CN203688055U - Weighing instrument of dynamic rail weighter - Google Patents
Weighing instrument of dynamic rail weighter Download PDFInfo
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- CN203688055U CN203688055U CN201420037453.7U CN201420037453U CN203688055U CN 203688055 U CN203688055 U CN 203688055U CN 201420037453 U CN201420037453 U CN 201420037453U CN 203688055 U CN203688055 U CN 203688055U
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Abstract
The utility model provides a weighing instrument applied to a dynamic rail weighter product. The weighing instrument is composed of a mainboard, sensor input acquisition boards, an instrument communication board and a switching value input output multifunctional board. By adopting an input mode realizing sensor input of sensors, modularization, multiple analog-to-digital converters and complete power supply isolation, the weighing instrument solves the problems of the parallel connection mode and the analog switch transition mode, for example, when only one sensor fails to work, other sensors cannot work normally due to mutual crosstalk of the sensor excitation, and analog-to-digital converters fails to sample at the same time. In structure, modularized design enables the replacement to be convenient. By adopting an intelligent human-computer operation interface, embedded software is capable of automatically judging the working states of sensors, automatically shielding damaged sensors and ensuring the normal working of the weighter in case of sensor failures. Independent power supplies, difference input, programmable PAG amplification and 24-bit high-precision high-speed acquisition are available in the branching sensor input and complete power supply isolation mode. The communication between the weighing instrument and an upper computer is diversified, the weighing instrument is provided with interface modes such as an RS232, an RS485, a CAN and an Ethernet, IDs of a plurality of devices can be set, and the plurality of devices can work at the same time (only in RS485 and CAN communication modes). A 32-bit single-chip microcomputer is utilized as a processing core, the operation speed is high, the human-computer operation interface is powerful, and the operation system of the intelligent instrument, the usage of the instrument and the operation are simpler and more humanized.
Description
Technical field: the utility model belongs to field of measuring technique, particularly relates to a kind of weighing meter for dynamic track scale.
Background technology: the instrument that conventional dynamic is used in measuring is divided two kinds, and one is full parallel running mode, all also together, the output line of sensor is also all also input to instrument to all the sensors excitation power supply line in a weighing apparatus together.Full parallel way when real work, is unfavorable for that maintainer moves the confirmation of fine or not state to field apparatus at the scene, if when wherein certain sensor can not be worked simultaneously, full parallel way can directly affect the measuring accuracy that weighing apparatus is in operation.Another kind is analog switch input mode along separate routes, sensor signal is amplified respectively and process, and adopts analog switch switching to carry out the independent digital-to-analog conversion in each road and processes unified, sensor excitation power acquisition parallel operation pattern.This mode has interference because sensor adopts power supply to encourage aspect mutual in the time that reality is used, if a sensor also there will be power supply trouble for other sensors of electrical short.Only adopt in addition an analog to digital conversion and analog switch to switch polling mode and can not ensure that sensor signal is in synchronization collection, the signal of collection has the mistiming.
Summary of the invention: the problem existing for solving more parallel mode and analog switch conversion regime, the utility model provides a kind of weighing meter for dynamic track scale.The input mode that adopts sensor input along separate routes, modularization, multimode number converter, sensor input collection plate and main board power supply to isolate completely, is made up of mainboard, sensor input collection plate, instrument communication board, switching value input and output multifunction board; Mainboard is 32 ARM single-chip microcomputers, and mainboard receiving end is connected with sensor input collection plate by PCE bus; Instrument communication board by communication bus be connected to mainboard receiving end, switching value input and output multifunction board is connected with mainboard receiving end.
Mainboard adopts 32 ARM single-chip microcomputers, has 13 PCE buses and 1 road communication bus, and 16 independent buttons, have 24064 LCD liquid crystal display, and the inner intelligent weighing system that embeds, is man-machine interface.
Sensor input collection plate adopts 24 Sigma-delta ADC's, fully differential input, the complete front end of built-in low noise, directly small-signal input, inner integrated PGA programmable amplifier, SPI tri-line data outputs.Sensor input collection plate adopts independently electric power system and main board power supply DC-DC isolated from power, and data exchange interface adopts high speed optoelectronic isolation, and is connected with mainboard by PCE communication interface.
