switch, wherein working as place
When the state of this millimeter of wave path is blocked, the reference body on shutter is towards millimeter wave radiometer.
Reference body can be the millimeter-wave radiation material layer coated on rotating disk or shutter.The millimeter-wave radiation of reference body
Intensity can have known temperature characterisitic, or substantially independent of temperature variations.
Millimeter wave lens combination can include antenna assembly.
According to another aspect of the present disclosure, a kind of temperature sensing equipment is additionally provided, including：Said temperature detecting head；With
And data processing equipment, for based on the detection that millimeter-wave radiation timing millimeter wave radiometer is couple to when millimeter wave lens combination
As a result and when reference body is couple to the result of detection of millimeter-wave radiation timing millimeter wave radiometer, it is determined that giving off incident millimeter
The temperature of the object of ripple.
The temperature sensing equipment can also include：Temperature sensor, for the temperature of reference body in sensing temperature detecting head,
Wherein, data processing equipment is also based on sensed temperature, determines the temperature of object.
The temperature sensing equipment can also include：Range sensor, for detection give off incident millimetre-wave to image distance
The distance of temperature sensing equipment, wherein, data processing equipment is also based on detected distance, determines the temperature of object.
In accordance with an embodiment of the present disclosure, can be based on millimeter wave with the temperature of contactless mode detected object such as human body.
Millimeter wave (for example, wavelength is in the range of about 1-10mm) wave band be located at it is infrared and microwave between, with infrared with microwave feature.
Millimeter wave meets the circulation way of geometric optics, there is transmission, reflection and the performance for reflecting, unlike infrared ray is easily by meteorological and surrounding
The impact of environmental factor.Millimeter wave has certain penetrability, can penetrate that such as air, smog and clothing be light, thin matter object.Separately
Outward, millimeter wave does not possess radioactivity, to human body fanout free region etc..Based on the through characteristic of millimeter wave, people can be non-contactly measured
The body temperature of body different parts, it is high with the degree of accuracy, the advantages of being not easily affected by environmental factors.
Description of the drawings
By referring to the drawings to the description of the embodiment of the present disclosure, the above-mentioned and other purposes of the disclosure, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the schematic block diagram of the temperature sensing head according to the embodiment of the present disclosure；
Fig. 2 shows the schematic diagram of the millimeter wave path switching device according to the embodiment of the present disclosure, wherein (a) shows
The top view of millimeter wave path switching device, (b) shows millimeter wave path switching device in assembling schematic diagram；
Fig. 3 shows the schematic diagram of the millimeter wave path switching device according to another embodiment of the disclosure；
Fig. 4 shows the schematic diagram of the millimeter wave path switching device according to another embodiment of the disclosure, wherein (a) shows
The state of millimeter wave radiometer is gone out to be directed to incident millimetre-wave, (b) has shown and will be directed to a millimeter amplitude with reference to millimeter wave
Penetrate the state of meter；
Fig. 5 shows the schematic block diagram of the temperature sensing equipment according to the embodiment of the present disclosure；
Fig. 6 shows the figure of the example arrangement of the temperature sensing equipment according to the embodiment of the present disclosure；
Fig. 7 shows the flow chart of the temperature detection method according to the embodiment of the present disclosure.
Through accompanying drawing, similar reference represents similar part.
Specific embodiment
Hereinafter, will be described with reference to the accompanying drawings embodiment of the disclosure.However, it should be understood that these descriptions are simply exemplary
, and it is not intended to limit the scope of the present disclosure.Additionally, in the following description, the description to known features and technology is eliminated, with
Avoid unnecessarily obscuring the concept of the disclosure.
Term as used herein is not intended to limit the disclosure just for the sake of description specific embodiment.Used here as
Word " ", " one (kind) " and " being somebody's turn to do " etc. should also include " multiple ", the meaning of " various ", unless context clearly refers in addition
Go out.Additionally, term " including " as used herein, "comprising" etc. indicate the presence of the feature, step, operation and/or part,
But it is not excluded that there are or add one or more other features, step, operation or parts.
