CN113297865A - Switch cabinet data management method and system based on RFID temperature tag - Google Patents
Switch cabinet data management method and system based on RFID temperature tag Download PDFInfo
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- CN113297865A CN113297865A CN202110555420.6A CN202110555420A CN113297865A CN 113297865 A CN113297865 A CN 113297865A CN 202110555420 A CN202110555420 A CN 202110555420A CN 113297865 A CN113297865 A CN 113297865A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The invention discloses a switch cabinet data management method based on RFID temperature tags, which comprises the steps of firstly, building an active RFID hardware system integrating power supply, data acquisition, data storage and data transmission; partitioning the storage unit of the built RFID hardware system, and respectively storing the model, the temperature, the operating condition and the fault record of the switch cabinet; and finally, the measured temperature data is processed on site, if the measured temperature data is abnormal, the measured temperature data is uploaded immediately, if the measured temperature data is not abnormal, the stored information is uploaded at regular time, the RFID temperature tag data management system records the inherent information of the switch cabinet, the tag can uniquely identify one switch cabinet, and in addition, the data management system also has the functions of recording the historical temperature data, the operation information and the fault information of the switch cabinet and automatically uploading the historical temperature data, the operation information and the fault information of the switch cabinet, so that the data management system can realize the recording and uploading of the whole life cycle data of the switch cabinet and realize the whole life cycle management of the switch cabinet.
Description
Technical Field
The invention relates to the technical field of wireless temperature measurement of a switch cabinet of an electric power system, in particular to a switch cabinet data management method and system based on an RFID temperature tag.
Background
The existing RFID temperature tag only measures temperature when an operation and maintenance person reads the RFID temperature tag, only stores single temperature data, and automatically covers last temperature data when the RFID temperature tag measures new temperature data, so that the temperature data of equipment with abnormal temperature can be lost, and the operation and maintenance person cannot know the condition of short-time abnormal operation of the equipment.
The current RFID temperature tag does not record the model, the manufacturer, the commissioning time, the operation condition and the fault condition of the switch cabinet, and operation and maintenance personnel need to manually distinguish the temperature data of different tags after reading the temperature data, so the current temperature tag is a fake tag actually and cannot uniquely identify the switch cabinet.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention is provided in view of the problems of the existing switch cabinet data management system based on the RFID temperature tag.
Therefore, the invention aims to provide a switch cabinet data management method and system based on an RFID temperature tag.
In order to solve the technical problems, the invention provides the following technical scheme: a switch cabinet data management method based on RFID temperature tags comprises the following steps,
firstly, an active RFID hardware system integrating power supply, data acquisition, data storage and data transmission is built;
partitioning the storage unit of the built RFID hardware system, and respectively storing the model, the temperature, the operating condition and the fault record of the switch cabinet;
and finally, the measured temperature data is processed on site, and if the measured temperature data is abnormal, the measured temperature data is immediately uploaded, and if the measured temperature data is not abnormal, the stored information is uploaded regularly.
As a preferable scheme of the switch cabinet data management method based on the RFID temperature tag of the present invention, wherein: the method also comprises the following steps of,
the power supply module adopts a self-cleaning nano-film solar cell panel and a rechargeable battery pack of 5cm2 and supplies power to the temperature sensor;
the temperature sensor adopts a DS18B20 controller, the DS18B20 controller is initially configured to 12 bits, 16 bits are read in total when the temperature is read, the first 5 bits are sign bits, and when the current 5 bits are 1, the read temperature is a negative number; when the current 5 bits are 0, the read temperature is positive, and the reading method when the temperature is positive is as follows: converting the 16-system number into the 10-system number; the reading method when the temperature is negative comprises the following steps: and negating the 16 system, adding 1, and converting into the 10 system.
