Commit 0a6bf0aecbb2410d3f1e3e90a7e1a0b46f842683
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cambios jose
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index.js
| 1 | // Include Nodejs' net module. | 1 | // Include Nodejs' net module. |
| 2 | const Net = require('net'); | 2 | const Net = require('net'); |
| 3 | const converter = require('hex2dec'); | 3 | const converter = require('hex2dec'); |
| 4 | // The port number and hostname of the server. | 4 | // The port number and hostname of the server. |
| 5 | const port = 10001; | 5 | const port = 10001; |
| 6 | const host = '190.15.193.76'; | 6 | const host = 'fipdebo.ddns.net'; |
| 7 | var respuesta = ''; | 7 | var respuesta = ''; |
| 8 | 8 | ||
| 9 | // Create a new TCP client. | 9 | // Create a new TCP client. |
| 10 | const client = new Net.Socket(); | 10 | const client = new Net.Socket(); |
| 11 | // Send a connection request to the server. | 11 | // Send a connection request to the server. |
| 12 | client.connect({ port: port, host: host }, function() { | 12 | client.connect({ port: port, host: host }, function() { |
| 13 | // If there is no error, the server has accepted the request and created a new | 13 | // If there is no error, the server has accepted the request and created a new |
| 14 | // socket dedicated to us. | 14 | // socket dedicated to us. |
| 15 | console.log('TCP connection established with the server.'); | 15 | console.log('TCP connection established with the server.'); |
| 16 | var code = String.fromCharCode(01); | 16 | var code = String.fromCharCode(01); |
| 17 | // The client can now send data to the server by writing to its socket. | 17 | // The client can now send data to the server by writing to its socket. |
| 18 | console.info(client.write(code + 'i201TT')); | 18 | console.info(client.write(code + 'i20100')); |
| 19 | }); | 19 | }); |
| 20 | 20 | ||
| 21 | // The client can also receive data from the server by reading from its socket. | 21 | // The client can also receive data from the server by reading from its socket. |
| 22 | client.on('data', function(chunk) { | 22 | client.on('data', function(chunk) { |
| 23 | var data = chunk.toString('utf8'); | 23 | var data = chunk.toString('utf8'); |
| 24 | console.log('response', data); | ||
| 24 | if (respuesta) { | 25 | if (respuesta) { |
| 25 | respuesta += data; | 26 | respuesta += data; |
| 26 | } else { | 27 | } else { |
| 27 | var respuesta = data; | 28 | var respuesta = data; |
| 28 | } | 29 | } |
| 29 | 30 | ||
| 30 | if (data[data.length - 1].charCodeAt(0) == 3 && respuesta.slice(1,5) == 'i201') { | 31 | if (data[data.length - 1].charCodeAt(0) == 3) { |
| 31 | var indice = 0; | 32 | var indice = 0; |
| 32 | var fecha = new Date(); | 33 | var fecha = new Date(); |
| 33 | var respuesta = respuesta.slice(17, respuesta.length); | 34 | var respuesta = respuesta.slice(17, respuesta.length); |
| 34 | respuesta = respuesta.split('&&')[0]; | 35 | respuesta = respuesta.split('&&')[0]; |
| 35 | console.info(procesar(respuesta)); | 36 | console.info(procesar(respuesta)); |
| 36 | } | 37 | } |
| 37 | 38 | ||
| 38 | // Request an end to the connection after the data has been received. | 39 | // Request an end to the connection after the data has been received. |
| 39 | client.end(); | 40 | client.end(); |
| 40 | }); | 41 | }); |
| 41 | 42 | ||
| 42 | client.on('end', function() { | 43 | client.on('end', function() { |
| 43 | console.log('Requested an end to the TCP connection'); | 44 | console.log('Requested an end to the TCP connection'); |
| 44 | }); | 45 | }); |
| 45 | 46 | ||
| 46 | function procesar(respuesta) { | 47 | function procesar(respuesta) { |
| 47 | var tanque = { | 48 | var tanque = { |
| 48 | tanque: respuesta.slice(0,2), | 49 | tanque: respuesta.slice(0,2), |
| 49 | producto: respuesta.slice(2,3), | 50 | producto: respuesta.slice(2,3), |
| 50 | estado: respuesta.slice(3,7), | 51 | estado: respuesta.slice(3,7), |
| 51 | campos: [] | 52 | campos: [] |
| 52 | } | 53 | } |
| 53 | 54 | ||
| 54 | var campos = parseInt(respuesta.slice(7,9)); | 55 | var campos = parseInt(respuesta.slice(7,9)); |
| 55 | 56 | ||
| 56 | var inicio = 9; | 57 | var inicio = 9; |
| 57 | var fin = 17; | 58 | var fin = 17; |
| 58 | 59 | ||
| 59 | for (var i = 0; i < campos; i++) { | 60 | for (var i = 0; i < campos; i++) { |
| 60 | tanque.campos.push(procesarCampo(respuesta.slice(inicio,fin))); | 61 | tanque.campos.push(procesarCampo(respuesta.slice(inicio,fin))); |
| 61 | inicio += 8; | 62 | inicio += 8; |
| 62 | fin += 8; | 63 | fin += 8; |
| 63 | } | 64 | } |
| 64 | 65 | ||
| 65 | if ((fin - 8) < respuesta.length) { | 66 | if ((fin - 8) < respuesta.length) { |
| 66 | var respuestas = procesar(respuesta.slice((fin - 8), respuesta.length)); | 67 | var respuestas = procesar(respuesta.slice((fin - 8), respuesta.length)); |
| 67 | } else { | 68 | } else { |
| 68 | var respuestas = []; | 69 | var respuestas = []; |
| 69 | } | 70 | } |
| 70 | 71 | ||
| 71 | respuestas.unshift(tanque); | 72 | respuestas.unshift(tanque); |
| 72 | return respuestas; | 73 | return respuestas; |
| 73 | } | 74 | } |
| 74 | 75 | ||
| 75 | function procesarCampo(campo) { | 76 | function procesarCampo(campo) { |
| 76 | var proceso = ''; | 77 | var proceso = ''; |
| 77 | 78 | ||
| 78 | if (parseInt(campo) == 0) { | 79 | if (parseInt(campo) == 0) { |
| 79 | return 0; | 80 | return 0; |
| 80 | } | 81 | } |
| 81 | 82 | ||
| 82 | for (var i = 0; i < campo.length; i++) { | 83 | for (var i = 0; i < campo.length; i++) { |
| 83 | proceso += hexToBinary(campo[i]); | 84 | proceso += hexToBinary(campo[i]); |
| 84 | } | 85 | } |
| 85 | 86 | ||
| 86 | var signo = proceso[0] == 0 ? 1 : -1; | 87 | var signo = proceso[0] == 0 ? 1 : -1; |
| 87 | var exponente = parseInt(proceso.slice(1, 9), 2); | 88 | var exponente = parseInt(proceso.slice(1, 9), 2); |
| 88 | var mantiza = parseInt(proceso.slice(9, 32), 2); | 89 | var mantiza = parseInt(proceso.slice(9, 32), 2); |
| 89 | 90 | ||
| 90 | return signo * Math.pow(2, exponente - 127) * (1 + (mantiza / 8388608)); | 91 | return signo * Math.pow(2, exponente - 127) * (1 + (mantiza / 8388608)); |
| 91 | } | 92 | } |
| 92 | 93 | ||
| 93 | function hexToBinary(digito) { | 94 | function hexToBinary(digito) { |
| 94 | var binario = parseInt(digito, 16).toString(2); | 95 | var binario = parseInt(digito, 16).toString(2); |
| 95 | 96 | ||
| 96 | while (binario.length < 4) { | 97 | while (binario.length < 4) { |
| 97 | binario = '0' + binario; | 98 | binario = '0' + binario; |
| 98 | } | 99 | } |
| 99 | 100 | ||
| 100 | return binario; | 101 | return binario; |
| 101 | } | 102 | } |