CN2549433Y - Portable transverse vibration tester for bridge - Google Patents
Portable transverse vibration tester for bridge Download PDFInfo
- Publication number
- CN2549433Y CN2549433Y CN 02224875 CN02224875U CN2549433Y CN 2549433 Y CN2549433 Y CN 2549433Y CN 02224875 CN02224875 CN 02224875 CN 02224875 U CN02224875 U CN 02224875U CN 2549433 Y CN2549433 Y CN 2549433Y
- Authority
- CN
- China
- Prior art keywords
- storer
- control unit
- computer control
- circuit
- chip computer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Measurement Of Unknown Time Intervals (AREA)
Abstract
The utility model relates to a portable transverse vibration tester for a bridge. An output terminal of a speed sensor is connected with a mini-type single chip computer control unit through a pulse identification processing circuit, and output terminals of a vibration pickup and a signal amplifying circuit are connected with the mini-type single chip computer control unit through a signal converting circuit. An input terminal of a liquid crystal display screen is connected with an output terminal of the mini-type single chip computer control unit, and a transfer circuit for electrical level is connected with a serial port of the mini-type single chip computer control unit. An I <2> C bus circuit is connected with an interface of the mini-type single chip computer control unit, and the mini-type single chip computer control unit and a memory selecting decoding circuit are both connected with the memory. The utility model has the advantages of high automation degrees, simple operation, convenient use and carrying, high measuring accuracy and low cost.
Description
The utility model relates to a kind of portable bridge lateral vibration-detecting instrument.
In recent years, along with the frequent speed-raising of railroad train, particularly the bridge lateral vibration problem is more and more outstanding for the bridge vibration on each big link, and it has constituted very big threat to railway safe driving.In order to ensure the security of train operation, bridge vibration is especially carried out regular monitoring to bridge lateral vibration situation, so that can in time understand the bridge situation, seemed very necessary and urgent.And existing detection means is difficult to satisfy this demand.China adopts the transit manual measurement to the detection of bridge vibration more at present, and measuring accuracy is low, and personal error is big; Not only labour intensity is big for manual measurement in addition, and the common laborer is difficult to grasp; Also have a kind of mensuration that adopts vibration analyzer, though precision is higher, apparatus expensive, technical sophistication needs professional and technical personnel's operation, and the bridge inspection team of railway interests generally just disposes this kind equipment, only is used for detecting of emphasis disease bridge.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and a kind of automaticity height is provided, and is simple to operate, use, easy to carry, measuring accuracy height, the portable bridge lateral vibration-detecting instrument that cost is low.
The purpose of this utility model can reach by following measure:
A kind of portable bridge lateral vibration-detecting instrument, comprise minitype single-chip computer control unit 1, LCDs 5, speed pickup 9 and vibro-pickup and signal amplification circuit 10, it is characterized in that: the output terminal of described speed pickup 9 differentiates that through pulse treatment circuit 4 connects minitype single-chip computer control unit 1, the output terminal of described vibro-pickup and signal amplification circuit 10 connects minitype single-chip computer control unit 1 through signaling conversion circuit 7, the output terminal of the input termination minitype single-chip computer control unit 1 of described LCDs 5, level shifting circuit 6 is connected to the serial port of minitype single-chip computer control unit 1, I
2 C bus circuit 2 is connected to the interface of minitype single-chip computer control unit 1, and described minitype single-chip computer control unit 1 selects decoding scheme 8 all to be connected with storer 3 with storer; Described minitype single-chip computer control unit 1 mainly is made of single-chip microcomputer D1; Described storer 3 is made of storer D6, D8, D9, the data bus of described storer D6, D8, D9 is connected with the P00-P07 pin of single-chip microcomputer D1, and its A0-A14 address wire and reading and writing control line link to each other with A0-A14 address wire and the reading and writing control line of single-chip microcomputer D1 respectively; Described level shifting circuit 6 comprises level transferring chip D3, and it is connected with TXD, the RXD of single-chip microcomputer D1.
