CN109307601A - A kind of vehicle braking ability wireless detecting system - Google Patents
A kind of vehicle braking ability wireless detecting system Download PDFInfo
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- CN109307601A CN109307601A CN201810368194.9A CN201810368194A CN109307601A CN 109307601 A CN109307601 A CN 109307601A CN 201810368194 A CN201810368194 A CN 201810368194A CN 109307601 A CN109307601 A CN 109307601A
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- motor vehicle
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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
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention patent discloses a kind of vehicle braking ability wireless detecting system, the system is by acquisition module, conditioning module, wireless transport module, analysis and processing module, the most of composition of human-computer interaction module five, for the field test of motor vehicle brake performance in field, braking distance is measured, mechanism analysis of fatigue, risk profile and signal processing are integrated in detection system, the key parameter generated in equipment running process and early warning position are fed back into staff by human-computer interaction interface, and standard is customized for testing result, judge security level, for detection unit as maintenance of equipment judgment basis.
Description
Technical field
The invention patent relates to motor vehicle detecting technical fields in field, more specifically, the invention patent relates to a kind of vehicles
Braking ability wireless detecting system.
Background technique
China's industrial expansion paces are constantly accelerated, and the motor vehicles of various types enterprise are also increasingly increasing, motor vehicle
Application range also expand constantly.Private motor vehicle transport is important in the modernization of China's industry in
Status is also more and more obvious.The interior private motor vehicle of so-called field (factory) refers to other than road traffic, agri-vehicle only in work
The private motor vehicle that the specific regions such as plant area of factory, tourist attraction, recreation ground use, including powered industrial truck and off-highway
With go sightseeing vehicle traveling, by power device drive or draw, maximum travelling speed (design value) be greater than 5 kilometers/hour or
Motor vehicles with equipments such as raising, stacking, revolution, overturnings.Such as counterbalanced lift truck, reach truck, side formula
Fork truck, lift truck with straddle outeriggers, pallet stacking car and three-dimensional carrier-and-stacker, off-highway vista car etc..With production-scale expansion
Greatly, the raising of the degree of automation, in field motor vehicle during modern production using increasingly wider, act on it is more and more big, and
The continuous of international market demand amount increases the development for more promoting this field.Motor vehicle is also changed towards structure is complicated in, if
Standby enlargement, control system, which becomes increasingly complex, waits directions to develop.
However motor vehicle is while being widely applied in field, also along with a series of safety problem.Although country's labour
Earlier than " vehicle maneuvering safety in plant Security Administration " has been approved April nineteen ninety-five, which is intended to reinforce motor vehicle in factory in portion
Safety monitor work, reduce because vehicle maneuvering safety in plant management, Operation and Maintenance maintenance be not good at caused by casualty accident, protect
Hinder the safety of worker in process of production.But currently, private motor vehicle examines situation not in the field of each business unit
Equally, work specific reliable examination criteria and detection method not yet are examined especially for motor vehicle in field, so as to cause
There are certain hidden danger for private motor vehicle safe operation in, cause a series of motor vehicles traffic accident.Therefore, change
The detection status of private motor vehicle in China, reinforces the management of safe operation of private motor vehicle in field, advantageously ensures that
The driving safety of private motor vehicle in, reduces the traffic accident of haulage vehicle in Chinese Enterprises, can make the labour of enterprise
Productivity greatly improves, and increases the economic benefit of enterprise, more directly influences the normal production development of enterprise, and the life of worker is steady
Fixed and national wealth safety.
Summary of the invention
The purpose of the invention patent is in view of the above-mentioned problems, by braking process measurement, mechanism analysis of fatigue, wireless transmission side
Formula and signal processing are integrated in system of the invention, the key parameter that will be generated in equipment running process by display window
Staff is fed back to early warning position, and customizes standard for testing result, security level is judged, for using unit as equipment
Repair judgment basis.
The one aspect of patent according to the present invention provides a kind of vehicle braking ability wireless detecting system.
