CN101033579A - Washing machine computer control plate with double-plate structure - Google Patents
Washing machine computer control plate with double-plate structure Download PDFInfo
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- CN101033579A CN101033579A CNA2006100567953A CN200610056795A CN101033579A CN 101033579 A CN101033579 A CN 101033579A CN A2006100567953 A CNA2006100567953 A CN A2006100567953A CN 200610056795 A CN200610056795 A CN 200610056795A CN 101033579 A CN101033579 A CN 101033579A
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Abstract
This invention relates to a computer controlling board of a washing machine including two computer boards, in which, a cable connection mode is applied between the two boards for data exchange, the drive and supply are designed on the control board while the weak electric part of key display and detection is designed on the display board and the two are connected by a cable.
Description
Technical field
The present invention relates to a kind of control circuit of the washing machine, specifically be meant a kind of washing machine computer control panel of double plate structure.
Background technology
The computer plate circuit structure of existing system controlled by computer washing machine is that circuit such as all buttons, demonstration, driving, detection are all designed on a plate as shown in Figure 1.Though this structure is simple concerning complete machine, has many problems, for example:
1) fragile parts mostly are the display part on the plate, only owing to the damage of display part has to change monoblock computer plate, have increased maintenance cost;
2) complex circuit designs, because the drive part circuit is the forceful electric power circuit, and button shows that testing circuit is generally the light current circuit, and forceful electric power and light current are designed on a plate, has increased unsafe factor, has increased fault rate;
3) circuit establishes perhaps that complexity also shows: because the restriction of computer board size, all parts designs make design difficulty increase greatly on a plate, and it is all complicated many that device is put wiring electric parameter consideration etc.;
4) fault rate improves, because more parts device on a plate, makes whole plate fault rate improve.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art, and a kind of drive part and the button of light current circuit washing machine computer control panel of showing the double plate structure that the test section separates with the forceful electric power circuit is provided.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of washing machine computer control panel of double plate structure comprises two computer plates, it is characterized in that: adopt the cable connected mode to carry out exchanges data between the described two computer plates.
The washing machine computer control panel of described double plate structure, it is characterized in that: described two computer plates, a plate wherein is a display board, comprising button part, test section and display part, shows and execution most of laundry flow processing program and test section signal; Another piece plate is a drive plate, is used for load driving and part signal and detects, and is respectively equipped with corresponding connecting interface on two computer plates; The corresponding connecting interface that connects on the described two computer plates of described cable.
The washing machine computer control panel of described double plate structure is characterized in that: described connecting interface comprises power interface and drives signaling interface; Described driving signaling interface comprises that a plurality of standards drive signaling interface and a plurality of backup drives signaling interface;
Described a plurality of standard drives signaling interface and comprises:
The relay drive signal interface, the relay of control computer plate general supply, driving signal is provided by display board, and relay is located on the control panel:
Just changeing the driving signaling interface: the driving signal that the control motor for washer is just changeing, the controllable silicon that drive motors is used are on control panel, and driving signal is provided by display board;
The inversion driving signaling interface: the driving signal of control motor for washer counter-rotating, the controllable silicon that drive motors is used are on control panel, and driving signal is provided by display board;
Water inlet drives signaling interface: the driving signal of control washing machine drainage valve draining, and the controllable silicon that the driving draining valve is used is on control panel, and driving signal is provided by display board;
Draining drives signaling interface: the driving signal of control water intake valve of washing machine water inlet, the controllable silicon that the driving water intaking valve is used are on control panel, and driving signal is provided by display board;
Softening agent drives signaling interface: control washing machine softening agent valve is supplied with the driving signal of softening agent, and the controllable silicon that drives usefulness is on control panel, and driving signal is provided by display board;
Hand rubbing drives signaling interface: the driving signal of control washing machine hand rubbing tractor action, and the controllable silicon that drives usefulness is on control panel, and driving signal is provided by display board.
Described power interface comprises zero line interface and fire-wire interfaces, is outside forceful electric power electric power connection interface; The zero line and the live wire that connect forceful electric power respectively; Comprising:
+ 5V power interface: being control panel provides+power positive end of 5V power supply to display board;
+ 12V power interface: being control panel provides+power positive end of 12V power supply to display board;
The GND interface: being control panel provides the power supply negative terminal of power supply to display board, also is the common reference voltage end that drives signal.
The washing machine computer control panel of described double plate structure, it is characterized in that: described connecting interface is a communication interface, the interface mode of described communication is the interface mode of serial communication, or the pulse communication modes.