As a preferable scheme of the switch cabinet data management method based on the RFID temperature tag of the present invention, wherein: the method also comprises the following steps of,
managing high-efficiency charging and discharging of the battery pack by utilizing a charging management chip ADP5091 in the solar cell panel;
then, a voltage regulator of the photovoltaic system is used for carrying out real-time online compensation measurement and self calibration on the temperature by adopting a MAX17205 chip;
monitoring the temperature of the switch cabinet every 1min by using an MSP430F149IPM singlechip of the photovoltaic system, and driving the NB-IOT module to report tag data through a UART interface;
and finally, reading the written functional instruction data through an IIC interface by matching with an SL3S4011 chip of the RFID module, decrypting the data by adopting a decryption algorithm, and awakening the corresponding sensor module according to a command analysis program built in the online sensing tag to finish the active control of each module.
As a preferable scheme of the switch cabinet data management method based on the RFID temperature tag of the present invention, wherein: the method also comprises the following steps of,
partitioning the RFID label storage area, and respectively storing intrinsic information, temperature data, operation conditions and fault records of the switch cabinet;
and the staff uses the RFID reader to input the model of the switch cabinet, the production merchant and the commissioning date into the inherent information area of the equipment of the memory, and detects the running condition of the switch cabinet.
As a preferable scheme of the switch cabinet data management method based on the RFID temperature tag of the present invention, wherein: the method also comprises the following steps of,
if the switch cabinet runs normally, namely the acquisition parameters are not abnormal, the RFID tag MCU and the temperature acquisition module run in a low-power-consumption sleep mode, other modules are in a power-down state, the RFID tag is automatically awakened every 1min, and after the RFID tag is awakened, fault detection of each sensor module is firstly carried out to complete self-detection; if the self-checking fails, reporting fault data immediately and informing operation and maintenance personnel to complete replacement; if the self-inspection is normal, the RFID label collects the temperature of the switch cabinet and records the temperature in an RFID label temperature data area;
if the acquisition parameters are abnormal, writing abnormal data with a timestamp into a temperature data area of the RFID module, adjusting acquisition time and deciding whether to report and report interval time according to the overrun degree, and recording the fault condition of the switch cabinet into an equipment fault information area by an operator after the switch cabinet is abnormal.
As a preferable scheme of the switch cabinet data management method based on the RFID temperature tag of the present invention, wherein: the method also comprises the following steps of,
if the temperature data of the equipment is not abnormal, uploading the RFID label data every hour, and clearing the data of the temperature data storage area in the label for new data storage;
if the temperature of the switch cabinet is abnormal, writing abnormal data into a temperature data storage area and immediately uploading the data in the temperature data storage area, simultaneously reducing the time interval of temperature acquisition to 10s, uploading the data once every time the data is acquired, and recovering the time interval of temperature data acquisition to 1 minute until the data of the switch cabinet is recovered to be normal.
The utility model provides a cubical switchboard data management system based on RFID temperature label which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the hardware system comprises a power supply module, a data acquisition module connected with the power supply module and an active RFID hardware module connected with the data acquisition module; and the number of the first and second groups,
and the central control assembly comprises a charging management chip, a circuit monitoring chip electrically connected with the charging management chip and a main control chip connected with the circuit monitoring chip.
As a preferred solution of the RFID temperature tag-based switch cabinet data management system of the present invention, wherein: the power supply module comprises a solar cell panel, a rechargeable battery pack electrically connected with the solar cell panel and a charging management chip, wherein a maximum power tracker is arranged on the charging management chip.
As a preferred solution of the RFID temperature tag-based switch cabinet data management system of the present invention, wherein: the data acquisition module comprises a temperature sensor, a memory electrically connected with the temperature sensor and a power supply line connected with the power supply module,
the memory comprises a high-speed temporary storage and an electric erasing RAM, wherein the electric erasing RAM comprises temperature triggers TH and TL and a configuration register.
The invention has the beneficial effects that: the RFID temperature tag data management system records the inherent information of the switch cabinet, the tag can uniquely identify one switch cabinet, and the data management system also has the functions of recording historical temperature data, operation information and fault information of the switch cabinet and automatically uploading, so that the data management system can record and upload the data of the whole life cycle of the switch cabinet and realize the management of the whole life cycle.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a flow chart of data acquisition, storage, processing and reporting of a data management system of a switch cabinet data management system based on an RFID temperature tag according to the present invention.
