40results about How to "Guarantee perception" patented technology

The invention provides a bandwidth allocation device and method. The bandwidth allocation device is used for service communication between UE and a network and comprises a wireless internet access module, a wireless communication module, a service recognition module, a bandwidth allocation module, a safe module and a data route module. By the adoption of the modules, the bandwidth allocation device can recognize service types corresponding to service data flow, allocates corresponding transmission bandwidth for the service data flow according to the service types, realizes automatic adjustments of the transmission bandwidth according to the service types, enables the transmission bandwidth to meet the requirements of current interacting services, and ensures user perception. At bandwidth allocation time, the service recognition module and the bandwidth allocation module are used for deciding, so that coupling between logic modules is reduced, and the flexibility of deployment is improved. Meanwhile, at bandwidth allocation time, different strategies can be adopted for the service recognition module, the bandwidth allocation module and the safety module according to different service types, so that adaptability and flexibility are improved, and service QoS is improved.

The invention provides a circuit switched fallback (CSFB) method, a base station and a terminal. A delay decision timer is added on a base station side, and the base station starts the delay decisiontimer when a first measurement report is received and acquires an inter-system frequency point with the highest signal strength and transmits the inter-system frequency point with the highest signal strength to the terminal after timing of the delay decision timer arrives at preset time, so that the terminal falls back to the inter-system frequency point with the highest signal strength to initiate a voice service request; the success rate of CSFB is increased; a fallback instruction is transmitted to the terminal not only according to the first measurement report; the randomness in selectinga first inter-system frequency point when the terminal measures the signal strength is avoided; fallback failure of the terminal caused by fallback through an inter-system frequency point with a relatively weak signal is avoided; CSFB call delay is not increased excessively; and user perception is ensured.

The present invention provides a radar performance monitoring method, device and storage medium, wherein the method includes: determining the measured distance value and signal-to-noise ratio corresponding to each target point according to the echo signal of the current frame, and based on all the measured distances value and signal-to-noise ratio to estimate the fusion inferred distance corresponding to the current frame, wherein the fusion inferred distance indicates the estimated maximum detection distance of the radar; filter the fusion inferred distance corresponding to the current frame to obtain the current frame Corresponding decision decision value; comparing the decision decision value corresponding to the current frame with at least one preset threshold to determine the current working state of the radar. The technical solution provided by the embodiment of the present invention can realize real-time self-detection of radar occlusion performance and determine the current working state of the radar, and the method has strong robustness and can respond to the degradation of radar performance caused by bad weather or environmental factors , which effectively ensures the perception ability of the vehicle radar to the environment.

The invention discloses a panoramic wave recording method and platform system capable of supporting the fault diagnosis and analysis of a power grid and belongs to the power system and automation field. The platform system of the invention comprises a three-layer structure which comprises an acquisition area, a regional station area and a master station area. According to the panoramic wave recording method, after a fault occurs on the power grid, fault acquisition terminals can be started through a plurality of means to perform multi-data type fault recording; the fault acquisition terminals indirectly upload fault information to a panoramic wave recording platform regional master station; the panoramic wave recording platform regional master station performs full-grid wave recording cooperative control; and after completing data recording, the fault acquisition terminals transmit fault wave recording files to the panoramic wave recording platform regional master station through a data transmission network; and the panoramic wave recording platform regional master station receives the fault wave recording files of all the fault acquisition terminals and then performs synchronization processing on fault data according to high-precision time scales. With the panoramic wave recording method and platform system capable of supporting the fault diagnosis and analysis of the power grid of the invention adopted, powerful data support can be provided for the automatic control of the power grid.

The invention belongs to the aircraft avionics system technology and relates to a health monitoring system of avionic electronic equipment based on an ARINC653 standard. The health monitoring system adopts a mode of input step by step, diagnostic decision and stage treatment to process anomalous events, performs comprehensive diagnosis from a software task stage to an operation system and from an avionic electronic equipment layer to a full-aircraft system, and adopts a classification layered mode to assign fault events to processing steps of different stages according to a health monitoring stage, and processing permissions are enlarged step by step according to the health monitoring stage. By means of the mode of the stage treatment and report stage by stage, airborne health management of an aircraft is effectively achieved. Safety of fault processing is ensured through the processing permissions of different stages, and processing efficiency on the system fault events and sensing of the aircraft on the health states are improved by reporting the events stage by stage. Therefore, fault diagnosis recovery capability of the aircraft is effectively improved, and testability and safety of the aircraft are strengthened.

The application discloses a terminal UE access control method. After determining the terminal protocol version of terminal UE according to an access request sent by the terminal UE, an RNC (Radio Network Controller) judges whether the terminal protocol version is higher than the highest protocol version supported. If the terminal protocol version is higher than the highest protocol version supported, the UE is redirected under instruction according to the LTE capacity of the UE, the reason why the access request is triggered, a blind redirection switch and the neighborhood of a cell which the UE requests to access, or the access request is processed in accordance with the highest protocol version. The success rate of RRC access and the success rate of relocation are improved, user perception is ensured, and the investment of operators is protected.

The present invention proposes a reliable evaluation criterion-based robust cooperative spectrum sensing method. According to the method, channel access feedback and full-time slot sensing are introduced to establish a reliable evaluation standard; based on the evaluation standard, the idle probability and occupation probability of an authorized channel and the detection probability and false alarm probability of a sensing node are calculated according to data in first N time slots; and local judgment results reported by the sensing node at the current time slot are fused according to the above calculation results, so that global judgment is performed. The method of the invention has high robustness and can maintain good performance under a large number of malicious users.

The invention discloses a method and system for transmitting services between an RRU and BBUs, and the BBUs, and relates to the technical field of communication. The technical problem that in the prior art, protection is lacking in service transmission between the RRU and the BBUs is solved. The method includes the steps that firstly, the RRU has access to the BBU 1 and the BBU 2; secondly, the BBU 1 detects whether faults happen to a light path 1 between the BBU 1 and the RRU or not in real time, and the BBU 2 detects whether faults happen to a light path 2 between the BBU 2 and the RRU or not in real time, wherein service data are transmitted through the light path 1 between the BBU 1 and the RRU; thirdly, when the BBU 1 detects that faults happen to the light path 1 for transmitting the service data between the BBU 1 and the RRU, the BBU 2 is informed to take over all the service data; fourthly, the BBU 2 starts to use the light path 2 between the BBU 2 and the RRU to transmit the service data to the RRU.