33results about How to "Ensure communication security" patented technology

The invention provides a digital certificate generation method and device, electronic equipment and a storage medium, and the method comprises the steps: receiving a certificate generation request sent by a user terminal, the certificate generation request comprises user information and an identifier of a certificate generation algorithm, and the certificate generation algorithm comprises a post quantum cryptographic algorithm and a preset national cryptographic algorithm; and generating a target mixed public key according to the post-quantum public key of the post-quantum cryptographic algorithm and a national cryptographic public key of a preset national cryptographic algorithm, generating a target digital certificate according to the user information and the target mixed public key, and sending the target digital certificate to the user terminal. The digital certificate is generated based on the post-quantum cryptographic algorithm and the national cryptographic algorithm, so that communication security can be ensured, quantum attacks are resisted, and certificate generation at an unconditional security level is realized.

The invention discloses an unmanned aerial vehicle group distributed management method based on a mobile active secret sharing technology, which supports off-line of a trusted institution and comprises the following steps: the trusted institution TA generates public parameters; a mobile base station MS and an unmanned aerial vehicle UAV participating in communication respectively register with a trusted mechanism in a registration stage, and acquire information such as a secret key and a certificate; the UAV joins the MS and is administered by the MS, and after mutual identity authentication, the MS distributes secret shares to the UAV; performing identity authentication on the unmanned aerial vehicle group; the unmanned aerial vehicles of the two groups share the share, group fusion is achieved, and after a new share is obtained, each unmanned aerial vehicle updates the certificate of the unmanned aerial vehicle. According to the method, the sub-secrets of the unmanned aerial vehicles are autonomously updated through a mobile active secret sharing technology, and fusion of completely decentralized unmanned aerial vehicle groups is realized. Secondly, an efficient certificate self-updating method is designed. The unmanned aerial vehicle can update the certificate only by calculating a threshold signature. Detailed safety certification and comprehensive experiments show that dynamic autonomous management of the distributed unmanned aerial vehicle group can be realized, and the method has good safety characteristics and relatively low calculation overhead.

The invention relates to the technical field of voiceprint recognition, in particular to an anti-fraud communication method based on voice change recognition. The method comprises the following steps: acquiring multi-dimensional voice feature data of a user, wherein the multi-dimensional voice feature data comprises timbre, frequency features, language rhythm, emotion features and pause modes; performing voice change possibility prediction according to the multi-dimensional voice feature data to obtain voiceprint feature prediction data; performing deep learning model training according to the voiceprint feature prediction data, and mapping voiceprint states and features under different call conditions to obtain voiceprint feature map data; and according to the voiceprint feature map data, carrying out simulation analysis on voice change recognition behaviors in different call states so as to obtain voice change recognition simulation data. According to the method, the call environment noise data and the network quality data are obtained in real time, the call quality model is constructed, cross-scene optimization and real-time adjustment are carried out, and the influence of the environment on recognition is effectively reduced.

The invention provides a zone area key efficient distribution and data encryption method based on quantum communication, which comprises the following steps that: firstly, a quantum key management platform charges a quantum protection key Kc and a certificate to a local communication bin of side equipment and charges a quantum protection key Ks and a certificate to end equipment, and then the end equipment S performs identity authentication to a local communication bin of side equipment C; the local communication bin of the side equipment C performs identity authentication on the end equipment S, and the local communication bin of the side equipment C generates a session key Kh; and finally, encrypting and decrypting downlink data, encrypting and decrypting uplink data and updating the secret key. According to the invention, the problems of low distribution efficiency and insufficient data encryption security of the transformer area key in the prior art can be solved.

The invention discloses a secret key following transmission system and method based on dynamic window encryption, and the system comprises a transmitting end which is configured to obtain a chaotic initial value and an original signal to be transmitted; processing the chaotic initial value through a public key encryption module and a first constellation mapping module to obtain encryption key information; the original signal is processed by a bit stream encryption module, a second constellation mapping module and a symbol encryption module to obtain encrypted information, the bit stream encryption module realizes bit stream encryption by using a disturbance sequence generated by a chaotic initial value, and the symbol encryption module realizes symbol-level scrambling by using a'dynamic window structure '; superposing the encrypted information and the encrypted key information by using a power division multiplexing module to obtain to-be-transmitted composite information; the composite information is converted into a time domain signal through fast inverse Fourier transform (IFFT), and signal transmission is carried out through a channel; and dual improvement of communication safety and communication efficiency is realized.