What all terms (including technology and scientific terminology) as used herein were generally understood with those skilled in the art
Implication, unless otherwise defined.It should be noted that term used herein should be interpreted that with consistent with the context of this specification
Implication, and should not be explained with idealization or excessively mechanical mode.
Shown in the drawings of some block diagrams and/or flow chart.It should be understood that block diagram and/or some sides in flow chart
Frame or its combination can be realized by computer program instructions.These computer program instructions can be supplied to all-purpose computer,
The processor of special-purpose computer or other programmable data processing units, so as to these instructions can be with when by the computing device
The device of illustrated function/operation in creating for realizing these block diagrams and/or flow chart.
Therefore, the technology of the disclosure can be realized in the form of hardware and/or software (including firmware, microcode etc.).Separately
Outward, the technology of the disclosure can take the form of the computer program on the computer-readable medium of the instruction that is stored with, should
Computer program is available for instruction execution system use or combined command execution system to use.In the context of the disclosure
In, computer-readable medium can be the arbitrary medium that can include, store, transmit, propagate or transmit instruction.For example, calculate
Machine computer-readable recording medium can include but is not limited to electricity, magnetic, optical, electromagnetic, infrared or semiconductor system, device, device or propagation medium.
The specific example of computer-readable medium includes：Magnetic memory apparatus, such as tape or hard disk (HDD)；Light storage device, such as CD
(CD-ROM)；Memory, such as random access memory (RAM) or flash memory；And/or wire/wireless communication link.
Fig. 1 shows the schematic block diagram of the temperature sensing head according to the embodiment of the present disclosure.
As shown in figure 1, can include that millimeter wave radiometer 101, millimeter wave is saturating according to the temperature sensing head 100 of the embodiment
Mirror system 103, reference body 105 and millimeter wave path switching device 107.
Millimeter wave radiometer 101 can detect millimeter wave, for example its radiation intensity.According to embodiment, millimeter wave radiometer
101 can be converted into d. c. voltage signal or low frequency signal the radiation of the millimere-wave band being incident on its test surface, this signal
The information (such as cycle, amplitude, phase place) of carrying is with the intensity of millimeter wave radiation incided on its test surface into certain relation.
Millimeter wave lens combination 103 can assemble the millimeter from external incident (for example, from object to be detected such as human body)
Ripple.In the case where body temperature is detected, because human body sends the randomness of millimeter wave, and intensity is faint, needs such milli
Metric wave lens combination 103 is converged the small-signal in space.Millimeter wave lens combination 103 for example can include being directed to
Millimeter wave that human body radiation goes out and the antenna assembly that specially designs.
Reference body 105 can be radiated and refer to millimeter wave.Here, there is provided the reference body 105 is suppressing the mistake of radiometer 101
Difference, such as temperature drift etc..The intensity of millimeter wave radiation of reference body 105 can have known temperature characterisitic, or substantially
It is independent of temperature variations.Alternatively, the intensity of millimeter wave radiation of reference body 105 can be very low, or substantially non-radiating
Millimeter wave.Error based on reference body further detailed below suppresses.
Millimeter wave lens combination 103 and reference body 105 can be respectively coupled to millimeter by millimeter wave path switching device 107
Wave radiation meter 101.Because millimeter wave meets the circulation way of geometric optics, therefore the travel path of millimeter wave can be referred to as
" light path ".Here, so-called " coupling ", refers to that light path is coupled.That is, when millimeter wave path switching device 107 is by millimeter wave lens
When system 103 is couple to millimeter wave radiometer 101, millimeter wave lens combination 103 and millimeter wave radiometer 101 by light path or
Say millimeter wave travel path and connect, so as to the incident millimetre-wave that millimeter wave lens combination 103 is assembled can incide millimeter wave
On radiometer 101, specifically, incide on its test surface.On the other hand, when millimeter wave path switching device 107 is by reference body
105 when being respectively coupled to millimeter wave radiometer 101, and reference body 105 and millimeter wave radiometer 101 are by light path millimeter wave in other words
Travel path and connect, so as to reference body 105 radiation reference millimeter wave (zero can be essentially) millimeter wave can be incided
On radiometer 101, specifically, incide on its test surface.
