CN104236613A - Portable monitoring, diagnosing and on-site verifying system for sensing devices on highway network - Google Patents
Portable monitoring, diagnosing and on-site verifying system for sensing devices on highway network Download PDFInfo
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Abstract
The invention provides a portable monitoring, diagnosing and on-site verifying system for sensing devices on a highway network. The system can be used for conveniently diagnosing and verifying the sensing devices on the highway network. The system comprises a portable on-site signal access system, a portable standard source integration system and a portable signal dynamic analysis system. The portable on-site signal access system is used for reviving actually-measured data of various indexes collected by the sensing devices arranged on the highway network and transmitting the actually-measured data to the portable signal dynamic analysis system. The portable standard source integration system is provided with the multiple sensing devices and used for collecting standard data of indexes of highways and transmitting the standard data to the portable signal dynamic analysis system. The portable signal dynamic analysis system is used for comparing, calculating and analyzing the standard data and the actually-measured data so as to achieve monitoring, diagnosing and on-site verifying of the sensing devices on the highway network.
Description
Technical Field
The invention relates to the technical field of transportation, in particular to a portable monitoring, diagnosing and on-site calibrating system for road network sensing equipment.
Background
The foreign research on the equipment state monitoring and fault diagnosis technology starts in the 60 th century of the 20 th century, and is rapidly developed in the seventh and eighty years of the last century, and the equipment fault diagnosis technology is one of basic measures for ensuring the safe and reliable operation of equipment. The large and medium-sized process industries in developed industrial countries such as the United states, the Japan, the Germany, the English and the like almost have a hundred percent of state monitoring and fault diagnosis systems, and the large and medium-sized process industries such as the petrochemical industry, the steel industry, the metallurgy industry, the electric power industry and the like are taken as representatives in China, and quite good results are obtained in the aspect of development of monitoring and fault diagnosis work. In recent years, research works in this field are further developed, for example, the li national wonders in 2002 develops research on a network-based device remote monitoring and diagnosis technology, the major paper in liwenka in 2003 develops research on a network-based device state online monitoring and fault diagnosis system for a steam turbine generator unit of a thermal power plant of a petrochemical company, and the leigh maoks paper in 2008 develops research on a transformer online monitoring and fault diagnosis system. The Li Shi paper in 2004 is about development research and application of an online monitoring and fault diagnosis system of equipment based on an enterprise network, the Sunpheng Soppe in 2006 is about research and implementation of a large-scale rotating mechanical vibration monitoring and fault diagnosis knowledge system, and the Xieda engineering Soppe paper in 2008 is about research about an online monitoring and fault diagnosis system of capacity equipment of a transformer substation.
The existing equipment state monitoring and fault diagnosis technology is mainly developed for large and medium-sized process industries, rotating machinery and automobiles, and the research is mainly carried out according to a remote mode, but the state monitoring and fault diagnosis research of the road network sensing equipment is not found, and the technology related to a portable monitoring and diagnosis and field verification system of the road network sensing equipment is not available. In recent years, the mileage of Chinese roads, particularly expressways, is rapidly increased and forms networks, the technical level is continuously improved, and particularly the construction strength of intelligent detection systems for basic structures, dynamic characteristics and environmental characteristics is gradually enhanced, so that the operation safety is ensured, and the operation efficiency and the management level are improved. With the increase of the road network sensing equipment, the sound of the equipment and the detection precision are emphasized, and a corresponding road network sensing equipment on-line diagnosis and verification system is urgently needed.
Disclosure of Invention
The invention aims to provide a portable monitoring, diagnosing and on-site calibrating system for road network sensing equipment, which can conveniently diagnose and calibrate the sensing equipment on a road network.
