WO2012051937A1

WO2012051937A1 - Embedded railroad track scale weighing system capable of weighing unbalanced load

Info

Publication number: WO2012051937A1
Application number: PCT/CN2011/080900
Authority: WO
Inventors: 刘晓兵
Original assignee: 北京东方瑞威科技发展有限公司
Priority date: 2010-10-21
Filing date: 2011-10-18
Publication date: 2012-04-26
Also published as: CN102087137A; AU2011318043B2; CN102087137B; AU2011318043A1

Abstract

An embedded railroad track scale weighing system capable of weighing an unbalanced load comprising multiple sensors (11-16) and a signal processing system (2). The multiple sensors (11-16) convert the detected wheel weight information of a car into analog signals. The signal processing system (2) collects and processes the wheel weight information analog signals output by the multiple sensors (11-16), said signal processing system (2) comprising a signal regulation module (21), an embedded data collection module (22), a bus module (23), and a micro-processing module (24). The multiple sensors (11-16) are separately connected to multiple input ends of the signal regulation module (21). Multiple output ends of the signal regulation module (21) are separately connected to multiple input ends of the embedded data collection module (22). The embedded data collection module (22) converts the wheel weight information analog signals into digital signals about wheel weight and stores the digital signals. The embedded data collection module (22) is connected to the micro-processing module (24) by means of the bus module (23). The micro-processing module (24) analyzes and calculates the wheel weight information digital signals. The present weighing system can enhance the reliability of sampling and the processing procedure.

Description

Embedded track scale weighing system with eccentric load function

Technical field

The invention relates to a railway scale weighing system, in particular to an embedded railway scale weighing system with an eccentric load carrying function.

Background technique

At present, most of the domestic railway scale measurement systems use the load cell full parallel mode, and then the signal of the sensor is transmitted to the industrial computer through signal amplification and A/D conversion. The industrial computer performs logical identification according to a certain algorithm to obtain the weight. . The main disadvantages of this structure are:

(1) The direction of the incoming vehicle cannot be discriminated, and the direction difference compensation cannot be performed;

(2) Since the sensors are all connected in parallel, in the event of a fault, it is not possible to find out which sensor problem immediately;

(3) The eccentricity detection function cannot be implemented;

(4) Due to the data acquisition and calculation by the industrial computer, it is also dynamic real-time control, which requires high real-time computer, and the WINDOWS system is a multi-tasking system. Therefore, the CPU usage is very high and it is not easy to implement multitasking.

When the industrial computer performs data collection and processing, the system resources are uniformly scheduled by the WINDOWS system. The application program cannot directly control the system resources. If advanced data processing algorithms are used, on the one hand, the system resources are occupied more, and the system burden is increased. The system runs slower. On the other hand, the operating system cannot provide enough resources to complete the corresponding data processing work within a limited time.

Summary of the invention

The object of the present invention is to solve the technical problem that the industrial control computer of the existing railway scale measuring system simultaneously performs data collection and processing, and interacts with the database management and the human-machine interface, and occupies more system resources.

To achieve the above object, the present invention provides an embedded track scale weighing system having an eccentric load carrying function, comprising a plurality of sensors and a signal processing system;

The plurality of sensors are configured to convert wheel weight information of the detected vehicle into an analog signal;

The signal processing system is configured to collect and process analog signals of wheel weight information output by the plurality of sensors, including a signal conditioning module, an embedded data acquisition module, a bus module, and a micro processing module;

The plurality of sensors are respectively connected to a plurality of inputs of the signal conditioning module;

The plurality of output ends of the signal conditioning module are respectively connected to the multiple input ends of the embedded data acquisition module; the embedded data acquisition module is configured to convert the analog signal of the wheel weight information into a digital signal of the wheel weight information And store;

The embedded data acquisition module is connected to the micro processing module through the bus module;

The micro processing module is configured to analyze the digital signal of the wheel weight information and calculate a result.