It is used to for two-way light path to select an irradiation to the device of specific direction suitable for this in optical system, simply needs root
According to the suitably modified associated components of the characteristic of millimeter wave characteristic (for example, select millimeter wave is had appropriate reflectivity, transmissivity,
The material of refractive index manufacturing associated components, to realize the functions such as speculum, prism, lens).Hereinafter, further will retouch in detail
State the configuration of millimeter wave path switching device 107.
Because the light path of millimeter wave path switching device 107 switches, millimeter wave radiometer 101 can separately detect object
(incident millimetre-wave that in other words, it is launched and assembles via lens) and reference body (in other words, the reference millimeter wave of its transmitting,
If present).Based on millimeter wave radiometer 101 to the difference between incident millimetre-wave and the result of detection of reference body, can
To determine the temperature of the object such as human body for giving off incident millimetre-wave.In an advantageous example, millimeter wave path switching device 107
Can periodically by millimeter wave lens combination 103 and reference body 105, alternately light path be couple on millimeter wave radiometer 101.
Fig. 2 shows the schematic diagram of the millimeter wave path switching device according to the embodiment of the present disclosure, wherein (a) shows
The top view of millimeter wave path switching device, (b) shows millimeter wave path switching device in assembling schematic diagram.
As shown in Fig. 2 (a), the form of rotating disk is embodied as according to the millimeter wave path switching device 207 of the embodiment, including
Discoid matrix 2071.Matrix 2071 can stop millimeter wave, and its material can be metal, and such as thickness is for about 3mm thick
Aluminium sheet, or thickness is for about 304 corrosion resistant plates of 2mm.On at least one region of matrix 2071, measurement window can be provided with
2073.This measurement window 2073 can be the hole on matrix 2071, or the material of transparent millimeterwave can be housed to increase in hole
The mechanical strength of strong rotating disk 207.In this example, two measurement windows being diametrically opposed are provided with matrix 2071, and
The two measurement window shapes are substantially the same, and with regard to the center of circle virtual symmetry of matrix 2071.But, the disclosure is not limited to
This, can arrange more or less of measurement window, and measurement window is also not necessarily identical or symmetrically.
In addition, reference body 205 can be provided with least another region of matrix 2071.Reference body 205 for example can be with
It is the certain thickness millimeter-wave radiation material layer coated on the surface of matrix 2017, its material (for example, carbon fiber) can be with
The millimeter wave of radiation some strength, its radiation intensity can be relevant with temperature or can be with virtually constant.Alternatively, reference body
205 can be the material of substantially non-radiating millimeter wave or radiation intensity very low (negligible compared with practical service environment)
Such as metal.In this case, can be without the need for arranging reference in addition on matrix 2071 (if its non-radiating millimeter wave)
Body 205, matrix 2071 itself can serve as reference body.In this example, reference body 205 is arranged on matrix 2071 except measurement
In essentially all region outside window 2073.But, disclosure not limited to this.Reference body 205 can also be arranged on matrix
In finite region on 2071.
In this example, rotating disk 207 is shown as disk, but disclosure not limited to this.Rotating disk 207 can also be fabricated to
Other shapes.In addition, the shape of measurement window 2073 can also be different, such as circle etc..
As shown in Fig. 2 (b), rotating disk 207 heart can be assembled on the axle of motor 209 wherein, such that it is able to by motor 209
Driving rotating disk 207 is around its central rotation.Rotating disk 207 be inserted in millimeter wave lens combination (for example, with reference to 103 shown in Fig. 1) with
Between millimeter wave radiometer 201 so that when rotating disk 207 is rotated, measurement window 2073 can turn to millimeter wave lens combination with
On millimeter wave path between millimeter wave radiometer 201, under this state, millimeter wave lens combination and millimeter wave radiometer 201
Between light path optical axis in other words millimeter wave path axis (referring to the chain-dotted line in Fig. 2 (b)) can pass through measurement window 2073,
For example through the approximate centre of measurement window 2073.
So, when rotating disk 207 is rotated, measurement window 2073 and reference body 205 can replace towards millimeter wave radiometer
201.When measurement window 2073 turns to the position towards millimeter wave radiometer 201, can be by from millimeter wave lens combination
Millimeter wave is transmitted on millimeter wave radiometer 201.When measurement window 2073 leaves above-mentioned position, reference body 205 can be towards milli
Metric wave radiometer 201, so as to its reference millimeter wave for giving off can be incided on millimeter wave radiometer 201.With rotating disk 207
Rotation, radiometer 201 periodically alternately measurement incident millimetre-wave and can refer to millimeter wave.
Motor 209 can rotate rotating disk 207 with constant speed.Alternatively, can be right to be controlled by control system (not shown)
Motor 209 carries out speed governing.Motor 209 can directly drive rotating disk 207 to rotate, it is also possible to by transfer device such as gear, belt
Rotate Deng rotating disk 207 is driven.
Fig. 3 shows the schematic diagram of the millimeter wave path switching device according to another embodiment of the disclosure.
As described in Figure 3, the form of shutter is embodied as according to the millimeter wave path switching device 307 of the embodiment, the screening
Baffle plate can be arranged on the light path between millimeter wave lens combination and millimeter wave radiometer 301 in other words on millimeter wave path.Separately
Outward, shutter 307 can be moved back and forth by Motor drive, so as to block millimeter wave lens combination and millimeter wave radiometer
Between 301 the state of millimeter wave path and be moved away between the state of this millimeter of wave path switch.Shutter 307 can include energy
Enough stop the material of millimeter wave, and reference body (not shown) can be set on its surface towards the side of millimeter-wave radiation 301,
For example coat material layer in its surface.
When shutter 307 is moved on above-mentioned millimeter wave path, the incidence from millimeter wave lens combination can be blocked
Millimeter wave, it is to avoid it is incided on millimeter wave radiometer 301.Now, the reference body for arranging on shutter 307 can be towards millimeter
Wave radiation meter 301, so as to its reference radiation for giving off can be incided on the test surface of millimeter wave radiometer 301.
When shutter 307 is moved away from above-mentioned millimeter wave path, the incident millimetre-wave from millimeter wave lens combination can edge
The path is incided on millimeter wave radiometer 301, such that it is able to be detected by millimeter wave radiometer 301.
When shutter 307 is moved back and forth as mentioned above, radiometer 201 periodically can alternately measure incident millimetre-wave
With refer to millimeter wave.
Fig. 4 shows the schematic diagram of the millimeter wave path switching device according to another embodiment of the disclosure, wherein (a) shows
The state of millimeter wave radiometer is gone out to be directed to incident millimetre-wave, (b) has shown and will be directed to a millimeter amplitude with reference to millimeter wave
Penetrate the state of meter.
The form of millimeter wave reflecting plate, such as metal are embodied as according to the millimeter wave path switching device 407 of the embodiment
Plate, can incide the millimeter wave reflection on its reflecting surface.Reflecting plate 407 can pivot, such that it is able to reflect difference
Millimeter wave in incident direction.As shown in Fig. 4 (a), when the reflecting surface of reflecting plate 407 is towards entering from millimeter wave lens combination
When penetrating millimeter wave, it can reflex to incident millimetre-wave on the plane of incidence of millimeter wave radiometer 401.In addition, such as Fig. 4 (b) institutes
Show, when reflecting plate 407 around its axle rotate so as to reflecting surface towards reference body when, can will reflex to a millimeter amplitude with reference to millimeter wave
Penetrate on meter 401.This reflected light path configuration is to those skilled in the art well known, and here is not described in detail each portion
Position relationship between part.
Fig. 5 shows the schematic block diagram of the temperature sensing equipment according to the embodiment of the present disclosure.
As shown in figure 5, according to the temperature sensing equipment 500 of the embodiment detecting head can be included (for example, above in association with figure
The detecting head 100 of 1 description) and data processing equipment 511.
Detecting head can include millimeter wave radiometer 501 (for example, above-mentioned millimeter wave radiometer 101).As described above, millimeter
Wave radiation meter 501 can alternately detect incident millimetre-wave and reference body.The result of detection of millimeter wave radiometer 501 can be converted into
Electric signal, is processed with exporting to data processing equipment 511.