The communication interface of instrument communication board can be RS232 interface, RS485 interface, CAN interface, and Ethernet interface, 4～20 milliamperes of bad interfaces of electric current etc., in order to meet the practical application at various scenes.
Switching value input and output multifunction board, provides the needs of the switching value input and output in track scale system, is the NPN type switching value input of No. 6 electrical equipment isolation, and 2 groups are often opened the long switch contact output of closing.
Owing to adopting sensor input mode along separate routes, each road sensor is a corresponding analog to digital converter and independently power supply excitation input all, avoided sensor to crosstalk mutually, the quality of instrument energy automatic detection sensor itself, facilitates the judgement of field maintemance personnel to equipment state; And automatically calculate and damage sensor output quantity and should be how many according to being embedded in intelligent algorithm, avoid the loss of significance in metering process; Sensor is inputted along separate routes electrical equipment isolation completely and is had independently power supply, difference input, PAG able to programme amplification, 24 high-precision high-speed collections; Entirety adopts modular design, more convenient maintenance and use; The variation of communicating by letter with host computer has the interface modes such as RS232, RS485, CAN, Ethernet, can set multiple devices ID can simultaneously work (only in the time of RS485 and CAN communication).
The utility model can avoid the complete and mode of tradition or analog switch to select the many deficiency of the instrument of multi-channel approach in applying at the scene.The sensor input of Ru Yizhi road damages and can not have influence on other sensor input channels.Internal programmable is amplified, and can adapt to the sensor signal input of different sensitivity.It adopts 32 ARM single-chip microcomputers as processing core, higher arithmetic speed, powerful man machine operation interface simultaneously.Intelligent instrument operating system, Instrument use and operation are more simply more humane.
Brief description of the drawings: Fig. 1 is structured flowchart of the present utility model.
Embodiment: weighing meter for dynamic track scale is made up of mainboard, sensor input collection plate, instrument communication board, switching value input and output multifunction board.Mainboard adopts 32 ARM single-chip microcomputers, and the higher and faster performance of speed is more stable, has 13 PCE buses and 1 road communication bus, and 16 independent button, has 24064 LCD liquid crystal display, inner embedding intelligent weighing system, the simple hommization of man-machine interface.Sensor input collection plate adopts 24 Sigma-delta ADC's, fully differential input, the complete front end of built-in low noise, directly small-signal input, inner integrated PGA programmable amplifier, SPI tri-line data outputs; Sensor input collection plate adopts independently electric power system and main board power supply DC-DC isolated from power, and data exchange interface adopts high speed optoelectronic isolation, and is connected with mainboard by PCE communication interface.Instrument communication board communication interface can be RS232 interface, RS485 interface, CAN interface, and Ethernet interface, the various ways such as 4～20 milliamperes of bad interfaces of electric current, in order to meet the practical application at various scenes.Switching value input and output multifunction board is the NPN type switching value input of No. 6 electrical equipment isolation, and 2 groups often opened the long switch contact output of closing, for meeting the needs of switching value input and output of track scale system.
Claims (6)
1. a weighing meter for dynamic track scale, is characterized in that: be made up of mainboard, sensor input collection plate, instrument communication board, switching value input and output multifunction board; Mainboard is ARM single-chip microcomputer, and mainboard receiving end is connected with sensor input collection plate by PCE bus; Instrument communication board by communication bus be connected to mainboard receiving end, switching value input and output multifunction board is connected with mainboard receiving end.
2. a kind of weighing meter for dynamic track scale according to claim 1, it is characterized in that: mainboard is 32 ARM single-chip microcomputers having 13 PCE buses and 1 road communication bus, 16 independent button, have 24064 LCD liquid crystal display, the inner intelligent weighing system that embeds.
3. a kind of weighing meter for dynamic track scale according to claim 1, it is characterized in that: sensor input collection plate is 24 Sigma-delta ADC's, fully differential input, the complete front end of built-in low noise, directly small-signal input, inner integrated PGA programmable amplifier, SPI tri-line data outputs.
4. a kind of weighing meter for dynamic track scale according to claim 3, it is characterized in that: sensor input collection plate is independently electric power system and main board power supply DC-DC isolated from power, data exchange interface adopts high speed optoelectronic isolation, and is connected with mainboard by PCE communication interface.
5. according to a kind of weighing meter for dynamic track scale described in claim 1 or 2 or 3, it is characterized in that: the communication interface of instrument communication board can be RS232 interface, RS485 interface, CAN interface, Ethernet interface, 4～20 milliamperes of bad interfaces of electric current etc.
