CN102087137A - Embedded rail weighbridge weighing system with unbalanced load detecting function - Google Patents
Embedded rail weighbridge weighing system with unbalanced load detecting function Download PDFInfo
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- CN102087137A CN102087137A CN 201010520995 CN201010520995A CN102087137A CN 102087137 A CN102087137 A CN 102087137A CN 201010520995 CN201010520995 CN 201010520995 CN 201010520995 A CN201010520995 A CN 201010520995A CN 102087137 A CN102087137 A CN 102087137A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/04—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles
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Abstract
The invention provides an embedded rail weighbridge weighing system with an unbalanced load detecting function. The system comprises a plurality of sensors and a signal processing system, wherein the plurality of sensors convert wheel weight information of a detected vehicle into analog signals; the signal processing system acquires and processes the analog signals of the wheel weight information output by the plurality of the sensors, and comprises a signal regulating module, an embedded data acquisition module, a bus module and a microprocessing module; the plurality of sensors are connected to a plurality of input ends of the signal regulating module respectively; the plurality of output ends of the signal regulating module are connected with a plurality of input ends of the embedded data acquisition module respectively; the embedded data acquisition module converts the analog signal of the wheel weight information into a digital signal of the wheel weight information, and stores the digital signal of the wheel weight information; the embedded data acquisition module is connected with the microprocessing module through the bus module; and the microprocessing module analyzes the digital signal of the wheel weight information, and calculates a result.
Description
Technical field
The present invention relates to a kind of track scale weighing system, particularly a kind of embedded tracks weighing apparatus weighing system with survey unbalance loading function.
Background technology
At present, domestic track scale metering system all uses the full parallel way of LOAD CELLS mostly, amplify by signal then and the A/D conversion, the signal of sensor is transferred to industrial computer, and industrial computer carries out logic discrimination according to certain algorithm, thus the weight of drawing.This structure, major defect is:
(1) can not differentiate direction to the car, can not the travel direction difference compensate;
(2) because sensor is all in parallel, like this, when breaking down, can not find out which sensor problem immediately;
(3) can not realize the unbalance loading measuring ability;
(4) owing to carry out data acquisition and calculating, be dynamic real-time control again by industrial computer, very high to the computer real-time requirement, and the WINDOWS system is a multitask system.Therefore, it is very high to take CPU, is difficult for realizing multitasking.
When industrial computer is done data acquisition and processing (DAP) work, system resource is dispatched by the WINDOWS systematic unity, application program can not the direct control system resource, if adopt senior data processing algorithm, one side takies more to system resource, increase system burden, makes system running speed slack-off, on the other hand, can not provide enough resources to finish corresponding data processing work at limited time internal operating system.
Summary of the invention
The objective of the invention is to, the industrial computer that solves existing track scale metering system carries out the mutual work of data acquisition, processing and data base administration and man-machine interface simultaneously, and system resource is taken more technical matters.
For achieving the above object, the invention provides a kind of embedded tracks weighing apparatus weighing system of surveying the unbalance loading function that has, comprise a plurality of sensors and signal processing system;
Described a plurality of sensor is a simulating signal with the wheel load information translation of detected vehicle;
Described signal processing system collection and handle the simulating signal of the wheel load information of described a plurality of sensor output comprises the signal condition module, embedded data acquisition module, bus module and micro treatment module;
Described many sensors are connected respectively to a plurality of input ends of described signal condition module;
A plurality of output terminals of described signal condition module are connected with the multi-channel input of described embedded data acquisition module respectively; Described embedded data acquisition module is converted into the digital signal of wheel load information with the simulating signal of wheel load information, and stores;
Described embedded data acquisition module is connected with described micro treatment module by described bus module;
Described micro treatment module is analyzed the digital signal of described wheel load information, result of calculation.
