13 results about "Remote diagnostics" patented technology

This invention discloses a method for recording the power-down and reset paths of an embedded controller, the embedded controller itself, and a vehicle. The method includes: when the embedded controller executes any preset power-down or reset procedure, before the procedure ends, writing a path identifier representing the procedure into the non-volatile memory area of ​​the embedded controller; after the embedded controller is powered on, reading the stored path identifier from the non-volatile memory area and assigning it a path flag; immediately writing a preset diagnostic flag into the non-volatile memory area to overwrite the path identifier; determining the state of the previous power-down or reset based on the value of the path flag and setting a corresponding fault flag; and outputting the path flag and the fault flag. This invention enables accurate recording of each power-down / reset path and reliable judgment of abnormal power failures, significantly improving system reliability and maintainability, and providing support for remote diagnostics and big data analysis, without incurring additional hardware costs.

This application provides an interrupt handling method for an in-vehicle system, a vehicle, and a computer-readable storage medium. The method involves obtaining the current interrupt frequency of the in-vehicle system; determining the risk level of the current interrupt frequency based on the current interrupt frequency and a preset interrupt frequency set; and controlling the in-vehicle system based on the risk level and the current interrupt frequency. Therefore, this application's in-vehicle system can accurately identify the risk level and execute flexible suppression and recovery strategies in advance before high-frequency interrupt triggering exhausts computing resources. This avoids vehicle function interruptions and remote diagnostic failures caused by traditional watchdog resets, ensuring the continuous, traceable, and zero-reset operation of the in-vehicle electronic control unit's safety-critical tasks.

This invention discloses a distributed CAN data remote acquisition and monitoring system and method, including an acquisition-end device, a cloud server, and a client device. The acquisition-end device has a built-in unique hardware identifier, encapsulates CAN data frames using a 10-byte fixed header protocol, and encodes the channel identifier in the high 8 bits of the CAN identifier, achieving single-link multi-channel transmission. Before establishing a TCP connection, the acquisition-end device actively triggers an ARP request, employing a three-retry connection establishment method with a 3-second interval between each retry to solve the ARP resolution failure problem in direct connection scenarios. The cloud server establishes a long TCP connection with the acquisition-end device, receives the encapsulated data, performs device authentication, and forwards the data. The client device connects to the cloud server via WebSocket to monitor CAN data in real time. This invention achieves remote centralized monitoring of CAN devices, hardware anti-cloning, multi-channel single-link transmission, automatic reconnection after disconnection, and is compatible with existing CAN analysis software. It is suitable for scenarios such as remote vehicle diagnostics, charging pile monitoring, and BMS data acquisition.

This invention relates to the field of underground pipeline monitoring technology in coal mines, specifically a remote diagnostic system for the pressure and status of ventilation and water pipelines. The system includes a sensor array, pipeline control valves, a historical database, and an industrial control processor. The industrial control processor is configured to perform the following steps: receive pipe wall vibration time-series signals synchronously acquired by the sensor array; calculate an acoustic impedance distortion metric value characterizing the degree of physical deformation of the ventilation and water pipeline; compare the acoustic impedance distortion metric value with a preset safety threshold; when the acoustic impedance distortion metric value is greater than the safety threshold, send an emergency cut-off command to the pipeline control valve configured on the ventilation and water pipeline; when the acoustic impedance distortion metric value is less than or equal to the safety threshold, store the current passive reflection component as normal state reference data in the historical database. This invention solves the problem of difficulty in early warning of pipelines operating under hidden damage conditions under roadway rheological stress.

1. Name of the product in this design: Remote Diagnostic Device. 2. Purpose of this design: To remotely read data from the vehicle's OBD remote interface, avoiding the need for maintenance personnel to perform diagnostic work in the confined space of the vehicle. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This application relates to the field of data transmission technology, and in particular to a remote diagnostic data transmission method, an on-board diagnostic terminal, and a medium. The method includes: using the User Datagram Protocol (UDP) to establish a point-to-point connection between the on-board diagnostic terminal and a diagnostic service provider; using the Transmission Control Protocol (TCP) to establish a stable transmission connection between the on-board diagnostic terminal and the diagnostic service provider; using the point-to-point connection to transmit diagnostic service data frames from the on-board diagnostic terminal to the diagnostic service provider; and controlling the on-board diagnostic terminal to receive control signaling sent by the diagnostic service provider using the stable transmission connection. This application can effectively solve the problem of unstable retransmission mechanisms caused by the inherent unreliability of the UDP protocol in P2P remote diagnostic scenarios.

