CN1190542C

CN1190542C - Network roll washing machine

Info

Publication number: CN1190542C
Application number: CNB001239503A
Authority: CN
Inventors: 张汉奇; 张金家; 刘振宇
Original assignee: Haier Group Corp; Qingdao Refrigeration Technology Institute
Current assignee: Haier Group Corp; Qingdao Haier Intelligent Home Appliance Technology Co Ltd
Priority date: 2000-10-16
Filing date: 2000-10-16
Publication date: 2005-02-23
Anticipated expiration: 2020-10-16
Also published as: CN1349013A

Abstract

The invention discloses a network drum washing machine, which organically combines the traditional drum washing machine with intelligent network technology, so that the drum washing machine and external network equipment can perform two-way communication functions, and can obtain information on the external network equipment on the drum washing machine. Information. The advantages of the present invention are that the drum washing machine can be remotely controlled by means of the network; the control program of the drum washing machine can be updated from the manufacturer to upgrade its function; the working status of the drum washing machine can be checked at any time; Feedback to the maintenance department of the manufacturer to make maintenance more accurate and timely.

Description

Network drum washing machine

本发明涉及一种滚筒洗衣机，更具体地说是一种具有网络功能的滚筒洗衣机。The invention relates to a drum washing machine, more specifically to a drum washing machine with network function.

随着现代人生活节奏的加快，对家用电器功能上的需求越来越高，而现有的滚筒洗衣机仍有以下的不足之处：如它的设置必须现场直接凭按键操作，不能实现远程控制，对出现的故障也不能立即反馈至维修部门以进行有针对性的维护。有时消费者出门在外，则无法了解洗衣机的工作状态。With the acceleration of modern people's life rhythm, the demand for the functions of household appliances is getting higher and higher, but the existing drum washing machine still has the following deficiencies: for example, its setting must be directly operated by buttons on site, and remote control cannot be realized. , The failures that occur cannot be immediately fed back to the maintenance department for targeted maintenance. Sometimes consumers can't understand the working status of the washing machine when they are away from home.

针对上述问题，本发明的目的是提供一种能实现远程控制及信息传输的网络滚筒洗衣机。In view of the above problems, the object of the present invention is to provide a network drum washing machine capable of remote control and information transmission.

本发明的技术方案是将传统的滚筒洗衣机和智能网络技术有机地结合，使滚筒洗衣机与外部网络设备能够进行双向的通讯功能，并可在滚筒洗衣机上获取外部网络设备上的信息。The technical solution of the present invention is to organically combine the traditional drum washing machine with intelligent network technology, so that the drum washing machine can perform two-way communication with external network equipment, and can obtain information on the external network equipment on the drum washing machine.

本发明的优点是可借助网络对滚筒洗衣机实现远程控制；可从生产厂家更新滚筒洗衣机的控制程序，使其功能得以升级；可随时查询滚筒洗衣机的工作状态；可将滚筒洗衣机运行中的故障状态反馈到生产厂家的维修部门，使维修更准确、及时。The advantages of the present invention are that the drum washing machine can be remotely controlled by means of the network; the control program of the drum washing machine can be updated from the manufacturer to upgrade its functions; the working status of the drum washing machine can be checked at any time; Feedback to the maintenance department of the manufacturer to make maintenance more accurate and timely.

下面结合附图并通过实施例进一步说明本发明。The present invention will be further described below in conjunction with the accompanying drawings and examples.

图1为本发明的原理框图。Fig. 1 is a functional block diagram of the present invention.

图2为本实用新型通讯和显示部分的电路原理图。Fig. 2 is the circuit schematic diagram of the communication and display part of the utility model.

本发明包括一现有滚筒洗衣机5，其特征在于它还包括中央处理器(CPU)1及固化在其中的程序、液晶显示单元2、通讯接口电路3和电源电路4。The present invention includes an existing drum washing machine 5, which is characterized in that it also includes a central processing unit (CPU) 1 and programs solidified therein, a liquid crystal display unit 2, a communication interface circuit 3 and a power supply circuit 4.

其中，中央处理器(CPU)1采用型号为M38027E8SP的芯片，所有程序指令都是由它来执行，由它来控制外部单元执行何种动作。Wherein, the central processing unit (CPU) 1 adopts a chip whose model is M38027E8SP, and all program instructions are executed by it, and it controls what actions the external units perform.

