Solution

Application of RFID Technology in Power Network Asset Safety Management


project description:

1) Acquisition equipment selection

RFID technology used in power grid asset tracking management will use a large number of handheld collection terminal on-site physical identification of information collection, due to the electromagnetic field environment, you need to consider the terminal equipment, anti-interference, read and write distance, stability, reliability and other factors .


(1) anti-interference factors. Substation equipment in the operating environment, will have a power frequency electric field and power frequency magnetic field, power frequency electromagnetic field interference is low-frequency induction field interference. Because the signal inside the hand-held terminal does not use the earth as the return path, the electromagnetic protection design of the reader should be considered in the hand-held terminal design.


(2) read and write distance. Grid physical identification installation location are generally flat on the base of the device flat iron, and left a certain height of the ground to facilitate the operator to read and write data, therefore, handheld read and write distance away from the assets to reduce the walking distance of inspectors and reduce work intensity , To improve the inspection efficiency is of great significance.


(3) handheld device battery life. 220kV and above substation covers a larger area, more equipment, and logo implementation of the installation of a long time, therefore, the handheld battery must have a longer life, and automatically save the data after power down to ensure that staff work in the field without worries .


2) physical identification performance

RFID physical identification bar code does not have the waterproof, antimagnetic, high temperature, long service life, read a large distance, the data can be encrypted, the amount of stored data, the stored information can be modified, etc., has been widely used in power grid asset tracking management on. Therefore, for asset tracking management basically use ISO18000-6B metal logo. Power grid equipment perennial outdoor and high temperature environment, the logo design and material selection should take full account of UV protection, read and write distance, multi-tag reading and other factors.


(1) read and write distance. In the substation UHF electromagnetic environment, the metal surface has a shielding effect on the electromagnetic wave. When the antenna inside the mark is close to the metal surface, the performance of the antenna may be obviously deteriorated. After the field application test, the signal will drastically degrade after attaching the grounding flat iron surface, and the reading and writing distance will be reduced by 50% ~ 70%. Therefore, the problem of reading and writing distance should be taken into consideration when designing the logo, packaging and labeling materials .


(2) anti-ultraviolet. At present, UHF passive electronic identification packaging shell commonly used ABS material, the logo has been installed on the return visit, the electronic logo long-term in the substation wind and sun, easy to fade, therefore, in the identification of shell packaging to add anti-UV materials.


(3) anti-collision mechanism. In order to speed up asset inventory and inspection speed, physical identification must consider the anti-collision algorithm in design to realize the function of multi-label batch, fast and accurate reading in each working area.


3) Identification labeling standard-setting

Physical labeling and labeling specification is clearly defined for each type of equipment logo installation location for future installation, identification and read. The specification of grid equipment labeling should be based on factors such as outdoor equipment, indoor equipment, equipment characteristics of each unit, reading and writing distance of handheld equipment and logo, and other factors. The general principle must be based on practical application. Currently, substation RFID technology uses passive metal electronic identification, but it is impractical to install this type of identification directly on outdoor equipment such as outdoor current transformers, voltage transformers and surge arresters. After the domestic and foreign handheld read-write equipment at various voltage substations to use the test, can not read more than 2 m of identification information. Therefore, the development of RFID labeling norms to consider the existence of such factors.


4) Physical identification middleware and system integration

The application of RFID technology can improve the efficiency of power grid asset management. However, the application technology of RFID read-write device is complex and difficult to integrate with grid company's PMS system and SAP system, the coupling between systems is high, and the adaptation to business changes Poor sex. This makes the business cautious about the implementation of RFID technology, and middleware to help RFID equipment and power grid companies such as ERP systems and SAP systems integration.


