Remote calibration system for frequency based on in-place benchmark

Hong, Xiaobin; Liu, Guixiong; Wu, Zhuokui; Du, Xiaoyong

doi:10.1007/s11465-010-0021-1

Cited by 2 publications

(2 citation statements)

References 7 publications

(7 reference statements)

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“…And the measurement results obtained by calculating the accumulated clock pulses when the gate is open. Good result of time interval measurement have a big effect to guarantee the remote calibration accuracy [30].…”

Section: Time Interval Measurementmentioning

confidence: 99%

Algorithm of Time and Frequency Remote Calibration System of SNSU-BSN

Boynawan¹,

Ratnaningsih²,

P³

et al. 2020

Eksakta

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National Measurement Standards-National Standardization Agency of Indonesia (SNSU-BSN) as the National Metrology Institute of Indonesia has provided time and frequency calibration services for customers. Time and frequency equipment should be calibrated to traceable to the SI units. The calibration process can be carried out in a calibration laboratory. However, some measuring devices cannot be sent to the calibration laboratory. One of the devices that cannot be sent to the calibration laboratory is Cesium atomic clock. It must be calibrated to get the time difference with the local coordinated universal time (UTC), namely UTC(IDN). Therefore, to calibrate the Cesium atomic clock, a remote calibration method is needed. The remote system is also intended to conduct the calibration more effectively and efficiently. This method requires two Global Positioning System (GPS) receiver devices placed on the client-side and a calibration laboratory. For this reason, an algorithm for remote calibration has been developed. The algorithm has been tested to calibrate Cesium-3 of SNSU-BSN against UTC(IDN). The time difference between Cesium-3 and UTC(IDN) was 5.8 microseconds by using the algorithm. Based on the algorithm that has been built, it was concluded that the algorithm can be used to perform remote calibration for the related customer.

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Section: Time Interval Measurementmentioning

confidence: 99%

Algorithm of Time and Frequency Remote Calibration System of SNSU-BSN

Boynawan¹,

Ratnaningsih²,

P³

et al. 2020

Eksakta

View full text Add to dashboard Cite

show abstract

“…It concerns industrial and agricultural production, national defense construction, scientific experiments, domestic and foreign trade and the health and safety of the people. With the development of measurement, computer and network technologies, remote calibration technology rises gradually and has become a research hotspot [2]. Remote calibration technology strongly extends measurement assurance program, greatly shortens calibration time, and realizes the high efficiency and low cost of calibration work.…”

Section: Introductionmentioning

confidence: 99%

TCBAC: An Access Control Model for Remote Calibration System

Zhuo-kui¹,

Liu²

2013

JSW

Self Cite

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In order to improve the reliability of remote calibration system, a task-constraint-based access control model named TCBAC is presented according to the characteristic of remote calibration system. TCBAC conducts access control according to task. It defines authorization constraints and execution constraints by the characteristics of task and the relation among tasks. Users can obtain a task authorization only when the authorization constraint is satisfied, and can execute a task only when the execution constraint is satisfied. The performance of TCBAC is analyzed by applying it to a remote calibration system and comparing it with DAC, MAC and RBAC which are commonly used access control models at present. The results show that TCBAC has the advantages of considering context and dynamics, it more fully satisfies the principle of least privilege and the principle of separation of duty and has good expansibility.

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Remote calibration system for frequency based on in-place benchmark

Cited by 2 publications

References 7 publications

Algorithm of Time and Frequency Remote Calibration System of SNSU-BSN

Algorithm of Time and Frequency Remote Calibration System of SNSU-BSN

TCBAC: An Access Control Model for Remote Calibration System

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