The invention discloses a heat supply and power generation decoupling method and system for improving the peak regulation capacity of a heat supply unit, and relates to the technical field of thermal power generation. Through the synergistic effect of a phase change heat storage technology and efficient electric heating equipment, the peak regulation capacity of the heat supply unit is remarkably improved, and through reasonable configuration of system components, the heat supply and power generation decoupling efficiency is improved. Balance of economical efficiency and high efficiency of the system is achieved, operation cost is reduced, operation parameters can be monitored in real time through the intelligent control unit, intelligent regulation and control can be implemented on the basis of monitoring data, meanwhile, a self-adaptive learning function is achieved, a control algorithm is optimized from historical operation data, efficiency of the system is improved, and the service life of the system is prolonged. By configuring an intelligent sensor network, a communication module and a user interface, communication safety and visual friendliness of user operation can be ensured, the problem that the peak regulation capacity of a traditional combined heat and power generation system is insufficient is effectively solved, and the system has high practicability and popularization value and is worthy of popularization. And an innovative solution can be provided for improving the overall peak regulation performance and economy.

The invention provides an end-to-end encryption communication method and electronic equipment in wireless communication construction, and relates to the technical field of wireless communication, and the method comprises the steps: obtaining starting end equipment in the wireless communication construction, and generating a predetermined secret key; transmitting a predetermined public key in the predetermined secret key to terminal equipment in the wireless communication construction based on a predetermined digital certificate, and studying and judging whether an effective transmission constraint is met or not; if yes, performing encryption processing on target communication data by using a predetermined private key in the predetermined secret key on the starting end equipment to obtain target encrypted communication data, and transmitting the target encrypted communication data; and at the terminal device, performing decryption processing by using the predetermined public key. According to the method and the device, the problem that key exchange and digital certificate transmission cannot be efficiently and safely carried out in the prior art can be solved. The end-to-end encryption security communication target is realized, and the technical effects of ensuring the security of the communication data in the transmission process and preventing unauthorized access and data leakage are achieved.

The invention relates to the technical field of communication, and particularly provides an information processing method, equipment and system, electronic equipment, a storage medium and a product. The cloud server performs multi-key homomorphic encryption processing and proxy re-encryption processing on a plurality of pieces of first information from a plurality of terminals, and can obtain a second intermediate processing result encrypted by using a public key of an initiating device based on the first information encrypted by a private key of each terminal, so that after the second intermediate processing result is sent to the initiating device, the second intermediate processing result is sent to the initiating device, and the security of the initiating device is improved. And the initiating device can decrypt by using a private key of the initiating device to obtain a final result. In conclusion, according to the technical scheme provided by the invention, the security processing of the information can be realized on the premise of ensuring the privacy security of multiple parties; furthermore, when the scheme is applied to a general sensing positioning scene, safe and accurate positioning of the positioned target can be realized on the premise of ensuring the position privacy of the positioning task participating terminal and the position privacy of the positioned target.

The present invention proposes a device and method for automatically identifying a GSM-R interference source, comprising: using a uniform circular array antenna and a GSM-R dedicated antenna to receive radio signals along a railway; a real-time multi-channel receiver transmits the radio signals received by the uniform circular array antenna to a real-time processing unit; a power divider divides the radio signals received by the GSM-R dedicated antenna into a signal I and a signal II; a sweep frequency processing module performs sweep frequency processing on the signal I; a real-time spectrum processing module performs real-time spectrum processing on the signal II; the real-time processing unit receives spatiotemporal positioning information and obtains current cell carrier frequency configuration information through a basic database; identifies adjacent GSM-R cells according to the spatiotemporal positioning information, the carrier frequency configuration information and the radio signals received by the uniform circular array antenna, and monitors multipath signals of the adjacent cells; identifies interference signals according to the sweep frequency processing result, the real-time spectrum processing result, the multipath monitoring result and the carrier frequency configuration information, and obtains interference identification results.