As in a first aspect, a kind of vehicle braking ability wireless detecting system, the system by acquisition module, conditioning module,
The most of composition of wireless transport module, analysis and processing module, human-computer interaction module five, for motor vehicle brake performance in field
Braking distance measurement, mechanism analysis of fatigue, risk profile and signal processing are integrated in detection system by field test, are led to
It crosses human-computer interaction interface and the key parameter generated in equipment running process and early warning position is fed back into staff, and be detection
As a result standard is customized, judges security level, for detection unit as maintenance of equipment judgment basis.
With reference to first aspect, the first situation in the possible implementation of first aspect is the acquisition module
For the acquisition of following 7 item data: (1) acceleration detection: real-time monitoring motor vehicle running braking acceleration, in brake pedal plate
Step on beginning collecting signal, when release stops collecting.According to real time acceleration processing result and national regulation average retardation rate
(MFDD) Comparison of standards determines motor vehicle braking ability；(2) braking distance detects: by long range laser ranging, accurately measuring
Automobile braking distance in, and compared with state-set standard；(3) Bus- Speed Monitoring: pass through sensor measuring car wheel speed, monitoring
Velocity variations after automobile braking；(4) ground line gradient detects: before braking performance test starts, the measurement experiment place gradient, as detection
Report one of reference frame；(5) pedal free stroke detects: when service brake, free walker that real-time monitoring brake pedal is stepped on
Journey, if meet the requirement of national regulation；(6) brake pedal stress mornitoring: when monitoring service brake, car is in standard load
Under, whether the stress of brake pedal is within 700N；(7) parking brake stress mornitoring: whether detection parking handle pulling force can satisfy
The needs of parking driving, the pulling force of handle have to control within 300N；
With reference to first aspect, the second situation in the possible implementation of first aspect is the wireless transmission mould
Block uses Zigbee wireless protocols, is based on IEEE.802.15.4 standard, the quickly networking of point to multi--point may be implemented.Wirelessly
EndDivice (network terminal) obtains the collected data of sensor by 12 AD inside JN5139 in sensing network, and will
After the converted device ADC sampling of the on-site signal of capture, quantization, coding, becomes digital signal and be transmitted to microprocessor, via FFD
(Router router) wireless transmission, is transmitted to Coordinator (coordinator), and Coordinator utilizes RS-232 communication interface
It is communicated with host computer.Each wireless router can be responsible for the data forwarding of 1-16 wireless data acquisition module, finally by data
Host computer is forwarded to be stored and analyzed.Wireless data acquisition module is tidal data recovering and fusion center, multiple end nodes
The data information that transmission comes is collected, then analysis processing and storage are sent to monitoring center by local area network.
With reference to first aspect, the third situation in the possible implementation of first aspect is that the analysis handles mould
Root tuber compares, building inspection according to the experimental result of the true braking effect of motor vehicle in reacting field with detected each physical quantity mapping
Survey performance standard library.Sorted generalization is carried out for the purposes, weight of motor vehicle, braking principle in field, in conjunction with braking assessment result
With dynamic test data, the safety evaluatio parameter and criterion of motor vehicle braking systems in field are studied.
With reference to first aspect, the 4th kind of situation in the possible implementation of first aspect is the human-computer interaction mould
Block develops mating application program on the hardware foundation of three proofings plate, through VC++, and data real-time display, data are divided in real time
Analysis, result real-time display, real-time message early warning, generation achieve the functions such as report, historical record inquiry and integrate wherein.
The technology of the present invention effect is: being easy to use, is suitble to factory's large batch of real-time monitoring on the spot, more saving manpower
Material resources；Effective early warning, the security of the lives and property of support personnel can be carried out to the safety accident that may occur；It is single compared to traditional
Solely distance detection, as a result more true and accurate, more reference significance；Improve in the field that lacks always the loophole of motor vehicle detecting with
Standard lacks.
Detailed description of the invention
Fig. 1 is system hardware flow chart of the invention；
Fig. 2 is front-end software surface chart of the invention；
Fig. 3 is system hardware flow chart of the invention；
Fig. 4 is software flow figure of the invention；
Fig. 5 is sensor of the invention placement position schematic diagram；
Fig. 6 is wireless transmission method schematic diagram of the invention；
Fig. 7 is background acquisition programme diagram of the invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology and equipment known to person of ordinary skill in the relevant may be not discussed in detail, but in appropriate situation
Under, the technology and equipment should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
As shown in Figure 1, Fig. 1 system hardware flow chart；Each physical quantity of sensor data become number into A/D conversion is crossed
Signal is measured, into master control system, master control system carries out Data Management Analysis, and the input of user key-press number, man-machine interface is liquid crystal
Display screen, Fig. 2 are front-end software surface chart, this is the display interface of user's human-computer interaction, including inclination angle, parking brake power, foot pedal
The display interface of the data such as power, speed, acceleration.
The external brake pedal switch of instrument, tri- axis degree acceleration transducer of ICP acquires member as acceleration as built in PCB
Part starts to acquire acceleration after brake pedal is stepped on, and the acceleration collected is converted using A/D and converts analog signal
Digital filtering is carried out at digital signal, then with FPGA, high-frequency signal is filtered off, carries out signal integration processing and operation, root again later
The braking ability of automobile is judged according to national standard and the results are shown on liquid crystal display, hardware pipeline figure such as Fig. 3 of the system
It is shown.
Fig. 4 software flow figure: software carries out aligning in use, after starting, and then measured object is run, and accelerates
Degree sensor starts to acquire, and collected physical quantity data carry out FIR filtering, realizes denoising effect.Following integral operation, is changed
Calculation obtains speed data, finally compares obtained acceleration, speed data and national standard, judges whether qualification, and will inspection
It surveys as the result is shown to user.
Specific steps are as follows: starting instrument first, the correction of position is carried out, one is generated when driver steps on pedal
A level signal, initial signal of the signal as signal acquisition start to acquire acceleration signal, the acquisition knot when pedal unclamps
Beam.After all be measured, signal will all be sent to terminal, convert each physics for measured electric signal correspondence
Signal, and storage is carried out to characteristic quantity by man-machine interface and shows and (is developed by VC++ platform), aspect testing staff uses.
Meanwhile secure threshold is arranged in system, when a certain physical quantity exceeds secure threshold, system provides Realtime Alerts, prompts supervisor
First time, establishment officer took corresponding measure.Security performance assessing is according to equipment inherent structure parameter and measures (current
With history) physical signal, the security control report of test object is provided, testing staff is periodically right according to actual use data
Its safe condition carries out comprehensive assessment, provides corresponding test result.
Fig. 5 is sensor placement position view: by taking the fork truck in field as an example, 7 data acquire measuring point in the system
Installation site explanation on motor vehicle.Acquisition of the system mainly for following 7 item data: (1) acceleration detection: real-time monitoring
Motor vehicle running braking acceleration steps on beginning collecting signal in brake pedal plate, and when release stops collecting.Accelerated according to real-time
It spends processing result and national regulation average retardation rate (MFDD) Comparison of standards determines motor vehicle braking ability；(2) braking distance is examined
It surveys: by long range laser ranging, accurately measuring automobile braking distance in field, and compare with state-set standard；(3) speed
Detection: by sensor measuring car wheel speed, velocity variations after automobile braking are monitored；(4) ground line gradient detects: braking performance test is opened
Before beginning, the measurement experiment place gradient, as one of examining report reference frame；(5) pedal free stroke detects: service brake
When, free travel that real-time monitoring brake pedal is stepped on, if meet the requirement of national regulation；(6) brake pedal stress mornitoring:
When monitoring service brake, car is under standard load, and whether the stress of brake pedal is within 700N；(7) parking brake stress mornitoring:
Whether detection parking handle pulling force can satisfy the needs of parking driving, and the pulling force of handle has to control within 300N；
Fig. 6 is wireless transmission method schematic diagram: by Labview platform building, it is wireless to realize that collected data are implemented
It is transmitted to local area network, outer net, and shared with multiple equipment.Wireless transport module uses Zigbee wireless protocols, is based on
The quickly networking of point to multi--point may be implemented in IEEE.802.15.4 standard.(network is whole by EndDivice in wireless sensor network
End) by 12 AD acquisition collected data of sensor inside JN5139, and the converted device ADC of the on-site signal of capture is adopted
After sample, quantization, coding, become digital signal and be transmitted to microprocessor, is wirelessly transferred, is transmitted to via FFD (Router router)
Coordinator (coordinator), Coordinator are communicated using RS-232 communication interface with host computer.