Fig. 2 is a schematic diagram of a power management chip of the switch cabinet data management system based on the RFID temperature tag.
Fig. 3 is a read-write timing diagram of the RFID module chip of the switch cabinet data management system based on the RFID temperature tag of the present invention.
Fig. 4 is a schematic diagram of a data management system module of the switch cabinet data management system based on the RFID temperature tag according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Example 1
Referring to fig. 1-4, a method for managing data of a switch cabinet based on an RFID temperature tag includes:
s1: an active RFID hardware system integrating power supply, data acquisition, data storage and data transmission is built, and the active RFID hardware system integrating power supply, data acquisition, data storage and data transmission is realized by utilizing devices such as a 5cm2 solar panel, a 5V rechargeable lead-acid storage battery, a charging management chip, a temperature sensor, an existing passive RFID module, a storage chip, an ultra-low power consumption single chip microcomputer and the like.
Specifically, the power supply unit is 5cm2According to the self-cleaning nano-film solar cell panel and the rechargeable battery pack, the charging management chip ADP5091 is adopted to realize high-efficiency charging and discharging management of the battery pack, the ADP5091 is provided with an MPPT maximum power tracker, voltage and current monitoring of a photovoltaic system can be realized to obtain the maximum power of the photovoltaic system, and the starting voltage of a regulator is only 380 mV.
After the chip is cold started, the regulator can normally work in an input voltage range of 80mV-3.3V, boosting and turning-off can be realized under the condition of low light through programming, in order to accurately measure the electric quantity of the battery pack, a MAX17205 chip is adopted, the chip adopts a ModelGauge m5 algorithm, the temperature real-time online compensation and self-calibration functions are realized, the residual working time and the charging completion time can be estimated, the measurement is completed on a plurality of series-connected batteries, the active equalization function of the electric quantity of the batteries is realized, and the service life of the battery pack is prolonged.
Furthermore, the main control chip adopts an ultra-low power consumption singlechip MSP430F149IPM of TI company, the MSP430F149IPM adopts an ARM Cortex-M4 inner core, and the ultra-low power consumption (the current is only 280uA in an active mode) is provided with an independent floating point arithmetic unit and has strong data processing capacity. The intelligent power equipment is provided with 1MFlash and 64kB RAMs, the main frequency can reach 64MHz, the MSP430F149IPM has rich peripheral resources and is provided with 2 paths of IIC (inter-integrated circuit) buses and 2 paths of UART (Universal Asynchronous Receiver/Transmitter) interfaces, the MSP430F149IPM is connected with a temperature sensor DS18B20 through the IIC interfaces to collect temperature data, and when the power equipment normally operates, the MSP430F149IPM reads the temperature of a switch cabinet every 1min and drives an NB-IOT module to report label data through the UART interfaces.
Further, the temperature sensor employs DS18B 20. The memory of DS18B20 includes a scratch pad RAM and an electrically erasable RAM, which in turn includes temperature flip-flops TH and TL, and a configuration register, the memory being capable of completely determining communication to a line port, the digit beginning to be written into the register with a command to write the register, the digits may then be confirmed with a command to read the register, transferred to the electrically erasable RAM with a command to copy the register after confirmation, this procedure ensures the integrity of the numbers when the number in the register is modified, the scratch pad RAM is composed of 8 bytes of memory, the ninth byte can be read out with a command to read the register, this byte is checked against the first eight bytes, the first 8 bits of the 64-bit lithographic ROM are the own code of DS18B20, the next 48 bits are the consecutive digital code, and the last 8 bits are the CRC check against the first 56 bits. The 64-bit lithographic ROM in turn comprises 5 ROM function commands: read ROM, match ROM, jump ROM, look up ROM and alarm look up.
