TWI667010B - Temperature sensing device for automatic switching mode and method for automatically switching mode thereof - Google Patents

Abstract

The present invention provides a temperature sensing device for automatically switching modes and a method for automatically switching modes thereof, the device comprising: a control unit that determines whether the temperature sensing device enters or leaves a first mode or a second mode; a power supply circuit including the power supply unit and electrically connecting the control unit to provide power, wherein the power circuit includes a detecting unit, and the detecting unit is configured to provide power to the temperature sensing device Electrically connecting the power supply unit and the control unit, the detecting unit detects a time when the temperature sensing device is moved from a resting state, so that the control unit determines that the temperature sensing device leaves the first mode and enters the The second mode.

Description

 Temperature sensing device for automatic switching mode and method for automatically switching mode thereof  

The present invention relates to a power-on operation of a temperature sensing device, and more particularly to a temperature sensing device for automatically switching modes and a method for automatically switching modes thereof.

Electronic thermometers can quickly and accurately measure body temperature, so they have replaced traditional mercury thermometers in general households. According to the prior art, the start-up design of the electronic thermometer is performed by a mechanical switch, and the user must manually operate the power switch from the OFF position to the ON position or continuously press the power switch for a period of time. The thermometer enters the boot process. After the boot process is completed, the user can use the measurement function of the electronic thermometer. In addition, the shutdown design of the electronic thermometer must be manually turned from the ON position to the OFF position by the user, or automatically turned off after counting for a period of time in the standby state.

In order to improve the experience of the user operating the electronic thermometer, if the user picks up or moves the electronic thermometer from the stationary state, the electronic thermometer can automatically enter the booting process, which will save the user from having to perform an artificial startup action again. And make the electronic thermometer get a better operating experience.

One of the many objects of the present invention is to provide a temperature sensing device for automatically switching modes and a method for automatically switching the mode thereof, wherein a detecting unit detects a time when the temperature sensing device is moved from a resting state, so that the The temperature sensing device automatically enters the booting process to improve the user's operating experience.

One of the many objects of the present invention is to provide an automatic switching mode temperature sensing device and a method for automatically switching the mode thereof, wherein a detecting unit detects that the temperature sensing device is in a resting state, so that the temperature sense can be sensed. The shutdown program of the measuring device reduces the time for automatic shutdown in the standby state.

In order to achieve the above objects, the present invention provides a temperature sensing device for automatically switching modes, comprising: a control unit that determines whether the temperature sensing device enters or leaves a first mode or a second mode; a power supply circuit including the power supply unit and electrically connecting the control unit to provide power, wherein the power circuit includes a detecting unit, and the detecting unit is configured to provide power to the temperature sensing device Electrically connecting the power supply unit and the control unit, the detecting unit detects a time when the temperature sensing device is moved from a resting state, so that the control unit determines that the temperature sensing device leaves the first mode and enters the In the second mode, the detecting unit detects that the temperature sensing device is in a resting state, so that the control unit determines that the temperature sensing device enters the first mode.

In order to achieve the above objects, the present invention provides a method for automatically switching modes, which is suitable for a temperature sensing device to enter or leave a first mode or a second mode, including: providing a temperature sensing device in the temperature sensing device a detecting unit, the detecting unit is electrically connected to a power supply unit and a control unit; and the detecting unit detects a time when the temperature sensing device is moved from a resting state, so that the control unit determines the temperature sensing The device leaves the first mode and enters the second mode, and the detecting unit detects the time when the temperature sensing device is in a resting state, so that the control unit determines that the temperature sensing device enters the first mode. .

According to the method of automatically switching between the temperature sensing device and the automatic switching mode, the first mode is an automatic detecting mode or a state of automatically shutting down in a standby state, and the second mode is a standby state or a temperature measuring mode or booting The status after the program.

According to the method of automatically switching between the temperature sensing device and the automatic switching mode, the detecting unit can be actuated by a pressing switch, a gravity sensor (G-sensor), a ball switch, a mercury switch, or a light. The sensor is implemented.

According to the temperature sensing device and the automatic switching mode implemented by the present invention, the user operates the temperature sensing device of the present invention, such as a temperature gun or an ear thermometer, and will obtain "automatically start up when picked up from a standstill state". Or the operation experience of "automatically turn on the measurement mode when picked up from a standstill", and reduce the average time of each use by about 3~5 seconds to confirm whether the device is turned on or not or whether it has entered the measurable state. The time, and shorten the shutdown countdown time and directly shut down automatically, to achieve the power saving effect of the power supply unit.

1, 2‧‧‧ electrical contacts

10‧‧‧Temperature sensing device

11‧‧‧Control Unit (MCU)

12‧‧‧LCD display

13‧‧‧ function keys

14‧‧‧Digital proximity sensor

15‧‧‧ Thermopile type temperature sensor

16‧‧‧Warning device

17‧‧‧Memory (EEPROM)

18‧‧‧Communication埠

19‧‧‧Shell

20‧‧‧Power circuit

21‧‧‧Detection unit

100,200,300‧‧‧How to automatically switch modes

101, 102, 103, 104, 105, 106, 201, 202, 203, 204, 205, 206, 207, 301, 302, 303, 304, 305, 306, 307 ‧ ‧ steps

C‧‧‧ capacitor

L‧‧‧ contact surface

Q‧‧‧Optocrystal

R1, R2, R3‧‧‧ resistance

The first figure is a block diagram of the temperature sensing device of the automatic switching mode of the present invention.

The second figure is a front view, a perspective view and a side view of a temperature sensing device of the present invention.

The third figure is a flow chart of an automatic switching mode of a temperature sensing device of the present invention.

The fourth figure is a circuit diagram of a power supply circuit of the temperature sensing device of the present invention.

The fifth A diagram and the fifth B diagram are flowcharts of an automatic switching mode of another temperature sensing device of the present invention.

The sixth figure is a flow chart of an automatic switching mode of still another temperature sensing device of the present invention.

Referring to the first figure, a block diagram of a temperature sensing device of the automatic switching mode of the present invention is shown. In the embodiment of the present invention, the temperature sensing device 10 of the automatic switching mode includes a control unit (MCU) 11 that determines whether the temperature sensing device 10 enters or leaves a first mode or a second mode. And electrically connected to other blocks shown in the first figure, and perform temperature sensing function of the temperature sensing device 10; a communication port 18, receiving externally set calibration parameters and programs; a memory (EEPROM) 17, storing correction Parameters and programs for access by the control unit 11; a digital proximity sensor 14 and a thermopile type temperature sensor 15 sense measurement data about the human body for the control unit 11 to calculate the ear temperature of the human body or A function key 13 triggers the control unit 11 to perform a temperature operation processing step and a display measurement data step, as shown in the third, fifth, fifth, fifth, and sixth figures; a warning device 16 is triggered at the function key 13 When the control unit 11 is controlled, the control unit 11 controls the generation of a warning sound; an LCD display 12 displays the human ear temperature or the front temperature calculated by the control unit 11; and a power supply circuit 20 electrically connected to the control unit 11 mention The power supply circuit provides power to the other blocks shown in the first figure through the control unit 11. The power supply circuit 20 includes a power supply unit (not shown) and a detecting unit 21, wherein the power supply unit can It is a battery, a rechargeable battery, a solar battery or other power supply unit. The following power supply unit is exemplified by a battery. The detecting unit 21 electrically connects the battery and the control unit 11, and the detecting unit 21 detects the time when the temperature sensing device 10 is moved from the resting state, so as to enable The control unit 11 determines that the temperature sensing device 10 leaves the first mode and enters the second mode, and the detecting unit 21 detects that the temperature sensing device 10 is in a resting state, so that the control unit 11 is enabled. It is determined that the temperature sensing device 10 enters the first mode.

In an embodiment of the invention, the power supply circuit 20 defines a power supply circuit between the battery, the control unit 11, and the detection unit 21. By the sensing state of the detecting unit 21, the control unit 11 is enabled to enter the working state or the control unit 11 is enabled to execute the setting of the program to complete the booting process. According to the sensing state of the detecting unit 21, the temperature sensing device 10 is caused to enter or leave a first mode or a second mode by the control unit 11. In various embodiments of the present invention, the detecting unit 21 may be shell- The body surface is embossed by a push switch, a gravity sensor (G-sensor), a ball switch, a mercury switch, or a light sensor to achieve different units. The implementation of the detecting unit 21 by different units also makes the first mode or the second mode of the temperature sensing device 10 different. In the different embodiments of the present invention, the detecting unit 21 uses different units, and the first mode of the temperature sensing device 10 may be an automatic detecting mode or a state after the automatic shutdown in the standby state, and the temperature sensing device The second mode of 10 may be a standby state or a temperature measurement mode or a state after the boot process.

In an embodiment of the present invention, the battery of the power supply circuit 20 is directly supplied to the control unit 11 and the memory 17. The detection unit 21 is electrically connected to a pin of the control unit 11, and the detection unit 21 The sense state determines the potential of the pin. In this embodiment, the first mode of the temperature sensing device 10 is an automatic detection mode. In the automatic detection mode, the control unit 11 is powered and in operation, and executes a program stored in the memory 17 to determine The potential of this pin. When the detecting unit 21 detects that the temperature sensing device 10 is continuously in a resting state, and the pin is at a low potential (L), the control unit 11 continuously determines whether the potential of the pin changes, until the detecting When the measuring unit 21 detects the time when the temperature sensing device 10 is moved or picked up from the resting state, and the pin changes to a high level, the control unit 11 performs the starting process according to the program to perform the temperature sensing device. The initial setting of 10. Therefore, the detecting unit 21 enables the control unit 11 to determine that the temperature sensing device 10 leaves the automatic detection mode and enters the startup program or the standby state or the temperature measurement mode. In addition, in order to prevent the temperature sensing device 10 from being in a static state and being moved by mistake, but the user does not pick up the temperature sensing device 10, the control unit 11 can determine the potential state of the pin to exclude the one. Malfunction, for example, when the potential of the pin is from L to H, and soon from H to L, the control unit 11 does not execute the boot procedure to leave the auto detect mode (first mode).

According to the prior art, the conventional temperature sensing device starts the shutdown time count in the standby state, and automatically shuts down after a period of time. In the above embodiment of the present invention, when the control unit 11 starts the shutdown count period in the standby state, if the detecting unit 21 detects that the temperature sensing device 10 is in the resting state, and the pin When it is low (L), the control unit 11 can be directly shut down to shorten the automatic shutdown time of the prior art without waiting for the shutdown count time to end, and the battery energy can be saved.

Referring to the second figure, a front view, a perspective view and a side view of a temperature sensing device of the present invention are shown. In this embodiment of the invention, the temperature sensing device 10 of the present invention comprises a housing 19 in which all the blocks as shown in the first figure are arranged, wherein the detecting unit 21 of the power supply circuit 20 is provided by the housing. The surface of the body surface is actuated by a push switch. The housing 19 is designed by the contour shown in the second figure, and with the gravity applied by the battery in the housing 19, so that the temperature sensing device 10 is placed on a plane L regardless of its initial placement posture. The contour of the housing 19 is designed to be like a tumbler so that the housing 19 will eventually maintain a predetermined bottom contacting the plane L. The push switch as the detecting unit 21 is mounted on the preset bottom of the housing 19, and the convex portion that can actuate the push switch protrudes from the surface of the preset bottom. Therefore, as shown in the second figure, when the temperature sensing device 10 is placed on a plane L, the bottom of the casing 19 contacting the plane L will actuate the convex portion of the push switch and press the push switch. When the temperature sensing device 10 is picked up from the plane L, the bottom of the casing 19 is separated from the plane L, so that the convex portion of the push switch is not actuated, and the push switch is not pressed. In addition, the pressing switch is disposed at the preset bottom of the housing 19, preferably to avoid the user operating the holding portion of the temperature sensing device 10 to avoid malfunction caused by pressing the pressing switch during temperature measurement.

In this embodiment of the invention, the power supply circuit 20 configures the push switch in a power supply path between the battery and the control unit 11. When the push switch is pressed, the control unit 11 is in a shutdown state, and when the push switch is From the pressed state to the unpressed state, the control unit 11 will be powered into an active state to execute the booting procedure and enter the standby state. In another embodiment of the present invention, the power circuit 20 includes at least two push switches as the detecting unit 21 to increase the chances that the pressing switches are pressed according to different positioning postures of the temperature sensing device 10, and The two push switches are connected in series in the power supply circuit 20. When the temperature sensing device 10 is placed in a non-planar position, any of the push switches can be pressed to bring the control unit 11 into a shutdown state. In still another embodiment of the present invention, the housing 19 has a movable projection mechanism as a mechanism for projecting the surface of the housing as shown in the second figure. When the projection mechanism is pressed, the projection mechanism At least one push switch of the power supply circuit 20 in the housing 19 can be actuated to achieve the objectives of the present invention in the foregoing embodiments.

Referring to the third figure, a flow chart of an automatic switching mode of a temperature sensing device of the present invention is shown. In this embodiment of the invention, the temperature sensing device 10 of the present invention comprises a housing 19, as shown in the second figure, in which all the blocks shown in the first figure are arranged, wherein the power supply circuit 20 The detecting unit 21 is realized by a push switch that protrudes from the surface of the casing. The method 100 for automatically switching modes of the present invention is applicable to a temperature sensing device 10 entering or leaving a first mode or a second mode, comprising: step 101: pressing down detection, and determining, in the first mode, the power circuit Whether the push switch of 20 is depressed to determine whether the temperature sensing device 10 leaves the first mode, and when the temperature sensing device 10 is placed on a plane, the outline of the housing 19 is designed like a tumbler regardless of its initial placement posture. Generally, the bottom of the housing 19 contacts the plane such that the push switch is pressed. Therefore, the temperature sensing device 10 continues to be in the first mode, such as the power off state or the auto detect mode; until the bottom of the housing 19 leaves the plane The push switch is not pressed, the power circuit 20 supplies power to the control unit 11 and enables it to enter an active state; in various embodiments, when the temperature sensing device 10 is placed in a box, the push switch The lid is covered by the lid of the cartridge to be pressed, wherein the inner surface of the lid is a contact surface contacting the push switch. When the cover of the casing is opened such that the contact surface does not press the push switch, the power supply circuit 20 supplies power to the control unit 11 and enables it to enter the operational state. Step 2: The booting process, the control unit 11 is powered and enters the working state, and the control unit 11 reads the program of the memory 17 to perform the booting process to initially set the temperature sensing device 10 (including the power supply of the control unit 11 to the first After the other blocks shown in the figure, the temperature sensing device 10 enters a second mode, such as a standby state or a temperature sensing mode.

Continuing to refer to the third figure, step 103: function key detection, in the second mode, determining whether the function key 13 is pressed, if the function key 13 is pressed, the control unit 11 performs the temperature operation processing of step 104, if the function key 13 is not pressed, then the control unit 11 performs the shutdown time count of step 106. In another embodiment of the present invention, in addition to triggering the temperature measurement function, the function key 13 has a shutdown function, and when the function key 13 continues to press for a while, it immediately enters a shutdown state. Step 104: Temperature calculation processing, the control unit 11 enables the digital proximity sensor 14 and the thermopile type temperature sensor 15 to sense measurement data about the human body, and after calculating the ear temperature or the temperature of the human body, the control unit 11 The display measurement data of step 105 is performed. In step 105, the measurement data is displayed, and the control unit 11 displays the ear temperature or the temperature data of the human body on the LCD display 12, returns to the second mode, and proceeds to step 103. Step 106, the shutdown time is counted. When the temperature sensing device 10 is in the second mode, and the function key 13 is not pressed, the control unit 11 starts the shutdown time count, and performs the shutdown time determination of step 107. Step 107: The shutdown time, the control unit 11 determines that the shutdown time counting result has not reached the shutdown time, returns to the second mode, and continues to step 103, until it is determined that the shutdown time counting result reaches the shutdown time, the control unit 11 determines the temperature sensing. The device 10 enters the first mode and performs step 101.

Referring to the fourth figure, a circuit diagram of a power supply circuit 20 of the temperature sensing device of the present invention is shown. In this embodiment of the invention, the power supply circuit 20 uses an all-phase ball switch as the detecting unit 21. The all-phase ball switch has two electrical contacts, and the detection characteristic is that when the ball switch is stationary, the two electrical contacts 1, 2 are in a conducting state, and when the ball switch is picked up, the two electrical contacts 1, 2 will have A short road open. The power supply circuit 20 includes an RC circuit including resistors R1, R2, R3 and a capacitor C, as shown in the connection relationship. The all-phase ball switch and the RC circuit form a loop, wherein the RC circuit resistors R1, R2, R3 and the capacitor C can adjust the sensitivity of the ball switch signal. When the ball switch is in a static state, the two electrical contacts 1, 2 of the ball switch are short-circuited, and the level of the electrical contact 1 is determined by the parallel connection of the resistors R2 and R3 and the voltage division of the resistor R1. The higher the higher the easier it is to trigger the transistor Q to conduct, ie the higher the sensitivity. When the value of the resistor R1 and the capacitor C is larger, the voltage rise time of the electrical contact 1 will be slower when the ball switch is shaken, and the less likely the trigger of the transistor Q is turned on, the lower the sensitivity will be. When the transistor Q is turned on, the control unit 11 is enabled to operate to perform the boot process to enter the standby state or the temperature measurement mode. In addition, the power supply circuit 20 uses the transistor Q as a buffer to keep the control unit 11 in a shutdown state from excessive standby power consumption.

In the different embodiments of the present invention, the detecting unit 21 of the power circuit 20 shown in the fourth figure may also use a gravity sensor or a mercury switch to achieve the object of the present invention in the foregoing embodiments.

Referring to FIGS. 5A and 5B, a flow chart of an automatic switching mode of another temperature sensing device of the present invention is shown. In this embodiment of the invention, the temperature sensing device 10 of the present invention comprises a housing 19 in which all the blocks shown in the first figure are arranged, wherein the detecting unit 21 of the power supply circuit 20 is selectable. The all-phase ball switch, the gravity sensor or the mercury switch is implemented, wherein the sway state sensed by the detecting unit 21 is associated with a potential change of a pin of the control unit 11, and is powered and operated by the control unit 11. The next detection and judgment of the potential change. The automatic switching mode of the temperature sensing device 10 of this embodiment may use the method 200 shown in FIG. 5A and the method 210 shown in FIG. 5B, the difference being only in the order of the steps, and the technical field of the invention has general knowledge. It can be easily associated and easily completed. The method 200 shown in FIG. 5A enters a second mode (or standby mode) of the standby state after the temperature sensing device 10 is shaken away from the first mode; and the method 210 of the temperature sensing device is shown in FIG. After being shaken away from the first mode, 10 enters the second mode (or temperature measurement mode) of the measured temperature.

Referring to FIG. 5A, the method 200 for automatically switching modes of the present invention is applicable to a temperature sensing device 10 entering or leaving a first mode or a second mode, comprising: step 201: shaking detection, in the first mode In the automatic detection mode, the control unit 11 determines the potential change of the pin associated with the detecting unit 21 to determine whether the temperature sensing device 10 leaves the first mode, and when the temperature sensing device 10 is placed in the first When the plane is in a stationary state, the detecting unit 21 senses that it is not shaking, so that the control unit 11 detects that the pin is a fixed potential, such as a low potential, and therefore, the temperature sensing device 10 continues to be in the first mode; The temperature sensing device 10 is moved or picked up, and the detecting unit 21 senses the shaking, so that the control unit 11 detects the pin potential change, thereby determining to enter the working state and leave the first mode. Step 202: The booting process, the control unit 11 performs initial startup of the temperature sensing device 10 according to the program of the memory 17 (including the power supply of the control unit 11 to other blocks shown in the first figure), and the temperature sense The measuring device 10 enters a second mode, such as a standby state or a temperature sensing mode.

In this embodiment of the present invention, in the second mode, the sway state sensed by the detecting unit 21 can be used to trigger the temperature sensing device 10 by a potential change associated with a pin of the control unit 11. Perform temperature measurement and display. Step 203: Shake detection. In the second mode, the control unit 11 detects the potential change of the pin to determine whether the detecting unit 21 senses the shaking. If there is shaking, the control unit 11 performs the temperature calculation in step 204. Processing, if not shaking, the control unit 11 performs the shutdown time count of step 206. In another embodiment of the present invention, in the second mode, step 203 can be judged by the control unit 11 whether the function key 13 is pressed. If the function key 13 is pressed, the control unit 11 performs the temperature operation processing of step 204. If the function key 13 is not pressed, the control unit 11 performs the shutdown time count of step 206. In addition to triggering the temperature measurement function, the function key 13 has a shutdown function.

Continuing to refer to the flowchart shown in FIG. 5A, in this embodiment of the present invention, step 204, temperature calculation processing, control unit 11 enables digital proximity sensor 14 and thermopile type temperature sensor 15 to sense Regarding the measurement data of the human body, after calculating the ear temperature or the temperature of the human body, the control unit 11 performs the display measurement data of step 205. In step 205, the measurement data is displayed, and the control unit 11 displays the ear temperature or the temperature data of the human body on the LCD display 12, returns to the second mode, and proceeds to step 203. Step 206: The shutdown time is counted. When the temperature sensing device 10 is in the second mode, and the detecting unit 21 senses that it has not yet shaken, the control unit 11 starts the shutdown time counting, and performs the shutdown time determination of step 207. Step 207, the shutdown time, the control unit 11 determines that the shutdown time counting result has not reached the shutdown time, returns to the second mode, and proceeds to step 203 until the determination that the shutdown time counting result reaches the shutdown time, the control unit 11 determines the temperature sensing. The device 10 enters the first mode and performs step 201.

Referring to FIG. 5B, the difference between the method 210 of the automatic switching mode of the present invention and the method 200 shown in FIG. A is the order of the steps, and the same step numbers 201, 202, . . . perform the same content. Therefore, the method 210 of the automatic switching mode of the present invention performs the steps 204, 205 after the temperature sensing device 10 is shaken away from the first mode, that is, enters the second mode (or the measurement mode) of the measured temperature. To measure the temperature again or enter the second mode, the user can shake the temperature sensing device 10 again; if the temperature sensing device 10 is left, return to the first mode via steps 206, 207.

Referring to the sixth figure, a flow chart of an automatic switching mode of still another temperature sensing device of the present invention is shown. In this embodiment of the invention, the temperature sensing device 10 of the present invention comprises a housing 19 in which all the blocks shown in the first figure are arranged, wherein the detecting unit 21 of the power supply circuit 20 is selectable. The light sensor is realized by the outline design shown in the second figure, and with the gravity applied by the battery in the housing 19, when the temperature sensing device 10 is placed on a plane L, Regardless of its initial placement posture, the housing 19 is contoured like a tumbler so that the housing 19 will eventually maintain a predetermined bottom contacting the plane L. The photo sensor as the detecting unit 21 is mounted on the preset bottom of the housing 19, so that when the temperature sensing device 10 is allowed to stand, the bottom of the housing 19 is kept downward and the photo sensor is shielded. . Until the temperature sensing device 10 is picked up from the plane L, the bottom of the housing 19 leaving the plane L will cause the photo sensor to be unshielded. In addition, in the power supply circuit 20, the detecting unit 21 senses that the shielding state of the light is related to the potential change of a pin of the control unit 11, and the control unit 11 detects and determines the potential change under power supply and operation.

In this embodiment of the present invention, the method 300 for automatically switching modes of the present invention is applicable to a temperature sensing device 10 entering or leaving a first mode or a second mode, including: step 301: mask detection, In the first mode, for example, the automatic detection mode, the control unit 11 determines the potential change of the pin associated with the detecting unit 21 to determine whether the temperature sensing device 10 leaves the first mode, when the temperature sensing device 10 When the image is placed on a plane, the detecting unit 21 senses that the light is shielded, so that the control unit 11 detects that the pin is a fixed potential, such as a low potential, and therefore, the temperature sensing device 10 continues to be in the first mode; Until the temperature sensing device 10 is moved or picked up, the detecting unit 21 senses that the light is not shielded, so that the control unit 11 detects a change in the pin potential, thereby determining to enter the working state and leave the first mode. Step 302: The booting process, the control unit 11 performs initial startup of the temperature sensing device 10 according to the program of the memory 17 (including the power supply of the control unit 11 to other blocks shown in the first figure), and the temperature sense The measuring device 10 enters a second mode, such as a standby state or a temperature sensing mode.

