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Article
Publication date: 1 June 1994

Bill Greeves

Describes how radio telemetry can interface with process control systemssuch as supervisory control and data acquisition [SCADA] and distributedcontrol systems [DCS…

Abstract

Describes how radio telemetry can interface with process control systems such as supervisory control and data acquisition [SCADA] and distributed control systems [DCS] greatly increasing their power and efficiency. Outlines the basis of radio telemetry, the behaviour of electromagnetic waves, frequency and wavelengths. Uses the water industry as an example of the use of a large scale and sophisticated SCADA system to provide date collection and control links over a large area. Concludes that the versatility of radio telemetry coupled with its cost‐effectiveness means that this technology can help to expand and improve communications in an increasing number of industries.

Details

Sensor Review, vol. 14 no. 2
Type: Research Article
ISSN: 0260-2288

Keywords

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Article
Publication date: 5 January 2015

Guohua Wang, Qiang Li, Jinglin Sun and Xiaofeng Meng

The purpose of this paper is to develop the model of telemetry data processing flow (TDPF) for TDPF development and the TDPF run-time infrastructure to improve the…

Abstract

Purpose

The purpose of this paper is to develop the model of telemetry data processing flow (TDPF) for TDPF development and the TDPF run-time infrastructure to improve the spacecraft health monitoring capability.

Design/methodology/approach

This research tries to develop the TDPF by flow-based programming (FBP) method and the component-based telemetry data processing software.

Findings

The result from the case study is positive, thus reflecting the appropriateness of the suggested method.

Practical implications

Application of the proposed TDPF model and the component-based telemetry data processing software may result in improved development efficiency and less development costs.

Originality/value

This paper provides an effective way to develop TDPF without recompiling the software. It greatly facilitates the TDPF development that hopefully will save the TDPF development cost.

Details

Aircraft Engineering and Aerospace Technology: An International Journal, vol. 87 no. 1
Type: Research Article
ISSN: 0002-2667

Keywords

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Article
Publication date: 1 February 2005

Bing Long, Zhengji Song and Xingwei Jiang

To improve the speed and precise of online monitoring and diagnosis for satellite using satellite telemetry data.Design/methodology/approach – In monitoring system, a…

Abstract

Purpose

To improve the speed and precise of online monitoring and diagnosis for satellite using satellite telemetry data.Design/methodology/approach – In monitoring system, a fuzzy range which gives the probability of alarm for telemetry channels using fuzzy reasoning is outlined. A failure confidence factor is presented to modify the traditional real‐time diagnosis algorithm based on multisignal model to describe the relative failure possibility for suspected components. According to the modified real‐time diagnosis algorithm based on multisignal model, it rapidly generates the states for all the components of the system such as good, bad, suspected and unknown. Then the failure probability for suspected components is obtained by Mamdani fuzzy reasoning algorithm.Findings – The experimental results reveal that the diagnosis system can not only improve diagnosis of speed but also can improve the diagnostic precision by giving failure probability for suspected fault components which may be potential failure components.Research limitations/implications – It requires the clear fault dependency relationship between components and tests.Practical implications – A very useful method for researchers and engineers who are engaged in satellite online monitoring and diagnosis.Originality/value – This paper presents a new method combining multisignal model and fuzzy theory to give the failure probability for suspected components which improves the speed and precision for fault diagnosis.

Details

Aircraft Engineering and Aerospace Technology, vol. 77 no. 1
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 August 1987

Dynamic Logic, in cooperation with Global Cathodic protection Ltd, has applied its wide experience of telemetry techniques to the automatic monitoring of cathodic…

Abstract

Dynamic Logic, in cooperation with Global Cathodic protection Ltd, has applied its wide experience of telemetry techniques to the automatic monitoring of cathodic protection equipment.

Details

Anti-Corrosion Methods and Materials, vol. 34 no. 8
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 June 1994

N R W Long

An overview of radio telemetry, concentrating on low power,short‐range systems which can be operated without equipment licences.Describes transmission mechanisms, aerials…

Abstract

An overview of radio telemetry, concentrating on low power, short‐range systems which can be operated without equipment licences. Describes transmission mechanisms, aerials and the two main types of analogue modulation: amplitude modulation [AM] and frequency modulation [FM].Outlines the developments in radio data links and modulation schemes, the benefits of networks and the various methods of encoding data. Concludes that one of the biggest problems in radio telemetry is the different regulations across Europe making it virtually impossible to design a transmitter that is acceptable in more than one country. However, in Europe the situation is slowly changing, with new common standards for defining, evaluating and testing equipment coming into effect.

Details

Sensor Review, vol. 14 no. 2
Type: Research Article
ISSN: 0260-2288

Keywords

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Article
Publication date: 1 December 1988

Roy Marsh

TELEMETRY is the science by which a measurement of a quantity is transferred to a remote location to be recorded, displayed or used to actuate another process. It…

Abstract

TELEMETRY is the science by which a measurement of a quantity is transferred to a remote location to be recorded, displayed or used to actuate another process. It typically involves the grouping of individual data measurements in a format that can be transmitted and or stored on a single medium, retrieved from that medium and separated into the individual measurements so they are available for inspection. If there is a more complimentary role for the modern data‐recorder it would be difficult to imagine it.

Details

Aircraft Engineering and Aerospace Technology, vol. 60 no. 12
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 November 1987

T Halsey, M Brimbal and G Grottenthaler

The efficiency of range telemetry, as currently practiced, is somewhat limited by the available display technology. The manpower, space and accuracy problems associated…

Abstract

The efficiency of range telemetry, as currently practiced, is somewhat limited by the available display technology. The manpower, space and accuracy problems associated with current methods are examined, and the limitations of some new approaches are discussed The concept of Real Time Digital Strip Chart Emulation (RTDSCE), as exemplified by the ES2000 System, and the benefits inherent to such a technical approach are presented and discussed in detail These benefits include reduction of manpower and space requirements by the use of the workstation concept, the elimination of D/A conversion by direct recording of digitised signals, and the facilitation of critical realtime viewing through high resolution video monitoring.

Details

Aircraft Engineering and Aerospace Technology, vol. 59 no. 11
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 5 March 2018

Xu Kang and Dechang Pi

The purpose of this paper is to detect the occurrence of anomaly and fault in a spacecraft, investigate various tendencies of telemetry parameters and evaluate the…

Abstract

Purpose

The purpose of this paper is to detect the occurrence of anomaly and fault in a spacecraft, investigate various tendencies of telemetry parameters and evaluate the operation state of the spacecraft to monitor the health of the spacecraft.

Design/methodology/approach

This paper proposes a data-driven method (empirical mode decomposition-sample entropy-principal component analysis [EMD-SE-PCA]) for monitoring the health of the spacecraft, where EMD is used to decompose telemetry data and obtain the trend items, SE is utilised to calculate the sample entropies of trend items and extract the characteristic data and squared prediction error and statistic contribution rate are analysed using PCA to monitor the health of the spacecraft.

Findings

Experimental results indicate that the EMD-SE-PCA method could detect characteristic parameters that appear abnormally before the anomaly or fault occurring, could provide an abnormal early warning time before anomaly or fault appearing and summarise the contribution of each parameter more accurately than other fault detection methods.

Practical implications

The proposed EMD-SE-PCA method has high level of accuracy and efficiency. It can be used in monitoring the health of a spacecraft, detecting the anomaly and fault, avoiding them timely and efficiently. Also, the EMD-SE-PCA method could be further applied for monitoring the health of other equipment (e.g. attitude control and orbit control system) in spacecraft and satellites.

Originality/value

The paper provides a data-driven method EMD-SE-PCA to be applied in the field of practical health monitoring, which could discover the occurrence of anomaly or fault timely and efficiently and is very useful for spacecraft health diagnosis.

Details

Aircraft Engineering and Aerospace Technology, vol. 90 no. 2
Type: Research Article
ISSN: 1748-8842

Keywords

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Article
Publication date: 1 June 1975

D. Batten and BEng

Flight testing of modern high performance aircraft has generated an increasingly complex data handling workload and this contributes significantly to the duration and cost…

Abstract

Flight testing of modern high performance aircraft has generated an increasingly complex data handling workload and this contributes significantly to the duration and cost of flight test programmes. Automation of this critical data handling process can reduce the high cost of such a programme by reducing its duration. The effects of automation of data flow at the ground station can be enhanced by the use of immediate flight analysis of data telemetered from the aircraft.

Details

Aircraft Engineering and Aerospace Technology, vol. 47 no. 6
Type: Research Article
ISSN: 0002-2667

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Book part
Publication date: 18 December 2007

Bernard J. Mohr, Michael J. Feinson and Nancy Shendell-Falik

The high-risk/high-stress nature of hospital emergency departments has made handoffs (i.e. patient transfers across organizational units) an area of significant safety…

Abstract

The high-risk/high-stress nature of hospital emergency departments has made handoffs (i.e. patient transfers across organizational units) an area of significant safety consequence, as evidenced by numerous studies and 2006 Comprehensive Accreditation Manual for Hospitals: The Official Handbook (CAMH). Joint Commission Resources, Inc.: Author; 2005. This same high-risk/high-stress environment is known for generating resistance to traditional deficit-based, external expert driven approaches to improvement. The authors describe how one hospital overcame this resistance by using an Appreciative Inquiry approach to the redesign of the information flow and organizational roles within a mission-critical area of the hospital. Rather than designing to ameliorate the root causes of ineffective handoffs, this positive lens approach (Appreciative Inquiry) was used to engage staff in identifying and expanding upon their most effective handoff experiences. Implications for shifting from problem-based design to a positive lens approach in the creation of micro-information systems and new organizational processes are discussed.

Details

Designing Information and Organizations with a Positive Lens
Type: Book
ISBN: 978-1-84950-398-3

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