TW201817369A - Automatic mode switching temperature sensing device and method for automatic mode switching thereof capable of shortening the time for turn-on and turn-off to achieve energy saving efficacy - Google Patents

Abstract

The present invention provides an automatic mode switching temperature sensing device and a method for automatic mode switching thereof. The device comprises: a control unit for determining whether the temperature sensing device enters or leaves a first mode or a second mode; a power supply unit for supplying power to the temperature sensing device; and a power circuit comprising the power supply unit and electrically connected to the control unit to supply the power, and is characterized in that the power circuit comprises a detection unit; the detection unit is electrically connected with the power supply unit and the control unit; and when the detection unit detects that the temperature sensing device is moved from a resting state, the control unit is enabled to determine the temperature sensing device to leave the first mode and enter the second mode.

Description

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

The present invention relates to a startup operation of a temperature sensing device. More specifically, the present invention is a temperature sensing device with an automatic switching mode and a method for automatically switching modes.

The electronic thermometer can provide fast and accurate measurement of human body temperature, so it has replaced the traditional mercury thermometer in ordinary households. According to the prior art, the start-up design of the electronic thermometer is performed by a mechanical switch. The power switch must be manually operated by the user. After the power switch is turned from the OFF position to the ON position or the power switch is continuously pressed for a period of time, the electronic thermometer The thermometer enters the boot process. After the startup procedure 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 operated by the user to switch from the ON position to the OFF position, or automatically shut down after counting for a period of time in the standby state.

In order to improve the user's experience in operating the electronic thermometer, if the user picks up or moves the electronic thermometer from a stationary state, the electronic thermometer can automatically enter the boot process, which will eliminate the need for the user to perform a manual startup operation. The electronic thermometer has a better operating experience.

One of the many objects of the present invention is to provide a temperature sensing device with an automatic switching mode and a method for automatically switching modes. A detection unit detects a moment when the temperature sensing device is moved from a resting state, so that the The temperature sensing device automatically enters the boot process to improve the user's operating experience.

One of the many objects of the present invention is to provide a temperature sensing device with automatic switching mode and a method for automatically switching modes. A detection unit detects a moment when the temperature sensing device is in a stationary state, so that the temperature sensing is enabled. Test the device's shutdown procedure to reduce the time for automatic shutdown in standby mode.

In order to achieve the above objects of the present invention, the present invention provides a temperature sensing device with automatic switching mode, which includes: a control unit that determines whether the temperature sensing device enters or leaves a first mode or a second mode; a power supply A power supply unit that provides power to the temperature sensing device; and a power supply circuit including the power supply unit and electrically connected to the control unit to provide power, characterized in that the power supply circuit includes a detection unit and the detection unit The power supply unit and the control unit are electrically connected, and the detection unit detects a moment when the temperature sensing device is moved from a rest state, so as to enable the control unit to determine that the temperature sensing device leaves the first mode and enters the In a second mode, the detection unit detects when the temperature sensing device is in a resting state, so that the control unit can determine that the temperature sensing device enters the first mode.

To achieve the above-mentioned objects of the present invention, 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. The method includes: providing a temperature sensing device in the temperature sensing device. A detection unit, which is electrically connected to a power supply unit and a control unit; and uses the detection unit to detect a moment 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 uses the detection unit to detect when the temperature sensing device is in a stationary state, so that the control unit determines that the temperature sensing device enters the first mode. .

According to the present invention, the temperature sensing device and the method for automatically switching modes of the automatic switching mode, the first mode is an automatic detection mode or a state of automatically shutting down in a standby state, and the second mode is a standby state or temperature measurement mode or turning on The state after the procedure.

According to the temperature sensing device of the automatic switching mode and the method of the automatic switching mode of the present invention, the detection unit can be actuated by a push switch, a gravity sensor (G-sensor), a ball switch, a mercury switch, or a light switch that can be actuated by the surface of the housing. Sensor.