The washing machine computer control panel of described double plate structure is characterized in that: the circuit of the described interface mode of being located at the serial communication on the two computer plates connects and comprises: being connected of the single-chip microcomputer on the interface on the display board and the display board: being connected of the single-chip microcomputer on the interface on the drive plate and the drive plate: being connected of the interface on the interface on the drive plate and the display board; Wherein:
Being connected of interface on single-chip microcomputer on interface on single-chip microcomputer on the display board and the display board and the drive plate and the drive plate is identical, the VCC on the VDD connection interface on the single-chip microcomputer; Earth terminal GDN, the interface signal common port DGND of the earth terminal GDN connection interface on the single-chip microcomputer and transmission are negative, reception is negative; The transmission of UART-TXD on the single-chip microcomputer by the resistance connection interface just; The reception of UART-RXD on the single-chip microcomputer by the resistance connection interface just;
The reception that the transmission that the reception of interface is just connecting interface on the drive plate on the described display board just, the transmission of interface is just connecting interface on the drive plate on negative, the display board of the negative transmission that connects interface on the drive plate of the reception of interface on the display board just, on the display board the negative reception that connects interface on the drive plate of the transmission of interface negative.
The washing machine computer control panel of described double plate structure is characterized in that: the described circuit of being located at the pulse communication modes on the two computer plates connects and comprises: being connected of the single-chip microcomputer on the interface on the display board and the display board: being connected of the single-chip microcomputer on the interface on the drive plate and the drive plate: being connected of the interface on the interface on the drive plate and the display board; Wherein:
Being connected of interface on single-chip microcomputer on interface on single-chip microcomputer on the display board and the display board and the drive plate and the drive plate is identical, the VCC on the VDD connection interface on the single-chip microcomputer be power supply just; Earth terminal GDN on the single-chip microcomputer as the earth terminal GDN of power-connection interface and interface signal common port DGND and send negative, receive negative; The transmission of IO1 on the single-chip microcomputer by the resistance connection interface just; The reception of IO2 mouth on the single-chip microcomputer by the resistance connection interface just;
The reception that the transmission that the reception of interface is just connecting interface on the drive plate on the described display board just, the transmission of interface is just connecting interface on the drive plate on negative, the display board of the negative transmission that connects interface on the drive plate of the reception of interface on the display board just, on the display board the negative reception that connects interface on the drive plate of the transmission of interface negative.
The washing machine computer control panel of described double plate structure is characterized in that: the described circuit of being located at the pulse communication modes on the two computer plates connects and comprises: being connected of the single-chip microcomputer on the interface on the display board and the display board: being connected of the single-chip microcomputer on the interface on the drive plate and the drive plate: being connected of the interface on the interface on the drive plate and the display board; Wherein:
Being connected of interface on single-chip microcomputer on interface on single-chip microcomputer on the display board and the display board and the drive plate and the drive plate is identical, the VCC on the VDD connection interface on the single-chip microcomputer be power supply just; Earth terminal GDN on the single-chip microcomputer is as the earth terminal GDN of power-connection interface and interface signal common port DGND and send negative; The bleeder circuit that IO1 on the single-chip microcomputer is constituted by two series resistances connect on the single-chip microcomputer the VDD power supply just, the dividing point of two series resistances connects transistor base, the emitter stage of triode is just connecing power supply, and the transmission of the colelctor electrode of triode by the current-limiting resistance connection interface just; The bleeder circuit that IO2 mouth on the single-chip microcomputer is constituted by two series resistances connect on the single-chip microcomputer the VDD power supply just, connect the output of photoelectric isolating device between the dividing point of two series resistances and the power-, the two ends of the light emitting diode of the photoelectric isolating device reception of connection interface are respectively born and are just received;
The reception that the transmission that the reception of interface is just connecting interface on the drive plate on the described display board just, the transmission of interface is just connecting interface on the drive plate on negative, the display board of the negative transmission that connects interface on the drive plate of the reception of interface on the display board just, on the display board the negative reception that connects interface on the drive plate of the transmission of interface negative.
The washing machine computer control panel of described double plate structure is characterized in that: the described circuit of being located at the serial communication mode on the two computer plates connects and comprises: being connected of the single-chip microcomputer on the interface on the display board and the display board: being connected of the single-chip microcomputer on the interface on the drive plate and the drive plate: being connected of the interface on the interface on the drive plate and the display board; Wherein:
Being connected of interface on single-chip microcomputer on interface on single-chip microcomputer on the display board and the display board and the drive plate and the drive plate is identical, the VCC on the VDD connection interface on the single-chip microcomputer be power supply just; Earth terminal GDN on the single-chip microcomputer is as the earth terminal GDN of power-connection interface and interface signal common port DGND and send negative; The bleeder circuit that UART-TXD on the single-chip microcomputer is constituted by two series resistances connect on the single-chip microcomputer the VDD power supply just, the dividing point of two series resistances connects transistor base, the emitter stage of triode is just connecing power supply, and the transmission of the colelctor electrode of triode by the current-limiting resistance connection interface just; The bleeder circuit that UART-RXD on the single-chip microcomputer is constituted by two series resistances connect on the single-chip microcomputer the VDD power supply just, connect the output of photoelectric isolating device between the dividing point of two series resistances and the power-, the two ends of the light emitting diode of the photoelectric isolating device reception of connection interface are respectively born and are just received;
The reception that the transmission that the reception of interface is just connecting interface on the drive plate on the described display board just, the transmission of interface is just connecting interface on the drive plate on negative, the display board of the negative transmission that connects interface on the drive plate of the reception of interface on the display board just, on the display board the negative reception that connects interface on the drive plate of the transmission of interface negative.