DS18B20 may use external power VDD or may use internal parasitic power. When the VDD port is connected with the voltage of 3.0V-5.5V, an external power supply is used; an internal parasitic power supply is used when the VDD port is grounded. The I/O port line is connected with a pull-up resistor of about 5K omega no matter the internal parasitic power supply or the external power supply. The DS18B20 is configured to be 12 bits when leaving a factory, when the temperature is read, 16 bits are totally read, the first 5 bits are sign bits, and when the current 5 bits are 1, the read temperature is a negative number; when the current 5 bits are 0, the read temperature is positive, and the reading method when the temperature is positive is as follows: converting the 16-system number into the 10-system number; the reading method when the temperature is negative comprises the following steps: and negating the 16 system, adding 1, and converting into the 10 system.
Furthermore, the RFID module adopts an NXP SL3S4011 chip to support an UHF EPCglobal Generation-2 radio frequency standard protocol and an independent IC communication interface, and the MCU can complete functions of accessing the RFID chip, reading and writing configuration command data, operating data and the like through the IC interface to realize bridging of a radio frequency system and a control system, so that the function of awakening the on-line sensing tag on site through a handheld terminal is realized, when the RFID tag leaves a factory, a communication interruption flag bit (the communication interruption flag bit is located in a special configuration register) of the RFID chip is initialized to be 1 through an RFID reader, and SCL pin interruption of the IIC interface is started. When the operation and maintenance personnel write corresponding functional instruction data into the data buffer register of the RFID chip through the handheld terminal, the level of the SCL pin jumps to a low level, an RF communication interruption indication signal can be generated, the signal level duration is not less than 210us, and the timing chart of the reading and writing interruption of the SCL pin is shown in FIG. 2. The MSP430F149IPM is awakened after receiving the interrupt signal, reads the written functional instruction data through the IIC interface, decrypts the data by adopting a decryption algorithm, and awakens the corresponding sensor module according to a command analysis program built in the online sensing tag to finish active control of each module.
S2: and then, classified data storage is realized by using the built hardware system, and the RFID label storage area is partitioned and is respectively used for storing intrinsic information, temperature data, operation conditions and fault records of the switch cabinet.
When the system is put into use, a worker inputs the model of the switch cabinet, a production merchant and a commissioning date into the inherent information area of the equipment of the memory by using the RFID reader;
detecting the normal operation condition of the switch cabinet, namely when no abnormality exists, operating the RFID tag MCU and the temperature acquisition module in a low-power-consumption sleep mode, enabling other modules to be in a power-down state, automatically awakening the RFID tag every 1min, and firstly detecting the fault of each sensor module after awakening the RFID tag to finish self-detection; when the self-checking fails, reporting fault data immediately, and informing operation and maintenance personnel to complete replacement; when the self-checking is normal, the RFID label collects the temperature of the switch cabinet and records the temperature data area of the RFID label.
And if the acquisition parameters are abnormal, writing the abnormal data with the timestamp into a temperature data area of the RFID module, and adjusting the acquisition time and deciding whether to report and report the interval time according to the overrun degree.
When the switch cabinet is opened or closed, an operator inputs the operation condition of the switch cabinet into the equipment operation information area;
and after the switch cabinet is abnormal, recording the fault condition of the switch cabinet into the equipment fault information area by an operator.
S3: the method for realizing the local processing and uploading of the data by utilizing the control unit of the data management system comprises the following steps:
if the temperature data of the equipment is not abnormal, the RFID label data is uploaded once every hour, and the data of the temperature data storage area in the label is cleared for new data storage.
If the temperature of the switch cabinet exceeds the limit value, writing abnormal data into a temperature data storage area and immediately uploading the data in the temperature data storage area, simultaneously reducing the time interval of temperature acquisition to 10s, uploading the data once every time the data is acquired, and recovering the time interval of temperature data acquisition to 1 minute until the data of the switch cabinet is recovered to normal.