According to the temperature sensing device implemented by the present invention and the method for automatically switching modes, a user operating the temperature sensing device of the present invention, such as a forehead thermometer or an ear thermometer, will obtain "automatic start-up when picked up from a stationary state" Or "the measurement mode will be automatically turned on when picked up from a stationary state" operation experience, and reduce the average time required to use each time is about 3 to 5 seconds to confirm "device is turned on" or "whether it has entered a measurable state" Time, and shorten the countdown time to shut down directly and automatically shut down, 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 Temperature Sensor

16‧‧‧ Siren

17‧‧‧Memory (EEPROM)

18‧‧‧ communication port

19‧‧‧shell

20‧‧‧Power circuit

21‧‧‧ Detection Unit

100,200,300‧‧‧Automatic switching mode

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

C‧‧‧Capacitor

L‧‧‧ contact surface

Q‧‧‧Transistor

R1, R2, R3‧‧‧ resistance

The first figure is a block diagram of a temperature sensing device in an 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 according to the present invention.

The third figure is a flowchart of an automatic switching mode of a temperature sensing device according to the present invention.

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

FIG. 5A and FIG. 5B are flowcharts of another automatic switching mode of the temperature sensing device of the present invention.

The sixth figure is a flowchart of another automatic switching mode of the temperature sensing device of the present invention.

Please refer to the first figure, which shows a block diagram of the temperature sensing device of the automatic switching mode of the present invention. In the embodiment of the present invention, the temperature sensing device 10 in the automatic switching mode includes a control unit (MCU) 11. The control unit 11 determines whether the temperature sensing device 10 enters or leaves a first mode or a second mode. It is electrically connected to other blocks shown in the first figure and executes the temperature sensing function of the temperature sensing device 10; a communication port 18 receives externally set calibration parameters and programs; a memory (EEPROM) 17 stores the calibration Parameters and programs for the control unit 11 to access; a digital proximity sensor 14 and a thermopile temperature sensor 15 sense the measurement data of the human body for the control unit 11 to calculate the human ear temperature or Forehead temperature; a function key 13 triggers the control unit 11 to perform temperature calculation processing steps and display measurement data steps, as shown in the third, fifth A, five B, and six; a buzzer 16 is triggered at the function key 13 When the control unit 11 is controlled, an alarm sound is generated by the control unit 11; an LCD display 12 displays the human ear or forehead temperature calculated by the control unit 11; and a power circuit 20 is electrically connected to the control unit 11 to mention Power is supplied to the other blocks shown in the first figure through the control unit 11 in the working state. The power circuit 20 includes a power supply unit (not shown) and a detection unit 21, where 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 uses a battery as an example. The detection unit 21 is electrically connected to the battery and the control unit 11, and the detection unit 21 detects the moment when the temperature sensing device 10 is moved from a resting state to enable The control unit 11 determines that the temperature sensing device 10 leaves the first mode and enters the second mode, and the detection unit 21 detects a moment when the temperature sensing device 10 is in a stationary state, so that the control unit 11 is enabled. It is determined that the temperature sensing device 10 enters the first mode.

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

In an embodiment of the present invention, the battery of the power supply circuit 20 directly supplies power to the control unit 11 and the memory 17, and the detection unit 21 is electrically connected to a pin of the control unit 11. The sensing 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 on and working, 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 static state and the pin is at a low potential (L), the control unit 11 continues to judge whether the potential of the pin has changed until the time when the detecting The detecting unit 21 detects the moment when the temperature sensing device 10 is moved or picked up from a resting state, and the pin is changed to a high potential, the control unit 11 executes the startup procedure according to the program to perform the temperature sensing device. 10 initial settings. Therefore, the detection unit 21 enables the control unit 11 to determine that the temperature sensing device 10 leaves the automatic detection mode and enters the startup procedure or the standby state or the temperature measurement mode. In addition, in order to prevent the temperature sensing device 10 from being accidentally moved due to being in a stationary state, but the user has not picked up the temperature sensing device 10, the control unit 11 can judge the potential state of the pin to exclude this one. Malfunctions, for example: when the potential of the pin changes from L to H, and soon from H to L, the control unit 11 will not execute the startup procedure and leave the automatic detection mode (first mode).

According to the prior art, the conventional temperature sensing device starts a shutdown time counting in a 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 in the standby state, if the detection unit 21 detects the moment when the temperature sensing device 10 is in the stationary state, and the pin When it is at a low potential (L), the control unit 11 does not need to wait until the shutdown counting time ends, and can directly shut down to shorten the automatic shutdown time of the prior art, and also achieve the effect of saving battery energy.

