CN107558095A - A kind of washing machine and guard method with data protection function - Google Patents

Abstract

The invention relates to a washing machine with a data protection function, including a main control unit for controlling the running state of the washing machine, a human-computer interaction unit connected to the main control unit, and a storage unit for storing human-computer interaction information and the running state of the washing machine; A protective case, the protective case is made of heat-insulating and impact-resistant material, and is configured to have a cavity structure; the storage unit is disposed in the cavity of the protective case, and communicated with the main control unit. The washing machine of the present invention has a storage unit for storing user operation information and washing machine operating state information, and the storage unit is set in a protective shell made of heat-insulating and impact-resistant materials, has fireproof and waterproof functions, and can avoid data damage caused by high-intensity accidents The information is lost, and the event can be traced back, so as to realize the functions of finding the cause of the accident and counting the usage.

Description

A washing machine with data protection function and protection method

technical field

The invention relates to a washing machine, in particular to a washing machine with data protection function and a protection method.

Background technique

Washing machines currently on the market do not have the function of recording the specific and detailed usage of the user. Once a failure or accident occurs, it often causes irreversible consequences such as burning the circuit board, so that the specific cause of the failure cannot be known exactly and cannot be traced back. Moreover, at present Washing machine R & D personnel cannot obtain the actual usage conditions of users, including the actual use and operation mode, selection of programs, program operation conditions, abnormal conditions, etc., so that they cannot really obtain information such as user habits and abnormal conditions, which is not conducive to the improvement of research and development; if the washing machine breaks down and The actual operation conditions at that time were not recorded, so it was difficult to restore the truth of the incident and the real cause of the accident could not be found.

In view of this, the present invention is proposed.

Contents of the invention

An object of the present invention is to overcome the disadvantages of the prior art and provide a washing machine with data protection function capable of recording user operation process and washing machine running status information.

Another object of the present invention is to provide a data protection method for a washing machine.

In order to achieve this object, the present invention adopts following technical scheme:

A washing machine with a data protection function, comprising a main control unit for controlling the running state of the washing machine, a human-computer interaction unit connected with the main control unit, and further comprising,

A storage unit that stores human-computer interaction information and the running status of the washing machine;

A protective shell, the protective shell is made of heat-insulating and impact-resistant material, and is configured to have a cavity structure;

The storage unit is arranged in the cavity of the protective case and communicated with the main control unit.

Further, the communication line connecting the storage unit and the main control unit is provided with an optocoupler isolation element, the signal input end of the optocoupler isolation element is connected to the main control unit, and the signal output end is connected to the storage unit.

Further, the main control unit includes a main control chip and has a communication interface; the storage unit includes a storage chip and a rechargeable battery, and the rechargeable battery is connected to the storage chip for supplying power to the storage chip, and the storage chip It has a communication interface matching the main control chip, and the two sets of communication interfaces are connected through aviation connectors and cables.

Further, the main control chip and the storage chip adopt the i2c communication protocol, and the main control chip and the storage chip are connected by three wires, namely: ground wire, clock line and data wire, and are connected to the main control chip and the storage chip accordingly. In the communication interface of the chip.

Further, the main control chip and the storage chip adopt the Uart communication protocol, and the main control chip and the storage chip are connected by three or two wires, which are respectively: a ground wire, a sending wire, a receiving wire or a ground wire, and a data wire, and Correspondingly connected to the communication interface of the main control chip and the storage chip.

Further, the protective case includes a metal shell and a heat insulating layer arranged in the metal shell, the storage unit is set in the heat insulating layer, an opening communicating with the cavity and the outside is provided on the metal shell, and the storage unit The opening is connected with the main control unit or the reading device. The metal casing is of a waterproof structure, and the opening is treated with waterproofing so that water droplets cannot enter the casing.

Further, the human-computer interaction unit includes an operation key and a display device, the operation key is connected to the main control unit for inputting information to the main control unit, the operation key generates a trigger signal to control the storage unit to start working, and the key The operation process is recorded in the storage unit, and the display device is connected with the main control unit to display the working state of the washing machine.

A data protection method for a washing machine, comprising the following steps: when the washing machine is working abnormally or a user operates a button of the washing machine, writing the working status information and/or user operation information of the washing machine into a storage unit.

Further, it also includes, when the washing machine is working normally, supplying power to the rechargeable battery of the storage unit to charge it; when the washing machine is working abnormally, the rechargeable battery is supplying power to the memory chip to maintain the operation of the memory chip.

Further, the storage unit automatically erases old information according to the storage capacity to store new information, and the working status information of the washing machine includes at least the information of the motor speed, temperature and operation mode of the washing machine.

After adopting the technical scheme described in the present invention, bring following beneficial effect:

The washing machine of the present invention has a storage unit for storing user operation information and washing machine running state information, and the storage unit is set in a protective shell made of heat-insulating and impact-resistant materials, has fireproof and waterproof functions, power-off memory function, and has a long storage time , so as to avoid the loss of data information caused by high-intensity accident damage, realize the traceability of events, and realize the functions of finding the cause of the accident and counting the usage status.

Description of drawings

Figure 1: A schematic structural view of the protective case of the present invention after a part of the case is cut;

Fig. 2: the connection schematic diagram of the first embodiment of the present invention;

Fig. 3: the connection schematic diagram of the second embodiment of the present invention;

Among them: 1. Protective shell 2. Metal shell 3. Cavity 4. Socket 5. Rechargeable battery 6. Memory chip 7. Heat insulation layer.

detailed description

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Embodiment one

As shown in Figure 2, a washing machine with data protection function includes a main control unit that controls the running state of the washing machine, and the main control unit is used to control multiple loads, such as motors, solenoid valves, etc.; it is connected to the main control unit The human-computer interaction unit, and the storage unit that stores the human-computer interaction information and the running status of the washing machine. The main control unit can generally be a single-chip microcomputer, and stores the operating program of the washing machine. The operating program of the washing machine can be selected through the human-computer interaction unit, and the main control unit controls the load to execute. The storage method of the storage unit can be based on MCU, EEPROM, and Flash storage technology, and has a power-down memory function, and the stored information can be read later by a proprietary device.

As shown in Figure 1, the washing machine also includes a protective shell 1, the protective shell 1 is made of heat-insulating and impact-resistant materials, has functions such as fire prevention, waterproof, and impact resistance, and is configured to have a cavity structure. Preferably, The shape of the cavity 3 is cylindrical, and the storage unit is arranged in the cavity 3 of the protective case 1 and communicated with the main control unit. In the event of fire or high-intensity accident damage, the protective case 1 can effectively protect the internal storage unit from damage, so as to facilitate reading the stored information in the future to understand the cause of the accident.

Specifically, the main control unit includes a main control chip, which is integrated with a central processing unit and a memory, and has a communication interface; the storage unit includes a storage chip 6 and a rechargeable battery 5, and the rechargeable battery 5 and the storage chip 6 connected to supply power for the storage chip 6, the storage chip 6 is not limited to be powered by the rechargeable battery 5, and can also be set to be directly powered by an external power supply, the storage chip 6 has a communication interface that matches the main control chip, and the two The group communication interfaces are connected through aviation connectors and cables.

The storage chip 6 has a clock function. In the storage chip 6, different address storage spaces are set to store content, for example: a clock storage area, a power button key press storage area, an abnormal alarm storage area, etc., and can be erased and updated .

Preferably, the communication line connecting the storage unit and the main control unit is provided with an optocoupler isolation element, thereby protecting the safety of the storage unit and preventing direct damage caused by high current, etc., the signal input terminal of the optocoupler isolation element It is connected with the main control unit, and the signal output terminal is connected with the storage unit. The optocoupler isolation element makes there is no electrical direct connection between the two isolated circuits, mainly to prevent interference caused by electrical connections, especially between the low-voltage control circuit and the external high-voltage circuit. Specifically, the optocoupler isolation element generally consists of three parts: light emission, light reception, and signal amplification. The input electrical signal drives the light-emitting diode (LED) to emit light of a certain wavelength, which is received by the photodetector to generate a photocurrent, which is further amplified and output. This completes the electrical-optical-electrical conversion, thereby playing the role of input, output, and isolation. Since the input and output of optocoupler isolation components are isolated from each other, and the electrical signal transmission has the characteristics of unidirectionality, it has good electrical insulation ability and anti-interference ability.

