TypeError: f.bufferToHexString is not a function

[prawee]

EXPECTING DEVICE MODEL: GT06

I'm a new device connected /home/meteor/gps-tracking-demo/node_modules/gps-tracking/lib/adapters/gt06.js:25 data = f.bufferToHexString(data); ^

TypeError: f.bufferToHexString is not a function at adapter.parse_data (/home/meteor/gps-tracking-demo/node_modules/gps-tracking/lib/adapters/gt06.js:25:14) at Device. (/home/meteor/gps-tracking-demo/node_modules/gps-tracking/lib/device.js:31:34) at Device.emit (events.js:198:13) at Socket. (/home/meteor/gps-tracking-demo/node_modules/gps-tracking/lib/server.js:133:27) at Socket.emit (events.js:203:15) at addChunk (_stream_readable.js:288:12) at readableAddChunk (_stream_readable.js:269:11) at Socket.Readable.push (_stream_readable.js:224:10) at TCP.onStreamRead [as onread] (internal/stream_base_commons.js:94:17)

[vitaeengenharia]

@prawee did you found any solution for this issue?

[wowagenciacriativa]

Use that

`/ Original code: https://github.com/cnberg/gps-tracking-nodejs/blob/master/lib/adapters/gt06.js / f = require('../functions');

exports.protocol = 'GT06'; exports.model_name = 'GT06'; exports.compatible_hardware = ['GT06/supplier'];

var adapter = function (device) { if (!(this instanceof adapter)) { return new adapter(device); }

this.format = {'start': '(', 'end': ')', 'separator': ''}; this.device = device; this.__count = 1;

/ PARSE THE INCOMING STRING FROM THE DECIVE You must return an object with a least: device_id, cmd and type. return device_id: The device_id return cmd: command from the device. return type: login_request, ping, etc. / this.parse_data = function (data) { data = this.bufferToHexString(data); var parts = { 'start': data.substr(0, 4) };

if (parts['start'] == '7878') {
  parts['length'] = parseInt(data.substr(4, 2), 16);
  parts['finish'] = data.substr(6 + parts['length'] * 2, 4);

  parts['protocal_id'] = data.substr(6, 2);

  if (parts['finish'] != '0d0a') {
    throw 'finish code incorrect!';
  }

  if (parts['protocal_id'] == '01') {
    parts['device_id'] = data.substr(8, 16);
    parts.cmd = 'login_request';
    parts.action = 'login_request';
  } else if (parts['protocal_id'] == '12') {
    parts['device_id'] = '';
    parts['data'] = data.substr(8, parts['length'] * 2);
    parts.cmd = 'ping';
    parts.action = 'ping';
  } else if (parts['protocal_id'] == '13') {
    parts['device_id'] = '';
    parts.cmd = 'heartbeat';
    parts.action = 'heartbeat';
  } else if (parts['protocal_id'] == '16' || parts['protocal_id'] == '18') {
    parts['device_id'] = '';
    parts['data'] = data.substr(8, parts['length'] * 2);
    parts.cmd = 'alert';
    parts.action = 'alert';
  } else {
    parts['device_id'] = '';
    parts.cmd = 'noop';
    parts.action = 'noop';
  }
} else {
  parts['device_id'] = '';
  parts.cmd = 'noop';
  parts.action = 'noop';
}
return parts;

}; this.bufferToHexString = function (buffer) { var str = ''; for (var i = 0; i < buffer.length; i++) { if (buffer[i] < 16) { str += '0'; } str += buffer[i].toString(16); } return str; }; this.authorize = function () { //this.device.send("\u0078\u0078\u0005\u0001\u0000\u0001\u00d9\u00dc\u000d\u000a"); //return ; var length = '05'; var protocal_id = '01'; var serial = f.str_pad(this.__count, 4, 0);

var str = length + protocal_id + serial;

this.__count++;

var crc = require('crc');
var crcResult = f.str_pad(crc.crc16(str).toString(16), 4, '0');

var buff = new Buffer('7878' + str + crcResult + '0d0a', 'hex');
var buff = new Buffer('787805010001d9dc0d0a', 'hex');
//发送原始数据
this.device.send(buff);

}; this.zeroPad = function (nNum, nPad) { return ('' + (Math.pow(10, nPad) + nNum)).slice(1); }; this.synchronous_clock = function (msg_parts) {

}; this.receive_heartbeat = function (msg_parts) { var buff = new Buffer('787805130001d9dc0d0a', 'hex'); this.device.send(buff); }; this.run_other = function (cmd, msg_parts) { };

this.request_login_to_device = function () { //@TODO: Implement this. };

this.receive_alarm = function (msg_parts) { console.log(msg_parts); var str = msg_parts.data;

var data = {
  'date': str.substr(0, 12),
  'set_count': str.substr(12, 2),
  'latitude_raw': str.substr(14, 8),
  'longitude_raw': str.substr(22, 8),
  'latitude': this.dex_to_degrees(str.substr(14, 8)),
  'longitude': this.dex_to_degrees(str.substr(22, 8)),
  'speed': parseInt(str.substr(30, 2), 16),
  'orientation': str.substr(32, 4),
  'lbs': str.substr(36, 18),
  'device_info': f.str_pad(parseInt(str.substr(54, 2)).toString(2), 8, 0),
  'power': str.substr(56, 2),
  'gsm': str.substr(58, 2),
  'alert': str.substr(60, 4),
};

data['power_status'] = data['device_info'][0];
data['gps_status'] = data['device_info'][1];
data['charge_status'] = data['device_info'][5];
data['acc_status'] = data['device_info'][6];
data['defence_status'] = data['device_info'][7];
console.log('alert');
console.log(data);

};

this.dex_to_degrees = function (dex) { return parseInt(dex, 16) / 1800000; };

this.get_ping_data = function (msg_parts) { var str = msg_parts.data;

var data = {
  'date': str.substr(0, 12),
  'set_count': str.substr(12, 2),
  'latitude_raw': str.substr(14, 8),
  'longitude_raw': str.substr(22, 8),
  'latitude': this.dex_to_degrees(str.substr(14, 8)),
  'longitude': this.dex_to_degrees(str.substr(22, 8)),
  'speed': parseInt(str.substr(30, 2), 16),
  'orientation': str.substr(32, 4),
  'lbs': str.substr(36, 16),
};

/*
 "device_info"  : f.str_pad(parseInt(str.substr(54,2)).toString(2), 8, 0),
 "power"          : str.substr(56,2),
 "gsm"          : str.substr(58,2),
 "alert"          : str.substr(60,4),
 data['power_status'] = data['device_info'][0];
 data['gps_status'] = data['device_info'][1];
 data['charge_status'] = data['device_info'][5];
 data['acc_status']= data['device_info'][6];
 data['defence_status'] = data['device_info'][7];
 */

console.log(data);

res = {
  latitude: data.latitude,
  longitude: data.longitude,
  speed: data.speed,
  orientation: data.orientation
};
return res;

};

/ SET REFRESH TIME / this.set_refresh_time = function (interval, duration) { }; }; exports.adapter = adapter;`