CN110134220A - A kind of device sleeps awakening method based on infrared sensor array - Google Patents
A kind of device sleeps awakening method based on infrared sensor array Download PDFInfo
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- CN110134220A CN110134220A CN201910427340.5A CN201910427340A CN110134220A CN 110134220 A CN110134220 A CN 110134220A CN 201910427340 A CN201910427340 A CN 201910427340A CN 110134220 A CN110134220 A CN 110134220A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000007958 sleep Effects 0.000 title claims abstract description 22
- 239000011159 matrix material Substances 0.000 claims abstract description 45
- 238000012544 monitoring process Methods 0.000 claims description 17
- 238000005070 sampling Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
- G06F1/3231—Monitoring the presence, absence or movement of users
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4418—Suspend and resume; Hibernate and awake
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2642—Domotique, domestic, home control, automation, smart house
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- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Automation & Control Theory (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The method that the device sleeps based on infrared sensor array that the invention discloses a kind of wake up, the variation of space temperature is monitored by infrared sensor array, two-dimension temperature matrix data is obtained by space real time temperature, the grid area that is projected according to human body in temperature matrices or quantity judge in space whether someone and people are at a distance from equipment, when notifying equipment to enter dormant state in the case where people leaves；And after in the case where someone and at a distance from people and equipment reaching certain threshold value, equipment wake-up is switched to working condition, the intelligentized control method of equipment is realized, reduces the waste of electric energy.
Description
Technical field
The present invention relates to Intelligent housing field, especially a kind of device sleeps based on infrared sensor array are waken up
Method.
Background technique
With the development of science and technology, intelligent household electrical appliances have become a kind of trend, the intelligence between household appliance and people how is realized
Energy interaction is one and primarily solves the problems, such as.In traditional solution, installation switch or key usually in household appliance
Realize the interaction of people and household electrical appliances, but this mode is more primary and seem not friendly enough, user generally requires to pass through study
The control method of household electrical appliances could be grasped.
In addition, controlling the problem of household electrical appliances often bring some energy consumptions by switch or key, for example user leaves and sets
After standby, equipment will not automatic stand-by, but persistently keep working condition, and the device service of this unmanned consumption often results in not
Necessary waste of energy.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of device sleeps wake-up side based on infrared sensor array
Method, the presence for identifying people by infrared sensor array and people are at a distance from equipment, Lai Shixian device sleeps and wake-up, thus real
The purpose of existing intelligent control of household electrical appliance.
Technical solution of the present invention specifically includes the following steps:
S1 carries out subregion to plane space by the angular field of view and specification of infrared sensor array；
S2 obtains space background temperature, and real-time monitoring plane space temperature by the multiple repairing weld of infrared sensor array
Degree；
S3 obtains two-dimension temperature matrix data by the plane space temperature information of real-time monitoring；
S4 judges to whether there is people in space by two-dimension temperature matrix data, and the view for passing through infrared sensor array
Angular region and specification calculate under different distance, area representated by each grid, then by evaluator body surface in temperature
The grid area that projects on matrix or quantity extrapolate the actual range of people and equipment；
S5 projects matrix grid amount threshold by set distance threshold value or human body, when human body is greater than at a distance from equipment
When grid quantity shared by threshold value or human body projection is greater than threshold value, equipment is waken up.
S6 when monitoring nobody in space by two-dimension temperature matrix data, notifies equipment after people leaves equipment
Into suspend mode.
Furtherly, the step S1 is specifically included: according to 32 × 32 dot matrix of specification of infrared sensor array and visual angle
Indoor plane space is divided into 32 × 32 matrix grids by 120 ° × 120 ° of range, each grid has a temperature number
Value represents the mean temperature of the grid plane.