Data processing equipment 511 can include various calculating platforms, such as processor or microprocessor, and it can be by operation
Corresponding program processing data, with the result of detection based on millimeter wave radiometer 501, it is determined that giving off incident millimeter
The temperature of the object of ripple such as human body.
Certainly, data processing equipment 511 can be sent out the part in instructing to control detecting head.For example, data processing
Device 511 can control the motor (for example, with reference to the motor 209 shown in Fig. 2) in detecting head to realize the rotation of certain speed.
In addition, data processing equipment 511 can also control the power supply of each part in detecting head, so as to power on demand, so as to realize
Economize on electricity.It is of course also possible to arrange other control device to realize these control functions.
Fig. 6 shows the figure of the example arrangement of the temperature sensing equipment according to the embodiment of the present disclosure.
The temperature sensing equipment that the example is configured based on the millimeter wave path switching device shown in Fig. 2.Such as Fig. 6 institutes
Show, the temperature sensing equipment 600 can include millimeter wave radiometer 201, millimeter wave lens combination 603, reference body (referring to Fig. 2
In 205), millimeter wave path switching device 207 (rotating disk).The output of millimeter wave radiometer 201 may be coupled to data processing
Device (for example, with reference to the data processing equipment 511 shown in Fig. 5).
Millimeter wave lens combination 603 and millimeter wave radiometer 201 can be oppositely arranged, so as to millimeter wave lens combination 603
Incident millimetre-wave can be converged on the test surface of millimeter wave radiometer 201.In addition, as described above, rotating disk 207 may be inserted into
Between millimeter wave lens combination 603 and millimeter wave radiometer 201.When rotating disk 207 is rotated by motor 209, the He of measurement window 2073
Reference body 205 can replace towards millimeter wave radiometer 201, lead to so as to millimeter wave radiometer 201 can alternately detect transmission
Cross the reference millimeter wave (if any) that the incident millimetre-wave and reference body 205 of measurement window 2073 send.In addition, radiometer can
To be disposed proximate to rotating disk 207, to avoid the impact of spuious millimeter wave, particularly in the intensity of millimeter wave radiation of reference body 205
In the case of very low or substantial non-radiating millimeter wave.
In order to suppress, by the temperature drift of the such as millimeter wave radiometer 201 of error caused by variation of ambient temperature, can also to set
Put temperature sensor 621.Temperature sensor 621 can be with the temperature of reference body in sensing temperature detecting head.For example, temperature sensor
621 reference bodies that could be arranged to the setting on rotating disk 207.The spy that can be varied with temperature according to the radiation intensity of reference body
Property, the temperature sensed based on temperature sensor 621 combines millimeter-wave radiation determining the expected radiation intensity of reference body
The radiation intensity of the reference millimeter wave that meter 201 is detected, it may be determined that the temperature drift of millimeter wave radiometer.Thus it is possible to
The impact of the temperature drift is deducted from result of detection of the millimeter wave radiometer 201 to incident millimetre-wave.Certainly, if reference body
Intensity of millimeter wave radiation very low (that is, being essentially zero) or substantially independent of temperature variations, then can omit this
Temperature sensor 621.Now, the radiation intensity of reference body can be to determine, it is possible to be visited according to millimeter wave radiometer 201
The radiation intensity of the reference millimeter wave for measuring, determines the temperature drift of millimeter wave radiometer.Specifically, in the millimeter wave of reference body
Radiation intensity is very low or substantial non-radiating millimeter wave in the case of (that is, the intensity with reference to millimeter wave is zero), in reference
Dignity can be considered as temperature drift to the radiation intensity that radiometer during millimeter wave radiometer 201 201 is detected.In addition, in ginseng
Examine the intensity of millimeter wave radiation of body it is substantially independent of temperature variations in the case of, can be strong according to the self-radiation of reference body
The radiation intensity of reference millimeter wave that degree and millimeter wave radiometer 201 are detected is determining the temperature of millimeter wave radiometer
Drift.
