Showing papers on "Sensor hub published in 2019"

Method and apparatus for generation of a time-based one-time password for session encryption of sensor data gathered in low-performance and IOT environments

Abstract: A system for a time-based one-time password security system operating at a provisioning server may comprise transmitting one or more first locally generated random-string numbers for generation of a first time-based one-time password to a remotely connected internet of things sensor and a remotely connected internet of things sensor hub. The system may also comprise executing code instructions to associate the internet of things sensor with a first client key in a table stored in a memory operatively connected to the processor, associate the internet of things sensor hub with a second client key in the table, and associate the internet of things sensor and internet of things sensor hub with the one or more first locally generated random-string numbers in the table. Further the first remotely generated random-string numbers may identify a first preset function for generation of a first session key used in encrypting and decrypting sensor data records.

Methods for data synchronization between a sensor hub and an application processor and apparatuses using the same

Abstract: The invention introduces a method for data synchronization between a sensor hub and an application processor, which contains at least the following steps: generating and adding a plurality of absolute time stamps in a sensor-data stream; and generating and adding a plurality of pieces of sensor data and a plurality of relative time stamps in the sensor-data stream between the moments of generating each two adjacent absolute time stamps, wherein each relative time stamp is associated with one piece of sensor data.

A VLSI Design of Real-Time Sensor Fusion Unit using Kalman Filters

Abstract: As the functions of mobile smart devices are diversified with the increase of sensor types, the importance of sensor hubs for sensor data processing is also increasing. One possible application of the mobile sensor hub is to calculate the orientation of the sensor. In this paper, we design the sensor fusion structure as VLSI circuit that can be implemented as a co-processing unit which identifying device orientation using 9axis IMU sensor and Kalman filters. The simulation reported an average error of about 2.27°. The proposed design is fully verified and evaluated through simulation tools for Artix-7 FPGA and 32 nm CMOS standard logic cell library. The average power dissipations of FPGA and 32 nm standard cell technologies were estimated as 7 mW and 0.89 mW, respectively. Also, the gate counts for standard cells are reported as $\sim$ 45,000 in total. The sophisticated design is applicable to the digital IP core for mobile sensor hub architecture.

Leach based routing protocol in wireless sensor networks

Abstract: The main purpose of wireless sensor networks to manage conventional systems is to adjust the vitality of systems and extend the entire life of the system. The wireless sensor networks have limited energy to micro sensor nodes. When such nodes lose their force absolutely, verbal altercation stops. Wireless sensor networks have the least effort and mandatory sensor hubs with a large degree of control. A sensor hub detects information in numerous applications on wireless sensor networks and transmits it to the sink through solitary or multi-jump routes. A hierarchal-based routing protocol is mainly used in the field of energy consumption. LEACH is also clustering based routing protocol. The main aim of this research is to create a number of rules to offer better and reliable network services for wireless sensors through stable networks with nodes with long service life. Reliable is a durable and better performance platform. In this paper, we are implementing a new algorithm based on soft and hard thresholding for 2-tier cluster head formation. First, the energy efficient routing protocol is studied and analyzed. Then we use new thresholding technology algorithms. It will help in improving the network life time. And also works on alive nodes, throughput etc.

Servo system, sensor hub and diagnostic method for industrial device

Abstract: The purpose of the present invention is to provide a servo system which can handle various kinds of sensors having different specifications. The present invention is provided with: an encoder which detects a rotation of a motor; a sensor which detects a state different from the rotation; and a sensor hub which is connected to each servo amplifier that drives and controls the motor, wherein the sensor hub is detachably connected with the encoder. The sensor hub performs signal processings on an encoder signal output from an encoder and a sensor signal output from the sensors, and transmits the processed signals to the servo amplifier.

Lifetime Enhancement Using Sleep Switch Over In Wireless Sensor Networks

Abstract: Expanding the endurance of the system and using the equity to its greatest utmost is the serious issue in Wireless Sensor Network (WSN). The remote sensor hubs in sensor establish are fueled utilizing battery-mechanized batteries. Nonetheless, giving vitality to hubs in the inaccessible condition is a noteworthy issue in WSN. Consequently WSN needs another vitality effective calculation to upgrade the system existence. In a sensor hub, the sending and accepting module expends more vitality when contrasted with different modules. In this paper, a Battery Restoration based Lifetime Endurance (BRLE) calculation is talked about, which considers battery voltage bend for planning the sending and receiving module of the sensor hubs.The Markov display assist in deciding the condition of the sensor hub as Cluster head and Cluster Member dependent on battery recuperation process. By booking the sending and receiving module dependent on the battery terminal voltage, recuperation factor and separation between the hubs, the lifetime of the system is upgraded.Trial execution demonstrate that the calculation beats the others by expanded lifetime and expanded throughput. The BRLE diminishes the difficulty and vitality gap issue, keeping away from misfortune in network with the sink.

Sensor hub switches

Abstract: Sensor hub switches are described herein. In one example, a device can include a sensor hub moveable between a first position and a second position and a power switch to be deactivated by the sensor hub when the sensor hub is at the second position.

Sensor hub and memory system with reduced page swapping overhead

Abstract: A sensor hub method to oversee operations of a plurality of sensors is described that includes swapping a higher priority page having higher priority code and/or data of the program code out of an embedded memory that the sensor hub operates out of after the higher priority page has remained idle in the embedded memory for a first period of time. The method also includes swapping a lower priority page comprising lower priority code and/or data of the program code out of the embedded memory after the lower priority page has remained idle in the embedded memory for a second period of time that is shorter than the first period of time.

An apparatus for facilitating a connection with an external sensor module

Abstract: Embodiments of the present disclosure provide for an apparatus for facilitating a connection with an external sensor module, in accordance with some embodiments In one instance, the apparatus may include a processor and a sensor hub coupled with the processor, wherein the sensor hub may include a bus to provide a connection between the apparatus and the external sensor module The apparatus may further include signal pattern generation circuitry coupled with the sensor hub to generate a signal pattern in response to a connection of the external sensor module to the apparatus via the bus or disconnect of the external sensor module from the bus, to indicate an insert or remove event to the apparatus, and facilitate the connection of the apparatus with the external sensor module Other embodiments may be described and/or claimed