Preferably, described embedded data acquisition module comprises multichannel selection module, channel selecting control module, Logic control module, clock generation module, analog-to-digital conversion module and memory module;
Described multichannel selects the multi-channel input of module to be connected respectively with the multi-channel output of described input signal conditioning module;
Described channel selecting control module is according to described number of sensors, and the channel range of setting data acquisition channel is exported a sensor corresponding address signal to described multichannel and selected module;
Described multichannel selects module according to the described sensor of described address signal gating, and the wheel load information simulation signal of a described sensor acquisition is transferred to described analog-to-digital conversion module;
Described analog-to-digital conversion module is a digital signal with the wheel load information simulation conversion of signals of a described sensor acquisition, is transferred to described memory module storage;
Described clock generation module produces a plurality of clock signals by Logic control module;
Described Logic control module provides described multichannel to select module, the channel selecting control module, needed state of analog-to-digital conversion module and memory module and control timing logic, controlling described multichannel selects module and analog-to-digital conversion module to carry out data acquisition, and the interface sequence of described memory module is provided, with storing in the described memory module of the digital signal of the wheel load information of described a plurality of sensor acquisition.
Beneficial effect of the present invention is, signal collection in real time, processing section are partly separated with man-machine interface with the data base administration of host computer, improves the reliability of sampling, processing section program, and does not increase the burden of host computer.Use the PC104 system, the signals collecting work that has real-time to require is independently finished by the embedded data acquisition module, guarantee reliable continuous sampling, requirement of real time.The present invention has the embedded tracks weighing apparatus weighing system of surveying the unbalance loading function can the work of independent processing data operation, can improve the controllability and the reliability of data acquisition and processing (DAP) process.
The present invention can shared existing weighing system plant equipment, under the constant situation of the plant equipment of original weighing system, only the mode of being connected in parallel of sensor in original terminal box is changed into independent access, can finish system modification, carry out the super unbalance loading of vehicle and judge.
Description of drawings
Figure 1 shows that the embodiment of the invention one has the structural representation of the embedded tracks weighing apparatus weighing system of surveying the unbalance loading function;
Figure 2 shows that the structural representation of the embodiment of the invention two embedded data acquisition modules;
Workflow when Figure 3 shows that interrupt control mode of the present invention;
Workflow when Figure 4 shows that inquiry mode of the present invention;
Figure 5 shows that the structural representation of the embodiment of the invention three embedded data acquisition modules;
Figure 6 shows that the structural representation of the embodiment of the invention four embedded data acquisition modules.
Description of reference numerals
The 1-rail; 11～16-sensor; The 2-signal processing system; 21-signal condition module; 22-embedded data acquisition module; The 221-multichannel is selected module; 222-channel selecting control module; The 223-Logic control module; 2231-sampled data access control module; 2232-interrupt control module; 224-clock generation module; The 225-analog-to-digital conversion module; The 226-memory module; The 23-bus module; The 24-micro treatment module; The 25-power-supply system; 301～310 steps; 401～410 steps; 501～503 buffer circuit modules; The 504-low-pass filtering module; 601～digital quantity input/output module.
Embodiment
Below in conjunction with the drawings and specific embodiments, above-mentionedly be described in more detail with other technical characterictic and advantage to of the present invention.
Embodiment one
Embodiment one is used to illustrate the structure when the present invention is applied to continuous rail and weighs.
Please refer to shown in Figure 1, for the present invention has the structural representation of the embedded tracks weighing apparatus weighing system of surveying the unbalance loading function, it comprises: first sensor 11, the second sensors 12, the 3rd sensor 13, four-sensor 14, the five sensors 15, the six sensors 16 are separately positioned on rail 1 bottom, and fully contact with rail 1, with the wheel load information translation of detected vehicle is simulating signal, and signal processing system 2, is used to gather and handle the simulating signal of described a plurality of sensor outputs.Be provided with 12 sensors in the present embodiment altogether, preferably, 16 sensors can be set also.The number of sensor does not limit protection scope of the present invention.