In addition, in order to reduce the impact of the distance between object and temperature sensing equipment to result of detection, can also arrange
Range sensor 623.Range sensor 623 can be with the distance between detected object and temperature sensing equipment, such as supersonic sounding
Device, laser ranging system etc..More specifically, range sensor 623 can be with detected object and the day of millimeter wave lens combination 603
The distance between line.According to the distance that range sensor 623 is detected, the decay that can be produced because of distance with revise signal.
For example, after the impact of temperature drift is deducted in the result of detection from millimeter wave radiometer 201 to incident millimetre-wave, Ke Yikao
The distance (in other words, corresponding decay) that worry is detected, the result of detection of incident millimetre-wave is converted to and send out at object to be detected
The radiation intensity of the millimeter wave for going out.
Subsequently, data processing equipment can be strong according to the object to be detected radiation for being measured by experiment or Modeling Calculation is obtained
The relational model of degree and its temperature, draws the actual temperature of object to be detected.
Fig. 7 shows the flow chart of the temperature detection method according to the embodiment of the present disclosure.
As shown in fig. 7, can be included in operation 751 by millimeter wave according to the temperature detection method 700 of the embodiment
Radiometer carrys out detected object, for example, detects the incident millimetre-wave from object.For example, it is possible to use millimeter wave lens combination will
Incident millimetre-wave is converged on millimeter wave radiometer.In addition, the method 700 can be included in operation 753 being visited by millimeter wave
Survey device to detect reference body, for example, detect the reference millimeter wave from reference body.As described above, the intensity with reference to millimeter wave can
With with known temperature characterisitic, or substantially stationary (can be zero).The order of operation 751 and 753 is not limited.For example,
Radiometer alternately detection incident millimetre-wave and reference body can be made by millimeter wave path switching device as above.
Then, in operation 757, the result of detection that can be based in operation 751 and 753 determines the temperature of object.
For example, can be to the incident millimeter intensity of wave that detects and with reference to millimeter intensity of wave in operation 751 and 753 respectively
Carry out difference processing (subtracting each other), so as to remove incident millimeter intensity of wave in temperature drift.The incident millimetre-wave for obtaining it is relative
The radiation intensity that intensity can determine with the self-radiation intensity (can be zero) of reference body or according to temperature is added, it is determined that
The absolute intensity of incident millimetre-wave.
Or, first according to the intensity of the reference millimeter wave detected in operation 753 can therefrom deduct the intrinsic spoke of reference body
The radiation intensity penetrated intensity (can be zero) or determine according to temperature, carrys out temperature drift.Afterwards, can be from operation
Temperature drift is deducted in the incident millimeter intensity of wave detected in 751, the absolute intensity of incident millimetre-wave is obtained.
Afterwards, based on object radiation intensity to be detected and the relational model of its temperature, counted according to incident millimeter intensity of wave
Calculate the temperature of object.
In accordance with an embodiment of the present disclosure, the method can also include distance of the measurement away from object to be detected, and according to this away from
From correcting incident millimeter intensity of wave (compensation cause due to a distance from decay).
In accordance with an embodiment of the present disclosure, it is possible to use the Millimeter Wave Radiometric Characteristic of human body, measured with millimeter wave radiometer
The millimeter wave relative radiant intensity of human body, and then measure body temperature, it is possible to the personnel that screening may be sick.Using reference body
Radiation characteristic, error such as temperature drift of millimeter wave radiometer itself etc. can be eliminated, so as to improve system reliability.
Although being described by taking measurement body temperature as an example in the embodiment more than, disclosure not limited to this.This
Disclosed technology goes for other needs the occasion of measurement temperature.
Above embodiment of this disclosure is described.But, the purpose that these embodiments are merely to illustrate that, and
It is not intended to limit the scope of the present disclosure.Although respectively describing each embodiment more than, but it is not intended that each reality
Apply the measure in example and can not be advantageously combined and use.The scope of the present disclosure is limited by claims and its equivalent.Do not take off
From the scope of the present disclosure, those skilled in the art can make various alternatives and modifications, and these alternatives and modifications all should fall at this
Within scope of disclosure.
