Project/出口LED屏/led_control_GyBhhy.py

import sys
from concurrent.futures import ThreadPoolExecutor

sys.path.append("..")
# 导入pymysql
import socket
import threading
import time
from datetime import datetime


import google.protobuf.text_format as tf

import message_pb2 as message
from led_protocol import LedProtocol
from led_protocol import font_library


class led_control(threading.Thread):
    def __init__(self, unit, channel,communication, area_list,db):
        threading.Thread.__init__(self)
        self._dispatch_statu = {}
        self.led_communication = communication
        self.area_list = area_list
        self.wait_command_dict = {}
        self.pick_command_dict = {}
        self.db = db
        self.unit = unit
        self.channel = channel
        self.led_protocol = LedProtocol(area_list)
        self._pool = ThreadPoolExecutor(max_workers=11)

    def led_control_init(self):
        unit_char = ""
        if self.unit == 1:
            unit_char = 'A'
        elif self.unit == 2:
            unit_char = 'B'
        elif self.unit == 11:
            unit_char = 'A1'
        elif self.unit == 12:
            unit_char = 'A2'
        elif self.unit == 13:
            unit_char = 'A3'
        elif self.unit == 14:
            unit_char = 'A4'
        elif self.unit == 21:
            unit_char = 'BA1'
        elif self.unit == 22:
            unit_char = 'B2'
        elif self.unit == 23:
            unit_char = 'B3'
        elif self.unit == 24:
            unit_char = 'B4'
        elif self.unit == 25:
            unit_char = 'B5'
        elif self.unit == 31:
            unit_char = 'C1'
        elif self.unit == 32:
            unit_char = 'C2'
        self.send_led_msg(0, unit_char,en_font=font_library["EN32"])

    def receive_dispatch_statu(self, statu, ex, key):
        self._dispatch_statu[key] = statu
    def get_wait_led_string(self,cmd_queue):
        if len(cmd_queue) == 0:
            return ""
        led_show_string = ""
        for num, cmd in zip(range(0, len(cmd_queue)), cmd_queue):
            led_show_string = led_show_string + "%d#%s " % (num + 1, cmd['car_number'])
        led_show_string = "候车:"+led_show_string
        return led_show_string
    def get_pick_led_string(self, cmd_queue):
        if len(cmd_queue) == 0:
            return "等待分配!"
        led_show_string  = cmd_queue[0]['car_number']+" 取车中，请稍候！"
        return led_show_string
    def send_led_msg(self, area_index, input, en_font=font_library["EN16"], cn_font=font_library["CN16"]):
        t_time = datetime.now()
        while (datetime.now() - t_time).microseconds < 30000:
            sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
            sock.settimeout(1)
            try:
                sock.connect((self.led_communication['ip'], self.led_communication['port']))
                sock.send(self.led_protocol.string2bytes(area_index, input, en_font, cn_font))
                print("connected led \033[0:32mSUCCEND\033[m ip:%s   port:%d\nsend msg area_index:%d   msg:%s" % (
                    self.led_communication['ip'], self.led_communication['port'], area_index, input))
                break
            except Exception as e:
                print("connected led \033[0:31mERROR\033[m: %s    time:%s   msg=%s" % (str(e.args),datetime.now(),input))
            time.sleep(0.01)
        sock.close()
        time.sleep(0.1)

    def run(self):
        self.led_control_init()
        while True:
            wait_cmd_dict = self.db.query_pick_command_in_unit_and_statu(self.unit, 0)
            pick_cmd_dict = self.db.query_pick_command_in_unit_and_statu(self.unit, 1)

            if self.wait_command_dict != wait_cmd_dict:
                self.wait_command_dict = wait_cmd_dict
                led_show_string = self.get_wait_led_string(wait_cmd_dict)
                self._pool.submit(self.send_led_msg,1, led_show_string)
            key = "dispatch_%d_statu_port" % self.unit
            if (key in self._dispatch_statu) is False or self._dispatch_statu[key].timeout():
                print('ERROR --- 调度节点未连接----key:%s---------time:%s'%(key,datetime.now()))
            else:
                dispatch_node_statu = message.dispatch_node_statu()
                try:
                    tf.Parse(self._dispatch_statu[key].statu, dispatch_node_statu)
                    if dispatch_node_statu.plc_carrier_status == 0:
                        self.send_led_msg(2, "故障！！！")
                    elif dispatch_node_statu.plc_carrier_status == 4:
                        self.send_led_msg(2, "维护中！")
                    break
                except Exception:
                    print('ERROR --- 调度状态消息解析错误  key:%s   time:%s    message:\n%s'% (key,datetime.now(),self._dispatch_statu[key].statu))
            if self.pick_command_dict != pick_cmd_dict:
                self.pick_command_dict = pick_cmd_dict
                led_show_string = self.get_pick_led_string(pick_cmd_dict)
                self._pool.submit(self.send_led_msg,2, led_show_string)

            time.sleep(1)