Above-mentioned pulse differentiates that treatment circuit 4 can be mainly forms by comparer D15, D16, D21 with door D17-D18 or door D19 and d type flip flop D20, the input end of described comparer D15, D16 connects the output of described speed pickup 9 respectively, by being connected to the CK end of d type flip flop D20 with door D17-D18 or door D19, the output of described d type flip flop D20 is connected to described single-chip microcomputer D1 through comparer D21 respectively in the output of described comparer D15, D16.
Above-mentioned comparer D15, D16, D21 can be respectively the open-collector four voltage comparator chips of output.
Above-mentioned signaling conversion circuit 7 can comprise multiway analog switch D2, the output terminal of its input described receipts vibro-pickup of termination and signal amplification circuit 10, and its output terminal inserts single-chip microcomputer D1 through A/D converter D7.
The storer D6 of above-mentioned formation storer 3 can be 8K RAM storer at random; Described storer D8, D9 can be respectively 512K-byte Flash PEPROM storer, and it constitutes the nonvolatile memory of 1M-byte.
Above-mentioned I
2 C bus circuit 2 can be made of time calendar clock D10, storer D11, and described time calendar clock D10, storer D11 are connected to single-chip microcomputer D1 by its data line SDA and clock line SCL respectively.
Above-mentioned storer selects decoding scheme 8 can comprise resistance R 2, the capacitor C 3 of serial connection mutually, and itself and code translator D13 join, and the resistance R 2 of described serial connection mutually, the contact of capacitor C 3 meet latch D14 through Sheffer stroke gate D5.
The utility model compared with prior art has following advantage:
1. automaticity height.Adopt the minitype single-chip computer technology, the feasible functions such as automatic measurement, automatic record that the utlity model has;
2. employing powered battery, volume is little, and is in light weight, uses, carries all just;
3. adopt giant-screen lattice lcd screen directly to show measurement result, intuitive display, low in energy consumption;
4. menu mode operation makes easy and simple to handlely, is easy to grasp, and need not professional and technical personnel's operation, and labour intensity is low;
Train by the time, multiple spot carries out vibration survey and train speed simultaneously to be measured, and is convenient to set up the data information of institute's survey bridge speed and vibration, for the safe handling of bridge equipment provides in time, scientific basis accurately;
6. can check more than 30,000 time historical measurement data by operation the utility model;
7. the survey record data can be sent to host computer by RS232C;
8. the utility model measuring accuracy height; Low cost of manufacture is convenient to popularize; Applied range, the also measurement of available vehicular bridge etc.
The accompanying drawing drawing is described as follows:
Fig. 1 is a theory diagram of the present utility model;
Fig. 2-4 is circuit theory diagrams of the present utility model.
The utility model is described in further detail below in conjunction with drawings and Examples:
Referring to Fig. 1, the utility model adopts powered battery, and it mainly comprises minitype single-chip computer control unit 1, I
2 C bus circuit 2, storer 3, treatment circuit 4 is differentiated in pulse, LCDs 5, level shifting circuit 6, signaling conversion circuit 7, storer is selected decoding scheme 8, speed pickup 9, vibro-pickup and signal amplification circuit 10.Opening power the utility model is promptly in running order.When train passes through, speed pickup 9 is delivered to pulse with detected pulse signal and is differentiated treatment circuit 4, export one after treatment and deliver to minitype single-chip computer control unit 1 with the pulse signal of velocity correlation to detect pulse width be the time, after calculating, draw the speed amount; Vibro-pickup and signal amplification circuit 10 are delivered to signaling conversion circuit 7 with detected vibration signal after processing and amplifying, signaling conversion circuit 7 output digital quantities are delivered to minitype single-chip computer control unit 1, handle arithmetic speed amount and vibratory output by it, and measurement result delivered to LCDs 5, and by level shifting circuit 6 output RS232C standard serial signals of communication.I
2 C bus circuit 2 and minitype single-chip computer control unit 1 are with I
2C bus interface standards and communication protocol are connected, and measure date, time and store relevant input parameter for the utility model provides.Minitype single-chip computer control unit 1 selects 8 pairs of storeies of decoding scheme 3 to carry out after the address selection date and time data of measurement data, measurement are saved in storer 3 by storer.