The technical scheme for realizing the invention is as follows:
a portable monitoring diagnosis and on-site verification system for road network sensing equipment comprises a portable on-site signal access system, a portable standard source integration system and a portable signal dynamic analysis system; wherein
The portable field signal access system is used for receiving measured data of each index collected by sensing equipment arranged on a highway network and transmitting the measured data to the portable signal dynamic analysis system;
the portable standard source integration system is provided with a plurality of sensing devices and is used for acquiring standard data of each index on a highway and transmitting the standard data to the portable signal dynamic analysis system;
the portable signal dynamic analysis system is used for carrying out comparison calculation analysis on the standard data and the actually measured data to realize monitoring diagnosis and field verification on each sensing device on the highway network; wherein
The portable signal dynamic analysis system mainly comprises a signal receiving module, a multi-channel signal processing module, an RAM/ROM module, a PC/104plus, an ARM processor, a data credibility calculation module, an IDE hard disk, a TFT touch screen and a field verification result wireless transmission module; wherein
The signal receiving module is used for receiving the standard data and the measured data and transmitting the standard data and the measured data to the multi-channel signal processing module;
the multichannel signal processing module is used for performing anti-aliasing filtering and sampling on the received data and then storing a sampling result in the RAM/ROM module;
the ARM processor is used for acquiring data stored in the RAM/ROM module through the PC/104plus, calculating n types of corresponding standard characteristic values and actual measurement characteristic values of each standard data and each actual measurement data, and transmitting the calculated results to the data credibility calculation module;
the data credibility calculation module is used for calculating the credibility C of the measured data according to the formula (1), transmitting the credibility C to the field verification result wireless transmission module through the ARM processor, and simultaneously transmitting the credibility C to the IDE hard disk for storage;
in the formula I1,I2,…,InFor n types of measured characteristic values, Q1,Q2,…,QnFor n types of standard characteristic values, alpha1,α2,…,αnWeights set for the n types of feature values;
the TFT touch screen is used for providing a human-computer interaction interface, setting or updating weights corresponding to the n types of characteristic values through the TFT touch screen, and displaying the reliability C through the TFT touch screen;
and the field verification result wireless transmission module is used for transmitting the calculated credibility C to a server with a fixed IP, and realizing field monitoring diagnosis and verification of each sensor on the highway network according to the credibility C.
Further, in the present invention, n is 3, 3 types are included in 18 types in the following Table 1,
TABLE 1 eigenvalue types
| 0 | Peak value (EQ) | 4 | Peak value of true peak | 8 | Average amplitude | 12 | Pulse factor | 16 | Skewness index |
| 1 | Effective value | 5 | Standard deviation of | 9 | Square root amplitude | 13 | Margin factor | 17 | Kurtosis index |
| 2 | Peak to peak value | 6 | Mean value of | 10 | Form factor | 14 | Skewness factor | ||
| 3 | True peak value | 7 | Maximum peak value | 11 | Crest factor | 15 | Crest factor |
Furthermore, the portable standard source integrated system mainly comprises a standard source system comprising a plurality of sensing devices, a multi-channel signal interface, an intelligent digital instrument display module and a signal transmission output module; wherein
The standard source system is used for acquiring standard data of each index on a highway and then transmitting the standard data to the intelligent digital instrument display module through the multi-channel signal interface;
the intelligent digital instrument display module is used for displaying the received standard data on one hand and transmitting the received standard data to the signal transmission output module on the other hand;
and the signal transmitting and outputting module is used for transmitting the received standard data to the signal dynamic analysis system.
Furthermore, the portable field signal access system comprises a wireless transmitting terminal and a wired converting terminal, and the received measured data is transmitted to the signal dynamic analysis system through the wireless transmitting terminal or the received measured data is transmitted to the signal dynamic analysis system through the wired converting terminal.
Furthermore, the signal receiving module comprises a wireless signal receiving and protocol analyzing module and a direct current voltage signal amplifying and analog-to-digital conversion module;
the wireless signal receiving and protocol analyzing module is used for establishing communication with the wireless transmitting terminal, analyzing the received measured data and transmitting the analyzed measured data to the signal processing module;
and the direct-current voltage signal amplifying and analog-to-digital conversion module is used for establishing communication with the wired conversion terminal and the signal transmitting and outputting module, amplifying and performing analog-to-digital conversion on the received measured data and standard data and then transmitting the amplified and converted data to the signal processing module.
