1164 results about "Bluetooth communication" patented technology

The invention relates to the technical field of battery testing, and discloses a truck lithium battery testing method and device based on Bluetooth communication. The method comprises the following steps: performing intelligent remote matching processing on Bluetooth identification information of a truck lithium battery management system to obtain a remote Bluetooth control key, and performing lithium battery data acquisition protocol test processing to obtain a dual-channel acquisition instruction set; performing dynamic voltage, current and temperature cooperative acquisition processing on the dual-channel acquisition instruction set to obtain a multi-dimensional battery working condition characteristic spectrum; remote parameter linkage calibration processing is carried out on the multi-dimensional battery working condition characteristic spectrum, an intelligent calibration control sequence is obtained, remote charging and discharging management test processing is carried out, and a battery running state monitoring record is obtained; and performing remote health assessment processing on the battery running state monitoring record to obtain a lithium battery performance test report. According to the lithium battery testing scheme, physical connection is not needed, operation is easy and convenient, and the real-time monitoring capability is achieved, so that the testing efficiency and flexibility are improved.

The invention discloses a low-power-consumption Bluetooth device connection matching detection system and method, and relates to the technical field of Bluetooth communication, and the method comprises the steps: sending a broadcast signal to a surrounding environment, enabling a scanning function by a scanning device, scanning the broadcast signal, and recognizing a target device from a scanning result; evaluating the environmental complexity according to the environmental noise data and the broadcast signal strength, and dynamically adjusting a search strategy according to the environmental complexity to obtain a connectable device list; calculating a dynamic matching score of the connectable device according to the real-time state information, and performing identity verification on the connectable device according to the dynamic matching score to obtain a target connection device; the stability of connection matching is judged by periodically detecting signal strength and communication quality information, unstable connection is interrupted according to a detection result, and reconnection is tried. According to the invention, the problem of unstable pairing possibly occurring in the connection process of the BLE equipment can be effectively solved, and the reliability of the equipment and the user experience are improved.

The invention discloses a multi-scene linkage smart home lamp cloud collaborative management system and method, and particularly relates to the technical field of smart home management, and the method comprises the following steps: collecting operation parameters of a low-power-consumption Bluetooth communication link, and generating an interference judgment value through a machine learning model, so as to judge whether electromagnetic interference exists or not; and if interference is detected, calculating an interference intensity index and an influence breadth index, and classifying interference levels through a logical reasoning model. According to the interference level, a communication link is optimized or switched to a cloud collaborative link, stable communication, state synchronization and instruction execution of the system in multi-scene linkage are ensured, and the control reliability of the smart home lamp is improved; through real-time interference judgment and dynamic link optimization, the communication stability of the smart home lamp system in a complex environment is improved, timely execution and state synchronization of a control instruction are ensured, and high efficiency and reliability of multi-scene linkage control are realized in combination with cloud collaborative management.

The invention relates to the technical field of artificial intelligence, and discloses a Bluetooth communication intelligent speech translation method and system based on multi-mode enhancement, and the method comprises the steps: collecting a multi-channel audio signal through a built-in multi-microphone array of a Bluetooth device, carrying out the dynamic direction self-adaptive beam forming of the multi-channel audio signal, and carrying out the self-adaptive beam forming of the multi-channel audio signal; extracting a Mel spectrogram feature of the direction enhancement signal, identifying lip regions of a plurality of candidate speakers in each frame of real-time speaking video captured by a camera, performing time sequence convolution on the lip regions to obtain a lip movement time sequence embedded vector, calculating a correlation score with the Mel spectrogram feature, separating the direction enhancement signal, and obtaining a lip movement time sequence embedded vector; and performing text transcription and conversion on the high-confidence separation voice to obtain a translation language text, and sending the synthesized target translation voice to a preset mobile terminal through the Bluetooth device to obtain a target translation result. According to the method, the real-time performance and accuracy of speech translation are improved in a multi-person scene, far-field speech, noise interference and accent difference.

The invention relates to the technical field of intelligent voice interaction, in particular to an intelligent Bluetooth voice remote control system based on AI semantic analysis. Comprising a voice acquisition unit, a Bluetooth communication unit, a voice recognition unit, an AI semantic analysis unit and a control execution unit, and the Bluetooth communication unit is used for establishing low-power-consumption Bluetooth connection with target equipment and supporting bidirectional data transmission. By combining advanced localized model library, edge calculation optimization, multi-modal data fusion and dynamic semantic map technologies, the recognition accuracy, the real-time response speed and the context understanding ability of the voice instruction are remarkably improved, and meanwhile, the data privacy is guaranteed, so that efficient, personalized, natural and smooth user interaction experience is realized.

The invention relates to the technical field of Bluetooth communication, and discloses an optimization method for secure communication of Bluetooth chip equipment. The method comprises the following steps: identifying a device type identifier and a protocol version feature, extracting a hardware capability parameter and generating an initial security policy set; collecting channel data, and calculating a stability index and a dynamic noise baseline; then, screening and sorting security policies to generate an execution queue, adjusting an encryption strength threshold according to a noise baseline to perform iterative optimization, and outputting final policy configuration; and when the target Bluetooth chip establishes the communication connection, loading the final security policy configuration and monitoring the channel state in real time, and triggering a policy dynamic switching mechanism when the channel state change exceeds the preset tolerance so as to optimize the security communication effect of the Bluetooth chip equipment. According to the method, the security policy can be accurately matched with the device and the channel state, the policy is dynamically adjusted, and the security and the stability of communication of the Bluetooth chip device are effectively improved.

The invention provides a power distribution automation terminal security debugging method based on Bluetooth communication, and the method comprises the steps: extracting a historical operation record and a current task context from an operator identity identifier, calculating a real-time permission range of resource access, and adjusting an initial access boundary according to the real-time permission range; a security gateway module is embedded in a Bluetooth communication channel, a cross-domain data exchange request is intercepted and analyzed, whether the request exceeds the adjusted access boundary is judged, and if yes, transmission is refused; analyzing the cross-domain data exchange request, extracting a source domain identifier and a target domain identifier of a data packet from the cross-domain data exchange request, and encrypting the data packet to obtain encrypted cross-domain transmission data; and obtaining a decryption key distribution record of the encrypted cross-domain transmission data in the security domain of the receiving end, judging whether the key is matched or not, if so, decrypting the data and transmitting the data to the target domain, and otherwise, discarding the data.

To further enhance interest by various kinds of customization and increase convenience of various kinds of customization.SOLUTION: A game machine 10 communicates information for Bluetooth connection, such as a password predetermined for a smartphone SP when the smartphone SP capable of performing NFC communication appears within an NFC communication zone of the game machine 10, and performs pairing of Bluetooth communication with the smartphone SP when the information for Bluetooth connection is transmitted from the smartphone SP. When the pairing is completed, the setting of a game performance of the game machine 10 can be executed by operation to a player's smartphone SP.SELECTED DRAWING: Figure 228

The invention relates to the technical field of authority control, in particular to a Bluetooth-based operation and maintenance authority control system, which comprises a Bluetooth link identification module, a task risk assessment module, an authority adaptation decision module, a task path verification module and an execution consistency verification module. By acquiring the Bluetooth communication address and the channel number and combining the hopping frequency and the stability, the link security state identification is realized, the communication legality judgment precision is improved, the task risk is evaluated by introducing the equipment performance and the communication parameters, the bearing capacity judgment precision is improved, the permission level, the execution frequency and the historical success rate are combined, and the reliability of the system is improved. The permission matching state is dynamically verified, and the task success rate is optimized. Relay node addresses are compared with declaration path structure consistency, accurate and reliable paths are ensured, execution environments are verified according to device roles and instruction contents, instruction execution feasibility judgment is enhanced, all links are compared based on real-time data and structures, task whole-process closed-loop control is formed, and operation safety and decision accuracy are improved.

The invention relates to the field of remote management of parking locks, in particular to an intelligent parking lock remote management method and system based on Bluetooth communication. The method comprises the following steps: acquiring an intelligent parking lock operation log and an intelligent parking lock real-time Bluetooth connection state parameter; according to the intelligent parking lock operation log, user personalized behavior habit evolution is carried out, user portrait modeling is carried out, and an unlocking behavior portrait of each user is constructed; based on the unlocking behavior portrait of each user, real-time user behavior abnormal deviation quantification and abnormal parking lock use decision making are carried out on the intelligent parking lock real-time Bluetooth connection state parameters, and an abnormal parking lock early warning strategy is generated; when the real-time user behavior abnormal deviation value does not exceed a preset behavior deviation threshold value, triangulation positioning distance measurement and user accurate positioning calculation are conducted on the intelligent parking lock real-time Bluetooth connection state parameters, and real-time position coordinates of the user are obtained. According to the invention, safe and efficient remote management of the parking lock is realized.

The invention relates to the technical field of smart home, and discloses an integrated control method and system for Bluetooth smart home, and the method comprises the steps: obtaining hardware parameters and communication protocol data; performing initial role allocation according to the hardware parameters and the communication protocol data to obtain an initial network structure chart; performing flexibility analysis according to the initial network structure chart to obtain a dual role device set; performing equipment interconnection efficiency optimization according to the initial network structure chart and the dual-role equipment set, and adjusting a communication protocol of the dual-role equipment to obtain an optimized network structure chart; performing simulation operation according to the optimized network structure diagram, acquiring real-time power consumption data and interconnection delay data of each device, and performing clustering to obtain device state groups; and carrying out topology configuration optimization according to the equipment state groups to obtain a final equipment network topological graph. The method has the following effect that the transmission efficiency of Bluetooth communication between smart homes can be improved.

The invention relates to the technical field of vehicle-mounted starting batteries, in particular to a vehicle-mounted starting battery capable of keeping emergency starting of a vehicle in a wireless mode. The battery realizes monitoring and protection of information such as voltage, current and battery cell temperature through a battery management system (BMS), and receives an instruction from a user mobile phone through a wireless Bluetooth communication module so as to control the discharge state of the battery. The battery management system (BMS) comprises a cell acquisition port, a battery equalization circuit, an MOS drive circuit, an acquisition chip (AFE), a temperature sensor (NTC) acquisition port, a microprocessor unit (MCU), a communication interface (UART / 485 / CAN), a parameter / protection information storage unit (ROM), a function key reserved port, a power conversion circuit, a power device (MOSFET) and a precision high-power resistor (shunt). According to the invention, real-time monitoring and protection of key parameters such as battery voltage, current and battery cell temperature are realized through a built-in battery management system (BMS).

The invention discloses a large-current switch built-in electric energy meter terminal temperature measurement and temperature control method, and relates to the technical field of electric energy meter terminal temperature measurement and temperature control. The method comprises the following steps: carrying out real-time temperature acquisition on an electric energy meter terminal, and adaptively adjusting communication parameters; the temperature is adjusted and controlled based on a PID algorithm, and the temperature adjusting stability is analyzed; and the temperature is automatically judged, an ending instruction is sent, and quitting is conducted within the safe temperature range. According to the terminal temperature measurement and temperature control method for the large-current switch built-in electric energy meter, the accuracy and the real-time performance of temperature monitoring are improved by adopting an incremental PID control algorithm and a dynamically calibrated thermal resistance sensor, communication errors in the temperature measurement and temperature control process are reduced by optimizing Bluetooth communication, and the terminal temperature measurement and temperature control efficiency is improved. The whole reliability of the system is improved, the safety and convenience of operation are improved through an automatic test process and a safe exit mechanism, and better effects are achieved in the aspects of accuracy, real-time performance and safety.

The invention discloses a Bluetooth key connection control method and device, equipment, a medium and a product, and relates to the technical field of Bluetooth communication. The connection control method of the Bluetooth key comprises the steps that under the condition that a vehicle and the Bluetooth key are in a connection state, motion data of a carrier of the Bluetooth key in a first time period and the signal strength of the Bluetooth key are obtained; determining a first motion state of the carrier according to the motion data in the first time period; determining a relative position relationship between the Bluetooth key and the vehicle according to the signal intensity of the Bluetooth key in the first time period; and when the first motion state meets a first disconnection condition and the relative position relationship meets a second disconnection condition, disconnecting the connection between the vehicle and the Bluetooth key. According to the invention, the vehicle power consumption caused by continuous wakeup of the Bluetooth key can be avoided, so that the service life of the vehicle-mounted electronic control unit can be prolonged.

The invention discloses a Bluetooth communication method and system based on a navigator, electronic equipment and a medium, and relates to the technical field of communication. The method comprises the following steps: establishing communication connection among a first Bluetooth module, a second Bluetooth module and a third Bluetooth module; a mobile phone incoming call signal of the driver is received, and the mobile phone incoming call signal is sent to the vehicle-mounted navigator through the first Bluetooth module to give an incoming call prompt; responding to the answering operation, and transferring the incoming call signal of the mobile phone to the helmet of the driver through the second Bluetooth module; obtaining posture data of a driver helmet, heart rate data of a driver and vehicle speed data of the target vehicle, and calculating a current driving state index of the driver based on the posture data, the heart rate data and the vehicle speed data; and when the driving state index is greater than an index threshold value, the incoming call signal of the mobile phone is transferred to the helmet of the passenger through the third Bluetooth module so as to complete the call operation. By implementing the technical scheme provided by the invention, the effect of improving the safety of the driver in the driving communication process is achieved.

The invention discloses a capsule robot for collecting intestinal flora and a control method of the capsule robot. The capsule robot comprises a capsule robot body and a rotatable collecting module installed in the capsule robot body. A collecting port is formed in the capsule robot body, a plurality of collecting cabins are formed in the rotating face of the collecting module, and the collecting module rotates to enable the collecting cabins to be communicated with or not communicated with the collecting port. The capsule robot is small in size and capable of achieving the flora sampling function at the same time, all the assemblies are compactly integrated in the capsule robot, the cross contamination problem between different detection parts and different collection cabins is avoided through structural design and certain sealing treatment, a control circuit is a small-size control panel, and the control circuit is simple in structure and convenient to operate. According to the capsule robot, circuit layout and space utilization are optimized, the size is reduced, meanwhile, functional integrity is guaranteed, remote non-contact collection in the body of a patient can be achieved through Bluetooth communication wireless control, and the capsule robot has the long-acting power management capacity.

Embodiments of the disclosure provide for improved Bluetooth communication security in vehicles. In the context of a method, the method includes obtaining, from a computing device, at least one feature of a communication specification for a vehicle, wherein: the communication specification defines data sharing protocols between a sensor or computing device aboard the vehicle and a vehicle management system to enable wireless communication by a Bluetooth communication mode without disabling means of the sensor, computing device, or vehicle management system for communication by a second mode. The method includes generating a vulnerability of the communication specification based on the at least one feature; determining a mitigation operation based on the vulnerability; and providing a recommendation comprising the mitigation operation to the at least one computing device to enable modification of the communication specification toward reducing the vulnerability.

The invention relates to the technical field of wireless communication networks, in particular to a vehicle-mounted multi-device Bluetooth communication cooperative management system, which comprises a connection priority scheduling module, a dynamic channel allocation module, an interference suppression optimization module, a load balancing adjustment module and a frequency switching coordination module. According to the invention, through extracting the device connection state and the communication requirement, comparing the communication priority in real time, improving the connection scheduling efficiency, and dynamically adjusting the bandwidth and the power in combination with the load and the channel occupation, the channel is prevented from being occupied by a single device for a long time, the channel utilization rate is improved, the interference abnormal device combination is rapidly identified when the interference occurs, and the interference suppression is executed; the method is advantaged in that interruption caused by signal conflicts is reduced, flow redistribution is carried out on high-load equipment through load analysis, uneven communication pressure is alleviated, a frequency switching path is optimized, delay and interruption caused by unreasonable switching are reduced, stable connection, resource balance and interference suppression under multi-equipment concurrent communication are realized, and communication efficiency is improved.

The invention discloses a method and a device for communication between a piece of swan gap system equipment and Bluetooth equipment. The method comprises the steps that when a communication interface is called by an APP, an SDK stores service parameters transmitted by the communication interface, creates a main thread safety function, starts a sub-thread, generates a Bluetooth communication instruction in the sub-thread according to the service parameters, takes the main thread safety function as a parameter to call a switching interface to switch a currently running thread back to the main thread from the sub-thread, and sends the Bluetooth communication instruction to the main thread; locking the sub-thread, calling the sending interface to send the Bluetooth communication instruction to the Bluetooth device, receiving response data returned by the Bluetooth device within a set time, unlocking the sub-thread, obtaining a response result from the response data in the sub-thread, and sending the response result to the Bluetooth device. And taking the main thread security function as a parameter to call a switching interface to switch the currently running thread back to the main thread from the sub-thread, and returning a response result to the APP by the SDK.

The invention discloses a driving test timing anti-cheating system and method, and the system comprises a timing card punching device, a signal detection module, and a central processor, and the timing card punching device comprises a Bluetooth communication module; the signal detection module comprises a frame number reading unit, a vehicle state acquisition unit and a gyroscope sensor which are integrated on the same circuit board, the frame number reading unit acquires a VIN code, the vehicle state acquisition unit acquires a vehicle speed, a rotating speed and an ignition key state, and the gyroscope sensor detects X / Y / Z axis acceleration; the central processing unit binds a vehicle VIN code to a cloud background, compares the current VIN code with the bound VIN code when the vehicle is started, and performs class hour validity verification according to the vehicle state and data detected by the gyroscope sensor; the driving test cheating behavior is thoroughly solved through triple dynamic verification chains including vehicle frame number lifelong locking, vehicle signal-gyroscope fusion analysis and timing and card punching equipment anti-disassembly monitoring.

