CN109959456A - A kind of thermometer shown based on full-color LED - Google Patents
A kind of thermometer shown based on full-color LED Download PDFInfo
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- CN109959456A CN109959456A CN201910285309.2A CN201910285309A CN109959456A CN 109959456 A CN109959456 A CN 109959456A CN 201910285309 A CN201910285309 A CN 201910285309A CN 109959456 A CN109959456 A CN 109959456A
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- temperature
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- color led
- color
- display module
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/32—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using change of resonant frequency of a crystal
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses to solve the above problems, the present invention provides a kind of thermometer shown based on full-color LED, including temperature-measuring module, full-color LED temperature display module, brightness measurement module, micro controller unit MCU and manual driver plate control switch；Temperature-measuring module is used to measure the temperature of ambient enviroment, brightness of the brightness measurement module to measure ambient enviroment, micro controller unit MCU realizes the regulation of full-color LED display module for receiving temperature-measuring module, the collected temperature signal of brightness measurement module and luminance signal；Full-color LED temperature display module using being made of WS2812B full color intelligence controllable light source, light source group vertical cartel at "-" type lattice structure, to show the variation of ambient temperature；Thermometer of the invention shows bright colors, and color change is abundant, and displays temperature is intuitive, and the long-range data that read are convenient, and low in cost, functional reliability is good.
Description
Technical field
The present invention relates to temperature display technical fields, and in particular to a kind of thermometer shown based on full-color LED.
Background technique
It requires to carry out temperature display using thermometer in agriculture green house of vegetables, industry spot, public place etc..Traditional
Thermometer mostly uses greatly digital perhaps pointer and digital temperature shows liquid crystal display mode or numeral method side
Formula.
Liquid crystal display mode is most apparent the disadvantage is that brightness is low low with contrast, and visible angle is small, it is bad for eyes or
It is a kind of trouble that person elderly population, which reads data, is unfavorable when reading angular changes and when relatively remote reading.
Charactron uses LED self-luminous, high compared to liquid crystal brightness when displays temperature, but is not easy as temperature display
The height for distinguishing temperature is used only to display number, still not intuitive enough when relatively reading at a distance.
The temperature display reading data precision of pointer-type is poor, when data variation is larger, with the swing of pointer, hence it is evident that see
See the variation of data.When but in most cases, as temperature display, the process of dynamic change is little, refers in particular to
The temperature display of pin type is when more remote, it is not easy to read data.The height of temperature can not intuitively be expressed.
Traditional electronic thermometer also indicates the height of temperature other than using digital displaying temperature using red green LED
It is low.This thermometer cannot intuitively displays temperature variation, relatively read data at a distance and intuitive display be not especially square
Just.
Summary of the invention
To solve the above problems, the present invention provides a kind of thermometer shown based on full-color LED, it is traditional to solve
Thermometer remotely shows not intuitive, and brightness is not high, and cannot dynamically displays temperature the case where.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of thermometer shown based on full-color LED, including temperature-measuring module, full-color LED temperature display module, brightness
Measurement module, micro controller unit MCU and manual driver plate control switch；
The temperature-measuring module is connect with the micro controller unit MCU, for measuring the temperature of ambient enviroment, and will acquisition
To temperature digital amount signal be sent to micro controller unit MCU；
The brightness measurement module is connect with the micro controller unit MCU, to measure the brightness of ambient enviroment, and will acquisition
To brightness analog signals be sent to micro controller unit MCU；
The micro controller unit MCU is for receiving temperature-measuring module, the collected temperature signal of brightness measurement module and bright
Signal is spent, and completes to calculate the corresponding control command of analysis output to full-color LED display module, realizes the full-color LED
The regulation of display module；
The full-color LED temperature display module is formed using by WS2812B full color intelligence controllable light source, and WS2812B is full-color
Color intelligence controllable light source group vertical cartel at "-" type lattice structure, to show the variation of ambient temperature；WS2812B
Full color intelligence controllable light source group uses serial structure, i.e., the output of one full-color LED connects the defeated of next full-color LED
Out；
The manual driver plate control switch, output are status switch amount signals, connect, are used for the micro controller unit MCU
Carry out the selection of full-color LED display module Dynamically Announce mode.