To provide a remote diagnostic system, a remote diagnostic method, and a program which remotely diagnose a state of a vehicle so as to be able to execute notification about a failure with high urgency of maintenance.SOLUTION: A remote diagnostic system 1 for remotely diagnosing a state of a vehicle 20 includes a failure diagnostic section for diagnosing the state of the vehicle 20 on the basis of a failure code acquired from the vehicle 20 and filtering data comprising live data detected by sensors 23 to 27 provided to the vehicle 20 and each evaluation value predetermined according to contents of a failure, so as to notify predetermined computers of diagnostic result of the state of the vehicle 20.SELECTED DRAWING: Figure 1

This invention provides a remote diagnostic system, method, and program that suppress unnecessary diagnostic processing in an image forming apparatus. [Solution] In a remote diagnostic system in which an image forming apparatus, a remote control instruction server, and a remote repair management server are connected by a network, the image forming apparatus has a history management unit that records the history of jobs performed in the image forming apparatus, a diagnostic unit that diagnoses the cause of job failures, and a diagnostic result management unit that stores the diagnostic results of the diagnostic unit. The remote control instruction server has an instruction management unit that instructs the image forming apparatus to perform a diagnosis using the diagnostic means. When the diagnostic unit receives an instruction from the instruction management unit to perform a diagnosis, if the diagnostic result for the latest job history is stored in the diagnostic result management unit, it returns the stored diagnostic result to the remote control instruction server, and if it is not stored, the diagnostic unit performs a diagnosis of the cause and returns the diagnostic result to the remote control instruction server.

Systems and methods for remote diagnostics and therapies are disclosed. A remote technician or automated computer system, optionally using artificial intelligence algorithms, can communicate with and control home diagnostic and therapeutic devices such as ultrasound imaging devices avoiding the need for patient travel and costly hospital visits. Devices can be delivered via standard courier services or other mechanisms such as drones or self-driving delivery vehicles. Once delivered a remote diagnostic and / or therapy session can be completed using a wired or wireless communications network. Portions of the devices can then be disposed of or returned for redistribution. Devices may include security measures such as user lockouts after authorized use is complete and / or self-destruction mechanisms to prevent tampering or unauthorized use of expensive or proprietary components.

This invention provides a vehicle remote diagnostic method, belonging to the field of automotive remote diagnostic technology. The method includes: configuring a vehicle remote diagnostic association database, which at least contains basic vehicle data, component diagnostic specifications, diagnostic process scripts, and diagnostic strategies; responding to an instruction to create diagnostic tasks for multiple target vehicles, automatically generating a diagnostic task package for each target vehicle based on the association database; and responding to a diagnostic task package detection request sent after vehicle startup, sending the corresponding diagnostic task package to the vehicle terminal based on the vehicle identification number in the diagnostic task package detection request for the vehicle terminal to execute the diagnostic process within the diagnostic task package. This invention proposes an adaptive dynamic configuration solution based on a remote diagnostic cloud platform, enabling batch remote fault diagnosis of vehicles of multiple brands, series, and models, effectively improving the efficiency of vehicle remote diagnostics.

A dual-circuit hydraulic system and its control method for an underground lithium battery mining vehicle are disclosed. The system includes a hydraulic tank, an electric pump, a filling valve, an accumulator, a dual-path foot brake valve, an electro-proportional pressure reducing valve, and a vehicle controller (VCU). The electric pump fills the accumulator via the filling valve. The accumulator is connected to both the electro-proportional pressure reducing valve and the dual-path foot brake valve. The output port of the electro-proportional pressure reducing valve is connected to the pilot control port of the dual-path foot brake valve. The VCU drives the electro-proportional pressure reducing valve based on the brake pedal travel signal, achieving stepless linear adjustment of the braking pressure. This invention employs a dual-redundant hydraulic circuit to ensure basic safety, achieves smooth and precise linear control braking through electro-proportional control, and integrates sensors for pressure and temperature monitoring and remote diagnostics. The parking brake also features an automatic parking function.

This invention discloses a remote debugging method based on Bluetooth communication, including device initialization and pairing, communication module initialization, Bluetooth data link establishment, and remote command transmission. The debugging device sends debugging commands to the target device via dedicated debugging software. Upon receiving the commands, the target device executes the corresponding operations and sends the execution results back to the debugging device via Bluetooth as feedback data. After debugging is complete, the debugging device sends a disconnect command via Bluetooth, and the Bluetooth connection is securely closed. To address potential communication anomalies, command loss, or response timeouts during debugging, the system incorporates automatic retransmission, timeout detection, and error correction mechanisms. This method enables remote wireless debugging of target devices such as embedded systems and smart devices, and is particularly beneficial for remote diagnostics and maintenance after on-site deployment, significantly improving debugging efficiency and reducing maintenance costs.

This invention relates to the field of intelligent control technology for water conservancy and hydropower engineering facilities and fluid transmission, specifically a remote diagnostic control system and method for hydraulic gate hoists. The system includes: constructing a deep reinforcement learning model based on physical information; initializing the system's safe operation boundary parameters and task urgency parameters; and triggering an adaptive diagnostic control process in response to a received remote flood discharge command, including: constructing a standardized temporal state tensor; extracting internal damage feature vectors representing the state of hydraulic components; determining the current system's functional remaining life entropy through microscopic fatigue damage accumulation calculation; generating a survival-priority control trajectory; and outputting the drive control signal of the hydraulic actuator through multimodal actuator adjustment. This invention avoids diagnostic model input distortion caused by data loss or communication interruption, ensuring the continuity and reliability of the diagnostic system under extreme environments.