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88 lines
3.1 KiB
88 lines
3.1 KiB
8 months ago
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'use strict';
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const Service = require('egg').Service;
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const _ = require("lodash");
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class DealSerialportService extends Service {
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//打开串口
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async openSerialport(SerialPortItem, port) {
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if (SerialPortItem.isOpen) {
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await this.closeSerialport(SerialPortItem, port)
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}
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let returnData = {
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haserror: true,
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msg: `${port}串口打开出错`,
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};
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await SerialPortItem.open(function (error) {
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if (error) {
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returnData.haserror = true
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returnData.msg = `${port}端口打开出错：${error}`
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} else {
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returnData.haserror = false
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returnData.msg = `${port}端口打开成功`
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}
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return returnData
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});
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return returnData
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}
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//关闭串口
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async closeSerialport(SerialPortItem, port) {
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if (SerialPortItem.isOpen) {
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await SerialPortItem.close()
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}
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let returnData = {
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haserror: false,
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msg: `${port}串口关闭成功`,
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};
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return returnData
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}
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//向串口发送指令
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async writeSerialport(SerialPortItem, params) {
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let { ctx } = this
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//每次发送数据停留50ms
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await ctx.service.utils.sleep(50);
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let returnData = {
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haserror: false,
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msg: `${params.ripCom}的指令(${JSON.stringify(params.sendRipId)})发送成功`,
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};
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if (SerialPortItem.isOpen) {
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await this.writeData(SerialPortItem, params)
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} else {
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await this.openSerialport(SerialPortItem, params.ripCom)
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await this.writeData(SerialPortItem, params)
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}
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return returnData
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}
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//写数据后读取
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async writeData(SerialPortItem, params) {
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let { ctx } = this
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let dealData1 = ""
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let dealData2 = ""
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if (typeof (params.sendRipId) === "string") {
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dealData1 = await ctx.service.utils.MODBUS_CRC(params.sendRipId, true, "hex");
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} else if (typeof (params.sendRipId) === "object") {
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dealData1 = await ctx.service.utils.MODBUS_CRC(params.sendRipId[0], true, "hex");
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// dealData2 = await ctx.service.utils.MODBUS_CRC(params.sendRipId[1], true, "hex");
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}
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await SerialPortItem.write(Buffer.from(dealData1)); // 发送字符串
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await ctx.service.utils.sleep(50);
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let readResult1 = await SerialPortItem.read(); // 发送字符串
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if (dealData1 && readResult1) {
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if (dealData1.toString("hex").substring(0, 4) === readResult1.toString("hex").substring(0, 4) && dealData1.toString("hex") !== readResult1.toString("hex")) {
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await ctx.service.home.sendData(params, readResult1, params.isDirct);
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}
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}
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if (dealData2) {
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await ctx.service.utils.sleep(50);
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await SerialPortItem.write(Buffer.from(dealData2)); // 发送字符串
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await ctx.service.utils.sleep(50);
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let readResult2 = await SerialPortItem.read(); // 发送字符串
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if (dealData2 && readResult2) {
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if (dealData2.toString("hex").substring(0, 4) === readResult2.toString("hex").substring(0, 4) && dealData2.toString("hex") !== readResult2.toString("hex")) {
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await ctx.service.home.sendData(params, readResult2, params.isDirct);
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}
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}
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}
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}
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}
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module.exports = DealSerialportService;
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