Further, institute's full-color LED temperature display module includes the shell in strip rectangle structure, width 11mm,
Length is 1145mm, and every 18mm is equipped at intervals with a full-color LED lamp "-" type dot matrix on shell, shares 64 full-color LED lamps
"-" type dot matrix, design have the variation of 50 kinds of colors, can see the value and variation of temperature clearly in the range of distance is less than 20m.
Further, the full-color LED temperature display module reads temperature value using different LED color intervals,
When temperature display, at the scale every 5 LED, shown with the color different from other scales, and at each interval scale
Color be it is identical, read temperature data when, can obviously can be seen that there are colour spacing expression temperature scale data.Such as
The LED for showing 4 blue intervals, has 3 red LEDs on the 4th blue led, then it represents that 23 degree in zero temperature.
Further, the full-color LED temperature display module uses the colors such as green, cyan, purple, yellow, red
Combination display.
Further, the maximum temperature that the full-color LED temperature display module indicates is 64 degree above freezing, and minimum temperature is
50 degree of zubzero temperature, wherein zubzero temperature is shown using blue luminescence, if temperature is being higher than some limit range, uses feux rouges
Display.
Further, the full-color LED temperature display mould has the variation of 0-255 grades of gray scales fastly, to different
Environment shows different brightness.
Further, the full-color LED temperature display module at regular intervals, surrounding is shown with dynamic process
The variation of temperature.
The invention has the following advantages:
Thermometer of the invention measures ambient temperature by the micro controller unit MCU module, by the data of temperature
It is shown with high brightness full-color LED, the data of temperature are read by full-color LED interval.Pass through the brightness simultaneously
Measurement module measures the brightness of ambient enviroment, controls the brightness of the full-color LED temperature display.By the manual driver plate
After switching signal is read by the MCU, can in such a way that LED one by one is incremented by and refreshes displays temperature or to be fade-in fade-out
Mode displays temperature, thus realize ambient temperature variation Dynamic Display.In addition, the variation of either surrounding environment light causes
The variation of the fast brightness of color LED temperature display mould or the manual dial switch signal-obtaining cause dynamic aobvious
Show the variation of mode, all will not be too fast, avoid flashing caused by LED dynamic refresh.
Thermometer of the invention shows bright colors, and color change is abundant, and displays temperature is intuitive, and the long-range data that read are convenient, at
This is cheap, and functional reliability is good；It can be widely applied to agricultural greenhouse greenhouse, agricultural products fresh-keeping, storage, industry spot, engineering is applied
Work scene, the occasion of the intuitive displays temperature such as medicines.
Detailed description of the invention
Fig. 1 is a kind of system block diagram of the thermometer shown based on full-color LED of the embodiment of the present invention.
Fig. 2 is a kind of structural schematic diagram of the thermometer shown based on full-color LED of the embodiment of the present invention.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
As shown in Figure 1, a kind of thermometer shown based on full-color LED of the embodiment of the present invention, including temperature measure mould
Block 2, full-color LED temperature display module 4, brightness measurement module 3, micro controller unit MCU 1 and the control of manual driver plate are opened
Close 5；
The temperature-measuring module uses DS18B20, and output is the digital signal based on One_Wire agreement, with microcontroller list
The I/O port of first MCU connects, and is sent to micro controller unit for measuring the temperature of ambient enviroment, and by collected temperature signal
MCU；The brightness measurement module uses OPT101, and output is the voltage signal changed with ambient brightness, with microcontroller
The I/O port of unit MCU connects, and is sent to microcontroller list to measure the brightness of ambient enviroment, and by collected luminance signal
First MCU；The micro controller unit MCU for receive temperature-measuring module, the collected temperature signal of brightness measurement module and
Luminance signal, and complete to calculate the corresponding control command of analysis output to full-color LED display module, realize the full color
The regulation of LED display module.
As shown in Fig. 2, institute's full-color LED temperature display module includes the shell 7 in strip rectangle structure, width is
11mm, length 1145mm, a full-color LED lamp "-" type dot matrix 8 is installed by mounting hole 6 in every interval 18mm on shell 7,
64 full-color LED lamp "-" type dot matrix are shared, design has the variation of 50 kinds of colors, equal energy in the range of distance is less than 20m
See the value and variation of temperature clearly.Interval LED 9 is used as at interval of the full-color LED lamp "-" type dot matrix of 5 scale settings.It is described
The maximum temperature that full-color LED temperature display module indicates is 64 degree above freezing, and minimum temperature is 50 degree of zubzero temperature, wherein zero
Lower temperature is shown using blue luminescence, if temperature is being higher than some limit range, is shown with feux rouges.
