CN109580048A - A kind of evaluation method, device and the mattress of the distribution of mattress pressure - Google Patents
A kind of evaluation method, device and the mattress of the distribution of mattress pressure Download PDFInfo
- Publication number
- CN109580048A CN109580048A CN201910118999.2A CN201910118999A CN109580048A CN 109580048 A CN109580048 A CN 109580048A CN 201910118999 A CN201910118999 A CN 201910118999A CN 109580048 A CN109580048 A CN 109580048A
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- Prior art keywords
- pressure
- mattress
- piezoelectric film
- profile exponent
- film sensor
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- 238000009826 distribution Methods 0.000 title claims abstract description 17
- 238000011156 evaluation Methods 0.000 title claims abstract description 13
- 238000013507 mapping Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 11
- 239000011229 interlayer Substances 0.000 claims description 10
- 238000009954 braiding Methods 0.000 claims description 5
- 239000010408 film Substances 0.000 description 48
- 210000001217 buttock Anatomy 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 210000001624 hip Anatomy 0.000 description 3
- 210000000689 upper leg Anatomy 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 241001669679 Eleotris Species 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000036449 good health Effects 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
The invention discloses evaluation method, device and the mattresses of a kind of distribution of mattress pressure, and this method comprises the following steps: acquiring the pressure data of multiple piezoelectric film sensors；According to the pressure data, the average value for the pressure that the piezoelectric film sensor is sensed is calculated, by the average value, calculates pressure profile exponent；According to mapping relations are preset, the pressure profile exponent mapped mattress comfort grade is determined.The present invention can be based on pressure distribution situation, objectively evaluate the comfort level of mattress.
Description
Technical field
The present invention relates to mattress technical field, especially a kind of evaluation method, device and the mattress of the distribution of mattress pressure.
Background technique
Mattress is to guarantee that consumer secures good health, comfortably sleeps and use a kind of between human body and bed
The material of article, mattress is various, and the mattress of different materials production can bring different sleeper effects to people, nowadays more and more
Family begins to use mattress.
In mattress exploitation and sales process, the hardness and bearing capacity of mattress always are experience or use by developer
The subjective experience at family determines, lacks objective test method, to choose to mattress exploitation and mattress and bring certain blindness
Property.
Summary of the invention
The present invention provides evaluation method, device and the mattress of a kind of mattress pressure distribution, can be based on pressure distribution situation, visitor
See the comfort level of evaluation mattress.
According to the first aspect of the invention, the present invention provides a kind of evaluation method of mattress pressure distribution, including walks as follows
It is rapid:
Acquire the pressure data of multiple piezoelectric film sensors；
According to the pressure data, the average value for the pressure that the piezoelectric film sensor is sensed is calculated, passes through institute
Average value is stated, pressure profile exponent is calculated；
According to mapping relations are preset, the pressure profile exponent mapped mattress comfort grade is determined.
Preferably, the pressure profile exponent is the quadratic sum of pressure deviation from average.
Preferably, the piezoelectric film sensor is fixed on mattress at predefined intervals.
It preferably, further include following steps: piezoelectricity is thin before the pressure data for acquiring multiple piezoelectric film sensors
The initial value of film sensors is zeroed.
According to the second aspect of the invention, the present invention provides a kind of evaluating apparatus of mattress pressure distribution, comprising: acquisition mould
Block, for acquiring the pressure data of multiple piezoelectric film sensors；Computing module, for calculating institute according to the pressure data
The average value for stating the pressure that piezoelectric film sensor is sensed calculates pressure profile exponent by the average value；Determine mould
Block, for determining the pressure profile exponent mapped mattress comfort grade according to mapping relations are preset.
According to the third aspect of the invention we, the present invention provides a kind of mattress, including mattress body, is fixed in mattress body
Multiple piezoelectric film sensors and the controller that is connected with the piezoelectric film sensor, the controller be configured to hold
Row following steps: the pressure data of multiple piezoelectric film sensors is acquired；According to the pressure data, the piezoelectric membrane is calculated
The average value for the pressure that sensor is sensed calculates pressure profile exponent by the average value；It is closed according to default mapping
System, determines the pressure profile exponent mapped mattress comfort grade.
Preferably, the pressure profile exponent is the quadratic sum of pressure deviation from average.
Preferably, soft interlayer is fixed at the top of the mattress body, the piezoelectric film sensor is according to scheduled
Interval is fixed on the soft interlayer.
Preferably, the soft interlayer is nonwoven layer or braiding precoat.
Preferably, the piezoelectric film sensor extends along mattress body width direction, all piezoelectric film sensor edges
Mattress body length direction is according to spaced at predetermined intervals.
In the present invention, is detected by multiple piezoelectric film sensors after human body lies down, generated at the multiple positions of mattress
Pressure data, controller pass through the mapping of pressure profile exponent and mattress comfort grade by calculating pressure profile exponent
Relationship determines the comfort of mattress, and this evaluation method is more objective, relatively more accurately.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the mattress of an embodiment of the present invention；
Fig. 2 is the flow chart for the evaluation method that the mattress pressure of an embodiment of the present invention is distributed.
Specific embodiment
As shown in Figure 1, the structural schematic diagram of the mattress for an embodiment of the present invention comprising mattress body 1, in mattress
Multiple piezoelectric film sensors 2 are fixed on ontology 1, piezoelectric film sensor 2 can be distributed in the multiple of 1 surface of mattress body
Position, further includes the controller being connected with the piezoelectric film sensor 2, and controller can be control chip and its mutually powered-down
Road calculates and is sent for data.
The embodiment of the present invention provides a kind of evaluation method of mattress pressure distribution, as shown in Fig. 2, it includes the following steps:
S100: the pressure data of multiple piezoelectric film sensors is acquired.
As shown in Figure 1, piezoelectric film sensor is in a strip shape, it is distributed in mattress surface, after human body is lain to mattress, mattress is each
The piezoelectric film sensor at place senses pressure, produces the pressure signal of characterization pressure, and controller receives the pressure signal
Later, by parsing pressure signal, pressure data therein can be acquired, pressure data includes that piezoelectric film sensor is incuded
The pressure value arrived.
Piezoelectric film sensor everywhere can be numbered, each piezoelectric film sensor is corresponding with controller to be connect
Mouth connection, by this corresponding relationship, controller could be aware that pressure detected by the piezoelectric film sensor of each position
Value.
S200: according to the pressure data, calculating the average value for the pressure that the piezoelectric film sensor is sensed, leads to
The average value is crossed, pressure profile exponent is calculated.
Controller is therefrom acquired pressure data, is included corresponding pressure value in pressure data, adopted by parsing pressure signal
After the pressure data for collecting all piezoelectric film sensors, the average value for the pressure that piezoelectric film sensor is sensed is calculated.
Again by the average value, pressure profile exponent is calculated, pressure profile exponent characterizes pressure value in the distribution character of mattress surface,
Pressure profile exponent is smaller, shows that mattress is more uniform to the dispersion of pressure, the compression of body part is lighter, the comfort of mattress
It is higher.
S300: according to mapping relations are preset, the pressure profile exponent mapped mattress comfort grade is determined.
Controller is stored with the mapping relations of pressure profile exponent Yu mattress comfort grade, which can be to reflect
Penetrate the form storage of relation list.After pressure profile exponent calculates, by tabling look-up, it can determine that corresponding mattress is comfortable
Property grade.Mattress comfort grade can be divided into Pyatyi, and each grade defines the numberical range of relevant pressure profile exponent,
The numberical range for the pressure profile exponent that each grade limits can be adjusted according to the type of mattress.Pressure profile exponent is got over
It is small, show that mattress is more uniform to the dispersion of pressure, the compression of body part is lighter, and the comfort of mattress is higher.