The invention discloses a sensing device for ball hitting detection and a tennis racket. The sensing device comprises a sensor element, and the sensor element is combined with a data fusion algorithm to conduct data monitoring on the ball hitting force, the ball hitting speed and the ball hitting position of the tennis racket; the sensor element comprises an IMU (Inertial Measurement Unit) sensor, physical quantity parameters in a tennis racket batting and waving process and an acoustic sensor, and is used for analyzing batting force, batting speed and batting position; the Bluetooth communication element is used for realizing wireless communication; the energy collector is used for converting kinetic energy generated by ball hitting of the tennis racket into electric energy to supply power to the sensor component; data monitoring is carried out on the ball hitting force, the ball hitting speed and the ball hitting position, the IMU sensor, the acoustic sensor and the energy collector are used in cooperation and combined with a data fusion algorithm, the defects of a traditional single sensor are effectively overcome, the positioning and tracking precision is improved, the energy collector is used for storing and using electric energy, and the positioning and tracking precision is improved. And power consumption is reduced.

The invention provides a Bluetooth positioning method and system, a storage medium and electronic equipment, and relates to the technical field of communication. The Bluetooth positioning method comprises the following steps: acquiring first Bluetooth information, wherein the first Bluetooth information at least comprises PBR data and RSSI data; acquiring at least two pieces of second Bluetooth information, wherein each piece of second Bluetooth information comprises RSSI (Received Signal Strength Indicator) data; calculating a first target distance and a first predicted distance based on the first Bluetooth information, and calculating at least two second predicted distances based on each piece of second Bluetooth information; and determining the position of the electronic equipment based on the first target distance, the first predicted distance and the at least two second predicted distances. According to the Bluetooth positioning method provided by the embodiment of the invention, the design of combining the CS technology and the RSSI technology is used, the disadvantages of the CS technology and the RSSI technology are made up, a better positioning effect is generated compared with a positioning effect obtained by independently adopting the CS technology, high-precision positioning can be realized only by one anchor device supporting the CS technology, and the overhead of Bluetooth communication is reduced.

The embodiment of the invention relates to the technical field of ETC (Electronic Toll Collection), and discloses a digital security detection method based on OBU (On Board Unit) equipment, which comprises the following steps: starting a Bluetooth communication module in the OBU equipment to search all Bluetooth wireless signals in the current environment; and receiving all searched Bluetooth wireless signals, and matching the unique device identifier in the obtained Bluetooth wireless signals with a preset information verification list of the OBU device, if the unique device identifier is matched with the preset information verification list, the verification is passed, and if the unique device identifier is not matched with the preset information verification list, the verification fails. When the verification is passed, the OBU equipment own program sets the transaction function of the OBU to be in an available state; and when the verification is not passed, the OBU own program sets the transaction function of the OBU to be in an unavailable state. According to the method, whether the OBU equipment is in an allowed physical range or not can be quickly judged, so that the transaction function of the OBU can be controlled to be available or unavailable.

A Bluetooth communication method implemented between a first electronic device (101) and a second electronic device (102), the second electronic device (102) being capable of sending a secure message including data to be processed by the first electronic device (101). The method includes obtaining (20) at least one security key by each of the first and second electronic devices (101, 102); and transmitting (38) the secure message by the second electronic device (102) to the first electronic device (101) including establishing (44) a communication link in a Bluetooth advertising mode between these first and second devices (101, 102).

The invention relates to the technical field of near-field communication security, in particular to a hardware-level identity authentication and end-to-end encryption near-field data interaction method and system for an electric red-connected terminal, and the method comprises the steps: a first electric red-connected terminal and a second electric red-connected terminal initiate pairing based on a Bluetooth secure connection pairing protocol, and negotiate to generate a long-term key through an ECDH algorithm; performing bidirectional identity verification by adopting an application layer authentication protocol; activating AES-CCM encryption by using a session key derived from a long-term key; bluetooth signal strength and a connection state are monitored in real time, and a negotiation key is automatically paired again when abnormity occurs; generating an interaction log, digitally signing the log by using a locally stored private key, and securely storing the signed log in a local secure storage area of the terminal; the digital signature of the latest log is verified, and if interaction abnormity is found, the local security module of the terminal recovers the local data to the pre-interaction state according to the last credible log record. The problem that traditional Bluetooth communication is prone to eavesdropping and tampering can be solved.

The invention provides a Bluetooth sensor control system and a Bluetooth sensor control method, and the system comprises a plurality of Bluetooth communication nodes, each Bluetooth communication node corresponds to a group of Bluetooth sensors, each Bluetooth communication node is used for receiving Euler angle data of each Bluetooth sensor in the group corresponding to the Bluetooth communication node, the Euler angle data is used for representing attitude data detected by the Bluetooth sensor aiming at a detected object; and the main control chip is used for connecting the plurality of Bluetooth communication nodes, receiving the Euler angle data from all the Bluetooth communication nodes, sorting and packaging the Euler angle data meeting a preset condition to obtain a data frame, sending the data frame to a terminal, and analyzing the attitude change of the measured object. According to the invention, the Bluetooth communication node is triggered by the main control chip to broadcast the synchronization instruction to the sensors, so that all the sensors collect data based on the same time reference, and time alignment during motion track reconstruction is ensured.

A wireless communication tape, dispenser of the same and methods of usage of the wireless tape and the dispenser in asset tracking applications are disclosed. The wireless communication tape can be manufactured in an ultrathin form factor by laminating a stack of layers to impart functionality to the wireless communication tape. Methods of use and operation of the wireless communication tape are disclosed to save battery resources of the communication tape. The wireless communication tape may be used to form shipping labels that are thermally printed in a thermal printer and that include a 5G and Bluetooth communication capability to track a location of a package. Examples of 5G wireless protocols include the LPWAN protocols of NB-IoT and LTE-M.

The invention discloses a digital currency payment method, chip, device and system, and relates to the technical field of digital currency. A specific embodiment of the method is applied to a chip comprising a security element, a first communication component and a second communication component, the security element is used for opening a digital currency hard wallet, a communication protocol adopted by the first communication component comprises a near field communication protocol and / or a confinement communication protocol, and the second communication component is used for opening a digital currency hard wallet. A communication protocol adopted by the second communication component comprises a Bluetooth communication protocol; the method further comprises the following steps: receiving hard wallet opening data sent by the digital currency client by using the second communication component, and opening a digital currency hard wallet in the secure element; and receiving the payment request by using the first communication component, and performing the digital currency transaction. According to the embodiment, the problem of application limitation existing in near field communication payment is solved, and the application scene of near field communication payment is effectively expanded.

The present invention relates to a Bluetooth communication system and a related group of Bluetooth devices. The Bluetooth communication system includes: a Bluetooth master device; and a group of Bluetooth devices, which includes a first member device and a second member device. The first member device can transmit device information of the first member device to the Bluetooth master device. The Bluetooth master device can control a display device to display a list of candidate devices, and will display a single device option in the list of candidate devices to represent the group of Bluetooth devices, but will not simultaneously display two device options representing the first member device and the second member device in the list of candidate devices. The Bluetooth master device can, after receiving a selection instruction issued by a user, establish a connection with the first member device and perform pairing to generate a first key. The first member device can establish a connection with the Bluetooth master device and perform pairing to generate a second key corresponding to the first key.

The invention relates to a molded case circuit breaker intelligent module integrating multiple functions. The molded case circuit breaker intelligent module integrates the functions of data acquisition, remote communication, man-machine interaction, metering protection, topology identification, event recording, temperature measurement and the like. Key parameters, including voltage, current, power, power factor, power grid frequency, electric energy and the like, in a power system can be collected in real time through data collection, meanwhile, voltage and current unbalance detection and harmonic detection are achieved, and metering current and protection current can be calculated and displayed respectively. The communication module comprises serial port communication, Bluetooth communication and carrier communication, and supports multiple communication protocols. A liquid crystal display screen and keys are arranged in the aspect of man-machine interaction, a visual user interface is provided, and field operation and parameter setting are facilitated. The protection function provides a plurality of protection mechanisms, such as overload, short circuit, overvoltage, undervoltage, phase loss, zero line breaking and temperature protection, so as to prevent and reduce faults of a power system. The topology identification module can autonomously modulate and send the characteristic current and analyze the characteristic current, so that the area topology can be conveniently identified. Meanwhile, an event recording function is achieved, and opening and closing events, remote signaling displacement events and protection comprehensive events can be recorded respectively. The temperature measurement function can collect the real-time temperature of six paths of three-phase incoming lines and outgoing lines in real time, and normal operation of the temperature protection function is ensured. The modular design is adopted, shell frame circuit breakers of different current specifications are supported, plug and play is achieved, and the operation and maintenance cost is reduced.