Bluetooth BLE5.3 anti loss device solution

2021-11-20

Bluetooth anti loss device is a device designed specifically for smartphones using Bluetooth technology. Its working principle is mainly to determine whether the item is still within your safe range by changing the distance. Mainly suitable for preventing the loss of valuable items such as mobile phones, wallets, keys, luggage, etc., and can also be used to prevent the loss of children or pets. The principle of the anti loss device is to establish a connection between the phone and Bluetooth, automatically detecting the connection status every 15 seconds. Place the Bluetooth on children, pets, or valuables, and once the distance between the Bluetooth and the phone exceeds a certain range, the phone will sound an alarm. Integrated circuits and reference designs provide you with low-power Bluetooth, material saving design and anti loss AirTag solutions, offering a variety of different beacon broadcast formats, allowing developers to create compatible products, achieve extremely low power consumption and easy to use beacons, and can be widely embedded in centimeter level UWB ranging and angle measurement technology, asset tracking, and other Internet of Things (IoT) services in smartphone applications.

图扬科技|蓝牙BLE5.3防丢器方案

The design principle of Bluetooth BLE5.2 anti loss device design scheme:

Wireless communication between mobile phones and anti loss devices is based on the Bluetooth 5.2 protocol, with the signal strength (RSSI) during communication as a reference, and with some filtering algorithms, the distance between mobile phones and anti loss devices is basically measured. On the basis of measuring distance through RSSI, and after setting the loss alarm conditions by the user, the loss alarm function of the collection and anti loss sub machine is achieved. By using buttons on your phone or anti loss device, you can control the sound of the other person sending a book to achieve the function of searching.

Bidirectional anti loss search:

If the relative distance between the mobile phone and this device exceeds the warning range, the alarm will be triggered immediately. At the same time, you can search for items through your phone, or you can search for your phone through this device.

Powerful and stable performance:

Equipped with adjustable distance (0-50) meters, anti loss, search, alarm sound prompt (or with vibration function), automatic power saving function, advanced AES128 encoding technology, reliable and stable performance.

From the above content, it can be seen that the design principle of the Bluetooth 5.2 anti loss device is the same. Then, install the app software on your phone and perform some simple settings matching to achieve the anti loss function.

AC6323A Bluetooth BLE chip parameters

Applicable chip: AC6323A

RISC 32 bit CPU

DC-96MHz RAM

8KB I-cache 2way

1KB Rocache 1way

64 Vector interrupts

Working temperature: -40 ℃ to+85 ℃

Storage temperature: -65 ℃ to+150 ℃

Packaging: QFN20

Applicable chip: AC6328

CPU: 32-bit DSP