VIM(Voice Indoor Maps) Application for Android has been developed for visually impaired persons to support indoor navigation.
Actually two versions of VIM were developped for
- indoor space with braille blocks
- indoor space without braille blocks
VIM has been developed for visually impaired, but it will also be useful for non-impaired users in finding indoor routes.
| location | departure | destination | video |
|---|---|---|---|
| Ease Daegu Station | Information Center | RestRoom Near By Number 2 Entrance | YouTube |
| Ease Daegu Station | RestRoom Near By Number 2 Entrance | Number 6 Entrance | YouTube |
VIM follows the OGC international standard IndoorGML format to express indoor spatial information. if you want to add or modify indoor space information, you must follow the schema format of the IndoorGML 1.0 core version.
In order to run VIM smoothly, a total of 4 <core:SpaceLayer/>s which has attribute gml:id as below table must exist in IndoorGML.
| gml:id | require | description |
|---|---|---|
| base | optional | This layer expresses only general indoor spatial information like a room, door, stair, elevator... |
| network | essential | This layer expresses route which user can use. It only consists of state and transition. |
| landmark | optional | This layer has poi which you want to recognize for user. It only consists of state. |
| safety | optional | This layer has dangerous or relative safety poi when user face it. It only consists of state. |
In order to express VIM object where exist in network layer you need to add value at IndoorGML element.
| layer | VIM object | indoorGML | element | value | description |
|---|---|---|---|---|---|
| base | stair | <core:CellSpace/> |
<name/> |
contain 'stair' | It represent the space of interLayerConnected state which has description value as type="stair" and exist in network layer |
| base | elevator | <core:CellSpace/> |
<name/> |
contain 'elevator' | It represent the space of interLayerConnected state which has description value as type="elevator" and exist in network layer |
| base | escalator | <core:CellSpace/> |
<name/> |
contain 'escalator' | It represent the space of interLayerConnected state which has description value as type="escalator" and exist in network layer |
| network | stair | <core:State/> |
<description/> |
type="stair" | It must be connected to other floor state as transition and |
| network | elevator | <core:State/> |
<description/> |
type="elevator" | It must be connected to other floor state as transition |
| network | escalator | <core:State/> |
<description/> |
type="escalator" | It must be connected to other floor state as transition |
| network | dotted block | <core:State/> |
<description/> |
dot="true" | It will work when turn on the visually impaired version |
| network | linear block | <core:State/> |
<description/> |
null | It will work when turn on the visually impaired version |
In order to make the space that can move floor, you need to make cellSpace in base layer and state which has been interconnected as contains based on base layer in network layer.
Using the location.json you can modify or add destination information. basically, destinations are <core:State/> which exist in network layer. the format of location.json is as bellow.
{
"service_no" : {
"209" : { // the number which is positioning system service number
"name": "pnu_abc.gml", // indoorGML file name
"floors": {
"2": { // floor number
"states": {
"S71": { // <core:State/> gml:id in network layer
"name": {
"en": "2F north man's restroom",
"ko": "2층 북쪽 남자 화장실"
}
},
...
...
}
},
...
...
}
},
"braille_blocks": false // if the place has been include braille blocks for visually impaired you can put true value
}
}
└─app
└─src
├─main
├─assets
│ └─indoorgml
├─java
│ └─lab
│ └─stem
│ └─vim
│ ├─core
│ ├─guideFactory
│ ├─indoorGML
│ ├─log
│ └─observer
├─raw
└─res
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