The main control chip and the storage chip 6 adopt the i2c communication protocol, and the main control chip and the storage chip 6 are connected by three wires, which are respectively: a ground wire, a clock line and a data wire, and are connected to the main control chip and the storage chip accordingly. In the communication interface of the chip 6, the communication interface is connected by an aviation connector, which has the functions of shockproof, waterproof and dustproof. The general aviation connector is composed of a plug and a socket 4, wherein the plug is also called a free-end aviation plug, and the socket 4 is also called a fixed socket. Aviation plug. The connection and disconnection of the circuit is realized by plugs, sockets 4 and mating and separation.

The protective shell 1 can generally be fixed inside the washing machine, and includes a metal shell 2 and a heat insulation layer 7 disposed inside the metal shell 2 . The metal shell 2 can generally be made by stamping or casting steel parts, and has the characteristics of high strength and impact resistance. A layer of heat insulation layer 7 is arranged inside the metal shell 2 to effectively block heat from the outside of the shell to the inside of the shell. Conduction, the storage unit is arranged in the heat insulation layer 7, effectively avoiding the damage of the storage unit by the external high temperature, the metal shell 2 is provided with an opening connecting the cavity 3 and the outside, and the communication interface of the storage unit is installed on the The opening is connected to the main control unit or the reading device through the opening. The metal housing 2 is a waterproof structure, and the opening is waterproofed so that water droplets cannot enter the housing. For example, multiple sealing can be arranged at the opening. circle to prevent water droplets from entering the chamber 3.

Specifically, the human-computer interaction unit includes an operation button and a display device, the operation button is connected to the main control unit for inputting information to the main control unit, the operation button generates a trigger signal to control the storage unit to start working, and The key operation process is recorded in the storage unit, and the display device is connected with the main control unit to display the working state of the washing machine. When the user operates the key, the main control chip will be triggered and the user operation information will be written into the memory chip 6 through the communication interface, so as to facilitate checking the user's operation record or to help the research and development personnel understand the user's usage habits when an accident occurs.

Embodiment two

As shown in FIG. 3 , the difference between this embodiment and Embodiment 1 is that the communication protocols adopted by the main control chip and the storage chip 6 are different. Specifically, in this embodiment, the main control chip and the storage chip 6 adopt Uart communication protocol, as a low-speed communication protocol, Uart protocol is widely used in various occasions such as the communication field. The main control chip and the memory chip 6 are connected by three or two wires, which are: ground wire, sending wire, receiving wire, etc. Line or ground wire, data line, and correspondingly connected in the communication interface of main control chip and memory chip 6, shown in Fig. 3 is the connection mode adopting ground wire and data line, and described data line can transmit signal bidirectionally.

Other structures in this embodiment are the same as those in Embodiment 1, and will not be described again here.

A data protection method for a washing machine based on the above two embodiments includes the following steps: when the washing machine is working abnormally or when the user operates the buttons of the washing machine, writing the working status information and/or user operation information of the washing machine into the storage unit, the The working status information of the washing machine at least includes information about the rotational speed, temperature and operation mode of the washing machine's motor.

Specifically, when the washing machine is working normally, the storage unit can be directly powered by an external power supply, and at the same time supply power to the rechargeable battery 5 of the storage unit to charge it. running.

When the user operates the washing machine, he can select the operating program of the washing machine by operating the buttons, and activate the storage unit at the same time, so that the storage unit starts to work, and the user's key operation process is recorded and saved. When the washing machine is running, the program and operation it executes The various parameters at the time will be saved to the storage unit synchronously, and the corresponding time point will be recorded. Once the washing machine fails or is damaged, the information in the storage unit can be read through a proprietary device to restore the running process of the washing machine before the damage , to help the staff find out the cause of the accident, so as to avoid the recurrence of the same accident.