In use, each distributed apparatus is placed in the equipment for needing to monitor, it is (wireless that an equipment is arranged to AP
Access point), other equipment are arranged to Client (client only receives), and all devices vibration data all transmits and leads to simultaneously
It crosses AP and is wirelessly passed to host computer.Fig. 7 is background acquisition programme diagram: developing data acquisition program by labview, is backstage in figure
Programme diagram significantly embodies the transmission and processing process of each data.
Finally according to the experimental result of the true braking effect of motor vehicle in energy reacting field, mapped with detected each physical quantity
Comparison constructs detection performance java standard library.Sorted generalization is carried out for the purposes, weight of motor vehicle, braking principle in field, in conjunction with system
Dynamic assessment result and dynamic test data, study the safety evaluatio parameter and criterion of motor vehicle braking systems in field.
System detection index is as shown in the table:
| Measurement index | Measurement range | Measurement Resolution | Measurement accuracy |
| Acceleration | ±490.5m/s2 | 0.059m/s2 | ± 3% |
| Braking distance | 0-100mm | 1cm | 0.05% |
| Speed | 100km/h | 0.01km/h | 0.2km/h |
| Ground line gradient | ±30° | 0.01° | ± 1% |
| Pedal free stroke | 0-200mm | 1mm | ± 2% |
| Brake pedal stress | 0-980N | 0.1N | ± 1% |
| Parking brake stress | 0-490N | 0.1N | ± 1% |
The difference of the various embodiments described above primary focus description and other embodiments, but those skilled in the art should be clear
Chu, the various embodiments described above can according to need exclusive use or are combined with each other.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that above example merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (5)
1. a kind of vehicle braking ability wireless detecting system, the system by acquisition module, conditioning module, wireless transport module, point
Analyse the most of composition of processing module, human-computer interaction module five；By braking distance measurement, mechanism analysis of fatigue, risk profile and
Signal processing is integrated in the detection system, by human-computer interaction interface by the key parameter generated in equipment running process with
Early warning position feeds back to staff, and customizes standard for testing result, judges security level.
2. a kind of vehicle braking ability wireless detecting system according to claim 1, it is characterised in that the acquisition module
For the acquisition of following 7 item data: (1) acceleration detection: real-time monitoring motor vehicle running braking acceleration accelerates according to real-time
It spends processing result and preset standard comparison determines motor vehicle braking ability；(2) braking distance detects: passing through long range laser ranging
Automobile braking distance, and compared with preset standard；(3) Bus- Speed Monitoring: by sensor measuring car wheel speed, motor vehicle system is monitored
Velocity variations after dynamic；(4) ground line gradient detects: the ground line gradient of measurement motor vehicle braking distance；(5) pedal free stroke is examined
It surveys: the free travel that real-time monitoring brake pedal is stepped on, and compared with preset standard；(6) brake pedal stress mornitoring: monitoring row
When vehicle is braked, motor vehicle is under standard load, and whether the stress of brake pedal is within preset standard；(7) parking brake stress mornitoring:
Whether detection parking handle pulling force is within preset standard.
3. a kind of vehicle braking ability wireless detecting system according to claim 1, it is characterised in that the wireless transmission
Module uses Zigbee wireless protocols, is based on IEEE.802.15.4 standard；(network is whole by EndDivice in wireless sensor network
End) by 12 AD acquisition collected data of sensor inside JN5139, and the converted device ADC of the on-site signal of capture is adopted
After sample, quantization, coding, become digital signal and be transmitted to microprocessor, is wirelessly transferred, is transmitted to via FFD (Router router)
Coordinator (coordinator), Coordinator are communicated using RS-232 communication interface with host computer；Each wireless router
The data forwarding of at least one wireless data acquisition module is stored and analyzed to host computer；Wireless data acquisition module is
Tidal data recovering and fusion center collect the data information that the transmission of multiple end nodes comes, then analysis processing and storage are led to
It crosses local area network and is sent to monitoring center.
