CN101344421B - Dynamic railway truck scale data acquisition instrument and method - Google Patents
Dynamic railway truck scale data acquisition instrument and method Download PDFInfo
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- CN101344421B CN101344421B CN200810118719XA CN200810118719A CN101344421B CN 101344421 B CN101344421 B CN 101344421B CN 200810118719X A CN200810118719X A CN 200810118719XA CN 200810118719 A CN200810118719 A CN 200810118719A CN 101344421 B CN101344421 B CN 101344421B
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Abstract
The invention discloses a data acquisition unit of a dynamic rail weighbridge and a data acquisition method, and belongs to the technical field of testing. The data acquisition unit of the dynamic rail weighbridge consists of a 4-way amplifier, a 4-way A/D analog-to-digital converter, a multi-way switch, a CPU and a serial port; an input end of an OP077 module of the amplifier is connected with output of a sensor, and the dynamic rail weighbridge has four sensors, output signals of which are respectively connected with the input ends of the four OP077 modules of the four-way amplifier; outputs of four AD620AN modules of the four-way amplifier are respectively connected with inputs of an AD7715AN-5 module of the 4-way A/D analog-to-digital converter, four-way outputs of the four-way A/D analog-to-digital converting module are respectively connected with the multi-way switch and an input end of an AT89C2051 module of the CPU, and output of the AT89C2051 module is connected with an inputend of a serial port module MXD232CPE; an output end of a serial port module MAX232CPE is connected with a computer. The data acquisition unit of the dynamic rail weighbridge and the data acquisitionmethod overcome the problem that debugging of weighing instruments of existing dynamic rail weighbridges is very complicated.
Description
Technical field
The invention belongs to technical field of measurement and test, particularly relate to a kind of dynamic railway truck scale data collecting instrument and collecting method, the output valve of energy while sensor at 4 angles of demonstration track scale table top on microcomputer is also made 4 angular sensitivities balanced compensated (replacing the balanced compensated function of potentiometer).
Background technology
At present, dynamic railway truck scale data collecting instrument commonly used, be four sensors and after bridge circuit connects, gather a signal, pass to data collecting instrument again, data collecting instrument has only one road A/D (analog to digital conversion) passage, the balanced compensated mode of the balanced compensated employing potentiometer of sensor 4 angular sensitivities is debugged very loaded down with trivial details.
Summary of the invention
The object of the present invention is to provide a kind of dynamic railway truck scale data collecting instrument and collecting method, overcome the very loaded down with trivial details problem of existing dynamic railway truck scale weighing instrument debugging.
The present invention is made up of No. 4 amplifiers, 4 road A/D (analog to digital conversion), 1 multi-way switch and CPU, 1 serial ports.Every road amplifier is made up of 1 OP077 module and 1 AD620AN module, and the output of OP077 module connects the input of AD620AN module, the input termination sensor output of the OP077 module of amplifier.Dynamic railway truck scale has 4 sensors, and output signal connects the input end of 4 OP077 modules of 4 amplifiers respectively.AD620AN module output termination 1 road A/D (analog to digital conversion) module of every road amplifier, be that modules A D7715AN-5 carries out analog to digital conversion, the output of 4 AD620AN modules of No. 4 amplifiers is respectively with 4 road A/D (analog to digital conversion)---the input of AD7715AN-5 module is connected, multi-way switch and CPU module are received in four tunnel outputs of 4 road A/D (analog to digital conversion) module respectively, it is the input end of modules A T89C2051, serial port module, the i.e. input end of MXD232CPE are then received in output.The output terminal of serial port module MAX232CPE links to each other with computer.
Signals transmission of the present invention is as follows: 4 signal of sensor are passed to respectively by 4 OP077 modules and 44 amplifier input terminal that the AD620AN module is formed, 4 signal of sensor are passed to 4 A/D (analog to digital conversion) module respectively again through after the filter amplifying processing of amplifier, i.e. 4 modules A D7715AN-5.Output signal after 4 sensor amplification filtering becomes 4 digital signals through A/D (analog to digital conversion) resume module with 4 analog signal conversion, all passes to multi-way switch and CPU module, i.e. modules A T89C2051.Instruction is all calculated, transmits and send to all data in this module.The driving of the data of CPU resume module, instruction process serial port module MAX232CPE is passed to computer with information.
