CN107066988A - A kind of palm infrared body temperature measurement and identification system - Google Patents
A kind of palm infrared body temperature measurement and identification system Download PDFInfo
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- CN107066988A CN107066988A CN201710300824.4A CN201710300824A CN107066988A CN 107066988 A CN107066988 A CN 107066988A CN 201710300824 A CN201710300824 A CN 201710300824A CN 107066988 A CN107066988 A CN 107066988A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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Abstract
The invention discloses a kind of measurement of palm infrared body temperature and identification system, it is related to infrared body temperature measurement and graphical analysis identification software and hardware system technical field.Infrared measurement of temperature module and minisize pick-up head pass through USB interface access industrial computer, infrared measurement of temperature module includes infrared thermopile inductor and signal transacting integrated chip, professional software system obtains centre of the palm surface temperature by infrared thermopile inductor, palmprint image is obtained by minisize pick-up head and the distance of the palm of the hand and infrared thermopile inductor is calculated, and industrial computer is connected with display and power supply adaptor, display and power supply adaptor are respectively used to detect presentation and the system power supply of data and analysis result.It can be in the palm closely lifted to people while realizing the collection transmission of the infrared sensing and palm print image information of centre of the palm temperature, realize in kindergarten, school, or specific public critical point and place, efficient, quick and intelligent identification and measurement of bldy temperature to colony discrepancy personnel.
Description
Technical field：
The present invention relates to a kind of measurement of palm infrared body temperature and identification system, belong to infrared body temperature measurement and image point
Analyse identification software and hardware system technical field.
Background technology：
As the speed that the high speed development and science and technology of social economy fly is progressive, people's living standard is improved constantly, to people and thing
Intelligent Recognition and temperature survey demand and application scenarios it is more and more many, it is desirable to more and more high, what general characteristic was presented is high
Effect, quick, intelligentized colony continuously recognize the urgency with measurement.Especially for the youngster of kindergarten, school and other unit
Virgin, student and the daily identification of worker and measurement of bldy temperature, are modernized society's safety management and health examination normalization
Inexorable trend.But the identification system of current domestic and international market, still based on all kinds radio-frequency technique, it is required for configuration
Corresponding card and reading identifying device；The biological identification technologies such as fingerprint, iris and face need special optical recognition module or
Harsh use condition accuracy of identification limitation, it is difficult to the requirement of extensive, quick high discrimination is reached, to palmprint image and vein
Study of recognition experiment show, palmmprint has more complicated texture and more rich information than fingerprint, and the discrimination of palmmprint is even
Be much higher than the discrimination of fingerprint, emerging identification chip human body implanted prosthetics, by ethics, law restriction also not
Possess application conditions.Current measurement of bldy temperature instrument is still with contact mercurial thermometer or thermistor, electric capacity digital temperature
Master is calculated as, this metering system is present as precision is low, time of measuring length, uneasy congruent shortcomings；Infrared body temperature survey technology has
Have the advantages that efficient, quick, noncontact, it is easy to use, but have that cost is high, precision is difficult to ensure, many by external interference factor
The problem of.As people are to safe and healthy requirement more and more higher, either in kindergarten, school, hospital, or influenza, biography
Catch an illness the public critical point and place of particular time occurred frequently, be required for it is a kind of it is quick, efficiently, compared with precisely, low cost, small size, make
With facilitating identification and body temperature measuring device.The present invention is formally based on this objective, and research and development are a set of to meet this claimed apparatus system
System, infrared sensing and the palm print image information collection by the system simultaneously to palm centre of the palm temperature is sent to industrial computer, profit
Body temperature and identification identity information are obtained with research and development algorithm and software, and network high in the clouds and mobile intelligent terminal can be pushed to.
The content of the invention：
In view of the above-mentioned problems, knowing the technical problem to be solved in the present invention is to provide a kind of measurement of palm infrared body temperature and identity
Other system.
A kind of palm infrared body temperature measurement of the present invention and identification system, it comprising infrared measurement of temperature module 1, miniature take the photograph
As first 2, industrial computer 3, professional software system 4, display 5 and power supply adaptor 6, infrared measurement of temperature module 1 and minisize pick-up head 2
By USB interface access industrial computer 3, described infrared measurement of temperature module 1 includes infrared thermopile inductor 1-1 and signal transacting
Integrated chip 1-2, described industrial computer 3 is by central processing unit 3-1, computer main board 3-2, internal memory 3-3, flash memory disk 3-4 and WIFI
Module 3-5 is constituted, and the professional software system 4 obtains centre of the palm surface temperature by infrared thermopile inductor 1-1, by miniature
Camera 2 obtains palmprint image and calculates the distance of the palm of the hand and infrared thermopile inductor 1-1, is sent to the special of industrial computer 3
Industry software systems 4, the professional software system 4 is to carry out depth analysis to the centre of the palm surface temperature and palmprint image data of collection
Processing, draws accurate body temperature and identification result, and records presentation and be pushed to cloud platform and hand-held intelligent terminal, and
Industrial computer 3 is connected with display 5 and power supply adaptor 6, and the display 5 and power supply adaptor 6 are respectively used to detect data
And presentation and the system power supply of analysis result.
Preferably, described infrared measurement of temperature module 1 and minisize pick-up head 2 is fixed in supporting plate 9, system equipment surface
7 are arranged on the front portion of infrared measurement of temperature module 1 and minisize pick-up head 2, when using detected object raise one's hand open palm be placed on system
The surface of palm area 8 that equipment surface 7 is demarcated.
Preferably, described system equipment surface 7 is made up of transparent toughened glass.
Preferably, described infrared thermopile inductor 1-1 measurement palm of the hand surface temperatures, by Cubic Curve Fitting
The algorithm of high-precision relational model and compensated distance and Optimal Parameters obtains body temperature, with agility and convenience, without artificial
Participate in, and detected person's more accurately body temperature can be obtained.
Preferably, palmprint feature extraction is plural using double trees during described minisize pick-up head 2 obtains palmprint image
Wavelet transformation, the low frequency subband image obtained by multilayer decomposition is carried out to palmprint image, converts what is had using bi-input bi-output system
Approximate translation invariance, subgraph texture feature extraction value is decomposed by 6 set directions, calculates each each piece of point of subgraph
Amplitude sum, forms palm print characteristics vector, and palm print characteristics matching is used as similitude using the Euclidean distance of characteristic vector descriptor
Measurement, then find and compared with to be matched minimum range with given threshold value, determine point to be matched with apart from minimum point whether
For matching double points, stochastical sampling need to match the affine transformation matrix between key point, examine the deviation after the mapping of other characteristic points
Whether threshold value is less than, to further confirm that whether two palmmprints match.
Beneficial effects of the present invention：It can be in the palm closely lifted to people while realizing the infrared biography of centre of the palm temperature
Sense and the collection of palm print image information are transmitted, and synchronous driving is raised one's hand to industrial computer using the algorithm and software of research and development
Human temperature and its identity of identification, and result can be pushed to network high in the clouds and mobile intelligent terminal, realize in kindergarten, school,
Or specific public critical point and place, efficient, quick and intelligent identification and measurement of bldy temperature to colony discrepancy personnel, nothing
Need to by smart card, expensive equipments and it is artificial participate in, cost of implementation is low, high accuracy and big flow crowd it is continuous, stably, it is convenient
Formula identification and temperature check.
Brief description of the drawings：
For ease of explanation, the present invention is described in detail by following specific implementations and accompanying drawing.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is test mode structural representation of the invention.
Reference：Infrared measurement of temperature module 1, minisize pick-up head 2, industrial computer 3, professional software system 4, display 5, electricity
Source adapter 6.
Embodiment：
As shown in Figure 1-2, present embodiment uses following technical scheme：It comprising infrared measurement of temperature module 1, miniature take the photograph
As first 2, industrial computer 3, professional software system 4, display 5 and power supply adaptor 6, infrared measurement of temperature module 1 and minisize pick-up head 2
By USB interface access industrial computer 3, described infrared measurement of temperature module 1 includes infrared thermopile inductor 1-1 and signal transacting
Integrated chip 1-2, described industrial computer 3 is by central processing unit 3-1, computer main board 3-2, internal memory 3-3, flash memory disk 3-4 and WIFI
Module 3-5 is constituted, and the professional software system 4 obtains centre of the palm surface temperature by infrared thermopile inductor 1-1, by miniature
Camera 2 obtains palmprint image and calculates the distance of the palm of the hand and infrared thermopile inductor 1-1, is sent to the special of industrial computer 3
Industry software systems 4, the professional software system 4 is to carry out depth analysis to the centre of the palm surface temperature and palmprint image data of collection
Processing, draws accurate body temperature and identification result, and records presentation and be pushed to cloud platform and hand-held intelligent terminal, and
Industrial computer 3 is connected with display 5 and power supply adaptor 6, and the display 5 and power supply adaptor 6 are respectively used to detect data
And presentation and the system power supply of analysis result.
Preferably, described infrared measurement of temperature module 1 and minisize pick-up head 2 is fixed in supporting plate 9, system equipment surface
7 are arranged on the front portion of infrared measurement of temperature module 1 and minisize pick-up head 2, when using detected object raise one's hand open palm be placed on system
The surface of palm area 8 that equipment surface 7 is demarcated.
Preferably, described system equipment surface 7 is made up of transparent toughened glass.
Preferably, described infrared thermopile inductor 1-1 measurement palm of the hand surface temperatures, by Cubic Curve Fitting
The algorithm of high-precision relational model and compensated distance and Optimal Parameters obtains body temperature, with agility and convenience, without artificial
Participate in, and detected person's more accurately body temperature can be obtained.
Preferably, palmprint feature extraction is plural using double trees during described minisize pick-up head 2 obtains palmprint image
Wavelet transformation, the low frequency subband image obtained by multilayer decomposition is carried out to palmprint image, converts what is had using bi-input bi-output system
Approximate translation invariance, subgraph texture feature extraction value is decomposed by 6 set directions, calculates each each piece of point of subgraph
Amplitude sum, forms palm print characteristics vector, and palm print characteristics matching is used as similitude using the Euclidean distance of characteristic vector descriptor
Measurement, then find and compared with to be matched minimum range with given threshold value, determine point to be matched with apart from minimum point whether
For matching double points, stochastical sampling need to match the affine transformation matrix between key point, examine the deviation after the mapping of other characteristic points
Whether threshold value is less than, to further confirm that whether two palmmprints match.
The operation principle of present embodiment is：Detected object, which raises one's hand to open palm, to be placed on system equipment surface 7 and marks
The fixed surface of palm area 8, is stopped 2 seconds, and professional software system 4 was gathered at interval of 1 second driving minisize pick-up head 2 once to be schemed
Picture, binary conversion treatment is carried out to view data, is extracted principal component profile and is carried out morphological analysis, and makes whetheing there is detected palm
Correct judgement, no palm occur professional software system 4 do not start subsequent treatment work, be the palm then interface display of display 5
" analyzing and processing just a moment,please ", now detected person can put down hand, and system is identified to palmmprint and draws the people that raises one's hand
Identity, while driving infrared measurement of temperature module 1 to detect people centre of the palm surface temperature of raising one's hand, passes through the high-precision relation of Cubic Curve Fitting
Model obtains temperature data, and reports and presentation is raised one's hand people's name and body temperature, record and pushes testing result, next detectable
Next people's information of raising one's hand.
Embodiment：The present embodiment, with accurate its auxillary temperature of temperature measuring device manual measurement, is sensed to 60 people with infrared measurement of temperature
Device measures its palm of the hand surface temperature, and actual or simulation is tested under four kinds of environment temperatures of spring, summer, autumn and winter, with auxillary temperature
On the basis of, the auxillary temperature measured is 0.5 degree of classification by step-length from 35 degree to 41 degree, asks for being averaged in the range of each step-length
Value, while obtaining the average value of the corresponding palm of the hand surface temperature of the scope, respectively obtains surveyed auxillary temperature (body temperature) and the palm of the hand
Two groups of data of surface temperature (data that some 0.5 degree of step-length of increase is not measured are disregarded), with three free curves to two groups of numbers
According to being fitted, formula (1) is seen, try to achieve in the coefficient of curvilinear equation, the body temperature of structure and the relational model of centre of the palm surface temperature, formula
T is the centre of the palm surface temperature measured, and f (t) is the body temperature after fitting.Experiment shows the body temperature for having relational model to try to achieve and actual essence
The body temperature discrepancy of locating tab assembly is less than ± 0.2 DEG C, it is necessary to which explanation is, when environment temperature is relatively low, both hands to be needed when opening palm thermometric
It is appropriate to rub the centre of the palm with the hands heat close to normal shell temperature, to being seriously less than body surface normal temperature not pretest, body temperature result is not provided,
Require that the centre of the palm is placed on system equipment surface demarcation region during due to using, closely infrared measurement of temperature sensing head (being less than 1CM), nothing
Thermometric compensated distance, the error that it is produced when infrared temperature-test sensor property list prescribed distance is less than 10CM by thermometric object need to be carried out
It can be ignored, provided in the present embodiment and calculate palm and the method for the distance of infrared measurement of temperature module 1, when palmmprint master drawing is gathered
It is that the centre of the palm is placed on the demarcation region progress of system equipment surface, passes through the ratio for calculating collection palmprint image and corresponding master drawing in real time
The distance of tested palm and infrared measurement of temperature module 1 can be drawn, can be chosen whether by professional software default into trip temperature
Compensated distance.Compensated distance algorithm is shown in that x is the centre of the palm and temperature measuring head distance measured in formula (2), formula, and T is the body after compensated distance
Temperature.
F (t)=at3+bt2+ ct+d formulas (1)
T=af (t)2+ bf (t)+cxf (t)+dx+e formulas (2)
The processing of palmprint image data is made up of with identification two links：Train the palmprint image sample typing stage and
Test the palmprint image sample matches stage.Training sample typing, is pre-processed, then to the palmprint image training sample of collection
Feature extraction is carried out, the palm print characteristics of extraction are stored in property data base and remain to be matched with tested sample.Test specimens
The plate shop matching class stage is by with after the pretreatment of training sample identical, feature extraction, carrying out to the test sample of acquisition
With confirmation.The present embodiment is high flow capacity crowd and the relatively-stationary feature of position link condition for detected object, provides one
Plant efficient accurately palm print characteristics statement and match cognization algorithm：Palmprint image binary conversion treatment will be gathered, with scanning analysis
With geometric transformation algorithm, centre of the palm nucleus is quick and precisely partitioned into, the corresponding gray level image of palmmprint nucleus is gone
Make an uproar and normalized, palmprint feature extraction is shown in (formula 3) with two-dimentional bi-input bi-output system conversion, its actual situation portion constructed, profit
The approximate translation invariance having is converted with bi-input bi-output system, low frequency is selectively decomposed by 5 yardsticks, 6 angle directions
Band image zooming-out texture eigenvalue, calculates each subgraph average and standard deviation is shown in (formula 4) and (formula 5) respectively, builds palmmprint figure
As characteristic vector is shown in (formula 6), above formula that A is subgraph, M × N is subgraph size, and l, k are respectively yardstick and angle, fu、fδ
It is the average and standard deviation of palmprint image respectively.Palm print characteristics matching uses the distance metric of (formula 7) characteristic vector descriptor,
As similarity measurement matching primitives method, f in formulaPAnd fQRespectively it is detected altimetric image and ATL characteristics of image, m, n difference
Characteristic vector number and ATL characteristics of image number, σ (u), σ (δ) are respectively whole ATL characteristics of image standard deviation, w1,
W2 is weight coefficient, and d is the feature space distance that tested altimetric image and ATL image compare, distance value it is minimum for matching
Palmprint image.
F={ fu, fδ, μ1,1, δ1,1, μ1,2, δ1,2..., μ5,6, δ5,6(formula 6)
Certain people's palmprint image sample of primary school 690 is identified according to above formula and recognition methods, correct recognition rata is
99.3%, it is less than 1.2 seconds with the industrial computer identification maximum duration of phase configuration, 0.78 second average time, reaches functional need.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. a kind of palm infrared body temperature measurement and identification system, it is characterised in that：It includes infrared measurement of temperature module (1), micro-
Type camera (2), industrial computer (3), professional software system (4), display (5) and power supply adaptor (6), infrared measurement of temperature module
(1) and minisize pick-up head (2) is by USB interface access industrial computer (3), described infrared measurement of temperature module (1) includes infrared heat
Pile inductor (1-1) and signal transacting integrated chip (1-2), described industrial computer (3) is by central processing unit (3-1), electricity
Brain mainboard (3-2), internal memory (3-3), flash memory disk (3-4) and WIFI module (3-5) are constituted, and the professional software system (4) is by red
Outer thermoelectric pile inductor (1-1) obtains centre of the palm surface temperature, palmprint image is obtained by minisize pick-up head (2) and calculate the palm of the hand with
The distance of infrared thermopile inductor (1-1), is sent to the professional software system (4) of industrial computer (3), the professional software system
System (4) is to carry out depth analysis processing to the centre of the palm surface temperature and palmprint image data of collection, draws accurate body temperature and body
Part recognition result, and record presentation and be pushed to cloud platform and hand-held intelligent terminal, and industrial computer (3) and display (5)
With power supply adaptor (6) connection, the display (5) and power supply adaptor (6) are respectively used to detection data and analysis result
Present and system power supply.
2. according to a kind of palm infrared body temperature measurement described in claim 1 and identification system, it is characterised in that：Described
Infrared measurement of temperature module (1) and minisize pick-up head (2) are fixed in supporting plate (9), and system equipment surface (7) are arranged on infrared measurement of temperature
The front portion of module (1) and minisize pick-up head (2), when using detected object raise one's hand open palm be placed on system equipment surface (7)
Palm area (8) surface of demarcation.
3. according to a kind of palm infrared body temperature measurement described in claim 1 and identification system, it is characterised in that：Described
Infrared thermopile inductor (1-1) measures palm of the hand surface temperature, by the high-precision relational model and distance of Cubic Curve Fitting
Compensation and the algorithm of Optimal Parameters obtain body temperature, with agility and convenience, without artificial participation, and can obtain detected person
More accurately body temperature.
4. according to a kind of palm infrared body temperature measurement described in claim 1 and identification system, it is characterised in that：Described
Palmprint feature extraction is converted using bi-input bi-output system during minisize pick-up head (2) obtains palmprint image, and palmprint image is entered
Low frequency subband image obtained by the decomposition of row multilayer, the approximate translation invariance having is converted using bi-input bi-output system, by 6 sides
Subgraph texture feature extraction value is decomposed to selectivity, the amplitude sum of each each piece of point of subgraph is calculated, palm print characteristics are formed
Vector, palm print characteristics matching using characteristic vector descriptor Euclidean distance as similarity measurement, then find with it is to be matched
Point minimum range is compared with given threshold value, determines point to be matched with whether being matching double points apart from minimum point, stochastical sampling is needed
The affine transformation matrix between key point is matched, examines whether the deviation after the mapping of other characteristic points is less than threshold value, comes further
Confirm whether two palmmprints match.
5. according to a kind of palm infrared body temperature measurement described in claim 1 and identification system, it is characterised in that：Its work
It is as principle：Detected object raises one's hand to open palm area (8) surface that palm is placed on system equipment surface (7) demarcation, stops 2
Second, professional software system (4) carries out two at interval of 1 second driving minisize pick-up head (2) image of collection to view data
Value is handled, and is extracted principal component profile and is carried out morphological analysis, and makes the correct judgement for whetheing there is detected palm, and no palm goes out
Existing professional software system (4) does not start subsequent treatment work, is palm then display (5) interface display " at analysis
Just a moment,please for reason ", now detected person can put down hand, and palmmprint is identified system draws people's identity of raising one's hand, and drive simultaneously
Dynamic infrared measurement of temperature module (1) detects people centre of the palm surface temperature of raising one's hand, and is obtained by the high-precision relational model of Cubic Curve Fitting
Temperature data, and report and presentation is raised one's hand people's name and body temperature, record and pushes testing result, next can detect next lift
Hand people's information.
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