Preferably, the storage unit automatically erases old information according to the storage capacity to store new information, and the storage unit automatically erases information exceeding a certain period of time according to the recording time of the information, so as to realize the automatic update of the stored information and ensure the integrity of the stored information. Timeliness.

The invention saves the user's operation process and the running state information of the washing machine by adding a device similar to an airplane black box in the washing machine, and can restore the process of the disaster event by reading the stored information in the event of a fire or high-intensity accident damage , to help find out the cause of the accident and avoid the recurrence of similar accidents, and according to the user's operating habits, it can help the R&D personnel to develop products that are more suitable for the user, which is conducive to product upgrades.

The above is the embodiment of the present invention, and it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, various modifications and improvements can be made, which should also be regarded as the embodiment of the present invention. protected range.

Claims (10)

1. a kind of washing machine with data protection function, including, the main control unit of washing machine running state is controlled, with master control list The man-machine interaction unit of member connection, it is characterised in that：Also include,

Store the memory cell of human-machine interactive information and washing machine running state；

Containment vessel, the containment vessel is made up of adiabatic protecting against shock material, and is arranged to holding cavity structure；

The memory cell is arranged in the cavity volume of containment vessel, and is communicated to connect with main control unit.

A kind of 2. washing machine with data protection function according to claim 1, it is characterised in that：The memory cell The communication line being connected with main control unit is provided with light-coupled isolation element, the signal input part of the light-coupled isolation element and master Unit connection is controlled, signal output part is connected with memory cell.

A kind of 3. washing machine with data protection function according to claim 1 or 2, it is characterised in that：The master control Unit includes, main control chip, and has communication interface；The memory cell includes, storage chip and rechargeable battery, the charging Battery is connected with storage chip, and for being powered for storage chip, there is the storage chip communication to match with main control chip to connect Mouthful, two groups of communication interfaces are connected by Aviation Connector and cable.

A kind of 4. washing machine with data protection function according to claim 3, it is characterised in that：The main control chip I2c communications protocol is used with storage chip, is connected between main control chip and storage chip by three wires, is respectively：Ground wire, Clock line and data wire, and correspondingly access in the communication interface of main control chip and storage chip.

A kind of 5. washing machine with data protection function according to claim 3, it is characterised in that：The main control chip Uart communication protocols are used with storage chip, are connected between main control chip and storage chip by three or two wires, respectively For：Ground wire, send line, receive line or ground wire, data wire, and correspondingly accessing the communication interface of main control chip and storage chip In.

A kind of 6. washing machine with data protection function according to claim 1, it is characterised in that：The containment vessel bag Include, metal shell, the thermal insulation layer being arranged in metal shell, the memory cell is arranged in thermal insulation layer, on metal shell Cavity volume and outside opening are communicated with, memory cell is connected by the opening with main control unit or reading equipment, the metal Housing is waterproof construction, and opening does water-proofing treatment.

A kind of 7. washing machine with data protection function according to claim 1, it is characterised in that：The man-machine interaction Unit includes, Cao Zuoanjian and display device, and the Cao Zuoanjian is connected to input information to main control unit with main control unit, The display device is connected with main control unit to show the working condition of washing machine.

A kind of 8. data guard method of washing machine as described in claim any one of 1-7, it is characterised in that：Including following step Suddenly, when washing machine operation irregularity or user operate washing machine key-press, the work state information of washing machine and/or user are operated Information is write to memory cell.

9. data guard method according to claim 8, it is characterised in that：Also include, in washing machine normal work, to Memory cell it is rechargeable battery powered, for its charging, in washing machine operation irregularity, rechargeable battery be storage chip power, tie up Hold the operation of storage chip.

10. data guard method according to claim 8, it is characterised in that：The memory cell according to memory capacity from Dynamic erasing old information is to store fresh information, and the work state information of the washing machine comprises at least, the motor speed of washing machine, temperature The information of degree and operational mode.