Furtherly, the step S2 is specifically included: by the multiple sampling of infrared sensor array, obtaining plane space
Mean temperature as ambient temperature, be denoted as T0, the temperature range T of judgement body surface is set with this ambient temperature1-T2, and
Real-time monitoring plane space temperature Tn。
Furtherly, the step S3 is specifically included: the original two dimensional temperature data that will be obtained from infrared sensor array
Value is denoted as fisrt feature temperature 2-D data, each value of the array element subtracts ambient temperature T0, obtain second feature
Temperature two-dimensional array, and set a decision threshold TC, by the element and threshold value T in second feature temperature two-dimensional arrayCCompare,
Greater than TCWhole labels be to be less than or equal to TCWhole labels be thus obtain third feature temperature two-dimensional array, at this point,
Each of third feature temperature two-dimensional array element will correspond to a matrix grid, form one group of two-dimension temperature matrix function
According to.
Furtherly, the judgment threshold TCFor the temperature range minimum T for determining body surface1Subtract ambient temperature T0
Gained.
Furtherly, the step S4 is specifically included: when element is 1 in matrix data, then representing someone in this space
Presence, when there are the presence for just having corresponding grid projection human body when human body, on 32 × 32 temperature matrices in plane space.
When human body apart from infrared sensor array farther out when, the matrix grid quantity that human body is projected on two-dimension temperature matrix can compare
Few, when human body is close to infrared sensor array, the matrix grid quantity that human body is projected on two-dimension temperature matrix can increase,
Therefore, the grid area or quantity projected on temperature matrices according to human body, can judge distance of the people apart from equipment.
Furtherly, the specific algorithm of the distance between people and equipment is in the judgement space: being passed according to infrared array
120 ° × 120 ° of the angular field of view and specification 32 × 32 of sensor, the matrix total height projected away are D, representated by each lattice
Side length d and total height D relationship be D=32 × d, according to tangent functionIt is logical
It crosses calculating to derive, the relationship between side length d and the distance between people and equipment L representated by each lattice are as follows: d ≈
0.10825×L；Meanwhile the model of body surface area is established, which can adjust according to user demand, herein by human body surface
Product module type simplifies are as follows: and 1.6 meters of length, the similar rectangular block of one of 0.5 meter of width, therefore, simplified manikin surface area
Be 0.8 square metre, and project two-dimension temperature matrix in each lattice area s=d2=3 × L2/ 256, it is available, two
Tie up the relationship of the square number N and the distance between people and equipment L of human body projection in temperature matrices are as follows: N=0.8/s=0.8 ×
256/(3×L2)≈68.3/L2。
Furtherly, when being greater than threshold value at a distance from equipment when human body, start timing, and in this setting time threshold value, when
When time reaches time threshold set by user, equipment is waken up.
Furtherly, the human body allows tolerance 20% in the grid quantity that temperature matrices project.
Furtherly, the method that device sleeps wake up is realized by the hardware interface of infrared sensor array mould group,
Wake-up mode includes one of GPIO interruption, I2C or UART serial ports.
Compared with prior art, the beneficial effects of the present invention are: the present invention provides one kind to be based on infrared sensor array
Device sleeps wake up method, by infrared sensor array monitor space temperature variation, according to human body in temperature matrices
The grid area of projection or quantity judge in space whether someone and people are at a distance from equipment, when leading in the case where people leaves
Know that equipment enters dormant state；And after in the case where someone and at a distance from people and equipment reaching certain threshold value, equipment is waken up
It is switched to working condition, realizes the intelligentized control method of equipment, reduces the waste of electric energy.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow chart of device sleeps awakening method of the invention；
Fig. 2 be human body of the embodiment of the present invention apart from equipment farther out when human body grid figure is projected on temperature matrices；
Fig. 3 be human body of the embodiment of the present invention close to equipment when human body grid figure is projected on temperature matrices.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one:
A method of device sleeps based on infrared sensor array wake up, refering to shown in attached drawing 1, including following step
It is rapid:
S1 carries out subregion to plane space by the angular field of view and specification of infrared sensor array；
S2 obtains space background temperature, and real-time monitoring plane space temperature by the multiple repairing weld of infrared sensor array
Degree；
S3 obtains two-dimension temperature matrix data by the plane space temperature information of real-time monitoring；
S4 judges to whether there is people in space by two-dimension temperature matrix data, and the view for passing through infrared sensor array
Angular region and specification calculate under different distance, area representated by each grid, then by evaluator body surface in temperature
The grid area that projects on matrix or quantity extrapolate the actual range of people and equipment；
S5 projects matrix grid amount threshold by set distance threshold value or human body, when human body is greater than at a distance from equipment
When grid quantity shared by threshold value or human body projection is greater than threshold value, equipment is waken up.