Continuing to refer to the sixth figure, step 303: function key detection, in the second mode, determining whether the function key 13 is pressed, if the function key 13 is pressed, the control unit 11 performs the temperature operation processing of step 304, if the function key 13 is not pressed, then the control unit 11 performs the shutdown time count of step 306. In another embodiment of the present invention, in addition to triggering the temperature measurement function, the function key 13 has a shutdown function, and when the function key 13 continues to press for a while, it immediately enters a shutdown state. Step 304, temperature operation processing, the control unit 11 enables the digital proximity sensor 14 and the thermopile type temperature sensor 15 to sense measurement data about the human body, and after calculating the ear temperature or the temperature of the human body, the control unit 11 The display measurement data of step 305 is performed. In step 305, the measurement data is displayed, and the control unit 11 displays the ear temperature or the temperature data of the human body on the LCD display 12, returns to the second mode, and proceeds to step 303. Step 306, the shutdown time is counted. When the temperature sensing device 10 is in the second mode, and the function key 13 is not pressed, the control unit 11 starts the shutdown time counting, and performs the shutdown time determination of step 307. Step 307, the shutdown time, the control unit 11 determines that the shutdown time counting result has not reached the shutdown time, returns to the second mode, and proceeds to step 303, until it is determined that the shutdown time counting result reaches the shutdown time, the control unit 11 determines the temperature sensing. The device 10 enters the first mode and performs step 301.

In addition, according to the second mode shown in FIG. 5A, the judgment of step 203 teaches "shake detection", and those having ordinary knowledge in the technical field of the invention can easily associate and easily complete the third figure and the sixth figure. In the second mode, the determination of steps 103 and 203 may replace “function key detection” with “slosh detection”, and perform temperature calculation processing and display measurement data according to the second mode shown in FIG. Those skilled in the art can easily associate and easily perform the second mode execution temperature calculation process and the display measurement data shown in the third and sixth figures before performing the determination step.

Claims (8)

An automatic switching mode temperature sensing device includes: a control unit that determines whether the temperature sensing device enters or leaves a first mode or a second mode; and a power supply unit that provides power of the temperature sensing device; a power supply circuit including the power supply unit and electrically connecting the control unit to provide power, wherein the power circuit includes a detecting unit, and the detecting unit senses a shaking state of the temperature sensing device to be associated with the The potential of a pin of the control unit is changed, so that the control unit determines that the temperature sensing device leaves the first mode and enters the second mode, wherein the power circuit comprises a transistor, and the collector of the transistor passes through a The resistor is connected to an operating voltage and is connected to the pin. The emitter of the transistor is connected to the ground of the control unit, and the base of the transistor is connected to the working voltage via a first resistor and connected to the ground via a second resistor. A capacitor is connected between the base and the emitter of the transistor in parallel with the series connection of the detecting unit and a third resistor. The temperature sensing device of the automatic switching mode described in claim 1, wherein the detecting unit is an all-phase ball switch, a gravity sensor or a mercury switch. The temperature sensing device of the automatic switching mode of claim 1, wherein the first, second, and third resistors and the capacitor are used to adjust a sensitivity of the detecting unit to sense a shaking state. The temperature sensing device of the automatic switching mode of claim 1, wherein the detecting unit senses the temperature sensing device after the temperature sensing device leaves the first mode and enters the second mode. Shaking state to cause the control unit to maintain the temperature sensing device in the second mode. A method for automatically switching modes, wherein a temperature sensing device enters or leaves a first mode or a second mode, including: providing a detecting unit in the temperature sensing device, the detecting unit sensing the temperature The sway state of the sensing device is associated with a potential change of a pin of the control unit; a power circuit including the detecting unit is provided in the temperature sensing device, the power circuit includes a transistor, and the set of the transistor Connecting an operating voltage to a pin via a resistor, the emitter of the transistor is connected to the ground of the control unit, and the base of the transistor is connected to the working voltage via a first resistor and connected via a second resistor Grounding, a connection between the base and the emitter of the transistor is connected in parallel with the series connection of the detecting unit and a third resistor; and the control unit changes according to the potential of the pin to determine whether the temperature sensing device is away The first mode is either maintained in the second mode. The method of automatically switching modes as described in claim 5, wherein the detecting unit is an all-phase ball switch, a gravity sensor or a mercury switch. The method for automatically switching modes as described in claim 5, further comprising: After the temperature sensing device leaves the first mode and enters the second mode, the detecting unit senses a shaking state of the temperature sensing device, so that the temperature sensing device remains in the second mode. The method of automatically switching modes according to claim 5, wherein the first, second, and third resistors and the capacitor are used to adjust a sensitivity of the detecting unit to sense a shaking state.