4. a kind of vehicle braking ability wireless detecting system according to claim 1, it is characterised in that the analysis processing
Module reacts the experimental result of the true braking effect of motor vehicle, compares with detected each physical quantity mapping, constructs detection performance
Java standard library；Sorted generalization is carried out for the purposes, weight, braking principle of motor vehicle, is tested in conjunction with braking assessment result and dynamic
Data analyze the safety evaluatio parameter and criterion of motor vehicle braking systems.
5. a kind of vehicle braking ability wireless detecting system according to claim 1, it is characterised in that the human-computer interaction
Module including but not limited to data real-time display, data will be analyzed in real time, and result real-time display, real-time message early warning, generate and deposit
Shelves report, historical record inquiry are presented to the user.
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| CN201810368194.9A CN109307601A (en) | 2018-04-23 | 2018-04-23 | A kind of vehicle braking ability wireless detecting system |
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| CN201810368194.9A CN109307601A (en) | 2018-04-23 | 2018-04-23 | A kind of vehicle braking ability wireless detecting system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109916551A (en) * | 2019-03-28 | 2019-06-21 | 吉林大学 | A kind of braking quality detection method, device and electronic equipment |
| CN110285789A (en) * | 2019-05-28 | 2019-09-27 | 丽水市特种设备检测院 | A kind of vehicle comprehensive detector, detection system and detection method |
| CN110702428A (en) * | 2019-06-10 | 2020-01-17 | 辽宁龙马安泰网络技术有限责任公司 | Method for detecting instantaneous braking performance of automobile during running |
| CN110763485A (en) * | 2019-11-05 | 2020-02-07 | 中国汽车工程研究院股份有限公司 | Method and system for testing performance of automobile anti-heat fading braking system |
| CN112014116A (en) * | 2020-08-10 | 2020-12-01 | 北京三快在线科技有限公司 | Braking distance measuring method and device, medium and unmanned equipment |
| CN112141843A (en) * | 2020-09-07 | 2020-12-29 | 嘉兴市特种设备检验检测院 | Dynamic detection system and method for detecting braking performance of elevator brake |
| CN114674576A (en) * | 2022-03-22 | 2022-06-28 | 江苏省特种设备安全监督检验研究院 | Forklift braking performance test method and device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916551A (en) * | 2019-03-28 | 2019-06-21 | 吉林大学 | A kind of braking quality detection method, device and electronic equipment |
| CN109916551B (en) * | 2019-03-28 | 2020-06-23 | 吉林大学 | Brake performance detection method and device and electronic equipment |
| CN110285789A (en) * | 2019-05-28 | 2019-09-27 | 丽水市特种设备检测院 | A kind of vehicle comprehensive detector, detection system and detection method |
| CN110702428A (en) * | 2019-06-10 | 2020-01-17 | 辽宁龙马安泰网络技术有限责任公司 | Method for detecting instantaneous braking performance of automobile during running |
| CN110702428B (en) * | 2019-06-10 | 2021-06-04 | 辽宁龙马安泰网络技术有限责任公司 | Method for detecting instantaneous braking performance of automobile during running |
| CN110763485A (en) * | 2019-11-05 | 2020-02-07 | 中国汽车工程研究院股份有限公司 | Method and system for testing performance of automobile anti-heat fading braking system |
| CN112014116A (en) * | 2020-08-10 | 2020-12-01 | 北京三快在线科技有限公司 | Braking distance measuring method and device, medium and unmanned equipment |
| CN112141843A (en) * | 2020-09-07 | 2020-12-29 | 嘉兴市特种设备检验检测院 | Dynamic detection system and method for detecting braking performance of elevator brake |
| CN112141843B (en) * | 2020-09-07 | 2022-07-19 | 嘉兴市特种设备检验检测院 | Dynamic detection system and method for detecting braking performance of elevator brake |
| CN114674576A (en) * | 2022-03-22 | 2022-06-28 | 江苏省特种设备安全监督检验研究院 | Forklift braking performance test method and device |
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