The washing machine computer control panel of described double plate structure is characterized in that: isolate connection or non-isolation connection by photoelectricity between the communication interface on the described two computer plates.
The invention has the advantages that:
Washing machine computer plate is designed to the double-plate structure, parts such as driving, power supply are designed on a plate (calling control panel) separately, button shows that detection waits the weak current part design on a plate (being called display board), the two connects with cable, can well avoid the problem of front, reach the attenuating maintenance cost, reduce fault rate, reduce design difficulty;
The computer plate that adopts double plate structure can only carry out the design of display board usually, and needn't carry out the design of control panel again when carrying out new product designs, can significantly reduce the design work amount.
For architectural feature of the present invention, effect are had further understanding, enumerate specific embodiment now, and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 is the computer plate circuit structure diagram of existing system controlled by computer washing machine.
Fig. 2 adopts two computer printed line cable connecting circuit schematic diagrames.
Fig. 3 is that two computer printed line cables connect standard interface figure.
Fig. 4 is the circuit diagram of the present invention's two computer plate serial communications.
Fig. 5 is the circuit diagram that two computer printed line cables connect the pulse communication interface.
Fig. 6 is that two computer printed line cables connect the circuit diagram that adopts electric current loop mode serial communication.
Fig. 7 is that two computer printed line cables connect the circuit diagram that adopts electric current loop mode pulse communication.
Fig. 8 is the workflow diagram of display board and drive plate.
The specific embodiment
This utility model mainly is that the computer plate of washing machine is made into the double-plate structure by single plate structure, design on a plate (calling control panel) separately driving, drive parts such as single-chip microcomputer, power supply, weak current part such as button, demonstration, detection and single-chip microcomputer design on another piece plate (calling display board), the two connects (as shown in Figure 2) with cable, to overcome the deficiencies in the prior art.On concrete enforcement, multiple scheme can be arranged.
Embodiment one
Present embodiment is a kind of method that simply is divided into two, and its structure all adopts the cable connected mode to carry out exchanges data shown in Fig. 2,3 between the two computer plates.Essence is that two single-chip microcomputers that will be located at originally on the circuit board are arranged on two circuit boards by above-mentioned distribution.Annexation between two single-chip microcomputers is constant, just on two computer plates an interface is set respectively respectively, is called standard interface.
As shown in Figure 2, described two computer plates, a plate wherein is a display board, comprising button part, test section and display part, shows and execution most of laundry flow processing program and test section signal; Another piece plate is a drive plate, is used for load driving and part signal and detects, and is respectively equipped with corresponding connecting interface on two computer plates; The corresponding connecting interface that connects on the described two computer plates of described cable.
Fig. 3 is that two computer printed line cables connect standard interface figure.As seen from the figure:
Described connecting interface comprises the power interface and the driving signaling interface that various driving signals are provided to the display board power supply.Described driving signaling interface comprises that a plurality of standards drive signaling interface and a plurality of backup drives signaling interface.Because most washing machines use seven kinds to drive signal, be seven the tunnel so a plurality of standards driving signaling interfaces are set; Also be provided with one 3 core interface in addition and include 3 road interface signals,, use for some washing machine more than seven kinds of standard signals as space signal.Described a plurality of standard drives signaling interface and comprises:
The relay drive signal interface, the relay of control computer plate general supply, driving signal is provided by display board, and relay is located on the control panel:
Just changeing the driving signaling interface: the driving signal that the control motor for washer is just changeing, the controllable silicon that drive motors is used are on control panel, and driving signal is provided by display board;
The inversion driving signaling interface: the driving signal of control motor for washer counter-rotating, the controllable silicon that drive motors is used are on control panel, and driving signal is provided by display board;
Water inlet drives signaling interface: the driving signal of control washing machine drainage valve draining, and the controllable silicon that the driving draining valve is used is on control panel, and driving signal is provided by display board;
Draining drives signaling interface: the driving signal of control water intake valve of washing machine water inlet, the controllable silicon that the driving water intaking valve is used are on control panel, and driving signal is provided by display board;
Softening agent drives signaling interface: control washing machine softening agent valve is supplied with the driving signal of softening agent, and the controllable silicon that drives usefulness is on control panel, and driving signal is provided by display board;
Hand rubbing drives signaling interface: the driving signal of control washing machine hand rubbing tractor action, and the controllable silicon that drives usefulness is on control panel, and driving signal is provided by display board.
