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260 results about "Location status" patented technology

Crash classification method and apparatus using multiple point crash sensing

An improved method of using multiple point crash sensing and multiple sensor occupant position sensing for classifying a crash event and determining which restraints should be deployed. A central controller collects crash data from multiple crash sensors and combines severity characterization data from each of the multiple sensors to construct a characterization table or matrix for the entire system. Each possible crash event classification is represented by a characterization value mask, and the various masks are sequentially applied to the system characterization table until a match is found, with a match identifying the appropriate crash event classification. The classification decision, in turn, is used to determine which, if any, of the restraint devices should be deployed based upon the crash severity. Similarly, the controller collects data from various occupant position sensors to construct a characterization table or matrix for the occupant position detection system. Each possible occupant position sensor classification is represented by a characterization value mask, and various masks are sequentially applied to the table until a match is found, with a match identifying the appropriate occupant position status. The occupant position status, in turn, is used to determine which, if any, of the restraints may be deployed. The system also includes a centrally located crash sensor, and the controller constructs an intrusion table based on differences between the remote and central sensors. The intrusion classification is determined and combined with the crash classification and occupant position status to determine which restraints should ultimately be deployed.
Owner:APTIV TECH LTD

Multi-agent formation tracking control method and system

The invention discloses a multi-agent formation tracking control method and system. The method comprises the steps that the position of each agent is obtained; according to the position of each agent,the position status of a navigator, the position statuses of followers and the position status of each follower relative to the navigator are determined, thereby obtaining an agent formation; an augmented object is introduced, and a fault and saturation model of the agent formation is established; the status of the navigator is taken as reference to determine an objective function of time-varyingformation tracking based on the fault and saturation model; an adaptive fault-tolerant control law under saturation constraints is established by using an output signal of a first-order filter and anoutput signal of the augmented object, a parameter of the control law is determined, and an adaptive fault-tolerant and anti-saturation control law is obtained; the objective function is taken as a control target, and each agent is controlled according to the adaptive fault-tolerant and anti-saturation control law. The multi-agent formation tracking control method and system have the advantages that the convergence of the multi-agent formation tracking error is ensured, and even if in the case of the fault, a control signal is within the saturation boundary of an actuator.
Owner:BEIHANG UNIV

Application program control method and device based on mobile terminal and mobile terminal

The invention provides an application program control method and a device based on a mobile terminal and the mobile terminal. The problem that the operation of a prior technical control application program is complex is solved. The method comprises that an included angle which is formed between gravitational acceleration of the mobile terminal and a longitudinal coordinate axis in a accelerometer of the mobile terminal is detected; a current position of the mobile terminal under gravity induction is determined through the included angle; when the current position meets a preset state control requirement for starting of the application program, a starting command is sent to a corresponding application program, and the application program is started and executed; and when the current position meets a preset state control requirement for closing of the application program, a closing command is sent to a corresponding application program which is being executed, and the application program is closed. Whether a position state belongs to the position state for control of a preset corresponding application program is determined through detection, the application program is controlled through the position state, and operation steps in which the corresponding application program is controlled are simplified.
Owner:XIAOMI INC

Combined DOA and TOA single-station passive positioning method based on error correction

The invention discloses a combined DOA and TOA single-station passive positioning method based on error correction. According to measurement information obtained by a receiving station of an externalradiation source radar system, by introducing an auxiliary variable, a nonlinear equation is converted into a pseudo-linear equation, a pseudo-linear model between the state of a target position and the state of an observation station position is established, an iterative least square method is adopted for estimation, a constrained total least square estimation model is constructed, a constrainedoptimization problem is converted into an unconstrained optimization problem, a Newton iteration method is used for optimization and solution, and the correlation between the auxiliary variable and the target position is used for constructing a correlation least square estimation model, so that the target positioning performance is further improved. The target positioning accuracy is improved through combined estimation of the target position and system errors. Convenience is provided for improving the target positioning performance, the complexity of error registration under the premise of ensuring the estimation performance is reduced, and good positioning performance in the case of large measurement noise is achieved.
Owner:HANGZHOU DIANZI UNIV

Method and system for controlling plurality of mobile robots to operate in parallel manner

The invention discloses a method and system for controlling a plurality of mobile robots to operate in a parallel manner and belongs to the technical field of automation and intelligentization of a warehousing system. The control method comprise the following steps: carrying tasks are distributed via a control end, path planning operation is performed for the mobile robots to which the tasks are distributed, path planning results are sent to the mobile robots, real time position state information is reported by the mobile robots, the position state information reported by all the mobile robotsis processed comprehensively via the control end, possible conflict conditions are determined, conflict evasion information is generated in real time and sent to the mobile robot, and the mobile robots evade each other in real time during operation according to the evasion information till terminal points are reached. The control system comprises a task assigning module, a path planning module, aconflict coordination module, a message communication module, a processor and a storage device. Via the method and system disclosed in the invention, stateful interaction between the mobile robots and the control system is prevented as much as possible, message communication traffic is effectively reduced, and overall operation efficiency of the system is improved.
Owner:TSINGHUA UNIV
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