Described many sensors can be the pressure transducer or the shear force sensor of spaced set, for example, two groups of adjacent pressure transducer centre distances are 760mm, two groups of adjacent shear force sensor centre distances are 1520mm, and same sensor is also installed in the relevant position on an other one steel rail.Above-mentioned mounting means only illustrates a kind of applicable cases of present embodiment, does not limit protection scope of the present invention.
Perhaps, the present invention also can be applied to traditional disconnected rail mode of weighing, and in this case, described many sensors are installed in the basic frame structure of track bottom, by the wheel load information of mechanical weighing table perception vehicle.
As shown in Figure 1, described signal processing system 2 is by signal condition module 21, embedded data acquisition module 22, and bus module 23, micro treatment module 24 and power-supply system 25 are formed.
Wherein, described many sensor acquisition to a plurality of simulating signals be connected respectively to a plurality of input ends of signal condition module 21, respectively input signal conditioning module 21 amplify separately, filtering, use the high-frequency interferencing signal in the low pass filter filters out signal.In embodiment one, the filtering of signal condition module 21 and amplifying circuit are selected for use is that the low temperature of import floats, the AD chip of low noise, high reliability, high integration, has common-mode rejection ratio height, advantage of high precision.Wave filter adopts active low-pass filter circuit to add three grades of filtering such as port element low-pass filtering, be used for eliminating the high frequency interference composition that many sensor output signals comprise, therefore, antijamming capability is extremely strong, solve single group of signal and transmitted susceptible problem, add the potentiometer that adjust zero point and gain is adjusted simultaneously, to guarantee the consistance of every group of signal performance.
The multi-channel output of input signal conditioning module 21 is connected with the multi-channel input of embedded data acquisition module 22 respectively.Embedded data acquisition module 22 is converted into digital signal with the simulating signal of input, and stores.Embedded data acquisition module 22 is connected with micro treatment module 24 by bus module 23.
Power-supply system 25 is respectively signal condition module 21, embedded data acquisition module 22, and bus module 23 and micro treatment module 24 provide electric power.
Embodiment two
The embodiment dual-purpose illustrates a kind of embodiment of embedded data acquisition module 22 among the present invention.
As shown in Figure 2, embedded data acquisition module 22 is selected module 221 by multichannel, channel selecting control module 222, and Logic control module 223, clock generation module 224, analog-to-digital conversion module 225 and memory module 226 constitute.
Wherein, clock generation module 224 is connected with Logic control module 223.Clock generation module 224 produces a plurality of clock signals by Logic control module 223, for analog-to-digital conversion module 225, channel selecting control module 222, memory module 226 provide reference clock signal, guarantees the clock synchronization of each module.
Comprise sampled data storage control module 2231 and interrupt control module 2232 in the Logic control module 223.Wherein, sampled data storage control module 2231 is used to control analog-to-digital conversion module 225 and carries out data-switching and storage; Interrupt control module 2232 is used for micro treatment module 24 is produced look-at-mes, with the digital information transmission of memory module 226 stored in micro treatment module 24.
Multichannel selects the multi-channel input of module 221 to be connected respectively with the multi-channel output of input signal conditioning module 21.
Channel selecting control module 222 is according to the number of sensors of actual installation, the channel range of setting data acquisition channel.The corresponding sensor of each data acquisition channel.In embodiment two, data acquisition channel is 12 the tunnel, and preferred, corresponding to the setting of sensor, data acquisition channel can be 16 the tunnel.
Channel selecting control module 222 is under the control of Logic control module 223, and OPADD signal to multichannel is selected module 221, is used to select the information from certain sensor of corresponding address signal.Channel selecting control module 222 is also respectively organized the corresponding address signal of sensor for memory module 226 provides, so that storage analog to digital conversion result makes every group of data-signal in the memory module 226 corresponding one by one with each group sensor.
Multichannel selects module 221 according to a certain road in the binary address signal selection outputting multiplex signals of channel selecting control module 222 inputs.
