Underground Location Use Cases

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Presentation transcript:

Underground Location Use Cases Month Year doc.: IEEE 802.11-yy/xxxxr0 Underground Location Use Cases Date: 2015-09-14 Authors: Xun Yang, Huawei Yasantha Rajakarunanayake, MediaTek

Use case 1: Location services of underground mining Month Year doc.: IEEE 802.11-yy/xxxxr0 Use case 1: Location services of underground mining User: The mining administrator tracks the personnel and valuable assets underground. The miners locate other personnel or equipment in the pits. Automated vehicles are navigated to the specified position. Mining machines use accurate under ground position information to make decision, for example, heading positioning of bucket-wheel excavator machines. Environment: Underground mines use WiFi networks for data transmission and personnel, vehicle and asset tracking. 1 AP could cover 100~200 meters range APs support 11n, ac, ax, ay, az 1 AP could support <50 STAs Use case: Mining administrator is alarmed that an underground machine is working abnormally. Administrator locates the specific machine on the central control station Administrator locates the engineer who is close to the machine and let him go to check. The engineer locates the machine on the display of his handset and is guided to the position. P2P cooperative positioning should be enabled to facilitate accurate positioning. Xun Yang, Huawei Yasantha Rajakarunanayake, MediaTek

Key Performance and Attributes Horizontal accuracy: For personnel: <1 m@90%, For digging/drilling heads: <0.1 m@90% Vertical accuracy: correct layer@99% in the pits Latency: <500ms Refresh Rate: > 2-5 location/sec Number of simultaneous users: < 15 depending on the size of the mine Impact on Network Bandwidth: < 3 additional frames per device/location Xun Yang, Huawei

Use case 2: Pipe/Vault Robot Positioning Month Year doc.: IEEE 802.11-yy/xxxxr0 Use case 2: Pipe/Vault Robot Positioning In China, the length of water supply pipes in cities have reached 500,000 kilometers. If we consider the pipe length of all municipal facilities, it will reach 1,800,000 kilometers. It is challenging to periodically, manually check the status of these pipes. Pipe/vault robot could be used to detect leakage/breakage/damages of pipes. The positioning technology is one of the key technologies in the design of pipe robot. 极低频管内机器人 http://wenku.baidu.com/link?url=NDDXZ4b7mSFuEBqn1YFzOIYaY1NNG0jk23V2Vb2Bf_5swmAI4DHHsvfI2KwNMRWaudpFcSx4Lo_JsIzpQ_p7_eui69Lw1M8JbpLMjwchKLy Dead reckoning – accumulated error is unneglectable Ultra-low-frequency – rely on sensitive receiver on the ground Xun Yang, Huawei Yasantha Rajakarunanayake, MediaTek

Pipe/Vault Robot Positioning User: companies which maintain the pipes Environment: Pipe/vault is equipped with WiFi enabled sensors or APs. Pipe robots work in the pipes. 1 AP per < 10 users Use case: Pipe /vault robots go through the pipe to detect leakage or breakage. It may carry cameras and sensors to record the status of pipes and the environmental conditions. When the robot detects a leakage or breakage point, it needs to locate the position and report the location to the AP directly or through wifi enabled sensors. The robots may need to exchange location information to facilitate positioning when APs or sensors are out of range. Positioning requirements: Horizontal accuracy: < 0.1m @ 90% Vertical accuracy: NA Latency: < 500ms Refresh rate: > 1 location/sec Expected number of simultaneous users: < 10 (within AP coverage area) Impact on Network Bandwidth: very low Xun Yang, Huawei

Straw Poll Do you agree to add the following use cases to the 802.11az working draft? Use case “Location services for underground mining ” and “pipe/vault robot positioning” Y: N: A: Xun Yang, Huawei

Motion To instruct the use case document editor to add use cases depicted by slides 2, 5 of submission 1159r1 to the use case working draft document. Move: 2nd: Y: N: A: Xun Yang, Huawei