S6 when monitoring nobody in space by two-dimension temperature matrix data, notifies equipment after people leaves equipment
Into suspend mode.
In the present embodiment, the step S1 is specifically included: according to 32 × 32 dot matrix of specification of infrared sensor array and
Indoor plane space is divided into 32 × 32 matrix grids by 120 ° × 120 ° of angular field of view, each grid has a temperature
Degree value represents the mean temperature of the grid plane.
Furtherly, the step S2 is specifically included: by the multiple sampling of infrared sensor array, obtaining plane space
Mean temperature as ambient temperature, be denoted as T0, the temperature range T of judgement body surface is set with this ambient temperature1-T2, and
Real-time monitoring plane space temperature Tn.Because Various Seasonal environment temperature is different, for example winter is cold, and environment temperature is low,
When ambient temperature is 10 DEG C, monitoring human body table temperature range may be set to 18 DEG C~32 DEG C；Summer environment temperature is high, works as background
When temperature is 25 DEG C, monitoring human body table temperature range may be set to 28 DEG C~37 DEG C.
Furtherly, the step S3 is specifically included: the original two dimensional temperature data that will be obtained from infrared sensor array
Value is denoted as fisrt feature temperature 2-D data, each value of the array element subtracts ambient temperature T0, obtain second feature
Temperature two-dimensional array, and set a decision threshold TC, by the element and threshold value T in second feature temperature two-dimensional arrayCCompare,
Greater than TCWhole labels be to be less than or equal to TCWhole labels be thus obtain third feature temperature two-dimensional array, at this point,
Each of third feature temperature two-dimensional array element will correspond to a matrix grid, form one group of two-dimension temperature matrix function
According to.
Furtherly, the judgment threshold TCFor the temperature range minimum T for determining body surface1Subtract ambient temperature T0
Gained, when ambient temperature is 10 DEG C, monitoring human body table temperature range is set as 18 DEG C -32 DEG C, judges temperature threshold TCIt is then 8
℃；When ambient temperature is 25 DEG C, monitoring human body table temperature range is set as 28 DEG C -37 DEG C, judges temperature threshold TCIt is then 3
℃。
Furtherly, the step S4 is specifically included: when element is 1 in matrix data, then representing someone in this space
Presence, when there are the presence for just having corresponding grid projection human body when human body, on 32 × 32 temperature matrices in plane space.
Refering to shown in attached drawing 2, when human body apart from infrared sensor array farther out when, human body is thrown on two-dimension temperature matrix
The matrix grid quantity penetrated can be fewer.
Refering to shown in attached drawing 3, when human body is close to infrared sensor array, what human body was projected on two-dimension temperature matrix
Matrix grid quantity can increase, therefore, the grid area or quantity projected on temperature matrices according to human body, can judge people away from
With a distance from equipment.
