An oil equipment part state identification system and method based on RFID tags

Abstract

The application relates to the technical field of equipment state monitoring, and discloses an oil equipment part state identification system and method based on RFID tags, which comprises an RFID sensing module, a centralized reading module, a data request module and an edge processing module.The RFID sensing module comprises a plurality of sensor units for acquiring working state data of the oil equipment parts and corresponding RFID tag units.The centralized reading module is used for sending a specific reading signal and receiving the working state data sent by all the RFID tag units in a specified area in response to the specific reading signal.The data request module is used for driving the centralized reading module to send the specific reading signal after verification through a specified key, and downloading the required working state data from the centralized reading module.The edge processing module is used for processing and judging the working state data received from the data request module, and acquiring the working state of the corresponding oil equipment parts.The early warning terminal is used for receiving the working state judgment result of the oil equipment parts.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of equipment state monitoring, and in particular to an oil equipment part state identification system and method based on an RFID tag. BACKGROUND

[0002] Ocean oil platforms (including drilling platforms, FPSOs and underwater production systems) are long-term in an extremely harsh industrial environment: high concentration of salt spray corrosion, continuous high humidity environment, severe temperature change (-20℃ to 60℃), high pressure working condition (especially underwater system bearing more than 30MPa pressure), flammable and explosive gas environment, oil pollution and densely distributed metal structure together constitute a severe challenge. In this environment, the traditional wired sensor system is in a dilemma - the laying of special anticorrosion cable needs to pass through the bulkhead and implement high-cost sealing (single point cost more than 5000 dollars), and the cable itself is damaged at a rate of up to 35% / year in the corrosion environment, and the fire operation involved in replacement and maintenance is more in violation of API 14F explosion safety specification, forming a significant operation and maintenance risk.

[0003] Therefore, the RFID technology with full wireless characteristics shows unique advantages: passive or semi-passive tags obtain working power through radio frequency energy, completely eliminating the need for local power supply, especially suitable for platform power-free areas or key positions where batteries are difficult to replace. These characteristics perfectly meet the core needs of the oil platform assets, which are densely packed and safety sensitive - thousands of valves, pump bodies, pipeline flanges, fasteners and other key equipment not only need accurate identity authentication (including part model, serial number and maintenance history), but also need to monitor the running state of temperature, vibration, pressure and other running states in real time. RFID tags, with their globally unique UID codes, naturally become the "digital identity card" of physical assets; when integrated with micro sensors, they achieve the essential integration of identity information and real-time state data.

[0004] However, oil-related equipment is often distributed in narrow corners, high-altitude masts and even deep-sea environments (such as underwater Christmas trees and manifold systems). Traditional maintenance relies on engineers to conduct on-site inspections, but the accessibility of harsh weather and dangerous areas limits the detection rate, and the experience-dependent nature of the inspection can lead to misjudgment. In addition, manual inspection of deep-sea environments requires the use of divers, which is dangerous and costly. In addition, the physical isolation of existing platform equipment areas is weak (only the core area such as the control room implements permission control), and as a key infrastructure, it faces the potential threat of organized attacks - attackers may forge device tags to tamper with state data or steal sensitive information through fake maintenance terminals, so the traditional oil equipment part state identification system cannot meet the current security needs. SUMMARY

[0005] In order to improve the safety and reliability of the state identification of oil equipment parts, the application provides an oil equipment part state identification system and method based on RFID tags.

[0006] In the first aspect, the application provides an oil equipment part state identification system based on RFID tags, which adopts the following technical scheme:

[0007] An oil equipment part state identification system based on RFID tags comprises:

[0008] An RFID sensing module comprises a plurality of sensor units for acquiring working state data of the oil equipment parts and corresponding RFID tag units;

[0009] A centralized reading module is used to send a specific reading signal and receive the working state data sent by all RFID tag units in a specified area in response to the specific reading signal;

[0010] A data request module is used to drive the centralized reading module to send the specific reading signal after verification by a specified key, and download the required working state data from the centralized reading module;

[0011] An edge processing module is used to process and judge the working state data received from the data request module to obtain the working state of the corresponding oil equipment parts;

[0012] An early warning terminal is used to receive the working state judgment result of the oil equipment parts, send corresponding notification information, and obtain the on-site situation of the location of the centralized reading module.

[0013] By adopting the above technical scheme, the fusion of identity recognition and state monitoring of oil equipment parts is realized. The distributed RFID sensing module can be embedded or attached to the surface of parts that are difficult to access, and cooperate with the centralized reading module to perform remote batch collection, with a coverage range of several meters to several tens of meters, or non-contact data reading at specific inspection points (such as equipment cabin entrances). For underwater scenes, pressure-tight watertight RFID tags combined with ROV or readers on fixed supports can effectively realize state monitoring. The edge processing module reduces the need for manual intervention through real-time analysis of data, improving the response speed and accuracy of the system.

[0014] Optionally, the process of the specified key verification comprises:

[0015] The type of the carrier carrying the data request module carrier is determined, if the carrier type is a non-mechanical body, the specified key is verified based on the biological characteristics of the carrier, and if the carrier type is a mechanical body, the specified key is verified based on the action characteristics of the carrier.

[0016] After the verification, the data request module needs to generate a driving signal within a specified time, and the centralized reading module sends the corresponding specific reading signal according to the driving signal, otherwise the generation of the driving signal is stopped and the specified key verification needs to be performed again.

[0017] Optionally, the generation process of the driving signal comprises:

[0018] The reading sequence of all the sensor units to be read in this round and the serial code of the corresponding RFID tag unit and the historical reading frequency are inputted;

[0019] According to the reading sequence, a corresponding driving signal is constructed and sent for each sensor unit;

[0020] The driving signal comprises a time area representing the sending time, a serial area corresponding to the serial code, a verification key area related to the historical reading frequency, and a demand representation area of the sensor data demand data time period.

[0021] Optionally, the centralized reading module comprises a verification processing unit and a data transceiver unit;

[0022] The verification processing unit verifies whether the verification key area in the driving signal is consistent according to the built-in key library, if consistent, the data transceiver unit sends the corresponding specific reading signal according to the driving signal and receives the working state data sent by all RFID tag units in the specified area in response to the specific reading signal, otherwise the data transceiver unit sends fraudulent data to the data request module and simultaneously sends warning information to the early warning terminal.

[0023] Optionally, the historical reading frequency is recorded in the centralized reading module;

[0024] The centralized reading module adds 1 to the historical reading frequency each time it receives a round of working state data sent by all RFID tag units in the specified area in response to the specific reading signal.

[0025] Optionally, the configuration process of the verification key in the verification key area comprises:

[0026] According to the device unique code of the centralized reading module and the historical reading frequency, a corresponding unique code password and historical reading password is obtained by simplified transformation according to a preset password book;

[0027] The unique code password and the historical reading password are combined to obtain a corresponding verification key.

[0028] Optionally, the specific reading signal comprises a wake-up signal sequence and a task signal sequence.

[0029] The wake-up signal sequence is generated based on the sequence region and the verification key;

[0030] The task signal sequence is generated based on the demand representation region;

[0031] The RFID tag unit sends out the sensing data of the demand data time period in response to the wake-up signal sequence.

[0032] Optionally, further comprising a carrier identity verification module for verifying the carrier according to the action feature:

[0033] When the carrier enters a detection region near the centralized reading module, an action trajectory of the carrier is acquired within a specified time period, the action feature is extracted based on the action trajectory, consistency verification is performed, and if the consistency verification is passed, the carrier is identified as verified, otherwise, the carrier is driven away or destroyed.

[0034] In a second aspect, the application provides a petroleum equipment part state identification method based on an RFID tag, applied to any one of the petroleum equipment part state identification systems based on an RFID tag.

[0035] In summary, the application has at least one of the following beneficial technical effects:

[0036] The system, through the collaborative architecture of the RFID sensing module and the centralized reading module, realizes the essential fusion collection of the petroleum equipment part identity and state data while eliminating the physical connection of the equipment, completely avoiding the safety risks and cost burdens of wired sensor layout in a high-corrosion environment; further, through the key verification mechanism of the data request module, a data access security barrier is built in an open equipment area to ensure that the state information can only be triggered and acquired by authorized terminals; combined with the localized analysis capability of the edge processing module, the original sensing data is converted into an operable equipment state judgment in real time, and finally through the multi-dimensional response channel (notification information + live acquisition) of the early warning terminal, the operation and maintenance personnel can synchronously master the equipment abnormal state and the on-site environmental situation without entering the dangerous area, forming a closed-loop management and control from data perception to decision execution, significantly improving the safety, timeliness and operation convenience of key equipment state identification in extreme environments. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a module connection diagram of the petroleum equipment part state identification system in the application. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described below in detail, examples of which are shown in the accompanying drawings.

[0039] In the description of the present specification, the description of the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the described embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Also, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The embodiments of the present application disclose an oil equipment part state identification system based on RFID tags, which comprises an RFID sensing module, a centralized reading module, a data request module, an edge processing module and a warning terminal. These modules are connected with each other through wireless communication and data transmission, forming a complete state identification system.

[0041] The RFID sensing module is the front-end data acquisition part of the system, which contains multiple sensor units and corresponding RFID tag units inside. The sensor units are used to collect the working state data of the oil equipment parts, such as temperature, vibration, pressure, strain and corrosion parameters.

[0042] Each sensor unit is used in combination with an RFID tag unit, and the RFID tag unit adopts a semi-active or active tag form, which can adapt to the high-frequency data acquisition demand and support installation in remote locations. The sensor unit and the RFID tag unit are connected through a standardized SPI / I2C digital interface or an analog signal conditioning circuit, which ensures compatibility with multiple types of sensors. For analog sensors (such as strain gauges), the analog signal needs to be digitized by an ADC converter and then written into the storage area of the RFID tag; for digital sensors (such as I2C temperature sensors), the data is directly obtained through protocol analysis.

[0043] The power supply mode of the RFID tag unit is different according to its type, the semi-active tag relies on external power activation (a specific reading signal can provide activation energy, underwater tags can also use piezoelectric energy collectors to convert water flow vibration into electric energy, or take power from adjacent equipment through magnetic induction coupling), while the active tag has a built-in battery to support continuous operation.

[0044] The centralized reading module is located in a specified area, responsible for sending a specific reading signal and receiving the working state data sent by all RFID tag units in response to the signal; the specified area is defined as a range with the centralized reading module as the center and a radius of 5-7 meters, and the centralized reading module realizes efficient communication with all RFID tag units in the area through an antenna array; the antenna array is composed of multiple directional antennas distributed around the centralized reading module, ensuring that all RFID tag units within the signal coverage range can be effectively read.

[0045] The centralized reading module contains a verification processing unit and a data transceiver unit, where the verification processing unit is responsible for verifying whether the verification key area in the driving signal is consistent, and the data transceiver unit is responsible for sending a specific reading signal and receiving the working state data returned by the RFID tag unit. The data request module is connected with the centralized reading module through wireless communication, used to drive the centralized reading module to send a specific reading signal after completing the specified key verification, and download the required working state data from the centralized reading module.

[0046] The specified key verification process of the data request module is divided into two cases:

[0047] When the carrier type is a non-mechanical body, such as an inspection personnel, the specified key is verified based on the biological characteristics of the carrier;

[0048] When the carrier type is a mechanical body, such as a drone or a robot dog, or an underwater robot, the specified key is verified based on the motion characteristics of the carrier.

[0049] After verification, the data request module needs to generate a driving signal and send it to the centralized reading module within 10 seconds. If the driving signal is not generated within the specified time, the generation of the driving signal is stopped and the specified key verification is re-performed. The generation process of the driving signal includes inputting the reading order of all sensor units to be read this time, the sequence code of the corresponding RFID tag unit, and the historical reading times (only the inspection personnel know, which need to be manually input during the inspection), and constructing and sending the corresponding driving signal for each sensor unit according to the reading order. The structure of the driving signal can be represented as time area / sequence area / verification key area / demand representation area, each area representing the sending time, the unique identification of the RFID tag unit, the verification key, and the sensor data demand time period.