Described power interface comprises zero line interface and fire-wire interfaces, is outside forceful electric power electric power connection interface; The zero line and the live wire that connect forceful electric power respectively; Comprising:
+ 5V power interface: being control panel provides+power positive end of 5V power supply to display board;
+ 12V power interface: being control panel provides+power positive end of 12V power supply to display board;
The GND interface: being control panel provides the power supply negative terminal of power supply to display board, also is the common reference voltage end that drives signal.
The driving signal that begins from relay is level signal (it is effective to be generally low level), and driving force also will meet the demands simultaneously.
Said structure, employed cable, an end is welded on the display board, and the other end is inserted on the socket of control panel correspondence by plug.Cable generally adopts the flexible cord cable of diameter about 0.25.The socket core that adopts is counted difference, to guarantee can not occur inserting wrong situation.
This embodiment exists connection cable many, and when because structural reason, and two boards has to be placed in when remote at once, can introduce too many interference, even the problem of driving force deficiency can occur.
Because number of cables is many, cable is placed also needs special consideration.
For reducing wiring quantity, the utility model also provides a kind of two computer printed line cable connecting circuits that adopt communication modes, and described communication modes comprises: the interface mode of serial communication and pulse communication modes.
Embodiment two
Present embodiment provides a kind of washing machine computer control panel circuit diagram of double plate structure of interface mode of serial communication.Its structure as shown in Figure 4, its characteristics are that the interface mode of serial communication " adopt " carry out exchanges data.This mode is used the standard " serial asynchronous communication interface (UART) " on the single-chip microcomputer.
The circuit of the described interface mode of being located at the serial communication on the two computer plates connects and comprises: being connected of the single-chip microcomputer on the interface on the display board and the display board: being connected of the single-chip microcomputer on the interface on the drive plate and the drive plate: being connected of the interface on the interface on the drive plate and the display board; Wherein:
Being connected of interface on single-chip microcomputer on interface on single-chip microcomputer on the display board and the display board and the drive plate and the drive plate is identical, the VCC on the VDD connection interface on the single-chip microcomputer; Earth terminal GDN, the interface signal common port DGND of the earth terminal GDN connection interface on the single-chip microcomputer and transmission are negative, reception is negative; The transmission of UART-TXD on the single-chip microcomputer by resistance R 1 connection interface just; The reception of UART-RXD on the single-chip microcomputer by resistance R 2 connection interfaces just; The interface signal pin is connected to purpose on the pin of single-chip microcomputer correspondence through a resistance be to disturb influence to single-chip microcomputer in order to reduce interface, can play anti-interference and increase the effect of reliability, and resistance is generally selected 1K～5K ohm.
The reception that the transmission that the reception of interface is just connecting interface on the drive plate on the described display board just, the transmission of interface is just connecting interface on the drive plate on negative, the display board of the negative transmission that connects interface on the drive plate of the reception of interface on the display board just, on the display board the negative reception that connects interface on the drive plate of the transmission of interface negative.
General single-chip microcomputer all has the UART interface, and signal directly connected and got final product this moment, if single-chip microcomputer does not have corresponding interface, then can use the normal pins connection, the sequential of usefulness software simulation UART interface.Or the pulse communication modes that embodiment provided below employing the utility model.Adopt custom-designed pulse mode communication, and this is constant for present hardware, only changes the used software of using.
Embodiment three:
The utility model also provides a kind of washing machine computer control panel of double plate structure of pulse communication modes, and its circuit structure as shown in Figure 5.
The described circuit of being located at the pulse communication modes on the two computer plates connects and comprises: being connected of the single-chip microcomputer on the interface on the display board and the display board: being connected of the single-chip microcomputer on the interface on the drive plate and the drive plate: being connected of the interface on the interface on the drive plate and the display board; Wherein:
Being connected of interface on single-chip microcomputer on interface on single-chip microcomputer on the display board and the display board and the drive plate and the drive plate is identical, the VCC on the VDD connection interface on the single-chip microcomputer be power supply just; Earth terminal GDN on the single-chip microcomputer as the earth terminal GDN of power-connection interface and interface signal common port DGND and send negative, receive negative; The transmission of IO1 on the single-chip microcomputer by resistance R 5 connection interfaces just; The reception of IO2 mouth on the single-chip microcomputer by resistance R 6 connection interfaces just;
The reception that the transmission that the reception of interface is just connecting interface on the drive plate on the described display board just, the transmission of interface is just connecting interface on the drive plate on negative, the display board of the negative transmission that connects interface on the drive plate of the reception of interface on the display board just, on the display board the negative reception that connects interface on the drive plate of the transmission of interface negative.
At this moment IO1 IO2 is any two input/output ports of single-chip microcomputer.
Adopt standard interface, then adopt the standard communication modes of corresponding interface..
Embodiment four
During actual the use, above-mentioned serial communication or pulse communication can also be adopted the electric current loop mode.Fig. 6 is that two computer printed line cables connect the pulse communicating circuit figure that adopts the electric current loop mode.Fig. 7 is that two computer printed line cables connect the serial communication circuit figure that adopts the electric current loop mode.
As shown in Figure 6:
The described circuit of being located at the pulse communication modes on the two computer plates connects and comprises: being connected of the single-chip microcomputer on the interface on the display board and the display board: being connected of the single-chip microcomputer on the interface on the drive plate and the drive plate: being connected of the interface on the interface on the drive plate and the display board; Wherein:
Being connected of interface on single-chip microcomputer on interface on single-chip microcomputer on the display board and the display board and the drive plate and the drive plate is identical, the VCC on the VDD connection interface on the single-chip microcomputer be power supply just; Earth terminal GDN on the single-chip microcomputer is as the earth terminal GDN of power-connection interface and interface signal common port DGND and send negative; The bleeder circuit that IO1 on the single-chip microcomputer is constituted by two series resistance R9, R10 connect on the single-chip microcomputer the VDD power supply just, the dividing point of two series resistance R9, R10 connects triode Q1 (PNP) base stage, the emitter stage of triode Q1 is just connecing power supply, and the transmission of the colelctor electrode of triode by current-limiting resistance R13 connection interface just; The bleeder circuit that IO2 mouth on the single-chip microcomputer is constituted by two series resistance R11, R12 connect on the single-chip microcomputer the VDD power supply just, connect the output of photoelectric isolating device U1 between the dividing point of two series resistance R11, R12 and the power-, the two ends of the light emitting diode of the photoelectric isolating device U1 reception of connection interface are respectively born and are just received;
The reception that the transmission that the reception of interface is just connecting interface on the drive plate on the described display board just, the transmission of interface is just connecting interface on the drive plate on negative, the display board of the negative transmission that connects interface on the drive plate of the reception of interface on the display board just, on the display board the negative reception that connects interface on the drive plate of the transmission of interface negative.
The serial communication circuit of electric current loop mode shown in Figure 7 only is with the difference of the circuit of described pulse communication modes: the bleeder circuit that the IO1 on the single-chip microcomputer is constituted by two series resistances be connected on the single-chip microcomputer the VDD power supply just, the dividing point of two series resistances connects transistor base; The bleeder circuit that IO2 mouth on the single-chip microcomputer is constituted by two series resistances connect on the single-chip microcomputer the VDD power supply just, connect the output of photoelectric isolating device between the dividing point of two series resistances and the power-;
The advantage of this method is that antijamming capability is stronger. shortcoming is that cost increases, and adopts this mode, needn't change software processing mode.
Above-mentioned three kinds of communication modes can be isolated connection or non-isolation connection by photoelectricity between the communication interface on the described two computer plates.
Adopt this interface mode, at most only just can realize connection between two plates, significantly reduced the quantity of cable with 4 connecting lines.
Connected mode is to adopt the mode of communication to carry out exchanges data between two plates, realizes the control function.Display board drives signal to needs and sends to control panel by this interface, after the control panel single-chip microcomputer receives instruction, sends the driving signal according to command request and gets final product.
Adopt this interface pattern, control panel needs independently single-chip microcomputer and handles, if the pattern that adopts full light to isolate, display board also needs independent power supply.
Be defined as follows for the interface signal among the figure:
Just send: two plates send the data-signal anode, connect the reception anode of the other side's plate.
Send negative: two plates send the data-signal negative terminal, connect the reception negative terminal of the other side's plate, and under the situation of non-isolation, this port is signal end just.
Common port gets final product with negative the linking together of reception.
Just receive: two plates receive the anode of the other side's data-signal, connect the transmission anode of the other side's plate.
Reception is negative: two plates receive the data-signal negative terminal, connect the transmission negative terminal of the other side's plate, and under the situation of non-isolation, this port just common port of signal gets final product with negative the linking together of transmission.
Adopt said structure, employed cable, we are general, and an end is welded on the display board, and the other end is inserted on the socket of control panel correspondence by plug.Cable generally adopts the flexible cord cable of diameter about 0.25.
Communication modes is the formula of replying.Display board is a main frame, and drive plate is a passenger plane.
Communication each time all is that display board at first sends to drive plate, sends the end back interior drive plate of maximum 50ms and sends to display board.
Drive plate can not initiatively send to display board.
In the time of after display board is sending signal and finishes, can not receiving the correct answer of drive plate in the 50ms, can think that this communication breaks down.Display board resends instruction, if continuous all can not finish correct communication three times the time, can think that communication breaks down.
Send the data low level formerly, high-order after.
Display board is issued the order of drive plate:
1, output state order:
(1) command word B1:0x11
(2)------motor just changes----in data B2:0 position
1----------motor counter-rotating
2----------water inlets
3----------draining pumps
4----------drain motors
5----------drainings 1
6----------drainings 2
7----------softening agents
(3) data B3:0 position----------main relay
1----------adds electrothermal relay 1
2----------adds electrothermal relay 2
3---------Jia electrothermal relays 3
4---------air channel blower fans
5---------DC water pumps
6---------condensation traps
7---------condensation traps
(4) data B4: standby
Drive plate is issued the order of display board:
1, acknowledgement command: when the order that drive plate is received display board, the return data in accordance with regulations that has data to return does not have data to return, and return and receive acknowledgement command.
(1) command word B1:0x11
(2) data B2: if reception is correctly returned 0x88 otherwise return other value
(3) data B3, B4 are indifferent to
Above command mode can continue expansion as required.
Information exchanging process between two plates:
One, for the communication mode, two plates are directly to connect with cable, driving signal is provided by display board, directly act on the drive plate associated components, the signal that the drive plate electric circuit inspection goes out, also be directly to be connected to display board single-chip microcomputer mouth, handle do not have the information exchange of communication modes through connecting circuit.
Two, for the connection of communication modes, signal transduction process is::
According to above-mentioned communication instruction agreement, send the drive controlling instruction by display board, receive correct if drive plate receives the instruction back, then instruction instruction, simultaneously send answer signal, tell that the display board instruction is correct, if receive instruction errors to display board, then only send answer signal, tell display board command reception mistake.
Fig. 8 is the workflow diagram of display board and drive plate.Its flow process is as follows:
Step 1, initialization;
Are step 3, drive plate received the display board instruction? if not, then enter step 4; If then enter step 5
Whether do step 5, inspection instruct correct? if not, then enter step 6; If then enter step 7;
Do step 9, display board receive that drive plate replys? if then enter step 10; If not, then enter step 11:
Whether step 10, the instruction that drive plate received correct? if correct, then enter step 11; If not, then enter step 12;
Other program is carried out in step 11, continuation, returns step 2 then;
In the expanded application afterwards, if when drive plate has function such as temperature detection, then display board can send increase newly ask for the temperature value instruction, drive plate receives to reply after the correct instruction and replys, and tells the display board temperature value.
Claims (9)
1, a kind of washing machine computer control panel of double plate structure comprises two computer plates, it is characterized in that: adopt the cable connected mode to carry out exchanges data between the described two computer plates.
2, the washing machine computer control panel of double plate structure according to claim 1, it is characterized in that: described two computer plates, a plate wherein is a display board, comprising button part, test section and display part, show and execution most of laundry flow processing program and test section signal; Another piece plate is a drive plate, is used for load driving and part signal and detects, and is respectively equipped with corresponding connecting interface on two computer plates; The corresponding connecting interface that connects on the described two computer plates of described cable.
3, the washing machine computer control panel of double plate structure according to claim 2 is characterized in that: described connecting interface comprises power interface and drives signaling interface; Described driving signaling interface comprises that a plurality of standards drive signaling interface and a plurality of backup drives signaling interface;
Described a plurality of standard drives signaling interface and comprises:
The relay drive signal interface, the relay of control computer plate general supply, driving signal is provided by display board, and relay is located on the control panel:
Just changeing the driving signaling interface: the driving signal that the control motor for washer is just changeing, the controllable silicon that drive motors is used are on control panel, and driving signal is provided by display board;
The inversion driving signaling interface: the driving signal of control motor for washer counter-rotating, the controllable silicon that drive motors is used are on control panel, and driving signal is provided by display board;
Water inlet drives signaling interface: the driving signal of control washing machine drainage valve draining, and the controllable silicon that the driving draining valve is used is on control panel, and driving signal is provided by display board;
Draining drives signaling interface: the driving signal of control water intake valve of washing machine water inlet, the controllable silicon that the driving water intaking valve is used are on control panel, and driving signal is provided by display board;
Softening agent drives signaling interface: control washing machine softening agent valve is supplied with the driving signal of softening agent, and the controllable silicon that drives usefulness is on control panel, and driving signal is provided by display board;
Hand rubbing drives signaling interface: the driving signal of control washing machine hand rubbing tractor action, and the controllable silicon that drives usefulness is on control panel, and driving signal is provided by display board.