In one embodiment, pressure profile exponent is the quadratic sum of pressure deviation from average.It is with 8 piezoelectric film sensors
Example, pressure mean values are P=(P1+P2+P3+P4+P5+P6+P7+P8)/8, wherein P1-P8 is eight piezoelectric film sensors
The pressure value sensed.The calculating formula of the quadratic sum PD I of deviation from average is as follows:
PDI=(P-P1) (P-P1)+(P-P2) (P-P2)+(P-P3) (P-P3)+(P-P4) (P-P4)+(P-P5) (P-P5)
+(P-P6)(P-P6)+(P-P7)(P-P7)+(P-P8)(P-P8)。
In another embodiment, piezoelectric film sensor is equipped with seven, and seven piezoelectric film sensors can be respectively set
Human body neck position, shoulder back position, waist, buttocks, thigh position, shank position and foot on mattress, to be respectively used to examine
Survey the pressure at human body neck position, shoulder back position, waist, buttocks, thigh position, shank position and foot.
In the above embodiments, the piezoelectric film sensor is fixed on the upper surface of mattress at predefined intervals,
Or between the bed course of mattress top, the common structure of mattress includes positioned at the spring layer of bottom and above spring layer
Various bed courses, bed course can be cotton layer, nonwoven layer or braiding precoat etc..Piezoelectric film sensor can be located in mattress
Bed course between.
In one embodiment, further include following steps before step S100: by the initial value of piezoelectric film sensor into
Row zero.After each detection is completed, the initial value of piezoelectric film sensor can be zeroed by controller automatically, prevent
Detection data is wrong, promotes the accuracy of detection.
The embodiment of the present invention also provides a kind of evaluating apparatus of mattress pressure distribution, comprising: and acquisition module is more for acquiring
The pressure data of a piezoelectric film sensor；Computing module, for calculating the piezoelectric membrane sensing according to the pressure data
The average value for the pressure that device is sensed calculates pressure profile exponent by the average value；Determining module, for according to pre-
If mapping relations, the pressure profile exponent mapped mattress comfort grade is determined.
The explanation of the evaluating apparatus of the mattress pressure distribution of the present embodiment can be with reference to the evaluation of above-mentioned mattress pressure distribution
The embodiment of method part, this will not be repeated here.
The embodiment of the present invention also provides a kind of mattress, including mattress body 1, the multiple piezoelectricity being fixed in mattress body 1
Thin film sensor 2 and the controller being connected with the piezoelectric film sensor 2, mattress body 1 can have existing mattress
Common structure, the spring layer including being located at bottom and the various bed courses above spring layer, bed course can be cotton layer, non-woven fabrics
Layer or braiding precoat etc..Piezoelectric film sensor 2 can be directly anchored to the surface of mattress body 1, can also be fixed on
In bed course.For more accurately sensed pressure, it is preferably directly anchored to the fixed form on 1 surface of mattress body.Controller can
To be control chip and its interlock circuit, calculates and send for data, specifically can be single-chip microcontroller, dsp chip etc..Controller
It can integrate in a shell, be fixed on the side of mattress inside or mattress.
Wherein, the controller is configured to carry out following steps: acquiring the pressure data of multiple piezoelectric film sensors；
According to the pressure data, the average value for the pressure that the piezoelectric film sensor is sensed is calculated, by the average value,
Calculate pressure profile exponent；According to mapping relations are preset, the pressure profile exponent mapped mattress comfort grade is determined.
Further, the pressure profile exponent is the quadratic sum of pressure deviation from average.
Above-mentioned related controller is used for illustrating for the step of executing can be with reference to the evaluation of above-mentioned mattress pressure distribution
The embodiment of method part, this will not be repeated here.
In one embodiment, soft interlayer is fixed at the top of the mattress body, top here refers to mattress
Soft interlayer is arranged in the upper surface of mattress body in the top of thickness direction, the piezoelectric film sensor is according to scheduled
Interval is fixed on the soft interlayer.The soft interlayer can be nonwoven layer or braiding precoat.Wherein, piezoelectric membrane
The quantity of sensor and fixed position can have the following two kinds embodiment.
In one embodiment, as shown in Figure 2, piezoelectric film sensor can be set eight, eight piezoelectric membranes
Sensor extends along the width direction of mattress body, and all piezoelectric film sensors are uniform along mattress body length direction
It is distributed, there is preset space length between two neighboring piezoelectric film sensor.Pressure mean values are P=(P1+P2+P3+P4+P5+P6
+ P7+P8)/8, wherein the pressure value that P1-P8 is sensed by eight piezoelectric film sensors.The quadratic sum PDI's of deviation from average
Calculating formula is as follows:
PD I=(P-P1) (P-P1)+(P-P2) (P-P2)+(P-P3) (P-P3)+(P-P4) (P-P4)+(P-P5) (P-
P5)+(P-P6)(P-P6)+(P-P7)(P-P7)+(P-P8)(P-P8)。
In another embodiment, piezoelectric film sensor is equipped with seven, and seven piezoelectric film sensors can be set respectively
Set human body neck position, shoulder back position, waist, buttocks, thigh position, shank position and foot on mattress, then it is two neighboring
Spacing between piezoelectric film sensor is different, to be respectively used to detection human body neck position, shoulder back position, waist, buttocks, big
The pressure of leg position, shank position and foot.
The above content is specific embodiment is combined, further detailed description of the invention, and it cannot be said that this hair
Bright specific implementation is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, a number of simple deductions or replacements can also be made.
Claims (10)
1. a kind of evaluation method of mattress pressure distribution, which comprises the steps of:
Acquire the pressure data of multiple piezoelectric film sensors；
According to the pressure data, the average value for the pressure that the piezoelectric film sensor is sensed is calculated, by described flat
Mean value calculates pressure profile exponent；
According to mapping relations are preset, the pressure profile exponent mapped mattress comfort grade is determined.
2. according to the method described in claim 1, it is characterized by:
The pressure profile exponent is the quadratic sum of pressure deviation from average.
3. according to the method described in claim 2, it is characterized by:
The piezoelectric film sensor is fixed on mattress at predefined intervals.
4. the method according to claim 1, wherein the pressure data for acquiring multiple piezoelectric film sensors it
Before, further include following steps:
The initial value of piezoelectric film sensor is zeroed.
5. a kind of evaluating apparatus of mattress pressure distribution characterized by comprising
Acquisition module, for acquiring the pressure data of multiple piezoelectric film sensors；
Computing module, for calculating being averaged for the pressure that the piezoelectric film sensor is sensed according to the pressure data
Value calculates pressure profile exponent by the average value；
Determining module, for determining the pressure profile exponent mapped mattress comfort grade according to mapping relations are preset.
6. a kind of mattress, it is characterised in that:
Including mattress body, the multiple piezoelectric film sensors being fixed in mattress body and with the piezoelectric film sensor
Connected controller, the controller are configured to carry out following steps: acquiring the pressure data of multiple piezoelectric film sensors；
According to the pressure data, the average value for the pressure that the piezoelectric film sensor is sensed is calculated, by the average value,
Calculate pressure profile exponent；According to mapping relations are preset, the pressure profile exponent mapped mattress comfort grade is determined.
7. mattress according to claim 6, it is characterised in that:
The pressure profile exponent is the quadratic sum of pressure deviation from average.
8. according to the method described in claim 6, it is characterized by:
Soft interlayer is fixed at the top of the mattress body, the piezoelectric film sensor is fixed on institute at predefined intervals
It states on soft interlayer.
9. according to the method described in claim 8, it is characterized by:
The soft interlayer is nonwoven layer or braiding precoat.
10. the method according to claim 6, it is characterised in that:
The piezoelectric film sensor extends along mattress body width direction, and all piezoelectric film sensors are along mattress body length
Direction is according to spaced at predetermined intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910118999.2A CN109580048A (en) | 2019-02-18 | 2019-02-18 | A kind of evaluation method, device and the mattress of the distribution of mattress pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910118999.2A CN109580048A (en) | 2019-02-18 | 2019-02-18 | A kind of evaluation method, device and the mattress of the distribution of mattress pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109580048A true CN109580048A (en) | 2019-04-05 |
Family
ID=65918790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910118999.2A Pending CN109580048A (en) | 2019-02-18 | 2019-02-18 | A kind of evaluation method, device and the mattress of the distribution of mattress pressure |
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| CN (1) | CN109580048A (en) |
Cited By (2)
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Application publication date: 20190405 |
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