Abstract
Abstract. The installation of closed-circuit television monitors (CCTV) has been rapidly increasing ever since the September 11 attacks and has become one of the most widely used types of sensors for the tasks that require instantaneous and long-term monitoring. With the distinguished characteristics of direct visual inspection of the subject of interests, the availability of CCTVs offers the EOC commanders a quick way to validate and access the reported disaster incidents during emergency response. However, the heterogeneity of CCTV systems and the lack of appropriate descriptions precludes the optimized use of CCTV and causes immense difficulties in effectively coordinating or appraising the use of CCTV systems. By arguing standardized metadata plays the most crucial role in quickly and precisely finding the needed CCTV during emergency response, regardless of its specifications, suppliers, or locations, we propose an integrated operational framework based on the CCTV metadata specifically designed for emergency response in this paper. This framework standardizes the metadata to unify the descriptions for heterogeneous CCTV systems and fulfill the requirements for searching and selecting CCTV. Instead of the 2D point-based location or sector-based CCTV FOV coverage, we also propose to extend the FOV from 2D to 3D to precisely describe the area and even the features that can be monitored by the CCTV. This not only improves the precision and efficiency of selecting CCTV but also increase the commander’s ability to make quick and accurate responses to disasters. The advantages of integrating heterogeneous CCTV systems can tremendously improve the possibility of monitoring and updating the real-time status caused by hazards.
Highlights
AND RELATED WORKSOne of the purposes of establishing standard-based systems is to facilitate a barrier-free data circulation and exchange platform (Panta et al, 2020)
The sharing of standardized metadata enable better use of circuit television monitors (CCTV) systems deployed by different stakeholders
This is especially advantageous for emergency response assignment as we are looking for all available CCTVs to validate the disaster reports
Summary
One of the purposes of establishing standard-based systems is to facilitate a barrier-free data circulation and exchange platform (Panta et al, 2020). An ideal scenario is the heterogeneous types of sensors scattered at different locations are smartly organized as an effective internet-based operating mechanism with built-in knowledge, so as to improve the quality of human lives. With the overwhelming popularity of CCTV systems (Yeganeg et al, 2020), it is extremely advantageous if all available CCTVs can be effectively managed and accessed when an emergency situation occurs (Genc et al, 2013). The standardization simplifies the task of flexibly adding new CCTV systems to the monitoring mechanism whenever necessary, e.g., adding CCTV systems that are only allowed to access during extreme emergency situations. Two types of CCTV are identified according to if the captured images can be adjusted during operations
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