Introduction to Bluetooth technology

/Product background/

/Development history/

/Current status of Bluetooth technology/

In 1994, Ericsson developed a wireless transmission solution; In May 1998, five well-known manufacturers such as Ericsson, Nokia, Toshiba, IBM and Intel Corporation proposed Bluetooth technology in the joint activities of short-range wireless communication technology. Its purpose is to provide a short-range, low-cost Wireless transmission application technology.

In the second half of 1999, the famous industry giants Microsoft, Motorola, Samsung, Lucent and the Bluetooth Special Group jointly launched the Bluetooth Technology Promotion Organization (SIG) to start a "Bluetooth" promotion worldwide application boom.

What's Bluetooth?

Bluetooth®: A wireless technology standard that enables short-distance data exchange between fixed devices, mobile devices, and building personal area networks.

How Bluetooth works?

Working mode:

>>>> Master mode     

>>>> Slave mode     

>>>> Broadcast mode     

>>>> Mesh mode

Classic Bluetooth and BLE

Generally, the BR/EDR Bluetooth before Bluetooth 4.0 is called Classic Bluetooth, and the BLE Bluetooth under Bluetooth 4.0 and above is called Bluetooth Low Energy.

Classic Bluetooth and BLE comparison

Definition and application of Bluetooth Beacon

Bluetooth Beacon is a broadcast protocol based on Bluetooth Low Energy (BLE). It can also be expressed as a low-power Bluetooth device with this protocol. The Bluetooth Beacon technology standard is not a standard developed by the Bluetooth SIG. It is called a “virtual standard” and is a Bluetooth application specification for a wide range of Beacon applications, led by a large vendor or enterprise group.

Each manufacturer's standard uses the structure of the BLE broadcast to embed their own format and data; then broadcast through the Bluetooth Beacon device; when the Beacon device is broadcasting, other devices do not need to be connected to it. The mobile phone application or the back-end system only needs to use the relevant information in the broadcast package to achieve the purpose of positioning, advertisement push and the like.

Three mainly beacon virtual standards on the market:

1. Apple's iBeacon

2. Google's Eddystone

3. AltBeacon of Radius Network

Bluetooth Beacon format

How Bluetooth iBeacon works

The Bluetooth Beacon will broadcast a packet to the surrounding area at a certain time (the default of our beacon is 500 milliseconds). As a separate Bluetooth host (such as mobile phone, Bluetooth gateway, etc.), it will receive the interval when performing the scanning action. A packet broadcasted by the Bluetooth Beacon.

At the same time, when the host receives the broadcast packet, it indicates which Bluetooth Beacon (slave) the broadcast packet comes from (each Beacon has a unique MAC address) and the current strength indication value RSSI of the received transmission signal.

At this time, if the app corresponding to Beacon is installed on the mobile phone, the app that receives the ID will take corresponding actions according to the setting conditions of the ID.

Bluetooth positioning

Bluetooth positioning is based on the RSSI (Received Signal Strength Indication) positioning principle. According to different positioning terminals, the Bluetooth positioning mode is divided into network side positioning and terminal side positioning.

Network side positioning

The network side positioning system is composed of a terminal (Bluetooth beacon), a Bluetooth gateway, a local area network and a back-end data server. Mainly used in personnel location tracking, passenger flow statistical analysis, intelligent attendance, access control systems, asset positioning and so on.

Terminal side positioning

The terminal-side positioning system consists of a Bluetooth Beacon and a terminal device (such as a mobile phone with integrated Bluetooth function); Mainly used in indoor positioning, navigation, marketing path planning, navigation, reverse car search, location-based precision marketing, etc.

Introduction to Bluetooth product Applications on the market

Classic Bluetooth products

Bluetooth access control

Bluetooth positioning

Bluetooth tracking / anti-lost

Introduction to Union Smart Bluetooth Product

Smart Bluetooth Card Product Application

Introduction to application fields of Bluetooth products and the application direction of our products

Unmanned hotel - access control, navigation

 Bluetooth hotel card LH-LYFC001-1A/1B

- RFID：Access control

- Bluetooth: Beacon positioning navigation application

- The appearance is consistent with the traditional room card

Unmanned hotel - access control, navigation

Application process:

◆ Quick registration: passengers enter the unmanned hotel, check in at the “self-check-in terminal” in the lobby, and automatically verify the identity information (ID card, face recognition) of the self-service terminal, and automatically issue the reservation room number and Bluetooth room card;

◆ Navigating to find a room: After the passenger gets the Bluetooth room card, the Bluetooth room card will automatically broadcast information to the nearby Bluetooth gateway; after receiving the information, the Bluetooth gateway will automatically plan the navigation route in conjunction with the positioning engine server; the passenger opens the application on the phone. (app, applet, etc.), the application will automatically prompt the navigation path, floor number, room number and other information. When the room is near, the room light will automatically light up;

◆ Access card: Passengers check in.

Working principle：

Unmanned hotel - access control, navigation

Application process:

◆ Quick registration: passengers enter the unmanned hotel, check in at the “self-check-in terminal” in the lobby, and automatically verify the identity information (ID card, face recognition) of the self-service terminal, and automatically issue the reservation room number and Bluetooth room card;

◆ Navigating to find a room: After the passenger gets the Bluetooth room card, the Bluetooth room card will automatically broadcast information to the nearby Bluetooth gateway; after receiving the information, the Bluetooth gateway will automatically plan the navigation route in conjunction with the positioning engine server; the passenger opens the application on the phone. (app, applet, etc.), the application will automatically prompt the navigation path, floor number, room number and other information. When the room is near, the room light will automatically light up;

◆ Access card: Passengers check in.

Working principle：

Access control

1. Bluetooth access control: The cell door uses Bluetooth technology to remotely control the door lock switch. When the user carrying the Bluetooth card arrives near the cell gate, the Bluetooth access control card reader obtains the broadcast information of the Bluetooth card, and the system automatically determines the broadcast information of the Bluetooth card. Whether to register, if it is already registered, it will open automatically. If it is not registered, it will be ignored.

2, RFID access control: Bluetooth card integrated HF RFID function, can be used with traditional RFID access control lock applications.

Bluetooth Smart Tracking Card - anti-lost, tracking, location recording, etc.

The Bluetooth BLE5.0 Smart Tracking Card (LH-LYZZC01-1A) is an active smart card developed based on the Dialogic DA14585 chip platform. This product is mainly used in anti-lost, tracking and searching for important personal items, anti-lost reminders for children, and vehicle location records.

iBeacon beacon---WeChat shakes (around)

Using WeChat to shake the peripheral function, deploy to the ibeacon terminal in the store, open the WeChat shake around the signal within the signal coverage, shake the mobile phone, you can push all kinds of information: such as shop introduction, product introduction, special offers, shake coupons.

iBeacon Beacons---Third-party application platforms: information, advertising push.

Entity Superstore can use Bluetooth Beacon to push information and send the latest activity information of the store to the mobile phone in the coverage area. Especially during the period when the holiday traffic is large, the Bluetooth Beacon can act as the guide purchaser can not take care of the customer service.

- Push users interested coupons

- Sign in to earn points

- Distribute electronic printing to retain regular customers

Access control attendance check-in

At the company entrance, the Beacon is set up, the employee downloads the application and activates the Bluetooth function on his mobile device, and the employee automatically signs in when the employee enters the company.

Museums, nursing homes, etc.---anti-lost, tracking, location recording, etc.

In some indoor areas such as museums, the Bluetooth gateway is deployed, and the Bluetooth beacon card is used as a visitor card. The Bluetooth gateway detects that you have entered the corresponding area and pushes the corresponding scenic spot for you. At the same time, it can be used for location, tracking and other applications.