Furtherly, the specific algorithm of the distance between people and equipment is in the judgement space: being passed according to infrared array
120 ° × 120 ° of the angular field of view and specification 32 × 32 of sensor, the matrix total height projected away are D, representated by each lattice
Side length d and total height D relationship be D=32 × d, according to tangent functionIt is logical
It crosses calculating to derive, the relationship between side length d and the distance between people and equipment L representated by each lattice are as follows: d ≈
0.10825×L；Meanwhile the model of body surface area is established, which can adjust according to user demand, herein by human body surface
Product module type simplifies are as follows: and 1.6 meters of length, the similar rectangular block of one of 0.5 meter of width, therefore, simplified manikin surface area
Be 0.8 square metre, and project two-dimension temperature matrix in each lattice area s=d2=3 × L2/ 256, it is available, two
Tie up the relationship of the square number N and the distance between people and equipment L of human body projection in temperature matrices are as follows: N=0.8/s=0.8 ×
256/(3×L2)≈68.3/L2。
In the present embodiment, a dormancy awakening distance threshold is set as 1 meter according to the actual conditions of equipment, then human body
Projecting matrix grid amount threshold is 68, continuous when monitoring one from two-dimension temperature matrix acquired in infrared sensor array
Similar rectangular block and shared space size when being greater than 68 lattices, start timing, and in this setting time threshold value (such as 3
Second), if the duration reaches 3 seconds, which does not disappear, then it is assumed that someone is located in front of equipment, then calls out equipment
It wakes up.
Furtherly, the human body allows tolerance 20% in the grid quantity that temperature matrices project.
Furtherly, the method that device sleeps wake up is realized by the hardware interface of infrared sensor array mould group,
Wake-up mode includes one of GPIO interruption, I2C or UART serial ports.
It is noted that the device sleeps awakening method of the invention based on infrared sensor array be suitable for air-conditioning,
The intelligent electric appliances such as television set, computer, printer realize the humanized intelligentized control method of electric appliance, reduce the waste of electric energy.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (9)
1. a kind of device sleeps awakening method based on infrared sensor array, which comprises the following steps:
S1 carries out subregion to plane space by the angular field of view and specification of infrared sensor array；
S2 obtains space background temperature, and real-time monitoring plane space temperature by the multiple repairing weld of infrared sensor array；
S3 obtains two-dimension temperature matrix data by the plane space temperature information of real-time monitoring；
S4 is judged with the presence or absence of people in space by two-dimension temperature matrix data, and passes through the visual angle model of infrared sensor array
It encloses and specification, calculates under different distance, area representated by each grid, then by evaluator body surface in temperature matrices
The grid area of upper projection or quantity extrapolate the actual range of people and equipment；
S5 projects matrix grid amount threshold by set distance threshold value or human body, when human body is greater than threshold value at a distance from equipment,
Or human body projection shared grid quantity wakes up equipment when being greater than threshold value；
S6, after people leaves equipment, i.e., when monitoring nobody in space by two-dimension temperature matrix data, notice equipment enters
Suspend mode.
2. a kind of device sleeps awakening method based on infrared sensor array according to claim 1, which is characterized in that
The step S1 is specifically included: according to 120 ° × 120 ° of 32 × 32 dot matrix of specification of infrared sensor array and angular field of view by room
Inner plane space is divided into 32 × 32 matrix grids, each grid has a temperature value to represent the grid plane
Mean temperature.
3. a kind of device sleeps awakening method based on infrared sensor array according to claim 1, which is characterized in that
The step S2 is specifically included: by the multiple sampling of infrared sensor array, obtaining the mean temperature of plane space as back
Scape temperature, is denoted as T0, the temperature range T of judgement body surface is set with this ambient temperature1-T2, and real-time monitoring plane space
Temperature Tn。
4. a kind of device sleeps awakening method based on infrared sensor array according to claim 1, which is characterized in that
The step S3 is specifically included: the original two dimensional temperature data value obtained from infrared sensor array is denoted as fisrt feature temperature
Each value of 2-D data, the array element subtracts ambient temperature T0, second feature temperature two-dimensional array is obtained, and set
One decision threshold TC, by the element and threshold value T in second feature temperature two-dimensional arrayCCompare, is greater than TCWhole labels be,
Less than or equal to TCWhole labels be thus to obtain third feature temperature two-dimensional array, at this point, third feature temperature two-dimemsional number
Each of group element will correspond to a matrix grid, form one group of two-dimension temperature matrix data.
