CN106108896B - One kind being based on the electrometric commercial car boarding Comfort Evaluation method of flesh - Google Patents
One kind being based on the electrometric commercial car boarding Comfort Evaluation method of flesh Download PDFInfo
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- CN106108896B CN106108896B CN201610407430.4A CN201610407430A CN106108896B CN 106108896 B CN106108896 B CN 106108896B CN 201610407430 A CN201610407430 A CN 201610407430A CN 106108896 B CN106108896 B CN 106108896B
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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 one kind being based on the electrometric commercial car boarding Comfort Evaluation method of flesh, includes the following steps：It selects the get on or off the bus upper and lower limbs active muscle that have an effect of process body of subject to test muscle group as candidate, the state of activation of each piece of test muscle of muscle group is tested using each subject candidate of multichannel physiograph myoelectricity test systematic survey；The activation degree for counting every piece of test muscle of each subject 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 subject is selected；The weight of the major muscles group selected is set；Commercial car boarding Comfort Evaluation function is determined according to weight.It is the index of easy to operate, the energetic commercial car lowering resistance of the method for the present invention, at low cost, efficient.
Description
Technical field
The present invention relates to a kind of vehicle Comfort Evaluation methods, and in particular to a kind of commercial car boarding Comfort Evaluation side
Method.
Background technology
With the increasingly raising of living standards of the people at this stage, the comfort of automobile has become a finger of evaluation automobile
Mark, be also similarly for comfort for commercial car it is current public required, the boarding comfort of wherein commercial car refer to
Into or convenient, level of comfort when leaving commercial-vehicle cab.Just turning now to there is not yet the commercialization of complete set at present
Vehicle lowering resistance carries out accurate and effective objective evaluation system, and general Comfort Evaluation system only includes for commercial car
The definition such as the handling comfort of seat comfort and steering wheel, and these definition be all for drive indoor comfort and into
Capable definition.Since 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
Comfort when opening driver's cabin is also added to overall comfort and considers in range.Evaluation to boarding comfort is mostly to pass through master
Evaluation is seen to evaluate automobile man-machine design data, the boarding of client's subjectivity can not be felt to be converted into it is effective, science, have
It is strong to convince power, the specific quantizating index of causality.Therefore it is to improve and solve the problems, such as that this needs a kind of commercial car boarding comfortable
Property evaluation method.
Invention content
The purpose of the invention is to overcome the shortcomings of existing appraisement system, and provide a kind of based on the electrometric commercialization of flesh
Vehicle boarding Comfort Evaluation method, it is the index of easy to operate, the energetic commercial car lowering resistance of this method, at low cost, efficient.
The purpose of the present invention is what is realized by following scheme：
One kind being based on the electrometric commercial car boarding Comfort Evaluation method of flesh, includes the following steps：
Step 1: select several commercial car drivers as subject, select subject get on or off the bus process body up and down
Limb mainly has an effect muscle as candidate test muscle group, and each subject of systematic survey is tested using multichannel physiograph myoelectricity
The state of activation of each piece of test muscle of candidate's test muscle group；
Step 2: counting the activation degree of every piece of test muscle of each subject, every subject is tested each in muscle group
The activation degree of block test muscle is averaged, and the activation level average values of the specific piece muscle of all subjects are taken 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 the 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 of setting, assert
It is non-principal muscle group, rejects the block muscle, the final upper and lower extremities major muscles determined for commercial car boarding Comfort Evaluation
Group；
Step 4: the weight of the major muscles group selected to the step 3 is set；
Step 5: determining commercial car boarding Comfort Evaluation according to the weight of the calculated major muscles group of the step 4
Function.
Further, selected in the step 1 subject get on or off the bus process body main muscle of having an effect as candidate survey
When trying muscle group, by the upper left cucullaris of subject's upper limb, left deltoid muscle, upper left ridge flesh, upper right cucullaris, right intermediate cam flesh
With the left musculus soleus of upper right ridge flesh and lower limb, right musculus soleus, left gastrocnemius, left rectus femoris, Zuo hamstrings, right sura
Flesh, right rectus femoris, You hamstrings are as candidate test muscle group.The main primary efficacy of driver's upper limb when getting on or off the bus is
Body is pulled, body steadiness is helped to get on the bus, it is whether appropriate in order to evaluate the placement of vehicle armrest position, select upper left cucullaris, a left side
The muscle of upper extremity that intermediate cam flesh, upper left ridge flesh, upper right cucullaris, right intermediate cam flesh and upper right ridge flesh etc. are evaluated as lowering resistance
Group；Mainly play a part of alternately to climb stile for lower limb, whether be closed for evaluation vehicle level number and difference in height setting
Reason, selects right tibialis anterior, left and right musculus soleus, left and right gastrocnemius, left and right rectus femoris, Zuo You hamstrings etc. to be commented as lowering resistance
The lower limb muscles group of valence.