Data collecting instrument of the present invention is 4 road A/D (analog to digital conversion) passage track scale instrument, and the direct current millivolt signal of every sensor transmits by the RS485/232 serial ports after A/D (analog to digital conversion) converts digital signal to; Microcomputer can show 4 angles of track scale table top sensor output valve and make 4 angular sensitivities balanced compensated (replace potentiometer balanced compensated function); Can discern weighing apparatus direction (quite important) to dynamic railway truck scale.
Benefit of the present invention is, sensor is by this kind data collecting instrument, microcomputer can show 4 angles of track scale table top sensor output valve and make 4 angular sensitivities balanced compensated (replacing the balanced compensated function of potentiometer), be convenient to debugging; In addition, show 4 sensor code values in real time, can monitor the performance of four sensors, the sensor that discovery is in time broken down is convenient to safeguard.
Description of drawings
Fig. 1 is a dynamic railway truck scale data collecting instrument structured flowchart.
Fig. 2 is amplifier and A/D (analog to digital conversion) module circuit diagram.
Fig. 3 is multi-way switch and CPU module circuit diagram.
Fig. 4 is serial port circuit figure.
Embodiment
Fig. 1～Fig. 4 is a kind of embodiment of the present invention.
Fig. 1 is that dynamic railway truck scale data collecting instrument and electrical equipment connect block diagram, and data collecting instrument inside mainly is made up of amplifier, A/D (analog to digital conversion), multi-way switch and CPU, serial ports four parts.
Fig. 2 is amplifier and A/D (analog to digital conversion) module circuit diagram, after the signal process OP077 module of the sensor acquisition at each angle of track scale and the amplifier that the AD620AN module is formed carry out filtering and amplification, be sent to analog-to-digital conversion module AD7715AN-5 and carry out analog to digital conversion, convert the digital signal that computing machine can be discerned to.Dynamic railway truck scale always has the signal that four sensors (there is a sensor at each angle of track scale) transmit, and becomes 4 digital signals through identical 4 amplifier modules and analog-to-digital conversion module and is respectively: DA1, DA2, DA3, DA4.
Fig. 3 is multi-way switch and CPU module circuit diagram, and instruction is all calculated, transmits and send to all data in the processor of single-chip microcomputer.Four sensor digital signal DA1, DA2, DA3, DA4 receive the pin 12,14,16,18 of single-chip microcomputer respectively.Digital signal is output as RXD and TXD after calculating through CPU, and RXD and TXD receive the pin 9 and 10 of MXD232CPE respectively.
Fig. 4 is serial port circuit figure, and the function of module MAX232CPE realizes serial communication exactly, drives with serial data to receive, and the chip of integrated this MAX232CPE of IC must connect+and the 5V power supply just can work.Mainly be used in and play in the peripherals and computer or single-chip microcomputer this part serial communication.The signal of four sensors of dynamic railway truck scale is exactly to be connected with the computer of outside by Fig. 4.Realize the demonstration of data and check sensor accuracy.
Claims (3)
1. a dynamic railway truck scale data collecting instrument is characterized in that, is made up of No. 4 amplifiers, 4 road A/D analog to digital conversion, 1 multi-way switch and CPU, 1 serial ports; The input termination sensor output of the OP077 module of amplifier, dynamic railway truck scale has 4 sensors, and output signal connects the input end of 4 OP077 modules of 4 amplifiers respectively; AD620AN module output termination 1 road A/D analog-to-digital conversion module of every road amplifier, the output of 4 AD620AN modules of No. 4 amplifiers is respectively with 4 road A/D analog-to-digital conversion modules---the input of AD7715AN-5 module is connected, the input end of multi-way switch and CPU modules A T89C2051 is received in four tunnel outputs of 4 road A/D analog-to-digital conversion modules respectively, and the input end of serial port module MXD232CPE is then received in multi-way switch and CPU modules A T89C2051 output; The output terminal of serial port module MAX232CPE links to each other with computer; Output signal after 4 sensor amplification filtering is handled through the A/D analog-to-digital conversion module, and 4 analog signal conversion are become 4 digital signals, all passes to multi-way switch and CPU module; Instruction is calculated, transmits and sent to all data all in multi-way switch and CPU module; The driving of the data of CPU resume module, instruction process serial port module MAX232CPE is passed to computer with information.
2. according to the described dynamic railway truck scale data collecting instrument of claim 1, it is characterized in that every road amplifier is made up of 1 OP077 module and 1 AD620AN module, the output of OP077 module connects the input of AD620AN module.
3. method of using the data acquisition of the described dynamic railway truck scale data collecting instrument of claim 1, data collecting instrument is 4 road A/D analog-to-digital conversion module passage track scale instrument, and the direct current millivolt signal of every sensor transmits by the RS485/232 serial ports after the A/D analog-to-digital conversion module converts digital signal to; 4 analog signal conversion are become 4 digital signals, all pass to multi-way switch and CPU module; Instruction is calculated, transmits and sent to all data all in multi-way switch and CPU module; The driving of the data of CPU resume module, instruction process serial port module MAX232CPE is passed to computer with information; Computer show 4 angles of track scale table top sensor output valve and to make 4 angular sensitivities balanced compensated; Discerned the weighing apparatus direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810118719XA CN101344421B (en) | 2008-08-20 | 2008-08-20 | Dynamic railway truck scale data acquisition instrument and method |
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| CN200810118719XA CN101344421B (en) | 2008-08-20 | 2008-08-20 | Dynamic railway truck scale data acquisition instrument and method |
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| CN101344421A CN101344421A (en) | 2009-01-14 |
| CN101344421B true CN101344421B (en) | 2010-09-22 |
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| CN200810118719XA Active CN101344421B (en) | 2008-08-20 | 2008-08-20 | Dynamic railway truck scale data acquisition instrument and method |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589611A (en) * | 2011-01-13 | 2012-07-18 | 江苏东华测试技术股份有限公司 | Device for testing, analyzing and collecting dynamic signal |
| CN104729642B (en) * | 2015-04-13 | 2016-01-06 | 杭州钱江称重技术有限公司 | A kind of track scale metering system based on CAN |
| CN105181098B (en) * | 2015-09-25 | 2017-10-27 | 山东钢铁股份有限公司 | A kind of dynamic railway truck scale high-speed data acquiring device and method |
| CN105737956A (en) * | 2016-03-07 | 2016-07-06 | 成都亿信标准认证集团有限公司 | Dynamic weighing system |
| HUP1600666A1 (en) * | 2016-12-09 | 2018-07-30 | Tenzi Kft | Arrangement for weighting moving vehicles |
| CN114488896A (en) * | 2022-01-26 | 2022-05-13 | 杭州创恒电子技术开发有限公司 | High-precision sole pressure image acquisition device |
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| CN1415944A (en) * | 2002-12-20 | 2003-05-07 | 鞍钢集团鞍山矿业公司质量计量中心 | Real time dynamic rail weighing apparatus |
| EP1610103A1 (en) * | 2004-06-25 | 2005-12-28 | Schenck Process GmbH | Method of determining reference weights by means of a dynamic railway cars scale. |
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- 2008-08-20 CN CN200810118719XA patent/CN101344421B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415944A (en) * | 2002-12-20 | 2003-05-07 | 鞍钢集团鞍山矿业公司质量计量中心 | Real time dynamic rail weighing apparatus |
| EP1610103A1 (en) * | 2004-06-25 | 2005-12-28 | Schenck Process GmbH | Method of determining reference weights by means of a dynamic railway cars scale. |
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| CN101344421A (en) | 2009-01-14 |
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Address after: 066326 Hebei province Qinhuangdao Funing County duzhuang Township Qinhuangdao first Qin metal material Co., Ltd. Co-patentee after: Shougang Group Co. Ltd. Patentee after: Qinhuangdao Shouqin Metal Material Co., Ltd. Address before: 066326 Hebei province Qinhuangdao Funing County duzhuang Township Qinhuangdao first Qin metal material Co., Ltd. Co-patentee before: Capital Iron & Steel General Company Patentee before: Qinhuangdao Shouqin Metal Material Co., Ltd. |
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Effective date of registration: 20190410 Address after: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: Shougang Group Co. Ltd. Address before: 066326 Hebei province Qinhuangdao Funing County duzhuang Township Qinhuangdao first Qin metal material Co., Ltd. Co-patentee before: Shougang Group Co. Ltd. Patentee before: Qinhuangdao Shouqin Metal Material Co., Ltd. |
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