5. a kind of device sleeps awakening method based on infrared sensor array according to claim 4, which is characterized in that
The judgment threshold TCFor the temperature range minimum T for determining body surface1Subtract ambient temperature T0Gained.
6. a kind of device sleeps awakening method based on infrared sensor array according to claim 2, which is characterized in that
The step S4 is specifically included: when element is 1 in matrix data, then being represented the presence of someone in this space, is worked as plane space
Just there is the presence of corresponding grid projection human body when inside there is human body, on 32 × 32 temperature matrices, then according to human body in temperature
The grid area projected on matrix or quantity are spent to calculate people at a distance from equipment.
7. a kind of device sleeps awakening method based on infrared sensor array according to claim 1, which is characterized in that
The step S5 further include: when human body is greater than threshold value at a distance from equipment, start timing, and in this setting time threshold value, when
When time reaches time threshold set by user, equipment is waken up.
8. a kind of device sleeps awakening method based on infrared sensor array according to claim 1, which is characterized in that
Human body described in the step S5 allows tolerance 20% in the grid quantity that temperature matrices project.
9. a kind of device sleeps awakening method according to claim 1, it is characterised in that: device sleeps wake up method be
It is realized by the hardware interface of infrared sensor array mould group, wake-up mode includes that GPIO is interrupted, in I2C or UART serial ports
It is a kind of.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111124511A (en) * | 2019-12-09 | 2020-05-08 | 浙江省北大信息技术高等研究院 | Wake-up chip and wake-up system |
| CN113101388A (en) * | 2021-05-11 | 2021-07-13 | 成都新澳冠医疗器械有限公司 | Ultraviolet lamp sterilization device and control method thereof |
| CN113485145A (en) * | 2021-07-30 | 2021-10-08 | 青岛海尔空调器有限总公司 | Method and device for identifying human body position, household appliance and readable storage medium |
| CN113495493A (en) * | 2021-07-30 | 2021-10-12 | 青岛海尔空调器有限总公司 | Method and device for recognizing human body height, household appliance and readable storage medium |
| CN113639430A (en) * | 2021-07-30 | 2021-11-12 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and readable storage medium |
| CN113639434A (en) * | 2021-07-30 | 2021-11-12 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and readable storage medium |
| CN113686447A (en) * | 2021-07-30 | 2021-11-23 | 青岛海尔空调器有限总公司 | Method and device for human body recognition, electronic equipment and readable storage medium |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111124511A (en) * | 2019-12-09 | 2020-05-08 | 浙江省北大信息技术高等研究院 | Wake-up chip and wake-up system |
| CN113101388A (en) * | 2021-05-11 | 2021-07-13 | 成都新澳冠医疗器械有限公司 | Ultraviolet lamp sterilization device and control method thereof |
| CN113485145A (en) * | 2021-07-30 | 2021-10-08 | 青岛海尔空调器有限总公司 | Method and device for identifying human body position, household appliance and readable storage medium |
| CN113495493A (en) * | 2021-07-30 | 2021-10-12 | 青岛海尔空调器有限总公司 | Method and device for recognizing human body height, household appliance and readable storage medium |
| CN113639430A (en) * | 2021-07-30 | 2021-11-12 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and readable storage medium |
| CN113639434A (en) * | 2021-07-30 | 2021-11-12 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and readable storage medium |
| CN113686447A (en) * | 2021-07-30 | 2021-11-23 | 青岛海尔空调器有限总公司 | Method and device for human body recognition, electronic equipment and readable storage medium |
| CN113639434B (en) * | 2021-07-30 | 2023-01-13 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and readable storage medium |
| CN113495493B (en) * | 2021-07-30 | 2024-07-16 | 青岛海尔空调器有限总公司 | Method and device for identifying height of human body, household appliance and readable storage medium |
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