CN205175549U - A wireless low frequency acceleration sensor node means for vibrating monitoring - Google Patents
A wireless low frequency acceleration sensor node means for vibrating monitoring Download PDFInfo
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- CN205175549U CN205175549U CN201520849598.1U CN201520849598U CN205175549U CN 205175549 U CN205175549 U CN 205175549U CN 201520849598 U CN201520849598 U CN 201520849598U CN 205175549 U CN205175549 U CN 205175549U
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Abstract
The utility model relates to a wireless low frequency acceleration sensor node means for vibrating monitoring, including energy supply module and connect energy supply module's low frequency acceleration sensor module respectively, central processing unit module and wireless transceiver module, low frequency acceleration sensor module, central processing unit module and wireless transceiver module connect gradually, the central processing unit module includes signal interface and connects energy supply module's AD converter respectively, a data processor, time lock ware and data memory, the AD converter passes through signal interface and connects low frequency acceleration sensor module, data processor connects the AD converter respectively, time lock ware and data memory, wireless transceiver module passes through signal interface and connects data processor. Compared with the prior art, the utility model discloses can not only satisfy the earth pulsation and the civil structure environmental vibration demand of measuring the low frequency, still have the potentiality that expand to wireless self -organizing monitoring network system.
Description
Technical field
The utility model relates to Signal transmissions and vibration monitoring field, especially relates to a kind of wireless low-frequency acceleration sensor node apparatus for vibration monitoring.
Background technology
As the important means of modern times monitoring bad hidden danger, sensor plays key player in vibration monitor system.Large-scale civil engineering structure and infrastructure are in its military service process, be subject to the impact of the unfavorable factors such as environmental load effect, fatigue effect, corrosion effect and material aging, structure inevitably produces damage accumulation, degradation resistance, even causes burst accident.For making civil engineering structure safe operation, monitoring reliability should be carried out to structure, to realize the evaluation to safety of structure.In general, the vibration in civil engineering work mainly refers to low-frequency vibration, and its vibration frequency is at below 5Hz.
Earth pulsation is a kind of more stable of ground and the random fluctuation of non-repeatability.Its frequency band is very wide, and the periodic regime of covering is very large, is divided into the short period to pulse and long period pulsation.Short period pulsation is caused by noise region, and long period pulsation is caused by natural cause.And the target of our monitoring is long period pulsation, the frequency range of it and building environmental structure has very large similarity.
Existing Related product can not meet the high-precision sensor that both detects demand simultaneously very well on the market.Traditional wired sensor, in the process used, have volume comparatively large, cable is more, the many drawback such as usable range is limited.By comparison, wireless senser overcomes the impact that work on the spot circumstance complication runs monitoring equipment, solves the problem of the excessive and cable winds of volume, also facilitates technician to carry out remote monitoring work.
Utility model content
The purpose of this utility model is exactly finiteness and the precision problem of inconvenience in order to solve above-mentioned traditional wire acceleration transducer and existing radio acceleration meter range of application, and a kind of wireless low-frequency acceleration sensor node apparatus for vibration monitoring is provided, this device can not only meet the pulse of the earth and civil structure ambient vibration demand of measuring low frequency, also has the potentiality expanding to wireless Ad Hoc monitoring network system.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of wireless low-frequency acceleration sensor node apparatus for vibration monitoring, comprise power module and connect the low-frequency acceleration sensor module of power module respectively, CPU module and radio receiving transmitting module, described low-frequency acceleration sensor module, CPU module is connected successively with radio receiving transmitting module, described CPU module comprises signaling interface and connects the AD converter of power module respectively, data processor, synchrotimer and data-carrier store, described AD converter connects low-frequency acceleration sensor module by signaling interface, described data processor connects AD converter respectively, synchrotimer and data-carrier store, described radio receiving transmitting module is by signaling interface connection data processor.
Described low-frequency acceleration sensor module comprises the low-frequency acceleration sensor and charge amplifier that are connected, and described low-frequency acceleration sensor is all connected power module with charge amplifier, described charge amplifier connection signal interface.
Described low-frequency acceleration sensor is with the smooth acceleration transducer of super band amplitude-versus-frequency curve at 0.05Hz.
Described CPU module also comprises power supervisor, and described power module connects AD converter, data processor, synchrotimer and data-carrier store respectively by power supervisor.
Described data processor is single-chip microcomputer.
Described power module is sun power energy supply battery and/or accumulator.
Described radio receiving transmitting module comprises the radio frequency chip and antenna that are connected, and described radio frequency chip is all connected power module with antenna, described radio frequency chip connection signal interface.
Described radio frequency chip is ZigBee radio frequency chip.
Described data-carrier store is flash storage or SD storage card.
Compared with prior art, the utility model has the following advantages:
1) for the monitoring of civil structure ambient vibration and pulse of the earth, adopt low-frequency acceleration sensor module, acceleration transducer is smooth with super band amplitude-versus-frequency curve at 0.05Hz, the shock conditions of pulsation and civil structure energetically can be monitored simultaneously, ensure that the accuracy requirement of data in pulse of the earth and the monitoring of civil structure ambient vibration, these Monitoring Data measure based on the inner link between earth pulsation and the vibration of structure to obtain, can be used for understanding the adaptability between building and its environment, the relevance of pulsation and structure itself vibrates highlightedly, and comprehensive the two can the Vibration Condition of more accurate decision structure, make good use of the feature of vein of the earth kinetic energy reflect structure Vibration Condition.
2) radio receiving transmitting module is devised, adopt communication, the demand that energy meets at a distance, hyperchannel, for a long time synchro measure data transmit, solve wiring complexity, awkward problem in traditional wire sensing technology, can self-organization extended network, the ability that self-organization between node is expanded into monitoring network improves a lot, the multi-point sampler of wide area can be met, thus more comprehensively reflect the Vibration Condition of monitoring target, and improve reliability and the accuracy of data transmission.
3) devise synchrotimer in CPU module, synchrotimer is built-in with gps clock, for each sensor image data provides synchronous clock, is conducive to that data are reliably low is lingeringly transferred to receiving end.
4) in CPU module, power supervisor is used for duty and the energy supply of coordinator node, promotes the reasonable distribution of power supply, is conducive to the work of whole node apparatus long-time stable.
5) in CPU module, memory module is the built-in RAM of single-chip microcomputer or jumbo Flash memory chip, and supports to adopt jumbo SD card to expand, and meets the demand that vibration data stores in a large number.
6) data processor is the single-chip microcomputer of high-performance low-power-consumption, reduces production cost, be conducive to applying while ensureing the performance of whole device.
7) adopt the radio frequency chip supporting Zigbee protocol in radio receiving transmitting module, ZigBee has the features such as energy consumption is low, low complex degree, high security, meets the demand of long-term engineering monitoring.
8) power module is made up of sun power energy supply battery and rechargeable type accumulator, for the normal work of each several part module provides energy, make each node can meet the continuation of the journey requirement of long-term engineering monitoring, energy-conserving and environment-protective simultaneously, without the need to additional power circuit.
Accompanying drawing explanation
Fig. 1 is one-piece construction block diagram of the present utility model.
In figure: 1, power module, 2, low-frequency acceleration sensor module, 3, CPU module, 4, radio receiving transmitting module, 21, low-frequency acceleration sensor, 22, charge amplifier, 31, signaling interface, 32, AD converter, 33, data processor, 34, synchrotimer, 35, data-carrier store, 36, power supervisor, 41, radio frequency chip, 42, antenna.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, a kind of wireless low-frequency acceleration sensor node apparatus for vibration monitoring comprises power module 1 and connects the low-frequency acceleration sensor module 2 of power module 1, CPU module 3 and radio receiving transmitting module 4 respectively, low-frequency acceleration sensor module 2, CPU module 3 are connected successively with radio receiving transmitting module 4, with insulation crust, above-mentioned four devices are encapsulated into together, connect with Serial Port Line each other, wherein:
Wherein, CPU module 3 comprises signaling interface 31, AD converter 32, data processor 33, synchrotimer 34, data-carrier store 35 and power supervisor 36, AD converter 32 connects low-frequency acceleration sensor module 2 by signaling interface 31, data processor 33 connects AD converter 32, synchrotimer 34 and data-carrier store 35 respectively, radio receiving transmitting module 4 is by signaling interface 31 connection data processor 33, and power module 1 connects AD converter 32, data processor 33, synchrotimer 34 and data-carrier store 35 respectively by power supervisor 36.
Data processor 33 is made up of the single-chip microcomputer of high-performance low-power-consumption and peripheral circuit, be responsible for the acquisition instructions reading radio receiving transmitting module 4 reception, control low-frequency acceleration sensor module 2 to start to gather acceleration value, and the data collected are transferred to radio receiving transmitting module 4 send.
Surveyed simulating signal can be converted to digital signal and be transferred to data processor 33 by AD converter 32.
Synchrotimer 34 has built-in gps clock, and major function is for each sensor image data provides synchronous clock, is lingeringly transferred to receiving end by reliably low for data.
Power supervisor 36 is responsible for carrying out unified planning management to the electricity consumption of CPU module 3, coordinates duty and the energy supply of this node, also can be connected between power module 1 and low-frequency acceleration sensor module 2, radio receiving transmitting module 4.
Data-carrier store 35 is flash storage or the jumbo SD storage card supporting expansion, meets the demand that vibration data stores in a large number, and the RAM that single-chip microcomputer is built-in simultaneously also can store data.
Low-frequency acceleration sensor module 2 comprises the low-frequency acceleration sensor 21 and charge amplifier 22 that are connected, and low-frequency acceleration sensor 21 is all connected power module 1 with charge amplifier 22, charge amplifier 22 connection signal interface 31.Low-frequency acceleration sensor 21 is with the smooth acceleration transducer of super band amplitude-versus-frequency curve at 0.05Hz, such as: 941B type ultralow frequency vialog, also other specific embodiments with identical parameters function can be selected, as: LC01 Series Piezoelectric acceleration transducer, low frequency single shaft IEPE acceleration transducer.The signal collected amplifies by charge amplifier 22.
Radio receiving transmitting module 4 comprises the radio frequency chip 41 and antenna 42 that are connected, and radio frequency chip 41 is all connected power module 1 with antenna 42, radio frequency chip 41 connection signal interface 31.Radio receiving transmitting module 4 can carry out radio communication with needing the node that mate, while it by wireless monitor to data message converge to the computer controlling center of central base station.ZigBee has the features such as energy consumption is low, low complex degree, high security, and energy is remote, hyperchannel, for a long time synchro measure data transmit, and meets the demand of long-term engineering monitoring.
Radio frequency chip 41 is ZigBee radio frequency chip, supports Zigbee protocol, is operated in the free frequency range of ZigBee.
Power module 1 is sun power energy supply battery and/or accumulator, and can be also other novel energy batteries, accumulator can be lithium battery, and Main Function is for the normal work of each several part module provides energy.
This node apparatus is installed to the position needing to measure, starts working when it receives the work order posterior nodal point device that central base station sends, first by synchrotimer 34, time synchronized is carried out to each node apparatus.Then, after the vibration information collected amplifies by low-frequency acceleration sensor 21, be sent to AD converter 32 by signaling interface 31, after conversion, data are transferred to data processor 33.CPU module 3 controls all the other each modules, the data collected is processed, and buffer memory to data-carrier store 35, or directly transfers data to radio receiving transmitting module 4.Wireless transmitter module is responsible for data packing process, and the relevant Routing Protocol of utilization transfers data to the central base station in scope.Complete the collection of whole data thus, process and transformation task.
When not in working order time, CPU module 3 assigns standby instruction by by power supervisor 36 pairs of miscellaneous parts, thus reduces the power consumption of node, until again receive the instruction that central base station sends.Time in working order, whole node is powered primarily of lithium battery, and solar cell is responsible for sun power to be converted to electric energy.When lithium battery electric power is not enough, whole node switches to solar cell for supplying power, and sends the hypodynamic signal of lithium battery to central base station.By solar cell for supplying power before completing the charging again to lithium battery.
This node apparatus may be used for monitoring to pulse of the earth and civil structure vibration environment and data acquisition, more more effective than non-wireless means.
Claims (9)
1. the wireless low-frequency acceleration sensor node apparatus for vibration monitoring, comprise power module (1) and connect the low-frequency acceleration sensor module (2) of power module (1) respectively, CPU module (3) and radio receiving transmitting module (4), described low-frequency acceleration sensor module (2), CPU module (3) is connected successively with radio receiving transmitting module (4), it is characterized in that, described CPU module (3) comprises signaling interface (31) and connects the AD converter (32) of power module (1) respectively, data processor (33), synchrotimer (34) and data-carrier store (35), described AD converter (32) connects low-frequency acceleration sensor module (2) by signaling interface (31), described data processor (33) connects AD converter (32) respectively, synchrotimer (34) and data-carrier store (35), described radio receiving transmitting module (4) is by signaling interface (31) connection data processor (33).
2. a kind of wireless low-frequency acceleration sensor node apparatus for vibration monitoring according to claim 1, it is characterized in that, described low-frequency acceleration sensor module (2) comprises the low-frequency acceleration sensor (21) and charge amplifier (22) that are connected, described low-frequency acceleration sensor (21) is all connected power module (1) with charge amplifier (22), described charge amplifier (22) connection signal interface (31).
3. a kind of wireless low-frequency acceleration sensor node apparatus for vibration monitoring according to claim 2, it is characterized in that, described low-frequency acceleration sensor (21) is with the smooth acceleration transducer of super band amplitude-versus-frequency curve at 0.05Hz.
4. a kind of wireless low-frequency acceleration sensor node apparatus for vibration monitoring according to claim 1, it is characterized in that, described CPU module (3) also comprises power supervisor (36), and described power module (1) connects AD converter (32), data processor (33), synchrotimer (34) and data-carrier store (35) respectively by power supervisor (36).
5. a kind of wireless low-frequency acceleration sensor node apparatus for vibration monitoring according to claim 4, it is characterized in that, described data processor (33) is single-chip microcomputer.
6. a kind of wireless low-frequency acceleration sensor node apparatus for vibration monitoring according to claim 1, it is characterized in that, described power module (1) is sun power energy supply battery and/or accumulator.
7. a kind of wireless low-frequency acceleration sensor node apparatus for vibration monitoring according to claim 1, it is characterized in that, described radio receiving transmitting module (4) comprises the radio frequency chip (41) and antenna (42) that are connected, described radio frequency chip (41) is all connected power module (1) with antenna (42), described radio frequency chip (41) connection signal interface (31).
8. a kind of wireless low-frequency acceleration sensor node apparatus for vibration monitoring according to claim 7, it is characterized in that, described radio frequency chip (41) is ZigBee radio frequency chip.
9. a kind of wireless low-frequency acceleration sensor node apparatus for vibration monitoring according to claim 1, is characterized in that, described data-carrier store (35) is flash storage or SD storage card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849598.1U CN205175549U (en) | 2015-10-29 | 2015-10-29 | A wireless low frequency acceleration sensor node means for vibrating monitoring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520849598.1U CN205175549U (en) | 2015-10-29 | 2015-10-29 | A wireless low frequency acceleration sensor node means for vibrating monitoring |
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| CN205175549U true CN205175549U (en) | 2016-04-20 |
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| CN201520849598.1U Expired - Fee Related CN205175549U (en) | 2015-10-29 | 2015-10-29 | A wireless low frequency acceleration sensor node means for vibrating monitoring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126143A (en) * | 2021-04-22 | 2021-07-16 | 中国科学院、水利部成都山地灾害与环境研究所 | Portable micro-motion and strong-vibration real-time monitor system |
| CN114414188A (en) * | 2021-12-30 | 2022-04-29 | 北京无线电计量测试研究所 | Device for measuring impact environment of ejection test and configuration method thereof |
-
2015
- 2015-10-29 CN CN201520849598.1U patent/CN205175549U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126143A (en) * | 2021-04-22 | 2021-07-16 | 中国科学院、水利部成都山地灾害与环境研究所 | Portable micro-motion and strong-vibration real-time monitor system |
| CN114414188A (en) * | 2021-12-30 | 2022-04-29 | 北京无线电计量测试研究所 | Device for measuring impact environment of ejection test and configuration method thereof |
| CN114414188B (en) * | 2021-12-30 | 2024-03-29 | 北京无线电计量测试研究所 | Device for measuring impact environment of ejection test and configuration method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20181029 |