Further, it is surveyed using each subject candidate of polygraph myoelectricity test systematic survey in the step 1
The detailed process of the state of activation of each piece of muscle group test muscle of examination is：Electromyographic signal collection electrode slice is affixed on selected test
On muscle, then multichannel physiograph myoelectricity test system is connected with electrode slice；In conjunction with the maximum of each piece of tested muscle
Spontaneous contractions status criteriaization tests posture, is demarcated to every piece of tested muscle maximum spontaneous contractions state.
Further, the detailed process of the step 2 is：By commercial car car door opening to utmostly, allow subject into
Subject is often climbed up single order step as record node, records the myoelectricity of the muscle between two nodes by the action that row gets on and off
The above process is repeated several times in situation of change, 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 mean value of multiple measurement results is boarding
Subject's muscle activation level average values in journey, the activation level average values of the specified block muscle of all testers are taken again
Value obtains the tested muscle activation level average values, and mode obtains the muscle activation level average values of every piece of tested muscle successively.
Further, weight setting includes in the step 4：Each piece of upper limb is counted for selected main muscle group
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 comfort function of the step 5 determination is：
F=1/2 (f1+f2)
Wherein, f1For upper limb boarding comfort function, f1=a1x1+a2x2+a3x3+…+anxn；
f2For lower limb boarding comfort function, f2=b1y1+b2y2+b3y3+…+bnyn；
a1、a2、a3、…anFor the weighted score of every piece of muscle of upper limb；b1、b2、b3、…bnFor the weight of every piece of muscle of lower limb
Score.
When evaluating commercial car lowering resistance, functional value is smaller, then illustrates the level number and height of the commercial car handrail or stile
Difference design is more reasonable, and lowering resistance is better.
Beneficial effects of the present invention：
The present invention installs test device to experimenter by use successively and connects computer, carries out objective measurement and calculate
Muscle activation degree calculates each piece of muscle weight, summarizes and calculate boarding comfort point, these steps constitute a kind of commercial car and multiply
Comfort Evaluation method is dropped, has that easy to operate, evaluation is accurate, quantified boarding performance indicator, is at low cost, efficient excellent
Point.The present invention is acquired have an effect variation of the muscle of subject in boarding activity by the way that muscle electric transducer is arranged, root
It has an effect according to the maximum previously measured, has the advantages that definition is accurate, comfort refers to quantization, accurate.
Description of the drawings
Fig. 1 is a kind of based on the electrometric commercial car boarding Comfort Evaluation method flow diagram of flesh.
Specific implementation mode
This patent is specifically described below in conjunction with flow chart.
One kind being based on the electrometric commercial car boarding Comfort Evaluation method of flesh, includes the following steps：
Step 1: selecting several commercial car drivers as experimental subjects first.Simultaneous selection is got on or off the bus process body
Upper and lower limbs active to have an effect muscle as candidate test muscle group, simultaneously using multichannel physiograph myoelectricity test systematic survey
The state of activation of the candidate test muscle group of analysis.
The main primary efficacy of driver's upper limb when getting on or off the bus is to pull body, and body steadiness is helped to get on the bus, in order to
It whether appropriate evaluates the placement of vehicle armrest position, selects upper left cucullaris, left deltoid muscle, upper left ridge flesh, upper right cucullaris, the right side
The muscle of upper extremity group that intermediate cam flesh and upper right ridge flesh etc. are evaluated as lowering resistance；It is mainly risen for lower limb and alternately climbs stile
Effect, for evaluation vehicle level number and difference in height setting it is whether reasonable, select right tibialis anterior, left and right musculus soleus, a left side
The lower limb muscles group that right gastrocnemius, left and right rectus femoris, Zuo You hamstrings etc. are evaluated as lowering resistance.Therefore, by subject's upper limb
Upper left cucullaris, left deltoid muscle, upper left ridge flesh, upper right cucullaris, right intermediate cam flesh and upper right ridge flesh and lower limb a left side
Musculus soleus, right musculus soleus, left gastrocnemius, left rectus femoris, Zuo hamstrings, right gastrocnemius, right rectus femoris, You hamstring conducts
Candidate's test muscle group.