6. according to a kind of weighing meter for dynamic track scale described in claim 1 or 2 or 3, it is characterized in that: switching value input and output multifunction board has the NPN type switching value input of No. 6 electrical equipment isolation, and 2 groups are often opened the long switch contact output of closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420037453.7U CN203688055U (en) | 2014-01-21 | 2014-01-21 | Weighing instrument of dynamic rail weighter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420037453.7U CN203688055U (en) | 2014-01-21 | 2014-01-21 | Weighing instrument of dynamic rail weighter |
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| Publication Number | Publication Date |
|---|---|
| CN203688055U true CN203688055U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420037453.7U Expired - Fee Related CN203688055U (en) | 2014-01-21 | 2014-01-21 | Weighing instrument of dynamic rail weighter |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444854A (en) * | 2015-11-27 | 2016-03-30 | 阎富成 | Weighing method and apparatus for electronic railway scale |
| CN106644200A (en) * | 2017-01-22 | 2017-05-10 | 广州市祥利仪器有限公司 | Multichannel force value acquisition system |
| CN111504528A (en) * | 2020-05-11 | 2020-08-07 | 苏州博广远智能科技有限公司 | Multi-path force measuring module |
| CN111707341A (en) * | 2020-06-24 | 2020-09-25 | 北京恒通安泰科技有限公司 | Data acquisition device and data acquisition method for rail weighbridge and rail weighbridge |
| CN112697187A (en) * | 2019-10-23 | 2021-04-23 | 北京钛方科技有限责任公司 | Device and method for realizing measurement of parallel sensors |
| CN112924006A (en) * | 2021-01-28 | 2021-06-08 | 武汉工程大学 | Vehicle dynamic weighing sensor |
| CN114608695A (en) * | 2021-12-03 | 2022-06-10 | 北京复兴华创技术有限公司 | Electronic scale reading system, method, medium, and apparatus |
| US11959797B2 (en) | 2019-08-20 | 2024-04-16 | Beijing Taifang Technology Co., Ltd. | Online detection device and method for piezoelectric device |
-
2014
- 2014-01-21 CN CN201420037453.7U patent/CN203688055U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444854A (en) * | 2015-11-27 | 2016-03-30 | 阎富成 | Weighing method and apparatus for electronic railway scale |
| CN106644200A (en) * | 2017-01-22 | 2017-05-10 | 广州市祥利仪器有限公司 | Multichannel force value acquisition system |
| US11959797B2 (en) | 2019-08-20 | 2024-04-16 | Beijing Taifang Technology Co., Ltd. | Online detection device and method for piezoelectric device |
| CN112697187A (en) * | 2019-10-23 | 2021-04-23 | 北京钛方科技有限责任公司 | Device and method for realizing measurement of parallel sensors |
| CN112697187B (en) * | 2019-10-23 | 2022-03-04 | 北京钛方科技有限责任公司 | Device and method for realizing measurement of parallel sensors |
| CN111504528A (en) * | 2020-05-11 | 2020-08-07 | 苏州博广远智能科技有限公司 | Multi-path force measuring module |
| CN111707341A (en) * | 2020-06-24 | 2020-09-25 | 北京恒通安泰科技有限公司 | Data acquisition device and data acquisition method for rail weighbridge and rail weighbridge |
| CN112924006A (en) * | 2021-01-28 | 2021-06-08 | 武汉工程大学 | Vehicle dynamic weighing sensor |
| CN112924006B (en) * | 2021-01-28 | 2022-04-12 | 武汉工程大学 | Vehicle dynamic weighing sensor |
| CN114608695A (en) * | 2021-12-03 | 2022-06-10 | 北京复兴华创技术有限公司 | Electronic scale reading system, method, medium, and apparatus |
| CN114608695B (en) * | 2021-12-03 | 2024-01-19 | 北京复兴华创技术有限公司 | Electronic scale reading system, method, medium and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151130 Address after: 067065 East Zone, Chengde Development Zone, Hebei Patentee after: CHENGDE WUYUE MEASUREMENT & CONTROL TECHNOLOGY CO., LTD. Address before: 067000 East Zone, Chengde Development Zone, Hebei Patentee before: Chengde Wuyue Electronics Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20180121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |