CN109405996B - Thermometer and control method thereof - Google Patents
Thermometer and control method thereof Download PDFInfo
- Publication number
- CN109405996B CN109405996B CN201811210803.4A CN201811210803A CN109405996B CN 109405996 B CN109405996 B CN 109405996B CN 201811210803 A CN201811210803 A CN 201811210803A CN 109405996 B CN109405996 B CN 109405996B
- Authority
- CN
- China
- Prior art keywords
- temperature
- hydrogel
- light source
- layer
- color
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/20—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using thermoluminescent materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention provides a thermometer and a control method thereof, and relates to the technical field of electronic instruments. According to the invention, the temperature-controlled hydrogel layer and the excitation light source are arranged, the temperature-controlled hydrogel layer comprises at least one fluorescence area, the at least one fluorescence area comprises an aqueous solution and hydrogel arranged in the aqueous solution, fluorescent materials are arranged in the hydrogel, and the excitation light source is configured to irradiate the temperature-controlled hydrogel layer so as to excite the fluorescent materials to emit light with corresponding colors when the environmental temperature meets the phase change condition of the hydrogel. When the environmental temperature meets the phase change condition of the hydrogel, the hydrogel shrinks to expose the fluorescent material, the fluorescent material arranged in the hydrogel emits light with corresponding color under the irradiation of the excitation light source, and a user can obtain the environmental temperature only by observing the color of the light emitted by the thermometer, and the hydrogel is non-toxic and harmless and does not bring harm to the body of the user.
Description
Technical Field
The invention relates to the technical field of electronic instruments, in particular to a thermometer and a control method thereof.
Background
For convenience of daily life, most households are usually equipped with a thermometer at home, mainly for detecting the ambient temperature, which refers to the body temperature of the user, or the current temperature inside or outside the room.
At present, most of existing thermometers adopt a mercury type, the mercury type thermometer mainly utilizes the principle of expansion with heat and contraction with cold of mercury to measure the ambient temperature, but in the process of using the mercury type thermometer, the mercury type thermometer is easy to crash, and due to the fact that mercury has toxicity, the mercury volatilizes after crashing and can bring certain harmfulness to a body.
Disclosure of Invention
The invention provides a thermometer and a control method thereof, which aim to solve the problem that the existing mercury type thermometer brings harm to human bodies after being broken.
In order to solve the above problems, the present invention discloses a thermometer comprising: a temperature-controlled hydrogel layer and an excitation light source;
the temperature-controlled hydrogel layer comprises at least one fluorescent area, the at least one fluorescent area comprises an aqueous solution and hydrogel arranged in the aqueous solution, and a fluorescent material is arranged in the hydrogel;
the excitation light source is configured to irradiate the temperature-controlled hydrogel layer so as to excite the fluorescent material to emit light with a corresponding color when the ambient temperature meets the phase change condition of the hydrogel.
Preferably, when the temperature-controlled hydrogel layer includes at least two fluorescence areas, the phase transition temperatures corresponding to the hydrogels in different fluorescence areas are different, and the colors of the light emitted by the fluorescent materials disposed in the hydrogels in different fluorescence areas are different.
Preferably, the excitation Light source is an external blue Light LED (Light Emitting Diode) lamp or an ultraviolet LED lamp.
Preferably, the excitation light source is an excitation light source layer arranged on one side of the temperature-controlled hydrogel layer close to the object to be detected, and light emitted by the excitation light source layer is blue light or ultraviolet light.
Preferably, the excitation light source layer is any one of a point light source, a line light source and a surface light source.
Preferably, a hydrophobic transparent film wrapping the fluorescent material is arranged outside the fluorescent material.
Preferably, the thermometer further comprises a detection control layer arranged on one side of the temperature-controlled hydrogel layer away from the object to be detected, at least one color sensor is arranged at a position corresponding to each fluorescence area in the detection control layer, and a processing module connected with each color sensor is further arranged in the detection control layer;
the color sensor is configured to detect a color of light emitted by a fluorescent material within the fluorescent region;
the processing module includes a processor configured to calculate an ambient temperature from the color of light detected by the color sensor.
Preferably, the processing module further comprises a determiner and a wireless transmitter;
the determiner is connected with the processor and is configured to determine whether the ambient temperature exceeds a set threshold value;
the wireless transmitter is connected with the determiner and is configured to transmit the environment temperature and the alarm information to a designated terminal when the environment temperature exceeds the set threshold, and transmit the environment temperature to the designated terminal when the environment temperature does not exceed the set threshold.
Preferably, a signal amplifier is further disposed in the detection control layer;
the signal amplifier is respectively connected with the color sensor and the processing module, is configured to amplify the signals detected by the color sensor and sends the amplified signals to the processing module.
Preferably, the thermometer further comprises a display layer disposed on a side of the detection control layer away from the temperature-controlled hydrogel layer;
the display layer is configured to display the ambient temperature.
Preferably, the thermometer further comprises a comparison card, and the comparison card is provided with a color and a corresponding temperature value.
In order to solve the above problems, the present invention also discloses a control method of a thermometer, which is applied to the above thermometer, and the method includes:
detecting the color of light emitted by the fluorescent material within the fluorescent region;
from the detected color of the light, the ambient temperature is calculated.
Compared with the prior art, the invention has the following advantages:
by arranging the temperature-controlled hydrogel layer and the excitation light source, the temperature-controlled hydrogel layer comprises at least one fluorescence area, the at least one fluorescence area comprises an aqueous solution and hydrogel arranged in the aqueous solution, a fluorescent material is arranged in the hydrogel, and the excitation light source is configured to irradiate the temperature-controlled hydrogel layer so as to excite the fluorescent material to emit light with corresponding color when the environmental temperature meets the phase change condition of the hydrogel. When the environmental temperature meets the phase change condition of the hydrogel, the hydrogel shrinks to expose the fluorescent material, the fluorescent material arranged in the hydrogel emits light with corresponding color under the irradiation of the excitation light source, and a user can obtain the environmental temperature only by observing the color of the light emitted by the thermometer, and the hydrogel is non-toxic and harmless and does not bring harm to the body of the user.
Drawings
FIG. 1 is a schematic view of a first thermometer according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing a second thermometer according to an embodiment of the present invention;
FIG. 3 shows a top view of the thermometer shown in FIGS. 1 and 2;
FIG. 4 is a schematic view showing the structure of a third thermometer according to the embodiment of the present invention;
FIG. 5 is a schematic diagram showing a fourth thermometer according to an embodiment of the present invention;
FIG. 6 is a flow chart illustrating a method of controlling a thermometer according to an embodiment of the present invention;
FIG. 7 shows a block schematic diagram of a thermometer of an embodiment of the present invention;
FIG. 8 shows a workflow diagram of a thermometer detecting ambient temperature in an embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
Referring to fig. 1, a schematic structural view of a first thermometer according to an embodiment of the present invention is shown, fig. 2 is a schematic structural view of a second thermometer according to an embodiment of the present invention, fig. 3 is a top view of the thermometers shown in fig. 1 and 2, fig. 4 is a schematic structural view of a third thermometer according to an embodiment of the present invention, and fig. 5 is a schematic structural view of a fourth thermometer according to an embodiment of the present invention.
The embodiment of the invention provides a thermometer, which comprises a temperature control hydrogel layer 11 and an excitation light source 12; the temperature-controlled hydrogel layer 11 comprises at least one fluorescent area 110, the at least one fluorescent area 110 comprises an aqueous solution 111 and a hydrogel 112 disposed in the aqueous solution 111, and a fluorescent material is disposed in the hydrogel 112; and an excitation light source 12 configured to irradiate the temperature-controlled hydrogel layer 11 to excite the fluorescent material to emit light of a corresponding color when the ambient temperature meets the phase change condition of the hydrogel 112.
The hydrogel 112 has a structure with a certain proportion of hydrophilic groups and hydrophobic groups, and the change of temperature can affect the intramolecular and intermolecular forces between the hydrophilic groups and the hydrophobic groups and the aqueous solution 111, so that the structure of the hydrogel 112 changes and volume phase change occurs.
According to the swelling principle, the hydrogel is divided into two types, namely, the first type is thermal-expansion temperature-sensitive hydrogel, and the second type is thermal-shrinkage temperature-sensitive hydrogel. The thermal expansion temperature-sensitive hydrogel is in a shrinkage state when the temperature is lower than or equal to the phase transition temperature, and is in an expansion state when the temperature is higher than the phase transition temperature, and the thermal expansion temperature-sensitive hydrogel mainly comprises polyacrylamide, polyacrylic acid and the like; the thermal-shrinkage temperature-sensitive hydrogel is in a shrinkage state when the temperature is higher than or equal to the phase transition temperature, and is in an expansion state when the temperature is lower than the phase transition temperature, and the thermal-shrinkage temperature-sensitive hydrogel mainly comprises poly N-isopropyl acrylamide, poly N, N-diethyl propyl acrylamide, poly N-ethyl acrylamide, poly N-N-propyl acrylamide and the like.
For example, when the hydrogel 112 is poly-N-isopropylacrylamide (PNIPAM), the PNIPAM polymer chain has a certain proportion of hydrophobic groups (isopropyl groups) and hydrophilic groups (amide groups), and when the Temperature is lower than the LCST (Low Critical Solution Temperature), a strong hydrogen bonding force exists between the amide groups in the PNIPAM polymer chain and surrounding water molecules, so that the PNIPAM polymer chain has a better affinity with an aqueous Solution, at this time, the PNIPAM polymer chain is in an expanded state, and when the Temperature is increased above the LCST, the hydrophilic force between the water molecules and the amide groups is weakened, the hydrophobic effect of the isopropyl groups in the PNIPAM polymer chain is strengthened, so that the PNIPAM polymer chains mutually aggregate to form a hydrophobic layer through the hydrophobic effect, resulting in phase change of water molecule discharge, and at this time, the PNIPAM polymer chain is in a contracted state.
It should be noted that the hydrogel 112 in the embodiment of the present invention may be a thermal expansion temperature-sensitive hydrogel, and may also be a thermal contraction temperature-sensitive hydrogel.
When the hydrogel 112 is a thermal expansion temperature-sensitive hydrogel and the environmental temperature is lower than or equal to the phase transition temperature of the hydrogel 112, the hydrogel 112 contracts to expose the fluorescent material, the excitation light source 12 can excite the fluorescent material to emit light with a corresponding color, and the actually emitted light is composite light of the excitation light source and the light emitted by the fluorescent material; when the hydrogel 112 is a thermal expansion temperature-sensitive hydrogel and the environmental temperature is higher than the phase transition temperature of the hydrogel 112, the hydrogel 112 completely wraps the fluorescent material, and only the light emitted from the excitation light source 12 is emitted. Thus, when hydrogel 112 is a thermo-swelling temperature-sensitive hydrogel, the phase transition condition refers to an ambient temperature that is less than or equal to the phase transition temperature of hydrogel 112.
When the hydrogel 112 is a thermal shrinkage temperature-sensitive hydrogel and the environmental temperature is higher than or equal to the phase transition temperature of the hydrogel 112, the hydrogel 112 shrinks to expose the fluorescent material, the excitation light source 12 can excite the fluorescent material to emit light with a corresponding color, and the actually emitted light is composite light of the excitation light source and the light emitted by the fluorescent material; when the hydrogel 112 is a thermal-shrinkage temperature-sensitive hydrogel and the environmental temperature is lower than the phase transition temperature of the hydrogel 112, the hydrogel 112 completely wraps the fluorescent material, and only the light emitted from the excitation light source 12 is emitted. Thus, when the hydrogel 112 is a heat-shrinkable temperature-sensitive hydrogel, the phase-change condition refers to an ambient temperature that is greater than or equal to the phase-change temperature of the hydrogel 112.
The hydrogel 112 is opaque, preferably black hydrogel, and when the fluorescent material is completely wrapped by the black hydrogel, even if the excitation light source irradiates the temperature-controlled hydrogel layer 11, the fluorescent material cannot emit light at all, and only the excitation light source 12 emits light, so that the light emitted by the hydrogel 112 due to light transmission is prevented from including the light emitted by the fluorescent material, and the accuracy of temperature detection is improved.
The principle of detecting the environmental temperature according to the embodiment of the present invention is described below by taking the hydrogel 112 as a heat-shrinkable temperature-sensitive hydrogel as an example.
The temperature-controlled hydrogel layer 11 is actually a transparent hydrophobic film, the hydrophobic film is filled with an aqueous solution 111, the hydrogel 112 wrapped with the fluorescent material floats in the aqueous solution, when the environmental temperature is lower than the phase transition temperature of the hydrogel 112, the hydrogel 112 is in an expanded state, the hydrogel 112 completely wraps the fluorescent material, when the environmental temperature is higher than or equal to the phase transition temperature of the hydrogel 112, the hydrogel 112 contracts to expose the fluorescent material, the excitation light source 12 can excite the fluorescent material to emit light with corresponding colors, the environmental temperature exceeds the phase transition temperature to different degrees, the exposure degrees of the fluorescent material are different, the brightness of the excited color light is different, the color displayed after mixing with the light of the excitation light source is also different, and a user can obtain the environmental temperature by observing the color of the emitted light. The ambient temperature may refer to the body temperature of the user, or the current indoor and outdoor temperature
When the temperature-controlled hydrogel layer 11 includes only one fluorescent region 110, the hydrogel 112 in the fluorescent region 110 has only one phase transition temperature, and the fluorescent material disposed in the hydrogel 112 emits only one color of light.
For example, the phase transition temperature corresponding to the hydrogel 112 in the fluorescent region 110 is 37 ℃, the color of light emitted by the fluorescent material disposed in the hydrogel 112 is green, the light emitted by the excitation light source is blue light, when the environmental temperature is lower than 37 ℃, the hydrogel 112 is in an expanded state, the hydrogel 112 completely wraps the fluorescent material, the color emitted by the thermometer is only blue light, when the environmental temperature is higher than or equal to 37 ℃, the hydrogel 112 shrinks to expose the fluorescent material, the excitation light source 12 can excite the fluorescent material to emit green light, and the color emitted by the thermometer is cyan light formed by compounding the blue light and the green light.
In a preferred embodiment of the present invention, when the temperature-controlled hydrogel layer 11 includes at least two fluorescence areas 110, the phase transition temperatures of the hydrogels 112 in different fluorescence areas 110 are different, and the colors of the light emitted by the fluorescent materials disposed in the hydrogels 112 in different fluorescence areas 110 are different.
The temperature-controlled hydrogel layer 11 is divided into a plurality of fluorescence areas 110, each fluorescence area 110 includes an aqueous solution 111 and a hydrogel 112 disposed in the aqueous solution 111, a fluorescent material is disposed in the hydrogel 112, the phase transition temperatures of the hydrogels 112 in different fluorescence areas 110 are different, and the colors of light emitted by the fluorescent materials disposed in the hydrogels 112 in different fluorescence areas 110 are different.
Specifically, hydrogel 112 has different phase transition temperatures by varying the ratio of hydrophilic groups to hydrophobic groups in hydrogel 112.
As shown in fig. 3, the temperature-controlled hydrogel layer 11 includes 3 fluorescence regions 110, the phase transition temperatures of the hydrogels 112 in the fluorescence regions 110 from top to bottom are 36 ℃, 37 ℃ and 38 ℃, respectively, and the colors of the lights emitted by the fluorescent materials disposed in the hydrogels 112 in the fluorescence regions 110 from top to bottom are red, green and yellow, respectively, and assuming that the excitation light source 12 emits ultraviolet light, and only the uppermost fluorescence region 110 emits red light under the irradiation of the excitation light source 12, the ambient temperature can be determined to be between 36 ℃ and 37 ℃.
Of course, the more the number of the divided fluorescence areas 110 in the temperature-controlled hydrogel layer 11, the more accurate the detected ambient temperature.
As shown in fig. 1, the excitation light source 12 is an external blue LED lamp or an external uv LED lamp.
It should be noted that the type of light emitted by the excitation light source 12 is determined according to the material of the fluorescent material disposed in the hydrogel 112, when the fluorescent material is a common fluorescent material, the excitation light source 12 is a blue LED lamp, and when the fluorescent material is an ultraviolet fluorescent material, the fluorescent material can emit light of a corresponding color only under the excitation of ultraviolet light, and then the excitation light source 12 is an ultraviolet LED lamp.
When the thermometer is used for detecting the body temperature of a user, one side of the temperature control hydrogel layer 11 close to the skin of the user can be provided with replaceable double-sided adhesive, when the body temperature of the user needs to be detected, the double-sided adhesive is attached to any part of the body of the user, such as a wrist, and the external blue light LED lamp or ultraviolet light LED lamp is controlled to emit light to irradiate the temperature control hydrogel layer 11, so that the user can obtain the body temperature of the user only by observing the color of the light emitted by the thermometer.
As shown in fig. 2, the excitation light source 12 is an excitation light source layer disposed on one side of the temperature-controlled hydrogel layer 11 close to the object to be detected, and light emitted from the excitation light source layer is blue light or ultraviolet light; the excitation light source layer is any one of a point light source, a line light source and a surface light source.
Accordingly, the type of light emitted from the excitation light source 12 is also determined according to the material of the fluorescent material disposed in the hydrogel 112.
When the thermometer is used for detecting the body temperature of a user, the object to be detected is the skin of the user, and a replaceable double-sided adhesive tape can be arranged on the side of the excitation light source layer far away from the temperature-controlled hydrogel layer 11 to detect the body temperature of the user.
In order to obtain the ambient temperature more accurately, the thermometer shown in fig. 1 and 2 further includes a comparison card, and the comparison card is provided with a color and a corresponding temperature value.
After the thermometer sends out light, the light colour that will send contrasts with the colour on the contrast card to read the temperature value that corresponds and regard as ambient temperature, convenience of customers confirms current ambient temperature.
The thermometer shown in fig. 1 and 2 has a simple structure and low manufacturing cost.
As shown in fig. 4, the thermometer further includes a detection control layer 13 disposed on a side of the temperature-controlled hydrogel layer 11 away from the object to be detected, in the detection control layer 13, at least one color sensor 131 is disposed at a position corresponding to each fluorescence area, and a processing module connected to each color sensor 131 is further disposed in the detection control layer 13.
Wherein the color sensor 131 is configured to detect a color of light emitted by the fluorescent material within the fluorescent region 110; the processing module comprises a processor configured to calculate the ambient temperature from the color of the light detected by the color sensor 131.
In the detection control layer 13, at least one color sensor 131 is disposed at a position corresponding to each fluorescence area 110, the color sensor 131 detects the color of light emitted from the temperature-controlled hydrogel layer 11, generates a corresponding signal, and sends the generated signal to the processing module, the processor in the processing module calculates the ambient temperature by using an embedded algorithm according to the signal sent by each color sensor 131, for example, a corresponding relationship between the color and the temperature can be established in the processor by a machine learning algorithm such as a neural network, and when the signal sent by the color sensor 131 is received, the ambient temperature is calculated according to the corresponding relationship between the color and the temperature.