Furthermore, the system for dynamically analyzing signals further comprises a CF card connected with the ARM processor, wherein the CF card is used for storing relevant data generated in the ARM processor.
Has the advantages that:
the invention realizes the field state monitoring and fault diagnosis of the road network sensing equipment by comparing and analyzing the measured data and the standard data, ensures the accuracy of the measuring result of the road network sensing equipment and reduces the failure of the equipment, thereby further enhancing the scientificity and the credibility of the road network running state monitoring and analyzing data and improving the reliability and the accuracy of the road network running state supervision.
Drawings
FIG. 1 is a schematic structural diagram of a portable monitoring, diagnosing and on-site verification system for road network sensing equipment;
FIG. 2 is a diagram of a portable monitoring, diagnosing and on-site verification system for road network sensing equipment;
FIG. 3 illustrates the appearance and interface functions of a portable monitoring, diagnosing and field verification system for road network sensing equipment;
fig. 4 clicks on the eigenvalue information display of "data confidence calculation".
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the present invention is a portable monitoring, diagnosing and on-site calibrating system for road network sensing equipment, which comprises a portable on-site signal access system, a portable standard source integration system and a portable signal dynamic analysis system; wherein,
and the field signal access system is used for receiving the actual measurement data of each index collected by the sensing equipment arranged on the road network and transmitting the actual measurement data to the portable signal dynamic analysis system.
In the invention, the sensing equipment arranged on the highway network is an object for monitoring diagnosis and field calibration, so that the portable field signal access system is adopted to collect data collected by the object to be diagnosed and calibrated (namely the sensing equipment on the highway network), and whether the sensing equipment arranged on the highway network is normal or not is judged according to the data. Current sensing devices on the road network typically measure air temperature, air pressure, humidity, wind speed, wind direction, visibility, and the like.
The portable standard source integration system is provided with a plurality of sensing devices and is used for collecting standard data of each index on a highway and transmitting the standard data to the portable signal dynamic analysis system.
The portable standard source integrated system is provided with a plurality of sensing devices for measuring temperature, air pressure, humidity, wind speed, wind direction, visibility and the like on a road; because the sensing equipment arranged on the portable standard source integrated system is calibrated by metering, the measured value is close to the real value, and the measured data is defined as standard data.
The portable signal dynamic analysis system is used for carrying out comparison calculation analysis on the standard data and the actually measured data to realize monitoring diagnosis and field verification on each sensing device on the highway network; the portable signal dynamic analysis system mainly comprises a signal receiving module, a multi-channel signal processing module, an RAM/ROM module, a PC/104plus, an ARM processor, a data credibility calculation module, an IDE hard disk, a TFT touch screen and a field verification result wireless transmission module.
And the signal receiving module is used for receiving the standard data and the measured data and transmitting the standard data and the measured data to the multi-channel signal processing module. The multichannel signal processing module is used for performing anti-aliasing filtering and sampling on the received data and then storing a sampling result in the RAM/ROM module; the ARM processor is used for acquiring data stored in the RAM/ROM module through the PC/104plus, calculating n types of corresponding standard characteristic values and actual measurement characteristic values of each standard data and each actual measurement data, and transmitting the calculated results to the data credibility calculation module; the data credibility calculation module is used for calculating the credibility C of the measured data according to the formula (1), transmitting the credibility C to the field verification result wireless transmission module through the ARM processor, and simultaneously transmitting the credibility C to the IDE hard disk for storage;
in the formula I1,I2,…,InFor n types of measured characteristic values, Q1,Q2,…,QnFor n types of standard characteristic values, alpha1,α2,…,αnWeights set for the n types of feature values; the TFT touch screen is used for providing a human-computer interaction interface, setting or updating weights corresponding to the n types of characteristic values through the TFT touch screen, and displaying the reliability C through the TFT touch screen; and the field verification result wireless transmission module is used for sending the calculated credibility C to a server with a fixed IP address, and providing support for monitoring, diagnosing, verifying and deciding the road network sensing equipment.
The ARM processor calculates n types of standard characteristic values and actual measurement characteristic values corresponding to each standard data and each actual measurement data; table 1 gives 18 types of feature values.
