Parsing raw data received from bluetooth HDP device
I am trying to read data from an Omron 708-BT Blood Pressure Monitor which is certified by the continua health alliance. I am following this example of a Bluetooth HDP App. I am
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@ Jieqin - great that you got it too :)
paste this in your reading thread under the block of
else if (data[0] == (byte)0xE7){ Log.i(TAG, "E7"); //work for legacy device... if (data[18] == (byte) 0x0d && data[19] == (byte) 0x1d) //fixed reportto parse your agents answer - and if it works, please rate my hints :)
else if (data[18] == (byte) 0x0d && data[19] == (byte) 0x1f) //mp var report { count = 999; //set invoke id so get correct response invoke = new byte[] { data[6], data[7] }; //write back response (new WriteThread(mFd)).start(); //parse data!! int length = data[21]; Log.i(TAG, "length is " + length); // check data-req-id int report_no = data[25]; int number_of_data_packets = data[29]; //packet_start starts from handle 0 byte int packet_start = 36; final int SYS_DIA_MAP_DATA = 1; final int PULSE_DATA = 2; final int STATUS = 3; for (int i = 0; i < number_of_data_packets; i++) { int obj_handle = data[packet_start+1]; switch (obj_handle) { case SYS_DIA_MAP_DATA: int sys = byteToUnsignedInt(data[packet_start+9]); int dia = byteToUnsignedInt(data[packet_start+11]); int map = byteToUnsignedInt(data[packet_start+13]); Log.i(TAG, "sys is "+ sys); sendMessage(RECEIVED_SYS, sys); Log.i(TAG, "dia is "+ dia); sendMessage(RECEIVED_DIA, dia); Log.i(TAG, "map is "+ map); break; case PULSE_DATA: //parse int pulse = byteToUnsignedInt(data[packet_start+5]); Log.i(TAG, "pulse is " + pulse); sendMessage(RECEIVED_PUL, pulse); break; case STATUS: //need more signal Log.i(TAG, "STATUS"); break; } packet_start += byteToUnsignedInt(data[packet_start+3]) + 4; //4 = ignore beginning four bytes } }讨论(0) -
afaik you have to choose between automatic or push upload.
if automatic is working and you can read the data, then just disable auto upload and push the data via the upload button to your device directly after a measurenment...
regards
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I read the IEEE from here: IEEE 11073-20601-2008
Please look at page 57 on CLause 7.4.4:
Agent-initiated measurement data transmission is sent by the agent, for example, as a result of a new measurement that is taken. Manager-initiated measurement data transmission is explicitly requested by the manager by issuing a command (i.e., MDS-Data-Request) to instruct the agent to start or stop sending measurement data. Dependent on the capability of the agent, the time period while this reporting mode is active is configurable (e.g., fixed period or always while associated). A manager shall support receipt of both agent- and manager-initiated measurement data transmission from an agent. An agent may support generation of either one or both agent- and manager-initiated measurement data transmission. In both agent- and manager-initiated measurement data transmission, event reports are used to carry the measurement data.
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you maybe should send the right device address in the data_AR back to the device - in your case: 002209225835c328
therefor you should exchange:
(byte) 0x00, (byte) 0x08, //bt add for phone, can be automate in the future (byte) 0x3C, (byte) 0x5A, (byte) 0x37, (byte) 0xFF, (byte) 0xFE, (byte) 0x95, (byte) 0xEE, (byte) 0xE3,with:
(byte) 0x00, (byte) 0x08, //bt add for phone, can be automate in the future (byte) 0x00, (byte) 0x22, (byte) 0x09, (byte) 0x22, (byte) 0x58, (byte) 0x35, (byte) 0xc3, (byte) 0x28,and also use the
0x00 0x03 result = accepted-unknown-configlikefinal byte data_AR[] = new byte[] { (byte) 0xE3, (byte) 0x00, (byte) 0x00, (byte) 0x2C, (byte) 0x00, (byte) 0x03,EDIT:
I made an Error - the Address is not the one of your BPM-DEvice but of your Phone... To get a EUI 64-Bit Address out of your 48bit MAC Address, just split it in the middle and add 0xFF 0xFE like:
BT 48bit MAC [00:11:22:33:44:55]becomesEUI 64 Bit [00:11:22:FF:FE:33:44:55]I am very sorry
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The data buffer contains 2byte values and 4byte values. Probably shorts and ints as you can see in the pdf. Do you account for that?
0xE7 0x00 APDU CHOICE Type (PrstApdu) 0x00 0x84 CHOICE.length= 132 0x00 0x82 OCTET STRING.length = 130 0x00 0x01 invoke-id (differentiates this message from any other outstanding) 0x01 0x01 CHOICE (Remote Operation Invoke | Confirmed Event Report) 0x00 0x7C CHOICE.length = 124 0x00 0x00 obj-handle = 0 (MDS object) 0x00 0x00 0x10 0x15 event-time (set to 0xFFFFFFFF if RelativeTime is not supported) 0x0D 0x1C event-type = MDC_NOTI_CONFIG讨论(0) -
I managed to solve the problem. The main issue I had was that I only took one blood pressure reading then kept pressing upload. This does upload some information about the monitor but doesn't include a blood pressure reading. Once I knew this I had a number of other smaller bugs to solve but nothing too complicated. The code for the final working service is below.
public class BluetoothHDPService extends Service { private static final String TAG = "BluetoothHDPService"; public static final int RESULT_OK = 0; public static final int RESULT_FAIL = -1; // Status codes sent back to the UI client. // Application registration complete. public static final int STATUS_HEALTH_APP_REG = 100; // Application unregistration complete. public static final int STATUS_HEALTH_APP_UNREG = 101; // Channel creation complete. public static final int STATUS_CREATE_CHANNEL = 102; // Channel destroy complete. public static final int STATUS_DESTROY_CHANNEL = 103; // Reading data from Bluetooth HDP device. public static final int STATUS_READ_DATA = 104; // Done with reading data. public static final int STATUS_READ_DATA_DONE = 105; // Message codes received from the UI client. // Register client with this service. public static final int MSG_REG_CLIENT = 200; // Unregister client from this service. public static final int MSG_UNREG_CLIENT = 201; // Register health application. public static final int MSG_REG_HEALTH_APP = 300; // Unregister health application. public static final int MSG_UNREG_HEALTH_APP = 301; // Connect channel. public static final int MSG_CONNECT_CHANNEL = 400; // Disconnect channel. public static final int MSG_DISCONNECT_CHANNEL = 401; public static final int RECEIVED_SYS = 901; public static final int RECEIVED_DIA = 902; public static final int RECEIVED_PUL = 903; private int count; private byte[] invoke = {0x00, 0x00}; private BluetoothHealthAppConfiguration mHealthAppConfig; private BluetoothAdapter mBluetoothAdapter; private BluetoothHealth mBluetoothHealth; private BluetoothDevice mDevice; private int mChannelId; private Messenger mClient; // Handles events sent by {@link HealthHDPActivity}. @SuppressLint("HandlerLeak") private class IncomingHandler extends Handler { @Override public void handleMessage(Message msg) { switch (msg.what) { // Register UI client to this service so the client can receive messages. case MSG_REG_CLIENT: Log.d(TAG, "Activity client registered"); mClient = msg.replyTo; break; // Unregister UI client from this service. case MSG_UNREG_CLIENT: mClient = null; break; // Register health application. case MSG_REG_HEALTH_APP: registerApp(msg.arg1); break; // Unregister health application. case MSG_UNREG_HEALTH_APP: unregisterApp(); break; // Connect channel. case MSG_CONNECT_CHANNEL: mDevice = (BluetoothDevice) msg.obj; connectChannel(); break; // Disconnect channel. case MSG_DISCONNECT_CHANNEL: mDevice = (BluetoothDevice) msg.obj; disconnectChannel(); break; default: super.handleMessage(msg); } } } final Messenger mMessenger = new Messenger(new IncomingHandler()); /** * Make sure Bluetooth and health profile are available on the Android device. Stop service * if they are not available. */ @SuppressLint("ShowToast") @Override public void onCreate() { super.onCreate(); Log.e("TEST", "HDPService Created"); mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); if (mBluetoothAdapter == null || !mBluetoothAdapter.isEnabled()) { // Bluetooth adapter isn't available. The client of the service is supposed to // verify that it is available and activate before invoking this service. stopSelf(); return; } if (!mBluetoothAdapter.getProfileProxy(this, mBluetoothServiceListener, BluetoothProfile.HEALTH)) { Toast.makeText(this, "bluetooth_health_profile_not_available", Toast.LENGTH_LONG); stopSelf(); return; } } @Override public int onStartCommand(Intent intent, int flags, int startId) { Log.d(TAG, "BluetoothHDPService is running."); return START_STICKY; } @Override public IBinder onBind(Intent intent) { return mMessenger.getBinder(); }; // Register health application through the Bluetooth Health API. private void registerApp(int dataType) { Log.e(TAG, "registerApp()"); mBluetoothHealth.registerSinkAppConfiguration(TAG, dataType, mHealthCallback); } // Unregister health application through the Bluetooth Health API. private void unregisterApp() { Log.e(TAG, "unregisterApp()"); mBluetoothHealth.unregisterAppConfiguration(mHealthAppConfig); } // Connect channel through the Bluetooth Health API. private void connectChannel() { Log.i(TAG, "connectChannel()"); mBluetoothHealth.connectChannelToSource(mDevice, mHealthAppConfig); } // Disconnect channel through the Bluetooth Health API. private void disconnectChannel() { Log.i(TAG, "disconnectChannel()"); mBluetoothHealth.disconnectChannel(mDevice, mHealthAppConfig, mChannelId); } // Callbacks to handle connection set up and disconnection clean up. private final BluetoothProfile.ServiceListener mBluetoothServiceListener = new BluetoothProfile.ServiceListener() { public void onServiceConnected(int profile, BluetoothProfile proxy) { if (profile == BluetoothProfile.HEALTH) { mBluetoothHealth = (BluetoothHealth) proxy; if (Log.isLoggable(TAG, Log.DEBUG)) Log.d(TAG, "onServiceConnected to profile: " + profile); } } public void onServiceDisconnected(int profile) { if (profile == BluetoothProfile.HEALTH) { mBluetoothHealth = null; } } }; private final BluetoothHealthCallback mHealthCallback = new BluetoothHealthCallback() { // Callback to handle application registration and unregistration events. The service // passes the status back to the UI client. public void onHealthAppConfigurationStatusChange(BluetoothHealthAppConfiguration config, int status) { if (status == BluetoothHealth.APP_CONFIG_REGISTRATION_FAILURE) { mHealthAppConfig = null; sendMessage(STATUS_HEALTH_APP_REG, RESULT_FAIL); } else if (status == BluetoothHealth.APP_CONFIG_REGISTRATION_SUCCESS) { mHealthAppConfig = config; sendMessage(STATUS_HEALTH_APP_REG, RESULT_OK); } else if (status == BluetoothHealth.APP_CONFIG_UNREGISTRATION_FAILURE || status == BluetoothHealth.APP_CONFIG_UNREGISTRATION_SUCCESS) { sendMessage(STATUS_HEALTH_APP_UNREG, status == BluetoothHealth.APP_CONFIG_UNREGISTRATION_SUCCESS ? RESULT_OK : RESULT_FAIL); } } // Callback to handle channel connection state changes. // Note that the logic of the state machine may need to be modified based on the HDP device. // When the HDP device is connected, the received file descriptor is passed to the // ReadThread to read the content. public void onHealthChannelStateChange(BluetoothHealthAppConfiguration config, BluetoothDevice device, int prevState, int newState, ParcelFileDescriptor fd, int channelId) { Log.e("Read Thread", "Start If Statements"); Log.e("Read Thread", "prevState: " + prevState); Log.e("Read Thread", "newState: " + newState); if (Log.isLoggable(TAG, Log.DEBUG)) Log.d(TAG, String.format("prevState\t%d ----------> newState\t%d", prevState, newState)); // if (prevState != BluetoothHealth.STATE_CHANNEL_CONNECTED && // newState == BluetoothHealth.STATE_CHANNEL_CONNECTED) { if (prevState == BluetoothHealth.STATE_CHANNEL_DISCONNECTED && newState == BluetoothHealth.STATE_CHANNEL_CONNECTED) { if (config.equals(mHealthAppConfig)) { mChannelId = channelId; sendMessage(STATUS_CREATE_CHANNEL, RESULT_OK); Log.e("Read Thread", "Read Start 1"); (new ReadThread(fd)).start(); } else { Log.e("Read Thread", "Status Create Channel Fail 1"); sendMessage(STATUS_CREATE_CHANNEL, RESULT_FAIL); } } else if (prevState == BluetoothHealth.STATE_CHANNEL_CONNECTING && newState == BluetoothHealth.STATE_CHANNEL_DISCONNECTED) { sendMessage(STATUS_CREATE_CHANNEL, RESULT_FAIL); Log.e("Read Thread", "Status Create Channel Fail 2"); } else if (newState == BluetoothHealth.STATE_CHANNEL_DISCONNECTED) { if (config.equals(mHealthAppConfig)) { sendMessage(STATUS_DESTROY_CHANNEL, RESULT_OK); Log.e("Read Thread", "Status Disconnect OK"); } else { sendMessage(STATUS_DESTROY_CHANNEL, RESULT_FAIL); Log.e("Read Thread", "Status Disconnect FAIL"); } }else if (prevState == BluetoothHealth.STATE_CHANNEL_CONNECTING && newState == BluetoothHealth.STATE_CHANNEL_CONNECTED) { if (config.equals(mHealthAppConfig)) { mChannelId = channelId; sendMessage(STATUS_CREATE_CHANNEL, RESULT_OK); Log.e("Read Thread", "Read Start 2"); (new ReadThread(fd)).start(); } else { sendMessage(STATUS_CREATE_CHANNEL, RESULT_FAIL); Log.e("Read Thread", "Status Create Channel Fail 3"); } } } }; // Sends an update message to registered UI client. private void sendMessage(int what, int value) { if (mClient == null) { Log.d(TAG, "No clients registered."); return; } try { mClient.send(Message.obtain(null, what, value, 0)); } catch (RemoteException e) { // Unable to reach client. e.printStackTrace(); } } public String byte2hex(byte[] b){ // String Buffer can be used instead String hs = ""; String stmp = ""; for (int n = 0; n < b.length; n++){ stmp = (java.lang.Integer.toHexString(b[n] & 0XFF)); if (stmp.length() == 1){ hs = hs + "0" + stmp; } else{ hs = hs + stmp; } if (n < b.length - 1){ hs = hs + ""; } } return hs; } public static int byteToUnsignedInt(byte b) { return 0x00 << 24 | b & 0xff; } public static int toInt(byte[] bytes) { int ret = 0; for (int i=0; i<4 && i<bytes.length; i++) { ret <<= 8; ret |= (int)bytes[i] & 0xFF; } return ret; } // Thread to read incoming data received from the HDP device. This sample application merely // reads the raw byte from the incoming file descriptor. The data should be interpreted using // a health manager which implements the IEEE 11073-xxxxx specifications. private class ReadThread extends Thread { private ParcelFileDescriptor mFd; public ReadThread(ParcelFileDescriptor fd) { super(); mFd = fd; } @Override public void run() { Log.e("TEST", "Read Data 1"); FileInputStream fis = new FileInputStream(mFd.getFileDescriptor()); final byte data[] = new byte[200]; Log.i(TAG, "Read Data 2"); try { while(fis.read(data) > -1) { // At this point, the application can pass the raw data to a parser that // has implemented the IEEE 11073-xxxxx specifications. Instead, this sample // simply indicates that some data has been received. Log.i(TAG, "INBOUND"); String test = byte2hex(data); Log.i(TAG, test); if (data[0] != (byte) 0x00) { if(data[0] == (byte) 0xE2){ Log.i(TAG, "E2 - Association Request"); count = 1; (new WriteThread(mFd)).start(); try { sleep(100); } catch (InterruptedException e) { e.printStackTrace(); } count = 2; (new WriteThread(mFd)).start(); } else if (data[0] == (byte)0xE7){ Log.i(TAG, "E7 - Data Given"); if(data[3] != (byte)0xda){ invoke[0] = data[6]; invoke[1] = data[7]; Log.i(TAG, "E7 - Reading?"); ByteBuffer sys = ByteBuffer.allocate(2); sys.order(ByteOrder.LITTLE_ENDIAN); sys.put(data[45]); sys.put(data[46]); short sysVal = sys.getShort(0); Log.i(TAG, " Sys - "+sysVal); ByteBuffer dia = ByteBuffer.allocate(2); dia.order(ByteOrder.LITTLE_ENDIAN); dia.put(data[47]); dia.put(data[48]); short diaVal = dia.getShort(0); Log.i(TAG, " Dia - "+diaVal); sendMessage(9919, diaVal); sendMessage(9920, sysVal); for(int i=0; i<(data.length-2); i++){ ByteBuffer bb = ByteBuffer.allocate(2); bb.order(ByteOrder.LITTLE_ENDIAN); bb.put(data[i]); bb.put(data[i+1]); short shortVal = bb.getShort(0); Log.i(TAG, i+" Short Val - "+shortVal); } count = 3; //set invoke id so get correct response (new WriteThread(mFd)).start(); } //parse data!! } else if (data[0] == (byte) 0xE4) { //count = 4; // (new WriteThread(mFd)).start(); } //zero out the data for (int i = 0; i < data.length; i++){ data[i] = (byte) 0x00; } } sendMessage(STATUS_READ_DATA, 0); } } catch(IOException ioe) {} if (mFd != null) { try { mFd.close(); } catch (IOException e) { /* Do nothing. */ } } sendMessage(STATUS_READ_DATA_DONE, 0); } } private class WriteThread extends Thread { private ParcelFileDescriptor mFd; public WriteThread(ParcelFileDescriptor fd) { super(); mFd = fd; } @Override public void run() { FileOutputStream fos = new FileOutputStream(mFd.getFileDescriptor()); final byte data_AR[] = new byte[] { (byte) 0xE3, (byte) 0x00, (byte) 0x00, (byte) 0x2C, (byte) 0x00, (byte) 0x00, (byte) 0x50, (byte) 0x79, (byte) 0x00, (byte) 0x26, (byte) 0x80, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x80, (byte) 0x00, (byte) 0x80, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x80, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x08, //bt add for phone, can be automate in the future (byte) 0x3C, (byte) 0x5A, (byte) 0x37, (byte) 0xFF, (byte) 0xFE, (byte) 0x95, (byte) 0xEE, (byte) 0xE3, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00}; final byte data_DR[] = new byte[] { (byte) 0xE7, (byte) 0x00, (byte) 0x00, (byte) 0x12, (byte) 0x00, (byte) 0x10, (byte) 0x00, (byte) 0x24, (byte) 0x02, (byte) 0x01, (byte) 0x00, (byte) 0x0A, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x0D, (byte) 0x1D, (byte) 0x00, (byte) 0x00 }; final byte get_MDS[] = new byte[] { (byte) 0xE7, (byte) 0x00, (byte) 0x00, (byte) 0x0E, (byte) 0x00, (byte) 0x0C, (byte) 0x00, (byte) 0x24, (byte) 0x01, (byte) 0x03, (byte) 0x00, (byte) 0x06, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00 }; final byte data_RR[] = new byte[] { (byte) 0xE5, (byte) 0x00, (byte) 0x00, (byte) 0x02, (byte) 0x00, (byte) 0x00 }; // final byte data_RRQ[] = new byte[] { (byte) 0xE4, (byte) 0x00, // (byte) 0x00, (byte) 0x02, // (byte) 0x00, (byte) 0x00 }; // // final byte data_ABORT[] = new byte[] { (byte) 0xE6, (byte) 0x00, // (byte) 0x00, (byte) 0x02, // (byte) 0x00, (byte) 0x00 }; try { Log.i(TAG, String.valueOf(count)); if (count == 1) { fos.write(data_AR); Log.i(TAG, "Association Responded!"); } else if (count == 2) { fos.write(get_MDS); Log.i(TAG, "Get MDS object attributes!"); } else if (count == 3) { fos.write(data_DR); Log.i(TAG, "Data Responsed!"); } else if (count == 4) { fos.write(data_RR); Log.i(TAG, "Data Released!"); } } catch(IOException ioe) {} } } }讨论(0)
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