At present, the grid company's RFID middleware system generally adopts the SOA-based pattern development and integrates the PAI interface provided by the manufacturer of the RFID read-write device in the middleware into the middleware system by various means such as IP address, port setting Etc., it is convenient for the RFID device to read and write the identification data, meanwhile, the collected data is effectively filtered, processed and transmitted by the identification service, and finally stored in the middleware database. Middleware can also be used to monitor the role of RFID devices to check the operation of RFID devices. In addition, the use of RFID middleware can be easily implemented with ERP systems such as data interface and data exchange.


At present, the power grid enterprises generally apply the evaluation and decision-making system of asset safety management to carry out the evaluation of the outcome indicators. The system mainly draws data from PMS system and SAP system, but lacks the information of on-the-spot physical data. Through the middleware system of RFID and on-site collecting equipment, it collects the physical identification data and real-time information through the interface to the asset safety management and evaluation decision-making system So as to realize the vertical closed loop that matches the accounts, cards and objects in real sense and provide more accurate data on asset operation status for asset safety management.


5) Physical identification data storage and data security needs

At present, the ISO18000-6B standard electronic identification adopted by the real-time asset management of the power grid has the characteristics of standard maturity, stable product, widely used, ID number globally unique and multi-sign reading at the same time, and can store data of 1 024 b or 2 048 b capacity, Data read speed is 40 kb / s. Physical identification of the number of stored information to take into account the field of operation and maintenance work in the field of handheld devices and background data exchange problems, the current major suppliers of handheld devices equipped with basic GPRS function, but in view of the communication transmission stability, can not guarantee that any Time to get middleware system background data, therefore, to consider the device information in the logo data storage content.


Also to consider is the contents of the network asset management logo storage information. According to the ISO / IEC18000-6B protocol package logo, the number of bytes stored in the memory of 206, while the power grid equipment information storage content in addition to consider PMS system and PM, AM linkage factors, the need to consider the necessity of the relevant issues. After years of implementation, the information stored in substation identification contents mainly includes nameplate model, factory serial number, nameplate manufacturer, voltage level, substation, commissioning date, equipment status, identification type, unit of measurement, SAPID, SAP number, material code, The use of such storage methods, you can more complete view of the basic equipment and content.


6) Data transmission security

Grid companies to the outside world mobile storage devices or mobile transmission methods using strict isolation to prevent data risks, resulting in handheld devices can not be timely information collected to the middleware system, the same middleware system business documents can not be easily uploaded to the handheld Terminal, but must pass through the security U disk after many conversions in order to achieve data exchange. As the operation is too complicated, it will affect the enthusiasm of asset managers to carry out the application of RFID technology. Therefore, it is necessary to fundamentally solve the problem of data transmission and security of equipment acquisition information.


7) labeling particle size

With the deepening of the asset security management of power grid companies, the grid companies have carried out the work of synchronizing the PMS system with the PM module of SAP system, mainly including the synchronization of primary equipment and secondary equipment. Synchronous work only for major equipment, ancillary equipment is not synchronized. As the synchronous work on the PMS system equipment types and some fields are very demanding maintenance, such as PMS system operators due to business unskilled or not strong sense of responsibility, can not be synchronized to the PM module, it will affect the financial AM module with the capital And linkage work. Therefore, labeling and labeling is based on PMS system data. Although the granularity is the most granular and the workload is heavy, the quality of synchronization between PMS and PM can be checked during the labeling of the label, and the quality of linkage with AM can be checked. This mode It has a positive effect on improving the consistency of accounting (PM), card (AM) and physical object (RFID physical identifier).


Summary: RFID technology has been applied in various aspects of network asset safety management. The technical realization mode is to paste the physical identification into the assets for storage of device information, batch reading without contact, and data transmission. This can realize the asset safety management of the equipment. Through the daily operation and maintenance of the physical identification data, it can realize the dynamic tracking management of the equipment, eliminate the difficulties, blind spots and obstacles of the asset management and realize the precise positioning and management of the assets and equipment. The application of asset management will have very good prospects, and thus bring high efficiency and economic benefits.