Analog-to-digital conversion module 225 is finished the sampling to the input simulating signal, is quantified as digital signal, and transmission converts sign to Logic control module 223.Sampled data storage control module 2231 sends and reads signal to analog-to-digital conversion module 225, and the digital signal that converts is stored in the memory module 226.So far, storage comes from the digital signal of a certain group of sensor in the memory module 226, and should group sensor corresponding address signal.
When gathering and be stored in digital signal in the memory module 226 when reaching some, overflow for avoiding memory module 226, micro treatment module 24 will read the digital signal in the memory module 226, and memory module 226 is emptied.There is dual mode to realize: interrupt control mode and inquiry mode.
Wherein, the interrupt control mode is as follows:
Wherein, inquiry mode is as follows:
When vehicle has the embedded tracks weighing apparatus weighing system of surveying the unbalance loading function by the present invention, the wheel load of detected vehicle (bogie) information is converted to proportional analog voltage signal by many sensors, be sent to the respective channel of signal condition module 21, to signal amplification, filtering.Finish the A/D conversion by embedded data acquisition module 22, data acquisition and storage, and data upload are uploaded the reception and the preservation of data and are finished by system's upper computer outside (server).
Preferably, analog-to-digital conversion module 225 is 12 of precision in embodiment two, and sampling rate is 100KHz.
Preferably, clock generation module 224 is the 40MHz crystal oscillator in embodiment two.
Preferably, bus module 23 is the PC104 bus in embodiment two.
Preferably, memory module 226 uses FIFO (First In First Out first in first out) storer to realize in embodiment two.Utilize the Status Flag signal of FIFO storer to carry out Data Transmission Controlling.When the data of storing in the FIFO storer are half-full state, read request signal to Logic control module 223 transmissions.
Preferably, Logic control module 223 is by FPGA (Field Programmable Gate Array in embodiment two, field programmable gate array) realizes, FPGA is as independent control and executive module, provide clock by frequency division for other operational modules, also control the operate as normal of the each several part hardware circuit of other modules connections simultaneously.By writing corresponding VHDL (VHSIC Hardware Description Language, hypervelocity integrated circuit hardware description language) code, generate corresponding function circuit, realize to signal latch, judge and handle and to the execution of various command signals and the control of output signal.
The present invention adopts the framework of micro treatment module and FPGA to realize high-speed, high precision, data acquisition plan cheaply.After multichannel analog signals process signal condition module 21 and multichannel are selected module 221, input analog-to-digital conversion module 225, analog-to-digital conversion module 225 finish A/D (mould/number) conversion, and the result that will change is sent into FIFO (First In First Out first in first out) storer under the control of FPGA.Micro treatment module is used to carry out system's control and data processing, and FPGA is used for control data collection and metadata cache.Is digital signal by analog-to-digital conversion module 225 with the analog signal conversion of importing, FIFO storer through FPGA control carries out buffer memory, receive the data that collect in the mode of interrupting or inquiring about by the PC104 bus by micro treatment module, micro treatment module is handled and is analyzed the data of gathering again.Signal collection in real time, processing section are partly separated with man-machine interface with the data base administration of host computer, improve the reliability of sampling, processing section program, and do not increase the burden of host computer.
Fig. 3 and Figure 4 shows that the present invention according to embodiment two has the workflow of the embedded tracks weighing apparatus weighing system of surveying the unbalance loading function.
Workflow when Fig. 3 is set at the interrupt control mode for micro treatment module 24.Comprise step:
Workflow when Fig. 4 is set at inquiry mode for micro treatment module 24.Comprise step:
Step 405 is stored in the digital signal of a certain sensor that collects in the memory module 226.
After micro treatment module 24 obtains the detection signal that comes from sensor, according to the weight of many each wheels of sensor corresponding address information Recognition.
With the wheel weight addition under the forecarriage in the every joint of train compartment, with the wheel weight addition under the trailing bogie in the every joint of train compartment, it is poor to ask then respectively, and it is that front and back wheel is to unbalance loading just that the difference of weight surpasses 10 tons.Secondly, calculate every joint compartment all wheel weight LW of left side and right side wheels all wt RW, according to weight LW and RW, and the distance of the middle section in wheel and compartment, calculate the centre of gravity place DW of goods, if the distance of centre of gravity place DW and middle section, compartment, is then regarded as left and right wheels greater than 100mm to unbalance loading.Once more, all take turns right weight sum to calculate every joint compartment, surpass 84 tons and are overweight.
When the vehicle passing detection system, the stressed size of each sensor is different because each sensor inserts separately, can according to a plurality of sensor acquisition to the variation of wheel weight can judge direction to the car.
Embodiment three
Embodiment three is used for illustrating another embodiment of embedded data acquisition module 22 among the present invention.
Different with embodiment two is to have increased the buffer circuit module among the embodiment three.
The buffer circuit module can use modes such as transformer, photoelectricity or capacitive coupling to transmit signal between disparate modules, avoids directly electric or physical connection.The high-voltage transient phenomenon may appear in the equipment of monitoring owing to the embedded tracks weighing apparatus weighing system with survey unbalance loading function, for example thunderbolt, use the buffer circuit module that a plurality of sensor signals and embedded data acquisition module 22 are isolated, can guarantee the safety of data acquisition module.In addition, the environment with embedded tracks weighing apparatus weighing system working site of surveying the unbalance loading function can produce a lot of interference, as the space electromagnetic interference (EMI) etc., adopts the buffer circuit module can eliminate the influence of these interference.
As shown in Figure 5, a plurality of buffer circuit modules are set in the embedded data acquisition module 22.Wherein, multichannel is selected between module 221 and the channel selecting control module 222 buffer circuit module 501 to be set.Between analog-to-digital conversion module 225 and the Logic control module 223 buffer circuit module 502 is set, between analog-to-digital conversion module 225 and the memory module 226 buffer circuit module 503 is set.
Preferably, the buffer circuit module is used photoelectric coupled device.Photoelectric coupled device can be realized the isolation of signal reliably, and constitutes multiple functional status easily, as Signal Spacing, isolation drive, remote transmission etc.
Preferably, select between module 221 and the analog-to-digital conversion module 225 low-pass filtering module 504 to be set in multichannel, the high fdrequency component that is used for filtered signal is removed the interference that more detected neutral signals cause useful signal, and suppresses or eliminate the influence that the multiple signals aliasing is gathered data.Low-pass filtering module 504 can adopt the RC low-pass filter.
Embodiment four
The embodiment four-function illustrates another embodiment of embedded data acquisition module 22 among the present invention.
Different with embodiment two is, increased digital quantity input/output module 601 among the embodiment four, digital quantity input/output module 601 is connected to Logic control module 223, be used to gather external switch amount signal, provide the input and output of switching value, to external relay with near reservation subsidiary function interfaces such as switches.
But 601 connections of digital quantity input/output module in orbit near switch, controlling the input and output of outside relay, calculate the wheelbase of vehicle, judge vehicle.
More than explanation is just illustrative for the purpose of the present invention, and nonrestrictive, those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited, can make many modifications, change; or equivalence, but all will fall within the scope of protection of the present invention.
Claims (12)
1. one kind has the embedded tracks weighing apparatus weighing system of surveying the unbalance loading function, it is characterized in that, comprises a plurality of sensors and signal processing system;
Described a plurality of sensor is a simulating signal with the wheel load information translation of detected vehicle;
Described signal processing system collection and handle the simulating signal of the wheel load information of described a plurality of sensor output comprises the signal condition module, embedded data acquisition module, bus module and micro treatment module;
Described many sensors are connected respectively to a plurality of input ends of described signal condition module;
A plurality of output terminals of described signal condition module are connected with the multi-channel input of described embedded data acquisition module respectively; Described embedded data acquisition module is converted into the digital signal of wheel load information with the simulating signal of wheel load information, and stores;
Described embedded data acquisition module is connected with described micro treatment module by described bus module;
Described micro treatment module is analyzed the digital signal of described wheel load information, result of calculation.
2. the embedded tracks weighing apparatus weighing system with survey unbalance loading function as claimed in claim 1 is characterized in that described embedded data acquisition module comprises multichannel selection module, the channel selecting control module, Logic control module, clock generation module, analog-to-digital conversion module and memory module;
Described multichannel selects the multi-channel input of module to be connected respectively with the multi-channel output of described input signal conditioning module;
Described channel selecting control module is according to described number of sensors, and the channel range of setting data acquisition channel is exported a sensor corresponding address signal to described multichannel and selected module;
Described multichannel selects module according to the described sensor of described address signal gating, and the wheel load information simulation signal of a described sensor acquisition is transferred to described analog-to-digital conversion module;
Described analog-to-digital conversion module is a digital signal with the wheel load information simulation conversion of signals of a described sensor acquisition, is transferred to described memory module storage;
Described clock generation module produces a plurality of clock signals by Logic control module;
Described Logic control module provides described multichannel to select module, the channel selecting control module, needed state of analog-to-digital conversion module and memory module and control timing logic, controlling described multichannel selects module and analog-to-digital conversion module to carry out data acquisition, and the interface sequence of described memory module is provided, with storing in the described memory module of the digital signal of the wheel load information of described a plurality of sensor acquisition.
3. the embedded tracks weighing apparatus weighing system with survey unbalance loading function as claimed in claim 2 is characterized in that described micro treatment module reads the digital signal of the wheel load information of storing in the described memory module in the interrupt control mode.
4. the embedded tracks weighing apparatus weighing system with survey unbalance loading function as claimed in claim 3 is characterized in that described memory module reads request signal according to the store status of self to the Logic control module transmission;
Described Logic control module sends look-at-me according to the described request signal that reads to described bus module;
Described micro treatment module call interrupt routine, described Logic control module with the data transmission in the described memory module to described micro treatment module.
5. the embedded tracks weighing apparatus weighing system with survey unbalance loading function as claimed in claim 2 is characterized in that described micro treatment module reads the digital signal of the wheel load information of storing in the described memory module with inquiry mode.
6. the embedded tracks weighing apparatus weighing system with survey unbalance loading function as claimed in claim 5, it is characterized in that, described micro treatment module sends query statement to described Logic control module, and described Logic control module arrives described micro treatment module with the data transmission in the described memory module.
7. the embedded tracks weighing apparatus weighing system with survey unbalance loading function as claimed in claim 1 is characterized in that described signal acquiring system is provided with Ethernet interface, and the result that described micro treatment module will be analyzed connects host computer by described Ethernet interface.
8. the embedded tracks weighing apparatus weighing system with survey unbalance loading function as claimed in claim 1 is characterized in that described micro treatment module calculates the result of gross weight, the speed of a motor vehicle, front and back unbalance loading, left and right sides unbalance loading.
9. the embedded tracks weighing apparatus weighing system with survey unbalance loading function as claimed in claim 2 is characterized in that described multichannel is selected between module and the channel selecting control module the first buffer circuit module to be set.
10. the embedded tracks weighing apparatus weighing system with survey unbalance loading function as claimed in claim 2 is characterized in that, the second buffer circuit module is set between described analog-to-digital conversion module and the Logic control module.
11. the embedded tracks weighing apparatus weighing system with survey unbalance loading function as claimed in claim 2 is characterized in that, the 3rd buffer circuit module is set between described analog-to-digital conversion module and the memory module.
12. the embedded tracks weighing apparatus weighing system with survey unbalance loading function as claimed in claim 2 is characterized in that described Logic control module connects the digital quantity input/output module, gathers external switch amount signal.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010520995A CN102087137B (en) | 2010-10-21 | 2010-10-21 | Embedded rail weighbridge weighing system with unbalanced load detecting function |
| AU2011318043A AU2011318043B2 (en) | 2010-10-21 | 2011-10-18 | Embedded railroad track scale weighing system capable of weighing unbalanced load |
| PCT/CN2011/080900 WO2012051937A1 (en) | 2010-10-21 | 2011-10-18 | Embedded railroad track scale weighing system capable of weighing unbalanced load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010520995A CN102087137B (en) | 2010-10-21 | 2010-10-21 | Embedded rail weighbridge weighing system with unbalanced load detecting function |
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| CN102087137A true CN102087137A (en) | 2011-06-08 |
| CN102087137B CN102087137B (en) | 2012-08-29 |
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| CN201010520995A Active CN102087137B (en) | 2010-10-21 | 2010-10-21 | Embedded rail weighbridge weighing system with unbalanced load detecting function |
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| CN (1) | CN102087137B (en) |
| AU (1) | AU2011318043B2 (en) |
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| WO2012051937A1 (en) * | 2010-10-21 | 2012-04-26 | 北京东方瑞威科技发展有限公司 | Embedded railroad track scale weighing system capable of weighing unbalanced load |
| CN102999644A (en) * | 2011-11-22 | 2013-03-27 | 北京泛华恒兴科技有限公司 | Multifunctional isolated data acquisition card |
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| CN102087137B (en) * | 2010-10-21 | 2012-08-29 | 北京东方瑞威科技发展有限公司 | Embedded rail weighbridge weighing system with unbalanced load detecting function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012051937A1 (en) * | 2010-10-21 | 2012-04-26 | 北京东方瑞威科技发展有限公司 | Embedded railroad track scale weighing system capable of weighing unbalanced load |
| CN102999644A (en) * | 2011-11-22 | 2013-03-27 | 北京泛华恒兴科技有限公司 | Multifunctional isolated data acquisition card |
| CN102999642A (en) * | 2011-11-22 | 2013-03-27 | 北京泛华恒兴科技有限公司 | Multifunctional data acquisition card |
| CN102999644B (en) * | 2011-11-22 | 2015-11-25 | 上海恩艾仪器有限公司 | Multi-function separation-type data collecting card |
| CN104049554B (en) * | 2013-03-11 | 2017-05-17 | 中国科学院软件研究所 | FPGA-based multifunctional input-output module and input-output method |
| CN104049554A (en) * | 2013-03-11 | 2014-09-17 | 中国科学院软件研究所 | FPGA-based multifunctional input-output module and input-output method |
| CN103335697B (en) * | 2013-06-04 | 2015-04-01 | 马钢控制技术有限责任公司 | A rail transport measurement standard tare weight system |
| CN103335697A (en) * | 2013-06-04 | 2013-10-02 | 马钢控制技术有限责任公司 | A rail transport measurement standard tare weight system |
| CN103616064A (en) * | 2013-11-29 | 2014-03-05 | 北京东方瑞威科技发展股份有限公司 | Long-table-face dynamic rail weighbridge weighing system |
| CN104019875B (en) * | 2014-06-18 | 2017-02-15 | 中车山东机车车辆有限公司 | Wagon overload and unbalanced load real-time detection method and portable device |
| CN104019875A (en) * | 2014-06-18 | 2014-09-03 | 济南轨道交通装备有限责任公司 | Wagon overload and unbalanced load real-time detection method and portable device |
| CN104154977A (en) * | 2014-08-27 | 2014-11-19 | 梧州市旺捷机械制造有限公司 | Weighing instrument |
| CN104729642A (en) * | 2015-04-13 | 2015-06-24 | 杭州钱江称重技术有限公司 | Rail weighbridge measuring system based on CAN (controller area network) bus |
| 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 |
| CN108226619A (en) * | 2016-12-22 | 2018-06-29 | 航天信息股份有限公司 | A kind of amperometric sensor signal conditioning circuit |
| CN106706100A (en) * | 2017-03-08 | 2017-05-24 | 成都货安计量技术中心有限公司 | Rail weighbridge system based on Ethernet |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012051937A1 (en) | 2012-04-26 |
| CN102087137B (en) | 2012-08-29 |
| AU2011318043B2 (en) | 2015-01-15 |
| AU2011318043A1 (en) | 2013-02-07 |
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