Referring to Fig. 2, I
2 C bus circuit 2 mainly is made up of time calendar clock D10, storer D11.Wherein, D10 is a kind of I of having
2The time calendar clock C bus interface, low-voltage, that inside comprises RAM provides the date and time information of measurement for the utility model; D11 is a serial i
2The eeprom memory of C bus interface is mainly used to store relevant setup parameter.Time calendar clock D10, the storage data line SDA of D11 and clock line SCL are connected to the single-chip microcomputer D1 in the minitype single-chip computer control unit 1 respectively, with single-chip microcomputer D1 with I
2The C bus communication protocol carries out exchanges data.Storer selects decoding scheme 8 mainly to be made up of resistance R 2, capacitor C 3, Sheffer stroke gate D5, code translator D13, latch D14.Code translator D13 is divided into storage space of the present utility model the nonvolatile memory of 32KRAM and 1M-byte, latch D14 output is connected on the chip selection signal and high address of storer, and the nonvolatile memory with 1M-byte is divided into 32 memory blocks that 32K is one page thus.When the P27 pin of single-chip microcomputer D1 was ' 0 ', 3 pin of Sheffer stroke gate D5 were output as ' 1 ', and latch D14 is output as three-state, therefore selected the RAM district; When selecting Flash PEPROM district, the P27 pin of single-chip microcomputer D1 is ' 0 ' earlier, produce the write signal of latch D14 by code translator D13, ' page or leaf ' that to be selected by single-chip microcomputer D1 writes latch D14 by data bus again, after ' page or leaf ' chooses, and the P27 pin of single-chip microcomputer D1 output ' 1 ', this moment, code translator D13 output was ' 1 ' entirely, Sheffer stroke gate D5 is output as ' 1 ', makes the output of latch D14 effective behind reverser, selects by latch D14 exportable 32 ' pages or leaves '.Resistance R 2, capacitor C 3, Sheffer stroke gate D5 are that latch D14 is output as three-state when guaranteeing that system powers on, and guarantee that storer D8, D9 be not by gating.After single-chip microcomputer D1 initialization was finished, when the voltage of capacitor C 3 is raised to necessarily when high, the output state of Sheffer stroke gate D5 was by 1 control of minitype single-chip computer control unit.
Referring to Fig. 3, storer 3 is the storeies greater than 1M-byte that are made of storer D6, D8, D9.Wherein, storer D6 is a 8K RAM storer at random.Storer D8, D9 are respectively 512K-byte Flash PEPROM storer, and constitute the nonvolatile memory of 1M-byte.The data bus of storer D6, D8, D9 is connected with the P00-P07 pin of single-chip microcomputer D1, its A0-A14 address wire and reading and writing control line link to each other with A0-A14 address wire and the reading and writing control line of single-chip microcomputer D1 respectively, it is the read-write of ' page or leaf ' that single-chip microcomputer D1 can be carried out with 32K Flash PEPROM, makes the utility model can write down 32768 times measurement result.
Referring to Fig. 4, in the level shifting circuit 6, the TXD of ICL232 level transferring chip D3 and single-chip microcomputer D1, RXD links to each other, and Transistor-Transistor Logic level is converted to the RS23C fiduciary level, or the RS232C fiduciary level is converted to TTL.Pulse differentiates that the power supply of treatment circuit 4 be+12V, mainly by comparer D15, D16, D21 and with door D17-D18 and or a D19 and d type flip flop D20 form.Speed pickup 9 is used for detection speed, and two induction pick-up output pulse signals are respectively V1, V2.When train passes through, speed pickup 9 output pulse signals, and deliver to the input end of comparer D15, D16, after its shaping is handled, respectively by delivering to the CK end of d type flip flop D20 with door D17, D18 or door D19, produce one by d type flip flop D20 and export identical pulse of recurrent interval with two sensors, this pulse is delivered to single-chip microcomputer D1 after comparer D21 level conversion, detect width time of this pulse by single-chip microcomputer D1, with the calculated column vehicle speed.What comparer D15, D16, D21 adopted is the open-collector four voltage comparator chips of output.Signaling conversion circuit 7 is made up of multiway analog switch D2 and A/D converter D7, and it receives signal I1, I2, the I3 of vibro-pickup and signal amplification circuit 10 outputs.Switch by minitype single-chip computer control unit 1 control analog switch D2 passage, and start A/D converter D7.12 bit data of A/D converter D7 are by single-chip microcomputer D1 control, with 8 form timesharing outputs.
