CN207623732U - A kind of liquid-crystal controller - Google Patents
A kind of liquid-crystal controller Download PDFInfo
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- CN207623732U CN207623732U CN201721738134.9U CN201721738134U CN207623732U CN 207623732 U CN207623732 U CN 207623732U CN 201721738134 U CN201721738134 U CN 201721738134U CN 207623732 U CN207623732 U CN 207623732U
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- mcu
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- liquid
- driving chip
- output end
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Abstract
The utility model discloses a kind of liquid-crystal controllers, including MCU, liquid crystal display, the first driving chip, button, WIFI module and LORA modules, the output end of the MCU is connect with the input terminal of the first driving chip, the output end of first driving chip and the input terminal of liquid crystal display connect, the MCU is connect with WIFI module and LORA modules respectively, and the input terminal of the MCU and the output end of button connect.The utility model is additionally arranged LORA modules, and since LORA modules are without installing phonecard, cost is low compared with 3G/4G modules so that the overall cost of liquid-crystal controller reduces；And communication distance of the LORA modules under Same Efficieney is farther with respect to the communication of 3G/4G, and the base station of required covering is less, therefore the utility model is easy to universal in remote districts.The utility model can be widely applied to heat pump control field.
Description
Technical field
The utility model is related to heat pump control field, especially a kind of liquid-crystal controller.
Background technology
Current air-conditioning and heat-pump apparatus both domestic and external, for many years always control equipment using liquid-crystal controller.
These liquid-crystal controllers are generally communicated using 485 serial ports with host, and there is no any wireless transmission and receive information
Function, such liquid-crystal controller can not meet the functional requirement of present " internet+" or " intelligent cloud system ".
In order to meet the Interconnection of old product, present manufacturer has to increase 3G/4G modules on original product
Etc. expensive communication module (price of 3G/4G modules is at 100 yuan or so), and user also needs to equipment phonecard, at
This is relatively high；In addition 3G/4G networks rely on neighbouring base station, if being covered without 3G/4G in using area, liquid-crystal controller
It can not network, therefore the current liquid-crystal controller using 3G/4G communications is difficult to popularize in remote districts.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is that：It provides a kind of at low cost and is easy to universal liquid
Brilliant controller.
Technical solution adopted in the utility model is：
A kind of liquid-crystal controller, including MCU, liquid crystal display, the first driving chip, button, WIFI module and LORA moulds
Block, the output end of the MCU are connect with the input terminal of the first driving chip, the output end and liquid crystal of first driving chip
The input terminal of display screen connects, and the MCU is connect with WIFI module and LORA modules respectively, the input terminal of the MCU and button
Output end connects.
Further, further include the second driving chip, the input terminal of second driving chip and the output end of MCU connect,
The output end of second driving chip and the input terminal of liquid crystal display connect.
Further, further include NB-IOT modules, the NB-IOT modules are connect with MCU.
Further, further include memory module, the memory module is connect with MCU.
Further, the quantity of the button is 5.
Further, further include buzzer, the input terminal of the buzzer and the output end of MCU connect.
Further, further include power module, the output end of the power module and the input terminal of MCU connect.
The utility model has the beneficial effects that：Including MCU, liquid crystal display, button, WIFI module and LORA modules, originally
Utility model is additionally arranged LORA modules, and since LORA modules are without installing phonecard, cost is low compared with 3G/4G modules so that liquid crystal
The overall cost of controller reduces；And communication distance of the LORA modules under Same Efficieney is farther with respect to the communication of 3G/4G, institute
Need the base station covered less, therefore the utility model is easy to universal in remote districts.
Description of the drawings
Fig. 1 is a kind of circuit module block diagram of liquid-crystal controller of the utility model.
Specific implementation mode
Referring to Fig.1, a kind of liquid-crystal controller, including MCU, liquid crystal display, the first driving chip, button, WIFI module
With LORA modules, the output end of the MCU is connect with the input terminal of the first driving chip, the output end of first driving chip
It is connect with the input terminal of liquid crystal display, the MCU is connect with WIFI module and LORA modules respectively, the input terminal of the MCU
It is connect with the output end of button.
Referring to Fig.1, it is further used as preferred embodiment, further includes the second driving chip, second driving chip
Input terminal and the output end of MCU connect, the input terminal of the output end of second driving chip and liquid crystal display connects.
Referring to Fig.1, it is further used as preferred embodiment, further includes NB-IOT modules, the NB-IOT modules and MCU
Connection.
Referring to Fig.1, it is further used as preferred embodiment, further includes memory module, the memory module connects with MCU
It connects.
It is further used as preferred embodiment, the quantity of the button is 5.
Referring to Fig.1, it is further used as preferred embodiment, further includes buzzer, the input terminal and MCU of the buzzer
Output end connection.
Referring to Fig.1, it is further used as preferred embodiment, further includes power module, the output end of the power module
It is connect with the input terminal of MCU.
The professional term occurred in embodiment is explained below：
LORA：It is a kind of Internet of Things communication technology and a kind of low-power consumption wan technology, is Semtech companies of the U.S.
Using and promote a kind of overlength distance wireless transmission scheme based on spread spectrum.The technology is mainly in 433,868 and
It is used in the free frequency range such as 915MHz.The LORA communication technologys have the advantages that long transmission distance and low in energy consumption.LORA is communicated at present
Technology carries out pilot and construction in multiple countries.
NB-IOT(Narrow Band Internet of Things)：It is built based on cellular narrowband Internet of Things NB-IOT
In cellular network, which only consumes the bandwidth of about 180KHz, can be deployed directly into GSM network, UMTS network or LTE nets
Network, to reduce lower deployment cost, realize smooth upgrade.
The utility model is further detailed with specific embodiment with reference to the accompanying drawings of the specification.
Embodiment 1
In order to solve the problems, such as that at present product exists on the market, the present embodiment proposes a kind of liquid-crystal controller.With reference to figure
1, which includes MCU, liquid crystal display, the first driving chip, the second driving chip, button, WIFI module, LORA moulds
Block, NB-IOT modules, memory module, buzzer and power module.Connection relation is as shown in Figure 1.
Wherein, button is used for input data.The quantity one of button shares 5, including " power button ", " setting button ",
" confirming button ", " increasing button " and " reducing button ".The GPIO of the button and MCU connections.Button may be used on the market
Common key-press realize.
WIFI module, for carrying out network communication, transmission or receiving network data by WIFI access points.WIFI module
It being connect with MCU by serial ports, USB interface or I2C, the WIFI module may be used existing WIFI module and realize, such as
It is realized using the LPT-220 wireless modules of RTL8188FTV wireless modules or Shanghai Chinese maple electronics.
LORA modules, for carrying out network communication, transmission or receiving network data by the LORA communication technologys.LORA moulds
Block is connect by serial ports, USB interface or I2C with MCU, and the LORA moulds of the LSD4RF of your science and technology of Dary may be used in LORA modules
Block or other LORA modules on the market are realized.
NB-IOT modules, for carrying out network communication, transmission or simultaneously receiving network data by NB-IOT Internet of Things.
NB-IOT modules are connect by serial ports, USB interface or I2C with MCU, and Dary that science and technology may be used in NB-IOT modules
NB05-01 modules or on the market other NB-IOT modules are realized.
MCU is used for the network number that the input data according to button, the network data that LORA modules receive, WIFI module receive
According to or NB-IOT modules receive network data, carry out data processing, with Trig control signal.The MCU of the utility model is not
The improvement being related in any data handling procedure, i.e., the improvement not being related on any software approach, the data handling procedure of MCU can
To use existing chip microcontroller, realized for example, by using STM32 family chips or MSP430 family chips.
First driving chip and the second driving chip, for driving liquid crystal display according to the control signal of MCU.First driving
Chip and the second driving chip can be connect by serial ports or I2C with MCU.First driving chip and the second driving core
The realization of HT1621B driving chips may be used in piece, and HT1621B driving chips are mainly used for the liquid crystal display of drive section pattern
Screen.
Liquid crystal display, for being shown according to the drive signal of the first driving chip and the second driving chip.It is described
Liquid crystal display is connect with the output GPIO of the first driving chip and the second driving chip respectively, and liquid crystal display may be used existing
The liquid crystal display of some segment encode types is realized.First driving chip and the second driving chip cooperation liquid crystal display use so that
User can by button switch different mode, in different modes liquid crystal display show different contents.Such as liquid
Crystal display screen has 50 pen sections, the first driving chip to drive preceding 25 pen sections, 25 pen sections after the driving of the second driving chip, it is assumed that
User selection mode A, in this mode, MCU can close the second driving chip, there was only preceding 25 pen sections in liquid crystal display at this time
It can display.The working condition of first driving chip and the second driving chip is combined (i.e. the first driving chip closing/the second
The work of the/the first driving chip is closed in driving chip work, the second driving chip and the two works at the same time), it may be implemented three kinds
The display of different mode meets the needs (such as the display content of air-conditioning and heat pump is different) of different application occasion, when
When the corresponding driving chip of section does not work, this section enters dormant state, on the one hand can reduce the electricity consumption of liquid crystal display,
On the other hand the vision of user can be interfered to avoid extra display content.
Memory module, for the control signal-obtaining or storage data (such as operation note etc.) according to MCU.It is described to deposit
Storage module is connect by serial ports or I2C with MCU.The memory module may be used existing flash chip and realize.
Buzzer is sent out for the control signal according to MCU when user operates liquid-crystal controller using button
Sound.Adding buzzer can prompt user to push button, and promote user experience.
Power module, for powering to liquid crystal control panel, LM1117 and its peripheral circuit may be used in the power module
It realizes.
The operation principle of the utility model is as follows：
User operates liquid-crystal controller by button, and MCU carries out data processing to the input data of button, generates
Control control signal (including control signal cluster, storage control signal and display control signal).The WIFI module, LORA moulds
Block or NB-IOT modules carry out network communication according to control signal cluster.First driving chip and the second driving chip root
It is shown according to display control signal driving liquid crystal display.The memory module carries out data according to storage control signal and deposits
Storage.
In conclusion a kind of liquid-crystal controller of the utility model has the following advantages：
1) the utility model adds LORA modules (about 20 yuan of cost), and Material Cost is less expensive relative to 3G/4G modules
(price of 3G/4G modules is at 100 yuan or so), and without using phonecard so that usage charges are lower.Even if in addition WIFI
The cost (cost of WIFI module is within 10 yuan) of module, relative to the technical solution using 3G/4G modules still it is cheap very
It is more.
2) the utility model is additionally arranged NB-IOT modules so that user can select tri- kinds of connection of NB-IOT, WIFI and LORA
Net mode meets the needs of different network environments.
3) the utility model is additionally arranged the second driving circuit so that liquid crystal display drives in the first driving circuit and second
Different display patterns can be switched under the driving of circuit.
It is to be illustrated to the preferable implementation of the utility model, but the utility model is not limited to the reality above
Example is applied, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Shape or replacement, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (7)
1. a kind of liquid-crystal controller, it is characterised in that：Including MCU, liquid crystal display, the first driving chip, button, WIFI module
With LORA modules, the output end of the MCU is connect with the input terminal of the first driving chip, the output end of first driving chip
It is connect with the input terminal of liquid crystal display, the MCU is connect with WIFI module and LORA modules respectively, the input terminal of the MCU
It is connect with the output end of button.
2. a kind of liquid-crystal controller according to claim 1, it is characterised in that：Further include the second driving chip, described
The output end of the input terminals of two driving chips and MCU connect, the output end of second driving chip and liquid crystal display it is defeated
Enter end connection.
3. a kind of liquid-crystal controller according to claim 1, it is characterised in that：Further include NB-IOT modules, the NB-
IOT modules are connect with MCU.
4. a kind of liquid-crystal controller according to claim 1, it is characterised in that：Further include memory module, the storage mould
Block is connect with MCU.
5. a kind of liquid-crystal controller according to claim 1, it is characterised in that：The quantity of the button is 5.
6. a kind of liquid-crystal controller according to claim 1, it is characterised in that：Further include buzzer, the buzzer
The output end of input terminal and MCU connect.
7. according to a kind of liquid-crystal controller of claim 1-6 any one of them, it is characterised in that：Further include power module, institute
The input terminal of the output end and MCU of stating power module connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721738134.9U CN207623732U (en) | 2017-12-11 | 2017-12-11 | A kind of liquid-crystal controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721738134.9U CN207623732U (en) | 2017-12-11 | 2017-12-11 | A kind of liquid-crystal controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207623732U true CN207623732U (en) | 2018-07-17 |
Family
ID=62823698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721738134.9U Expired - Fee Related CN207623732U (en) | 2017-12-11 | 2017-12-11 | A kind of liquid-crystal controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207623732U (en) |
-
2017
- 2017-12-11 CN CN201721738134.9U patent/CN207623732U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 Termination date: 20181211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |