Gas station virtual training system and application

The invention discloses a wireless sensor network node fault polling method based on a mobile robot, belonging to the field of fault diagnosis. The method comprises the following specific steps: (1) distributing and networking sensor nodes; (2) determining distances among the nodes and coordinates of the nodes by virtue of RSSI (Received Signal Strength Indicator) distancing; (3) determining an optimal path that the robot traverses each node by virtue of a hybrid genetic algorithm; (4) traversing all the nodes by virtue of the robot, and collecting corresponding data; (5) comparing the corresponding data with node data, judging whether a fault occurs and judging the type of the fault. By virtue of the wireless sensor network node fault polling method, the real-time polling of sensors in a large-scale wireless sensing network can be realized, the method is convenient and practical, and the fault can be diagnosed in real time.

Wireless sensor network node fault polling method based on mobile robot

The invention relates to a multi-point type gas leakage alarm. The multi-point type gas leakage alarm comprises multiple sub machine systems and only one master machine system, wherein each sub machine system is arranged at each gas using terminal and is responsible for detecting and testing the gas leakage situations of the using terminals and sending a test result to the master machine system, and the master machine system is used for carrying out analytical judgment processing after receiving the information, stimulating a Chinese female voice alarm signal according to a situation, stimulating a flash alarm signal according to the situation, stimulating a gas pipeline valve closing signal, stimulating an exhaust fan starting signal, stimulating an unlimited data communication alarm signal and stimulating an information storage system. According to the multi-point type gas leakage alarm, which is in an integrated type, disclosed by the invention, great convenience is provided for a terminal user to install and use, not only is indoor space saved, but also the client cost is saved to a large extent, and the multi-point type gas leakage alarm is safe, efficient and innovative.

Multi-point type gas leakage alarm

The invention relates to a rapid positioning system of sudden disastrous accidents and belongs to the technical field of disaster prevention. The system comprises a monitoring center computer and a plurality of sub-networks; each sub-network is located in a detection area and comprises a plurality of fixing nodes and fixing sensors which are installed at each detection point in the area fixedly; the structure and density of the fixing nodes and the fixing sensors in each sub-network and the types of the fixing sensors vary along with different actual environments of the detection area; and the detection signal of the fixing sensors are transmitted into the fixing nodes, then a wireless sensor network for positioning a sudden disastrous accident primarily is formed together with the monitoring center computer. The positioning system also comprises repairing robots which are allocated to certain important detection areas; the repairing robots are provided with positioning nodes and carry a plurality of throwable sensors. The invention also provides a positioning method which is realized by using the system. The system and method provided by the invention have the advantages of accuracy in detection, high positioning precision, rapid processing speed, wireless wiring and the like.

Rapid positioning system and method of sudden disastrous accident

The invention discloses a method for distributing wireless sensor nodes for nuclear pollution detection. A ground high-mobility mobile reconnaissance robot provided with mechanical arms serves as a platform, and nuclear detection wireless sensor nodes are carried to enter a nuclear pollution site. The nuclear detection wireless sensor nodes are taken out of a box by utilizing the mechanical arms and are arranged at a detection place, and a switch of the nuclear detection wireless sensor nodes is turned on for detection; after the nodes are distributed, far-end detection personnel can determine an area with the highest polluted degree according to a detection value of the nuclear detection wireless sensor nodes and control the robot to enter the area so as to find a pollution source; and after the detection task is ended, the robot returns to the previous node distributing position according to global position system (GPS) positioning, and the nodes are closed and recovered into the box one by one. By the method, the working efficiency of the nuclear detection in a wide-range polluted area is greatly improved, and the nuclear radiation pollution degree in the polluted area can be rapidly and accurately found out.

Method for distributing wireless sensor nodes for nuclear pollution detection

The invention provides a leakage monitoring and positioning early-warning system in petrochemical industry and an establishment method thereof, relating to a device for prevention, inspection and position determination of gas leakage. The system comprises a host computer system, a central node, a routing node and a terminal node, wherein the software part in the host computer system comprises a geographic information system and a virtual reality control system; all the nodes are wireless network nodes comprising a ZigBee wireless module, a sensor module and a power supply module; and the ZigBee wireless module adopts a ZigBee wireless transport protocol, the sensor module carries a small leakage gas-sensitive transducer, and the power supply module is composed of a direct current cell of 3.6 V and a voltage conversion circuit. The invention achieves the synchronization of environment parameters of all monitoring points, early-warning information of potential accidents and correct positioning information of dangerous sources when an accident occurs in a monitoring center and the whole site, and the invention solves the problems that sudden leakage events can not be monitored and early-warned in time and the site information can not be acquired and transmitted in time in the prior art.

Leakage monitoring and positioning early-warning system in petrochemical industry and establishment method thereof

The utility model which belongs to the technical field of advanced manufacturing and automatic control relates to a leakage detection device based on Ad hoc network deployment sensor, comprising an emergency device. A node ejection deployment sensor is disposed on the emergency device and a central node used for building a wireless sensor network is fixed on the emergency device. The node ejection deployment sensor consists of a tray and an ejection rack. The ejection rack is fixed on the emergency device and the tray placed with a plurality of sensor nodes is fixed on top of the ejection rack. The sensor node is divided into two kinds: a full-power node and a half-power node. The ejection rack is controlled by the central node and is used for ejecting sensor nodes. The utility model is advantageous in that danger source or gas leakage point can be accurately found in the shortest time and a variety of site data can be acquired and emergent response can be made, thereby casualties and economic loss can be reduced to the maximum and industrial safety can be maintained.

Leakage detection device based on Ad hoc network deployment sensor

The utility model belongs to the technical field of advanced manufacturing and automatic control, and relates to an industrial wireless spreading sensing node for a scene of accident, which comprises an antenna, a sensor, a control board with a transmitting-receiving module and a control module, and a collection board with a signal processing circuit, wherein the control module is connected with the antenna through the transmitting-receiving module, the signal collected by the sensor is sent to the control module after being processed by the signal processing circuit, a shell of the industrial wireless spreading sensing node comprises two shells adopting a partition-type space, a separation plate is respectively fixed on the opening of the two shells, the two separation plates are connected with each other through a bump protection ring, and the antenna, the sensor, the control board and the collection board are individually arranged inside the partition-type inner space of the two shells The interior of the industrial wireless spreading sensing node adopts the partition-type design and is provided with the separation plate, so the node is free from being influenced by the external temperature In addition, the split-type design is adopted, and a universal expansion port is added, so relevant gas or temperature-humidity sensors can be replaced according to the practical application

Industrial wireless spreading sensing node for scene of accident

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Chengjun Ding

Author Tools

Chat about Author

Papers

Leakage monitoring and positioning early-warning system in petrochemical industry and establishment method thereof

Leakage detection device based on Ad hoc network deployment sensor

Industrial wireless spreading sensing node for scene of accident