CN202229897U

CN202229897U - Bridge signal acquisition and modal analysis device of Zigbee technology

Info

Publication number: CN202229897U
Application number: CN2011202614940U
Authority: CN
Inventors: 施杰; 刘椿峰
Original assignee: 施杰
Current assignee: Jiangsu Test Electron Equipment Manufacturing Co., Ltd.
Priority date: 2011-07-22
Filing date: 2011-07-22
Publication date: 2012-05-23
Anticipated expiration: 2021-07-22

Abstract

A bridge signal acquisition and modal analysis device of Zigbee technology is provided. The device comprises a program control amplifier, a simulation filter and a subtracter. A power supply part is formed by a lithium battery power supply module and used for supplying power for all electric components inside an instrument; remote computer signal test and analysis software, a Zigbee wireless emitting and positioning module and controllable bridge voltage and others are connected in series, and the lithium battery power supply module, the controllable bridge voltage, the program control amplifier, DSP data processing, the Zigbee wireless emitting and positioning module and others are connected with a one-chip microcomputer control in parallel. The device is suitable for short distance wireless connection, and can be used for testing a plurality of points of a bridge, and measuring strain, vibration and flexibility and other physical quantities of the bridge; wiring is not necessary, and testing costs can be greatly saved. As the Zigbee wireless communication technology is adopted, the device is low in equipment costs and small in volume, and is provided with a positioning function; the modal analysis can be realized without finding each measuring point correspondingly on a model, and measuring is convenient.

Description

The bridge signals collecting of purple-bee technology and model analysis device

Technical field:

The utility model relates to a kind of bridge signals collecting and model analysis device of purple-bee technology, and it is applicable to the test of bridge sound amount of deflection, vibration, strain.

Background technology:

The guarantee of regional economic development is not only in unobstructed traffic, also is one of important indicator of weighing modern society's quality of the life, and the bridge throat of communications and transportation just also is the huge capital assets that contemporary society has.Bridge structure may receive adverse environment in construction and use; Erosion like harmful chemical substance; Suffer external effects such as vehicle, wind, earthquake, fatigue, overload, human accident; Add the unaccelerated aging of structure itself, the degeneration of bridge inevitable recurring structure state in its life cycle.But; Because management philosophy is low, maintenance technology falls behind and safeguard one-house show; Add the inadequate natural endowment of some Urban Bridge construction period construction quality; Cause bridge to occur various diseases in advance, degenerate serious or cause relevant bridge accident, bring massive losses for national wealth and people's life safety, cause bad societal consequence.

That measures at present deflection of bridge span has a deflection of bridge span appearance; Can satisfy the dynamic and static measurement of the amount of deflection of different types of rridges; Simultaneously, it can also be used to measuring the post of longspan structure thing, the distortion of beam, the vibration displacement of skyscraper, television tower, hoisting machinery, drilling platform etc.But wiring trouble being arranged, the shortcoming that level of integrated system is not high, if follow-uply also will carry out model analysis, also need be with position corresponding one by one wiring on institute's established model of each point on the testee, if measuring point is more, very trouble just seems.

Summary of the invention: the purpose of the utility model is exactly bridge signals collecting and the model analysis device that a kind of purple-bee technology will be provided, and it can overcome present deflection of bridge span appearance and measure existing problem.The purpose of the utility model is to realize like this; The bridge signals collecting of purple-bee technology and model analysis device; Comprise that programmable amplifier, analog filter, subtracter form, it is characterized in that: power pack is made up of the lithium battery power supply module, is all electric elements power supplies of instrument internal; Remote computer signal testing analysis software, Zigbee wireless emission locating module, DSP data processing, 16 analog-to-digital converters, analog filter, programmable amplifier, vibration strain transducer, controlled confession bridge voltages are connected in proper order; Subtracter, the series connection of 16 bit digital to analog converter order, simultaneously parallelly connected with comparer; Lithium battery power supply module, controlled confession bridge voltage, programmable amplifier, 16 bit digital to analog converter, comparer, 16 analog-to-digital converters, DSP data processing, Zigbee wireless emission locating module order are parallelly connected with Single-chip Controlling.The utility model is applicable to that near radio connects, and can test a plurality of points of bridge, measures the physical quantitys such as strain, vibration and amount of deflection of bridge simultaneously, need not wiring, has practiced thrift testing cost greatly.Adopt Zigbee wireless mechanics of communication equipment cost low; Data transmission credibility is high, and security performance is high; Volume is very little, and purple honeybee also has positioning function, orients the position coordinates of each measuring point, and is follow-up when carrying out model analysis, and just need not on model one by one, correspondence goes out each measuring point, convenient measurement.

Description of drawings:

Fig. 1 is the utility model conspectus;

1. lithium battery power supply module, 2. controlled arch bridge voltage, 3. vibration strain transducer, 4. programmable amplifier; 5. analog filter, 6. subtracter, 7.16 bit digital are to analog converter; 8. comparer, 9.16 analog-to-digital converters, 10. Single-chip Controlling; 11.DSP data processing, 12. Zigbee wireless emission locating module, 13. remote computer signal testing analysis software.

Embodiment: the utility model is described further below in conjunction with accompanying drawing;

The bridge signals collecting of purple-bee technology and model analysis device comprise programmable amplifier 4, analog filter 5,6 compositions of subtracter, and it is characterized in that: power pack is made up of lithium battery power supply module 1, are all electric elements power supplies of instrument internal; Remote computer signal testing analysis software 13, Zigbee wireless emission locating module 12,11,16 analog-to-digital converters 9 of DSP data processing, analog filter 5, programmable amplifier 4, vibration strain transducer 3, the 2 order series connection of controlled confession bridge voltage; The 7 order series connection of subtracter 6,16 bit digital to analog converters, simultaneously parallelly connected with comparer 8; Lithium battery power supply module 1, controlled confession bridge voltage 2, programmable amplifier 4,16 bit digital to analog converters 7,8,16 analog-to-digital converters 9 of comparer, DSP data processing 11, Zigbee wireless emission locating module 12 orders are parallelly connected with Single-chip Controlling 10.During practical implementation, the utility model is provided with hardware components and software section.Hardware components is to be provided with lithium battery in the instrument, and unified is that electric elements are supplied power; The signals collecting part then is made up of controlled confession bridge voltage, built-in vibration strain transducer, programmable amplifier, analog filter, subtracter, 16 bit digital to analog converter, comparer, 16 analog-to-digital converters, Single-chip Controlling, DSP data processing, Zigbee wireless emission locating module, remote computer signal testing analysis software.Software section mainly is the model analysis software that uses when carrying out follow-up model analysis; The shake software of conformal analysis of a simulation of this The software adopted VC++ platform development; In conjunction with purple honeybee strain acquisition system; Can obtain specifying original three-dimensional coordinate of measuring point and present three-dimensional coordinate above the bridge, thereby obtain the amount of deflection of bridge, analyze the bridge security performance.

The sensor power supply: at first remote computer signal testing analysis software gives Single-chip Controlling for an order through Zigbee wireless emission locating module; The controlled confession bridge circuit of Single-chip Controlling afterwards; Output supplies bridge voltage to give the vibration strain transducer, for sensor provides WV.Instrument internal voltage signal Balance Treatment: simultaneously, the signal testing analysis software in the remote computer sends instruction through Zigbee wireless emission locating module and gives Single-chip Controlling, and Single-chip Controlling sends instruction for 16 bit digital to analog converter again; Make 16 bit digital to analog converter output aanalogvoltage get into subtracter; Carry out computing, after comparing through comparer, transmission is ceased and desisted order to Single-chip Controlling again; Built-in voltage in the circuit is removed, avoided having influence on measuring-signal.Signal acquisition process: the vibration strain transducer outputs signal to programmable amplifier; Signal gets into analog filter through after amplifying, the elimination irrelevant signal, with useful signal again through 16 analog-to-digital converters; Convert digital signal to; Get into the DSP data processing afterwards, through Single-chip Controlling conversion of signals is become Zigbee wireless emission locating module institute ability identified signal at last, reach and be presented on the remote computer signal testing analysis software through Zigbee wireless emission locating module.Model analysis: the bridge model of in model analysis software, setting up corresponding test; And mark institute's measuring point number; Three-dimensional coordinate according to Zigbee wireless emission each measuring point that locating module collects makes the measuring point of institute's established model corresponding with actual bridge measuring point, has avoided manually corresponding one by one each measuring point; Conveniently make the bridge model animation, better bridge security property is assessed.

Claims

1. the bridge signals collecting of purple-bee technology and model analysis device; Comprise that programmable amplifier (4), analog filter (5), subtracter (6) form; It is characterized in that: power pack is made up of lithium battery power supply module (1), is all electric elements power supplies of instrument internal; Remote computer signal testing analysis software (13), Zigbee wireless emission locating module (12), DSP data processing (11), 16 analog-to-digital converters (9), analog filter (5), programmable amplifier (4), vibration strain transducer (3), the series connection of controlled confession bridge voltage (2) order; Subtracter (6), the series connection of 16 bit digital to analog converter (7) order, simultaneously parallelly connected with comparer (8); It is parallelly connected with Single-chip Controlling (10) that lithium battery power supply module (1), controlled confession bridge voltage (2), programmable amplifier (4), 16 bit digital to analog converter (7), comparer (8), 16 analog-to-digital converters (9), DSP data processing (11), Zigbee wireless are launched locating module (12) order.