A low-cost remote sensing system for agricultural applications

This research develops a low cost remote sensing system for use in agricultural applications. The important features of the system are that it monitors the near infrared and it incorporates position and attitude measuring equipment allowing for geo-rectified images to be produced without the use of ground control points. The equipment is designed to be hand held and hence requires no structural modification to the aircraft. The portable remote sensing system consists of an inertia measurement unit (IMU), which is accelerometer based, a low-cost GPS device and a small format false colour composite digital camera. The total cost of producing such a system is below GBP 3000, which is far cheaper than equivalent existing systems. The design of the portable remote sensing device has eliminated bore sight misalignment errors from the direct geo-referencing process. A new processing technique has been introduced for the data obtained from these low-cost devices, and it is found that using this technique the image can be matched (overlaid) onto Ordnance Survey Master Maps at an accuracy compatible with precision agriculture requirements. The direct geo-referencing has also been improved by introducing an algorithm capable of correcting oblique images directly. This algorithm alters the pixels value, hence it is advised that image analysis is performed before image georectification. The drawback of this research is that the low-cost GPS device experienced bad checksum errors, which resulted in missing data. The Wide Area Augmented System (WAAS) correction could not be employed because the satellites could not be locked onto whilst flying. The best GPS data were obtained from the Garmin eTrex (15 m kinematic and 2 m static) instruments which have a highsensitivity receiver with good lock on capability. The limitation of this GPS device is the inability to effectively receive the P-Code wavelength, which is needed to gain the best accuracy when undertaking differential GPS processing. Pairing the carrier phase L1 with the pseudorange C/A-Code received, in order to determine the image coordinates by the differential technique, is still under investigation. To improve the position accuracy, it is recommended that a GPS base station should be established near the survey area, instead of using a permanent GPS base station established by the Ordnance Survey

A low-cost remote sensing system for agricultural applications

This research develops a low cost remote sensing system for use in agricultural applications. The important features of the system are that it monitors the near infrared and it incorporates position and attitude measuring equipment allowing for geo-rectified images to be produced without the use of ground control points. The equipment is designed to be hand held and hence requires no structural modification to the aircraft. The portable remote sensing system consists of an inertia measurement unit (IMU), which is accelerometer based, a low-cost GPS device and a small format false colour composite digital camera. The total cost of producing such a system is below GBP 3000, which is far cheaper than equivalent existing systems. The design of the portable remote sensing device has eliminated bore sight misalignment errors from the direct geo-referencing process. A new processing technique has been introduced for the data obtained from these low-cost devices, and it is found that using this technique the image can be matched (overlaid) onto Ordnance Survey Master Maps at an accuracy compatible with precision agriculture requirements. The direct geo-referencing has also been improved by introducing an algorithm capable of correcting oblique images directly. This algorithm alters the pixels value, hence it is advised that image analysis is performed before image georectification. The drawback of this research is that the low-cost GPS device experienced bad checksum errors, which resulted in missing data. The Wide Area Augmented System (WAAS) correction could not be employed because the satellites could not be locked onto whilst flying. The best GPS data were obtained from the Garmin eTrex (15 m kinematic and 2 m static) instruments which have a highsensitivity receiver with good lock on capability. The limitation of this GPS device is the inability to effectively receive the P-Code wavelength, which is needed to gain the best accuracy when undertaking differential GPS processing. Pairing the carrier phase L1 with the pseudorange C/A-Code received, in order to determine the image coordinates by the differential technique, is still under investigation. To improve the position accuracy, it is recommended that a GPS base station should be established near the survey area, instead of using a permanent GPS base station established by the Ordnance Survey.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Current issues in aquaculture: lessons from Malaysia

Aquaculture in Malaysia has become a top 15 of global producers with 521,000 tonnes of total aquaculture production. As a world producer, it is crucial to learn the foundation and current challenges encountered by the sector. This paper address six major issues and challenges of the aquaculture sector in Malaysia specifically issues of fish stock depletion, climate changes, current diseases, media influences in the sector, non-compliance feeding practiced and poor interaction between stakeholders. The methodology involves searching the divergent trusted database and related information using a most popular search engine that covers selected journals including resources from fisheries authorities: Department of Fisheries Malaysia, Food, and Agriculture Organization of The United Nation and WorldFish Center. A combination of this findings, newest technology application will be suggested as accurate and timely information on managing aquaculture systems

Comparison of Gravity Anomalies from Recent Global Geopotential Models with Terrestrial Gravity and Airborne Gravity over Johor Region

Gravity anomalies can yield an indirect but extremely useful picture of lateral changes in rock composition and structural patterns especially for rapid development area such as Johor region. The gravity anomalies can be derived from Global Geopotential Model (GGM) which is one of special product from the satellite technology that able to determine high accuracy of the earth's gravity field. In this study, the gravity anomalies derived from recent GGM published by International Global Geopotential Model were compared with five other GGMs model that compromised either terrestrial or airborne or both to derive the gravity anomalies.  In order to identify the best gravity model over the Johor region, two types of GGM class model has been selected for the comparisons which known as satellite only and combined class model.  The result shows that the gravity anomalies de-rived from satellite only class model with up 300 spherical harmonic coefficients is the best fit model and can be used as a reference for the Johor region. The RSME for the recent GGM via satellite only were +/- 5.865 and +/- 3.347 mGal for terrestrial and airborne gravity anomalies respectively compared to other GGM

Development of a mobile Aquaculture Management Systems for performance monitoring of aquaculture players

Towards achieving National Transformation 2050 for Malaysia’s smart communities 2050 with the Fourth Industrial Revolution, Malaysia aquaculture industry has become a targeted industry for the fast-growing food industry in the digital revolution that ranked in the top 15 world producers in 2014 with an estimated 521,000 tonnes of total aquaculture production. It is aligned to the 11th Malaysia Plan under the National Agrofood Policy (NAP), 2011-2020. However, in this recent years, the aquaculture sector in Malaysia is facing serious challenges in environmental issues and managing aquaculture systems during disease outbreak and disaster. This is due to lack of timely shared information among aquaculture players. For the purpose of the study, this paper used to address a mobile web application innovation as a disruptive technology to manage aquaculture systems in order to share the useful information of aquaculture issues on the right time and to the right person. Based on Design Science Research philosophy, Generic Design Cycle applied as the research methodology to develop mobile application development. Therefore, the advantages of the innovation and the significant impact to the industry also highlighted in this paper

The user requirements for building maintenance management systems in Malaysian public universities

Representing almost 50% of the total turnover of construction activities, building maintenance investment is huge all over the world. In facilities management activities, building maintenance is also regarded as a common function. This paper emphasises the current user requirements for building maintenance management in Malaysian public universities. Starting with semi-structured interviews, information gathered focuses on different aspects of building maintenance practice to identify the main user requirement issues. The areas of study are to justify the objectives of maintenance departments and examine the processes of maintenance reporting and verification and other associated tasks. In this study the applications and contributions of Information Technology (IT) facilities in maintenance practices are reviewed. Finally, the development of user requirements by using the interface design concept is explored. It is envisioned that, in the future, good building maintenance practices will become the norm in Malaysia so that users will extract maximum benefits from their buildings and facilities

Towards the development of a framework for sustainable marine space governance: a proposal for collaborative design approach

Malaysia is surrounded by ocean, approximately, 515,000 square kilometers covered by maritime realm and 4,576 km in length by coastline. The country has terrestrial borders with Thailand, Brunei Darussalam and Indonesia and has maritime borders with Thailand, Brunei Darussalam, Singapore, Indonesia, Vietnam and the Philippines. In addition Malaysia has many institutions for managing the marine environment. Hence the development of the institution and the scope still has some ambiguity, conflict and overlapping marine because organizations exist on the basis of a resolution of the Parliament. While on the physical condition, especially in the marine environment is difficult to determine the resolution authority area to an area of true governance. This paper addresses the need on collaborative design approach that fits into Malaysian marine space governance scenario, in particular with respect to stakeholder management. This paper first reviews several international collaborative designs. An exemplary model of collaborative has been developed, which constitutes the key factors that determine the success of collaborative implementation. This model is pending for experimentation to examine its effectiveness on Malaysia marine space governance

Systematic Literature Review of Role of Applied Geomatics in Mapping and Tracking Corona Virus

This review paper focuses on the Role of Applied Geomatics in Mapping of dispersion Corona Virus and sheds the light on the important studies on the topic. It also sheds the light on the tracking Corona Virus literature. This review paper also sheds the light on the definition, conceptualization, and measurement of corona virus mapping and tracking. This review paper has also showed a number of studies that linked the relationship between applied geomatics and the mapping and tracking corona virus. Authors explores the literature about applied geomatics, mapping and tracking from 2009 to end 2019 in order to investigate how these two geomatics techniques were born, how they have developed, which are the shared features and how it play an important role in corona virus the novel pandemic. This systematic review of current literature on applied geomatics and corona virus and provides insight into the initial and proposed framework of integrating geomatics to track and map the corona virus

Rerouting Framework for Sustainable Management in Elephant Conservation

: Human-Elephant Conflict (HEC) has been identified as one of the major threats to wild elephants through its range in thirteen countries including Malaysia. With development encroaching into the elephant’s natural territories, the number of HEC cases has increased. The aim of this study is focusing on developing a framework of elephant rerouting and causeway using geomatics technology and 3D Geo-visualisation as strategy to conserve elephant in sustainable way for Taman Negara Rompin. The framework was used to propose alternative pathway based on rational model. Four main elements strongly highlighted in the rerouting framework are elephant diet’s sources, tracking trail, fencing and deterrents and the corridors monitoring. With the integration of Geographical Information system, the knowledge to protect elephants from HEC can be enhanced

Flood Vulnerability Index Based on Indicator Approach in Assessing Flood Risk in Selangor, Malaysia

Floods are one of the most common and damaging natural disasters, claiming lives, and causing significant economic damage. Urbanization can increase the risk of flooding due to increased water runoff and volume. This study focuses on a flood vulnerability assessment approach as a planning tool by combining the Flood Vulnerability Index (FVI) with variables available in urban development areas. This index was created by combining the variables of three components: exposure, susceptibility, and resilience. FVI is a critical element in risk management and flood damage assessment. Vulnerability is described in FVI research as the amount of damage that can be predicted under conditions of exposure, susceptibility, and resilience. Vulnerability studies frequently use an indicator-based vulnerability assessment to estimate the complexity and degree of risk. FVI reflects the vulnerability of urban areas. Secondary data were used to obtain variables for the social and economic components. A quantitative method was used to calculate the correlation of each variable with flooding via the Statistical Package for the Social Sciences (SPSS). The indicators are categorized as exposure, susceptibility, and resilience, and these indices were created using normalization, weighting, and aggregation of the indicators. To determine the flood vulnerability in Selangor, a small number of indicators were selected to quantitatively assess the flood risk in Selangor. Based on calculated FVI, the vulnerability of the districts in Selangor has been ranked and categorized from high to very low. The result shows Gombak and Klang are the most vulnerable districts in Selangor to flooding because of their high exposure to flooding. The results of this study could serve as a reference tool for future flood risk mitigation efforts in Selangor