Please refer to the second figure, which shows a front view, a perspective view, and a side view of a temperature sensing device according to the present invention. In this embodiment of the present invention, the temperature sensing device 10 of the present invention includes a housing 19, and all the blocks shown in the first figure are arranged in the housing 19. The detection unit 21 of the power circuit 20 is formed by the housing. The body surface is realized by a push switch. The casing 19 is designed according to the outline shown in the second figure and matched with the gravity provided by the battery installed in the casing 19, so that when the temperature sensing device 10 is placed on a plane L, regardless of its initial placement posture, The outline design of the casing 19 is like a tumbler, so that the casing 19 will eventually keep a predetermined bottom contacting the plane L. The pressing switch serving as the detection unit 21 will be installed on a predetermined bottom of the casing 19, and a convex portion capable of operating the pressing switch will protrude from the surface of the predetermined bottom. Therefore, as shown in the second figure, when the temperature sensing device 10 is placed on a plane L, the bottom of the housing 19 contacting the plane L will cause the convex portion of the push switch to act, and the push switch is pressed. When the temperature sensing device 10 is picked up from the plane L, leaving the bottom of the housing 19 away from the plane L will cause the convex portion of the pressing switch to be inactive and the pressing switch will not be pressed. In addition, the pressing switch is disposed at a preset bottom of the housing 19, preferably to avoid a user from operating the holding portion of the temperature sensing device 10, so as to prevent a malfunction caused by pressing the pressing switch during temperature measurement.

In this embodiment of the present invention, the power supply circuit 20 configures the push switch in the power supply path between the battery and the control unit 11. When the push switch is pressed, the control unit 11 is turned off, and when the push switch When from the pressed state to the unpressed state, the control unit 11 will be powered into the working state to execute the startup 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 detection unit 21 to increase the chance of the push switches being pressed according to the different 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 one of the pressing switches can be pressed to bring the control unit 11 into a shutdown state. In still another embodiment of the present invention, the casing 19 has a movable protruding mechanism, as shown in the second figure, the mechanism protruding from the surface of the casing. When the protruding mechanism is pressed, the protruding mechanism At least one pressing switch of the power circuit 20 in the casing 19 can be actuated to achieve the purpose of the present invention in the foregoing embodiments.

Please refer to the third figure for a flowchart of an automatic switching mode of a temperature sensing device according to the present invention. In this embodiment of the present invention, the temperature sensing device 10 of the present invention includes a housing 19, as shown in the second figure, and all the blocks shown in the first figure are arranged in the housing 19, in which the power supply circuit 20 The detection unit 21 is implemented by a push switch that is protruded and actuated on 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, and includes: Step 101: Detecting under pressure, and judging the power circuit in the first mode Whether the pressing switch of 20 is pressed down to determine whether the temperature sensing device 10 leaves the first mode. When the temperature sensing device 10 is placed on a flat surface, the outline design of the casing 19 is like a tumbler, regardless of its initial placement posture. Generally, the bottom of the casing 19 contacts the plane to cause the pressing switch to be pressed. Therefore, the temperature sensing device 10 continues to be in a first mode, such as an off state or an automatic detection mode; until the bottom of the casing 19 leaves the plane If the pressing switch is not pressed, the power circuit 20 will supply power to the control unit 11 and enable it to enter the working state. In different embodiments, when the temperature sensing device 10 is placed in a box, the pressing switch It is pressed by the cover of the box body, wherein the inner surface of the cover is a contact surface that contacts the pressing switch. When the cover of the box body is opened so that the contact surface is not pressed by the pressing switch, the power circuit 20 will supply power to the control unit 11 and enable it to enter the working state. Step 2: Start-up procedure, the control unit 11 is powered on and enters the working state. The control unit 11 reads the program of the memory 17 to execute the startup procedure to initialize the temperature sensing device 10 (including the control unit 11 supplying power to the first After 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, it is determined whether the function key 13 is pressed. If the function key 13 is pressed, the control unit 11 executes the temperature calculation process of step 104. 13 is not pressed, the control unit 11 executes 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 also has a shutdown function. When the function key 13 is continuously pressed for a period of time, it immediately enters a shutdown state. Step 104: temperature calculation processing, the control unit 11 enables the digital proximity sensor 14 and the thermopile temperature sensor 15 to sense the measurement data of the human body, and then calculates the ear temperature or the forehead temperature of the human body, and then the control unit 11 Step 105 is performed to display the measurement data. In step 105, the measurement data is displayed. The control unit 11 displays the calculated ear temperature or forehead temperature data of the human body on the LCD display 12, returns to the second mode, and proceeds to step 103. In 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 executes the shutdown time judgment in step 107. Step 107: the shutdown time, the control unit 11 judges that the shutdown time count result has not reached the shutdown time, returns to the second mode, and continues to execute step 103, until it is determined that the shutdown time count result reaches the shutdown time, the control unit 11 determines the temperature sensing The device 10 enters the first mode and executes step 101.