The present invention belongs to the field of application technology of secure transmission of power intelligent inspection data, and specifically discloses a data transmission method and system using a combination of a national secret algorithm and a DL / T476 protocol, including the following steps: S1, deploying an image data acquisition module and an intelligent recognition algorithm module on the edge computing terminal device on the new energy power generation station side; S2, using a randomly generated SM4 key to encrypt the inspection result with the SM4 algorithm; S3, encrypting the SM4 key with the SM2 algorithm; S4, parsing the DL / T476 data message at the intelligent inspection center on the new energy area side; S5, forming an inspection report and a report through message decryption by the intelligent inspection center and DL / T476 protocol parsing. The beneficial effect of the present invention is that the national secret algorithm is integrated with the DL / T476 protocol, so that the domestic cryptographic application is embedded in the power communication protocol, the endogenous security direction ensures the communication security, solves the risks of data forgery, deception, tampering, etc. that are difficult to protect against by traditional border security protection, and expands the application of commercial cryptography in the field of power communication.

The invention discloses an application software security starting method and a computer readable storage medium, and the method comprises the steps that when application software is started, terminal equipment obtains the state of the application software; if the state of the application software is a preset state, the terminal device and the application server side obtain a new key, and the preset state comprises a first starting state and a risk state; the terminal device obtains to-be-evaluated data, the to-be-evaluated data comprises terminal data, application operation data and key updating data, the to-be-evaluated data is encrypted through the new key, and a ciphertext obtained through encryption is sent to the application server; after receiving the ciphertext, the application server decrypts the ciphertext through a new key to obtain data to be evaluated; the application server performs risk assessment on the to-be-assessed data to obtain a risk value, and executes a corresponding risk strategy according to the risk value, and the risk strategy comprises risk prompting, key updating and limiting operation. According to the invention, safe starting of the application software is realized.

The invention relates to a vehicle door control method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: receiving a vehicle door control request sent by a user terminal; a to-be-controlled vehicle door is determined based on the vehicle door control request, and the vehicle door control request is sent to a vehicle door controller of the to-be-controlled vehicle door based on the short-distance wireless communication chip; and based on the short-distance wireless communication chip, receiving a first current vehicle door state of the to-be-controlled vehicle door returned by the vehicle door controller, and controlling the to-be-controlled vehicle door based on the vehicle door control request and the first current vehicle door state. According to the method provided by the invention, the communication safety between the vehicle body domain controller and the vehicle door controller can be ensured, and the wiring harness cost, the manual installation cost and the later maintenance cost can be reduced.

The invention belongs to the related technical field of satellite communication identity authentication, and discloses an attribute verification satellite communication anonymous access method, communication equipment and system, and the method comprises the steps that user communication equipment requests to access a satellite and a satellite verification access request, a user side selects an attribute value, a count value, a random number, a temporary public key and a storage path as privacy values, a corresponding public value is obtained through calculation, an access legality voucher is generated through the zero-knowledge proof technology, the satellite verifies the anonymous voucher through the zero-knowledge proof technology, and access authentication of the user is achieved. According to the method, the zero-knowledge proof technology is adopted for anonymous authentication, the privacy security of the user is protected, the attribute matching degree, the voucher validity, whether the behavior is a hostile attack behavior or not and the legality of an attribute source can be verified by selecting the parameters, the strict degree of anonymous access authentication is greatly improved, and the communication security of the system is ensured.

This application relates to a vehicle unlocking and locking system, a passive radio frequency key, and a vehicle, to solve the technical problems of the passive radio frequency key relying on battery power, which leads to the inability to unlock the vehicle when the battery is depleted, and the risks of data leakage and vehicle theft associated with mobile APP keys. When the vehicle body controller is in the wake-up state, the UWB radio frequency unit sends a high-frequency ranging signal and receives a first response signal carrying authentication information returned by the key. The first response signal is generated by the key using energy segmented from the high-frequency ranging signal to process the information carried in the high-frequency ranging signal. The vehicle body controller calculates the distance between the key and the vehicle based on the time difference between signal transmission and reception. When the vehicle is in a partially dormant state, the vehicle body controller generates a vehicle unlocking command based on the distance and the key's authentication result. When the vehicle is in a fully awake state, the vehicle body controller generates a vehicle locking command based on the distance, the key's authentication result, and the vehicle's status information.

An antenna beam mechanism with a vibration reduction function belongs to the field of rail vehicle antenna beam devices, which includes an antenna beam crossbeam, two accessory component mounting hangers and four elastic vibration reduction shaft devices. The two accessory component mounting hangers are arranged at both ends of the antenna beam crossbeam in a mirror-symmetrical manner, and each accessory component mounting hanger is fixedly connected to the end of the antenna beam crossbeam through two elastic vibration reduction shaft devices. The present invention can minimize the vibration impact transmitted by the frame or wheel set and the impact caused by splashing debris on the track surface when the train is running, and then, under the premise of ensuring that the wireless communication antenna and other accessory equipment are reliably fixed, the interference of the vibration spectrum on the communication frequency signal is greatly reduced, ensuring the communication security of the wireless signal.

The invention relates to the technical field of Internet of Vehicles, and discloses a communication connection life cycle monitoring method and system, a domain controller and a medium. The method comprises the steps that a monitoring file is obtained, the monitoring file is loaded to a kernel, and the monitoring file comprises a hook point; capturing a data packet generated in the communication connection process of the vehicle end and the cloud end based on the hook point; analyzing a message carried by the data packet, and determining communication connection information based on the type of the message; and monitoring the communication connection life cycle according to the communication connection information to obtain a communication connection monitoring result. By implementing the technical scheme of the invention, the real-time monitoring and capturing of the data packet are realized, the leakage of potential information is reduced, the overhead of data replication is reduced, and the processing performance of the data packet is improved.

The utility model discloses a low power circuit integration junction box, including casing, modular interface array, embedded control module and safety protection module, wherein, the modular interface array contains at least three kinds of specifications test terminal, and each test terminal is connected with the measured circuit board through the elastic contact, embedded control module contains microprocessor, programmable signal generator and AD conversion unit. In addition, the low power circuit integration junction box still includes power module and wireless communication module. The utility model provides junction box through using S3C2451 embedded control processor to realize the automatic measurement and judgement of low power point fast, and can save the various measurement parameters of detected through programmable signal generator and AD conversion unit, then through wireless communication module carries out data transmission, and the convenient implementation detection result inquiry and transmission have improved the detection efficiency, and the detection result also has higher measurement accuracy and good repeatability.

The invention relates to a base station access authentication method and device, a security gateway, a base station and a storage medium, and the method comprises the steps that the security gateway responds to a received IKEAUTH request message sent by the base station, and obtains a first MAC address carried by the IKEAUTH request message, and the first MAC address is an encrypted security load; packaging based on the first MAC address to obtain an access request message; sending the access request message to an authentication server for MAC authentication; and under the condition that a feedback message of the authentication server is received, the feedback message is sent to the base station, so that the base station is accessed to the security gateway, and the feedback message is sent under the condition that MAC authentication performed by the authentication server is passed. By adopting the scheme of the invention, even if the authentication information is acquired by a third party, the third party cannot acquire the real MAC address, so that the authentication information forged by the third party cannot pass the MAC authentication of the authentication server, the access of a pseudo base station is prevented, the access security of the base station is improved, and the communication security of the base station and a core network is ensured.

The invention belongs to the technical field of computer security, and particularly relates to a computer communication security processing device which comprises a desktop assembly, an adjusting assembly and a limiting assembly which are arranged at the top of the desktop assembly, a heat dissipation assembly arranged on the side wall of the adjusting assembly and a case assembly arranged at the top of the adjusting assembly. According to the computer communication safety processing device, a fan is used for heat dissipation of the computer communication safety processing device and the case assembly, meanwhile, the heat dissipation assembly on the side face can be matched with a built-in fan to transmit wind power to a grid, it is guaranteed that the temperature in the case assembly is stable, and computer communication safety is guaranteed; the limiting assembly is arranged on the display assembly, so that the display screen is stably limited in the middle of the limiting frame, and the stability of the display screen can be ensured; the adjusting assembly is arranged on the desktop assembly, and the angle of the case assembly and the angle of the display assembly can be changed by changing the distance between the adjusting plate and the adjusting frame, so that the overall adjustability is more flexible.

The present application provides a method and system for planning the construction scale of a charging station, and relates to the technical field of communication analysis of charging stations. The method includes: collecting communication configuration parameters of the central control center of the charging station; determining the communication protocol for the central control center of the charging station to communicate with the charging piles; determining charging pile samples; obtaining fast charging communication flow indicators and slow charging communication flow indicators; establishing a communication capacity optimization model, optimizing the communication capacity, and outputting charging pile scale indicators; generating a charging pile planning scheme. This application can solve the technical problem in the prior art that the charging pile scale analysis is inaccurate due to the lack of communication performance analysis between the charging piles and the central control center, thereby affecting the communication security of the charging piles. After performing communication tests on the fast charging piles and the slow charging piles, the communication capacity is optimized to ensure the communication security between the charging piles in the charging station and the central control center, thereby assisting in the construction of the charging station.

The application belongs to the technical field of trusted authentication, and discloses a remote user trusted authentication system, method and medium in an Internet of Things environment. The system comprises a registration center (RC), which is a trusted server and is used for safely registering or initializing other entities; an intelligent device, which is arranged in an environment and is used for collecting and transmitting data; a gateway, which supports interconnection between different protocol networks and has computing and storage capabilities; a user, who accesses remote intelligent devices through a login device; and the login device, which is used for user trustworthiness verification. The login device includes but is not limited to a mobile device, an intelligent card and a PC. Through the system and method, the trusted authentication of remote users can be realized, and safe communication between the user and the intelligent device is established. Meanwhile, the application can also solve the problems of public key cryptography complexity, user authentication vulnerability and symmetric cryptography limitations.

The utility model discloses a butterfly-shaped leading-in optical cable for a pipeline, which comprises an optical cable core, an inner protection assembly is arranged on the outer side of the optical cable core, an outer protection assembly is arranged on the outer side of the inner protection assembly, the outer protection assembly comprises an outer protection sleeve arranged on the outermost layer, and an insulation protection sleeve is arranged in the outer protection sleeve. A tearing rope is arranged between the outer protective sleeve and the insulating protective sleeve, a plurality of cutting needles are symmetrically arranged on the outer side of the tearing rope, one end of each cutting needle is inserted into the outer protective sleeve, a protective layer is fixedly arranged on the inner side of the insulating protective sleeve, a waterproof layer is fixedly arranged on the inner side of the protective layer, and an anti-corrosion layer is fixedly arranged on the inner side of the waterproof layer. After the butterfly-shaped leading-in optical cable is led into a room, the outer protective sleeve needing to be stripped can be rapidly stripped, and meanwhile the whole cable has the advantages of being resistant to bite, waterproof, resistant to corrosion and good in rebound resilience.

The invention belongs to the technical field of communication security, and discloses an ESIM of an intelligent pos system and an SIM switching method, the switching method judges whether an ESIM card or an SIM card is used by reading specific partition content in Flash, and the switching method specifically comprises the following steps: step 1, ESIM enabling judgment; step 2, enabling and switching the ESIM; and step 3, restarting the terminal equipment. According to the invention, after the terminal equipment is started, the ESIM and the SIM are selected and switched through the ESIM switch in the Settings, the adaptability of the equipment and the convenience in use are improved, a user needs to use different operator services in different countries and regions under the globalization background, the switching method enables the user to easily adapt to different network environments, and the user experience is improved. According to the method, local communication service can be enjoyed without replacing the entity SIM card, and finally, the leakage of transaction information is prevented through an encryption technology, so that the security of the terminal equipment is improved.

The invention relates to the field of communication, and provides a network structure control method, a network structure, electronic equipment and a vehicle. The method comprises the following steps: a gateway sends a verification message to a target electronic controller on a network segment; the target electronic controller verifies the received verification message to obtain a target verification result, and feeds back the target verification result to the gateway through the network segment; and the gateway performs data information transmission with the target electronic controller by using the corresponding network segment in response to the fact that the target verification result is successful in verification, or disconnects the communication connection between the corresponding network segment and the target electronic controller in response to the fact that the target verification result is determined to be failed in verification. Through the verification process of the verification message, the tampered target electronic controller can be accurately detected, and then the communication of the tampered target electronic controller is disconnected, so that the tampered target electronic controller cannot carry out data transmission, and the communication security of a network structure is ensured.

The embodiments of the present application provide an encryption method, apparatus, device and storage medium, which relate to the field of encryption technology. The method includes: a first device sends an encryption request to a second device, the second device generates a response message for the encryption request, and the second device sends a response message to the first device. The first device encrypts the data to be processed based on the first key generation algorithm and the target encryption algorithm, obtains the encrypted data, and sends the encrypted data to the second device. The second device decrypts the encrypted data based on the second key generation algorithm and the target decryption algorithm to obtain the data to be processed. Since the second device does not directly send the encryption key to the first device, but sends the first key generation algorithm and the target encryption algorithm, the communication security between the first device and the second device is effectively guaranteed.

