传感器失效管理是传感器管理系统中的一个重要部分,也是当前研究的热点。
The sensor failure management is one of the important tasks of the sensor management system, which is under hot discussion.
根据广义系统的分离定理,当传感器失效,利用调整观测器增益阵参数的办法来实现容错。
Based on separation theory for descriptor systems, control systems can tolerate sensor failure by adjusting the parameters of observer gain matrix.
对具有不确定参数的连续控制系统,针对传感器失效,研究了鲁棒容错控制器的设计问题。
A design method of robust fault tolerance for uncertain linear systems with sensor failures is discussed in this paper.
针对状态反馈控制系统传感器失效故障模型,提出了基于系统稳定性设计的控制器重构新方法。
Aiming at fault model of sensors failure with state feedback control system, a new method of controller reconfiguration with system stability is proposed.
结果表明,该控制策略可以满足有单个传感器失效的故障系统容错控制要求,具有更强的适应性。
The result shows that the algorithm, which has better adaptability, can fulfill the demand of fault tolerant control in fault system with single sensor failure.
实测表明,采用这种方法可以提高温度采集的精度,同时有效地解决了由于传感器失效引起的误差和单点采集温度的不足。
On the basis of multi-sensor collecting data, we adopt distribution diagram method to wiping off the careless error at the same time.
该仪器为机电一体化产品,采用可编程序控制器控制,利用传感器判别被检部件是否失效及寿命长短。
This instrument is an electromechanical product, the programmable logic controller (PLC) is used for the control, and sensors are used for measuring the useful life of the parts detected.
由于低功耗无线通信不确定性、链路质量不稳定性以及节点失效等问题,传感器网络很容易导致路由数据包丢失。
But the link quality of WSN is unstable and the network easily has nodes failures, so the data loss is an open problem in wireless sensor network.
采用本发明能有效检测出传感器是否失效。
The invention can effectively detect the invalidation of the sensor.
通过失效形式,分析了半导体P-N结温度传感器的失效机理,介绍了为降低内应力而进行的设计和工艺改进。
This paper analyzes the failure mechanism of semiconductor P N junction temperature sensors and presents a new design to reduce the internal stresses and methods to improve the processes.
除了别的方面而外,它们还被用于监视传感器的失效。aNN系统的一个内在特点是其自身的学习能力,所以它们的性能将不断改进。
They could also be used, amongst other things, to detect sensor failure. an inherent characteristic of aNNs is their ability to learn and so their performance should improve with time.
与传统的报警系统相比,该系统具有成本低、功能全、早期发现、准确度高、适用范围广,并且在传感器系统局部失效的情况下也能得出正确的判断等优点。因此更安全、更合理。
This system has the low cost, multiple functions, early staged detection, high accuracy, extensive application and can make the correct decision under the case of local link failures.
为了有效地提高电化学式氧传感器的可靠性,采用失效判据的方法,试验研究了其寿命特征,失效规律及改进措施.。
To improve electro-chemical Oxygen sensor's reliability, its life-feature test, failure principle and improvement method were researched.
结合实验数据,确定了传感器的主要失效应力及失效表现形式,并进一步对传感器的可靠性进行了评估。
Combined with experimental data, the main failure reason and its representation mode is confirmed. Furthermore, the reliability of the sensor is estimated.
由于无线传感器网络被部署的环境恶劣,节点很容易受到各种针对定位系统的攻击,从而导致定位失效。
The invalid and erroneous node localization can have a destructive impact to WSN application, which can lead to false supervision results, crack down of network etc.
针对石英谐振式称重传感器的结构特点,对导致传感器产生失效的机理进行了分析。
Based upon the structure of a quartz resonant weighing sensor, failure mechanism is analyzed.
与湿敏传感器的湿度计相比,由于不存在表面污染失效的情况,所以解决了传感器使用寿命短的问题。
Compared with the prior hygrometer with a moisture sensitive sensor, the invention solves the problem of short service life of the sensor as no failure resulting from the surface contamination occurs.
浓度传感器、手动关断系统和防火系统失效率比先验失效率低。
The failure rates of the alarming system, automatic shutdown system and fire fighting system began to work more efficiently than before, that is to say, getting lower than before.
考虑到最优反馈控制在部分执行器(传感器)失效时仍能使系统稳定运行的条件,给出了求解该问题的算法,并用实例作了说明。
The effectiveness of this method is proved by simulation results for an anti interference optimal control problem of airborne obstacle avoidance system.
考虑到最优反馈控制在部分执行器(传感器)失效时仍能使系统稳定运行的条件,给出了求解该问题的算法,并用实例作了说明。
The effectiveness of this method is proved by simulation results for an anti interference optimal control problem of airborne obstacle avoidance system.
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