[0050] After the centralized reading module receives the driving signal, the verification processing unit first verifies whether the verification key region in the driving signal is consistent according to the built-in key library. If consistent, the data transceiver unit sends the corresponding specific reading signal according to the driving signal, and receives the working state data emitted by all RFID tag units in the specified region in response to the signal; otherwise, the data transceiver unit sends the fraudulent data to the data request module, and simultaneously sends the warning information to the early warning terminal, and can also record the attack source MAC address and synchronously send it to the early warning terminal.

[0051] The specific reading signal includes a wake-up signal sequence and a task signal sequence, wherein the wake-up signal sequence is generated based on the sequence region and the verification key, and can adopt a pulse form; the task signal sequence is generated based on the demand representation region, and adopts a specific frequency or a specific power. After the RFID tag unit responds to the wake-up signal sequence, the sensing data in the demand data time period is emitted. For a semi-active tag, the front part of the high-power pulse of the wake-up signal sequence can be read through antenna coil coupling when waking up, and the energy capable of being started instantaneously is obtained by temporarily charging the capacitor, and the specific pulse sequence in the latter part can be used to represent the verification key of the verification key region.

[0052] The historical reading times are recorded in the RFID tag unit and the centralized reading module, and the historical reading times are increased by 1 each time the centralized reading module receives a round of working state data emitted by all RFID tag units in the specified region in response to the specific reading signal, or the RFID tag unit emits a round of working state data. The verification key configuration process of the verification key region includes simplified transformation according to the device unique code of the centralized reading module and the historical reading times, obtaining the corresponding unique code password and historical reading password according to the preset password book, and combining the two to obtain the verification key. In this embodiment, the password book can adopt existing password technology, and the combination method can be simple superposition or complex operation, which depends on the security requirements of the system.

[0053] The carrier identity verification module is used as an auxiliary security mechanism of the system, and is used for verifying the carrier according to the action features. When the carrier enters the detection area near the centralized reading module, the action trajectory of the carrier is acquired within 20 seconds, the action features are extracted based on the action trajectory, consistency verification is performed, and the verification is passed through the consistency verification, otherwise the carrier is driven away or destroyed. The action trajectory is acquired through monitoring video, and the carrier needs to complete the specified action within the specified time period. The action trajectory of the carrier in the process of completing the specified action is acquired through the monitoring video detection of the specified angle. The point position is recorded each time the speed is zero, and the consistency verification is performed according to the last point map.

[0054] The edge processing module is connected with the data request module through wireless communication, and is used for analyzing and judging the working state data received from the data request module, and generating the state evaluation result of the corresponding oil equipment parts. The edge processing module internally comprises a data analysis unit and a state evaluation unit. The data analysis unit is responsible for formatting the received working state data and extracting key parameters. The state evaluation unit compares the extracted parameters with the preset threshold to generate the state evaluation result. The evaluation result includes three states of normal, abnormal and potential failure, and is sent to the early warning terminal through wireless communication.

[0055] The early warning terminal is connected with the edge processing module through wireless communication, and is used for receiving the state evaluation result output by the edge processing module, and issuing notification information according to the result, and acquiring the on-site situation of the location of the centralized reading module. The early warning terminal internally comprises a notification unit and an on-site monitoring unit. The notification unit is responsible for generating notification information such as SMS, email or sound and light alarm according to the state evaluation result. The on-site monitoring unit acquires the on-site situation of the location of the centralized reading module through a camera or a sensor, so that the management personnel can take timely measures.

[0056] In actual application scenarios, assuming that the above system is installed on a certain offshore oil platform, and the oil equipment parts on the platform are all equipped with sensor units and RFID tag units. When the working state of the equipment parts needs to be monitored, the inspection personnel carry the data request module into the coverage range of the centralized reading module. After the data request module verifies the identity of the inspection personnel through fingerprint verification, it generates a driving signal and sends it to the centralized reading module. After receiving the driving signal, the centralized reading module verifies whether the key area is consistent through the verification processing unit, and if consistent, the data transceiver unit sends a specific reading signal. The specific reading signal covers all RFID tag units in the antenna array range, and the RFID tag units send the sensor data of the required data period after responding to the signal. After receiving the sensor data, the centralized reading module sends it to the data request module, and the data request module transmits the data to the edge processing module. The edge processing module analyzes and judges the data, generates the state evaluation result and sends it to the early warning terminal. The early warning terminal issues notification information according to the evaluation result, and acquires the on-site situation of the location of the centralized reading module through the on-site monitoring unit, so that the management personnel can take timely measures.

[0057] As can be seen from the above embodiments, the present application realizes efficient collection of working state data of oil equipment parts by introducing an RFID sensing module combined with a centralized reading module. The integrated design of the sensor unit and the RFID tag unit eliminates the need for wiring in the data collection process, significantly reducing the risk of corrosion damage of traditional wired sensors caused by high salt mist and high humidity and other environmental factors. The centralized reading module covers all RFID tag units in a specified area through an antenna array, enabling batch data acquisition and avoiding the inefficiency of manual point-by-point inspection. The sub-regional design of the driving signal ensures the safety and accuracy of data transmission, while reducing the possibility of misreading and missing reading. The specified key verification mechanism of the data request module combined with the carrier identity verification module improves the security of the system. Non-mechanical bodies are verified through biological characteristics, and mechanical bodies are verified through action characteristics, effectively preventing unauthorized access. The edge processing module generates a state evaluation result by analyzing and judging the collected data in real time, providing a reliable basis for subsequent early warning. The warning terminal issues notification information in combination with the on-site situation, ensuring that management personnel can take timely measures to reduce the risk of failure.

[0058] In order to better enable those skilled in the relevant art to fully understand and implement the present application, the specific implementation principles of the present application are further supplemented below in combination with a specific application scenario.

[0059] On a certain offshore oil platform, an oil equipment part state recognition system based on RFID tags is installed. The key equipment parts of the platform include valves, pump bodies, flanges, and fasteners, all of which are equipped with sensor units and corresponding RFID tag units. The sensor units collect parameters such as temperature, vibration, pressure, strain, and corrosion state in real time and transmit the data to the bound RFID tag units for storage. The RFID tag units adopt semi-active or active tag forms, which can adapt to high-frequency data collection requirements and support installation in remote locations. For example, on components near the underwater Christmas tree, pressure-resistant and watertight active RFID tag units are used to ensure their normal operation in extreme environments. Miniaturized RFID sensing tags (with a minimum size of 6x6mm) can be permanently embedded on the surface of the equipment, combined with pressure-resistant and watertight packaging (IP68 level) to resist deep-sea environments; the reader can be fixedly installed at key nodes such as the equipment cabin entrance, or carried on the ROV to realize non-contact data collection, effectively avoiding the risk of personnel entering high-risk areas.

[0060] When the working status of the equipment parts needs to be monitored, the inspection personnel carry the data request module into the coverage range of the centralized reading module. First, the data request module confirms the identity of the inspection personnel through fingerprint verification. After the fingerprint information is extracted, it is compared with the pre-stored biological feature database. If the verification is passed, the data request module generates a driving signal and sends it to the centralized reading module. The structure of the driving signal includes a time area, a sequence area, a verification key area and a demand representation area. Among them, the time area records the time stamp of the signal sending, the sequence area contains the unique identification of all RFID tag units to be read in this round, the verification key area generates the verification key based on the device unique code and the historical reading times of the centralized reading module, and the demand representation area specifies the time period of the required sensing data. The centralized reader can quickly and batch read all tags (identity + status data) in the area, with much higher efficiency than manual inspection or single wireless sensor polling.

[0061] After the centralized reading module receives the driving signal, the verification processing unit verifies whether the verification key area in the driving signal is consistent according to the built-in key library. The verification key in the verification key area is configured as follows: the device unique code of the centralized reading module and the historical reading times are simplified and transformed according to a preset password book to obtain a unique code password and a historical reading password, respectively, and the two are combined through complex operation to generate a verification key .

