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An Efficient Communication Method Based on Bluetooth Broadcasting in Elevator Scenario

A technology of Bluetooth broadcasting and communication methods, which is applied in the field of efficient communication, and can solve the problems of limited number of concurrent communications and prolonged connection establishment.

Active Publication Date: 2022-05-20
SHANGHAI JISHENG NETWORK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mainstream of the application of Bluetooth technology in elevator technology is to establish a connection, but the pure use of establishing a connection and then interactive communication has the problems of prolonging the connection and limiting the number of concurrent communications.

Method used

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  • An Efficient Communication Method Based on Bluetooth Broadcasting in Elevator Scenario
  • An Efficient Communication Method Based on Bluetooth Broadcasting in Elevator Scenario
  • An Efficient Communication Method Based on Bluetooth Broadcasting in Elevator Scenario

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Experimental program
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Embodiment 1

[0039] A high-efficiency communication method based on Bluetooth broadcasting in the elevator scene. The application device of the method consists of three parts, namely the mobile phone APP end (hereinafter referred to as the APP end), the Bluetooth module end (BLE end), and the processor end ( CPU). see figure 1 shown.

[0040] This method is applied to the Bluetooth protocol version 4.2 and above. The application layer protocol is based on the ADV_IND type in the broadcast protocol—the general broadcast message. The effective and available data payload length of each broadcast message is 31 bytes. Based on this feature, the following three-terminal (APP side, BLE side and CPU side) communication interaction protocol. The Bluetooth and BLE terminals of the mobile phone both work in the slave mode, and realize "mutual broadcast communication" within the communication range through broadcast data, and define fields such as "source address", "destination address" and "command...

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PUM

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Abstract

The invention discloses a high-efficiency communication method based on bluetooth broadcasting in the scene of an elevator. The device used includes a mobile phone APP terminal, a BLE terminal, and a CPU; The BLE terminal uses the elevator-related unique ID as the address. In the elevator-related scenario, multiple APPs or multiple Bluetooth BLE terminals broadcast data to each other at the same time, relying on the address-guided retrieval of the application layer protocol to complete their respective protocol interactions. In the downlink data, CRC16 is used to compress the destination APP address, and a broadcast message frame is used to carry multiple downlink message replies, so that the BLE end has a one-to-many APP communication capability. The method provided by the present invention realizes multi-request and high-concurrency communication by adopting address compression code verification and message sequence number at the application protocol layer, so as to ensure rapid response and reply to multiple concurrent elevator requests at the same time.

Description

technical field [0001] The present invention relates to a communication method used in the field of elevators, in particular to an efficient communication method based on bluetooth broadcasting in the elevator scene. Background technique [0002] Most existing elevator passengers use IC cards to swipe their authorizations when calling and using elevators. Passengers need to go to the property center to register and receive physical cards before using them. They register and issue relevant authorization information through computer clients. If the cards are lost, they need to Lost reporting, cancellation, and re-application; in addition, due to the cost or process restrictions of physical card issuance, the time cost and labor cost of authorization issuance will be greatly increased for visitors who need authorization in shopping malls or office buildings. To sum up, the use of IC cards as a method of issuing elevator permissions has problems such as complicated card issuance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W4/80H04M1/72412B66B1/14B66B1/46
CPCH04W4/06H04W4/80B66B1/14B66B1/46B66B2201/4653Y02D30/70
Inventor 周耀华王文明
Owner SHANGHAI JISHENG NETWORK TECH