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Positioning system and method in ship compartment

A positioning method and positioning system technology, which are used in positioning, radio wave measurement systems, measurement devices, etc., to achieve the effects of strong signal penetration, fast loading and unloading requirements, and high dust concentration.

Pending Publication Date: 2019-01-08
SHANGHAI SHIPBUILDING TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has led to great restrictions on the use of positioning technologies such as UWB ultra-wideband, WiFi fingerprints, inertial navigation, and RFID area detection that work well in ordinary buildings in cabins.

Method used

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  • Positioning system and method in ship compartment
  • Positioning system and method in ship compartment
  • Positioning system and method in ship compartment

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Embodiment Construction

[0061] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0062] Such as figure 1 As shown, the present invention provides an indoor positioning system, including:

[0063] Multiple positioning beacons, multiple positioning beacons are fixed in the cabin, the arrangement of positioning beacons: multiple positioning beacons are arranged in the space that needs to be positioned, which can be on the ceiling, ceiling or bulkhead, and its purpose is Let its wireless broadcast signal cover the surrounding area of ​​its installation location. According to the characteristics of the Bluetooth signal and installation experience, the general vertical height of 3 to 5 meters and the horizontal interval of 3 to 6 meters are ideal for installation. The higher the installation density, the higher the cost, and of course the higher the positioning accuracy. The positioning beacon periodically sends information such as its own ID...

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Abstract

The invention discloses a positioning system and method in a ship compartment. The positioning method comprises the following steps: transmitting information including ID, a transmitting signal intensity value and the like through broadcast frames by positioning beacons arranged in the compartment; enabling people carrying positioning tags to enter the compartment, scanning and receiving ID of themultiple positioning beacons and a receiving signal intensity value RSSI by Bluetooth modules of the positioning tags, and then sending out the information and positioning tag ID wirelessly through aLoRa module; and receiving the information sent out by the positioning tags and then forwarding the information to a positioning server by a communication base station, calculating the value of the distance between each positioning tag and the corresponding positioning beacon by the receiving signal intensity value and the transmitting signal intensity value, and then acquiring the position information of the positioning tags in the compartment through a positioning algorithm. The positioning system can stably run in a severe environment which is high in dust concentration, obvious in vibration and large in noise and is filled with paint volatiles, the positioning precision can be high, and positioning requirements in a construction environment can be met.

Description

technical field [0001] The invention relates to the technical field of indoor positioning. More specifically, the present invention relates to a positioning system and positioning method in a ship cabin suitable for construction environments. Background technique [0002] The construction in the cabin of a large ship involves operations such as equipment installation and commissioning, grinding, and painting. Many of these operations are carried out at high altitudes, in closed cabins or in small spaces, and there are many people involved in the operation, distributed in every corner of the cabin. bring great challenges. The construction environment in the cabin is complicated, the line of sight is blocked a lot, and the lighting conditions are poor. It is difficult to find problems in time by relying on security personnel to inspect and observe with the naked eye. The safety and environmental department of the shipyard urgently needs new technical means to assist safety m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/20G01S5/10
CPCG01C21/206G01S5/10
Inventor 韦乃琨孔宁彭懿朱琦甄希金杨润党
Owner SHANGHAI SHIPBUILDING TECH RES INST
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