Claims (11)
1. a kind of temperature sensing head, it is characterised in that include：
Millimeter wave radiometer；
Millimeter wave lens combination, for assembling incident millimetre-wave；
Reference body, for radiation with reference to millimeter wave or substantial non-radiating millimeter wave；And
Millimeter wave path switching device, for millimeter wave lens combination to be couple to into millimeter wave radiometer so as to millimeter wave radiometer
Incident millimetre-wave can be detected, or reference body is couple to into millimeter wave radiometer so that millimeter wave radiometer can detect reference
Body.
2. temperature sensing head according to claim 1, it is characterised in that millimeter wave path switching device periodically will milli
Metric wave lens combination and reference body radiation are alternately couple on millimeter wave radiometer.
3. temperature sensing head according to claim 1 and 2, it is characterised in that millimeter wave path switching device includes rotating disk,
Measurement window is provided with least one region of rotating disk, and is at least provided with the reference body in another region,
Characterized in that, the temperature sensing head also includes motor, for rotating rotating disk, the position of its turntable is arranged to turning
, alternately towards millimeter wave radiometer, wherein measurement window transparent millimeterwave lens combination is assembled for measurement window and reference body during dynamic
Incident millimetre-wave.
4. temperature sensing head according to claim 3, it is characterised in that two for being diametrically opposed are provided with rotating disk
Individual measurement window.
5. temperature sensing head according to claim 1 and 2, it is characterised in that millimeter wave path switching device includes blocking
Plate, wherein the reference body is on the shutter,
Characterized in that, the temperature sensing head also includes motor, for moving back and forth shutter so that shutter is blocking millimeter
The state of millimeter wave path and being moved away between the state of this millimeter of wave path is cut between ripple lens combination and millimeter wave radiometer
Change, wherein when in the state for blocking this millimeter of wave path, the reference body on shutter is towards millimeter wave radiometer.
6. temperature sensing head according to claim 3, it is characterised in that reference body is the millimeter amplitude coated on rotating disk
Penetrate material layer.
7. temperature sensing head according to claim 5, it is characterised in that reference body is the millimeter wave coated on shutter
Radiative material layer.
8. temperature sensing head according to claim 1, it is characterised in that millimeter wave lens combination includes antenna assembly.
9. a kind of temperature sensing equipment, it is characterised in that include：
Temperature sensing head as any one of claim 1-8；And
Data processing equipment, for based on the spy that millimeter-wave radiation timing millimeter wave radiometer is couple to when millimeter wave lens combination
Result is surveyed and when reference body is couple to the result of detection of millimeter-wave radiation timing millimeter wave radiometer, it is determined that giving off incident milli
The temperature of the object of metric wave.
10. temperature sensing equipment according to claim 9, it is characterised in that also include：
Temperature sensor, for the temperature of reference body in sensing temperature detecting head,
Wherein, data processing equipment is also based on sensed temperature, determines the temperature of object.
The 11. temperature sensing equipment according to claim 9 or 10, it is characterised in that also include：
Range sensor, for the distance to image distance temperature sensing equipment that detection gives off incident millimetre-wave,
Wherein, data processing equipment is also based on detected distance, determines the temperature of object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621093474.6U CN206132224U (en) | 2016-09-29 | 2016-09-29 | Temperature detect head and temperature detect equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621093474.6U CN206132224U (en) | 2016-09-29 | 2016-09-29 | Temperature detect head and temperature detect equipment |
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| CN206132224U true CN206132224U (en) | 2017-04-26 |
Family
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| CN201621093474.6U Active CN206132224U (en) | 2016-09-29 | 2016-09-29 | Temperature detect head and temperature detect equipment |
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|---|---|
| CN (1) | CN206132224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021183301A1 (en) * | 2020-03-13 | 2021-09-16 | Symptomsense, Llc | Systems and methods for non-invasive virus symptom detection |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021183301A1 (en) * | 2020-03-13 | 2021-09-16 | Symptomsense, Llc | Systems and methods for non-invasive virus symptom detection |
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