CN2420670Y - Liquid crystal display controller for dehumidifier - Google Patents
Liquid crystal display controller for dehumidifier Download PDFInfo
- Publication number
- CN2420670Y CN2420670Y CN 00202067 CN00202067U CN2420670Y CN 2420670 Y CN2420670 Y CN 2420670Y CN 00202067 CN00202067 CN 00202067 CN 00202067 U CN00202067 U CN 00202067U CN 2420670 Y CN2420670 Y CN 2420670Y
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Abstract
The utility model relates to a liquid crystal display controller for a dehumidifier, which comprises a main control unit, a display unit, a signal input unit and a signal output unit, wherein, the display unit, the signal input unit and the signal output unit are respectively connected with the main control unit. The utility model is characterized in that the main control unit comprises a microcomputer SCM with high integration, and port of the microcomputer SCM is connected with a hygristor which is used for detecting a humidity signal and a temperature signal. A liquid crystal display controller for a dehumidifier has the advantages that the graphics display of the working state is visual, the control precision is high, the practicability is strong, and the performance is reliable.
Description
The utility model relates to household appliance technical field, relates in particular to a kind of LCD controller that is used for dehumidifier.
In the prior art, the various controllers of dehumidifier, humidifier and Humidity Detection equipment utilize thermistor as detecting sensor mostly, promptly utilize temperature to regulate controlled humidity, therefore and in its control circuit, seldom adopt single-chip microcomputer to finish control, have that control accuracy is low, versatility is poor, the shortcoming of unstable properties.
The purpose of this utility model provides a kind of LCD controller that is used for dehumidifier, can overcome the above-mentioned shortcoming of prior art, except that can accurately showing the dehumidifier state by LCD, accurately sensing ambient humidity and temperature have the advantage of demonstration simultaneously and controlled humidity and temperature, control accuracy height, practical and dependable performance.
The purpose of this utility model is achieved by the following technical solution: utilize hygristor as detecting sensor, the running status that shows main frame with LCD display, and in its main control unit, utilize high integrated chip microcontroller control, this LCD controller comprises main control unit, the display unit that is connected with described main control unit respectively, driver element and switch, the compatible hygristor that detects moisture signal and temperature signal, specifically, comprise main control unit, the display unit that is connected with described main control unit respectively, signal input unit, signal output unit, described signal input unit comprises the simulating signal input block, switching signal input block and water level detection switch input signal unit, wherein, described simulating signal input block comprises hygristor, pipe temperature sensor and three minutes detecting units, the simulating signal of their output is connected with four road A/D input ports of single-chip microcomputer by socket; Described switching signal input block comprises that the matrix input block of being made up of a plurality of keyswitches is connected with the input interface of single-chip microcomputer, and described water level detection switch input signal unit is connected with the port of single-chip microcomputer by socket.
Wherein, signal output unit comprises: the work indicating member that is connected with one-chip machine port and is formed by luminotron, form the hummer unit that is connected to interface microcontroller by hummer and triode, the relay drive unit that is connected with one-chip machine port through socket by relay.
Implement LCD controller of the present utility model, its main control unit adopts the microcomputer singlechip of the high integration of quality better, highly versatile, gather moisture signal and switching signal by the I/O interface, compare computing then and the result is used to drive corresponding external circuit.Advantage with duty figure intuitive display, control accuracy height, practical and dependable performance.
Below in conjunction with drawings and Examples the utility model is further elaborated.
Fig. 1 is the schematic block circuit diagram of dehumidifier controller of the present utility model;
Fig. 2 is the circuit structure diagram of dehumidifier controller of the present utility model.
An exemplary embodiments of the present utility model as depicted in figs. 1 and 2 comprises main control unit, display unit, signal input unit, signal output unit; High integrated microcomputer singlechip, the compatible hygristor that detects moisture signal and temperature signal have wherein been adopted in the main control unit.This microcomputer singlechip is four machine single-chip microcomputers, 20 section LCD or LED driver element that its inside is provided with No. 4 common ports and can directly drives.
The main control unit of LCD controller of the present utility model as shown in Figure 2, main control chip wherein adopt the TMP47C422 singlechip chip of Japanese TOSHIBA company; The reception of a series of signal of controller, comparison and computing are finished by this chip, this chip also export simultaneously control signal drive corresponding circuit and output corresponding shows signal light graphical symbol.
The LCD that the display unit of LCD controller of the present utility model as shown in Figure 2 is provided with No. 4 common ports and 12 sections shows.Be connected with com interface with the SEG interface of single-chip microcomputer by LCD display and form, this circuit is finished the demonstration of various figures, is divided into 4 row, 12 row according to displaying contents.By 4 row COM1～COM4 signals and the 12 row SEG0～SEG11 signals of main control chip according to the setting output of mode of operation, display unit is selected corresponding graphic presentation then.
Input signal comprises switching signal and simulating signal in the signal input unit of LCD controller of the present utility model as shown in Figure 2; Switching signal comprises by key input signal and water level detecting signal; Push button signalling input by S201～S207 totally 7 keys forms matrix unit and is connected with the R80-R91 interface of single-chip microcomputer and forms, be connected by socket X204 connection water level detection switch and with the R92 interface of single-chip microcomputer and form the input of water level switch signal.When the manually-operated button, receive by main control unit, low level represents to have the signal input, and high level is represented the no signal input.The simulating signal input block is connected with AIN0-AIN3 four road A/D input ports of single-chip microcomputer by socket X202, X203 with three minutes time-delay detecting unit output detection signals by hygristor sensor, pipe temperature sensor and forms, after main control unit is gathered, the humidity and the temperature that are provided with input compare, and realize control corresponding then.
The output signal unit of LCD controller of the present utility model as shown in Figure 2 comprises: relay drive circuit, LED indicating member and buzzer circuit.Wherein, relay drive circuit is connected with PA4-PA7 four road control interfaces of single-chip microcomputer with triode V102-V105 with socket X201 and by discharge circuit through socket X107 by relay K 101-K104 and forms, the LED indicating member is connected and forms with P50, the P52 output interface of single-chip microcomputer by luminotron E201, E202, indication that the realization operation is indicated and water is completely reported to the police; Buzzer circuit is connected with the PULSE interface of single-chip microcomputer by triode V204 by hummer B201 and forms, and finishes and reports to the police and button work prompting.
The hygristor that is adopted in the dehumidifier controller of the present utility model is that to be 0～60 ℃, precision be ± 1.2 ℃ sensitive element to humidity range of control to be 20%～95%RH, precision be ± 5%RH, temperature controlling range.
Claims (6)
1, a kind of LCD controller that is used for dehumidifier, comprise main control unit, the display unit, signal input unit, the signal output unit that are connected with described main control unit respectively, described main control unit comprises a microcomputer singlechip, it is characterized in that;
Described signal input unit comprises simulating signal input block, switching signal input block and water level detection switch input signal unit, wherein, described simulating signal input block comprises hygristor, pipe temperature sensor and three minutes detecting units, and the simulating signal of their output is connected with four road A/D input ports of single-chip microcomputer by socket; Described switching signal input block comprises that the matrix input block of being made up of a plurality of keyswitches is connected with the input interface of single-chip microcomputer, and described water level detection switch input signal unit is connected with the port of single-chip microcomputer by socket.
2, according to the described LCD controller of claim 1, it is characterized in that, described signal output unit comprises: the work indicating member that is connected with one-chip machine port and is formed by luminotron, form the hummer unit that is connected to interface microcontroller by hummer and triode, the relay drive unit that is connected with one-chip machine port through socket by relay.
According to the described LCD controller of claim 1, it is characterized in that 3, described display unit comprises that LCD display is connected with com interface with the SEG interface of single-chip microcomputer.
According to the described LCD controller of claim 1, it is characterized in that 4, described microcomputer singlechip is four machine single-chip microcomputers, its inside is provided with No. 4 common ports, can directly drives 12 section LCD or LED and 20 I/O mouth driver elements.
According to the described LCD controller of claim 1, it is characterized in that 5, described display unit is the LCD display unit that No. 4 common ports and 12 sections are arranged.
According to the described LCD controller of claim 1, it is characterized in that 6, described hygristor is that to be 0～60 ℃, precision be ± 1.2 ℃ sensitive element to humidity range of control to be 20%～95%RH, precision be ± 5%RH, temperature controlling range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00202067 CN2420670Y (en) | 2000-01-05 | 2000-01-05 | Liquid crystal display controller for dehumidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00202067 CN2420670Y (en) | 2000-01-05 | 2000-01-05 | Liquid crystal display controller for dehumidifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2420670Y true CN2420670Y (en) | 2001-02-21 |
Family
ID=33571160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00202067 Expired - Fee Related CN2420670Y (en) | 2000-01-05 | 2000-01-05 | Liquid crystal display controller for dehumidifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2420670Y (en) |
-
2000
- 2000-01-05 CN CN 00202067 patent/CN2420670Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |