增加markdown说明文档

README.md

+
+# TPMSBleSDK instructions
+
+[中文版](README_CN.md)
+
+| Version | Update time	| Author	| Update information |
+|---------|------------:| ---------: | ----------------- |
+| v1.0    |	2019/07/08  |JosonXiong	| Preliminary version |
+			
+			
+
+## Table of Contents
+
+## 一、The conditions of use
+> * Minimum version iOS 8.0
+> * The Bluetooth version used by the device requires 4.0 and above.
+## 二、Use
+1. Apply the key and secret of sdk, application address: http://sdk.aicare.net.cn;
+2. Add "Privacy-Bluetooth Always Usage Description" to the info.plist file;
+3.Import TPSMSleSDK.framework into the Xcode project.
+4. Enter the following code in AppDelegate:
+```
+#import <TPMSBleSDK/ELTPMSBleManager.h>
+
+- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
+    // Override point for customization after application launch.
+    [ELTPMSBleManager setAppKey:@"key" appSecret:@"secret"];
+    return YES;
+}
+```
+5.Set the bitcode of the build setting to NO
+6.Import "#import <TPMSBleSDK/ELTPMSBleManager.h>" to the controller you want to use, and follow the "<ELTPMSBleManagerDelegate>" protocol.
+7.Set delegate
+```
+[ELTPMSBleManager shareManager].delegate = self;
+```
+8.Implementing proxy method
+```
+ -(void)TPMSBleManagerUpdateBleState:(TPMSBluetoothState)state;
+-(void)TPMSBleManagerReceiveData:(ELTPMSDataModel *_Nonnull)model;
+```
+   
+## 三、Get broadcast data
+### 1.Determine if the phone Bluetooth is available
+Proxy method：
+````
+-(void)TPMSBleManagerUpdateBleState:(TPMSBluetoothState)state;
+```
+Get the current Bluetooth status
+Or
+```
+[ELTPMSBleManager shareManager].isOn
+```
+Get current Bluetooth enabled is available；
+### 2.Start scanning
+```
+[[ELTPMSBleManager shareManager] startScan];
+```
+### 3.Stop scanning
+```
+[[ELTPMSBleManager shareManager] stopScan];
+```
+### 4.Method description
+```
+-(void)TPMSBleManagerUpdateBleState:(TPMSBluetoothState)state;
+```
+  This method is used to get the current state of Bluetooth, where the parameter "state" is an enumeration TPMSBluetoothState
+   The enumerated elements include: TPMSBluetoothStateAvailable (Bluetooth on TPMSBluetoothStateUnavailable), TPMSBluetoothStateBroadcasting, TPMSBluetoothStateStopBroadcasting
+```
+ -(void)TPMSBleManagerReceiveData:(ELTPMSDataModel *_Nonnull)model;
+```
+This method is used to call back the TPMS Bluetooth module broadcast data. The model is an ELTPMSDataModel data model. For details on the ELTPMSDataModel class, please see "Remarks".
+## 四、Remarks
+ELTPMSDataModel(Broadcast data model)
+|Type	|Parameter	|Description|
+|----   |-------:   |----------:|
+|ELTPMSDataType|type|Type of data|
+|int|classID|Product number|
+|double|v|Voltage coefficient (unit: V)|
+|double	|p|Pressure coefficient (unit: kPa)|
+|int	|t|Temperature coefficient (unit: °C)|
+|ELTPMSDeviceState|state|Tire pressure status|
+|int|	mcuVersion|MCU version number|
+|int	|startCount|Operation counts|
+|int	|stopCount|	Number of sneak stops|
+|NSString|bleVersion|Bluetooth version number|
+|NSString	|macAddress|MAC address|
+|NSString|	name|Bluetooth name|
+|NSInteger|createTime|Time when data was received|
+
+ELTPMSHeader.h(head File)
+Provide tire pressure unit, temperature unit, and the conversion method between units and the name symbol of the corresponding unit.