电源电路4可以为电路板和显示器的背光源供电。图中，ACIN为交流进线，变压器的副边电压为7V。交流电压经RF整流后，为7V×0.9＝6.3V的直流电压，该直流电压经C1、C2滤波后，送三端稳压器7805的输入端，7805的输出为稳定的+5V电压，给电路板供电；此外，经RF整流后的6.3V直流电压还用作为显示器的背光源供电，该电源的接通与否，由程序通过CPU上的P1.5口控制，当P1.5口输出高电平时，继电器RY得电，将其触点闭合，使背光源发光；当P1.5口输出为低电平时，继电器RY失电，其触点打开，背光源则不发光；背光源的使用，使得网络滚筒洗衣机无论是在白天，还是在夜晚，显示器上都能显示出清晰的文字和图象。The power supply circuit 4 can supply power for the circuit board and the backlight source of the display. In the figure, ACIN is the AC incoming line, and the secondary voltage of the transformer is 7V. After the AC voltage is rectified by RF, it becomes a DC voltage of 7V×0.9=6.3V. After the DC voltage is filtered by C1 and C2, it is sent to the input terminal of the three-terminal voltage regulator 7805. The output of the 7805 is a stable +5V voltage, which is given to Circuit board power supply; in addition, the 6.3V DC voltage after RF rectification is also used as power supply for the backlight of the display. Whether the power supply is connected or not is controlled by the program through the P1.5 port on the CPU. When the level is high, the relay RY is energized, its contacts are closed, and the backlight is illuminated; when the output of P1. In use, the network drum washing machine can display clear text and images on the monitor no matter it is in the daytime or at night.

液晶显示单元2包括液晶显示器和液晶显示控制器，网络滚筒洗衣机上采用点阵液晶显示器，其控制器的1脚FG接外壳，必须和大地相连，以保证有效屏蔽，使显示不受外界干扰；2脚VSS为电源公共端；3脚VDD为+5V电源端；4脚VEE为-10V电源端；5脚WR为写控制端，和CPU的58脚P3.6口相连；6脚RD为读控制端，和CPU的57脚P3.7口相连，WR、RD分别受CPU的控制，共同完成对液晶显示器的读、写操作；7、8脚的CE、C/D为液晶显示器的片选控制信号，分别和CPU的P1.1、P1.2口相连；9、20脚为空端子，不连线；10脚为复位信号RESET端，和CPU的45脚P1.3口相连；液晶显示器的11～18脚分别为其数据总线D0～D7，分别和CPU的P0.0～P0.7口连接，完成显示器上显示内容的数据传送；ES与整个系统的电源公共端连接，由此完成对网络滚筒洗衣机人机交互界面的显示控制。The liquid crystal display unit 2 includes a liquid crystal display and a liquid crystal display controller. A dot-matrix liquid crystal display is used on the network drum washing machine. Pin 1 of the controller, FG, is connected to the shell and must be connected to the ground to ensure effective shielding and prevent the display from external interference; The 2-pin VSS is the common terminal of the power supply; the 3-pin VDD is the +5V power supply terminal; the 4-pin VEE is the -10V power supply terminal; the 5-pin WR is the write control terminal, which is connected to the 58-pin P3.6 port of the CPU; the 6-pin RD is the read terminal The control terminal is connected to the 57-pin P3.7 port of the CPU. WR and RD are respectively controlled by the CPU to jointly complete the read and write operations of the LCD; CE and C/D of pins 7 and 8 are the chip selection of the LCD The control signal is connected to the P1.1 and P1.2 ports of the CPU respectively; the 9 and 20 pins are empty terminals, not connected; the 10 pin is the reset signal RESET terminal, which is connected to the 45 pin P1.3 port of the CPU; the liquid crystal display The 11~18 pins are the data buses D0~D7 respectively, which are respectively connected with the P0.0~P0.7 ports of the CPU to complete the data transmission of the displayed content on the display; Display control of human-computer interaction interface of network drum washing machine.

