CN105739339A - Human body identification and locating method and system - Google Patents
Human body identification and locating method and system Download PDFInfo
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- CN105739339A CN105739339A CN201610156603.XA CN201610156603A CN105739339A CN 105739339 A CN105739339 A CN 105739339A CN 201610156603 A CN201610156603 A CN 201610156603A CN 105739339 A CN105739339 A CN 105739339A
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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
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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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Abstract
The invention discloses a human body identification and locating method and system. Temperature in a limited space is detected through temperature sensors and then analyzed, a human body is identified according to the situation that temperature of the human body (especially the head and facial part) is obviously higher than temperature of surrounding environment, and the position of the human body is judged according to the projection coordinates of heating points in the whole space. In particular, area temperature distribution is detected by using MEMS infrared array sensor devices to generate signal output so as to judge whether someone indoor can perform switching of household modes. Besides, the position of the indoor human body can be judged by further calculating the coordinates so that a corresponding interface can be manufactured further for an intelligent system. The human body identification and locating method and system is low in power consumption, low in cost, convenient to install and simple in software realization and can protect privacy of users.
Description
Technical field
The invention belongs to Smart Home field, be specifically related to the method and system of a kind of human bioequivalence and location.
Background technology
Smart Home market is very burning hot in recent years, and along with the development of Internet technology, Smart Home becomes and meets inevitable choice and the developing direction that intellectuality, green energy conservation, comfortable life are pursued by people.So-called intelligence is exactly man-machine interaction at all in fact, in this embodiment it is not even necessary to mutual, and directly platform robot makes various logic judgement rearward.
Safety-protection system is typically in intelligent domestic system all can occupy very big ratio.And the infrared detection sensor inside tradition safety-protection system, the object that can only identify motion is caused by the wavelength bandpass range of himself structure and light filtering window, it is mainly used for swarming into monitoring, for static human body then None-identified, application direction is comparatively narrow, and existing apparatus takies device resource greatly, relatively costly.And the development of sensor has been turned to digitized by traditional analog sensor, further integrate to facilitate and data processing function is provided.
Existing human bioequivalence is mostly based on photographic head in the market, realizes by shooting image, this scheme relative complex, and accuracy of identification is not high causes that recognition effect is not as, and privacy is also a very big problem.
How to judge whether specific region has people in conjunction with sensor, and the position of human body is the direction that following intelligent domestic system urgently develops, solve this problem and can make more user's needs that adapt to, and there is humanistic feature more should for for user's service.
Summary of the invention:
In order to overcome the defect of above-mentioned background technology, the present invention provides the method and system of a kind of human bioequivalence and location, by temperature sensor identification and the position of human body positioning region to be measured.
In order to solve the technical scheme adopted of the above-mentioned technical problem present invention it is:
A kind of method of human bioequivalence and location:
By temperature sensor, institute overlay area is detected, obtain the first temperature value matrix；
The temperature value of each element in the first temperature value matrix is compared with predetermined threshold value respectively, indicates the temperature value element higher than threshold value；
First temperature value matrix is corresponding with the coordinate of temperature sensor institute overlay area；
The coordinate position at the element place being labeled is human body position.
It is preferred that after obtaining the first temperature value matrix, use bilinear interpolation and matlab function that the first temperature value matrix is processed, obtain the second temperature value matrix；
Second temperature value matrix and predetermined threshold value are compared, indicates the temperature value element higher than threshold value.
Being completed by matrix two-dimensional method higher than the element of threshold value it is preferred that indicate temperature value, higher than the element of threshold value, temperature value is put 1, other elements set to 0；Or temperature value is set to 0 higher than the element of threshold value, other elements put 1.
It is preferred that threshold value can be inputted setting by user, or selected to determine between 13.5 DEG C-17.5 DEG C by user.
It is preferred that the first temperature value matrix is obtained by MEMS infrared sensor array.
The present invention also provides for the system of a kind of human bioequivalence and location, and including the temperature sensor being sequentially connected with, processor, processor includes:
Temperature value matrix acquisition module, for receiving the temperature value data that temperature sensor sends over, and forms the first temperature value matrix, using the first temperature value matrix as temperature value Output matrix to comparing sign module；
Relatively indicate module, for the temperature value of each element in temperature value matrix and threshold value being compared, indicate the temperature value element higher than threshold value；
Ratio projection module, for corresponding with the coordinate of temperature sensor institute overlay area by temperature value matrix；
Human body locating module, exports the coordinate position at the element place being labeled as the position of human body result identified.
