CN111207839B - Infrared body temperature measuring method and device and terminal equipment - Google Patents
Infrared body temperature measuring method and device and terminal equipment Download PDFInfo
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- CN111207839B CN111207839B CN202010228766.0A CN202010228766A CN111207839B CN 111207839 B CN111207839 B CN 111207839B CN 202010228766 A CN202010228766 A CN 202010228766A CN 111207839 B CN111207839 B CN 111207839B
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- 230000036760 body temperature Effects 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 60
- 238000013021 overheating Methods 0.000 claims abstract description 57
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- 238000004590 computer program Methods 0.000 claims description 17
- 238000005282 brightening Methods 0.000 description 10
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- 230000007423 decrease Effects 0.000 description 6
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- 238000004861 thermometry Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002045 lasting effect Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
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- 238000010168 coupling process Methods 0.000 description 3
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- 230000003203 everyday effect Effects 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
- G01J5/0025—Living bodies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/48—Thermography; Techniques using wholly visual means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/80—Calibration
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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
- G01K1/20—Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/20—Clinical contact thermometers for use with humans or animals
- G01K13/223—Infrared clinical thermometers, e.g. tympanic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/005—Calibration
Abstract
The invention provides an infrared body temperature measuring method, an infrared body temperature measuring device and terminal equipment, wherein the infrared body temperature measuring device comprises: judging whether the terminal equipment is in an overheat state or not according to the equipment temperature parameter; when the terminal equipment is not in an overheating state, entering a conventional infrared temperature measurement mode, and outputting the human body temperature of a target human body; when the terminal equipment is in an overheat state, prompting a user to enter an environment temperature calibration mode to obtain a calibrated environment temperature; and obtaining the human body temperature of the target human body according to the calibrated environment temperature. The invention provides a more humanized method, which can calibrate the ambient temperature when necessary, reduce the complexity of the operation of infrared body temperature measurement and improve the user experience.
Description
Technical Field
The invention relates to the technical field of body temperature measurement, in particular to an infrared body temperature measurement method and device and terminal equipment.
Background
In recent years, as people pay more attention to medical health, the demand of consumers for convenient and fast body temperature measurement is stronger, wherein the use of an infrared temperature sensor for detecting the body temperature is one of the mainstream schemes in the market at present.
The body temperature of a person is relatively and stable under normal conditions, and the surface temperature (for example, forehead temperature) of the human body changes with the ambient temperature, so that in order to ensure the accuracy of the measured body temperature of the person, the surface temperature of the human body needs to be corrected by the ambient temperature, and therefore the ambient temperature needs to be measured firstly.
Usually, the infrared temperature measuring device includes an infrared temperature sensor, and also has an NTC temperature sensor (NTC for short) or a PN junction temperature sensor (PTAT for short) built therein for measuring the cavity temperature of the infrared temperature sensor. When the cavity temperature of the infrared temperature sensor is consistent with the external environment temperature, the cavity temperature can be used as the external environment temperature, and the surface temperature of the human body can be corrected, so that the accuracy of final body temperature measurement is guaranteed.
However, when the infrared temperature measuring device is arranged in a smart phone or smart wearable equipment, the terminal equipment has requirements on water resistance and is good in airtightness, and temperature sensors such as NTC/PTAT are inevitably in an airtight cavity. When the terminal equipment has large heat productivity in the use process, the NTC/PTAT temperature sensor and other temperature sensors cannot accurately measure the ambient temperature, the measured temperature can only be used as the cavity temperature of the infrared temperature sensor and cannot represent the ambient temperature around the human body, and further the body temperature of the human body cannot be accurately obtained.
In order to solve the above problems, there is a solution in the prior art: measuring the temperature of a surrounding object or air by using an infrared temperature sensor, and taking the temperature as the external environment temperature; and measuring the forehead temperature of the human body by using an infrared temperature sensor, and obtaining the body temperature of the human body according to the forehead temperature and the external environment temperature. However, in the method, the user needs to perform two times of infrared temperature measurement operation during infrared body temperature measurement, the measurement steps are increased, the overall measurement time is prolonged, and the user experience is not good. And if the complete machine does not generate heat, the accurate body temperature can be obtained by direct detection, and the environment temperature is not required to be calibrated by measuring the temperature of surrounding objects or air.
Therefore, it is necessary to provide a more humanized method for calibrating the ambient temperature when necessary, thereby reducing the complexity of the infrared body temperature measurement operation and improving the user experience.
Disclosure of Invention
One of the purposes of the present invention is to provide an infrared body temperature measuring method and apparatus, and a terminal device, in order to overcome at least some of the disadvantages in the prior art.
The technical scheme provided by the invention is as follows:
an infrared body temperature measurement method comprising: judging whether the terminal equipment is in an overheat state or not according to the equipment temperature parameter; when the terminal equipment is not in an overheating state, entering a conventional infrared temperature measurement mode, and outputting the human body temperature of a target human body; when the terminal equipment is in an overheat state, prompting a user to enter an environment temperature calibration mode to obtain a calibrated environment temperature; and obtaining the human body temperature of the target human body according to the calibrated environment temperature.
Further, the determining whether the terminal device is in an overheat state according to the device temperature parameter includes: counting the continuous screen-on time of the terminal equipment; and when the continuous screen lightening time is greater than a first screen lightening threshold, the terminal equipment is in an overheating state.
Further, the counting the continuous screen-on time of the terminal device includes: and dynamically updating the continuous screen lightening time of the terminal equipment according to the generated screen blacking time.
Further, setting a first bright screen threshold according to at least one of the following factors of the terminal equipment: location, season, temperature.
Further, the determining whether the terminal device is in an overheat state according to the device temperature parameter further includes: acquiring a reference temperature of the terminal equipment; obtaining the internal temperature change of the terminal equipment according to the current internal temperature and the reference temperature; and when the internal temperature change is larger than a first temperature threshold, the terminal equipment is in an overheating state.
Further, the obtaining of the reference temperature of the terminal device includes: and when the screen blacking time is greater than a third screen blacking threshold value, updating the reference temperature by using the internal temperature at the next screen lightening after the screen blacking.
The invention also provides an infrared body temperature measuring device, comprising: infrared temperature sensor and inside temperature sensor still include: the overheating judgment module is used for judging whether the terminal equipment is in an overheating state or not according to the equipment temperature parameter; the conventional temperature measurement module is used for entering a conventional infrared temperature measurement mode and outputting the body temperature of a target human body when the terminal equipment is not in an overheated state; the calibration temperature measurement module is used for prompting a user to enter an environment temperature calibration mode when the terminal equipment is in an overheat state, so as to obtain a calibrated environment temperature; and obtaining the human body temperature of the target human body according to the calibrated environment temperature.
Further, the overheat determining module includes: the screen-on duration counting unit is used for counting the continuous screen-on time of the terminal equipment; the overheating judging module is further configured to, when the continuous screen-on time is greater than a first screen-on threshold, enable the terminal device to be in an overheating state.
Further, the overheat determining module further includes: the internal temperature rise calculating unit is used for acquiring the reference temperature of the terminal equipment; obtaining the internal temperature change of the terminal equipment according to the current internal temperature and the reference temperature; the overheating judging module is further configured to, when the internal temperature change is greater than a first temperature threshold, enable the terminal device to be in an overheating state.
The present invention also provides a terminal device, including: a memory for storing a computer program; and the processor is used for realizing the infrared body temperature measuring method when the computer program is run.
The infrared body temperature measuring method, the infrared body temperature measuring device and the terminal equipment provided by the invention can at least bring the following beneficial effects: through the inside temperature rise condition according to lasting bright screen time and/or inside temperature change automatic identification terminal equipment, the loaded down with trivial details degree of infrared measurement mode has both been guaranteed infrared body temperature measurement's accuracy under controllable condition, also lets the convenience of using simultaneously improve, has promoted user experience.
Drawings
The above features, technical features, advantages and implementation manners of an infrared body temperature measuring method and device, and a terminal device will be further described in the following detailed description of preferred embodiments in a clearly understandable manner with reference to the accompanying drawings.
FIG. 1 is a flow chart of one embodiment of an infrared body temperature measurement method of the present invention;
FIG. 2 is a flow chart of another embodiment of an infrared body temperature measurement method of the present invention;
FIG. 3 is a flow chart of another embodiment of an infrared body temperature measurement method of the present invention;
FIG. 4 is a flow chart of another embodiment of an infrared body temperature measurement method of the present invention;
FIG. 5 is a schematic structural diagram of one embodiment of an infrared body temperature measuring device of the present invention;
FIG. 6 is a schematic structural diagram of another embodiment of an infrared body temperature measuring device of the present invention;
FIG. 7 is a schematic structural diagram of another embodiment of an infrared body temperature measuring device of the present invention;
FIG. 8 is a schematic structural diagram of another embodiment of an infrared body temperature measuring device of the present invention;
FIG. 9 is a block diagram of one embodiment of a terminal device of the present invention;
the reference numbers illustrate:
100. the temperature measuring device comprises an overheating judging module, a conventional temperature measuring module 200, a calibration temperature measuring module 300, a screen-on duration counting unit 110, an internal temperature rise calculating unit 120, a terminal device 20, a memory 21, a processor 22 and a computer program 23.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically depicted, or only one of them is labeled. In this document, "one" means not only "only one" but also a case of "more than one".
In one embodiment of the present invention, as shown in fig. 1, an infrared body temperature measurement method includes:
step S100 determines whether the terminal device is in an overheat state according to the device temperature parameter.
Specifically, terminal equipment refers to the electronic equipment who has infrared body temperature measurement function, indicates portable electronic equipment such as smart mobile phone, intelligent wearing equipment especially. Intelligence wearing equipment includes intelligent bracelet, intelligent wrist-watch.
The device temperature parameter refers to a parameter capable of reflecting the internal temperature change of the terminal device, such as the continuous screen-on time. The longer the continuous screen-on time is, the higher the internal temperature of the terminal equipment is; when the user does not operate the terminal equipment, the terminal equipment gradually enters a black screen state, and the internal temperature gradually decreases.
For another example, the temperature measured by an internal temperature sensor such as an NTC/PTAT integrated inside the terminal device may be directly reflected on the internal temperature of the terminal device. And judging the temperature rise condition of the equipment according to the change of the internal temperature.
When the internal temperature of the terminal equipment is judged to be changed too much according to the equipment temperature parameters, for example, if the internal temperature is larger than a certain threshold, the terminal equipment is considered to be in an overheating state. At this time, if a conventional infrared temperature measurement method is adopted, the temperature rise of the equipment can cause the measured ambient temperature to have larger deviation, and further cause the inaccurate measurement of the body temperature of the human body.
And S200, when the terminal equipment is not in an overheated state, entering a conventional infrared temperature measurement mode and outputting the body temperature of the target human body.
Under a conventional infrared temperature measurement mode, the human body temperature of the target human body can be obtained only by measuring the surface temperature of the human body once by using the infrared temperature sensor.
Step S300, when the terminal equipment is in an overheat state, prompting a user to enter an environment temperature calibration mode to obtain a calibrated environment temperature;
and step S400, obtaining the human body temperature of the target human body according to the calibrated environment temperature.
Specifically, the ambient temperature calibration mode requires that the user calibrate the ambient temperature first when using the infrared body temperature measurement.
The calibration method has various methods, and the user can calibrate the ambient temperature according to the prompting mode. In one embodiment, the user is prompted to suspend use of the terminal device, and the terminal device is allowed to rest for a period of time, such as half an hour, and then temperature measurement operation is continued. The principle is that the internal temperature of the terminal equipment is gradually cooled down, and then the infrared temperature sensor is used for measuring the surface temperature of the human body once according to the conventional infrared temperature measurement mode to obtain the accurate body temperature of the human body.
In another embodiment, the temperature of an object around the target human body is measured with an infrared temperature sensor and taken as the calibrated ambient temperature. And then the infrared temperature sensor is used for measuring the surface temperature of the human body once. And correcting the surface temperature of the human body by using the calibrated environment temperature to obtain the accurate body temperature of the human body. This approach requires two infrared thermometry operations.
This embodiment, through the inside temperature rise condition of automatic identification terminal equipment, calibrate ambient temperature as necessary to infrared temperature measurement operation has been simplified to the big probability, has promoted user experience.
In another embodiment of the present invention, as shown in fig. 2, an infrared body temperature measuring method includes:
step S110, counting the continuous screen-on time of the terminal equipment;
step S120, judging whether the continuous screen-on time is greater than a first screen-on threshold;
step S130, when the continuous screen-on time is greater than a first screen-on threshold, the terminal equipment is in an overheating state;
and step S140, when the continuous screen-on time is not greater than a first screen-on threshold, the terminal equipment is in a non-overheating state.
Specifically, when the terminal device is used, the screen is lighted, the power consumption of the device is large, and the internal temperature of the device is increased; when the device is not used, the screen gradually extinguishes, the power consumption of the device gradually decreases, and the internal temperature of the device gradually decreases. The black screen time also has an effect on the internal temperature.
In order to more accurately count the continuous screen-on time for judging whether the terminal device is in the overheat state, the continuous screen-on time needs to be dynamically updated according to the generated screen-off time.
Optionally, the continuously bright time is not reinitialized when the blank screen time is less than the first blank screen threshold. For example, a short screen blacking time is inserted in the screen brightening process, and because the short screen blacking time does not bring obvious cooling effect, the recorded continuous screen brightening time can still approximately reflect the internal temperature condition of the equipment, so that the continuous screen brightening time is not reinitialized.
When the screen blacking time is larger than a second screen blacking threshold value, reinitializing the continuous screen lightening time; the second blank screen threshold is greater than the first blank screen threshold. For example, a long screen blacking time is inserted in the screen brightening process, and because the long screen blacking time brings an obvious cooling effect, the internal temperature of the equipment is recovered to be consistent with the ambient temperature, and the continuous screen brightening time needs to be reinitialized at the moment.
Optionally, when the ratio of the screen blank time to the counted screen continuous lighting time is less than the first screen blank threshold, the screen continuous lighting time is not reinitialized. And when the ratio of the screen blacking time to the counted screen continuous lightening time is larger than a second screen blacking threshold value, reinitializing the screen continuous lightening time.
And judging whether the terminal equipment is in an overheating state or not according to the latest continuous screen-on time of the terminal equipment. And when the continuous screen-on time is longer than the first screen-on threshold, the terminal equipment is in an overheating state.
The first bright screen threshold may be set empirically. In order to judge whether the terminal equipment is in an overheating state or not more accurately according to the continuous screen-on time, the first screen-on threshold can be flexibly set according to the environment where the terminal equipment is located.
Optionally, the first bright screen threshold is set according to at least one of the following factors: the location, season and temperature of the terminal device. These factors affect the heat dissipation of the terminal device. The same continuous screen-on time causes the heating condition of the equipment to be approximately equivalent, but different environments cause the heat dissipation condition of the terminal equipment to be different, and the combination of the two conditions can cause the internal temperature change of the terminal equipment to be different under different environments. For example, when the same video is viewed on the mobile phone in summer and winter, the temperature change of the mobile phone is more obvious in summer than in winter.
And S200, when the terminal equipment is not in an overheated state, entering a conventional infrared temperature measurement mode and outputting the body temperature of the target human body.
Step S300, when the terminal equipment is in an overheat state, prompting a user to enter an environment temperature calibration mode to obtain a calibrated environment temperature;
and step S400, obtaining the human body temperature of the target human body according to the calibrated environment temperature.
The embodiment provides an inside temperature rise condition according to lasting bright screen time automatic identification terminal equipment to calibrate ambient temperature when necessary, infrared temperature measurement operation has been simplified to the approximate rate, has promoted user experience.
In another embodiment of the present invention, as shown in fig. 3, an infrared body temperature measuring method includes:
step S111, acquiring a reference temperature of the terminal equipment;
step S121, obtaining the internal temperature change of the terminal equipment according to the current internal temperature and the reference temperature;
step S131, judging whether the internal temperature change is larger than a first temperature threshold;
step S141, when the internal temperature change is larger than a first temperature threshold, the terminal equipment is in an overheating state;
and step S151, when the internal temperature change is not greater than a first temperature threshold, the terminal equipment is in a non-overheating state.
Specifically, the temperature measured by the internal temperature sensor of the terminal device is taken as the internal temperature. Selecting the internal temperature under a specific condition as a reference temperature of the terminal equipment; the specific condition is set on the basis that the internal temperature of the terminal device at that time can reflect the ambient temperature, i.e., substantially coincides with the ambient temperature (i.e., within an allowable error range). For example, the internal temperature of the terminal device at a specific time period, such as the internal temperature of two or three points in the morning, is selected as the reference temperature, and the internal temperature at that time point is approximately substantially consistent with the ambient temperature around the terminal device; for another example, the internal temperature of the terminal device when the screen is first lit every day is selected as the reference temperature.
And the difference between the current internal temperature and the reference temperature is used as the internal temperature change of the terminal equipment. When the internal temperature change is larger than a first temperature threshold, the terminal equipment is in an overheating state; this means that a significant temperature rise of the terminal device has occurred from the time point corresponding to the reference temperature to the current time.
The reference temperature is used to reflect the ambient temperature, and when the ambient temperature of the terminal device changes, the reference temperature also changes. In order to more accurately track changes in ambient temperature, the reference temperature is optionally dynamically updated according to the time of the black screen that occurs. Specifically, when the black screen time reaches the third black screen threshold, the reference temperature is updated with the internal temperature at the next lighting after the black screen. For example, a user operates a mobile phone indoors before from a warm indoor to a cool outdoor, and the reference temperature is the ambient temperature of the mobile phone indoors; and subsequently, the mobile phone is operated to measure the temperature after staying outdoors for a period of time, and the reference temperature is updated to the outdoor environment temperature of the mobile phone.
With the updating of the reference temperature, the temperature rise condition of the terminal equipment relative to the ambient temperature can be more accurately reflected by the internal temperature change, so that whether the terminal equipment is in an overheat state or not can be more accurately judged.
And S200, when the terminal equipment is not in an overheated state, entering a conventional infrared temperature measurement mode and outputting the body temperature of the target human body.
Step S300, when the terminal equipment is in an overheat state, prompting a user to enter an environment temperature calibration mode to obtain a calibrated environment temperature;
and step S400, obtaining the human body temperature of the target human body according to the calibrated environment temperature.
This embodiment provides a according to inside temperature change automatic identification terminal equipment's inside temperature rise condition to calibrate ambient temperature when necessary, infrared temperature measurement operation has been simplified to the gross rate, has promoted user experience.
In another embodiment of the present invention, as shown in fig. 4, an infrared body temperature measuring method includes:
step S112, counting the continuous screen-on time of the terminal equipment;
step S113, acquiring a reference temperature of the terminal equipment;
step S122, obtaining the internal temperature change of the terminal equipment according to the current internal temperature and the reference temperature;
step S132, judging whether the continuous screen-on time is greater than a first screen-on threshold or not, or whether the internal temperature change is greater than a first temperature threshold or not;
step S142, when the continuous screen-on time is greater than a first screen-on threshold, or the internal temperature change is greater than a first temperature threshold, the terminal equipment is in an overheat state;
step S152 is to keep the terminal device in a non-overheating state when the continuous screen-on time is not greater than the first screen-on threshold and the internal temperature variation is not greater than the first temperature threshold.
Specifically, the continuous screen-on time of the terminal device and the internal temperature change are combined to more accurately judge whether the terminal device is in an overheat state. And when the internal temperature change is greater than the first temperature threshold or the continuous screen-on time is greater than the first screen-on threshold, the terminal equipment is in an overheating state. For example, a user watches videos by using a mobile phone from a warm room to a cool room indoors, and finishes watching videos outdoors for a while, and then measures the temperature, wherein the continuous screen-on time is longer than a first screen-on threshold; however, the reference temperature is not updated in time, and the internal temperature change does not reach the first temperature threshold yet; the combination of the two can more accurately judge that the mobile phone is in an overheat state.
And S200, when the terminal equipment is not in an overheated state, entering a conventional infrared temperature measurement mode and outputting the body temperature of the target human body.
Step S300, when the terminal equipment is in an overheat state, prompting a user to enter an environment temperature calibration mode to obtain a calibrated environment temperature;
and step S400, obtaining the human body temperature of the target human body according to the calibrated environment temperature.
The embodiment provides an according to lasting bright screen time and the inside temperature rise condition of inside temperature change automatic identification terminal equipment, has improved the degree of accuracy of discernment, has further promoted user experience.
In one embodiment of the present invention, as shown in fig. 5, an infrared body temperature measuring device includes:
and an overheating judging module 100, configured to judge whether the terminal device is in an overheating state according to the device temperature parameter.
Specifically, terminal equipment refers to the electronic equipment who has infrared body temperature measurement function, indicates portable electronic equipment such as smart mobile phone, intelligent wearing equipment especially. Intelligence wearing equipment includes intelligent bracelet, intelligent wrist-watch.
The device temperature parameter refers to a parameter capable of reflecting the internal temperature change of the terminal device, such as the continuous screen-on time. The longer the continuous screen-on time is, the higher the internal temperature of the terminal equipment is; when the user does not operate the terminal equipment, the terminal equipment gradually enters a black screen state, and the internal temperature gradually decreases.
For another example, the temperature measured by an internal temperature sensor such as an NTC/PTAT integrated inside the terminal device may be directly reflected on the internal temperature of the terminal device. And judging the temperature rise condition of the equipment according to the change of the internal temperature.
When the internal temperature of the terminal equipment is judged to be changed too much according to the equipment temperature parameters, for example, if the internal temperature is larger than a certain threshold, the terminal equipment is considered to be in an overheating state. At this time, if a conventional infrared temperature measurement method is adopted, the temperature rise of the equipment can cause the measured ambient temperature to have larger deviation, and further cause the inaccurate measurement of the body temperature of the human body.
And the conventional temperature measuring module 200 is used for entering a conventional infrared temperature measuring mode and outputting the body temperature of the target human body when the terminal equipment is not in an overheated state.
Under a conventional infrared temperature measurement mode, the human body temperature of the target human body can be obtained only by measuring the surface temperature of the human body once by using the infrared temperature sensor.
Specifically, the ambient temperature calibration mode requires that the user calibrate the ambient temperature first when using the infrared body temperature measurement.
The calibration method has various methods, and the user can calibrate the ambient temperature according to the prompting mode. In one embodiment, the user is prompted to suspend use of the terminal device, and the terminal device is allowed to rest for a period of time, such as half an hour, and then temperature measurement operation is continued. The principle is that the internal temperature of the terminal equipment is gradually cooled down, and then the infrared temperature sensor is used for measuring the surface temperature of the human body once according to the conventional infrared temperature measurement mode to obtain the accurate body temperature of the human body.
In another embodiment, the temperature of an object around the target human body is measured with an infrared temperature sensor and taken as the calibrated ambient temperature. And then the infrared temperature sensor is used for measuring the surface temperature of the human body once. And correcting the surface temperature of the human body by using the calibrated environment temperature to obtain the accurate body temperature of the human body. This approach requires two infrared thermometry operations.
This embodiment, through the inside temperature rise condition of automatic identification terminal equipment, calibrate ambient temperature as necessary to infrared temperature measurement operation has been simplified to the big probability, has promoted user experience.
In another embodiment of the present invention, as shown in fig. 6, an infrared body temperature measuring device includes:
and an overheating judging module 100, configured to judge whether the terminal device is in an overheating state according to the device temperature parameter.
The overheat determination module 100 includes:
a screen-on duration counting unit 110, configured to count a continuous screen-on time of the terminal device;
the overheating judging module 100 is further configured to judge whether the continuous screen-on time is greater than a first screen-on threshold; when the continuous screen lightening time is larger than a first screen lightening threshold, the terminal equipment is in an overheating state; otherwise, the state is in a non-overheating state.
Specifically, when the terminal device is used, the screen is lighted, the power consumption of the device is large, and the internal temperature of the device is increased; when the device is not used, the screen gradually extinguishes, the power consumption of the device gradually decreases, and the internal temperature of the device gradually decreases. The black screen time also has an effect on the internal temperature.
In order to more accurately count the continuous screen-on time for judging whether the terminal device is in the overheat state, the continuous screen-on time needs to be dynamically updated according to the generated screen-off time.
Optionally, the continuously bright time is not reinitialized when the blank screen time is less than the first blank screen threshold. For example, a short screen blacking time is inserted in the screen brightening process, and because the short screen blacking time does not bring obvious cooling effect, the recorded continuous screen brightening time can still approximately reflect the internal temperature condition of the equipment, so that the continuous screen brightening time is not reinitialized.
When the screen blacking time is larger than a second screen blacking threshold value, reinitializing the continuous screen lightening time; the second blank screen threshold is greater than the first blank screen threshold. For example, a long screen blacking time is inserted in the screen brightening process, and because the long screen blacking time brings an obvious cooling effect, the internal temperature of the equipment is recovered to be consistent with the ambient temperature, and the continuous screen brightening time needs to be reinitialized at the moment.
Optionally, when the ratio of the screen blank time to the counted screen continuous lighting time is less than the first screen blank threshold, the screen continuous lighting time is not reinitialized. And when the ratio of the screen blacking time to the counted screen continuous lightening time is larger than a second screen blacking threshold value, reinitializing the screen continuous lightening time.
And judging whether the terminal equipment is in an overheating state or not according to the latest continuous screen-on time of the terminal equipment. And when the continuous screen-on time is longer than the first screen-on threshold, the terminal equipment is in an overheating state.
The first bright screen threshold may be set empirically. In order to judge whether the terminal equipment is in an overheating state or not more accurately according to the continuous screen-on time, the first screen-on threshold can be flexibly set according to the environment where the terminal equipment is located.
Optionally, the first bright screen threshold is set according to at least one of the following factors: the location, season and temperature of the terminal device. These factors affect the heat dissipation of the terminal device. The same continuous screen-on time causes the heating condition of the equipment to be approximately equivalent, but different environments cause the heat dissipation condition of the terminal equipment to be different, and the combination of the two conditions can cause the internal temperature change of the terminal equipment to be different under different environments. For example, when the same video is viewed on the mobile phone in summer and winter, the temperature change of the mobile phone is more obvious in summer than in winter.
And the conventional temperature measuring module 200 is used for entering a conventional infrared temperature measuring mode and outputting the body temperature of the target human body when the terminal equipment is not in an overheated state.
The calibration temperature measurement module 300 is configured to prompt a user to enter an ambient temperature calibration mode when the terminal device is in an overheat state, so as to obtain a calibrated ambient temperature; and obtaining the human body temperature of the target human body according to the calibrated environment temperature.
The embodiment provides an inside temperature rise condition according to lasting bright screen time automatic identification terminal equipment to calibrate ambient temperature when necessary, infrared temperature measurement operation has been simplified to the approximate rate, has promoted user experience.
In another embodiment of the present invention, as shown in fig. 7, an infrared body temperature measuring device includes:
and an overheating judging module 100, configured to judge whether the terminal device is in an overheating state according to the device temperature parameter.
The overheat determination module 100 includes:
an internal temperature rise calculation unit 120, configured to obtain a reference temperature of the terminal device; obtaining the internal temperature change of the terminal equipment according to the current internal temperature and the reference temperature;
the overheating judgment module is further used for judging whether the internal temperature change is larger than a first temperature threshold or not; when the internal temperature variation is larger than a first temperature threshold, the terminal equipment is in an overheating state; otherwise, the state is in a non-overheating state.
Specifically, the temperature measured by the internal temperature sensor of the terminal device is taken as the internal temperature. Selecting the internal temperature under a specific condition as a reference temperature of the terminal equipment; the specific condition is set on the basis that the internal temperature of the terminal device at that time can reflect the ambient temperature, i.e., substantially coincides with the ambient temperature (i.e., within an allowable error range). For example, the internal temperature of the terminal device at a specific time period, such as the internal temperature of two or three points in the morning, is selected as the reference temperature, and the internal temperature at that time point is approximately substantially consistent with the ambient temperature around the terminal device; for another example, the internal temperature of the terminal device when the screen is first lit every day is selected as the reference temperature.
And the difference between the current internal temperature and the reference temperature is used as the internal temperature change of the terminal equipment. When the internal temperature change is larger than a first temperature threshold, the terminal equipment is in an overheating state; this means that a significant temperature rise of the terminal device has occurred from the time point corresponding to the reference temperature to the current time.
The reference temperature is used to reflect the ambient temperature, and when the ambient temperature of the terminal device changes, the reference temperature also changes. In order to more accurately track changes in ambient temperature, the reference temperature is optionally dynamically updated according to the time of the black screen that occurs. Specifically, when the black screen time reaches the third black screen threshold, the reference temperature is updated with the internal temperature at the next lighting after the black screen. For example, a user operates a mobile phone indoors before from a warm indoor to a cool outdoor, and the reference temperature is the ambient temperature of the mobile phone indoors; and subsequently, the mobile phone is operated to measure the temperature after staying outdoors for a period of time, and the reference temperature is updated to the outdoor environment temperature of the mobile phone.
With the updating of the reference temperature, the temperature rise condition of the terminal equipment relative to the ambient temperature can be more accurately reflected by the internal temperature change, so that whether the terminal equipment is in an overheat state or not can be more accurately judged.
And the conventional temperature measuring module 200 is used for entering a conventional infrared temperature measuring mode and outputting the body temperature of the target human body when the terminal equipment is not in an overheated state.
The calibration temperature measurement module 300 is configured to prompt a user to enter an ambient temperature calibration mode when the terminal device is in an overheat state, so as to obtain a calibrated ambient temperature; and obtaining the human body temperature of the target human body according to the calibrated environment temperature.
This embodiment provides a according to inside temperature change automatic identification terminal equipment's inside temperature rise condition to calibrate ambient temperature when necessary, infrared temperature measurement operation has been simplified to the gross rate, has promoted user experience.
In another embodiment of the present invention, as shown in fig. 8, an infrared body temperature measuring device includes:
and an overheating judging module 100, configured to judge whether the terminal device is in an overheating state according to the device temperature parameter.
The overheat determination module 100 includes:
a screen-on duration counting unit 110, configured to count a continuous screen-on time of the terminal device;
an internal temperature rise calculation unit 120, configured to obtain a reference temperature of the terminal device; obtaining the internal temperature change of the terminal equipment according to the current internal temperature and the reference temperature;
the overheating judgment module is further used for judging whether the continuous screen-on time is greater than a first screen-on threshold or whether the internal temperature change is greater than a first temperature threshold; when the continuous screen-on time is greater than a first screen-on threshold, or the internal temperature change is greater than a first temperature threshold, the terminal equipment is in an overheating state; otherwise, the state is in a non-overheating state.
Specifically, the continuous screen-on time of the terminal device and the internal temperature change are combined to more accurately judge whether the terminal device is in an overheat state. And when the internal temperature change is greater than the first temperature threshold or the continuous screen-on time is greater than the first screen-on threshold, the terminal equipment is in an overheating state. For example, a user watches videos by using a mobile phone from a warm room to a cool room indoors, and finishes watching videos outdoors for a while, and then measures the temperature, wherein the continuous screen-on time is longer than a first screen-on threshold; however, the reference temperature is not updated in time, and the internal temperature change does not reach the first temperature threshold yet; the combination of the two can more accurately judge that the mobile phone is in an overheat state.
And the conventional temperature measuring module 200 is used for entering a conventional infrared temperature measuring mode and outputting the body temperature of the target human body when the terminal equipment is not in an overheated state.
The calibration temperature measurement module 300 is configured to prompt a user to enter an ambient temperature calibration mode when the terminal device is in an overheat state, so as to obtain a calibrated ambient temperature; and obtaining the human body temperature of the target human body according to the calibrated environment temperature.
The embodiment provides an according to lasting bright screen time and the inside temperature rise condition of inside temperature change automatic identification terminal equipment, has improved the degree of accuracy of discernment, has further promoted user experience.
In one embodiment of the present invention, as shown in fig. 9, a terminal device 20 includes a memory 21 and a processor 22.
The memory 21 is used for storing a computer program 23. The processor 22, when running the computer program 23, implements the infrared body temperature measurement method as described above.
As an example, the processor 21 realizes the steps S100 to S400 according to the foregoing description when executing the computer program. The processor 21 realizes the functions of the respective modules in the infrared body temperature measurement device described above when executing the computer program. As yet another example, the processor, when executing the computer program, implements the functionality of the overheating determination module 100, the conventional thermometry module 200, and the calibrated thermometry module 300.
Alternatively, the computer program may be divided into one or more modules/units according to the particular needs to accomplish the invention. Each module/unit may be a series of computer program instruction segments capable of performing a particular function. The computer program instruction segment is used for describing the execution process of the computer program in the infrared body temperature measuring device.
As an example, the computer program may be partitioned into modules/units in the virtual device, such as an overheating determination module, a conventional thermometry module, a calibration thermometry module.
The processor is used for realizing the infrared body temperature measurement by executing the computer program. The processor may be a Central Processing Unit (CPU), Graphics Processing Unit (GPU), Digital Signal Processor (DSP), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA), general purpose processor or other logic device, etc., as desired.
The memory may be any internal storage unit and/or external storage device capable of implementing data, program storage. For example, the memory may be a plug-in hard disk, a smart card (SMC), a Secure Digital (SD) card, or a flash card. The memory is used for storing computer programs and data.
The terminal device 20 may further include an input/output device, a display device, a network access device, a bus, and the like, as needed.
The terminal device 20 may also be a single chip microcomputer or a computing device integrating a Central Processing Unit (CPU) and a Graphics Processing Unit (GPU).
It will be understood by those skilled in the art that the above-mentioned units and modules for implementing the corresponding functions are divided for the purpose of convenient illustration and description, and the above-mentioned units and modules are further divided or combined according to the application requirements, that is, the internal structures of the devices/apparatuses are divided and combined again to implement the above-mentioned functions.
Each unit and module of the above embodiments may be separate physical units, or two or more units and modules may be integrated into one physical unit. The units and modules of the above embodiments may adopt hardware and/or software functional units to implement corresponding functions. Direct coupling, indirect coupling or communication connection among a plurality of units, components and modules of the above embodiments can be realized through a bus or an interface; the coupling, connection, etc. between the multiple units or devices may be electrical, mechanical, or the like. Accordingly, the specific names of the units and modules of the above embodiments are only for convenience of description and distinction, and do not limit the scope of protection of the present application.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. An infrared body temperature measurement method, comprising:
judging whether the terminal equipment is in an overheat state or not according to the equipment temperature parameter;
when the terminal equipment is not in an overheating state, entering a conventional infrared temperature measurement mode, and outputting the human body temperature of a target human body;
when the terminal equipment is in an overheat state, prompting a user to enter an environment temperature calibration mode to obtain a calibrated environment temperature; and the number of the first and second groups,
obtaining the human body temperature of the target human body according to the calibrated environment temperature;
the judging whether the terminal equipment is in an overheat state according to the equipment temperature parameters comprises the following steps:
counting the continuous screen-on time of the terminal equipment;
and when the continuous screen lightening time is greater than a first screen lightening threshold, the terminal equipment is in an overheating state.
2. The infrared body temperature measurement method of claim 1, wherein the counting of the continuous on-screen time of the terminal device comprises:
and dynamically updating the continuous screen lightening time of the terminal equipment according to the generated screen blacking time.
3. The infrared body temperature measurement method according to claim 1, characterized in that:
setting a first bright screen threshold according to at least one of the following factors of the terminal equipment: location, season, temperature.
4. The infrared body temperature measurement method according to claim 1, wherein the determining whether the terminal device is in an overheat state according to the device temperature parameter further comprises:
acquiring a reference temperature of the terminal equipment;
obtaining the internal temperature change of the terminal equipment according to the current internal temperature and the reference temperature;
and when the internal temperature change is larger than a first temperature threshold, the terminal equipment is in an overheating state.
5. The infrared body temperature measurement method of claim 4, wherein the obtaining the reference temperature of the terminal device comprises:
and when the screen blacking time is greater than a third screen blacking threshold value, updating the reference temperature by using the internal temperature at the next screen lightening after the screen blacking.
6. An infrared body temperature measurement device comprising:
the overheating judgment module is used for judging whether the terminal equipment is in an overheating state or not according to the equipment temperature parameter;
the conventional temperature measurement module is used for entering a conventional infrared temperature measurement mode and outputting the body temperature of a target human body when the terminal equipment is not in an overheated state;
the calibration temperature measurement module is used for prompting a user to enter an environment temperature calibration mode when the terminal equipment is in an overheat state, so as to obtain a calibrated environment temperature; obtaining the human body temperature of the target human body according to the calibrated environment temperature;
the overheat determination module includes:
the screen-on duration counting unit is used for counting the continuous screen-on time of the terminal equipment;
the overheating judging module is further configured to, when the continuous screen-on time is greater than a first screen-on threshold, enable the terminal device to be in an overheating state.
7. The infrared body temperature measurement device of claim 6, wherein the overheating determination module further comprises:
the internal temperature rise calculating unit is used for acquiring the reference temperature of the terminal equipment; obtaining the internal temperature change of the terminal equipment according to the current internal temperature and the reference temperature;
the overheating judging module is further configured to, when the internal temperature change is greater than a first temperature threshold, enable the terminal device to be in an overheating state.
8. A terminal device, comprising:
a memory for storing a computer program;
a processor for implementing the infrared body temperature measurement method of any one of claims 1 to 5 when running the computer program.
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| CN111693149A (en) * | 2020-06-23 | 2020-09-22 | 广东小天才科技有限公司 | Temperature measurement method, device, wearable equipment and medium |
| CN114034400A (en) * | 2020-07-21 | 2022-02-11 | 浙江宇视科技有限公司 | Human body infrared temperature measurement method and device, medium and electronic equipment |
| CN111855020A (en) * | 2020-07-27 | 2020-10-30 | 歌尔科技有限公司 | Temperature detection method and device, wearable device and storage medium |
| CN112611482A (en) * | 2020-11-24 | 2021-04-06 | 甄十信息科技（上海）有限公司 | Method for calibrating temperature sensor of intelligent equipment |
| CN113252182B (en) * | 2021-06-04 | 2021-10-12 | 南京甄视智能科技有限公司 | Method and system for outdoor face recognition and human body temperature measurement |
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