Application of RFID Technology in Power Network Asset Safety Management


project description:

1) Acquisition equipment selection

RFID technology used in power grid asset tracking management will use a large number of handheld collection terminal on-site physical identification of information collection, due to the electromagnetic field environment, you need to consider the terminal equipment, anti-interference, read and write distance, stability, reliability and other factors .


(1) anti-interference factors. Substation equipment in the operating environment, will have a power frequency electric field and power frequency magnetic field, power frequency electromagnetic field interference is low-frequency induction field interference. Because the signal inside the hand-held terminal does not use the earth as the return path, the electromagnetic protection design of the reader should be considered in the hand-held terminal design.


(2) read and write distance. Grid physical identification installation location are generally flat on the base of the device flat iron, and left a certain height of the ground to facilitate the operator to read and write data, therefore, handheld read and write distance away from the assets to reduce the walking distance of inspectors and reduce work intensity , To improve the inspection efficiency is of great significance.


(3) handheld device battery life. 220kV and above substation covers a larger area, more equipment, and logo implementation of the installation of a long time, therefore, the handheld battery must have a longer life, and automatically save the data after power down to ensure that staff work in the field without worries .


2) physical identification performance

RFID physical identification bar code does not have the waterproof, antimagnetic, high temperature, long service life, read a large distance, the data can be encrypted, the amount of stored data, the stored information can be modified, etc., has been widely used in power grid asset tracking management on. Therefore, for asset tracking management basically use ISO18000-6B metal logo. Power grid equipment perennial outdoor and high temperature environment, the logo design and material selection should take full account of UV protection, read and write distance, multi-tag reading and other factors.


(1) read and write distance. In the substation UHF electromagnetic environment, the metal surface has a shielding effect on the electromagnetic wave. When the antenna inside the mark is close to the metal surface, the performance of the antenna may be obviously deteriorated. After the field application test, the signal will drastically degrade after attaching the grounding flat iron surface, and the reading and writing distance will be reduced by 50% ~ 70%. Therefore, the problem of reading and writing distance should be taken into consideration when designing the logo, packaging and labeling materials .


(2) anti-ultraviolet. At present, UHF passive electronic identification packaging shell commonly used ABS material, the logo has been installed on the return visit, the electronic logo long-term in the substation wind and sun, easy to fade, therefore, in the identification of shell packaging to add anti-UV materials.


(3) anti-collision mechanism. In order to speed up asset inventory and inspection speed, physical identification must consider the anti-collision algorithm in design to realize the function of multi-label batch, fast and accurate reading in each working area.


3) Identification labeling standard-setting

Physical labeling and labeling specification is clearly defined for each type of equipment logo installation location for future installation, identification and read. The specification of grid equipment labeling should be based on factors such as outdoor equipment, indoor equipment, equipment characteristics of each unit, reading and writing distance of handheld equipment and logo, and other factors. The general principle must be based on practical application. Currently, substation RFID technology uses passive metal electronic identification, but it is impractical to install this type of identification directly on outdoor equipment such as outdoor current transformers, voltage transformers and surge arresters. After the domestic and foreign handheld read-write equipment at various voltage substations to use the test, can not read more than 2 m of identification information. Therefore, the development of RFID labeling norms to consider the existence of such factors.


4) Physical identification middleware and system integration

The application of RFID technology can improve the efficiency of power grid asset management. However, the application technology of RFID read-write device is complex and difficult to integrate with grid company's PMS system and SAP system, the coupling between systems is high, and the adaptation to business changes Poor sex. This makes the business cautious about the implementation of RFID technology, and middleware to help RFID equipment and power grid companies such as ERP systems and SAP systems integration.


At present, the grid company's RFID middleware system generally adopts the SOA-based pattern development and integrates the PAI interface provided by the manufacturer of the RFID read-write device in the middleware into the middleware system by various means such as IP address, port setting Etc., it is convenient for the RFID device to read and write the identification data, meanwhile, the collected data is effectively filtered, processed and transmitted by the identification service, and finally stored in the middleware database. Middleware can also be used to monitor the role of RFID devices to check the operation of RFID devices. In addition, the use of RFID middleware can be easily implemented with ERP systems such as data interface and data exchange.


At present, the power grid enterprises generally apply the evaluation and decision-making system of asset safety management to carry out the evaluation of the outcome indicators. The system mainly draws data from PMS system and SAP system, but lacks the information of on-the-spot physical data. Through the middleware system of RFID and on-site collecting equipment, it collects the physical identification data and real-time information through the interface to the asset safety management and evaluation decision-making system So as to realize the vertical closed loop that matches the accounts, cards and objects in real sense and provide more accurate data on asset operation status for asset safety management.


5) Physical identification data storage and data security needs

At present, the ISO18000-6B standard electronic identification adopted by the real-time asset management of the power grid has the characteristics of standard maturity, stable product, widely used, ID number globally unique and multi-sign reading at the same time, and can store data of 1 024 b or 2 048 b capacity, Data read speed is 40 kb / s. Physical identification of the number of stored information to take into account the field of operation and maintenance work in the field of handheld devices and background data exchange problems, the current major suppliers of handheld devices equipped with basic GPRS function, but in view of the communication transmission stability, can not guarantee that any Time to get middleware system background data, therefore, to consider the device information in the logo data storage content.


Also to consider is the contents of the network asset management logo storage information. According to the ISO / IEC18000-6B protocol package logo, the number of bytes stored in the memory of 206, while the power grid equipment information storage content in addition to consider PMS system and PM, AM linkage factors, the need to consider the necessity of the relevant issues. After years of implementation, the information stored in substation identification contents mainly includes nameplate model, factory serial number, nameplate manufacturer, voltage level, substation, commissioning date, equipment status, identification type, unit of measurement, SAPID, SAP number, material code, The use of such storage methods, you can more complete view of the basic equipment and content.


6) Data transmission security

Grid companies to the outside world mobile storage devices or mobile transmission methods using strict isolation to prevent data risks, resulting in handheld devices can not be timely information collected to the middleware system, the same middleware system business documents can not be easily uploaded to the handheld Terminal, but must pass through the security U disk after many conversions in order to achieve data exchange. As the operation is too complicated, it will affect the enthusiasm of asset managers to carry out the application of RFID technology. Therefore, it is necessary to fundamentally solve the problem of data transmission and security of equipment acquisition information.


7) labeling particle size

With the deepening of the asset security management of power grid companies, the grid companies have carried out the work of synchronizing the PMS system with the PM module of SAP system, mainly including the synchronization of primary equipment and secondary equipment. Synchronous work only for major equipment, ancillary equipment is not synchronized. As the synchronous work on the PMS system equipment types and some fields are very demanding maintenance, such as PMS system operators due to business unskilled or not strong sense of responsibility, can not be synchronized to the PM module, it will affect the financial AM module with the capital And linkage work. Therefore, labeling and labeling is based on PMS system data. Although the granularity is the most granular and the workload is heavy, the quality of synchronization between PMS and PM can be checked during the labeling of the label, and the quality of linkage with AM can be checked. This mode It has a positive effect on improving the consistency of accounting (PM), card (AM) and physical object (RFID physical identifier).


Summary: RFID technology has been applied in various aspects of network asset safety management. The technical realization mode is to paste the physical identification into the assets for storage of device information, batch reading without contact, and data transmission. This can realize the asset safety management of the equipment. Through the daily operation and maintenance of the physical identification data, it can realize the dynamic tracking management of the equipment, eliminate the difficulties, blind spots and obstacles of the asset management and realize the precise positioning and management of the assets and equipment. The application of asset management will have very good prospects, and thus bring high efficiency and economic benefits.






























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