In the utility model, enough big for storage space is expanded to, storer selects the storer of decoding scheme 8 also can adopt RAM, EPROM etc.; Level shifting circuit 6 also can adopt conversion chips such as RS422 or RS485; I
2Clock circuit in the C bus circuit 2 also can adopt the circuit of interface shapes such as MC146818.
Claims (7)
1. portable bridge lateral vibration-detecting instrument, comprise minitype single-chip computer control unit (1), LCDs (5), speed pickup (9) and vibro-pickup and signal amplification circuit (10), it is characterized in that: the output terminal of described speed pickup (9) differentiates that through pulse treatment circuit (4) connects minitype single-chip computer control unit (1), the output terminal of described vibro-pickup and signal amplification circuit (10) connects minitype single-chip computer control unit (1) through signaling conversion circuit (7), the output terminal of the input termination minitype single-chip computer control unit (1) of described LCDs (5), level shifting circuit (6) is connected to the serial port of minitype single-chip computer control unit (1), I
2C bus circuit (2) is connected to the interface of minitype single-chip computer control unit (1), and described minitype single-chip computer control unit (1) selects decoding scheme (8) all to be connected with storer (3) with storer; Described minitype single-chip computer control unit (1) mainly is made of single-chip microcomputer D1; Described storer (3) is made of storer D6, D8, D9, the data bus of described storer D6, D8, D9 is connected with the P00-P07 pin of single-chip microcomputer D1, and its A0-A14 address wire and reading and writing control line link to each other with A0-A14 address wire and the reading and writing control line of single-chip microcomputer D1 respectively; Described level shifting circuit (6) comprises level transferring chip D3, and it is connected with TXD, the RXD of single-chip microcomputer D1.
2. portable bridge lateral vibration-detecting instrument as claimed in claim 1, it is characterized in that: described pulse differentiate treatment circuit (4) mainly by comparer D15, D16, D21 and with door D17-D18 and or door D19 and d type flip flop D20 form, the input end of described comparer D15, D16 connects the output of described speed pickup 9 respectively, by being connected to the CK end of d type flip flop D20 with door D17-D18 or door D19, the output of described d type flip flop D20 is connected to described single-chip microcomputer D1 through comparer D21 respectively in the output of described comparer D15, D16.
3. portable bridge lateral vibration-detecting instrument as claimed in claim 2 is characterized in that: described comparer D15, D16, D21 are respectively the open-collector four voltage comparator chips of output.
4. portable bridge lateral vibration-detecting instrument as claimed in claim 1 or 2, it is characterized in that: described signaling conversion circuit (7) comprises multiway analog switch D2, the output terminal of its input described receipts vibro-pickup of termination and signal amplification circuit (10), its output terminal inserts single-chip microcomputer D1 through A/D converter D7.
5. portable bridge lateral vibration-detecting instrument as claimed in claim 4 is characterized in that: the storer D6 of described formation storer (3) is a 8K RAM storer at random; Described storer D8, D9 are respectively 512K-byte Flash PEPROM storer, and it constitutes the nonvolatile memory of 1M-byte.
6. portable bridge lateral vibration-detecting instrument as claimed in claim 5 is characterized in that: described I
2C bus circuit (2) is made of time calendar clock D10, storer D11, and described time calendar clock D10, storer D11 are connected to single-chip microcomputer D1 by its data line SDA and clock line SCL respectively.