Electromyographic signal collection electrode slice is affixed on selected test muscle, two pieces of electrode slices are pasted on every piece of muscle, simultaneously
Each muscle should also choose a corresponding standard point, the node or the not no place of muscle that this point is muscle.Therefore each
Tested muscle should paste three electrode slices for measuring.Then multichannel physiograph myoelectricity is tested into system and electrode slice phase
Even.A piece of to be connected to standard point, other two panels are connected to muscle.
In conjunction with maximum spontaneous contractions (MVC) status criteriaization test posture of each piece of tested muscle, 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 mean value of 3 records is as calibration value.
Step 2: the candidate test muscle group to each subject carries out objective measurement, and count every piece of test of each subject
The activation degree of muscle tests after at least 3 times every subject and show that each piece of test muscle swashs in tested muscle group successively
Level average values living.
By commercial car car door opening to the action for utmostly, allowing subject to get on and off in such a way that it is most natural.
Record personnel will often climb up single order step as record node, the myoelectricity situation of change of the muscle between two nodes be recorded, to make
As a result more accurately this process is repeated 3 times, while to reduce the influence that muscular fatigue is brought, completes one-time continuous every time
Getting on and off should allow muscle recovery to rest when moving every 3-5min.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 mean value of measurement result is three times
For measured's muscle activation degree during boarding.By the activation degree mean value of the block muscle of all testers again into
Row is average, and resulting value is the muscle activation level average values.
Step 3: repeatedly measuring obtained average muscle according to every piece of test muscle of step 2 activates degree, to main flesh
Meat group selects.When selecting main muscle group, counts the average muscle that every piece of muscle of each test sample repeatedly measures and swash
Degree living, which is not all muscle of test, can all make a significant impact the evaluation of lowering resistance, if the activation journey of the block muscle
It spends overall average and is less than 10%, then assert that it is non-principal muscle group, reject the block muscle.Final determine is relaxed for commercial car boarding
The upper and lower limbs active of adaptive evaluation wants muscle group.
Step 4: being set to the weight of main muscle group.The quality of boarding comfort is the collaboration shadow in polylith muscle
What sound was made decision.For accurate evaluation boarding comfort, it should determine that every piece of muscle is to whole boarding comfort in major muscles group
Influence degree, calculate its weighted score according to the activation level average values repeatedly measured：
The average activation degree that each piece of muscle of upper limb is counted for selected main muscle group 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)；Similarly lower limb each piece of muscle
Averagely 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: determining boarding comfort function.After calculating weighted score according to step 4 quotient is obtained with formula respectively
With vehicle upper limb boarding comfort and lower limb boarding comfort.Summarize to obtain commercial car boarding Comfort Evaluation function.Step 4
In calculate separately out the weighted score a of every piece of muscle of upper limb1、a2、a3、…anAnd the weighted score b of every piece of muscle of lower limb1、
b2、b3、…bn, respectively commercial car upper limb boarding comfort f is obtained with following formula1And lower limb boarding comfort f2.And then really
It is final commercial car boarding Comfort Evaluation function to determine F, wherein x1、x2、x3、…xnFor the test of 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 values are smaller, then illustrate the commercial car boarding
Property it is better, i.e., the armrest positions of commercial car and level number and difference in height design it is more reasonable.
Claims (6)
1. one kind being based on the electrometric commercial car boarding Comfort Evaluation method of flesh, which is characterized in that include the following steps：
Step 1: select several commercial car drivers as subject, subject is selected to get on or off the bus the upper and lower limbs active of process body
Muscle of having an effect is candidate using each subject of multichannel physiograph myoelectricity test systematic survey as candidate test muscle group
Test the state of activation of each piece of test muscle of muscle group；
Step 2: counting the activation degree of every piece of test muscle of each subject, each piece of survey in muscle group is tested to every subject
The activation degree of examination muscle is averaged, and the activation level average values of the specific piece muscle of all subjects are taken mean value 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 the step 2, to each subject's
Major muscles group selects, if the activation degree overall average of certain block test muscle is less than the threshold value of setting, assert that it is
Non-principal muscle group rejects the block muscle, final to determine that the upper and lower limbs active for commercial car boarding Comfort Evaluation wants muscle group；
Step 4: the weight of the major muscles group selected to the step 3 is set；
Step 5: determining commercial car boarding Comfort Evaluation letter according to the weight of the calculated major muscles group of the step 4
Number.
2. as described in claim 1 a kind of based on the electrometric commercial car boarding Comfort Evaluation method of flesh, which is characterized in that
Selected in the step 1 subject get on or off the bus process body main muscle of having an effect as candidate test muscle group when, will be tested
Upper left cucullaris, left deltoid muscle, upper left ridge flesh, upper right cucullaris, right intermediate cam flesh and the upper right ridge flesh of person's upper limb, and under
Left musculus soleus, right musculus soleus, left gastrocnemius, left rectus femoris, Zuo hamstrings, right gastrocnemius, the right rectus femoris, You popliteal ropes of limb
Flesh is as candidate test muscle group.
3. as claimed in claim 2 a kind of based on the electrometric commercial car boarding Comfort Evaluation method of flesh, which is characterized in that
Each piece of survey of muscle group is tested in the step 1 using each subject candidate of polygraph myoelectricity test systematic survey
The detailed process of state of activation for trying muscle is：
Electromyographic signal collection electrode slice is affixed on selected test muscle, multichannel physiograph myoelectricity is then tested into system
It is connected with electrode slice；Posture is tested in conjunction with the maximum spontaneous contractions status criteriaization of each piece of tested muscle, to every piece of tested muscle
Maximum spontaneous contractions state is demarcated.
4. as described in claim 1 a kind of based on the electrometric commercial car boarding Comfort Evaluation method of flesh, which is characterized in that
The detailed process of the step 2 is：
By commercial car car door opening to the action for utmostly, allowing subject to get on and off, subject is often climbed up to a stage
Rank records the myoelectricity situation of change of the muscle between two nodes as record node, the above process is repeated several times, then in conjunction with mark
Fixed number is according to muscle activation degree during calculating boarding：Muscle activation degree=current muscle myoelectricity numerical value/muscle maximum is had an effect
When myoelectricity calibration value, the mean value of multiple measurement results is subject's muscle activation level average values during boarding, by institute
There are the activation level average values of the specified block muscle of tester to take mean value again, obtains the tested muscle activation level average values, according to
This mode obtains the muscle activation level average values of every piece of tested muscle.
5. as described in claim 1 a kind of based on the electrometric commercial car boarding Comfort Evaluation method of flesh, which is characterized in that
Weight setting includes in the step 4：
The average activation degree that each piece of muscle of upper limb is counted for selected main muscle group 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 described in claim 1 a kind of based on the electrometric commercial car boarding Comfort Evaluation method of flesh, which is characterized in that
The boarding comfort function that the step 5 determines is：
F=1/2 (f1+f2)
Wherein, f1For upper limb boarding comfort function, f1=a1x1+a2x2+a3x3+…+anxn；
f2For lower limb boarding comfort function, f2=b1y1+b2y2+b3y3+…+bnyn；
a1、a2、a3、…anFor the weighted score of every piece of muscle of upper limb；b1、b2、b3、…bnFor the weighted score of every piece of muscle of lower limb；
x1、x2、x3、…xnFor the test value of each piece of muscle activation degree of upper limb；y1、y2、y3、…ynFor each piece of muscle activation degree of lower limb
Test value.
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| CN108742609A (en) * | 2018-04-03 | 2018-11-06 | 吉林大学 | A kind of driver's lane-change Comfort Evaluation method based on myoelectricity and manipulation information |
| CN108742610A (en) * | 2018-04-03 | 2018-11-06 | 吉林大学 | A kind of realization myoelectricity and subjective associated steering Comfort Evaluation method |
| CN109000932B (en) * | 2018-06-15 | 2021-05-28 | 奇瑞汽车股份有限公司 | Wearable device for automobile dynamic performance evaluation and dynamic performance evaluation method |
| CN109211700A (en) * | 2018-10-31 | 2019-01-15 | 重庆长安汽车股份有限公司 | A kind of soft coating comfort test method and system |
| CN109760691B (en) * | 2019-03-18 | 2019-10-11 | 吉林大学 | It is a kind of consider electromyography signal driver comfort drive posture under the matched method of man-machine arrangement parameter |
| CN110426215B (en) * | 2019-07-16 | 2022-01-14 | 驭势（上海）汽车科技有限公司 | Model establishing method for vehicle ride comfort test and intelligent driving system |
| CN111522393A (en) * | 2020-05-12 | 2020-08-11 | 吉林大学 | Three-pedal adjusting mechanism based on leg surface electromyographic signals |
| CN111898205B (en) * | 2020-07-29 | 2022-09-13 | 吉林大学 | RBF neural network-based human-machine performance perception evaluation prediction method and system |
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