应用领域：汽车电子

方案类型：成品

主控芯片：nRF52832

方案概述

方案介绍

1.现有车位锁的操作方式主要为两种：A.手动操作B.红外遥控。其中手动操作的车位锁内部只包含机械执行部分，车主必须下车后才能操作车位锁，十分不便;而红外遥控式的车位锁不让车主下车就可以遥控车位锁，提高了方便程度，代价是必须让车主配备相应的专用遥控器，由于易丢失，还是存在使用上的不便。

2.我司在现有车位锁的技术基础上，将其控制接收部分增加或改成蓝牙控制模块，通过无线信道与控制端(手机)的蓝牙控制模块传输数据，并由控制端(手机)的APP对车位锁的工作状态进行软件操作控制，达到近距离的人不移离车的便捷操作效果，充分应用了手机这个常用便携电子设备，避免了携带其他设备的负担。

蓝牙车位锁的操作流程

第一步(开车位锁)：

当车主将车靠近停车位即将停泊时，车主可操作手机端的车位锁控制APP，将进场状态控制指令信号经手机端的蓝牙通信模块，通过无线信道传输至车位锁端的蓝牙通信模块，该蓝牙通信模块将从手机端接收来的指令信号，亦即数字信号，经数模转换后在电气控制模块中进行功率放大，从而让车位锁端的机械执行机构做相应动作，例如车位锁的挡臂梁下降到低位让车无阻地驶入停车位。

第二步(闭车位锁)：

当车主驾车驶离停车位不远处，车主继续通过车位锁控制APP的操作，并将车位锁设置到排他性保护状态，相应控制指令信号经两蓝牙通信模块通过无线信道传输到车位锁端控制部分，使车位锁的挡臂梁上升到高位，从而防止非车位主的车辆入侵车位领地，最终捍卫了车位主的应有权益。

方案功能特点

1.操作简便，APP手动遥控开锁或自动感应开锁。

具有自动复位和报警功能，挡臂动作过程中遇外力将报警，同时回复到原来位置。

2.可以让普通的电动车位锁和普通遥控车位锁变的智能。

例如：通过APP寻找车位锁具有导航的作用;通过APP进行车位锁开锁或上锁，或者当汽车靠近准备停车时自动开锁，离开后自动上锁;

3.可以记录次数时间并且连接到云端进行管理。

当有人强行破坏时就会发出声光报警，如果配有网关就会给绑定的手机发出报警消息，同时车主也可以远程开锁让朋友的爱车停在自己的车位上。

4.部分智能车位锁配合结合专门的云平台系统可以还可以实现在线预定停车位。

如：某停车场配备了该款智能车位锁，就可以通过网络查询这些车位锁的状态，如果没有被占用就可以在线选择某段时间预定，到时候爱车直接开到那里通过授权的手机就会自动开锁。没有预定授权的手机就不能开锁。

5.闲置时可将自己的车位可以租赁，如丁丁停车。

方案优点

1.相比红外线车位锁，蓝牙遥控车位锁明显更具优势，首先智能手机APP控制相比遥控器控制更智能、更直观，并且更细致。

2.相比机械车位锁，蓝牙车位锁更方便快捷，随停随走，无需下车即可实现车内手机控制，十分简单方便，操作也更高效省时。

3.手机APP遥控车位锁，可以实现无需遥控器，即使忘记带遥控器也毫无影响。因为手机本身就可以充当遥控器实现远程操作，遥控器可能疏忽丢失，忘带，但是手机由于使用频率高，一般不会掉落，且不用更换电池。

4.通过手机APP可以直接查看车位锁状态，比如是否被占用，是否被破坏等等。部分小区统一收费的系统还可以做到手机扣费，安全高效。

5.通过手机可以查看预定车位，查看最佳停车车位，出行无忧，更省心。

nRF52832

Advanced performance Bluetooth5/ANT/2.4GHz proprietary SoC

DESCRIPTION

The nRF52832 SoC is a powerful, highly flexible ultra-low power multiprotocol SoC ideally suited for Bluetooth® low energy (previously called Bluetooth Smart), ANT and 2.4GHz ultra low-power wireless applications. The nRF52832 SoC is built around a 32-bit ARM® Cortex™-M4F CPU with 512kB + 64kB RAM. The embedded 2.4GHz transceiver supports Bluetooth low energy, ANT and proprietary 2.4 GHz protocol stack. It is on air compatible with the nRF51 Series, nRF24L and nRF24AP Series products from Nordic Semiconductor.

Bluetooth 5

The nRF52832 has hardware support on-chip for Bluetooth 5. This includes high throughput and advertising extension.

Bluetooth 5 high throughput

Bluetooth 5 advertising extension supported

Processing power

The nRF52832 incorporates a powerful Cortex-M4F processor enabling the most demanding applications with complex arithmetic requirements to be realized in a single chip solution. The IC supports DSP instructions, a Floating Point Unit (FPU), single-cycle multiply and accumulate, and hardware divide for energy-efficient process of computationally complex operations.

Multiprotocol radio

The 2.4GHz radio supports multiple protocols including Bluetooth low energy, ANT and 2.4GHz proprietary. The radio has high definition RSSI and highly automated functionality, including EasyDMA for direct memory access during packet send and retrieve. Nordic provides protocol stacks for Bluetooth low energy. ANT protocol stacks are available from ANT here: www.thisisant.com.

Power Efficiency

The nRF52832 SoC is an extremely power efficient device that can run from a supply between 1.7V and 3.6V. All individual peripherals and clocks offer complete flexibility of power down when not required for task operation thus minimizing power consumption to a minimum. The IC has a comprehensive system of automated and adaptive power management features. These features range across the entire IC’s operation from power supply switching to peripheral bus/EasyDMA memory management, to automated shut down of all but the absolute essential peripherals required to perform a task.

On-chip NFC tag

NFC™-A tag support is included on chip. Out-of-Band (OOB) pairing using NFC simplifies the process of authenticated pairing between two Bluetooth devices by exchanging authentication information over an NFC link.

Package options

The nRF52832 is available in 6x6mm 48-pin QFN packages and 3.0x3.2mm ultra-compact wafer-level chip-scale packages (WL-CSP).

SoftDevice

The nRF52832 is supported by the S132 SoftDevice, a Bluetooth 5 pre-qualified protocol stack. Click for more information on nRF52 Series in our Infocenter

FEATURES

Single chip, highly flexible, 2.4 GHz multi-protocol SoC

32-bit ARM Cortex-M4F Processor

1.7v to 3.6v operation

512kB flash + 64kB RAM

Supports concurrent Bluetooth low energy/ANT protocol operation

On-chip NFC tag for Out-of-Band (OOB) pairing

Up to +4dBm output power

-96dBm sensitivity, Bluetooth low energy

Thread safe and run-time protected

Event driven API

On air compatible with nRF24L and nRF24AP series

2 data rates (2Mbps/1Mbps)

PPI - maximum flexibility for power-efficient applications and code simplification

Automated power management system with automatic power management of each peripheral

Configurable I/O mapping for analog and digital I/O

3 x Master/Slave SPI

2 x Two-wire interface (I²C)

UART (RTS/CTS)

3 x PWM

AES HW encryption

12-bit ADC

Real Time Counter (RTC)

Digital microphone interface (PDM)

On-chip balun

APPLICATIONS

Internet of Things (IoT)

Wearables

SmartHome sensors

Connected white goods

Computer peripherals

Voice-command smart remotes

A4WP ‘Rezence’ wireless charging

Beacons

Sports and fitness sensors and hubs

Connected health products

Smart watches

RC Toys

Interactive games

Building automation and sensor networks

Product Brief Description

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S132 Bluetooth 5 protocol stack for nRF52832 and nRF52810

nRF52 DK Development kit for nRF52832 SoC

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DEVELOPMENT TOOLS AND SOFTWARE

The nRF52832 SoC is supported by the nRF52 DK development kit. Software support for the nRF52832 SoC is split in two major parts: SoftDevices, which are complete wireless protocol stacks; and the nRF5 Software Development Kit (SDK) forming a common code base for the nRF52832 SoC.

nRF52 DK

The nRF52 DK are versatile single board development kits for Bluetooth® Smart, ANT and 2.4GHz proprietary applications using the nRF52832 SoC. The kits supports development for the nRF52832 SoC.

The kits are hardware compatible with the Arduino Uno Revision 3 standard, making it possible to use 3rd-party shields that are compatible to this standard. An NFC antenna can be connected the kit to enable NFC tag functionality. The kits gives access to all I/O and interfaces via connectors and has 4 LEDs and 4 buttons which are user-programmable.

The kits supports the standard Nordic Software Development Tool-chain using Keil, IAR and GCC. Program/Debug options on the kits are Segger J-Link OB.

Product Brief Description

nRF52 DK Development kit for nRF52832 SoC

nRF52 Preview DK Development kit for nRF52832 SoC (Not recommended)

nRF5 SDK Software Development Kit (SDK) for nRF51 and nRF52 Series