CN106108896A - A kind of based on flesh electrometric commercial car boarding Comfort Evaluation method - Google Patents
A kind of based on flesh electrometric commercial car boarding Comfort Evaluation method Download PDFInfo
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- CN106108896A CN106108896A CN201610407430.4A CN201610407430A CN106108896A CN 106108896 A CN106108896 A CN 106108896A CN 201610407430 A CN201610407430 A CN 201610407430A CN 106108896 A CN106108896 A CN 106108896A
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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
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/389—Electromyography [EMG]
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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
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/7253—Details of waveform analysis characterised by using transforms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
Abstract
The invention discloses a kind of based on flesh electrometric commercial car boarding Comfort Evaluation method, comprise the following steps: select the experimenter's upper and lower extremities of process health muscle of mainly having an effect of getting on or off the bus to test muscle group as candidate, use multichannel physiograph myoelectricity test systematic survey each experimenter candidate to test the state of activation of each piece of test muscle of muscle group；The activation degree adding up each experimenter every piece test muscle obtains the muscle activation level average values of every piece of test muscle；According to the muscle activation level average values of every piece of test muscle, the major muscles group of each experimenter is selected；The weight of the major muscles group selected is set；Commercial car boarding Comfort Evaluation function is determined according to weight.The index of the inventive method commercial car lowering resistance easy to operate, energetic, low cost, efficiency are high.
Description
Technical field
The present invention relates to a kind of vehicle Comfort Evaluation method, be specifically related to a kind of commercial car boarding Comfort Evaluation side
Method.
Background technology
Along with the raising day by day of present stage living standards of the people, the comfortableness of automobile has become as the finger evaluating automobile
Mark, is also the most popular required similarly for comfortableness for commercial car, and wherein the boarding comfortableness of commercial car refers to
Enter or leave convenient, level of comfort during commercial-vehicle cab.Just turning now to, there is not yet the commercialization of complete set at present
Car lowering resistance carries out accurate and effective objective evaluation system, and Comfort Evaluation system general for commercial car only comprises
The handling comforts of seat comfort and steering wheel etc. define, and these definition are all to enter for the comfortableness in driver's cabin
The definition of row.Owing to commercial-vehicle cab is higher than general driver's cab of sedan height, it is therefore necessary to will enter driver's cabin and from
Comfortableness when opening driver's cabin is also added to overall comfortableness and considers in scope.Evaluation to boarding comfortableness mostly is by master
See to evaluate and automobile man-machine design data are evaluated, it is impossible to boarding subjective for client is felt to be converted into effectively, science, has
Convince by force the quantizating index that power, cause effect relation are clear and definite.Therefore need a kind of commercial car boarding comfortable for improving and solving this problem
Property evaluation methodology.
Summary of the invention
The invention aims to overcome the deficiency of existing appraisement system, and provide a kind of based on the electrometric commercialization of flesh
Car boarding Comfort Evaluation method, the index of the method commercial car lowering resistance easy to operate, energetic, low cost, efficiency are high.
It is an object of the invention to be realized by below scheme:
A kind of based on flesh electrometric commercial car boarding Comfort Evaluation method, comprise the following steps:
Step one, select some commercial car drivers as experimenter, select experimenter to get on or off the bus the upper and lower of process health
Limb muscle of mainly having an effect tests muscle group as candidate, uses the multichannel physiograph myoelectricity test each experimenter of systematic survey
Candidate tests the state of activation of each piece of test muscle of muscle group；
Step 2, add up the activation degree of each experimenter every piece test muscle, to each in every tested muscle group of experimenter
The activation degree of block test muscle is averaged, and is taken all by the activation level average values of the specific piece of muscle of all experimenters again
Value, obtains the muscle activation level average values of every piece of test muscle with this；
Step 3, the muscle activation level average values of the every piece of test muscle obtained according to described step 2, to each tested
The major muscles group of person selects, if the activation degree overall average of certain block test muscle is less than the threshold value set, then assert
It is non-principal muscle group, rejects this block muscle, finally determines the upper and lower extremities major muscles for commercial car boarding Comfort Evaluation
Group；
Step 4, the weight of the major muscles group selecting described step 3 are set；
Step 5, the weight of the major muscles group calculated according to described step 4 determine commercial car boarding Comfort Evaluation
Function.
Further, in described step one select experimenter get on or off the bus process health mainly have an effect muscle as candidate survey
During examination muscle group, by the upper left trapezius muscle of experimenter's upper limb, left triangular muscle, ridge, upper left flesh, upper right trapezius muscle, right triangular muscle
With upper right ridge flesh, and the left musculus soleus of lower limb, right musculus soleus, left gastrocnemius, left rectus femoris, left rope flesh, right sura
Flesh, right rectus femoris, right rope flesh test muscle group as candidate.The main primary efficacy of human pilot upper limb when getting on or off the bus is
Pull health, help body steadiness to get on the bus, dispose the most appropriate to evaluate vehicle armrest position, select upper left trapezius muscle, a left side
The muscle of upper extremity that intermediate cam flesh, ridge, upper left flesh, upper right trapezius muscle, right triangular muscle and upper right ridge flesh etc. are evaluated as lowering resistance
Group；For lower limb, act primarily as the effect alternately climbing stile, arrange for evaluation vehicle stratum number and difference in height and whether close
Reason, selects right tibialis anterior, left and right musculus soleus, left and right gastrocnemius, left and right rectus femoris, left and right rope flesh etc. to comment as lowering resistance
The lower limb muscles group of valency.
Further, described step one use polygraph myoelectricity test systematic survey each experimenter candidate to survey
The detailed process of the state of activation of each piece of test muscle of examination muscle group is: electromyographic signal collection electrode slice is affixed on selected test
On muscle, then multichannel physiograph myoelectricity test system is connected with electrode slice；Maximum in conjunction with each piece of tested muscle
Spontaneous contractions status criteriaization test posture, demarcates every piece of tested muscle maximum spontaneous contractions state.
Further, the detailed process of described step 2 is: by commercial car car door opening at utmost, allow experimenter enter
The action that gets on and off of row, often climbs up single order step as record node using experimenter, records the myoelectricity of muscle between two nodes
Situation of change, is repeated several times said process, then in conjunction with muscle activation degree during nominal data calculating boarding: muscle activation
Myoelectricity calibration value when degree=current muscle myoelectricity numerical value/muscle maximum is had an effect, the average of repetitive measurement result is boarding
This experimenter's muscle activation level average values in journey, takes the activation level average values specifying block muscle of all testers all again
Value, obtains this tested muscle activation level average values, and mode obtains the muscle activation level average values of every piece of tested muscle successively.
Further, in described step 4, weight setting includes: count each piece of upper limb for the main muscle group chosen
The average activation degree of muscle is respectively c1、c2、c3、…cn, then the weighted score a of first piece of muscle of upper limb1For c1/(c1+c2+
c3+…+cn), the weighted score a of second piece of muscle2For c2/(c1+c2+c3+…+cn), the weighted score a of n-th piece of musclenFor cn/
(c1+c2+c3+…+cn)；
The average activation degree of each piece of muscle of lower limb is respectively d1、d2、d3、…dn, then the weight of first piece of muscle of lower limb
Score b1For d1/(d1+d2+d3+…+dn), second piece of b2For d2/(d1+d2+d3+…+dn), n-th piece of bnFor dn/(d1+d2+d3+…+
dn)。
Further, the boarding comfortableness function that described step 5 determines is:
F=1/2 (f1+f2)
Wherein, f1For upper limb boarding comfortableness function, f1=a1x1+a2x2+a3x3+…+anxn；
f2For lower limb boarding comfortableness function, f2=b1y1+b2y2+b3y3+…+bnyn；
a1、a2、a3、…anWeighted score for every piece of upper limb muscle；b1、b2、b3、…bnWeight for every piece of lower limb muscle
Score.
When evaluating commercial car lowering resistance, functional value is the least, then stratum's number and the height of this commercial car handrail or stile are described
Difference design is more reasonable, and lowering resistance is the best.
Beneficial effects of the present invention:
Experimenter is installed test device by using successively and connects computer, carry out objective measurement and calculate by the present invention
Muscle activation degree, calculating each piece of muscle weight, collect calculating boarding comfortableness and divide, these steps constitute a kind of commercial car and take advantage of
Fall Comfort Evaluation method, have easy to operate, evaluate accurately, quantified high excellent of boarding performance indications, low cost, efficiency
Point.The present invention is acquired by arranging the change of having an effect in boarding activity of the muscle electric transducer muscle to experimenter, root
Have an effect according to the maximum previously recorded, have definition accurately, comfortableness refer to quantify, advantage accurately.
Accompanying drawing explanation
Fig. 1 is a kind of based on flesh electrometric commercial car boarding Comfort Evaluation method flow diagram.
Detailed description of the invention
Below in conjunction with flow chart, this patent is specifically described.
A kind of based on flesh electrometric commercial car boarding Comfort Evaluation method, comprise the following steps:
Step one, first select some commercial car drivers as experimental subjects.Select to get on or off the bus process health simultaneously
Upper and lower extremities muscle of mainly having an effect test muscle group as candidate, use multichannel physiograph myoelectricity test systematic survey also
Analyze candidate and test the state of activation of muscle group.
The main primary efficacy of human pilot upper limb when getting on or off the bus, for pulling health, helps body steadiness to get on the bus, in order to
Evaluation vehicle armrest position disposes the most appropriate, selects upper left trapezius muscle, left triangular muscle, ridge, upper left flesh, upper right trapezius muscle, the right side
The muscle of upper extremity group that intermediate cam flesh and upper right ridge flesh etc. are evaluated as lowering resistance；Act primarily as lower limb and alternately climb stile
Effect, whether reasonable, select right tibialis anterior, left and right musculus soleus, a left side if arranging for evaluation vehicle stratum number and difference in height
The lower limb muscles group that right gastrocnemius, left and right rectus femoris, left and right rope flesh etc. are evaluated as lowering resistance.Therefore, by experimenter's upper limb
Upper left trapezius muscle, left triangular muscle, ridge, upper left flesh, upper right trapezius muscle, right triangular muscle and upper right ridge flesh, an and left side for lower limb
Musculus soleus, right musculus soleus, left gastrocnemius, left rectus femoris, left rope flesh, right gastrocnemius, right rectus femoris, right rope flesh conduct
Candidate tests muscle group.
Electromyographic signal collection electrode slice is affixed on selected test muscle, every piece of muscle pastes two cube electrode sheets, simultaneously
Each muscle also should choose a corresponding standard point, node that this point is muscle or do not have the place of muscle.The most each
Tested muscle should paste three electrode slices for measurement.Then by multichannel physiograph myoelectricity test system and electrode slice phase
Even.A piece of being connected to standard point, other two panels are connected to muscle.
Maximum spontaneous contractions (MVC) status criteriaization in conjunction with each piece of tested muscle tests posture, action, to measured
Every piece of muscle maximum spontaneous contractions state is demarcated.Every piece of muscle maximum is had an effect at least 3 times, and it is each to record maximum process of having an effect
The myoelectricity strength signal of block muscle, the average of 3 records is as calibration value.
Step 2, candidate to each experimenter test muscle group and carry out objective measurement, and add up each experimenter every piece test
The activation degree of muscle, show after successively every experimenter is tested at least 3 times that in tested muscle group, each piece of test muscle swashs
Level average values alive.
By commercial car car door opening at utmost, experimenter is allowed to carry out the action got on and off in its most natural mode.
Record keeping personnel, using often climbing up single order step as record node, records the myoelectricity situation of change of muscle between two nodes, for making
This process is more accurately repeated 3 times by result, simultaneously for reducing the impact that muscle fatigue is brought, completes one-time continuous every time
Getting on and off should allow muscle recovery have a rest every 3-5min when moving.In conjunction with muscle activation degree during nominal data calculating boarding:
Myoelectricity calibration value when muscle activation degree=current muscle myoelectricity numerical value/muscle maximum is had an effect.The average of three measurement results is i.e.
For this measured's muscle activation degree during boarding.The activation degree average of this block muscle of all testers is entered again
Row is average, and income value is this muscle activation level average values.
Step 3, the average muscle activation degree obtained according to step 2 every piece test muscle repetitive measurement, to main flesh
Meat group select.When selecting main muscle group, the average muscle adding up every piece of muscle repetitive measurement of each test sample swashs
The degree of living, is not that the evaluation of lowering resistance all can be made a significant impact by all muscle of test, if the activation journey of this block muscle
Degree overall average less than 10%, is then assert that it is non-principal muscle group, is rejected this block muscle.Finally determine and relax for commercial car boarding
The main muscle group of upper and lower extremities that adaptive is evaluated.
Step 4, weight to main muscle group are set.The quality of boarding comfortableness is the collaborative shadow at polylith muscle
Sound is made decision.For accurate evaluation boarding comfortableness, should determine that in major muscles group, every piece of muscle is to overall boarding comfortableness
Influence degree, calculate its weighted score according to the activation level average values of repetitive measurement:
The average activation degree counting each piece of muscle of upper limb for the main muscle group chosen is respectively c1、c2、c3、…
cn, then the weighted score a of first piece of muscle of upper limb1For c1/(c1+c2+c3+…+cn), the weighted score a of second piece of muscle2For
c2/(c1+c2+c3+…+cn), the weighted score a of n-th piece of musclenFor cn/(c1+c2+c3+…+cn)；In like manner lower limb each piece of muscle
Average activation degree is respectively d1、d2、d3、…dn, then the weighted score b of first piece of muscle of lower limb1For d1/(d1+d2+d3+…+
dn), second piece of b2For d2/(d1+d2+d3+…+dn), n-th piece of bnFor dn/(d1+d2+d3+…+dn)；
Step 5, determine boarding comfortableness function.Business is drawn with formula respectively after calculating weighted score according to step 4
By car upper limb boarding comfortableness and lower limb boarding comfortableness.Collect and obtain commercial car boarding Comfort Evaluation function.Step 4
The middle weighted score a calculating every piece of upper limb muscle respectively1、a2、a3、…an, and the weighted score b of every piece of lower limb muscle1、
b2、b3、…bn, draw commercial car upper limb boarding comfortableness f by below equation respectively1And lower limb boarding comfortableness f2.And then really
Determining F is final commercial car boarding Comfort Evaluation function, wherein, x1、x2、x3、…xnTest for each piece of muscle activation degree
Value.
f1=a1x1+a2x2+a3x3+…+anxn,
f2=b1y1+b2y2+b3y3+…+bnyn
F=1/2 (f1+f2)
When evaluating commercial car lowering resistance, commercial car boarding Comfort Evaluation function F value is the least, then this commercial car boarding is described
Property the best, i.e. the armrest positions of commercial car and stratum's number and difference in height design is more reasonable.
Claims (6)
1. one kind based on flesh electrometric commercial car boarding Comfort Evaluation method, it is characterised in that comprise the following steps:
Step one, select some commercial car drivers as experimenter, select experimenter to get on or off the bus the upper and lower limbs active of process health
Muscle to be had an effect tests muscle group as candidate, uses multichannel physiograph myoelectricity test systematic survey each experimenter candidate
The state of activation of each piece of test muscle of test muscle group；
Step 2, add up each experimenter every piece test muscle activation degree, to each piece of survey in every tested muscle group of experimenter
The activation degree of examination muscle is averaged, and the activation level average values of the specific piece of muscle of all experimenters is taken average again, with
This obtains the muscle activation level average values of every piece of test muscle；
Step 3, the muscle activation level average values of the every piece of test muscle obtained according to described step 2, to each experimenter's
Major muscles group select, if the activation degree overall average of certain block test muscle is less than the threshold value set, then assert that it is
Non-principal muscle group, rejects this block muscle, finally determines the main muscle group of upper and lower extremities for commercial car boarding Comfort Evaluation；
Step 4, the weight of the major muscles group selecting described step 3 are set；
Step 5, the weight of the major muscles group calculated according to described step 4 determine commercial car boarding Comfort Evaluation letter
Number.
2. as claimed in claim 1 a kind of based on flesh electrometric commercial car boarding Comfort Evaluation method, it is characterised in that
Described step one selects the get on or off the bus muscle of mainly having an effect of process health of experimenter when testing muscle group as candidate, by tested
The upper left trapezius muscle of person's upper limb, left triangular muscle, ridge, upper left flesh, upper right trapezius muscle, right triangular muscle and upper right ridge flesh, and under
The left musculus soleus of limb, right musculus soleus, left gastrocnemius, left rectus femoris, left rope flesh, right gastrocnemius, right rectus femoris, right rope
Flesh tests muscle group as candidate.
3. as claimed in claim 2 a kind of based on flesh electrometric commercial car boarding Comfort Evaluation method, it is characterised in that
Described step one use polygraph myoelectricity test systematic survey each experimenter candidate test each piece of survey of muscle group
The detailed process of the state of activation of examination muscle is:
Electromyographic signal collection electrode slice is affixed on selected test muscle, then multichannel physiograph myoelectricity is tested system
It is connected with electrode slice；Maximum spontaneous contractions status criteriaization in conjunction with each piece of tested muscle tests posture, to every piece of tested muscle
Maximum spontaneous contractions state is demarcated.
4. as claimed in claim 1 a kind of based on flesh electrometric commercial car boarding Comfort Evaluation method, it is characterised in that
The detailed process of described step 2 is:
By commercial car car door opening at utmost, allow experimenter carry out the action got on and off, experimenter is often climbed up a stage
Rank, as record node, record the myoelectricity situation of change of muscle between two nodes, said process are repeated several times, then in conjunction with mark
Given data calculates muscle activation degree during boarding: muscle activation degree=current muscle myoelectricity numerical value/muscle maximum is had an effect
Time myoelectricity calibration value, the average of repetitive measurement result is this experimenter's muscle activation level average values during boarding, by institute
The activation level average values specifying block muscle having tester takes average again, obtains this tested muscle activation level average values, depends on
Secondary mode obtains the muscle activation level average values of every piece of tested muscle.
5. as claimed in claim 1 a kind of based on flesh electrometric commercial car boarding Comfort Evaluation method, it is characterised in that
In described step 4, weight setting includes:
The average activation degree counting each piece of muscle of upper limb for the main muscle group chosen is respectively c1、c2、c3、…cn, then
The weighted score a of first piece of muscle of upper limb1For c1/(c1+c2+c3+…+cn), the weighted score a of second piece of muscle2For c2/(c1
+c2+c3+…+cn), the weighted score a of n-th piece of musclenFor cn/(c1+c2+c3+…+cn)；
The average activation degree of each piece of muscle of lower limb is respectively d1、d2、d3、…dn, then the weighted score of first piece of muscle of lower limb
b1For d1/(d1+d2+d3+…+dn), second piece of b2For d2/(d1+d2+d3+…+dn), n-th piece of bnFor dn/(d1+d2+d3+…+dn)。
6. as claimed in claim 1 a kind of based on flesh electrometric commercial car boarding Comfort Evaluation method, it is characterised in that
The boarding comfortableness function that described step 5 determines is:
F=1/2 (f1+f2)
Wherein, f1For upper limb boarding comfortableness function, f1=a1x1+a2x2+a3x3+…+anxn；
f2For lower limb boarding comfortableness function, f2=b1y1+b2y2+b3y3+…+bnyn；
a1、a2、a3、…anWeighted score for every piece of upper limb muscle；b1、b2、b3、…bnWeighted score for every piece of lower limb muscle.
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| CN108742610A (en) * | 2018-04-03 | 2018-11-06 | 吉林大学 | A kind of realization myoelectricity and subjective associated steering Comfort Evaluation method |
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