Please refer to the fourth figure, which shows a circuit diagram of a power supply circuit 20 of the temperature sensing device of the present invention. In this embodiment of the invention, the power circuit 20 uses a full-phase ball switch as the detection unit 21. The all-phase ball switch has two electrical contacts, and its 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 Short-term open. The power circuit 20 includes an RC circuit. The RC circuit includes resistors R1, R2, and R3 and a capacitor C, as shown in the figure. The all-phase ball switch is matched with an RC circuit to form a loop. The parameters of the R1, R2, R3 and capacitor C of the RC circuit 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 in a short-circuit conduction state. The level of its electrical contact 1 is determined by the resistor R2 and R3 in parallel with the divided voltage of the resistor R1. The higher the easier it is to trigger the transistor Q to turn on, that is, the higher the sensitivity. When the value of the resistor R1 and the capacitor C is larger, when the ball switch is shaken, the voltage rise time of the electrical contact 1 will be slower, the less easily the transistor Q will be turned on, and the sensitivity will be lower. When the transistor Q is turned on, the control unit 11 is enabled and the work is executed to enter a standby state or a temperature measurement mode. In addition, the use of the transistor Q as a buffer in the power supply circuit 20 allows the control unit 11 to avoid excessive standby power consumption when the control unit 11 is turned off.

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

Please refer to FIG. 5A and FIG. 5B for a flowchart of another automatic switching mode of the temperature sensing device of the present invention. In this embodiment of the present invention, the temperature sensing device 10 of the present invention includes a housing 19. All the blocks shown in the first figure are arranged in the housing 19, and the detection unit 21 of the power supply circuit 20 is optional. All-phase ball switches, gravity sensors, or mercury switches are used to implement the shaking state sensed by the detection unit 21 to the potential change of a pin of the control unit 11, and the control unit 11 is powered and working. Detect and judge potential changes. The automatic switching mode of the temperature sensing device 10 in this embodiment can use the method 200 shown in FIG. 5A and the method 210 shown in FIG. 5B. The difference between the two is only in the order of the steps. The technical field to which the invention belongs has general knowledge Can be easily associated and completed easily. The method 200 shown in FIG. 5A enters the second mode (or standby mode) of the standby state after the temperature sensing device 10 is shaken away from the first mode; the method 210 shown in FIG. 5B is in the temperature sensing device 10 After being shaken from the first mode, it enters a second mode (or temperature measurement mode) for measuring temperature.