Preferably, the embedded data acquisition module comprises a multiple selection module, a channel selection control module, a logic control module, a clock generation module, an analog to digital conversion module and a storage module;

The multiple input ends of the multiple selection module are respectively connected to the multiple output ends of the input signal conditioning module;

The channel selection control module is configured to set a channel range of the data collection channel according to the number of the sensors, and output an address signal corresponding to the sensor to the multiple selection module;

The multiplex selection module is configured to strobe the one sensor according to the address signal, and transmit the wheel weight information analog signal collected by the one sensor to the analog to digital conversion module;

The analog-to-digital conversion module is configured to convert a wheel weight information analog signal collected by the one sensor into a digital signal, and transmit the data to the storage module for storage;

The clock generation module is configured to generate a plurality of clock signals by using a logic control module;

The logic control module is configured to provide the multi-path selection module, the channel selection control module, the analog-to-digital conversion module, and the state and control sequence logic required by the storage module, and control the multi-path selection module and the analog-to-digital conversion module to perform data Collecting and providing an interface timing of the storage module, and storing the digital signal of the wheel weight information collected by the plurality of sensors into the storage module.

The invention has the beneficial effects that the real-time data acquisition and processing part is separated from the database management and the human-machine interface part of the upper computer, thereby improving the reliability of sampling and processing part of the program without increasing the burden on the upper computer. Using the PC104 system, the signal acquisition work with real-time requirements is independently completed by the embedded data acquisition module, ensuring reliable and continuous sampling to meet real-time requirements. The embedded track scale weighing system with the function of measuring the partial load can independently process the data calculation work, and can improve the controllability and reliability of the data acquisition and processing process.

The invention can share the mechanical equipment of the existing weighing system. In the case that the mechanical equipment of the original weighing system is unchanged, only the parallel connection mode of the sensors in the original junction box can be changed to independent access, and the completion can be completed. The system is modified to judge the vehicle's over-eccentric load.

DRAWINGS

1 is a schematic structural view of an embedded track scale weighing system with an offset load function according to an embodiment of the present invention;

2 is a schematic structural diagram of an embedded data collection module according to Embodiment 2 of the present invention;

Figure 3 shows the workflow of the interrupt control mode of the present invention;

Figure 4 shows the workflow of the query mode of the present invention;

FIG. 5 is a schematic structural diagram of an embedded data acquisition module according to Embodiment 3 of the present invention; FIG.

FIG. 6 is a schematic structural diagram of an embedded data acquisition module according to Embodiment 4 of the present invention.

among them:

1-rail; 11~16-sensor; 2-signal processing system; 21-signal conditioning module; 22-embedded data acquisition module; 221-multiplex selection module; 222-channel selection control module; 223-logic control module; 2231-Sampling data access control module; 2223-interrupt control module; 224-clock generation module; 225-analog-to-digital conversion module; 226-storage module; 23-bus module; 24-microprocessing module; 25-power system; ~310 steps; 401~410 steps; 501~503 isolation circuit modules; 504-low pass filter modules; 601~ digital input and output modules.

detailed description

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Embodiment 1

Embodiment 1 is used to explain the structure in which the present invention is applied to continuous rail weighing.

Please refer to FIG. 1 , which is a schematic structural diagram of an embedded railway scale weighing system with an eccentric load function according to the present invention, which includes: a first sensor 11 , a second sensor 12 , a third sensor 13 , and a fourth sensor 14 . The five sensors 15, the sixth sensor 16 are respectively disposed at the lower portion of the rail 1 and are in full contact with the rail 1, converting the wheel weight information of the detected vehicle into an analog signal, and the signal processing system 2 for collecting and processing the plurality of The analog signal output by the sensor. A total of 12 sensors are provided in this embodiment, and preferably, only 16 sensors can be provided. The number of sensors does not limit the scope of protection of the present invention.

The plurality of sensors may be equal-distance pressure sensors or shear sensors. For example, the adjacent two sets of pressure sensors have a center distance of 760 mm, and the adjacent two sets of shear sensors have a center distance of 1520 mm on the other rail. The same sensor is also installed at the corresponding position. The above installation manner only illustrates one application of the embodiment, and does not limit the scope of protection of the present invention.

Alternatively, the present invention can also be applied to a conventional track-breaking weighing method, in which case the plurality of sensors are mounted in a base frame structure at the bottom of the track, and the wheel weight information of the vehicle is sensed by a mechanical weighing table.

As shown in FIG. 1, the signal processing system 2 is composed of a signal conditioning module 21, an embedded data acquisition module 22, a bus module 23, a micro processing module 24, and a power supply system 25.

The plurality of analog signals collected by the plurality of sensors are respectively connected to the plurality of input ends of the signal conditioning module 21, and the input signal conditioning module 21 separately performs amplification and filtering, and filters the high in the signal by using a low-pass filter. Frequency interference signal. In the first embodiment, the filtering and amplifying circuit of the signal conditioning module 21 selects an imported low-temperature drift, low-noise, high-reliability, high-integration AD chip, which has the advantages of high common mode rejection ratio and high precision. The filter adopts three-stage filtering such as active low-pass filter circuit and low-pass filtering of port components, which is used to eliminate high-frequency interference components contained in the output signals of multiple sensors. Therefore, the anti-interference ability is extremely strong, and the single-group signal transmission is solved. A problem that is susceptible, plus a potentiometer with zero adjustment and gain adjustment to ensure consistent performance across each group of signals.

The multiple outputs of the input signal conditioning module 21 are respectively coupled to the multiple inputs of the embedded data acquisition module 22. The embedded data acquisition module 22 converts the input analog signal into a digital signal and stores it. The embedded data acquisition module 22 is coupled to the microprocessor module 24 via a bus module 23.

The bus module 23 can be one of a PC104 bus, a PCI bus, a CAN bus, and an RS232 bus.

The power system 25 provides power to the signal conditioning module 21, the embedded data acquisition module 22, the bus module 23, and the microprocessor module 24, respectively.

The signal acquisition system 2 in the first embodiment can also be provided with a human-computer interaction interface (not shown in FIG. 1) for monitoring system operation status, displaying system operation parameters and collected data.

The signal acquisition system 2 in the first embodiment can also be provided with an Ethernet data interface (not shown in FIG. 1), connected to the upper computer through the Ethernet, and the micro processing module 24 communicates with the upper computer. The micro-processing module 24 outputs the serial number, total weight, vehicle speed, front-to-back partial load, and left-right partial load results to the upper computer, and separates the real-time signal acquisition and processing part from the database management and human-machine interface of the upper computer to improve sampling and processing. The reliability of some programs without increasing the burden on the host computer.

Embodiment 2

Embodiment 2 is used to illustrate an embodiment of the embedded data acquisition module 22 of the present invention.

As shown in FIG. 2, the embedded data acquisition module 22 is composed of a multiple selection module 221, a channel selection control module 222, a logic control module 223, a clock generation module 224, an analog to digital conversion module 225, and a storage module 226.

The clock generation module 224 is connected to the logic control module 223. The clock generation module 224 generates a plurality of clock signals through the logic control module 223, and provides a reference clock signal to the analog-to-digital conversion module 225, the channel selection control module 222, and the storage module 226 to ensure clock synchronization of each module.

The logic control module 223 provides various state and control sequence logics required by the multiple selection module 221, the channel selection control module 222, the analog to digital conversion module 225, and the storage module 226, including the sampling rate, the usage allocation of the storage module, and the start stop sampling. And transmitting data, enabling/disabling interrupts, etc., controlling the multiplex selection module 221 and the analog-to-digital conversion module 225 to perform data acquisition, and providing interface timing to the storage module 226 to implement storage of the converted data.

The logic control module 223 includes a sample data storage control module 2231 and an interrupt control module 2232. The sampling data storage control module 2231 is configured to control the analog-to-digital conversion module 225 for data conversion and storage; the interrupt control module 2232 is configured to generate an interrupt signal to the micro processing module 24, and transmit the digital information stored in the storage module 226 to the micro processing. In module 24.

The multiple input terminals of the multiple selection module 221 are connected to the multiple output terminals of the input signal conditioning module 21, respectively.

The channel selection control module 222 sets the channel range of the data acquisition channel according to the number of sensors actually installed. Each data acquisition channel corresponds to one sensor. In the second embodiment, the data acquisition channel is 12 channels. Preferably, the data acquisition channel can be 16 channels corresponding to the setting of the sensor.

The channel selection control module 222 outputs an address signal to the demultiplexing module 221 under the control of the logic control module 223 for selecting information from a certain sensor of the corresponding address signal. The channel selection control module 222 also provides the storage module 226 with corresponding address signals of each group of sensors to store the analog-to-digital conversion result, so that each set of data signals in the storage module 226 is in one-to-one correspondence with each group of sensors.

The multiplex selection module 221 selects one of the output multiplex signals according to the binary address signal input by the channel selection control module 222.

The analog to digital conversion module 225 performs sampling of the input analog signal, quantizes it into a digital signal, and transmits a conversion completion flag to the logic control module 223. The sampled data storage control module 2231 sends a read signal to the analog to digital conversion module 225, and stores the converted digital signal in the storage module 226. So far, the storage module 226 stores digital signals from a certain set of sensors, and address signals corresponding to the set of sensors.

To prevent the storage module 226 from overflowing when the digital signals collected and stored in the storage module 226 reach a certain amount, the micro-processing module 24 will read the digital signals in the storage module 226 and empty the storage module 226. There are two ways to achieve this: interrupt control mode and query mode.

Among them, the interrupt control method is as follows:

The storage module 226 sends a read request signal to the logic control module 223 according to its own storage state.

The logic control module 223 sends an interrupt signal to the bus module 23 according to the read request signal of the storage module 226, the micro-processing module 24 calls the interrupt program, and the logic control module 223 transmits the data in the storage module 226 to the micro-processing module through the bus module 23. 24, complete the download of the data in the storage module 226, and complete the processing and analysis of the data in the subsequent procedures, calculate the weight of the vehicle, determine the vehicle type, determine the direction of the incoming vehicle, and determine whether the train is overloaded or eccentric.

Among them, the query method is as follows:

The microprocessor module 24 sends a query command to the logic control module 223 via the bus module 23, setting the query status to one. The logic control module 223 reads the digital information in the storage module 226 according to the query command, and transmits the digital information to the micro processing module 24 through the bus module 23. The micro processing module 24 completes the processing and analysis of the data in the subsequent program, calculates the vehicle weight, and determines the vehicle type. Determine the direction of the car, and determine whether the train is overloaded or eccentric.

When the vehicle passes the embedded track scale weighing system with the eccentric load function of the present invention, the wheel weight (bogie) information of the detected vehicle is converted into a proportional analog voltage signal by a plurality of sensors, and transmitted to the signal conditioning module 21 Corresponding channels, the signal is amplified and filtered. A/D conversion, data acquisition and storage, and data uploading are performed by the embedded data acquisition module 22, and the receiving and saving of the uploaded data is performed by a host computer (server) external to the system.

Preferably, in the second embodiment, the analog to digital conversion module 225 has an accuracy of 12 bits and a sampling rate of 100 kHz.

Preferably, in the second embodiment, the clock generation module 224 is a 40 MHz crystal oscillator.

Preferably, in the second embodiment, the bus module 23 is a PC104 bus.

Preferably, in the second embodiment, the storage module 226 uses FIFO (First In First) Out first-in first-out) memory to achieve. Data transfer control is performed using the status flag signal of the FIFO memory. When the data stored in the FIFO memory is in a half full state, a read request signal is sent to the logic control module 223.

Preferably, in the second embodiment, the logic control module 223 is composed of an FPGA (Field Programmable Gate). Array, Field Programmable Gate Array), FPGA as a separate control execution module, provides clocks for other working modules by dividing the frequency, and also controls the normal operation of all parts of the hardware circuits connected by other modules. By writing the corresponding VHDL (VHSIC Hardware Description Language, the very high-speed integrated circuit hardware description language) code, generates the corresponding operation circuit, realizes the latching, judgment and processing of the signal, and the execution of various command signals and the control of the output signal.

The invention adopts the architecture of the micro processing module and the FPGA to realize a high speed, high precision and low cost data acquisition scheme. After the multi-channel analog signal passes through the signal conditioning module 21 and the multiplex selection module 221, the analog-to-digital conversion module 225 is input, and the analog-to-digital conversion module 225 performs A/D (Analog/Digital) conversion under the control of the FPGA, and converts the converted The result is sent to the FIFO (First In First Out FIFO) memory. The microprocessor module is used for system control and data processing, and the FPGA is used to control data acquisition and data buffering. The input analog signal is converted into a digital signal by the analog-to-digital conversion module 225, and is buffered by the FIFO memory controlled by the FPGA, and the collected data is received by the micro processing module through the PC104 bus in an interrupt or query manner, and the micro processing module collects the data again. The data is processed and analyzed. The real-time data acquisition and processing part is separated from the database management and human-machine interface of the host computer to improve the reliability of sampling and processing part of the program without increasing the burden on the host computer.

FIG. 3 and FIG. 4 are diagrams showing the workflow of the embedded track scale weighing system with the eccentric load function according to the second embodiment of the present invention.

FIG. 3 is a workflow diagram when the microprocessor module 24 is set to the interrupt control mode. Including steps:

In step 301, the system is powered on, and the microprocessor module 24 starts the system through the bus module 23.

In step 302, the system is initialized, and the logic control module 223 sets the sampling frequency, allocates the use space to the storage module 226, and sets the channel range of the channel selection control module 222.

In step 303, the microprocessing module 24 sets the interrupt handling function and saves the interrupt vector.

In step 304, the microprocessing module 24 activates the data acquisition module 22.

Step 305, the channel selection control module 222 performs channel selection, and selects an address signal of a certain sensor to the multiplexing module 221 .

Step 306, the logic control module 223 starts the data acquisition module 22, and stores the collected digital signal of the sensor in the storage module 226, wherein the storage module 226 stores the digital signal from the sensor, and the address signal corresponding to the sensor. .

In step 307, the logic control module 223 determines whether to convert the data acquisition channel. If yes, go to step 305. If no, go to step 308.

Step 308, the storage module 226 sends a read request to the logic control module 223 according to its storage state, the logic control module 223 generates an interrupt signal to notify the micro-processing module 24, the micro-processing module 24 calls the interrupt program, and the data in the storage module 226 is The data transmission module is transmitted to the microprocessing module 24.

In step 309, the micro processing module 24 determines whether to continue detecting according to an external command. If yes, step 305 is performed; if not, step 310 is executed to end.

FIG. 4 is a workflow diagram when the micro processing module 24 is set to the query mode. Including steps:

In step 401, the system is powered on, and the microprocessor module 24 starts the system through the bus module 23.

In step 402, the system is initialized, and the logic control module 223 sets the sampling frequency, allocates the use space to the storage module 226, and sets the channel range of the channel selection control module 222.

In step 403, the microprocessor module 24 activates the data acquisition module 22.

Step 404, the channel selection control module 222 performs channel selection, and selects an address signal of a certain sensor to the multiplexing module 221 .

Step 405: Store the collected digital signal of a certain sensor in the storage module 226.

In step 406, the logic control module 223 determines whether to convert the data acquisition channel. If yes, go to step 404. If no, go to step 407.

In step 407, the logic control module 223 receives the query command issued by the micro processing module 24.

Step 408, the logic control module 223 reads the storage module 226, and the data in the storage module 226 is transmitted to the micro processing module 24 via the data transmission module.