7. portable bridge lateral vibration-detecting instrument as claimed in claim 6, it is characterized in that: described storer selects decoding scheme (8) to comprise resistance R 2, the capacitor C 3 of serial connection mutually, itself and code translator D13 join, and the resistance R 2 of described serial connection mutually, the contact of capacitor C 3 meet latch D14 through Sheffer stroke gate D5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224875 CN2549433Y (en) | 2002-05-21 | 2002-05-21 | Portable transverse vibration tester for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224875 CN2549433Y (en) | 2002-05-21 | 2002-05-21 | Portable transverse vibration tester for bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2549433Y true CN2549433Y (en) | 2003-05-07 |
Family
ID=33702204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02224875 Expired - Fee Related CN2549433Y (en) | 2002-05-21 | 2002-05-21 | Portable transverse vibration tester for bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2549433Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623999A (en) * | 2013-08-14 | 2014-03-12 | 成都飞机工业（集团）有限责任公司 | Calibration device of vibrating sieving machine |
| CN104457634A (en) * | 2014-12-25 | 2015-03-25 | 西南大学 | Micro-tremor measurement based bridge pier scour monitoring system and method |
-
2002
- 2002-05-21 CN CN 02224875 patent/CN2549433Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623999A (en) * | 2013-08-14 | 2014-03-12 | 成都飞机工业（集团）有限责任公司 | Calibration device of vibrating sieving machine |
| CN103623999B (en) * | 2013-08-14 | 2015-09-16 | 成都飞机工业（集团）有限责任公司 | Runout screening machine calibrating installation |
| CN104457634A (en) * | 2014-12-25 | 2015-03-25 | 西南大学 | Micro-tremor measurement based bridge pier scour monitoring system and method |
| CN104457634B (en) * | 2014-12-25 | 2017-01-25 | 西南大学 | Micro-tremor measurement based bridge pier scour monitoring system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102707321B (en) | Receiving and collecting system and method for transient electromagnetic instrument | |
| CN203260029U (en) | System chip prototype verification debugging device based on field programmable gate array (FPGA) | |
| CN2824007Y (en) | Intelligent multi-channel tester for bridge vibration and data acquiring adapter thereof | |
| CN101936814A (en) | Computer type automobile failure diagnosing device and system | |
| CN201107065Y (en) | Intelligent electromagnetic flow meter with recoding function without paper | |
| CN2549433Y (en) | Portable transverse vibration tester for bridge | |
| CN201177836Y (en) | Information recorder for hybrid power automobile | |
| CN103018542B (en) | A kind of corona current capture card based on usb bus | |
| CN200972500Y (en) | Integral automatic integrated tester | |
| CN201681299U (en) | Computerized automobile fault diagnosis system | |
| CN2651825Y (en) | Experimental facility with computer control | |
| CN201548405U (en) | Computer-type vehicle fault diagnosis device | |
| CN202693680U (en) | M-BUS three-phase electronic type electric energy meter | |
| CN202372821U (en) | Multifunctional control module for novel automobile instrument | |
| CN2777573Y (en) | Digital phase sensitive detecting circuit for inductive logging instrument | |
| CN206177383U (en) | Instantaneous oil consumption test system and car | |
| CN212160954U (en) | Underground garage monitoring system circuit based on geomagnetic sensor | |
| CN202281930U (en) | Train axle temperature data monitor recorder | |
| CN206362257U (en) | A kind of multifunctional intellectual tape measure | |
| CN2752786Y (en) | Electric energy meter interface detecting instrument | |
| CN2689202Y (en) | Temperature recorders | |
| CN2840224Y (en) | Multi-position meter | |
| CN206133237U (en) | Liquid boiling range automated inspection , record, drawing instrument device | |
| CN2624211Y (en) | Multifunctional intelligent current meter | |
| CN204944606U (en) | Liquid level detection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |