CN107449529A - A kind of leaf spring Cyclic Stress monitoring system and its method - Google Patents
A kind of leaf spring Cyclic Stress monitoring system and its method Download PDFInfo
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- CN107449529A CN107449529A CN201710647109.8A CN201710647109A CN107449529A CN 107449529 A CN107449529 A CN 107449529A CN 201710647109 A CN201710647109 A CN 201710647109A CN 107449529 A CN107449529 A CN 107449529A
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- 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
- G01L1/10—Measuring force or stress, in general by measuring variations of frequency of stressed vibrating elements, e.g. of stressed strings
- G01L1/106—Constructional details
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- 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
- G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
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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
- G01M13/00—Testing of machine parts
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- Alarm Systems (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of leaf spring Cyclic Stress monitoring system and its method, including carry out the Cyclic Stress monitoring device and human-computer interaction device of data interaction；Cyclic Stress monitoring device is arranged on leaf spring, including vibration acquisition portion, information treatment part, information storage part and alarm portion；Vibration acquisition portion be used to gathering in real time leaf spring because by external force effect and caused by vibration signal and be sent to information treatment part；Signal processing part is used to carry out vibration signal processing acquisition Cyclic Stress cumulative number and stored to information storage part, when Cyclic Stress cumulative number is more than or equal to Cyclic Stress threshold value, judge that leaf spring has reached weariness working state and to alarm portion output alarm signal, prompted by alarm portion.The system can automatically monitor and record leaf spring Cyclic Stress cumulative number, safeguarded for leaf spring and provide quantization reference, and to being alarmed using the leaf spring to transfinite, remind user to change in time to avoid the generation of security incident.
Description
Technical field
The invention belongs to leaf spring to monitor field, more particularly to a kind of leaf spring Cyclic Stress monitoring system and its method.
Background technology
Leaf spring is most widely used a kind of flexible member in automotive suspension, thick if it is but Length discrepancy wide by dry plate
Degree can be with equal, can also the spring beam of an approximately equi-strength that combines of unequal alloy spring piece.Leaf spring is in vapour
Car and engineering machinery field are widely used.As a kind of vehicle body load bearing component, the health status of leaf spring is fundamentally determined
The security performance of automobile and engineering machinery is determined.
For the loading characteristic of leaf spring, Impact direction is perpendicular to leaf spring, and in automobile and engineering machinery motion process,
Leaf spring bears dynamic alternate stress.With alternate stress circulative accumulation, fatigue rupture finally occurs in leaf spring, therefore leaf spring is
A kind of restricted lifetime part.In laboratory environments, fatigue limit and the generation of leaf spring can be obtained using fatigue experimental device
The number of pulsating stress is born during fatigue rupture, on this basis based on data statistics, certain model leaf spring can be obtained
Cyclic Stress threshold value.But in actual use, the operating mode of automobile and engineering machinery is more complicated, the life-span of leaf spring and row
Sail road conditions, whether overload, working condition, the driving habit etc. of driver many-sided closely related, complicated operating environment and work
Condition feature prevents the health status of leaf spring from accurately grasping.The plant maintenance majority to leaf spring is taken according to Years Of Service at present
The method changed, but if automobile and engineering machinery are using less in the defined time limit, great wave certainly will be caused
Take., whereas if automobile and engineering machinery are frequently used, leaf spring cannot but be changed in time, then major safety risks be present.
Patent " a kind of fatigue load experimental rig of leaf springs of car " (application number：201610835736.X) disclose one kind
Leaf spring fatigue experimental device under laboratory environment, rather than the real time on-line monitoring device towards leaf spring health status；It is and special
Sharp " steel leaf spring with stress analysis function " (application number：201220345055.2) disclose it is a kind of with stress analysis function
Novel steel leaf spring, improves the stress ability to bear of leaf spring, but and is not concerned with the health status of leaf spring.Therefore, there is an urgent need to develop
Go out a kind of leaf spring Cyclic Stress monitoring system, to leaf spring stress-number of cycles carry out real time on-line monitoring, and with laboratory bar
Measured Cyclic Stress threshold value is compared under part, and to making anticipation when the state of front plate spring, the leaf spring of limit is recycled to stress
Changed in time, so as to avoid the generation of security incident.Meanwhile the monitoring of leaf spring Cyclic Stress can also be used as automobile and engineering
One kind reflection directly perceived of mechanical work regime history.
The content of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of leaf spring Cyclic Stress monitoring system, and it can be supervised
Survey and work as the number that front plate spring bears pulsating stress, and compared with the Cyclic Stress threshold value that leaf spring can bear, for using
The leaf spring to transfinite is alarmed, and reminds user to change to avoid the generation of security incident it in time.
A kind of leaf spring Cyclic Stress monitoring system of the present invention, including：Carry out the Cyclic Stress monitoring device of data interaction
And human-computer interaction device；The Cyclic Stress monitoring device is arranged on leaf spring, including vibration acquisition portion, information treatment part, letter
Cease storage part and alarm portion；The vibration acquisition portion be used in real time gather leaf spring because by external force effect and caused by vibration signal simultaneously
It is sent to information treatment part；The signal processing part is used to carry out vibration signal processing acquisition Cyclic Stress cumulative number and deposited
Storage, when the Cyclic Stress cumulative number is more than or equal to Cyclic Stress threshold value, judges that leaf spring has reached to information storage part
Weariness working state and to alarm portion output alarm signal, alarm is carried out by alarm portion.
Wherein, Cyclic Stress threshold value is under experimental conditions, by carrying out fatigue in fact to a number of same model leaf spring
The leaf spring for testing acquisition occurs 90% of stress-number of cycles during fatigue rupture.
Further, the signal processing part includes filtration module and Cyclic Stress cumulative number acquisition module, the filter
Ripple module is used for the low-pass filtered removal high-frequency signal therein of vibration signal to receiving, the Cyclic Stress cumulative number
Acquisition module, for obtaining Cyclic Stress cumulative number to filtered vibration signal based on zero passage detection algorithm.
The present invention is by the low-pass filtered removal high-frequency signal therein of the vibration signal received, and then output low frequency vibrates
Signal；After filtering out high-frequency signal, Cyclic Stress cumulative number directly can be obtained by zero passage detection algorithm, i.e. low-frequency vibration is believed
Number waveform become negative by positive every time, or become timing by negative, stress-number of cycles accumulates once, and generates Cyclic Stress cumulative number.
Further, described information storage part is additionally operable to storage monitoring initial time, Cyclic Stress threshold value and leaf spring model.
Wherein, the monitoring initial time is that Cyclic Stress monitoring device is arranged on progress Cyclic Stress monitoring on leaf spring
Initial time.
Further, the Cyclic Stress monitoring device also includes power suppling part, and the power suppling part is used for for institute
The need electricity portion for stating Cyclic Stress monitoring device provides power supply supply.
Wherein, the need electricity portion of the Cyclic Stress monitoring device includes vibration acquisition portion, information treatment part, information storage
Portion, wireless communication part and alarm portion.
Further, the power suppling part includes battery and power supply modulate circuit.
Further, the Cyclic Stress monitoring device also includes wireless communication part, the wireless communication part with signal
Reason portion is connected, and the wireless communication part is used to be responsible for carrying out the data interaction based on radio communication with human-computer interaction device.
Further, the wireless communication part is bluetooth module or Wifi modules.
Further, the human-computer interaction device provides man-machine data interaction connection interface, passes through the wireless communication part
Leaf spring Cyclic Stress monitoring information is received, and shows above- mentioned information；Leaf spring Cyclic Stress monitoring information adds up including Cyclic Stress
Number, monitoring initial time, Cyclic Stress threshold value, leaf spring type information, human-computer interaction device also provide monitoring initial time, answered
Power cycle threshold, the user of leaf spring type information edit input interface.
Present invention also offers the method for work of described leaf spring Cyclic Stress monitoring system.
The method of work of the leaf spring Cyclic Stress monitoring system of the present invention, including：
The vibration acquisition portion of Cyclic Stress monitoring device gather in real time leaf spring because by external force effect and caused by vibration signal
And it is sent to information treatment part；Signal processing part carries out processing to vibration signal and obtains Cyclic Stress cumulative number, the stress
Circulation cumulative number is stored in information storage part, by the Cyclic Stress cumulative number compared with Cyclic Stress threshold value, currently
When person is more than or equal to the latter, judge that leaf spring has reached weariness working state and to alarm portion output alarm signal, by alarm portion
Carry out alarm；
Cyclic Stress cumulative number obtain method be：Vibration signal is low-pass filtered to remove high-frequency signal therein, enters
And output low frequency vibration signal；For low-frequency vibration signal, Cyclic Stress cumulative number is obtained using zero passage detection algorithm, that is, worked as
When the waveform of low-frequency vibration signal is from just half circumferential negative half period (or from negative half period to positive half cycle) conversion and through zero crossing, respective panels
Spring bears one cycle stress, and the pulsating stress each time counted from monitoring initial time is added up, has just obtained institute
State Cyclic Stress cumulative number.
Further, this method also uses human-computer interaction device proof stress circulatory monitoring device, works as human-computer interaction device
When being connected with monitor for stress, the information that alarm is carried out by alarm portion can be sent to human-computer interaction device, use
It is changed to avoid the generation of security incident in time in reminding user.
Further, when data interaction is carried out between Cyclic Stress monitoring device and human-computer interaction device, man-machine interaction
Device sends leaf spring Cyclic Stress monitoring information write request to Cyclic Stress monitoring device, Cyclic Stress state monitoring apparatus
Wireless communication part receives the request, and transfers to information treatment part to be stored in information storage part, stores successfully post-processing portion coordination
Wireless communication part returns to write-in successful result to human-computer interaction device, otherwise returns to write-in failure result；
Leaf spring Cyclic Stress monitoring information read requests are sent to Cyclic Stress monitoring device by human-computer interaction device, should
The wireless communication part of power recurrent state monitoring device receives the request, and transfers to information treatment part to read information storage part storage
Cyclic Stress monitoring information, the successfully post-processing portion that reads coordinate wireless communication part and return to leaf spring stress to human-computer interaction device
Circulatory monitoring information, otherwise return and read failure result.
Compared with prior art, the beneficial effects of the invention are as follows：
Leaf spring Cyclic Stress monitoring system provided by the invention can automatically monitor and record leaf spring Cyclic Stress accumulative time
Number, compact, is easily installed, and can be that leaf spring is changed and maintenance provides specific quantization reference, while can be used as automobile
With engineering machinery regime history one kind indirectly reflection, so as to for the other equipment of automobile and engineering machinery safeguard provide refer to according to
According to.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.
Fig. 1 is a kind of schematic diagram of embodiment one of leaf spring Cyclic Stress monitoring system of the present invention.
Fig. 2 is a kind of schematic diagram of embodiment two of leaf spring Cyclic Stress monitoring system of the present invention.
Fig. 3 is leaf spring Cyclic Stress monitoring device information treatment part vibration signal processing flow chart.
Fig. 4 is leaf spring Cyclic Stress monitoring device Cyclic Stress monitoring flow chart.
Fig. 5 is human-computer interaction device and the interworking flow figure of Cyclic Stress monitoring device.
Embodiment
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Fig. 1 is a kind of schematic diagram of leaf spring Cyclic Stress monitoring system embodiment one of the present invention.
As shown in figure 1, a kind of leaf spring Cyclic Stress monitoring system of the present invention, including：
Carry out the Cyclic Stress monitoring device and human-computer interaction device of data interaction；The Cyclic Stress monitoring device installation
On leaf spring, including vibration acquisition portion, information treatment part, information storage part and alarm portion；The vibration acquisition portion is used for real-time
Collection leaf spring because by external force effect and caused by vibration signal and be sent to information treatment part；The signal processing part is used for shaking
Dynamic signal carries out processing and obtains Cyclic Stress cumulative number and store to information storage part, when the Cyclic Stress cumulative number is big
When Cyclic Stress threshold value, judge that leaf spring has reached weariness working state and to alarm portion output alarm signal, by reporting
Police portion carries out alarm.
Fig. 2 is a kind of schematic diagram of leaf spring Cyclic Stress monitoring system embodiment two of the present invention.
As shown in Fig. 2 the present invention a kind of leaf spring Cyclic Stress monitoring system, including Cyclic Stress monitoring device with it is man-machine
Interactive device, both carry out data interaction by radio communication.
The Cyclic Stress monitoring device is arranged on leaf spring, including vibration acquisition portion, information treatment part, information storage
Portion, wireless communication part, alarm portion and power suppling part, the wireless communication part are responsible for being based on radio communication with human-computer interaction device
Data interaction is carried out, the power suppling part needs electric portion to provide power supply supply, the vibration acquisition for Cyclic Stress monitoring device
Portion gather in real time leaf spring because by external force effect and caused by vibration signal and be sent to information treatment part, described information processing unit pair
Vibration signal carries out processing and obtains Cyclic Stress cumulative number, information storage part is saved to, when the Cyclic Stress adds up
When number is more than or equal to Cyclic Stress threshold value, judge that leaf spring has reached weariness working state and exported alarm signal to alarm portion
Number, alarm, described information storage part storage leaf spring Cyclic Stress monitoring information are carried out by alarm portion.
The leaf spring Cyclic Stress monitoring information includes Cyclic Stress cumulative number, monitoring initial time, Cyclic Stress threshold
Value, leaf spring type information.The monitoring initial time is that Cyclic Stress monitoring device is installed to progress Cyclic Stress prison on leaf spring
The initial time of survey, the Cyclic Stress threshold value are under experimental conditions, by tired to a number of same model leaf spring progress
The leaf spring that labor experiment obtains occurs 90% of stress-number of cycles during fatigue rupture.
The Cyclic Stress monitoring device needs electric portion to include vibration acquisition portion, information treatment part, information storage part, channel radio
Letter portion and alarm portion.
The wireless communication part is connected with signal processing part, communication can be Bluetooth communication or
WiFi communication, accordingly, the wireless communication part can be bluetooth communication or WiFi communication module.
The power suppling part includes battery and power supply modulate circuit.
After described information processing unit obtains Cyclic Stress cumulative number, by its Cyclic Stress threshold with information storage part storage
Value is compared, if Cyclic Stress cumulative number is more than Cyclic Stress threshold value, audible alarm is carried out by alarm portion, and in people
Actively alarmed when machine interactive device carries out data interaction by radio communication and Cyclic Stress monitoring device to human-computer interaction device.
The human-computer interaction device provides man-machine data interaction connection interface, and receiving leaf spring stress by wireless communication part follows
Ring monitoring information, and above- mentioned information is shown, the human-computer interaction device also provides monitoring initial time, Cyclic Stress threshold value, plate
The user of spring type information edits input interface.
In the present embodiment, the vibration acquisition portion of Cyclic Stress monitoring device selects MPU 0605, specifically, can also use
Other vibrating sensors；In order to reduce small product size, reduce power consumption, in the present embodiment information treatment part, information storage part, nothing
Line communication unit uses the CC2650 system on chip chips of TI companies, wherein integrated function of Bluetooth communication, wireless communication part lead to
The Bluetooth communication for crossing CC2650 is realized；Power suppling part is powered using CR2032 button cells, corresponding power supply conditioning electricity
The design on road belongs to general technology in the industry.
In the present embodiment, human-computer interaction device hardware uses Android smartphone or tablet personal computer, based on software programming
Carry out the design at man-machine data interaction interface and the data interaction based on radio communication realizes that relevant design belongs to software generic
Technology.
Fig. 3 is leaf spring Cyclic Stress monitoring device information treatment part vibration signal processing flow chart.
Described information processing unit carries out processing to vibration signal and obtains Cyclic Stress cumulative number, and its specific implementation is to connect
The low-pass filtered removal high-frequency signal therein of vibration signal received, and Cyclic Stress is obtained based on zero passage detection algorithm and added up
Number.
The present invention is by the low-pass filtered removal high-frequency signal therein of the vibration signal received, and then output low frequency vibrates
Signal；After filtering out high-frequency signal, Cyclic Stress cumulative number directly can be obtained by zero passage detection algorithm, i.e., waveform every time by
When positive change is born, stress-number of cycles accumulates once.
Present invention also offers the method for work of leaf spring Cyclic Stress monitoring system.
Fig. 4 is leaf spring Cyclic Stress monitoring device Cyclic Stress monitoring flow chart.
As shown in figure 4, after Cyclic Stress monitoring device is installed on leaf spring, the automatic leaf spring stress that carries out in unattended ground follows
Ring monitors, and specific workflow is：Information treatment part reads the Cyclic Stress threshold value of information storage part storage, and then passes through vibration
Collection portion gathers vibration signal, and then information treatment part carries out processing to vibration signal and obtains stress-number of cycles, and then will letter
The stress-number of cycles for ceasing storage part storage carries out Accumulating generation Cyclic Stress cumulative number, now if Cyclic Stress is accumulative secondary
Number exceed Cyclic Stress threshold value, then by alarm portion carry out audible alarm, it is on the contrary then continue cycling through perform gather vibration signal, obtain
Take Cyclic Stress cumulative number and the deterministic process whether to transfinite.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Fig. 5 is human-computer interaction device and the interworking flow figure of Cyclic Stress monitoring device.
Realized as shown in figure 5, people connects interactive device with data interaction of the Cyclic Stress monitoring device based on radio communication, bag
Include：
Human-computer interaction device is based on radio communication progress data interaction, particularly user with Cyclic Stress monitoring device and entered
When row Cyclic Stress state monitoring apparatus is installed, leaf spring stress is sent to Cyclic Stress monitoring device by human-computer interaction device and followed
Ring monitoring information write request, the wireless communication part of Cyclic Stress state monitoring apparatus receives the request, and transfers to information processing
Portion is stored in information storage part, and the successfully post-processing portion that stores coordinates wireless communication part and write successfully to human-computer interaction device return
As a result, write-in failure result is otherwise returned.
When user needs to read the leaf spring Cyclic Stress monitoring information of Cyclic Stress monitoring device, pass through human-computer interaction device
To Cyclic Stress monitoring device send leaf spring Cyclic Stress monitoring information read requests, Cyclic Stress state monitoring apparatus it is wireless
Communication unit receives the request, and transfers to information treatment part to read the leaf spring Cyclic Stress monitoring information of information storage part storage, reads
Take successfully post-processing portion to coordinate wireless communication part and return to leaf spring Cyclic Stress monitoring information to human-computer interaction device, otherwise return
Retaking of a year or grade takes failure result.
Claims (10)
- A kind of 1. leaf spring Cyclic Stress monitoring system, it is characterised in that including：Carry out the Cyclic Stress monitoring device of data interaction And human-computer interaction device；The Cyclic Stress monitoring device is arranged on leaf spring, including vibration acquisition portion, information treatment part, letter Cease storage part and alarm portion；The vibration acquisition portion be used in real time gather leaf spring because by external force effect and caused by vibration signal simultaneously It is sent to information treatment part；The signal processing part is used to carry out vibration signal processing acquisition Cyclic Stress cumulative number and deposited Storage, when the Cyclic Stress cumulative number is more than or equal to Cyclic Stress threshold value, judges that leaf spring has reached to information storage part Weariness working state and to alarm portion output alarm signal, alarm is carried out by alarm portion.
- 2. a kind of leaf spring Cyclic Stress monitoring system as claimed in claim 1, it is characterised in that the signal processing part includes Filtration module and Cyclic Stress cumulative number acquisition module, the filtration module are used for the vibration signal received through low pass filtered Ripple removes high-frequency signal therein, the Cyclic Stress cumulative number acquisition module, for based on zero passage detection algorithm to filtering Vibration signal afterwards obtains Cyclic Stress cumulative number.
- 3. a kind of leaf spring Cyclic Stress monitoring system as claimed in claim 1, it is characterised in that described information storage part is also used In storage monitoring initial time, Cyclic Stress threshold value and leaf spring model.
- A kind of 4. leaf spring Cyclic Stress monitoring system as claimed in claim 1, it is characterised in that the Cyclic Stress monitoring dress Putting also includes wireless communication part, and the wireless communication part is connected with signal processing part, and the wireless communication part is used to be responsible for and people Machine interactive device carries out the data interaction based on radio communication.
- 5. a kind of leaf spring Cyclic Stress monitoring system as claimed in claim 4, it is characterised in that the wireless communication part is indigo plant Tooth module or Wifi modules.
- A kind of 6. leaf spring Cyclic Stress monitoring system as claimed in claim 1, it is characterised in that the Cyclic Stress monitoring dress Putting also includes power suppling part, and the power suppling part is used to provide power supply confession for the need electricity portion of the Cyclic Stress monitoring device Give, the power suppling part includes battery and power supply modulate circuit.
- 7. a kind of leaf spring Cyclic Stress monitoring system as claimed in claim 4, it is characterised in that the human-computer interaction device carries For man-machine data interaction connection interface, leaf spring Cyclic Stress monitoring information is received by the wireless communication part, and show above-mentioned Information；Leaf spring Cyclic Stress monitoring information includes Cyclic Stress cumulative number, monitoring initial time, Cyclic Stress threshold value, leaf spring Type information, human-computer interaction device also provides monitoring initial time, Cyclic Stress threshold value, the user of leaf spring type information edit it is defeated Incoming interface.
- 8. a kind of method of work of the leaf spring Cyclic Stress monitoring system based on as any one of claim 1-7, it is special Sign is, including：The vibration acquisition portion of Cyclic Stress monitoring device gather in real time leaf spring because by external force effect and caused by vibration signal and pass Deliver to information treatment part；Signal processing part carries out processing to vibration signal and obtains Cyclic Stress cumulative number, the Cyclic Stress Cumulative number is stored in information storage part, by the Cyclic Stress cumulative number compared with Cyclic Stress threshold value, when the former is big When the latter, judge that leaf spring has reached weariness working state and to alarm portion output alarm signal, carried out by alarm portion Alarm；When human-computer interaction device is connected with monitor for stress, the information that alarm is carried out by alarm portion can To be sent to human-computer interaction device, for reminding user to change to avoid the generation of security incident it in time.
- 9. the method for work of leaf spring Cyclic Stress monitoring system as claimed in claim 8, it is characterised in that the signal transacting Portion, which carries out processing acquisition Cyclic Stress cumulative number to vibration signal, to be included：Vibration signal is low-pass filtered to remove high-frequency signal therein, and then output low frequency vibration signal；Believe for low-frequency vibration Number, Cyclic Stress cumulative number is obtained using zero passage detection algorithm, i.e., when the waveform of low-frequency vibration signal circumferentially bears half from just half Week（Or from negative half period to positive half cycle）Conversion and during through zero crossing, corresponding leaf spring bears one cycle stress, to from monitoring The pulsating stress each time that time beginning is counted is added up, and generates the Cyclic Stress cumulative number.
- 10. the method for work of leaf spring Cyclic Stress monitoring system as claimed in claim 8, it is characterised in that in Cyclic Stress When data interaction is carried out between monitoring device and human-computer interaction device, human-computer interaction device is to Cyclic Stress monitoring device transmission board Spring Cyclic Stress monitoring information write request, the wireless communication part of Cyclic Stress state monitoring apparatus receives the request, and transfers to Information treatment part is stored in information storage part, and the successfully post-processing portion that stores coordinates wireless communication part and returned to human-computer interaction device Successful result is write, otherwise returns to write-in failure result；Leaf spring Cyclic Stress monitoring information read requests are sent to Cyclic Stress monitoring device by human-computer interaction device, stress follows The wireless communication part of ring status monitoring device receives the request, and transfers to information treatment part to read the leaf spring that information storage part stores Cyclic Stress monitoring information, the successfully post-processing portion that reads coordinate wireless communication part and return to leaf spring stress to human-computer interaction device Circulatory monitoring information, otherwise return and read failure result.
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| CN201710647109.8A CN107449529B (en) | 2017-08-01 | 2017-08-01 | Leaf spring stress cycle monitoring system and method thereof |
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| CN201710647109.8A CN107449529B (en) | 2017-08-01 | 2017-08-01 | Leaf spring stress cycle monitoring system and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440910A (en) * | 2019-08-22 | 2019-11-12 | 西门子工厂自动化工程有限公司 | Vibration monitoring method, apparatus, drive system, industrial control equipment and storage medium |
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| 康百川，何云峰: "《基于整车钢板弹簧疲劳分析及创新性板簧疲劳试验台架设计》", 《汽车实用技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440910A (en) * | 2019-08-22 | 2019-11-12 | 西门子工厂自动化工程有限公司 | Vibration monitoring method, apparatus, drive system, industrial control equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107449529B (en) | 2020-05-05 |
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