The manual dial switch design has 4 and the I/O port of micro controller unit MCU is connect, for carrying out full color
The selection of LED display module Dynamically Announce mode, Dynamically Announce mode are 4 kinds, and first way is the number for directly displaying LED
Amount, directly displays, and shows that the color of result color and scale changes at regular intervals；The second way is from bottom to top
Add up display one by one in portion, there is the process of color change during display；The third mode is after directly displaying, and each LED's is bright
Degree, which gradually decreases, shows that gradually increasing display brightness again shows, that is, display of being fade-in fade-out.4th kind of mode is direct fixed color
It has been shown that, i.e. zubzero temperature use fixed blue luminescence to show, interval scale lavender；Three sections of displays of temperature above freezing point: temperature is small
In 15 degree above freezing, it is spaced with light blue display；Part green display of the temperature being greater than 15 degree and less than 28 degree；Temperature is greater than
28 degree and the part less than 32 degree, are shown with yellow, and temperature is greater than after 32 degree, use red display.
The full-color LED temperature display module is connect with micro controller unit MCU, complete using being controlled by WS2812B
Color LED vertical cartel at "-" type lattice structure, to show the variation of ambient temperature.
In structure, by temperature-measuring module, brightness measurement module, micro controller unit MCU, manual dial switch design
It is designed on one piece of pcb board.And full-color LED temperature display mould is disposed vertically fastly.And it is fixed with two 3mm screws.
The default location of manual dial switch are as follows: ON, OFF, OFF, OFF state.Overall supply voltage+5V, is connected by USB interface,
Overall power is in maximum brightness, 1400mW.
When work, the micro controller unit MCU first step is to read two temperature sensor values, and be compared, in error
It averages, saves in range.Second step is to read manual dial switch setting value, the Working mould set with manual dial switch
Formula works, and system design has 4 kinds of working conditions.Third step be read ambient brightness value, therefore sensor output
Analog signal carries AD conversion inside micro controller unit MCU and is converted into digital quantity, saves.4th step is will to read
The value of temperature sensor showed on full-color LED temperature display mould is fast in the form of full-color LED quantity.
Working frequency is set in 24MHz when micro controller unit MCU sends data, sends the data point of a color LED
It is 24, controls red, green and blue three primary colours respectively.Data by controlling three primary colours can control the color of LED.It is theoretical
Upper each displayable color of full-color LED has 16777216 kinds.
After analog quantity brightness value is converted to digital quantity by included AD conversion by micro controller unit MCU, control is originally complete
The method of the fast brightness of color LED temperature display mould, brightness control is under the premise of not changing original display color, will to be sent to
The numerical value of LED red-green-blue is reduced.
By reading manual dial switch setting value, control color LED temperature display mould is fast to be shown micro controller unit MCU
Show mode.First way is to directly display the quantity of LED, is directly displayed, and the color of display result color and scale is every one
The section time changes；The second way is the display that adds up one by one from bottom to top, there is the process of color change during display；
The third mode is that the brightness of each LED, which gradually decreases, shows that gradually increasing display brightness again shows, that is, fades in after directly displaying
It fades out display.4th kind of mode is that direct fixed color shows that is, zubzero temperature shows that interval scale is used with fixed blue luminescence
Lavender；Three sections of displays of temperature above freezing point: temperature is less than 15 degree above freezing, is spaced with light blue display；Temperature be greater than 15 degree and
Part green display less than 28 degree；Temperature is greater than 28 degree and the part less than 32 degree, is shown with yellow, and temperature is greater than 32 degree
After, use red display.
The mode for reading temperature is the different color differentiation display of every 5 color LEDs.The temperature display ratio read in this way
It is relatively intuitive.23 degree when the temperature such as normally shown, green, the indigo plant of the 5th display is shown in a color LED from the 1st to the 4th
Color, the 6th to the 9th display are still green, and the 10th is blue, the 11st to 14 be it is faint yellow, the 15th is blue,
16th is buff to 19, and the 20th is blue, and the 21 to 23rd is green, and the LED after the 24th is no longer shown.
The quantity that color LED is shown not only represents temperature, and readability is intuitive.And not according to the size color LED of temperature
Same color illustrates the height of temperature.If above-mentioned environment temperature is comfortably, to be shown with green at 25 degree or so.From 28 degree
When to 32 degree, with light yellow display, the red display of different brightness after 32 degree.
The thermometer structure that full-color LED of the invention is shown is simple, at low cost, and display brightness is high, and it is intuitive to read temperature.
The height of temperature is shown with different colors.It can also be according to the brightness of the variation control color LED of ambient brightness, due to this
The color LED brightness that body uses is very high, therefore still can see the size of temperature clearly when more remote.Dynamic changing process and
The variation of various colors so that the present invention have the effect of it is dazzling.It is adapted to most of environment of industrial or agricultural life.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (7)
1. a kind of thermometer shown based on full-color LED, it is characterised in that: including temperature-measuring module, full-color LED temperature
Display module, brightness measurement module, micro controller unit MCU and manual driver plate control switch；
The temperature-measuring module is connect with the micro controller unit MCU, for measuring the temperature of ambient enviroment, and will acquisition
To temperature digital amount signal be sent to micro controller unit MCU；
The brightness measurement module is connect with the micro controller unit MCU, to measure the brightness of ambient enviroment, and will acquisition
To brightness analog signals be sent to micro controller unit MCU；
The micro controller unit MCU for receiving temperature-measuring module, the collected temperature signal of brightness measurement module respectively
And luminance signal, and complete to calculate the corresponding control command of analysis output to full-color LED display module, realize the full color
The regulation of LED display module；
The full-color LED temperature display module is formed using by WS2812B full color intelligence controllable light source, and WS2812B is full-color
Color intelligence controllable light source group vertical cartel at "-" type lattice structure, to show the variation of ambient temperature；
The manual driver plate control switch, output are status switch amount signals, connect, are used for the micro controller unit MCU
Carry out the selection of full-color LED display module Dynamically Announce mode.
2. a kind of thermometer shown based on full-color LED as described in claim 1, it is characterised in that: institute's full-color LED temperature
Degree display module includes the shell in strip rectangle structure, width 11mm, length 1145mm, and every interval 18mm is set in shell
There is a full-color LED lamp "-" type dot matrix, shares 64.Full-color LED lamp "-" type dot matrix, design have the change of 50 kinds of colors
Change, can see the value and variation of temperature clearly in the range of distance is less than 20m.
3. a kind of thermometer shown based on full-color LED as described in claim 1, it is characterised in that: the full-color LED
Temperature display module reads temperature value using different LED color intervals, when temperature display, in the scale every 5 LED
Place, show with the color different from other scales, and the color at each interval scale be it is identical, reading temperature data when,
The temperature scale data of colour spacing expression can obviously be can be seen that there are.
4. a kind of thermometer shown based on full-color LED as described in claim 1, it is characterised in that: the full-color LED
Temperature display module is using green, cyan, purple, yellow, red combination display.
5. a kind of thermometer shown based on full-color LED as described in claim 1, it is characterised in that: the full-color LED
The maximum temperature that temperature display module indicates is 64 degree above freezing, and minimum temperature is 50 degree of zubzero temperature, wherein zubzero temperature uses
Blue luminescence is shown, if temperature is being higher than some limit range, is shown with feux rouges.
6. a kind of thermometer shown based on full-color LED as described in claim 1, it is characterised in that: the full-color LED
Temperature display mould has the variation of 0-255 grades of gray scales fastly, to show different brightness in different environment.
7. a kind of thermometer shown based on full-color LED as described in claim 1, it is characterised in that: the full-color LED
Temperature display module at regular intervals, the variation of ambient temperature is shown with dynamic process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910285309.2A CN109959456A (en) | 2019-04-10 | 2019-04-10 | A kind of thermometer shown based on full-color LED |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910285309.2A CN109959456A (en) | 2019-04-10 | 2019-04-10 | A kind of thermometer shown based on full-color LED |
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