An industrial tablet computer with RFID communication

Abstract

The present application relates to the field of industrial control and information technology, and discloses an industrial tablet integrated machine with RFID communication, including a whole machine body, an RFID module, a data encryption system and a key management system. The whole machine body includes a front frame, a middle shell and a rear shell. The front frame is an integrated capacitive touch screen, a camera is arranged at the lower end, an RFID module identification area is arranged at the lower left corner, and a microphone is arranged at the lower right end; a retractable antenna hole is arranged at the upper left position of the rear shell. The present invention solves the problems of poor communication stability of existing industrial tablet integrated machines in complex signal environments, insufficient security of RFID data transmission, low efficiency of multi-tag interference identification, and rigid switching mechanism by adopting a dual antenna module combined with an intelligent switching system, dynamic session key generation and AES‑256 encryption algorithm, dual tag identification technology of primary and secondary identification codes, and an optimization scheme combining signal detection with machine learning decision-making.

Description

Technical Field

[0001] The present invention relates to the field of industrial control and information technology, and in particular to an industrial tablet integrated machine with RFID communication. Background Art

[0002] In the context of Industry 4.0 and intelligent transformation, industrial tablet computers are widely used in production management, logistics tracking, information scheduling and other scenarios. Users' requirements for their performance and reliability are gradually increasing. However, when facing complex industrial environments, existing technologies have exposed some bottlenecks that are difficult to avoid.

[0003] In terms of signal transmission, there are often multiple wireless signal interferences in industrial environments, such as electromagnetic interference generated by the operation of high-frequency equipment or cross-interference of multiple communication frequency bands. Existing equipment usually adopts a fixed single antenna design, which has poor adaptability to such complex environments, resulting in unstable signal reception or high packet loss rate. This problem is particularly prominent in scenarios with high data real-time requirements, such as automated production control, where signal interruption may directly affect the continuous operation of the production line.

[0004] In addition, existing technologies also have limitations in the collection and management of RFID data. For example, many devices only support RFID tags of specific protocols or brands. When multiple tags are repeated or mixed, existing devices often cannot correctly distinguish valid data, resulting in confusion in information collection. This problem is particularly prominent in some complex environments where multiple tags and multiple brands coexist. This not only affects the versatility of the equipment, but also reduces the efficiency of enterprises in logistics management and production scheduling.

[0005] In terms of data security, traditional encryption mechanisms often protect data based on fixed keys and lack dynamic key management. Fixed keys can be easily captured or cracked by attackers, leading to sensitive information leakage. Especially during RFID data transmission, static encryption methods can no longer meet the higher requirements for data confidentiality and security. This security risk is particularly serious in areas such as supply chain tracking and financial logistics. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an industrial tablet all-in-one machine with RFID communication, which solves the problems of unstable signal transmission of the industrial tablet all-in-one machine in complex environments, low RFID tag recognition efficiency, multi-tag interference and insufficient data transmission security.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an industrial tablet integrated machine with RFID communication, comprising a whole machine body 1, an RFID module, a data encryption system and a key management system, the whole machine body 1 comprises a front frame, a middle shell and a rear shell, the front frame is an integrated capacitive touch screen, a camera 3 is arranged at the lower end thereof, an RFID module identification area 4 is arranged at the lower left corner, and a microphone is arranged at the lower right end; A retractable antenna hole 2 is provided at the upper left position of the rear shell, and a dual antenna module is installed in the retractable antenna hole 2, which is used to dynamically adjust the antenna length in a signal interference environment; The dual antenna module switches between a single antenna mode and a dual antenna cooperative mode through an intelligent switching system; The RFID module is used to read the data in the RFID tag, and encrypt, store and securely transmit the read data; The data encryption system is used to encrypt, store and transmit RFID data; The key management system is used to generate device keys based on device serial numbers and dynamically generate session keys in combination with timestamps and random numbers.