Preferably, temperature value matrix acquisition module also includes precision improvement unit, for using bilinear interpolation and matlab function to carry out process and obtain the second temperature value matrix in the first temperature value matrix, and using the second temperature value matrix as temperature value Output matrix to comparing sign module.
It is preferred that compare sign module also include matrix two-dimensional unit, for temperature value is put 1 higher than the element of threshold value, other elements set to 0, or are set to 0 higher than the element of threshold value by temperature value, and other elements put 1.
It is preferred that also include the input equipment being connected to processor, for inputting or select threshold value for user, and threshold value is exported to comparing sign module.
It is preferred that temperature sensor is MEMS infrared sensor array.
The beneficial effects of the present invention is: a kind of method that it is an object of the invention to provide identification to indoor human body and location, traditional infrared detection sensor is substituted with temperature sensor, the object of motion can only be identified with the traditional infrared detection sensor solving exist in prior art, sensitivity is low, application direction is comparatively narrow, and the existing identification device problems such as to take device resource big, relatively costly.The temperature limited in space is detected by temperature sensor, then it is analyzed, temperature according to human body (especially Head And Face) can be significantly hotter than ambient temperature and realizes the identification of human body, judges the position of human body according to heat generating spot projection coordinate in whole space.Specifically, use MEMS infrared sensor array device detection region Temperature Distribution, generation signal exports, and then judge whether someone can carry out the switching of home mode in indoor, it is also possible to judged that the position of indoor human body makes corresponding interface to facilitate for further intellectualizing system further by coordinates computed.Power consumption of the present invention is little, cost is low, easy for installation, software realizes being easier to, and can well protect the privacy of user.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the embodiment of the present invention one；
Fig. 2 is the method flow diagram adding precision improvement step of the embodiment of the present invention one；
Fig. 3 is the first temperature value matrix image of the embodiment of the present invention one and embodiment two gained；
Fig. 4 is the second temperature value matrix image of the embodiment of the present invention one and embodiment two gained；
Fig. 5 is the system global structure schematic diagram of the embodiment of the present invention two；
Fig. 6 is the embodiment of the present invention two processor internal module structural representation；
Fig. 7 is the processor module structural representation that the embodiment of the present invention two adds after precision improvement unit；
Fig. 8 is the processor module structural representation that the embodiment of the present invention two adds after matrix two-dimensional unit；
Fig. 9 is the system global structure schematic diagram that the embodiment of the present invention two adds input equipment.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described further.
Embodiment one
A kind of method of human bioequivalence and location, as it is shown in figure 1, include:
Step 1, by temperature sensor, institute overlay area is detected, obtain the first temperature value matrix, as it is shown on figure 3, obtain the matrix of a 8*8 (64 pixel), in this matrix, each numerical value is temperature value, then pass through the temperature difference demonstrated in matrix, it is possible to obtaining a human body gabarit relatively clearly, infrared sensor array can carry out static detection；
Step 2, compares with predetermined threshold value respectively by the temperature value of each element in the first temperature value matrix, indicates the temperature value element higher than threshold value；Threshold temperature is the boundary value judging background and human body, as target temperature value is higher more than 1 DEG C than ambient temperature value, being then judged to human body, we can be set as 15.5 DEG C threshold value, other ambient interferences can be removed, thus can determine whether out that color deeper region heater is human body.
Step 3, the first temperature value matrix is corresponding in proportion with the coordinate of temperature sensor institute overlay area；By system operations, calculating people's relative position in a matrix, then the size in covered for sensor space and matrix are arranged by a certain percentage, relative position calculated before thus judging and heat generating spot projection coordinate in whole space are as the position of human body.
Step 4, the coordinate position at the element place being labeled is human body position.
As an example of the present embodiment, when obtaining temperature value matrix, also include putting forward high-precision step, as in figure 2 it is shown, specifically include:
Step 1, is detected institute overlay area by temperature sensor, obtains the first temperature value matrix；
Step 2, use bilinear interpolation and matlab function that the precision of the first temperature value matrix is carried out lifting process, obtain the second temperature value matrix, the first temperature value matrix of 8*8 is used bilinear interpolation algorithm, call the image processing function of matlab, obtain the second temperature value matrix of a 500*500 as shown in Figure 4, it can be seen that the second temperature value matrix is finely many than 8*8 the first temperature value matrix obtained at the beginning；
Step 3, compares the second temperature value matrix and predetermined threshold value, indicates the temperature value element higher than threshold value；
Step 4, the second temperature value matrix is corresponding in proportion with the coordinate of temperature sensor institute overlay area；
Step 5, the coordinate position at the element place being labeled is human body position.
As an example of the present embodiment, indicating temperature value and completed by matrix two-dimensional method higher than the element of threshold value, higher than the element of threshold value, temperature value is put 1, other elements set to 0；Or temperature value is set to 0 higher than the element of threshold value, other elements put 1.
In the present embodiment, threshold value can be inputted setting by user, or is selected to determine between 13.5 DEG C-17.5 DEG C by user.
The first temperature value matrix of the present embodiment is obtained by MEMS infrared sensor array.It is little, lightweight, low in energy consumption that MEMS infrared sensor array has volume, easily with the advantage such as IC technique combines, and compared with general semiconductor transducer, the operating temperature range of MEMS infrared sensor array is bigger, sensitivity is higher, and response speed faster, therefore has very big advantage.
Adopt MEMS infrared sensor array to carry out the series of steps such as infrared detection, data acquisition, signal processing, feature extraction and selection, A/D conversion, signal output and indoor human body and position thereof are identified and judge, make corresponding interface for further intellectualizing system facilitating.
Embodiment two
A kind of system of human bioequivalence and location, as it is shown in figure 5, include the temperature sensor, the processor that are sequentially connected with, as shown in Figure 6, processor includes:
Temperature value matrix acquisition module, for receiving the temperature value data that temperature sensor sends over, and form the first temperature value matrix, as shown in Figure 3, obtain the matrix of a 8*8 (64 pixel), in this matrix, each numerical value is temperature value, using the first temperature value matrix as temperature value Output matrix to comparing sign module；
Relatively indicate module, for the temperature value of each element in temperature value matrix and threshold value being compared, indicate the temperature value element higher than threshold value；
Ratio projection module, for corresponding with the coordinate of temperature sensor institute overlay area by temperature value matrix；
Human body locating module, exports the coordinate position at the element place being labeled as the position of human body result identified.
An example as the present embodiment, as shown in Figure 7, temperature value matrix acquisition module also includes precision improvement unit, for using bilinear interpolation and matlab function to carry out process and obtain the second temperature value matrix in the first temperature value matrix, and using the second temperature value matrix as temperature value Output matrix to comparing sign module.
The first temperature value matrix of 8*8 is used bilinear interpolation algorithm, call the image processing function of matlab, obtain the second temperature value matrix of a 500*500 as shown in Figure 4, it can be seen that the second temperature value matrix is finely many than 8*8 the first temperature value matrix obtained at the beginning；
As an example of the present embodiment, as shown in Figure 8, comparing sign module and also include matrix two-dimensional unit, for temperature value is put 1 higher than the element of threshold value, other elements set to 0, or are set to 0 higher than the element of threshold value by temperature value, and other elements put 1.
As an example of the present embodiment, as it is shown in figure 9, also include the input equipment being connected to processor, for inputting or select threshold value for user, and the comparison of threshold value transmission to processor is indicated module.Threshold value can be inputted setting by user, or is selected to determine between 13.5 DEG C-17.5 DEG C by user.
The processor output port of the present embodiment also can connect outut device, and outut device here can be display etc..
MEMS infrared sensor array is selected in the temperature sensor of the present embodiment.It is little, lightweight, low in energy consumption that MEMS infrared sensor array has volume, easily with the advantage such as IC technique combines, and compared with general semiconductor transducer, the operating temperature range of MEMS infrared sensor array is bigger, sensitivity is higher, and response speed faster, therefore has very big advantage.
Adopt MEMS infrared sensor array to carry out the series of steps such as infrared detection, data acquisition, signal processing, feature extraction and selection, A/D conversion, signal output and indoor human body and position thereof are identified and judge, make corresponding interface for further intellectualizing system facilitating.
It should be appreciated that for those of ordinary skills, it is possible to improved according to the above description or converted, and all these are improved and convert the protection domain that all should belong to claims of the present invention.
Claims (10)
1. the method for a human bioequivalence and location, it is characterised in that:
By temperature sensor, institute overlay area is detected, obtain the first temperature value matrix；
The temperature value of each element in described first temperature value matrix is compared with predetermined threshold value respectively, indicates the temperature value element higher than described threshold value；
Described first temperature value matrix is corresponding with the coordinate of described temperature sensor institute overlay area；
The coordinate position at the described element place being labeled is human body position.
2. the method for a kind of human bioequivalence according to claim 1 and location, it is characterised in that:
After obtaining described first temperature value matrix, use bilinear interpolation and matlab function that described first temperature value matrix is processed, obtain the second temperature value matrix；
Described second temperature value matrix and described predetermined threshold value are compared, indicates the temperature value element higher than described threshold value.