Example 2
Referring to fig. 4, a cubical switchboard data management system based on RFID temperature label, its characterized in that: the system comprises a hardware system 100, a power supply module 101, a data acquisition module 102 connected with the power supply module 101 and a storage module 103 connected with the data acquisition module 102, wherein the storage module 103 comprises an active RFID hardware module 103b and an operation information module 103 a; and the central control component comprises a charging management chip 101c, a circuit monitoring chip electrically connected with the charging management chip 101c and a main control chip connected with the circuit monitoring chip, the power supply module 101 comprises a solar panel 101a, a rechargeable battery pack 101b electrically connected with the solar panel 101a and the charging management chip 101c, a maximum power tracker is arranged on the charging management chip 101c, the data acquisition module 102 comprises a temperature sensor 102a, a memory 102b electrically connected with the temperature sensor 102a and a power supply line connected with the power supply module 101, wherein the memory 102b comprises a high-speed temporary storage and an electric erasing RAM, and the electric erasing RAM comprises temperature triggers TH and TL and a configuration register.
Specifically, the main body of the present invention includes a hardware system 100, in this embodiment, the hardware system 100 includes a power supply module 101, the power supply module 101 supplies power to the entire management system, and is directly electrically connected to a data acquisition module 102 on the power supply module 101, the data acquisition module 102 can acquire various data of the switch cabinet, and is directly connected to an active RFID hardware module 103b on the data acquisition module 102.
Further, the intelligent temperature measuring system comprises a central control assembly, in the embodiment, the central control assembly comprises a charging management chip 101c, the charging management chip 101c can control charging and discharging of a power supply module, the model of the charging management chip 101c is ADP5091, an electric quantity monitoring chip is MAX17205, meanwhile, in order to realize total control, each part is directly connected to a main control chip through a circuit, the model of the main control chip is MSP430F149IPM, the model of the RFID communication chip is SL3S4011, the switch cabinet data management system constructed by the combination of the chips and other accessories is an active system, compared with an active RDIF switch cabinet system existing in the market, the built system has stronger functions, can collect, record and upload temperature data, and can record and upload intrinsic information, operation information and fault information of the switch cabinet, and the alarm is actively given when the temperature of the switch cabinet is abnormal, so that the unique identification of the switch cabinet and the whole life cycle management of the switch cabinet are realized.
Further, the power supply module 101 includes a solar panel 101a, a rechargeable battery pack 101b electrically connected to the solar panel 101a, and a charging management chip 101c, a maximum power tracker is disposed on the charging management chip 101c, and the data acquisition module 102 includes a temperature sensor 102a, a memory 102b electrically connected to the temperature sensor 102a, and a power supply line connected to the power supply module 101, where the memory 102b includes a high-speed temporary memory and an electrically erasable RAM, and the electrically erasable RAM includes temperature triggers TH and TL and a configuration register.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. A switch cabinet data management method based on RFID temperature tags is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
firstly, an active RFID hardware system integrating power supply, data acquisition, data storage and data transmission is built;
partitioning the storage unit of the built RFID hardware system, and respectively storing the model, the temperature, the operating condition and the fault record of the switch cabinet;
and finally, the measured temperature data is processed on site, and if the measured temperature data is abnormal, the measured temperature data is immediately uploaded, and if the measured temperature data is not abnormal, the stored information is uploaded regularly.
2. The RFID temperature tag-based switchgear data management method of claim 1, wherein: the method also comprises the following steps of,
the power supply module adopts a self-cleaning nano-film solar cell panel and a rechargeable battery pack of 5cm2 and supplies power to the temperature sensor;
the temperature sensor adopts a DS18B20 controller, the DS18B20 controller is initially configured to 12 bits, 16 bits are read in total when the temperature is read, the first 5 bits are sign bits, and when the current 5 bits are 1, the read temperature is a negative number; when the current 5 bits are 0, the read temperature is positive, and the reading method when the temperature is positive is as follows: converting the 16-system number into the 10-system number; the reading method when the temperature is negative comprises the following steps: and negating the 16 system, adding 1, and converting into the 10 system.
3. The RFID temperature tag-based switchgear data management method of claim 1 or 2, wherein: the method also comprises the following steps of,
managing high-efficiency charging and discharging of the battery pack by utilizing a charging management chip ADP5091 in the solar cell panel;
then, a voltage regulator of the photovoltaic system is used for carrying out real-time online compensation measurement and self calibration on the temperature by adopting a MAX17205 chip;
monitoring the temperature of the switch cabinet every 1min by using an MSP430F149IPM singlechip of the photovoltaic system, and driving the NB-IOT module to report tag data through a UART interface;
and finally, reading the written functional instruction data through an IIC interface by matching with an SL3S4011 chip of the RFID module, decrypting the data by adopting a decryption algorithm, and awakening the corresponding sensor module according to a command analysis program built in the online sensing tag to finish the active control of each module.
4. The RFID temperature tag-based switchgear data management method of claim 1, wherein: the method also comprises the following steps of,
partitioning the RFID label storage area, and respectively storing intrinsic information, temperature data, operation conditions and fault records of the switch cabinet;
and the staff uses the RFID reader to input the model of the switch cabinet, the production merchant and the commissioning date into the inherent information area of the equipment of the memory, and detects the running condition of the switch cabinet.
5. The RFID temperature tag-based switchgear data management method of claim 4, wherein: the method also comprises the following steps of,
if the switch cabinet runs normally, namely the acquisition parameters are not abnormal, the RFID tag MCU and the temperature acquisition module run in a low-power-consumption sleep mode, other modules are in a power-down state, the RFID tag is automatically awakened every 1min, and after the RFID tag is awakened, fault detection of each sensor module is firstly carried out to complete self-detection; if the self-checking fails, reporting fault data immediately and informing operation and maintenance personnel to complete replacement; if the self-inspection is normal, the RFID label collects the temperature of the switch cabinet and records the temperature in an RFID label temperature data area;
if the acquisition parameters are abnormal, writing abnormal data with a timestamp into a temperature data area of the RFID module, adjusting acquisition time and deciding whether to report and report interval time according to the overrun degree, and recording the fault condition of the switch cabinet into an equipment fault information area by an operator after the switch cabinet is abnormal.
6. The RFID temperature tag-based switchgear data management method of claim 1, wherein: the method also comprises the following steps of,
if the temperature data of the equipment is not abnormal, uploading the RFID label data every hour, and clearing the data of the temperature data storage area in the label for new data storage;
if the temperature of the switch cabinet is abnormal, writing abnormal data into a temperature data storage area and immediately uploading the data in the temperature data storage area, simultaneously reducing the time interval of temperature acquisition to 10s, uploading the data once every time the data is acquired, and recovering the time interval of temperature data acquisition to 1 minute until the data of the switch cabinet is recovered to be normal.
7. The utility model provides a cubical switchboard data management system based on RFID temperature label which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the hardware system (100) comprises a power supply module (101), a data acquisition module (102) connected with the power supply module (101) and a storage module (103) connected with the data acquisition module (102), wherein the storage module (103) comprises an active RFID hardware module (103b) and an operation information module (103 a); and the number of the first and second groups,
the central control assembly comprises a charging management chip (101c), a circuit monitoring chip electrically connected with the charging management chip (101c) and a main control chip connected with the circuit monitoring chip.
8. The RFID temperature tag-based switchgear data management system of claim 7, wherein: the power supply module (101) comprises a solar panel (101a), a rechargeable battery pack (101b) electrically connected with the solar panel (101a) and a charging management chip (101c), wherein a maximum power tracker is arranged on the charging management chip (101 c).
9. The RFID temperature tag-based switchgear data management system of claim 8, wherein: the data acquisition module (102) comprises a temperature sensor (102a), a memory (102b) electrically connected with the temperature sensor (102a) and a singlechip (102c) connected with the power supply module (101),
wherein the memory (102b) comprises a scratch pad and an electrically erasable RAM comprising temperature triggers TH, TL and a configuration register.
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