Described power interface comprises zero line interface and fire-wire interfaces, is outside forceful electric power electric power connection interface; The zero line and the live wire that connect forceful electric power respectively; Comprising:
+ 5V power interface: being control panel provides+power positive end of 5V power supply to display board;
+ 12V power interface: being control panel provides+power positive end of 12V power supply to display board;
The GND interface: being control panel provides the power supply negative terminal of power supply to display board, also is the common reference voltage end that drives signal.
4, the washing machine computer control panel of double plate structure according to claim 2, it is characterized in that: described connecting interface is a communication interface, the interface mode of described communication is the interface mode of serial communication, or the pulse communication modes.
5, the washing machine computer control panel of double plate structure according to claim 4 is characterized in that: the circuit of the described interface mode of being located at the serial communication on the two computer plates connects and comprises: being connected of the single-chip microcomputer on the interface on the display board and the display board: being connected of the single-chip microcomputer on the interface on the drive plate and the drive plate: being connected of the interface on the interface on the drive plate and the display board; Wherein:
Being connected of interface on single-chip microcomputer on interface on single-chip microcomputer on the display board and the display board and the drive plate and the drive plate is identical, the VCC on the VDD connection interface on the single-chip microcomputer; Earth terminal GDN, the interface signal common port DGND of the earth terminal GDN connection interface on the single-chip microcomputer and transmission are negative, reception is negative; The transmission of UART-TXD on the single-chip microcomputer by the resistance connection interface just; The reception of UART-RXD on the single-chip microcomputer by the resistance connection interface just;
The reception that the transmission that the reception of interface is just connecting interface on the drive plate on the described display board just, the transmission of interface is just connecting interface on the drive plate on negative, the display board of the negative transmission that connects interface on the drive plate of the reception of interface on the display board just, on the display board the negative reception that connects interface on the drive plate of the transmission of interface negative.
6, the washing machine computer control panel of double plate structure according to claim 4 is characterized in that: the described circuit of being located at the pulse communication modes on the two computer plates connects and comprises: being connected of the single-chip microcomputer on the interface on the display board and the display board: being connected of the single-chip microcomputer on the interface on the drive plate and the drive plate: being connected of the interface on the interface on the drive plate and the display board; Wherein:
Being connected of interface on single-chip microcomputer on interface on single-chip microcomputer on the display board and the display board and the drive plate and the drive plate is identical, the VCC on the VDD connection interface on the single-chip microcomputer be power supply just; Earth terminal GDN on the single-chip microcomputer as the earth terminal GDN of power-connection interface and interface signal common port DGND and send negative, receive negative; The transmission of IO1 on the single-chip microcomputer by the resistance connection interface just; The reception of IO2 mouth on the single-chip microcomputer by the resistance connection interface just;
The reception that the transmission that the reception of interface is just connecting interface on the drive plate on the described display board just, the transmission of interface is just connecting interface on the drive plate on negative, the display board of the negative transmission that connects interface on the drive plate of the reception of interface on the display board just, on the display board the negative reception that connects interface on the drive plate of the transmission of interface negative.
7, the washing machine computer control panel of double plate structure according to claim 4 is characterized in that: the described circuit of being located at the pulse communication modes on the two computer plates connects and comprises: being connected of the single-chip microcomputer on the interface on the display board and the display board: being connected of the single-chip microcomputer on the interface on the drive plate and the drive plate: being connected of the interface on the interface on the drive plate and the display board; Wherein:
Being connected of interface on single-chip microcomputer on interface on single-chip microcomputer on the display board and the display board and the drive plate and the drive plate is identical, the VCC on the VDD connection interface on the single-chip microcomputer be power supply just; Earth terminal GDN on the single-chip microcomputer is as the earth terminal GDN of power-connection interface and interface signal common port DGND and send negative; The bleeder circuit that IO1 on the single-chip microcomputer is constituted by two series resistances connect on the single-chip microcomputer the VDD power supply just, the dividing point of two series resistances connects transistor base, the emitter stage of triode is just connecing power supply, and the transmission of the colelctor electrode of triode by the current-limiting resistance connection interface just; The bleeder circuit that IO2 mouth on the single-chip microcomputer is constituted by two series resistances connect on the single-chip microcomputer the VDD power supply just, connect the output of photoelectric isolating device between the dividing point of two series resistances and the power-, the two ends of the light emitting diode of the photoelectric isolating device reception of connection interface are respectively born and are just received;
The reception that the transmission that the reception of interface is just connecting interface on the drive plate on the described display board just, the transmission of interface is just connecting interface on the drive plate on negative, the display board of the negative transmission that connects interface on the drive plate of the reception of interface on the display board just, on the display board the negative reception that connects interface on the drive plate of the transmission of interface negative.
8, the washing machine computer control panel of double plate structure according to claim 4 is characterized in that: the described circuit of being located at the serial communication mode on the two computer plates connects and comprises: being connected of the single-chip microcomputer on the interface on the display board and the display board: being connected of the single-chip microcomputer on the interface on the drive plate and the drive plate: being connected of the interface on the interface on the drive plate and the display board; Wherein:
Being connected of interface on single-chip microcomputer on interface on single-chip microcomputer on the display board and the display board and the drive plate and the drive plate is identical, the VCC on the VDD connection interface on the single-chip microcomputer be power supply just; Earth terminal GDN on the single-chip microcomputer is as the earth terminal GDN of power-connection interface and interface signal common port DGND and send negative; The bleeder circuit that UART-TXD on the single-chip microcomputer is constituted by two series resistances connect on the single-chip microcomputer the VDD power supply just, the dividing point of two series resistances connects transistor base, the emitter stage of triode is just connecing power supply, and the transmission of the colelctor electrode of triode by the current-limiting resistance connection interface just; The bleeder circuit that UART-RXD on the single-chip microcomputer is constituted by two series resistances connect on the single-chip microcomputer the VDD power supply just, connect the output of photoelectric isolating device between the dividing point of two series resistances and the power-, the two ends of the light emitting diode of the photoelectric isolating device reception of connection interface are respectively born and are just received;
The reception that the transmission that the reception of interface is just connecting interface on the drive plate on the described display board just, the transmission of interface is just connecting interface on the drive plate on negative, the display board of the negative transmission that connects interface on the drive plate of the reception of interface on the display board just, on the display board the negative reception that connects interface on the drive plate of the transmission of interface negative.
9, according to the washing machine computer control panel of claim 5 or 6 or 7 or 8 described double plate structures, it is characterized in that: isolate connection or non-isolation connection by photoelectricity between the communication interface on the described two computer plates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100567953A CN101033579B (en) | 2006-03-08 | 2006-03-08 | Washing machine computer control plate with double-plate structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100567953A CN101033579B (en) | 2006-03-08 | 2006-03-08 | Washing machine computer control plate with double-plate structure |
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| CN101033579A true CN101033579A (en) | 2007-09-12 |
| CN101033579B CN101033579B (en) | 2010-12-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011047519A1 (en) * | 2009-10-22 | 2011-04-28 | 深圳和而泰智能控制股份有限公司 | Control device for impeller washing machine and washing machine thereof |
| CN103457595A (en) * | 2012-06-01 | 2013-12-18 | 海尔集团公司 | Single chip microcomputer full duplex communication device and communication method |
| CN103941709A (en) * | 2014-05-09 | 2014-07-23 | 山东大学 | Bus-based electronic bag depositing cabinet and control assembly method thereof |
| CN104503527A (en) * | 2014-11-25 | 2015-04-08 | 上海华力微电子有限公司 | Reference current generating circuit |
| CN107653636A (en) * | 2017-11-13 | 2018-02-02 | 惠州市蓝微电子有限公司 | A kind of inexpensive washing machine control system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1215217C (en) * | 2002-07-19 | 2005-08-17 | 合肥荣事达集团有限责任公司 | Washing-machine controlling method |
| CN1932128A (en) * | 2005-09-13 | 2007-03-21 | 深圳市拓邦电子科技股份有限公司 | Double-control single-wire communication washing machine control system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011047519A1 (en) * | 2009-10-22 | 2011-04-28 | 深圳和而泰智能控制股份有限公司 | Control device for impeller washing machine and washing machine thereof |
| CN103457595A (en) * | 2012-06-01 | 2013-12-18 | 海尔集团公司 | Single chip microcomputer full duplex communication device and communication method |
| CN103457595B (en) * | 2012-06-01 | 2016-06-15 | 海尔集团公司 | Single-chip microcomputer full duplex communication device and the means of communication |
| CN103941709A (en) * | 2014-05-09 | 2014-07-23 | 山东大学 | Bus-based electronic bag depositing cabinet and control assembly method thereof |
| CN103941709B (en) * | 2014-05-09 | 2017-02-15 | 山东大学 | Bus-based electronic bag depositing cabinet and control assembly method thereof |
| CN104503527A (en) * | 2014-11-25 | 2015-04-08 | 上海华力微电子有限公司 | Reference current generating circuit |
| CN107653636A (en) * | 2017-11-13 | 2018-02-02 | 惠州市蓝微电子有限公司 | A kind of inexpensive washing machine control system |
| CN107653636B (en) * | 2017-11-13 | 2020-07-24 | 惠州市蓝微电子有限公司 | Power supply control system of washing machine |
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|---|---|
| CN101033579B (en) | 2010-12-29 |
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