CN208444337U - Vibration acceleration acquisition and memory system - Google Patents
Vibration acceleration acquisition and memory system Download PDFInfo
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- CN208444337U CN208444337U CN201821044572.XU CN201821044572U CN208444337U CN 208444337 U CN208444337 U CN 208444337U CN 201821044572 U CN201821044572 U CN 201821044572U CN 208444337 U CN208444337 U CN 208444337U
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- expansion board
- vibration
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Abstract
The utility model embodiment provides a kind of vibration acceleration acquisition and memory system.The system include: include: SD card expansion board, SD card, power supply module, microcontroller and acceleration transducer, SD card expansion board is connect with SD card；SD card expansion board is connect with microcontroller；SD card expansion board is connect with acceleration transducer；Microcontroller is connect with power supply module.The utility model embodiment stores the vibration digital signal that acceleration transducer collects by SD card and SD card expansion board, and passing through power supply module is the power supply of vibration acceleration acquisition and memory system, can to avoid rely in the prior art acquisition computer be powered with data storage and caused by the limitation applied and the problem of off-line data storage can not be carried out, the application range of existing vibration test system is expanded, and realizes the offline storage to vibration acceleration signal.
Description
Technical field
The utility model embodiment is related to vibration test technology field more particularly to vibration acceleration acquisition and memory system.
Background technique
Traditional vibration test system precision is high and powerful, is suitble to carry out data depth analysis and excavation, but this
For class system using complicated and higher cost, the complexity of function and usage mode is unsuitable for that engineering circles are easy to use to be told
It asks, and excessively high cost is also unfavorable for building for large scale structure Long Period Health Monitoring system.
In recent years, scholar both domestic and external has investigated a kind of microcontroller based on open source e-platform (Arduino)
Vibration with MEMS (Microelectro Mechanical Systems, abbreviation MEMS) type acceleration transducer is surveyed
Test system.Its cost is only more than one the percent of conventional commercial vibration acquisition system, and due to the unicity of its system function
Its ease for use is greatly improved, conventional commercial vibration test system disadvantage at high cost and using complexity is overcome, is suitable for work
Journey circle demand easy to use and at low cost.
However, this vibration test system based on Arduino microcontroller and MEMS type acceleration transducer, is carrying out
It when data acquire, needs to connect acquisition computer, powers and carry out data storage to system components by acquisition computer.To make
It is powered at vibration test system dependent on acquisition computer and is stored with data, when acquisition computer breaks down or is not available
When, vibration test system can not just obtain operation needed for electric energy, vibration acceleration data collected can not also be carried out from
Line storage limits the application range of vibration test system, while can not carry out offline storage to vibration acceleration data.
Utility model content
The utility model embodiment provide one kind overcome the above problem or at least be partially solved the above problem vibration plus
Speed acquisition storage system.
The utility model embodiment provides a kind of vibration acceleration acquisition and memory system, comprising: SD card expansion board, SD card,
Power supply module, microcontroller and acceleration transducer, SD card expansion board are connect with SD card；SD card expansion board and microcontroller connect
It connects；SD card expansion board is connect with acceleration transducer；Microcontroller is connect with power supply module.
The vibration number that the utility model embodiment collects acceleration transducer by SD card and SD card expansion board
Signal is stored, and is the power supply of entire vibration acceleration acquisition and memory system by power supply module, can be to avoid the prior art
It is middle rely on acquisition computer be powered with data storage and caused by the limitation applied and off-line data storage can not be carried out
Problem expands the application range of existing vibration test system, and realizes the offline storage to vibration acceleration signal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the vibration acceleration acquisition and memory system that an embodiment of the present invention provides；
Fig. 2 is the structural schematic diagram for the vibration acceleration acquisition and memory system that another embodiment of the utility model provides；
Fig. 3 is the structural schematic diagram for the vibration acceleration acquisition and memory system that the utility model another embodiment provides.
In utility model figure, 1:SD card expansion board；2:SD card；3: power supply module；31: solar powered submodule；311:
Solar panel；312: energy storage unit；32: battery；4: microcontroller；5: acceleration transducer.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Vibration test system based on Arduino microcontroller and MEMS type acceleration transducer, working method is simple, makes
With convenient and at low cost.The cost of above-mentioned vibration test system only has more than one the percent of legacy system, can overcome conventional vibration
Measure the excessively high defect of acquisition and memory system cost.Although the cost of the vibration test system is low, its system accuracy can reach
To the requirement of general large scale structure health monitoring, this will substantially reduce and builds large scale structure health monitoring network/system
Cost.Therefore, the vibration test system based on Arduino microcontroller and MEMS type acceleration transducer, is conducive to low cost
Large scale structure Long Period Health Monitoring system is built.
Fig. 1 is the structural schematic diagram for the vibration acceleration acquisition and memory system that an embodiment of the present invention provides.Such as Fig. 1
Shown, which includes: SD card expansion board 1, SD card 2, power supply module 3, microcontroller 4 and acceleration transducer 5, SD card extension
Plate 1 is connect with SD card 2；SD card expansion board 1 is connect with microcontroller 4；SD card expansion board 1 is connect with acceleration transducer 5；Micro-control
Device 4 processed is connect with power supply module 3.
Specifically, SD card expansion board 1 is connect by modes such as card slots with SD card 2.For example, being arranged in SD card expansion board 1
One card slot, SD card 2 realize the connection of SD card 2 and SD card expansion board 1 by way of being inserted into card slot.SD card expansion board 1
It is connect by modes such as pins with microcontroller 4.SD card expansion board 1 is connect by modes such as pins with acceleration transducer 5.It is micro-
Controller 4 is connect by modes such as pins with power supply module 3.
Microcontroller 4 is the control module of entire vibration acceleration acquisition and memory system.Microcontroller 4 passes through control program
Acquisition conversion instruction is generated, and sends acquisition conversion instruction to acceleration transducer 5.Microcontroller 4 passes through control Program Generating
First store instruction, and the first store instruction is sent to SD card expansion board 1.First store instruction is used to indicate SD card expansion board 1
The vibration digital signal that acceleration transducer 5 collects is read out and is stored.In addition, the first store instruction is also used to refer to
Show that above-mentioned vibration digital signal is synchronized sampling processing by SD card expansion board 1.Microcontroller 4 passes through control Program Generating second
Store instruction, and the second store instruction is sent to SD card 2.Second store instruction is used to indicate the storage of SD card 2 by synchronized sampling
The vibration digital signal obtained after processing.Second store instruction, control SD card 2 store the condition of above-mentioned vibration digital signal, position
Set with format etc..
Acceleration transducer 5 is a kind of sensor that can measure acceleration.It is distributed at least on acceleration transducer 5
One acquisition unit carries out D/A switch for acquiring the analog signal of vibration, and to vibration simulation signal, obtains corresponding
Vibrate digital signal.Acceleration transducer 5 receives the acquisition conversion instruction that microcontroller 4 is sent, and according to acquisition conversion instruction
The regulation of the size of measurement direction and sensitivity when the range ability of the frequency, sampling that are sampled to it, sampling etc., acquisition vibration
Dynamic analog signal, and vibration simulation signal is subjected to D/A switch, obtain the digital signal of vibration.
SD card expansion board 1 is read out and stores to the vibration digital signal collected.When vibration digital signal storage
Into after SD card expansion board 1, SD card expansion board 1 can synchronize sampling processing to above-mentioned vibration digital signal.To vibration number
Signal synchronizes sampling processing, i.e., adds different marks to the vibration digital signal collected in different moments.So that
Different marks is carried in the vibration data signal that different moments collect.Therefore it is easy to acquire in different moments
To vibration digital signal distinguish, thus, guarantee vibration digital signal order.
SD card 2 is a kind of memory device of new generation based on semiconductor fast-flash memory device, mainly have SD card, MiniSD card and
Three kinds of MircoSD card.The type and capacity of SD card are reasonably selected as needed.SD card 2 receives that microcontroller 4 is sent
Two store instructions, and according to the second store instruction, to passing through synchronized sampling in SD card expansion board 1 treated vibration digital signal
It is read out and stores.The storage of SD card 2 stores the above-mentioned vibration digital signal for the condition that meets according to the second instruction.Example
Such as, activation threshold value is rule of thumb rationally set, the vibration digital signal strength obtained after synchronized sampling is handled is sentenced
It is disconnected, if judgement knows that above-mentioned vibration signal intensity is greater than or equal to activation threshold value, which was determined as the first moment.SD card
2 store vibration signal since the first moment.To the vibration digital signal strength obtained after synchronized sampling is handled
Judged again, if judgement knows that above-mentioned vibration signal intensity is less than activation threshold value, after the moment to preset duration
Moment was determined as the second moment.SD card 2 stops storage vibration digital signal at the second moment.Above-mentioned preset duration is according to practical need
It is configured.For example, preset duration is set as 10 seconds.By the way that reasonable activation threshold value is arranged, vibration digital signal is selected
Storage is selected, to filter out some small ambient noise signals.
Power supply module 3 provides electric energy for the work of SD card expansion board 1.As shown in Figure 1, power supply module 3 by with microcontroller
Device 4 is connected directly, and is realized and is indirectly connected with SD card expansion board 1 and acceleration transducer 5, to be that entire vibration acceleration is adopted
The work for collecting storage system provides electric energy.Power supply module mainly includes power generator and battery.Common power generator has wind-force
Power generator, machine power power generator, device of solar generating etc..Battery mainly includes rechargeable battery and battery.Charging
Battery, which is that charging times are limited, rechargeable battery, need that charger is cooperated to use.Common battery have lead-acid accumulator,
Cadmium-nickel accumulator, metal oxide battery, lithium-ions battery etc..The type of reasonably selection power supply module as needed,
The combination of type and capacity.For example, selecting solar power supply apparatus as power supply module, or select lithium battery as power supply mould
Block, or select the combination of solar power supply apparatus and lithium battery as power supply module.
The utility model embodiment, the vibration number that acceleration transducer is collected by SD card and SD card expansion board
Signal is stored, and is the power supply of entire vibration acceleration acquisition and memory system by power supply module, can be to avoid the prior art
It is middle rely on acquisition computer be powered with data storage and caused by the limitation applied and off-line data storage can not be carried out
Problem expands the application range of existing vibration test system, and realizes the offline storage to vibration acceleration signal.
On the basis of the above embodiments, as a kind of optional embodiment, power supply module includes solar powered submodule
Block；Solar powered submodule, including solar panel and energy storage unit；Solar panel is for acquiring and converting
Solar energy obtains electric energy；The electric energy that energy storage unit is used to store solar panel acquisition and is converted to, expands for SD card
Panel power supply.
Specifically, Fig. 2 is that the structure for the vibration acceleration acquisition and memory system that another embodiment of the utility model provides is shown
It is intended to.As shown in Fig. 2, solar powered submodule 31 is selected to provide electric energy for the work of SD card expansion board 1.Solar powered son
Module 31 includes solar panel 311 and energy storage unit 312.Solar panel 311 is directly sent out using sunlight
The wafer of electricity.Solar panel is made by photovoltaic material, and main photovoltaic material has single crystal silicon material and more
Crystal silicon material.Common solar panel is photoelectric effect solar panel, its working principle is that solar irradiation is partly being led
On body p-n junction, new electron-hole pair is formed, under the action of p-n junction electric field, hole flows to the area n by the area p, and electronics is by the area n
The area p is flowed to, just forms electric current after connecting circuit.The electricity that solar panel is acquired and be converted to by energy storage unit 312
It can be carried out storage, continuously the work for SD card expansion board 1 provides electric energy.
The utility model embodiment selects solar powered submodule as power supply module, is continuously SD card extension
The work of plate provides electric energy.It is solar powered by acquiring and converting, it can rationally be economized on resources using solar energy, and can keep away
Exempt from the prior art and rely on the limitation that acquisition computer is powered, not only expands the application range of existing vibration test system, but also
Natural resources is efficiently utilized, to realize inexpensive large scale structure Long Period Health Monitoring task.
On the basis of the above embodiments, as a kind of optional embodiment, power supply module includes rechargeable battery, charging electricity
The memory capacity in pond is greater than preset capacity, continues for some time as the power supply of SD card expansion board.
Specifically, Fig. 3 is that the structure for the vibration acceleration acquisition and memory system that the utility model another embodiment provides is shown
It is intended to.As shown in figure 3, battery 32 is selected to provide electric energy for the work of SD card expansion board 1.In the light such as tunnel, sewer difference
Under environment, in the case where not being available solar power supply apparatus or power supply can not being directly connected to, select battery 32 for SD card expansion
The work of panel 1 provides electric energy.The type of rechargeable battery is reasonably selected as needed.If charged battery capacity is small, just
It needs that continually battery is replaced or charged, wasting manpower and material resources, therefore memory capacity is selected to be greater than preset capacity
Battery is as power supply module.Above-mentioned preset capacity is rationally arranged according to actual needs.
The utility model embodiment selects rechargeable battery as power supply module, and the work for SD card expansion board provides electric energy.
Can be poor in light environment, can not be using in the environment of solar energy, the work for SD card expansion board provides electric energy.It again can be to avoid
The prior art relies on the limitation that acquisition computer is powered, and expands the application range of existing vibration test system.
On the basis of the above embodiments, as a kind of optional embodiment, microcontroller includes: Arduino DUE micro-
Controller or Arduino UNO microcontroller.
Specifically, using Arduino microcontroller as microcontroller.Arduino microcontroller includes hardware and software.Its
In, hardware is the Arduino plate of various models.Software is Integrated Development Environment, generally comprises code editor, compiler, tune
The tools such as device and graphic user interface of examination.Building for hardware is carried out first, then passes through the control program of software kit and implantation,
Realize the control to acceleration transducer, SD card expansion board and SD card.Common Arduino microcontroller has Arduino DUE
Microcontroller and Arduino UNO microcontroller.
The utility model embodiment selects Arduino DUE microcontroller or Arduino UNO microcontroller as micro-control
Device processed, working method are simple, easy to use and at low cost.
On the basis of the above embodiments, as a kind of optional embodiment, acceleration transducer includes: that MMA8151Q adds
Velocity sensor or MMA8152Q acceleration transducer.Specifically, using MEMS acceleration transducer as acceleration transducer.
MEMS acceleration transducer, have it is small in size, light weight and cost is low, low in energy consumption, high reliablity, suitable for mass production, be easy to
Integrate and realize intelligentized feature.Common MEMS acceleration transducer has MMA8151Q acceleration transducer and MMA8152Q
Acceleration transducer.
The utility model embodiment selection MMA8151Q acceleration transducer or MMA8152Q acceleration transducer, which are used as, to be added
Velocity sensor, working method are simple, easy to use and at low cost.
On the basis of the above embodiments, as a kind of optional embodiment, further includes: assembling box；SD card expansion board, SD
Card, power supply module, microcontroller and acceleration transducer, are assembled in inside assembling box.
Specifically, by SD card expansion board, SD card, power supply module, microcontroller and acceleration transducer according to certain suitable
Sequence is arranged in inside assembling box.The utility model does not limit the material of assembling box, size and internal structure, root
According to needing to carry out reasonable selection.The material of assembling box is generally insulating materials, empirically, selects material of the plastics as assembling box
Material.
The utility model embodiment is by by SD card expansion board, SD card, power supply module, microcontroller and acceleration transducer
Five parts are assembled in the inside of assembling box, so that SD card expansion board, SD card, power supply module, microcontroller and acceleration transducer
It is assembled into an entirety, is facilitated and is used and managed.
Utility model finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than
It is limited；Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art
It is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technology
Feature is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and the utility model is each
The spirit and scope of embodiment technical solution.
Claims (7)
1. a kind of vibration acceleration acquisition and memory system characterized by comprising SD card expansion board, SD card, power supply module, micro-
Controller and acceleration transducer, the SD card expansion board are connect with the SD card；The SD card expansion board and the microcontroller
Device connection；The SD card expansion board is connect with the acceleration transducer；The microcontroller is connect with the power supply module.
2. vibration acceleration acquisition and memory system according to claim 1, which is characterized in that the power supply module includes too
Sun can power submodule；The solar powered submodule, including solar panel and energy storage unit；The solar energy
Solar panel is connect with the energy storage unit；The energy storage unit is connect with the microcontroller.
3. vibration acceleration acquisition and memory system according to claim 1, which is characterized in that the power supply module includes depositing
Store up the battery that capacity is greater than preset capacity；The battery is connect with the microcontroller.
4. vibration acceleration acquisition and memory system according to claim 1, which is characterized in that the microcontroller includes:
Arduino DUE microcontroller or Arduino UNO microcontroller.
5. vibration acceleration acquisition and memory system according to claim 1, which is characterized in that the acceleration transducer packet
It includes: MMA8151Q acceleration transducer or MMA8152Q acceleration transducer.
6. vibration acceleration acquisition and memory system according to claim 1, which is characterized in that further include: assembling box；It is described
SD card expansion board, the SD card, the power supply module, the microcontroller and the acceleration transducer, are assembled in described group
Inside mounted box.
7. vibration acceleration acquisition and memory system according to claim 6, which is characterized in that the assembling box includes: modeling
Expect assembling box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821044572.XU CN208444337U (en) | 2018-07-03 | 2018-07-03 | Vibration acceleration acquisition and memory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821044572.XU CN208444337U (en) | 2018-07-03 | 2018-07-03 | Vibration acceleration acquisition and memory system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208444337U true CN208444337U (en) | 2019-01-29 |
Family
ID=65087141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821044572.XU Active CN208444337U (en) | 2018-07-03 | 2018-07-03 | Vibration acceleration acquisition and memory system |
Country Status (1)
| Country | Link |
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| CN (1) | CN208444337U (en) |
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2018
- 2018-07-03 CN CN201821044572.XU patent/CN208444337U/en active Active
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