为了使滚筒洗衣机实现网络功能，在滚筒洗衣机电控系统与外部网络环境之间增加通讯接口电路3，并通过串口控制端TXD和RXD与中央处理器1相连。其中，TXD为信号接收端，而RXD为信号发送端；为了保证网络滚筒洗衣机电路的安全，在通讯接口电路3中还设置了两路光耦合隔离电路ISO1、ISO2，这样网络滚筒洗衣机的电控系统就和外部网络的电系统隔离开来，两个电系统之间仅有信号的传递，没有公共的电路硬连接，从而有效防止外界高电压对滚筒洗衣机内部核心电路的毁坏；串行通讯芯片6(型号为MAX232)完成电平转换的功能，将单片机中的TTL电平转换为标准的RS-232通讯电平；将符合要求的通讯信号从串行通讯芯片6的7、8脚引出，接至对外的通讯接口PIN3，从而实现了网络滚筒洗衣机的网络控制功能。In order to realize the network function of the drum washing machine, a communication interface circuit 3 is added between the electric control system of the drum washing machine and the external network environment, and is connected to the central processing unit 1 through the serial port control terminals TXD and RXD. Among them, TXD is the signal receiving end, and RXD is the signal sending end; in order to ensure the safety of the network drum washing machine circuit, two optical coupling isolation circuits ISO1 and ISO2 are also set in the communication interface circuit 3, so that the electronic control of the network drum washing machine The system is isolated from the electrical system of the external network. There is only signal transmission between the two electrical systems, and there is no common circuit hard connection, so as to effectively prevent the external high voltage from damaging the internal core circuit of the drum washing machine; the serial communication chip 6 (the model is MAX232) completes the function of level conversion, converts the TTL level in the single-chip microcomputer to the standard RS-232 communication level; leads the communication signal that meets the requirements from pins 7 and 8 of the serial communication chip 6, Connect to the external communication interface PIN3, thereby realizing the network control function of the network drum washing machine.

Claims

1. Network drum washing machine, comprising an existing drum washing machine (5), characterized in that it also includes a central processing unit (CPU) (1) and a program solidified therein, a liquid crystal display unit (2), a communication interface circuit (3 ) and a power supply circuit (4), the liquid crystal display unit (2) is connected with the central processing unit (CPU) (1), and the communication interface circuit (3) is connected with the central processing unit (CPU) (1).

2. The network drum washing machine according to claim 1, characterized in that said central processing unit (CPU) (1) can use a chip modeled as M38027E8SP.

3. The network drum washing machine according to claim 1, characterized in that said liquid crystal display unit (2) comprises a liquid crystal display and a liquid crystal display controller.

4. The network drum washing machine according to claim 3, characterized in that pin 1 of the liquid crystal display controller is FG grounded; pin 2 VSS is the power supply common terminal; pin 3 VDD is the power supply terminal of +SV; pin 4 VEE is - 10V power supply terminal; 5-pin WR is the write control terminal, which is connected to the 58-pin P3.6 port of the CPU; 6-pin RD is the read control terminal, which is connected to the 57-pin P3.7 port of the CPU, and WR and RD are controlled by the CPU respectively ; CE and C/D of pins 7 and 8 are the chip selection control signals of the LCD, which are respectively connected to the P1.1 and P1.2 ports of the CPU; pins 9 and 20 are empty terminals, not connected; pin 10 is reset The signal RESET terminal is connected to the 45-pin P1.3 port of the CPU; the 11-18 pins of the liquid crystal display are respectively connected to the data bus D0-D7 of the CPU; the ES is connected to the P0.0-P0.7 port of the CPU; Power common connection.

5. The network drum washing machine according to claim 1, characterized in that said communication interface circuit (3) mainly includes a serial communication chip (6), which passes through the signal receiving terminal TXD and the signal transmitting terminal of the central processing unit RXD is connected with the central processing unit (1); the serial communication chip (6) is connected to the external communication connection PIN3 through pins 7 and 8.

6. The network drum washing machine according to claim 5, characterized in that the serial communication chip (6) adopts a chip of model MAX232.

7. The network drum washing machine according to claim 1 or 5, characterized in that the communication interface circuit (3) also includes two circuits between the serial communication chip (6) and the central processing unit (1) Optical coupling isolation circuit ISO1, ISO2.