Energy-saving indoor uplink positioning method and system

A monitoring system and positioning service technology, applied in the direction of reducing energy consumption, services based on specific environments, short-distance communication services, etc., can solve the problems of reducing useful signal reception, increasing positioning delay, affecting positioning accuracy, etc. The effect of compactness, reduced positioning delay, and improved positioning capacity

Active Publication Date: 2020-04-07
深圳市觅拓物联信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These Bluetooth devices are transmitting Bluetooth broadcast signals, causing the Bluetooth signal receiving devices to continue to receive Bluetooth broadcast signals, which not only consumes power, but also reduces the reception of useful signals, affects positioning accuracy, and increases positioning delay.

Method used

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  • Energy-saving indoor uplink positioning method and system
  • Energy-saving indoor uplink positioning method and system
  • Energy-saving indoor uplink positioning method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0057] Embodiment 2: In Embodiment 1, the network manager can set the positioning field strength threshold while configuring the Bluetooth beacon as a white list to scan the uplink positioning broadcast status. Only the MAC address is in the white list, and the receiving field strength RSSI exceeds the positioning Only when the received broadcast signal reaches the field strength threshold will it be uploaded to the network management system for positioning calculation. Because the Bluetooth chip has receiving sensitivity requirements, the calculation of the field strength of the broadcast signal lower than the receiving sensitivity usually has a large error, and there are many interference signals transmitted by the Bluetooth signal. When the receiving field strength is lower than the threshold, the signal does not have much effect on positioning. help. By filtering the measurement signal, it is helpful to save the transmission bandwidth, and in the case of positioning a larg...

Embodiment 3

[0058] Embodiment 3: Referring to the bluetooth terminal work flow chart of the indoor uplink positioning embodiment 3, when the bluetooth terminal starts uplink positioning, it first sends an uplink positioning access broadcast, and the broadcast format is:

[0059] Positioning access sign 0A + preset service sign (2Bytes) + contracted service provider sign (6Bytes) + user attribution (6Bytes) + 6Bytes user identification data + transmission power (1Byte) + broadcast cycle (2Bytes, unit millisecond);

[0060] In the broadcast, the first two fields: the positioning access flag 0A, and the preset service flag (2Bytes), are used to distinguish the general Bluetooth broadcast from the uplink positioning access broadcast of the method of the present invention. The Bluetooth beacon of the indoor distributed antenna monitoring system distinguishes whether there are users who need to receive uplink positioning services by identifying these two fields. When the Bluetooth beacon detect...

Embodiment 4

[0071] Embodiment 4: Referring to the Bluetooth beacon work flow chart of Embodiment 4 of indoor uplink positioning, when the Bluetooth beacon does not detect a Bluetooth terminal that requires uplink positioning in the working area, the frequency of receiving uplink positioning can be reduced, such as setting the scanning interval It is about 10 seconds, and the scanning window width is about 1 second, so as to ensure that it can be in a low-power sleep state for 90% of the time. In addition, by time-sharing, the Bluetooth beacon can broadcast a signal including a positioning access flag OB and a preset service flag (2Bytes).

[0072] When the Bluetooth beacon scans the uplink positioning access broadcast signal including the positioning access flag 0A and the preset service flag (2Bytes), the signal is sent back to the network management. At the same time, the Bluetooth beacon increases the scanning window to about 9 seconds, or even 10 seconds, or reduces the scanning inter...

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PUM

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Abstract

The invention relates to an energy-saving indoor uplink positioning method and system, and the method comprises the following steps: S1, a positioning Bluetooth terminal transmits a preset uplink positioning access Bluetooth broadcast in a determined period, and an indoor distributed antenna monitoring system waits to inform the positioning Bluetooth terminal that the positioning Bluetooth terminal is monitored by uplink positioning; wherein the uplink positioning access broadcast comprises the following data: a positioning access sign + a preset service sign + a subscription service providersign + a user attribution + user identification data + transmitting power + a broadcast period. The invention is reasonable in design, compact in structure and convenient to use.

Description

technical field [0001] The invention relates to an energy-saving indoor uplink positioning method and system. Background technique [0002] Wireless communication indoor positioning can be realized through low-cost Bluetooth communication, in which the passive positioning method is to send out Bluetooth broadcast signals through Bluetooth devices carried by people or objects, and receive these Bluetooth broadcast signals by pre-deployed Bluetooth signal receiving devices Large and small estimates the distance between the transmitting Bluetooth device and the receiving device, thereby determining the location of the transmitting Bluetooth device. [0003] Due to the low cost of Bluetooth, a large number of Bluetooth devices have been deployed in commercial environments, including some Internet of Things applications and sensor applications. These Bluetooth devices are transmitting Bluetooth broadcast signals, causing the Bluetooth signal receiving devices to continue to rece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00H04W4/33H04W4/06H04W4/80H04W52/02
CPCH04W4/06H04W4/33H04W4/80H04W52/02H04W64/00Y02D30/70
Inventor 周雷张育鹏
Owner 深圳市觅拓物联信息技术有限公司
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