3. the method for a kind of human bioequivalence according to claim 1 and 2 and location, it is characterized in that: described sign temperature value is completed by matrix two-dimensional method higher than the element of described threshold value, higher than the element of described threshold value, temperature value is put 1, and other elements set to 0；Or temperature value is set to 0 higher than the element of described threshold value, other elements put 1.
4. the method for a kind of human bioequivalence according to claim 3 and location, it is characterised in that: described threshold value can be inputted setting by user, or is selected to determine between 13.5 DEG C-17.5 DEG C by user.
5. the method for a kind of human bioequivalence according to claim 1 and 2 and location, it is characterised in that: described first temperature value matrix is obtained by MEMS infrared sensor array.
6. a system for human bioequivalence and location, including the temperature sensor being sequentially connected with, processor, it is characterised in that described processor includes:
Temperature value matrix acquisition module, for receiving the temperature value data that described temperature sensor sends over, and forms the first temperature value matrix, using described first temperature value matrix as temperature value Output matrix to comparing sign module；
Relatively indicate module, for the temperature value of each element in described temperature value matrix and threshold value being compared, indicate the described temperature value element higher than described threshold value；
Ratio projection module, for corresponding with the coordinate of described temperature sensor institute overlay area by described temperature value matrix；
Human body locating module, exports the coordinate position at the described element place being labeled as the position of human body result identified.
7. the system of a kind of human bioequivalence according to claim 6 and location, it is characterized in that: described temperature value matrix acquisition module also includes precision improvement unit, obtain the second temperature value matrix for described first temperature value matrix uses bilinear interpolation and matlab function carry out process, and described second temperature value matrix is compared sign module as temperature value Output matrix to described.
8. the system of a kind of human bioequivalence according to claim 6 and location, it is characterized in that: the described sign module that compares also includes matrix two-dimensional unit, for temperature value is put 1 higher than the element of described threshold value, other elements set to 0, or temperature value is set to 0 higher than the element of described threshold value, other elements put 1.
9. the system of a kind of human bioequivalence according to claim 6 and location, it is characterised in that: also include the input equipment being connected to processor, for inputting or select described threshold value for user, and the output of described threshold value is compared sign module to described.
10. the system of a kind of human bioequivalence according to claim 6 and location, it is characterised in that: described temperature sensor is MEMS infrared sensor array.
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| CN108828576A (en) * | 2018-04-10 | 2018-11-16 | 上海摩软通讯技术有限公司 | Indoor locating system and method |
| CN109186044A (en) * | 2018-07-11 | 2019-01-11 | 青岛海信日立空调系统有限公司 | A kind of human perception method, apparatus and air conditioner |
| CN109727429A (en) * | 2017-10-27 | 2019-05-07 | 恒为科技（上海）股份有限公司 | Human body localization method and device, computer readable storage medium, terminal |
| CN110134220A (en) * | 2019-05-22 | 2019-08-16 | 深圳市鑫宇鹏电子科技有限公司 | A kind of device sleeps awakening method based on infrared sensor array |
| CN110426748A (en) * | 2019-08-26 | 2019-11-08 | 深圳市枫芒科技有限公司 | There are detection method, device, storage mediums for quasi- static human body |
| CN110568515A (en) * | 2019-08-26 | 2019-12-13 | 深圳市枫芒科技有限公司 | Human body existence detection method and device based on infrared array and storage medium |
| CN112630729A (en) * | 2020-12-11 | 2021-04-09 | 杭州博镨科技有限公司 | Method for positioning and tracking indoor human target based on thermopile sensor |
| 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 |
| CN113640897A (en) * | 2021-08-05 | 2021-11-12 | 上海上实龙创智能科技股份有限公司 | Method and device for detecting human body in space, electronic equipment and storage medium |
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| CN112630729A (en) * | 2020-12-11 | 2021-04-09 | 杭州博镨科技有限公司 | Method for positioning and tracking indoor human target based on thermopile sensor |
| CN112630729B (en) * | 2020-12-11 | 2024-05-07 | 杭州博镨科技有限公司 | Method for positioning and tracking indoor human target based on thermopile sensor |
| 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 |
| 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 |
| CN113640897A (en) * | 2021-08-05 | 2021-11-12 | 上海上实龙创智能科技股份有限公司 | Method and device for detecting human body in space, electronic equipment and storage medium |
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Application publication date: 20160706 |