In a preferred embodiment of the present invention, the processing module further comprises a determiner and a wireless transmitter; the determiner is connected with the processor and is configured to determine whether the ambient temperature exceeds a set threshold value; the wireless transmitter is connected with the determiner and is configured to transmit the ambient temperature and the warning information to the designated terminal when the ambient temperature exceeds a set threshold, and to transmit the ambient temperature to the designated terminal when the ambient temperature does not exceed the set threshold.
In addition, a signal amplifier is also arranged in the detection control layer; the signal amplifier is connected to the color sensor 131 and the processing module, respectively, and configured to amplify the signal detected by the color sensor and transmit the amplified signal to the processing module. In the embodiment of the present invention, when the ambient temperature is measured by using the thermometer, the excitation light source 12 is controlled to irradiate the temperature-controlled hydrogel layer 11, so that when the ambient temperature meets the phase change condition of the hydrogel 112, the fluorescent material is excited to emit light of a corresponding color, the color sensor 131 detects the color of the light emitted from the temperature-controlled hydrogel layer 11 and generates a corresponding signal, the generated signal is sent to the signal amplifier, the signal amplifier amplifies the signal detected by the color sensor 131 and sends the signal to the processor in the processing module, the processor calculates the ambient temperature according to the signal sent by the signal amplifier and sends the calculated ambient temperature to the determiner, a set threshold is arranged inside the determiner for determining whether the ambient temperature exceeds the set threshold, when the ambient temperature exceeds the set threshold, alarm information is generated, and the ambient temperature and the alarm information are sent to the designated terminal by the wireless transmitter, the wireless receiver of the appointed terminal sends the environment temperature and the alarm information to a processor of the appointed terminal after receiving the environment temperature and the alarm information sent by the wireless transmitter, the processor of the appointed terminal controls a display screen of the appointed terminal to display the environment temperature and the alarm information, when the environment temperature does not exceed a set threshold value, the environment temperature is sent to the appointed terminal through the wireless transmitter, specifically, the wireless receiver of the appointed terminal sends the environment temperature to the processor of the appointed terminal after receiving the environment temperature sent by the wireless transmitter, and the processor of the appointed terminal controls the display screen of the appointed terminal to display the environment temperature.
For example, when the thermometer is used for detecting the body temperature of a user, two setting thresholds, namely a low fever setting threshold and a high fever setting threshold, may be set inside the determiner.
The Wireless Transmitter can be bluetooth or Wifi (Wireless Fidelity ) and the like, when the Wireless Transmitter is Wifi, the Wireless Transmitter can adopt unart (Universal Asynchronous Receiver/Transmitter ) -Wifi module, the unart-Wifi module is an embedded module which is based on an unart interface and accords with Wifi Wireless network standard, a built-in Wireless network Protocol IEEE802.11 Protocol stack and a TCP/IP (Transmission Control Protocol/Internet Protocol) Protocol stack are arranged, and the unart-Wifi module can reduce power consumption.
In a specific implementation, the Uart-Wifi module may obtain an SSID (Service Set Identifier) and a password of an AP (Access Point) to be connected from a Wifi configuration file, and then Access the Wifi wireless network. When the wireless transmitter and the wireless receiver of the appointed terminal are connected into the unified Wifi network, the shared information can be transmitted and received.
As shown in fig. 5, the thermometer further includes a display layer 14 disposed on the side of the detection control layer 13 remote from the temperature-controlled hydrogel layer 11; a display layer 14 configured to display an ambient temperature.
When the processing module calculates the ambient temperature according to the color of the light detected by the color sensor 131, the ambient temperature is directly displayed on the display layer 14.
The Display layer may be an LCD (Liquid Crystal Display) or an OLED (Organic Light-Emitting Diode) Display panel.
According to the thermometer shown in fig. 4 and 5, the user does not need to manually distinguish the ambient temperature, the ambient temperature can be accurately calculated through the temperature sensor and the processing module, and the detection precision of the ambient temperature is higher.
In a preferred embodiment of the invention, a hydrophobic transparent film is arranged outside the fluorescent material and wraps the fluorescent material.
In order to prevent the loss of the service life of the fluorescent material caused by the aqueous solution 111, the fluorescent material is wrapped and encapsulated by a hydrophobic transparent film and then placed in the hydrogel 112, so that the service life of the thermometer is prolonged.
In an embodiment of the present invention, by providing a temperature-controlled hydrogel layer and an excitation light source, the temperature-controlled hydrogel layer includes at least one fluorescent region, the at least one fluorescent region includes an aqueous solution and a hydrogel disposed in the aqueous solution, a fluorescent material is disposed in the hydrogel, and the excitation light source is configured to irradiate the temperature-controlled hydrogel layer, so as to excite the fluorescent material to emit light of a corresponding color when an ambient temperature meets a phase change condition of the hydrogel. When the environmental temperature meets the phase change condition of the hydrogel, the hydrogel shrinks to expose the fluorescent material, the fluorescent material arranged in the hydrogel emits light with corresponding color under the irradiation of the excitation light source, and a user can obtain the environmental temperature only by observing the color of the light emitted by the thermometer, and the hydrogel is non-toxic and harmless and does not bring harm to the body of the user.
Example two
Referring to fig. 6, a flowchart of a method for controlling a thermometer according to an embodiment of the present invention is shown, which may specifically include the following steps:
In the embodiment of the present invention, the thermometer includes a temperature-controlled hydrogel layer 11 and an excitation light source 12; the temperature-controlled hydrogel layer 11 comprises at least one fluorescent area 110, the at least one fluorescent area 110 comprises an aqueous solution 111 and a hydrogel 112 disposed in the aqueous solution 111, and a fluorescent material is disposed in the hydrogel 112; and an excitation light source 12 configured to irradiate the temperature-controlled hydrogel layer 11 to excite the fluorescent material to emit light of a corresponding color when the ambient temperature meets the phase change condition of the hydrogel 112.
The thermometer further comprises a detection control layer 13 arranged on the other side of the temperature controlled hydrogel layer 11, wherein at least one color sensor 131 is arranged in the detection control layer 13 at a position corresponding to each fluorescent area 110, and the color sensor 131 is configured to detect the color of light emitted by the fluorescent material in the fluorescent area 110.
When the thermometer is used to measure the ambient temperature, the excitation light source 12 is controlled to irradiate the temperature-controlled hydrogel layer 11 to excite the fluorescent material to emit light of a corresponding color when the ambient temperature meets the phase transition condition of the hydrogel 112, and the color sensor 131 detects the color of the light emitted from the temperature-controlled hydrogel layer 11.
In step 602, the ambient temperature is calculated based on the color of the detected light.
In the embodiment of the present invention, the detection control layer 13 is further provided with a processing module respectively connected to each color sensor 131, and the processing module includes a processor configured to calculate the ambient temperature according to the color of the light detected by the color sensor 131.
The color sensor 131 generates a corresponding signal after detecting the color of the light emitted from the temperature-controlled hydrogel layer 11, and transmits the generated signal to the processing module, and the processor in the processing module calculates the ambient temperature by using an embedded algorithm according to the signal transmitted by each color sensor 131.
In one embodiment of the invention, the processing module further comprises a determiner and a wireless transmitter; the determiner is connected with the processor and is configured to determine whether the ambient temperature exceeds a set threshold value; the wireless transmitter is connected with the determiner and is configured to transmit the ambient temperature and the warning information to the designated terminal when the ambient temperature exceeds a set threshold, and to transmit the ambient temperature to the designated terminal when the ambient temperature does not exceed the set threshold.
In addition, a signal amplifier is also arranged in the detection control layer; the signal amplifier is connected to the color sensor 131 and the processing module, respectively, and configured to amplify the signal detected by the color sensor and transmit the amplified signal to the processing module.
Referring to FIG. 7, a block schematic diagram of a thermometer of an embodiment of the present invention is shown.
The temperature measurement module refers to a temperature-control hydrogel layer 11 and an excitation light source 12, is in non-contact connection with the sensor module, and comprises a color sensor 131 and a signal amplifier connected with the color sensor 131; the processing module comprises a processor, a determiner and a wireless transmitter which are sequentially connected, and the signal amplifier is connected with the processor through an interface of the processing module; the appointed terminal comprises a wireless receiver and a display screen, and a wireless transmitter in the processing module is wirelessly connected with the wireless receiver of the appointed terminal.
Referring to FIG. 8, a flow chart of the operation of the thermometer to detect ambient temperature in accordance with an embodiment of the present invention is shown.
Assuming that the temperature-controlled hydrogel layer 11 includes N fluorescence areas 110, a color sensor, namely, color sensor 1, color sensor 2 to color sensor N, is disposed at a position corresponding to each fluorescence area 110, when the temperature measurement module starts to measure the ambient temperature, that is, the excitation light source 12 irradiates the temperature-controlled hydrogel layer 11, so as to excite the fluorescent material to emit light of a corresponding color when the ambient temperature meets the phase change condition of the hydrogel 112, each color sensor respectively identifies the fluorescent color emitted by the corresponding fluorescence area 110, for example, the color sensor 1 identifies the fluorescent color 1, the color sensor 2 identifies the fluorescent color 2, the color sensor N identifies the fluorescent color N, each color sensor respectively identifies the fluorescent color emitted by the corresponding fluorescence area 110, generates a corresponding signal, and transmits the generated signal to the signal amplifier through the interface, the signal amplifier amplifies signals detected by each color sensor and sends the signals to a processor in the processing module, the processor calculates the environment temperature according to the signals sent by the signal amplifier and sends the calculated environment temperature to a determiner, a set threshold is arranged in the determiner and used for determining whether the environment temperature exceeds the set threshold or not, when the environment temperature exceeds the set threshold, alarm information is generated and sent out through a wireless transmitter, a wireless receiver of the appointed terminal receives the environment temperature and the alarm information sent by the wireless transmitter and sends the environment temperature and the alarm information to the processor of the appointed terminal, the processor of the appointed terminal controls a display screen of the appointed terminal to display the environment temperature and the alarm information, and when the environment temperature does not exceed the set threshold, the wireless transmitter sends out the environment temperature, and the wireless receiver of the appointed terminal receives the ambient temperature sent by the wireless transmitter and sends the ambient temperature to the processor of the appointed terminal, and the processor of the appointed terminal controls the display screen of the appointed terminal to display the ambient temperature.
In another embodiment of the present invention, the thermometer further comprises a display layer 14 disposed on a side of the detection control layer 13 remote from the temperature-controlled hydrogel layer 11; a display layer 14 configured to display an ambient temperature.
When the processing module calculates the ambient temperature according to the color of the light detected by the color sensor 131, the ambient temperature is directly displayed on the display layer 14.
In the embodiment of the present invention, the ambient temperature is calculated based on the color of the detected light by detecting the color of the light emitted from the fluorescent material in the fluorescent region. When the environmental temperature meets the phase change condition of the hydrogel, the hydrogel shrinks to expose the fluorescent material, the fluorescent material arranged in the hydrogel emits light with corresponding color under the irradiation of the excitation light source, the environmental temperature is obtained by detecting the color of the light emitted by the fluorescent material in the fluorescent region, the detection precision is higher, and the hydrogel is non-toxic and harmless and does not bring harm to the body of a user.
For simplicity of explanation, the foregoing method embodiments are described as a series of acts or combinations, but it should be understood by those skilled in the art that the present invention is not limited by the order of acts or acts described, as some steps may occur in other orders or concurrently with other steps in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The thermometer and the control method thereof provided by the invention are described in detail, the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A thermometer, comprising: a temperature-controlled hydrogel layer and an excitation light source;
the temperature-controlled hydrogel layer comprises at least one fluorescent area, the at least one fluorescent area comprises an aqueous solution and hydrogel arranged in the aqueous solution, and a fluorescent material is arranged in the hydrogel;
the excitation light source is configured to irradiate the temperature-controlled hydrogel layer so as to excite the fluorescent material to emit light with a corresponding color when the ambient temperature meets the phase change condition of the hydrogel;
when the temperature-controlled hydrogel layer comprises at least two fluorescence areas, the corresponding phase-change temperatures of the hydrogels in different fluorescence areas are different, and the colors of the light emitted by the fluorescent materials arranged in the hydrogels in different fluorescence areas are different;
the thermometer also comprises a detection control layer arranged on one side of the temperature control hydrogel layer away from the object to be detected, at least one color sensor is arranged at the position corresponding to each fluorescence area in the detection control layer, and a processing module connected with each color sensor is also arranged in the detection control layer;
the color sensor is configured to detect a color of light emitted by a fluorescent material within the fluorescent region;
the processing module comprises a processor configured to calculate an ambient temperature from the color of the light detected by the color sensor;
wherein, the light ray that excitation light source sent is the blue light.
2. A thermometer according to claim 1 wherein said excitation light source is an externally positioned blue LED light.
3. The thermometer according to claim 1, wherein the excitation light source is an excitation light source layer disposed on a side of the temperature-controlled hydrogel layer close to the object to be detected, and light emitted from the excitation light source layer is blue light.
4. A thermometer according to claim 3, wherein said excitation light source layer is any one of a point light source, a line light source and an area light source.
5. A thermometer according to claim 1 wherein said fluorescent material is externally provided with a hydrophobic transparent film which encases said fluorescent material.
6. A thermometer according to claim 1 wherein said processing module further comprises an arbiter and a wireless transmitter;
the determiner is connected with the processor and is configured to determine whether the ambient temperature exceeds a set threshold value;
the wireless transmitter is connected with the determiner and is configured to transmit the environment temperature and the alarm information to a designated terminal when the environment temperature exceeds the set threshold, and transmit the environment temperature to the designated terminal when the environment temperature does not exceed the set threshold.
7. The thermometer according to claim 1, wherein a signal amplifier is further provided in the detection control layer;
the signal amplifier is respectively connected with the color sensor and the processing module, is configured to amplify the signals detected by the color sensor and sends the amplified signals to the processing module.
8. A thermometer according to claim 1 further comprising a display layer disposed on a side of said detection control layer remote from said temperature controlled hydrogel layer;
the display layer is configured to display the ambient temperature.
9. A thermometer according to any one of claims 1 to 5 further including a contrast card on which is provided a colour and a corresponding temperature value.
10. A control method of a thermometer, characterized by being applied to the thermometer according to any one of claims 6 to 8, the method comprising:
detecting the color of light emitted by the fluorescent material within the fluorescent region;
from the detected color of the light, the ambient temperature is calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811210803.4A CN109405996B (en) | 2018-10-17 | 2018-10-17 | Thermometer and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811210803.4A CN109405996B (en) | 2018-10-17 | 2018-10-17 | Thermometer and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109405996A CN109405996A (en) | 2019-03-01 |
| CN109405996B true CN109405996B (en) | 2021-01-08 |
Family
ID=65468465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811210803.4A Active CN109405996B (en) | 2018-10-17 | 2018-10-17 | Thermometer and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109405996B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630257B (en) * | 2020-12-28 | 2024-03-22 | 宁波铭瑞中兴电子科技有限公司 | Glass water tank monitoring method, system, intelligent terminal and storage medium |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9358195B2 (en) * | 2002-05-02 | 2016-06-07 | Basf Se | Stabilized body care products, household products, textiles and fabrics |
| CN1649457A (en) * | 2004-01-30 | 2005-08-03 | 铼宝科技股份有限公司 | Color adjustable plane color conversion organic device and producing method |
| CN1318539C (en) * | 2004-04-23 | 2007-05-30 | 中国科学院化学研究所 | Luminous microsphere and its production method and water dispersion system |
| EP2076756A2 (en) * | 2006-10-12 | 2009-07-08 | Koninklijke Philips Electronics N.V. | Environmental state detection with hydrogel based fully integrated transducer device |
| EP2395345A3 (en) * | 2008-04-17 | 2013-10-16 | QIAGEN Lake Constance GmbH | Fluorescence standard and use of same |
| CN103175625B (en) * | 2013-02-25 | 2015-07-29 | 上海大学 | Based on the optic temperature sensor of temperature sensitive cyclodextrin, its preparation method and application |
| WO2015030664A1 (en) * | 2013-08-30 | 2015-03-05 | Everyday Solutions Sweden Ab | Polymer temperature indicating device |
| CN107921398A (en) * | 2015-08-04 | 2018-04-17 | 剑桥企业有限公司 | material and device |
| CN107238448B (en) * | 2017-05-08 | 2019-06-21 | 东南大学 | A kind of metal phasmon patch type temperature and infrared sensor |
-
2018
- 2018-10-17 CN CN201811210803.4A patent/CN109405996B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109405996A (en) | 2019-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112888408B (en) | Ostomy appliance comprising a thermal sensor | |
| KR101205785B1 (en) | A system informing expiration date of food by determining end point of tti and a method informing expiration date of food using the same | |
| US7275866B2 (en) | Digital thermometer | |
| CN109405996B (en) | Thermometer and control method thereof | |
| US20160278011A1 (en) | Wireless communication device, wireless communication system, wireless communication method, non-transitory recording medium, central and peripheral | |
| ATE325717T1 (en) | DEVICE FOR DETECTING AND COMMUNICATING OPERATING PROPERTIES OF TIRES AND METHOD THEREOF | |
| ATE479217T1 (en) | CONNECTION SYSTEM FOR TRANSMITTING DATA AND ENERGY SUPPLY SIGNALS | |
| CN106461534B (en) | Biochemical reaction system | |
| WO2009045447A2 (en) | Gas measuring device and method of operating the same | |
| CN108139255A (en) | Flow sensor | |
| CN110914671B (en) | Method, apparatus and computer program product for controlling components of a detection device | |
| CN115236135B (en) | Baseline calibration method for gas sensor, control device and gas sensor | |
| CN105004446B (en) | The hot temperature measuring equipment of magnetic suck lathe and temp measuring method | |
| JP7108468B2 (en) | reading processor | |
| CN105476611A (en) | Miniature wireless body temperature monitoring system and body temperature monitoring method | |
| KR100988593B1 (en) | Signboard | |
| US10823590B2 (en) | Environmental sensor | |
| EP2151146B1 (en) | Reliable lighting system | |
| JP2006288835A (en) | Simplified instrument for measuring arterial oxygen saturation | |
| EA200901561A1 (en) | HEATING SYSTEM | |
| KR20170028782A (en) | Patch type thermometer by measuring infrared rays | |
| JP2008139183A (en) | Temperature measuring device | |
| US9970823B2 (en) | Method for displaying different temperatures by electronic thermometer and electronic thermometer | |
| CN216050295U (en) | Multi-functional bluetooth infrared radiation thermometer | |
| CN113108924B (en) | Biological friendly human body temperature alarm flexible electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |