CN103017894A - Portable safety monitoring system for precise instrument transport - Google Patents

Portable safety monitoring system for precise instrument transport Download PDF

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Publication number
CN103017894A
CN103017894A CN2012104865302A CN201210486530A CN103017894A CN 103017894 A CN103017894 A CN 103017894A CN 2012104865302 A CN2012104865302 A CN 2012104865302A CN 201210486530 A CN201210486530 A CN 201210486530A CN 103017894 A CN103017894 A CN 103017894A
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signal
processing unit
unit
signal processing
converted
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CN2012104865302A
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Chinese (zh)
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宋新
杨磊
赵勇
白玉铸
张为华
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National University of Defense Technology
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National University of Defense Technology
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Priority to CN2012104865302A priority Critical patent/CN103017894A/en
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Abstract

The invention discloses a portable safety monitoring system for precise instrument transport. The system comprises a signal acquisition unit, a signal conditioning conversion unit and a signal processing unit, wherein the signal acquisition unit is used for acquiring the vibration and impact acceleration information of a packaging box of the precise instrument in the transport process and transmitting the acceleration information to the signal conditioning conversion unit in a charge signal form; the signal conditioning conversion unit is used for converting the charge signal into a voltage signal and converting the voltage signal into a digital signal to be transmitted to the signal processing unit; and the signal processing unit is used for converting the digital signal into corresponding physical quantity and storing the physical quantity and giving a warning when the physical quantity exceeds an alarm threshold. According to the system, the precise instrument can be prevented from being damaged in the transport process, and the maintenance cost is reduced.

Description

The portable secured monitoring system that is used for the exact instrument transportation
Technical field
The present invention relates to apparatus installation and transport field, especially, relate to a kind of portable secured monitoring system for the exact instrument transportation.
Background technology
Exact instrument has strict requirement to the vibration in the transportation and percussive action magnitude, and vibration or the excessive meeting of impact magnitude cause expendable damage to instrument.Because exact instrument is expensive, in order to ensure safety in transit, need to measure in real time the vibration and the percussive action that are applied to three directions on the instrument, demonstration and record, and when the effect magnitude surpasses different Secure Threshold, warn, thereby point out conveying people that the travel condition of means of transport is adjusted accordingly.
Because the inner space of means of transport is limited, volume, the power consumption of safety monitoring system had strict restriction, thereby present detection system function is more single.Present existing transport monitoring system has following several defective: vibrational state that 1, can not real-time monitoring instrument; 2, because the vibration of three directions is non-synchronous sampling with impacting, the reason such as poor synchronization causes the vibration of instrument inaccurate with the impact conditions judgement between data channel; 3, can not make warning to the overload that occurs real-time and accurately; 4, warning form is single, can not set different alarm threshold, versatility and very flexible for different instruments.
Summary of the invention
The object of the invention is to provide a kind of exact instrument of avoiding in the damage of transportation, reduce the portable secured monitoring system that is used for the exact instrument transportation of maintenance cost, judge technical matters inaccurate and that can not make warning to the overload of generation real-time and accurately to solve vibrational state, the vibration that existing safety monitoring system can not real-time monitoring instrument with impact conditions.
For achieving the above object, the invention provides a kind of portable secured monitoring system for the exact instrument transportation, comprising:
Signal gathering unit be used for to gather the packing case of exact instrument at the acceleration information of vibration and the impact of transportation, and described acceleration information is transferred to the signal condition converting unit with the form of charge signal;
The signal condition converting unit is used for described charge signal is converted to voltage signal, and is converted to digital data transmission to described signal processing unit;
Signal processing unit is used for described digital signal is converted to corresponding physical quantity and storage, warns when described physical quantity exceeds alarm threshold.
As a further improvement on the present invention:
Described signal gathering unit is 3-axis acceleration sensor.
Described signal condition converting unit comprises signal condition adapter and data collecting card; Described signal condition adapter is used for the charge signal that described 3-axis acceleration sensor collects being converted to voltage signal and amplifying; Described voltage signal after described data collecting card is used for amplifying is converted to digital signal and is transferred to described signal processing unit.
The vibration that described alarm threshold can be born according to described instrument by the user and the safe magnitude of impact are set and are stored in the described signal processing unit.
The quantity of described alarm threshold is more than two.
Described signal processing unit is portable computer.
Described system also is included as the power supply unit of described signal gathering unit, described signal condition converting unit and the power supply of described signal processing unit, and described power supply unit comprises accumulator and onboard charger.
The present invention has following beneficial effect:
The present invention is used for the portable secured monitoring system of exact instrument transportation, simple in structure, can Real-time Collection the vibration of packing case in transportation and the information of impact of exact instrument, and process in real time with thresholding and monitor, in vibration with impact when exceeding the safe magnitude of bearing of instrument, report to the police, reminding driver is noted smooth ride or is suspended transportation, overhauls.The present invention can avoid exact instrument in the damage of transportation, reduces maintenance cost.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.The below is with reference to figure, and the present invention is further detailed explanation.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is that the system of the preferred embodiment of the present invention forms schematic diagram;
Fig. 2 is the installation site schematic diagram of the 3-axis acceleration sensor of the preferred embodiment of the present invention;
Fig. 3 is the damping base structural representation of the preferred embodiment of the present invention.
Marginal data:
1, packing case; 2,3-axis acceleration sensor; 3, damping base; 4, damping spring; 5, mounting disc.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Referring to Fig. 1, the portable secured monitoring system for the exact instrument transportation of the present invention comprises:
1, signal gathering unit be used for to gather the packing case 1 of exact instrument at the acceleration information of vibration and the impact of transportation, and degree of will speed up information is transferred to the signal condition converting unit with the form of charge signal.
In the present embodiment, signal gathering unit is 3-axis acceleration sensor 2, can convert 3 axial vibrations and impact signal to electric signal in real time, and this sensor is the charge accumulation type.The bandwidth of sensor is definite according to the natural frequency of instrument, is typically chosen in 3~5 times of instrument natural frequency, and the natural frequency of instrument is determined by vibration and shock testing.Adopt 500kHz high sampling rate Real-time Collection signal.
The installation site of 3-axis acceleration sensor 2 as shown in Figure 2, the instrument that betransported and packing case 1 are connected, 3-axis acceleration sensor 2 is fixed on packing case 1 outside surface.In order to reduce the amplification of 1 pair of power of packing case, 3-axis acceleration sensor 2 sensors should be tried one's best near the bottom of packing case 1.Packing case 1 is installed on the damping base 3, and damping base 3 is fixed on the means of transport by damping spring 4 and mounting disc 5.
2, signal condition converting unit is used for charge signal is converted to voltage signal, and is converted to digital data transmission to signal processing unit.
In the present embodiment, the signal condition converting unit comprises signal condition adapter and data collecting card.
The signal condition adapter is used for the charge signal that 3-axis acceleration sensor 2 collects being converted to voltage signal and amplifying.Have corresponding relation between the voltage of signal condition adapter output and the acceleration, i.e. V=f(a), wherein V is voltage, and a is acceleration, and f is relevant with the type selecting of sensor and signal condition adapter.In the present embodiment, adopt high-precision signal condition adapter.
Voltage signal after data collecting card is used for amplifying is converted to digital signal and is transferred to signal processing unit.This conversion is analog to digital conversion.In the present embodiment, adopt the synchronous high-speed data collecting card of 24 bit resolutions, differential mode is used in data acquisition, guarantees the high precision of data and good Channel Synchronous.
3, signal processing unit is used for digital signal is converted to corresponding physical quantity and storage, warns when physical quantity exceeds alarm threshold.
In the present embodiment, signal processing unit is portable computing machine, by work such as the conversion of the monitoring of software settling signal in the computing machine, storage, demonstration, analysis, warnings.The vibration that alarm threshold can be born according to instrument by the user and the safe magnitude of impact are set and are stored in the portable computer.The quantity of alarm threshold is more than two, can set a plurality of thresholdings according to the magnitude of impacting by software, surpasses different thresholdings and reports to the police with different sound and flashing mode.During actual the use, alarm threshold is traditionally arranged to be two-stage, surpass lower thresholding then reminding driver note smooth ride, surpass higher thresholding and then will suspend transportation, overhaul.
The physical quantity data of storing in the software can consult and analyze for the user, and analysis result can have directive function to the base designs of the instrumentation package case 1 of exact instrument transportation, and can guide the driver to avoid driving with the road speed of easy generation resonance.These data analyses mainly comprise overload number of times statistics, obtain resonance frequency and the tuning-points of means of transport by data processing functions such as FFT analysis of spectrum, transient analysis, border monitorings.
4, power supply unit comprises accumulator and onboard charger, is used to signal gathering unit, signal condition converting unit and signal processing unit power supply.
Portable secured monitoring system for exact instrument transportation of the present invention, volume is little, low in energy consumption and be convenient for carrying; Can realize multichannel synchronousing collection, and guarantee the phase equalization of interchannel signal, more accurate to vibration and the impact conditions interpretation of instrument to guarantee; Have perfect warning function and can avoid exact instrument in the damage of transportation, reduce maintenance cost.Simultaneously, can also provide the data basis for the vibrational state analysis.The present invention is applicable to the transportation of exact instrument, also can be used for the security monitoring of vehicle-mounted instrument and equipment.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1. a portable secured monitoring system that is used for the exact instrument transportation is characterized in that, comprising:
Signal gathering unit be used for to gather the packing case of exact instrument at the acceleration information of vibration and the impact of transportation, and described acceleration information is transferred to the signal condition converting unit with the form of charge signal;
The signal condition converting unit is used for described charge signal is converted to voltage signal, and is converted to digital data transmission to described signal processing unit;
Signal processing unit is used for described digital signal is converted to corresponding physical quantity and storage, warns when described physical quantity exceeds alarm threshold.
2. system according to claim 1 is characterized in that, described signal gathering unit is 3-axis acceleration sensor.
3. system according to claim 2 is characterized in that, described signal condition converting unit comprises signal condition adapter and data collecting card; Described signal condition adapter is used for the charge signal that described 3-axis acceleration sensor collects being converted to voltage signal and amplifying; Described voltage signal after described data collecting card is used for amplifying is converted to digital signal and is transferred to described signal processing unit.
4. system according to claim 3 is characterized in that, the vibration that described alarm threshold can be born according to described instrument by the user and the safe magnitude of impact are set and be stored in the described signal processing unit.
5. system according to claim 4 is characterized in that, the quantity of described alarm threshold is more than two.
6. system according to claim 5 is characterized in that, described signal processing unit is portable computer.
7. each described system in 6 according to claim 1, it is characterized in that, described system also is included as the power supply unit of described signal gathering unit, described signal condition converting unit and the power supply of described signal processing unit, and described power supply unit comprises accumulator and onboard charger.
CN2012104865302A 2012-11-26 2012-11-26 Portable safety monitoring system for precise instrument transport Pending CN103017894A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103885407A (en) * 2014-03-11 2014-06-25 平顶山学院 Packaged switch equipment transportation process monitor
CN105651313A (en) * 2015-12-31 2016-06-08 长沙全程数字机电科技有限公司 Safety impact protection method and structural vibration monitoring instrument
CN106485070A (en) * 2016-09-30 2017-03-08 广州机智云物联网科技有限公司 A kind of adaptive thresholding value adjustment method
CN107727344A (en) * 2017-09-12 2018-02-23 国网天津市电力公司电力科学研究院 A kind of transformer based on wavelet energy method collides record data analysis method
CN108132429A (en) * 2017-12-15 2018-06-08 广东电网有限责任公司江门供电局 Vehicle-mounted mobile high voltage variable electric car vibratory impulse monitors evaluating apparatus and method on-line
CN109844796A (en) * 2016-09-01 2019-06-04 洛卡解决方案有限责任公司 System and method for monitoring the vibration during cargo transport
CN115339375A (en) * 2022-09-20 2022-11-15 陕西四方华能电气设备有限公司 Cushion plate of pre-installed box transformer substation and transportation safety evaluation method

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CN102155958B (en) * 2010-12-31 2012-08-22 北京兴华机械厂 Transportation condition monitoring recorder based on micro-inertial component
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CN102069769A (en) * 2010-12-17 2011-05-25 交通运输部公路科学研究所 Dangerous goods transport vehicle dynamic monitoring method and early warning device
CN102155958B (en) * 2010-12-31 2012-08-22 北京兴华机械厂 Transportation condition monitoring recorder based on micro-inertial component
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103885407A (en) * 2014-03-11 2014-06-25 平顶山学院 Packaged switch equipment transportation process monitor
CN105651313A (en) * 2015-12-31 2016-06-08 长沙全程数字机电科技有限公司 Safety impact protection method and structural vibration monitoring instrument
CN109844796A (en) * 2016-09-01 2019-06-04 洛卡解决方案有限责任公司 System and method for monitoring the vibration during cargo transport
CN109844796B (en) * 2016-09-01 2023-07-14 艾默生数字冷链公司 System and method for monitoring vibrations during cargo transportation
CN106485070A (en) * 2016-09-30 2017-03-08 广州机智云物联网科技有限公司 A kind of adaptive thresholding value adjustment method
CN107727344A (en) * 2017-09-12 2018-02-23 国网天津市电力公司电力科学研究院 A kind of transformer based on wavelet energy method collides record data analysis method
CN107727344B (en) * 2017-09-12 2019-09-27 国网天津市电力公司电力科学研究院 A kind of transformer collision record data analysing method based on wavelet energy method
CN108132429A (en) * 2017-12-15 2018-06-08 广东电网有限责任公司江门供电局 Vehicle-mounted mobile high voltage variable electric car vibratory impulse monitors evaluating apparatus and method on-line
CN115339375A (en) * 2022-09-20 2022-11-15 陕西四方华能电气设备有限公司 Cushion plate of pre-installed box transformer substation and transportation safety evaluation method
CN115339375B (en) * 2022-09-20 2024-05-10 陕西四方华能电气设备有限公司 Prefabricated box transformer substation cushion plate and transportation safety evaluation method

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Application publication date: 20130403