1. Product overview

This product is a lumbar support massage system for smart car seats. It can be connected to mobile phones, tablets, etc. through Bluetooth communication, and the system equipment can be set, adjusted and controlled through the mobile APP to achieve massage, support, ventilation and heating functions, and operations. Simple, convenient and practical.

2. Product composition

1. Device side composition

1.1 Main control board module

1.2 Power module

1.3 Bluetooth communication module

1.4 Massage lumbar support module

1.5 Heating module

1.6 Ventilation module

2. Mobile APP

Three, detailed analysis

(1) Device side

1. Actual operation

1.1 Preparation: Install before use, connect the power cable (it is best to ask a professional to install), connect the power cable to the power output part of the car, and confirm the integrity of the power cable, therapy electrode cable and monitoring cable, and no exposure. Ensure safety.

1.2 Turn on: Press the switch button to start the device. For the first use, you can use the mobile terminal APP to set the module and adjust related parameters. When it is turned on again, it will automatically use the last adjusted parameters by default.

1.3 Mode selection:

1.3.1 Massage, lumbar support energy consumption mode, additional ventilation, heating and other usage modes for consumers to choose, require hardware support.

1.3.2 Time value and air pressure value can be set to adjust the length of time and the feeling of hitting strength.

1.3.3 The equipment can be charged and discharged cyclically, unilaterally, unilaterally, or at the same time.

1.3.4 It will stop automatically after 15 minutes of continuous work, and deflate automatically after stopping.

2. Matters needing attention

2.1 Use time: to prevent customers from forgetting to shut down, and to better relieve fatigue, the mode will automatically shut down after 15 minutes of working time.

2.2 Description of the operating environment: working temperature: -20—35 degrees, working relative humidity: 30—70%

2.3 Automatically vent after power failure

2.4 Through Bluetooth connection, APP control work

2.5 Certification: CCC, software copyright certification

3. Performance parameters

3.1 Power module

3.1.1 Power requirements: input power, AC12V 8A (can not be connected to the power supply), with fuse

3.1.2 Power button: external, with start/stop function, the massager will automatically turn on when the car is started

3.1.3 Power on indicator: red LED

3.2 Main control board module

3.2.1 STM15W205 is tentatively determined, and a better solution will be adopted according to the performance cost

3.2.2 Protection circuit: Provide protection (fuse blown) when the stimulation circuit is short-circuited, overloaded, or other short-circuits and open circuits;

3.2.3 Massage, lumbar support function, reserved ventilation and heating interface; massage tentatively set 10 gears, lumbar support tentatively set 5 gears, and ventilation heating tentatively set 3 gears.

3.3 Communication module

3.3.1 Bluetooth, TI CC2541 is tentatively determined, and a better solution will be adopted according to the performance cost

3.4 Institutional part:

3.4.1 For sensors and air pumps, Party B shall provide samples and specifications and models.

3.4.2 Air valve solenoid valve, 4-port solenoid valve, samples and specifications and models provided by Party B.

 3.4.3 4 airbags, provided by Party A

 3.4.4 With APP QR code sticker paper (or line mark), the APP application can be downloaded through the terminal scanning.

Electrical frame

Functional architecture

This smart car seat waist support massage system development plan also includes practical operation experience solutions such as mobile application function design, control design and functional module selection design. APP UI makes fonts, backgrounds, and layouts all adopt minimalist mode. This part can be After the modification and adjustment are confirmed by the customer, APP logic editing, screen adaptation, system adaptation, etc. can be carried out.