This application discloses a quantum-secure communication method and system for the entire Mesh self-organizing network. For any quantum-secure terminal in the Mesh self-organizing network, since the quantum-secure terminal pre-stores the decryption true random numbers corresponding to each one-way receiving relationship and the encryption true random numbers corresponding to each one-way sending relationship in the Mesh self-organizing network, the quantum-secure terminal can perform quantum decryption on the first quantum-encrypted data sent from any sender in the Mesh self-organizing network based on the decryption symmetric true random numbers corresponding to each one-way receiving relationship in the Mesh self-organizing network. Based on the encryption true random numbers corresponding to each one-way sending relationship in the Mesh self-organizing network, it can quantum-encrypt and send the second plaintext data to any receiver in the Mesh self-organizing network, thereby realizing quantum-secure communication between any two quantum-secure terminals in the Mesh self-organizing network and ensuring the communication security of the decentralized Mesh self-organizing network.

The invention belongs to the field of communication, and particularly discloses a switch port security binding system and method, and the system comprises an ARM controller and a network switching chip. The method comprises the following steps of: pre-configuring all MAC (Media Access Control) addresses meeting requirements through the ARM controller; judging whether the MAC address of the equipment accessed to the switch port meets the set MAC address or not; if yes, the switch port forwards normally; and if not, the switch port rejects forwarding. The external ARM controller is adopted, required MAC addresses are flexibly increased or removed through a specific development environment of the external ARM controller, multiple ports and multiple MAC addresses can be bound, the MAC address binding does not need to judge the first-time address configuration condition, static configuration can be carried out by inputting related MAC addresses through the ARM controller, the configuration mode is flexible, and the configuration efficiency is high. The binding mode is simple to operate, invasion of illegal equipment is prevented, and the network communication security of the switch is ensured.

The invention provides a PLC secure access authentication method and system based on an identification cryptographic algorithm, and the method comprises the steps: a PLC device to be accessed to an industrial control network sends an identity registration request to a key generation center, and the key generation center completes the registration of the PLC device to be accessed to the industrial control network according to the identity registration request, the PLC equipment is allowed to be accessed; the to-be-accessed industrial control network PLC equipment initiates an access authentication request to equipment needing to be connected with the to-be-accessed industrial control network PLC equipment, and safety access authentication between the equipment is completed; the equipment needing to be connected with the equipment comprises PLC (Programmable Logic Controller) equipment or running state monitoring equipment; and an encryption security communication channel is established between the PLC equipment allowed to be accessed and the equipment needing to be connected with the PLC equipment. According to the invention, access authentication and establishment of an encrypted secure communication channel are needed when any PLC equipment accesses the industrial control network, so that the communication security and reliable operation of the PLC equipment in the industrial control network are effectively guaranteed.

The invention discloses a forged telecommunication audio detection method, a computer device and a storage medium, and the method comprises the steps: obtaining first voice data of a first voice communication party in a first voice collection period, extracting first statistical feature data and first biological feature data from the first voice data, and inputting a first input tensor obtained by processing the first statistical feature data and the first biological feature data into the artificial intelligence model for processing, and obtaining a first detection result of the artificial intelligence model. The method can capture the first statistical feature data, the first biological feature data and other features in the first voice data, thereby accurately and efficiently judging whether the first voice data of the first voice communication party belongs to the forged telecommunication audio or not, selecting to execute operations such as release, ensuring normal voice passage, and improving the user experience. The possibility that bad voice information generated by a computer is propagated through a telecommunication voice communication network is reduced, and communication safety is guaranteed. The method is widely applied to the technical field of communication.

The invention discloses a method for a communication module to lightly and safely receive a cloud AT instruction and related equipment. The method for the communication module to lightly and safely receive the cloud AT instruction comprises the steps of dynamically determining whether to use a security protocol to communicate with a communication operation maintenance platform or not based on the type of the AT instruction issued by the communication operation maintenance platform; or deciding whether to use a security protocol to communicate with the communication operation maintenance platform or not based on the network environment. According to the invention, when the AT instruction received by the communication module is a non-control instruction or the communication module accesses the communication operation maintenance platform through the intranet IP address, the communication module does not use a security protocol to communicate with the communication operation maintenance platform; according to the invention, handshake during establishment of secure connection by using a security protocol and processing duration and computing resources required by encryption and decryption operation in a data transmission process are reduced, and communication time delay and power consumption of the Internet of Things terminal are remarkably reduced while communication security is ensured.