[0008] Preferably, the RFID module includes: Data acquisition module, used to read material information from RFID tags; A tag identification module, used to read and identify the primary identification code and the secondary identification code of the RFID tag; A data storage module, used to store the read material information into a device storage chip or an external database; The data transmission module is used to encrypt the read data and transmit it to the target device or system.

[0009] Preferably, the dual antenna module includes: The antenna control module is used to adjust the working state of the antenna according to the instructions of the intelligent switching system; Antenna telescopic module, used to dynamically adjust the antenna length according to signal strength and interference level; The multi-band signal processing module is used to receive and process 4G and WiFi band signals, amplify, convert and optimize the signals to improve signal transmission quality.

[0010] Preferably, the data encryption system comprises: AES-256 encryption module, used for encrypted storage and transmission of RFID tag data; Data integrity verification module, which generates data checksums based on the SHA-256 hash algorithm to verify the integrity of data during transmission and storage; The encryption key generation module is connected to the key management system and is used to generate the dynamic session key required for encryption.

[0011] Preferably, the key management system includes: A master key generation module, used to generate a unique master key through a random number generator and store it in a security chip; A device key derivation module, used to derive a device key from a master key in combination with a device serial number; The dynamic session key generation module combines the device key, timestamp and random number to generate a one-time session key.

[0012] Preferably, the intelligent switching system comprises: Signal detection module, used to collect signal strength, interference strength and packet loss rate of dual antenna modules in real time; The algorithm decision module analyzes the data of the signal detection module based on the machine learning model and generates switching instructions; The mode switching module is used to switch between the single antenna mode and the dual antenna cooperative mode according to the instructions of the algorithm decision module.

[0013] Preferably, the tag identification module includes: A primary identification code generation unit, used to generate a primary identification code of the tag through a hash algorithm, wherein the primary identification code has a unique identification function and is used for fast matching and tag verification; The secondary identification code generating unit is used to generate a secondary identification code based on the primary identification code plus a redundant check code, wherein the secondary identification code provides a backup identification when the primary identification code cannot be matched normally.

[0014] The present invention also provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the above method is implemented.

[0015] The present invention also provides a storage medium on which a computer program is stored. When the computer program is executed by a processor, the method described above is implemented.

[0016] The present invention provides an industrial tablet integrated machine with RFID communication, which has the following beneficial effects: 1. The present invention adopts a technical solution of combining a dual antenna module with an intelligent switching system to achieve dynamic optimization of the antenna in a complex signal environment. Compared with the prior art in which a fixed single antenna structure cannot cope with interference changes, the present invention improves communication stability and signal reception strength through automatic switching of antenna modes, especially in a high-interference environment.

[0017] 2. The present invention realizes efficient encryption and transmission security of RFID data through dynamic session key generation and AES-256 encryption algorithm. The leakage risk caused by key fixation in the prior art is effectively avoided. At the same time, the introduction of dynamic keys makes the encryption of data transmitted each time independent and non-reproducible, which greatly enhances the reliability of data storage and transmission.

[0018] 3. The present invention adopts dual tag recognition technology of primary and secondary identification codes, which can quickly identify RFID tags and effectively deal with tag duplication or interference scenarios. Traditional technology has weak recognition capabilities for multiple brands and multiple tags, while the present invention achieves high-precision recognition in complex environments through the backup identification code mechanism, solving the problem of data collection confusion caused by multiple tag interference in the prior art.

[0019] 4. The present invention designs an intelligent switching system that combines signal detection with machine learning decision-making, which can quickly evaluate the current working mode based on the signal parameters collected in real time. Compared with the traditional switching method based on fixed thresholds, the present invention greatly improves the flexibility and accuracy of decision-making, avoids unnecessary frequent switching problems, and is particularly effective in scenarios where signal interference changes dynamically. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the whole machine of the present invention; Figure 2 It is a schematic diagram of the telescopic antenna hole structure of the present invention; Figure 3 It is a schematic diagram of the system framework of the present invention; Figure 4 This is a schematic diagram of the RFID module framework of the present invention; Figure 5 It is a schematic diagram of the data encryption system framework of the present invention; Figure 6 It is a schematic diagram of the dual antenna module framework of the present invention; Figure 7 Schematic diagram of the key management framework of the present invention Figure 8 It is a schematic diagram of the framework of the intelligent switching system of the present invention; Fig. 9 It is a logic flow chart of the label encryption algorithm of the present invention; Fig.10 The figure is a flow chart of the dual tag implementation of the present invention.

[0021] Among them, 1. The main body of the machine; 2. The retractable antenna hole; 3. The camera; 4. The RFID module identification area. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Please see attached Figure 1 -Attached Figure 3 The embodiment of the present invention provides an industrial tablet integrated machine with RFID communication, including a whole machine body 1, an RFID module, a data encryption system and a key management system. The whole machine body 1 includes a front frame, a middle shell and a rear shell. The front frame is an integrated capacitive touch screen, a camera 3 is arranged at the lower end, an RFID module identification area 4 is arranged at the lower left corner, and a microphone is arranged at the lower right end; A retractable antenna hole 2 is provided on the upper left side of the rear shell, and a dual antenna module is installed in the retractable antenna hole 2, which is used to dynamically adjust the antenna length in a signal interference environment; Specifically, in this embodiment, the whole machine body 1 includes three parts: a front frame, a middle shell and a rear shell: The front frame adopts an integrated capacitive touch screen design, with a high-definition camera 3 at the bottom, an RFID module identification area 4 at the bottom left, and a microphone integrated at the bottom right for collecting ambient audio signals. This functional integrated layout optimizes the operating experience while providing convenient data collection and multimedia support.

[0024] The middle shell is made of aluminum-magnesium alloy, combined with parallel heat dissipation holes and dustproof nets, and a built-in intelligent temperature control fan to dynamically adjust heat dissipation. This design not only enhances the durability of the device, but also improves the adaptability of the device in high temperature environments.

[0025] A retractable antenna hole 2 is set on the upper left side of the back shell, and a dual antenna module is installed inside. The module supports 4G and WiFi multi-band communications, and switches between single antenna mode and dual antenna collaborative mode through an intelligent switching system. The antenna telescopic length can be dynamically adjusted according to the signal interference intensity, thereby effectively improving the sensitivity of signal reception.

[0026] The RFID module is used to read the data in the RFID tag, and encrypt, store and securely transmit the read data; The RFID module includes: Data acquisition module, used to read material information from RFID tags; A tag identification module, used to read and identify the primary identification code and the secondary identification code of the RFID tag; A data storage module, used to store the read material information into a device storage chip or an external database; The data transmission module is used to encrypt the read data and transmit it to the target device or system.

[0027] The tag recognition module includes: A primary identification code generation unit, used to generate a primary identification code of the tag through a hash algorithm. The primary identification code has a unique identification function and is used for fast matching and tag verification; The secondary identification code generating unit is used to generate a secondary identification code based on the primary identification code and the redundant check code, and the secondary identification code provides a backup identification when the primary identification code cannot be matched normally.

[0028] Specifically, in this embodiment, the data acquisition module reads material information from the RFID tag through the built-in RFID reader and writer of the device, and stores it in a standardized data structure to facilitate subsequent processing operations. The acquisition process uses a high-sensitivity radio frequency antenna to transmit data, ensuring efficient data reading in an interference environment.

[0029] In this embodiment, the tag recognition module implements dual tag recognition technology. Figure 5 Its main functions include primary identification code generation, matching and backup identification mechanism of secondary identification code: The primary identification code of the tag is generated through a hash algorithm for fast matching and verification. The formula is as follows: Among them, M is the main identification code, H is the hash function (such as SHA-256), ID is the unique identifier of the tag, and D is the material data bound to the tag.

[0030] On the basis of the primary identification code, a redundant check code is added to generate a secondary identification code as a backup identification method when the primary identification fails. The formula is: S=F(M), where S is the secondary identification code and F is the redundant check code generation function (such as Hamming Code).

[0031] The calculation formula for the overall tag recognition success rate is: in, is the overall recognition success rate of the tag, is the success rate of matching the main identification code, is the secondary identification code matching success rate.

[0032] The above-mentioned dual tag recognition mechanism greatly improves the recognition accuracy in high-interference or duplicate tag scenarios, making the system's compatibility rate for multi-brand RFID tags exceed 90% and the recognition accuracy rate reach more than 97%.

[0033] In this embodiment, the data storage module implements the storage management of material information in the following ways: The collected material information is encrypted and stored in the non-volatile memory inside the device.

[0034] Support data upload to external databases, such as enterprise production management system (MES) or enterprise resource planning system (ERP), to achieve material tracking and scheduling.

[0035] In this embodiment, the data transmission module encrypts the data using the AES-256 algorithm and transmits it to the target device or system. The specific encryption process is as follows: The AES-256 algorithm is used to encrypt the collected data. The formula is: Among them, C is the encrypted ciphertext, E is the AES-256 encryption function, is the dynamically generated session key, and P is the plaintext data (material information).

[0036] The session key is dynamically generated using the device key, timestamp, and random number, using the formula: in, is the session key, H is the SHA-256 hash function, It is the device key, which is derived from the master key. T is the timestamp, which is used to ensure timeliness. R is a random number, which is used to increase the randomness of the key.

[0037] The data checksum is generated by SHA-256 to verify the integrity of the data during transmission and storage. The formula is: In the decrypted data, the checksum is recalculated and compared with the original value to ensure that the data has not been tampered with.

[0038] In this embodiment, the operation process of the RFID module is Writing process: The data acquisition module reads the material information and generates a primary identification code and a secondary identification code.

[0039] The data encryption system uses dynamically generated session keys to encrypt material information.

[0040] The encrypted data and the primary and secondary identification codes are written into the RFID tag via radio frequency signals.

[0041] Reading process: Reading phase: The tag identification module first reads the primary identification code for matching, and if it fails, it switches to the secondary identification code.

[0042] Data decryption: Decrypt the read data using the session key to restore the material information.

[0043] Data verification: Verify data integrity by recalculating the SHA-256 checksum of the data.

[0044] Data transmission: The read and decrypted data is encrypted via AES-256 and uploaded to the target device or system, supporting real-time transmission and remote data management.

[0045] The dual-antenna module switches between single-antenna mode and dual-antenna collaborative mode through an intelligent switching system; The dual antenna module includes: The antenna control module is used to adjust the working state of the antenna according to the instructions of the intelligent switching system; Antenna telescopic module, used to dynamically adjust the antenna length according to signal strength and interference level; The multi-band signal processing module is used to receive and process 4G and WiFi band signals, amplify, convert and optimize the signals to improve signal transmission quality.

[0046] Specifically, in this embodiment, the dual antenna module is composed of the following sub-modules: The antenna control module is used to adjust the working state of the antenna according to the instructions of the intelligent switching system.

[0047] Select single antenna mode or dual antenna cooperative mode based on received signal strength and interference level data.

[0048] Antenna telescopic module: used to dynamically adjust the physical length of the antenna according to signal strength and interference level.

[0049] The antenna length adjustment formula is as follows: in, is the current length of the antenna, is the maximum length of the antenna, is the signal-to-noise ratio of the current antenna, is the maximum signal-to-noise ratio.

[0050] Dynamic adjustment of antenna length ensures real-time optimization of signal receiving area and sensitivity.

[0051] The multi-band signal processing module is used to process 4G and WiFi band signals, and supports the amplification, conversion and optimization of multi-band signals.

[0052] Signal amplification and conversion formula: in, is the output signal strength, is the input signal strength, G is the signal gain coefficient, and it is dynamically adjusted to adapt to the frequency band changes.

[0053] Workflow and algorithm implementation of intelligent switching system In this embodiment, the intelligent switching system works collaboratively through the following modules: Signal detection module: collects the signal strength, interference strength and packet loss rate of the dual antenna module in real time.

[0054] Formula definition: in, is the signal power, is the noise power, is the interference signal power, is the total signal power.

[0055] Algorithm decision module: Based on the machine learning model, it analyzes the data of the signal detection module and generates antenna switching instructions.

[0056] Optimal antenna mode selection formula: in, is the optimal antenna mode (single antenna mode S or dual antenna cooperative mode D), n is the number of antennas, and α and β are signal weight parameters.

[0057] Mode switching module: According to the instructions output by the algorithm decision module, switch between the single antenna mode and the dual antenna cooperative mode.

[0058] Mode switching based on: When the single antenna signal weight is lower than the threshold, it switches to the dual antenna cooperation mode.

[0059] Priority switching conditions for dual-antenna cooperative mode: in, is the antenna signal weight, and T is the mode switching threshold.

[0060] In this embodiment, the dual antenna module cooperates with the intelligent switching system to achieve the following goals: The signal reception sensitivity is improved by about 70%.

[0061] The data transmission packet loss rate is reduced to less than 2%.

[0062] The communication stability of the equipment in high-interference environments is significantly enhanced, and the data transmission accuracy can reach over 95%.

[0063] Through dynamic adjustment of signal strength and interference level, as well as antenna mode switching based on algorithmic decision-making, this technical solution ensures the efficient operation and stable communication capabilities of the industrial tablet all-in-one in complex industrial environments.

[0064] The data encryption system is used to encrypt, store and transmit RFID data; The data encryption system includes: AES-256 encryption module, used for encrypted storage and transmission of RFID tag data; Data integrity verification module, which generates data checksums based on the SHA-256 hash algorithm to verify the integrity of data during transmission and storage; The encryption key generation module is connected to the key management system and is used to generate the dynamic session key required for encryption.

[0065] Specifically, in this embodiment, the AES-256 encryption module is used to encrypt, store and transmit RFID tag data. Its core function is to encrypt the data read by the RFID based on the AES-256 encryption algorithm to ensure the confidentiality and non-tamperability of the data.

[0066] AES-256 encryption formula data encryption uses the following formula: Among them, C is the encrypted ciphertext, E is the AES-256 encryption function, is the dynamically generated session key, and P is the plaintext data (the read RFID tag data).

[0067] AES-256 decryption formula decryption uses the following formula: P=D( ,C)， Among them, P is the decrypted plaintext data, and D is the AES-256 decryption function. The session key is the same as that used during encryption.

[0068] The AES-256 encryption algorithm is highly efficient and secure, and uses a 256-bit key length, which significantly improves its ability to resist brute force cracking, making it suitable for high-security requirements in industrial environments.

[0069] In this embodiment, the data integrity verification module is used to ensure the integrity of encrypted data during transmission and storage, and to prevent data corruption due to transmission errors or malicious tampering.

[0070] The data check value generation system generates a data check value based on the SHA-256 hash algorithm. The formula is as follows: in, is the data check value, H is the SHA-256 hash function, and P is the original data (plaintext).

[0071] Integrity verification process: During the transmission process, the system will transmit the data checksum together with the encrypted data.

[0072] At the receiving end, recalculate the checksum of the decrypted data , and the original checksum value To compare: ,like If the verification is successful, the data is tampered with.

[0073] Anti-tampering performance The SHA-256 hash algorithm has high collision resistance, and the generated checksum is highly unique, which can effectively detect data tampering or transmission errors.

[0074] In this embodiment, the encryption key generation module works in conjunction with the key management system to provide high-security key support for the AES-256 encryption module by dynamically generating session keys.

[0075] Dynamic session key generation The session key is generated by combining the device key, timestamp and random number. The specific formula is as follows: in: is a dynamically generated session key. H is the SHA-256 hash function. is the device key, which is derived from the master key. T is the timestamp, which is used to increase the timeliness of the key. R is a random number, which is used to increase the randomness of the key.

[0076] Dynamic key features: Timeliness: The addition of a timestamp ensures that the key used for each encryption is different, effectively preventing key reuse attacks.

[0077] Randomness: The introduction of random numbers enhances the unpredictability of keys and improves the encryption system's ability to resist attacks.

[0078] Key security: Dynamic session keys are derived from the master key and are only used in the current operation. They will not be stored for a long time, greatly reducing the risk of key leakage.

[0079] Please see attached Fig. 9 In this embodiment, the operation process of the data encryption system is as follows: Data encryption process: After reading the RFID tag data, the system generates a dynamic session key through the encryption key generation module.

[0080] The read tag data is encrypted using the session key and AES-256 encryption algorithm to generate ciphertext.

[0081] At the same time, the data integrity verification module is used to generate a data check value.

[0082] The encrypted ciphertext and check value are stored or transmitted together.

[0083] Data decryption and integrity verification process: At the data receiving end, the system generates a session key through the same key generation mechanism.

[0084] Use the session key to decrypt the ciphertext using the AES-256 decryption algorithm to restore the plaintext data.

[0085] The data integrity verification module is used to regenerate the check value for the decrypted data and compare it with the check value included in the transmission to ensure data integrity.

[0086] If the verification passes, the data is considered safe and reliable; otherwise, the system alarms and marks the abnormal data.

[0087] See also Figure 6-7 ,The key management system is used to generate device keys based on the ,device serial number and dynamically generate session keys by combining the ,timestamp and random number.

[0088] The key management system includes: A master key generation module, used to generate a unique master key through a random number generator and store it in a security chip; A device key derivation module, used to derive a device key from a master key in combination with a device serial number; The dynamic session key generation module combines the device key, timestamp and random number to generate a one-time session key.

[0089] Specifically, in this embodiment, the master key generation module is responsible for generating a unique master key and securely storing it in the security chip of the device to ensure that the key cannot be tampered with or extracted.

[0090] Master Key Generation The master key is generated by the device's built-in high-performance random number generator using the following formula: in, is the master key, It is a random number generation function that generates a 256-bit high-security key.

[0091] Master key storage After the master key is generated, it is stored in the security chip inside the device. The security chip has a physical tamper-proof function to prevent the master key from being illegally read or modified.

[0092] In this embodiment, the device key derivation module generates a unique device key from the master key based on the device serial number, which is used for personalized encryption operations of the device.

[0093] Device Key Generation The device key is generated using the following formula: in, is the device key. H is the hash function (such as SHA-256). The ID is the unique serial number of the device.

[0094] Device Key Storage After the device key is generated, it is stored in the device's non-volatile memory and access is restricted through an access control mechanism so that only specific encryption modules can call it.

[0095] In this embodiment, the dynamic session key generation module combines the device key, timestamp and random number to dynamically generate a one-time session key for each data encryption or decryption operation.

[0096] Dynamic session key generation The generation formula of the session key is: in: is a dynamic session key. H is a hash function (such as SHA-256). is the device key. T is the timestamp, which is used to ensure the timeliness of the key. R is a random number, which is used to increase the randomness of the key.

[0097] Dynamic characteristics: Uniqueness: The device key and random number are combined to make each generated session key different.

[0098] Timeliness: The addition of a timestamp means that the key can only be used within the current time period.

[0099] Randomness: The addition of random numbers further enhances the unpredictability of the key.

[0100] Session key usage: The session key is only used in a single encryption or decryption operation and is immediately invalidated after the operation is completed. It is not persistently stored to ensure key security.

[0101] In this embodiment, the operation process of the key management system is as follows: Master key generation and storage: During the device manufacturing phase, the master key generation module generates the master key using a random number generator.

[0102] The master key is written into the device's security chip in an encrypted manner, and an anti-tampering mechanism is enabled to ensure the uniqueness and security of the master key.

[0103] Device Key Derivation: During the initial startup or initialization phase of the device, the device key derivation module calls the master key and the device serial number to generate the device key.

[0104] The device key is stored in the device's non-volatile memory to ensure that it can still be used normally after power failure.

[0105] Dynamic session key generation: During each data encryption or decryption operation, the system calls the device key derivation module to generate the device key.

[0106] The dynamic session key generation module combines the device key, the current timestamp and a random number to generate a one-time session key for the current encryption or decryption task.

[0107] In this embodiment, the key management system has the following advantages: High security: The master key is stored in a physical tamper-proof chip to prevent unauthorized reading.

[0108] Session keys are dynamically generated to avoid security risks caused by key reuse.

[0109] Dynamic and timely: The session key is generated based on the timestamp, ensuring that the key is different for each operation.

[0110] The introduction of random numbers enhances the unpredictability of key generation.

[0111] flexibility: The system supports device-level key management to meet device-specific encryption requirements.

[0112] Supports efficient key management in various industrial environments.

[0113] See also Figure 8-10 , the intelligent switching system includes: Signal detection module, used to collect signal strength, interference strength and packet loss rate of dual antenna modules in real time; The algorithm decision module analyzes the data of the signal detection module based on the machine learning model and generates switching instructions; The mode switching module is used to switch between the single antenna mode and the dual antenna cooperative mode according to the instructions of the algorithm decision module.

[0114] Specifically, in this embodiment, the signal detection module is responsible for real-time monitoring of the operating status of the dual antenna module and collecting the following key parameters: Signal Strength (SNR) Signal strength is calculated by the signal-to-noise ratio using the following formula: Where SNR is the signal-to-noise ratio, is the signal power, is the noise power.

[0115] Interference intensity (I) Interference intensity indicates the impact of electromagnetic interference in the environment on signal quality. Its measurement formula is: Where: I is the interference intensity. is the power of the interference signal.

[0116] Packet Loss Rate (PLR) The packet loss rate is calculated through data packet statistics, and the formula is as follows: in, is the packet loss rate, is the number of packets lost, The total number of packets sent.

[0117] Through real-time acquisition of the signal detection module, the system can accurately obtain the current communication status of the antenna and provide data support for mode switching.

[0118] In this embodiment, the algorithm decision module is the core unit of the intelligent switching system, which analyzes the data collected by the signal detection module based on the machine learning model to generate a switching decision.

[0119] Input data The input data of the algorithm decision module include: SNR is signal-to-noise ratio, I is interference intensity, and PLR is packet loss rate.

[0120] The machine learning model learns the matching relationship between environmental signal characteristics and antenna patterns through training data, evaluates the pros and cons of the current pattern, and generates the optimal switching instructions. The objective function is defined as: in, is the switching threshold, α, β, γ are the weight coefficients of signal strength, interference strength and packet loss rate respectively.

[0121] Switching logic: when The system maintains the current mode.

[0122] when , the system triggers a switching command and adjusts to another antenna mode (single antenna mode or dual antenna collaborative mode).

[0123] In this embodiment, the mode switching module receives the instruction output by the algorithm decision module and executes the switching operation of the antenna mode.

[0124] The mode switching module supports the following two working modes: Single antenna mode: Works in low-interference environments and reduces power consumption.

[0125] Dual-antenna collaborative mode: Works in high-interference environments to improve signal reception sensitivity and stability.

[0126] Switch execution flow: When the mode switching module receives the switching instruction, it first verifies the data validity of the signal detection module.

[0127] The physical connection and signal transmission path of the antenna are adjusted according to the switching instruction.

[0128] After the switch is completed, monitor the communication performance in real time to verify whether the switch effect meets expectations.

[0129] In this embodiment, the operation process of the intelligent switching system is as follows: Data collection phase: The signal detection module collects SNR, I, and PLR data in real time.

[0130] The collected signal parameters are transmitted to the algorithm decision module.

[0131] Decision analysis phase: The algorithm decision module calls the machine learning model to analyze the signal parameters and calculate the adaptability of the current mode.

[0132] A switching instruction is generated according to the calculation result.

[0133] Mode switching phase: The mode switching module receives the switching instruction and adjusts the antenna working mode.

[0134] After the switching is completed, continue to monitor the signal status and provide feedback on the switching effect.

[0135] In this embodiment, the advantages of the intelligent switching system are: High-precision signal detection: Real-time monitoring of signal-to-noise ratio, interference intensity, and packet loss rate ensures that switching decisions are based on accurate data.

[0136] Intelligent switching decision: Combined with machine learning models, it intelligently evaluates the signal characteristics of the current environment and dynamically adjusts the working mode.

[0137] Efficient switching execution: The mode switching module responds quickly to switching instructions to ensure communication stability during the switching process.

[0138] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An industrial tablet integrated machine with RFID communication, comprising a machine body (1), an RFID module, a data encryption system and a key management system, wherein the machine body (1) comprises a front frame, a middle shell and a rear shell, and is characterized in that: The front frame is an integrated capacitive touch screen, a camera (3) is arranged at its lower end, an RFID module identification area (4) is arranged at the lower left corner, and a microphone is arranged at the lower right end; A retractable antenna hole (2) is provided at the upper left side of the rear shell, and a dual antenna module is installed in the retractable antenna hole (2) for dynamically adjusting the antenna length in a signal interference environment; The dual antenna module switches between a single antenna mode and a dual antenna cooperative mode through an intelligent switching system; The RFID module is used to read the data in the RFID tag, and encrypt, store and securely transmit the read data; The data encryption system is used to encrypt, store and transmit RFID data; The key management system is used to generate device keys based on device serial numbers and dynamically generate session keys in combination with timestamps and random numbers.

2. The industrial tablet integrated machine with RFID communication according to claim 1, characterized in that: The RFID module comprises: Data acquisition module, used to read material information from RFID tags; A tag identification module, used to read and identify the primary identification code and the secondary identification code of the RFID tag; A data storage module, used to store the read material information into a device storage chip or an external database; The data transmission module is used to encrypt the read data and transmit it to the target device or system.

3. The industrial tablet integrated machine with RFID communication according to claim 1, characterized in that: The dual antenna module comprises: The antenna control module is used to adjust the working state of the antenna according to the instructions of the intelligent switching system; Antenna telescopic module, used to dynamically adjust the antenna length according to signal strength and interference level; The multi-band signal processing module is used to receive and process 4G and WiFi band signals, amplify, convert and optimize the signals to improve signal transmission quality.

4. The industrial tablet integrated machine with RFID communication according to claim 1, characterized in that: The data encryption system comprises: AES-256 encryption module, used for encrypted storage and transmission of RFID tag data; Data integrity verification module, which generates data checksums based on the SHA-256 hash algorithm to verify the integrity of data during transmission and storage; The encryption key generation module is connected to the key management system and is used to generate the dynamic session key required for encryption.

5. The industrial tablet integrated machine with RFID communication according to claim 1, characterized in that: The key management system comprises: A master key generation module, used to generate a unique master key through a random number generator and store it in a security chip; A device key derivation module, used to derive a device key from a master key in combination with a device serial number; The dynamic session key generation module combines the device key, timestamp and random number to generate a one-time session key.

6. The industrial tablet integrated machine with RFID communication according to claim 1, characterized in that: The intelligent switching system comprises: Signal detection module, used to collect signal strength, interference strength and packet loss rate of dual antenna modules in real time; The algorithm decision module analyzes the data of the signal detection module based on the machine learning model and generates switching instructions; The mode switching module is used to switch between the single antenna mode and the dual antenna cooperative mode according to the instructions of the algorithm decision module.

7. The industrial tablet integrated machine with RFID communication according to claim 2, characterized in that: The tag identification module comprises: A primary identification code generation unit, used to generate a primary identification code of the tag through a hash algorithm, wherein the primary identification code has a unique identification function and is used for fast matching and tag verification; The secondary identification code generating unit is used to generate a secondary identification code based on the primary identification code plus a redundant check code, wherein the secondary identification code provides a backup identification when the primary identification code cannot be matched normally.

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