[0062] ;

[0063] If the verification key area is consistent, the verification processing unit issues an instruction to the data transceiver unit, and the data transceiver unit generates a specific reading signal according to the driving signal. The specific reading signal is divided into a wake-up signal sequence and a task signal sequence. The wake-up signal sequence is generated based on the sequence area and the verification key, and adopts a pulse form; the task signal sequence is generated based on the demand representation area, and adopts a specific frequency or power. Through the antenna array, the specific reading signal covers all RFID tag units in the specified area.

[0064] The specified area is defined as a range with the centralized reading module as the center and a radius of 6 meters. The antenna array is composed of multiple directional antennas and is distributed around the centralized reading module to ensure that all RFID tag units in the signal coverage range can be effectively read. After receiving the wake-up signal sequence, the RFID tag unit activates the internal circuit and responds to the task signal sequence to send the sensing data in the demand data time period; the batch reading efficiency of the centralized reading module reaches 200 tags / s. For example, the antenna array (4 directional antennas) of the centralized reading module batch reads 12 RFID tag units on a certain pump body within 6 meters, and after responding to the signal, sends the temperature and vibration data in the past 24 hours to the data request module.

[0065] After the data request module receives the sensing data, it transmits the data to the edge processing module through wireless communication. The edge processing module internally contains a data analysis unit and a state evaluation unit. The data analysis unit formats the received working state data and extracts key parameters.

[0066] For example, from the sensing data of a certain pump body, the temperature is extracted as 85°C, the amplitude is 0.5 mm / s, the pressure is 15 MPa, and other parameters. The state evaluation unit compares the extracted parameters with the preset threshold. For example, if the temperature exceeds 90°C or the amplitude exceeds 1 mm / s, it is determined as an abnormal state; if the temperature is close to 80°C and the amplitude is close to 0.8 mm / s, it is determined as a potential failure state. The state evaluation result is sent to the early warning terminal through wireless communication.

[0067] After the early warning terminal receives the state evaluation result, the notification unit generates notification information according to the evaluation result. For example, if the state evaluation result of a certain valve is abnormal, the notification unit generates an SMS alarm message and sends it to the mobile terminal of the management personnel. At the same time, the on-site monitoring unit obtains the on-site situation of the centralized reading module through the camera or sensor to ensure that the management personnel can take timely measures. For example, if the temperature of a certain flange abnormally rises, the on-site monitoring unit confirms whether there is leakage or other abnormal phenomena on the surface of the flange through a thermal imaging camera.

[0068] In addition, the system also includes a carrier identity verification module to prevent unauthorized access. When a drone enters the detection area near the centralized reading module as a carrier, the monitoring video detects the motion trajectory of the drone within a specified time period. Based on the motion trajectory, the motion features are extracted, which can be monitored; the carrier needs to complete the specified action within a specified time period, and the monitoring video at a specified angle can detect and obtain the motion trajectory of the carrier during the completion of the specified action. Record the point position when the speed is zero each time, and perform consistency verification according to the final point map.

[0069] For example, the drone needs to complete the specified action of "ascending - hovering - descending", and the motion trajectory is recorded through the monitoring video. Record the point position when the speed is zero each time, and finally form a point map. The carrier identity verification module extracts the motion features and performs consistency verification with the pre-stored standard motion features. If the verification is passed, the drone is allowed to continue to perform the task; otherwise, the drone is driven away or destroyed.

[0070] As can be seen through the above steps, the present application realizes efficient collection and safe transmission of working state data of oil equipment parts. The integrated design of the sensor unit and the RFID tag unit avoids the corrosion damage risk of traditional wired sensors caused by high salt mist, high humidity and other environmental factors. The centralized reading module covers all RFID tag units in the specified area through the antenna array, can batch acquire data, and significantly improves the collection efficiency. The sub-regional design of the driving signal ensures the safety and accuracy of data transmission, reduces the possibility of misreading and missing reading. The specified key verification mechanism of the data request module combined with the carrier identity verification module improves the security of the system and effectively prevents unauthorized access. The edge processing module generates reliable state evaluation results by real-time analysis and judgment of the collected data, providing a basis for subsequent early warning. The warning terminal issues notification information in combination with the on-site situation to ensure that management personnel can take timely measures to reduce the risk of failure.

[0071] The present application provides an oil equipment part state identification method based on an RFID tag, applied to an oil equipment part state identification system based on an RFID tag.

[0072] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A status identification system for petroleum equipment components based on RFID tags, characterized in that, include: The RFID sensing module includes multiple sensor units and corresponding RFID tag units for acquiring working status data of the oil equipment components; A centralized reading module is used to send a specific reading signal and receive the working status data sent by all RFID tag units within a specified area in response to the specific reading signal; The data request module is used to drive the centralized reading module to send the specific reading signal after verification by the specified key, and download the required working status data from the centralized reading module; The edge processing module is used to process and judge the working status data received from the data request module to obtain the working status of the corresponding oil equipment parts. The early warning terminal is used to receive the working status judgment results of the oil equipment components, issue corresponding notification information, and obtain the on-site situation of the location of the centralized reading module. The process of verifying the specified key includes: The carrier type of the carrier carrying the data request module is determined. If the carrier type is a non-mechanical body, a key is specified for verification based on the biometrics of the carrier. If the carrier type is a mechanical body, a key is specified for verification based on the motion characteristics of the carrier. After successful verification, the data request module needs to generate a drive signal within a specified time. The centralized reading module then issues the corresponding specific reading signal based on the drive signal. Otherwise, the generation of the drive signal is stopped and the specified key verification needs to be performed again. The process of generating the driving signal includes: Input the reading order of all the sensor units to be read in this round, the serial number of the corresponding RFID tag unit, and the number of times it has been read in the past; Each sensor unit is constructed and a corresponding drive signal is emitted sequentially according to the reading order; The driving signal includes a time region representing the transmission time, a sequence region corresponding to the sequence code, a verification key region related to the number of times the historical data has been read, and a demand representation region for the time period of the sensor data demand. The specific read signals include a wake-up signal sequence and a task signal sequence; The wake-up signal sequence is generated based on the sequence region and the verification key; The task signal sequence is generated based on the demand representation region; After responding to the wake-up signal sequence, the RFID tag unit transmits the sensor data for the required data time period.

2. The RFID tag-based petroleum equipment component status identification system according to claim 1, characterized in that, The number of times the history has been read is recorded in the centralized reading module; Each time the centralized reading module receives the working status data emitted by all RFID tag units within a specified area in response to the specific reading signal, the historical reading count is incremented by 1.

3. The RFID tag-based petroleum equipment component status identification system according to claim 1, characterized in that, The centralized reading module includes a verification processing unit and a data transceiver unit; The verification processing unit verifies whether the verification key area in the drive signal is consistent according to the built-in key library. If they are consistent, the data transceiver unit sends the corresponding specific read signal according to the drive signal and receives the working status data sent by all RFID tag units in the specified area in response to the specific read signal. Otherwise, the data transceiver unit sends deceptive data to the data request module and simultaneously sends a warning message to the early warning terminal.

4. The RFID tag-based petroleum equipment component status identification system according to claim 1, characterized in that, The configuration process for the verification key in the verification key area includes: Based on the device unique code of the centralized reading module and the number of times it has been read in history, the corresponding unique code password and historical reading password are obtained by simplifying and converting according to the preset password book. The unique code password and the historical reading password are combined to obtain the corresponding verification key.

5. The RFID tag-based petroleum equipment component status identification system according to claim 1, characterized in that, The system also includes a carrier authentication module for verifying the carrier based on the action characteristics: When the carrier enters the detection area near the centralized reading module, the carrier's movement trajectory is acquired within a specified time period. The movement features are extracted based on the movement trajectory, and a consistency check is performed. If the consistency check is successful, the carrier is either driven away or destroyed.

6. A method for identifying the status of petroleum equipment components based on RFID tags, characterized in that, It is applied to the status identification system for petroleum equipment components based on RFID tags as described in any one of claims 1-5.

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