TABLE 1 eigenvalue types
| 0 | Peak value (EQ) | 4 | Peak value of true peak | 8 | Average amplitude | 12 | Pulse factor | 16 | Skewness index |
| 1 | Effective value | 5 | Standard deviation of | 9 | Square root amplitude | 13 | Margin factor | 17 | Kurtosis index |
| 2 | Peak to peak value | 6 | Mean value of | 10 | Form factor | 14 | Skewness factor | ||
| 3 | True peak value | 7 | Maximum peak value | 11 | Crest factor | 15 | Crest factor |
As shown in fig. 4, for example, in the present embodiment, according to the characteristics of each data, 3 types of feature values are selected, for example, the corresponding peak value, average amplitude value, and standard deviation of the measured data are calculated; calculating corresponding peak value, average amplitude and standard deviation of the standard data; then transmitting the calculation result to an ARM processor, and calculating the credibility C by the ARM processor according to the transmitted value;
the confidence C { (1 eigenvalue weight × (1 st measured eigenvalue + 2 nd eigenvalue weight × (2 nd measured eigenvalue + 3 rd eigenvalue weight × (3 rd measured eigenvalue)/(1 st eigenvalue weight × (1 st standard eigenvalue + 2 nd eigenvalue weight × (2 nd standard eigenvalue + 3 rd eigenvalue weight) } 100%
According to the invention, the sensing equipment on the road network is monitored according to the credibility C, for example, when the C is close to 100%, the measured data is similar to the standard data, and at the moment, the working personnel can think that the working condition of the sensing equipment on the road network is good. For example, when C is much less than 100%, it indicates that the measured data is very different from the standard data, and the worker may consider that the measurement result of the sensing device on the road network is no longer accurate, and need to replace or repair the sensing device.
As shown in fig. 3, in order to enable the staff to directly check the standard values of the indexes on the highway on the portable standard source integrated system, the portable standard source integrated system of the present invention adopts the following design, namely, the portable standard source integrated system mainly comprises a standard source system comprising a plurality of sensing devices, a multi-channel signal interface, an intelligent digital instrument display module and a signal transmission output module; wherein
The standard source system is used for acquiring standard data of each index on a highway and then transmitting the standard data to the intelligent digital instrument display module through the multi-channel signal interface;
the intelligent digital instrument display module is used for displaying the received standard data on one hand and transmitting the received standard data to the signal transmission output module on the other hand;
and the signal transmitting and outputting module is used for transmitting the received standard data to the signal dynamic analysis system.
In order to increase the reliability of communication between the portable field signal access system and the portable signal dynamic analysis system, the portable field signal communication system is provided with a wireless transmitting terminal and a wired conversion terminal, and the received measured data is transmitted to the signal dynamic analysis system through the wireless transmitting terminal or the received measured data is transmitted to the signal dynamic analysis system through the wired conversion terminal. The wireless transmitting terminal can adopt wireless forms such as WiFi and 3G networks. Meanwhile, a signal receiving module on the portable signal dynamic analysis system comprises a wireless signal receiving and protocol analysis module and a direct-current voltage signal amplifying and analog-to-digital conversion module; the wireless signal receiving and protocol analyzing module is used for establishing communication with the wireless transmitting terminal, analyzing the received measured data and transmitting the analyzed measured data to the signal processing module; and the direct-current voltage signal amplifying and analog-to-digital conversion module is used for establishing communication with the wired conversion terminal and the signal transmitting and outputting module, amplifying and converting analog data and standard data of the received measured data and the received standard data and transmitting the amplified and converted data and the standard data to the signal processing module.