In step 409, the micro processing module 24 determines whether to continue detecting according to an external command. If yes, step 403 is performed; if not, step 410 is performed, and the process ends.

After acquiring the detection signal from the sensor, the micro processing module 24 identifies the weight of each wheel based on the address information corresponding to the plurality of sensors.

The weights of the wheels under the front bogie of each train are added, and the weights of the wheels under the rear bogie of each train are added, and then the difference is obtained. The difference between the weights exceeds 10 tons, which is the front and rear wheel misalignment. . Secondly, calculate the weight LW of all the wheels on the left side of each car and all the weights RW of the right wheel. According to the weights LW and RW, and the distance between the wheel and the middle section of the car, calculate the center of gravity position DW of the cargo, if the center of gravity position DW and the car If the distance of the section is greater than 100mm, it is considered to be the left and right wheelsets. Again, calculate the sum of the weights of all the wheels of each car, over 84 tons is overweight.

When the vehicle passes the detection system, the force of each sensor is different. Since each sensor is separately connected, the direction of the vehicle can be judged according to the change of the wheel weight collected by the plurality of sensors.

Embodiment 3

Embodiment 3 is used to illustrate still another embodiment of the embedded data acquisition module 22 of the present invention.

Different from the second embodiment, the isolation circuit module is added in the third embodiment.

Isolation circuit modules can transfer signals between different modules using transformers, optoelectronic or capacitive coupling to avoid direct electrical or physical connections. Since the equipment monitored by the embedded track scale weighing system with the eccentric load function may exhibit high voltage transients, such as lightning strikes, the isolation circuit module is used to isolate multiple sensor signals from the embedded data acquisition module 22 to ensure data acquisition. The security of the module. In addition, the environment of the embedded track scale weighing system with offset load function can generate a lot of interference, such as space electromagnetic interference, etc. The isolation circuit module can eliminate the influence of these interferences.

As shown in FIG. 5, a plurality of isolation circuit modules are disposed in the embedded data acquisition module 22. The isolation circuit module 501 is disposed between the multiple selection module 221 and the channel selection control module 222. An isolation circuit module 502 is disposed between the analog-to-digital conversion module 225 and the logic control module 223, and an isolation circuit module 503 is disposed between the analog-to-digital conversion module 225 and the storage module 226.

Preferably, the isolation circuit module uses a photocoupler device. Photoelectric coupling devices can reliably isolate signals and easily form multiple functional states, such as signal isolation, isolated driving, and long-distance transmission.

Preferably, a low-pass filtering module 504 is disposed between the multiplexing module 221 and the analog-to-digital conversion module 225 for filtering high-frequency components in the signal to remove interference caused by some of the detected uncertain signals to the useful signal. And suppress or eliminate the impact of multi-path aliasing on data acquisition. The low pass filtering module 504 can employ an RC low pass filter.

Embodiment 4

Embodiment 4 is used to illustrate still another embodiment of the embedded data acquisition module 22 of the present invention.

Different from the second embodiment, the digital input/output module 601 is added to the fourth embodiment, and the digital input/output module 601 is connected to the logic control module 223 for collecting external switch signals and providing input and output of the switch quantity. Reserved auxiliary function interfaces such as external relays and proximity switches.

The digital input/output module 601 can be connected to a proximity switch mounted on the track to control the input and output of the external relay, calculate the wheelbase of the vehicle, and determine the vehicle type.

Industrial applicability

The invention separates the real-time signal acquisition and processing part from the database management and the human-machine interface part of the upper computer, and improves the reliability of sampling and processing part of the program without increasing the burden of the upper computer. Using the PC104 system, the signal acquisition work with real-time requirements is independently completed by the embedded data acquisition module, ensuring reliable and continuous sampling to meet real-time requirements. The embedded track scale weighing system with the function of measuring the partial load can independently process the data calculation work, can improve the controllability and reliability of the data acquisition and processing process, and has industrial applicability.

Claims

Claims:

1. An embedded track scale weighing system with an eccentric load function, comprising: a plurality of sensors and a signal processing system;

The plurality of sensors are configured to convert wheel weight information of the detected vehicle into an analog signal;

The signal processing system is configured to collect and process analog signals of wheel weight information output by the plurality of sensors, including a signal conditioning module, an embedded data acquisition module, a bus module, and a micro processing module;

The plurality of sensors are respectively connected to a plurality of inputs of the signal conditioning module;

The plurality of output ends of the signal conditioning module are respectively connected to the multiple input ends of the embedded data acquisition module; the embedded data acquisition module is configured to convert the analog signal of the wheel weight information into a digital signal of the wheel weight information And store;

The embedded data acquisition module is connected to the micro processing module through the bus module;

The micro processing module is configured to analyze the digital signal of the wheel weight information and calculate a result.

2 . The embedded track scale weighing system with an eccentric load function according to claim 1 , wherein the embedded data acquisition module comprises a multiple selection module, a channel selection control module, a logic control module, and a clock generation. Module, analog to digital conversion module and storage module;

The multiple input ends of the multiple selection module are respectively connected to the multiple output ends of the input signal conditioning module;

The channel selection control module is configured to set a channel range of the data collection channel according to the number of the sensors, and output an address signal corresponding to the sensor to the multiple selection module;

The multiplex selection module is configured to strobe the one sensor according to the address signal, and transmit the wheel weight information analog signal collected by the one sensor to the analog to digital conversion module;

The analog-to-digital conversion module is configured to convert a wheel weight information analog signal collected by the one sensor into a digital signal, and transmit the data to the storage module for storage;

The clock generation module is configured to generate a plurality of clock signals by using a logic control module;

The logic control module is configured to provide the multi-path selection module, the channel selection control module, the analog-to-digital conversion module, and the state and control sequence logic required by the storage module, and control the multi-path selection module and the analog-to-digital conversion module to perform data Collecting and providing the interface timing of the storage module

The digital signals of the wheel weight information collected by the plurality of sensors are stored in the storage module.

The embedded track scale weighing system with the eccentric load function of claim 2, wherein the micro processing module is further configured to read the wheel weight information stored in the storage module in an interrupt control manner. Digital signal.

4. The embedded track scale weighing system with an eccentric load carrying function according to claim 3, wherein the storage module is configured to send a read request signal to the logic control module according to its storage state;

The logic control module is further configured to send an interrupt signal to the bus module according to the read request signal;

The microprocessor module is further configured to invoke an interrupt program, and the logic control module is further configured to transmit data in the storage module to the micro processing module.

5. The embedded track scale weighing system with the eccentric load function of claim 2, wherein the micro processing module is further configured to read the digital signal of the wheel weight information stored in the storage module in a query manner. .

6. The embedded track scale weighing system of claim 5, wherein the microprocessor module is further configured to send a query instruction to the logic control module, where the logic control module is further used to Transmitting data in the storage module to the microprocessing module.

7 . The embedded track scale weighing system with an eccentric load function according to claim 1 , wherein the signal acquisition system is configured to set an Ethernet interface, and the micro processing module passes the analysis result through the The Ethernet interface is connected to the host computer.

8. The embedded track scale weighing system with the eccentric load function according to claim 1, wherein the microprocessor module is further configured to calculate the total weight, the vehicle speed, the front and rear eccentric loads, and the left and right eccentric loads.

9. The embedded track scale weighing system with an eccentric load carrying function according to claim 2, wherein a first isolation circuit module is disposed between the multiplex selection module and the channel selection control module.

10. The embedded track scale weighing system with an eccentric load carrying function according to claim 2, wherein a second isolation circuit module is disposed between the analog to digital conversion module and the logic control module.

11. The embedded track scale weighing system with an offset load function according to claim 2, wherein a third isolation circuit module is disposed between the analog to digital conversion module and the storage module.

12. The embedded track scale weighing system with an eccentric load carrying function according to claim 2, wherein the logic control module is connected to the digital input and output module and is also used for collecting an external switch quantity signal.