The Constructing of Integrated Remote Monitoring System for Cold Store

2012 ◽  
Vol 462 ◽  
pp. 313-317
Author(s):  
Meng Ya Zhang ◽  
Qing Ying Zhang ◽  
Zhi Min Chen ◽  
Ying Chi

Being an important node of cold chain logistics, the cold store has to be monitored and managed remotely in real-time, which is very important to operate the whole system effectively. With the help of wireless sensing network and other advanced techniques, a cold store remote monitoring system is set up, which is composed of digital video surveillance system, refrigeration control system and fire alarm system etc. Cold store is then monitored in a long range and managed systemically. The security and reliability of the cold store is guaranteed effectively.

2014 ◽  
Vol 977 ◽  
pp. 330-333
Author(s):  
Qi Lin Hao ◽  
Ping Xian Yang ◽  
Ming Jie Wang ◽  
Rui Ma

In this paper, in order to achieve real-time remote monitoring of fire site, we designed a intelligent remote fire monitoring system based on ZigBee network and GPRS network. This system, used ZigBee and sensor to build data acquisition and short distance transmission network and combined with GPRS wireless data transmission and SMS alarm ,cooperates with the server and PC to build a remote monitoring scheme based on GRPS.


2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Wei Chen ◽  
ChenYu He ◽  
JianRong Lu ◽  
Kui Yan ◽  
Jin Liu ◽  
...  

In order to comprehensively improve the sensitivity of fire warning and effectively shorten the warning time, this paper proposes and implements an indoor distributed fire alarm system based on low power wide area network. The system is mainly composed of three parts: a multisensor acquisition node based on LoRa technology, a distributed edge gateway, and a remote user monitoring system. The multisensor collection node obtains environmental parameters such as indoor temperature, smoke concentration, and air quality and then transmits the sensing data to edge gateway by LoRa after preprocessing. The edge gateway is based on an embedded Linux platform and is deployed in distributed state to collect and store data from multiple collection nodes. Besides, edge gateway forwards valid data to the remote user monitoring system by standard MQTT protocol. The user monitoring system displays current deployment area parameters to users in real time and provides early warning prompts based on relevant preset indicators to help the administrator make more accurate decisions on corresponding measures. The system has been deployed and tested in Nanjing Institute of Technology. By sensor calibration experiments, LoRa communication experiments, and system tests in different environments, the experimental results show that the average received signal strength in a small interference space is -104.12 dBm, and the average received signal strength in a noisy signal environment is -57.5 dBm. By setting the optimal transmitting power for each distance, the packet receiving rate can reach more than 95%, and the alarm accuracy can reach 100% under premise of ensuring the lowest power consumption. Finally, this paper conducts a comprehensive performance analysis on the wireless communication performance of environmental collection nodes, multisensor data fusion algorithm, distributed LoRa edge gateway deployment performance, and remote system early warning accuracy.


2012 ◽  
Vol 433-440 ◽  
pp. 6917-6920 ◽  
Author(s):  
Quan Min Li ◽  
Chang Ying Xu ◽  
Hong Li Lv ◽  
Jun He

According the radial flutter extension structure problems in commonly used fire alarm system, a novel topology structure of fire alarm systems based-on holographic crystal forms was proposed. It was composed of multiple devices, including intelligent fire detectors, which can communicate with each other, record fire information and judge, alarms, security, evacuation lights etc. Each device can record all of the information so as to form the hologram. These devices on each floor level in buildings and decorated with vertical layout in the staircase, so that fire alarm system topology based-on holographic crystal forms was set up. The systems can ensure the normal operation of other devices in case that central control equipment failed in extreme cases. And then the automatic fire safety equipment continued to automatically control fire rescue and guide the staff in the correct escape route. Moreover, when a device or a line goes wrong, only failure equipment or system was cut off line, and others were still able to keep communications. Compared with other methods, this new system does not affect the normal equipment of the work.


2011 ◽  
Vol 187 ◽  
pp. 593-597
Author(s):  
Zhi Qin Zhang

The fire remote network monitoring technology based on modern communication and network transmission technology can ensure that the fire alarm system and fire safety facilities play their due roles. We use CAN bus to acquire distributed data of remote fire information for its characteristics of distributed control and its advantages of data transmission, and then use the embedded gateway to Connect CAN and an Ethernet LAN or the Internet seamlessly.


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