The signal dynamic analysis system of the invention can also comprise a CF card for storing the data generated by the ARM.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A portable monitoring diagnosis and on-site verification system for road network sensing equipment is characterized by comprising a portable on-site signal access system, a portable standard source integration system and a portable signal dynamic analysis system; wherein
The portable field signal access system is used for receiving measured data of each index collected by sensing equipment arranged on a highway network and transmitting the measured data to the portable signal dynamic analysis system;
the portable standard source integration system is provided with a plurality of sensing devices and is used for acquiring standard data of each index on a highway and transmitting the standard data to the portable signal dynamic analysis system;
the portable signal dynamic analysis system is used for carrying out comparison calculation analysis on the standard data and the actually measured data to realize monitoring diagnosis and field verification on each sensing device on the highway network; wherein
The portable signal dynamic analysis system mainly comprises a signal receiving module, a multi-channel signal processing module, an RAM/ROM module, a PC/104plus, an ARM processor, a data credibility calculation module, an IDE hard disk, a TFT touch screen and a field verification result wireless transmission module; wherein
The signal receiving module is used for receiving the standard data and the measured data and transmitting the standard data and the measured data to the multi-channel signal processing module;
the multichannel signal processing module is used for performing anti-aliasing filtering and sampling on the received data and then storing a sampling result in the RAM/ROM module;
the ARM processor is used for acquiring data stored in the RAM/ROM module through the PC/104plus, calculating n types of corresponding standard characteristic values and actual measurement characteristic values of each standard data and each actual measurement data, and transmitting the calculated results to the data credibility calculation module;
the data credibility calculation module is used for calculating the credibility C of the measured data according to the formula (1), transmitting the credibility C to the field verification result wireless transmission module through the ARM processor, and simultaneously transmitting the credibility C to the IDE hard disk for storage;
in the formula I1,I2,…，InFor n types of measured characteristic values, Q1,Q2,…，QnFor n types of standard characteristic values, alpha1,α2,…,αnWeights set for the n types of feature values;
the TFT touch screen is used for providing a human-computer interaction interface, setting or updating weights corresponding to the n types of characteristic values through the TFT touch screen, and displaying the reliability C through the TFT touch screen;
and the field verification result wireless transmission module is used for transmitting the calculated credibility C to a server with a fixed IP, and realizing field monitoring diagnosis and verification of each sensor on the highway network according to the credibility C.
2. The portable monitoring, diagnostic and field-verification system for road network sensing equipment of claim 1, wherein said n is 3, 3 types are included in the 18 types in Table 1,
TABLE 1 eigenvalue types
3. The portable monitoring, diagnosing and on-site verification system for road network sensing equipment as claimed in claim 1, wherein said portable standard source integration system is mainly composed of a standard source system including a plurality of sensing equipments, a multi-channel signal interface, an intelligent digital instrument display module and a signal transmission output module; wherein
The standard source system is used for acquiring standard data of each index on a highway and then transmitting the standard data to the intelligent digital instrument display module through the multi-channel signal interface;
the intelligent digital instrument display module is used for displaying the received standard data on one hand and transmitting the received standard data to the signal transmission output module on the other hand;
and the signal transmitting and outputting module is used for transmitting the received standard data to the signal dynamic analysis system.
4. The portable monitoring, diagnosing and on-site verification system for road network sensing equipment as claimed in claim 3, wherein said portable on-site signal access system comprises a wireless transmitting terminal and a wired converting terminal, and transmits the received measured data to the signal dynamic analysis system through the wireless transmitting terminal or transmits the received measured data to the signal dynamic analysis system through the wired converting terminal.
5. The portable monitoring, diagnosing and on-site verification system for road network sensing equipment as claimed in claim 4, wherein said signal receiving module comprises a wireless signal receiving and protocol analyzing module and a DC voltage signal amplifying and analog-to-digital converting module;
the wireless signal receiving and protocol analyzing module is used for establishing communication with the wireless transmitting terminal, analyzing the received measured data and transmitting the analyzed measured data to the signal processing module;
and the direct-current voltage signal amplifying and analog-to-digital conversion module is used for establishing communication with the wired conversion terminal and the signal transmitting and outputting module, amplifying and performing analog-to-digital conversion on the received measured data and standard data and then transmitting the amplified and converted data to the signal processing module.
6. The portable monitoring, diagnostic and in-situ verification system for road network sensing equipment of claim 1, further comprising a CF card connected to the ARM processor, the CF card being configured to store relevant data generated in the ARM processor.
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Application publication date: 20141224 |