Please refer 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, including: Step 201: shake detection, in the first mode In the automatic detection mode, the control unit 11 determines the potential change of the pins associated with the detection unit 21 to determine whether the temperature sensing device 10 leaves the first mode. When the temperature sensing device 10 is placed in a When the plane is at rest, the detection unit 21 senses that it is not shaken, so that the control unit 11 detects that the pins are at a fixed potential, such as a low potential. Therefore, the temperature sensing device 10 continues to be in the first mode; until the The temperature sensing device 10 is moved or picked up, the detection unit 21 senses shaking, so that the control unit 11 detects a change in the potential of the pin, thereby determining to enter the working state and leave the first mode. Step 202: a startup procedure, the control unit 11 executes the startup procedure according to the program of the memory 17 to initialize the temperature sensing device 10 (including the control unit 11 supplying power to the other blocks shown in the first figure), the temperature sensor 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 shaking state sensed by the detection unit 21 can be used to trigger the temperature sensing device 10 by changing the potential of a pin associated with the control unit 11. Perform temperature measurement and display. Step 203: shake detection. In the second mode, the control unit 11 detects a change in the potential of the pin to determine whether the detection unit 21 senses the shake. If there is a shake, the control unit 11 performs the temperature calculation in step 204. Processing, if not shaken, the control unit 11 executes the shutdown time count of step 206. In another embodiment of the present invention, in the second mode, in step 203, the control unit 11 can determine whether the function key 13 is pressed. If the function key 13 is pressed, the control unit 11 executes the temperature calculation process in step 204. If the function key 13 has not been pressed, the control unit 11 performs a shutdown time count of step 206. In addition to triggering the temperature measurement function, the function key 13 also 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, the control unit 11 enables the digital proximity sensor 14 and the thermopile temperature sensor 15 to sense Regarding the measurement data of the human body, after calculating the ear temperature or frontal temperature of the human body, the control unit 11 executes displaying the measurement data in step 205. In step 205, the measurement data is displayed. The control unit 11 displays the calculated ear temperature or forehead temperature data of the human body on the LCD display 12, returns to the second mode, and proceeds to step 203. In step 206, the shutdown time is counted. When the temperature sensing device 10 is in the second mode and the detection unit 21 does not shake, the control unit 11 starts the shutdown time counting, and executes the shutdown time judgment in step 207. In step 207, the shutdown time, the control unit 11 judges that the shutdown time count result has not reached the shutdown time, returns to the second mode, and continues to execute step 203, until it is determined that the shutdown time count result reaches the shutdown time, the control unit 11 determines the temperature sensing The device 10 enters the first mode and executes step 201.

Please refer to FIG. 5B. The difference between the method 210 of the present invention for automatic switching mode and the method 200 shown in FIG. 5A lies in the order of steps, and the same step numbers 201, 202, ... perform the same content. Therefore, in the method 210 for automatically switching modes of the present invention, after the temperature sensing device 10 is shaken away from the first mode, it enters a second mode (or weighing mode) for measuring temperature and performs steps 204 and 205. 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 still, then return to the first mode via steps 206 and 207.

Please refer to FIG. 6 for a flowchart of another automatic switching mode of the temperature sensing device of the present invention. In this embodiment of the present invention, the temperature sensing device 10 of the present invention includes a housing 19. All the blocks shown in the first figure are arranged in the housing 19, and the detection unit 21 of the power supply circuit 20 is optional. It is realized by a light sensor. The casing 19 is designed according to the outline shown in the second figure and is matched with the gravity provided by the battery installed in the casing 19, so that when the temperature sensing device 10 is placed on a plane L, Regardless of its initial placement posture, the outline design of the casing 19 is like a tumbler, so that the casing 19 will eventually maintain a preset bottom contacting the plane L. The light sensor as the detection unit 21 will be installed on a preset bottom of the casing 19, and when the temperature sensing device 10 is left at rest, the bottom of the casing 19 is kept down and the light 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 leave the light sensor unshielded. In addition, in the power supply circuit 20, the shielding state of the sensing unit 21 is associated with a potential change of a pin of the control unit 11, and the control unit 11 detects and judges 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, such as the automatic detection mode, the control unit 11 determines the potential change of the pins associated with the detection unit 21 to determine whether the temperature sensing device 10 leaves the first mode. When the temperature sensing device 10 When placed on a flat surface at rest, the detection unit 21 detects that the light is shielded, so that the control unit 11 detects that the pins are at a fixed potential, such as a low potential. 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 detection unit 21 detects that the light is not blocked, so that the control unit 11 detects a change in the potential of the pin, thereby determining to enter the working state and leave the first mode. Step 302: Start-up procedure. The control unit 11 executes the startup procedure according to the program of the memory 17 to initialize the temperature sensing device 10 (including the control unit 11 supplying power to other blocks shown in the first figure). 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, it is determined whether the function key 13 is pressed. If the function key 13 is pressed, the control unit 11 executes the temperature calculation processing of step 304. 13 is not pressed, the control unit 11 performs a 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 also has a shutdown function. When the function key 13 is continuously pressed for a period of time, it immediately enters a shutdown state. Step 304, temperature calculation processing. The control unit 11 enables the digital proximity sensor 14 and the thermopile temperature sensor 15 to sense the measurement data of the human body, and then calculates the ear temperature or the forehead temperature of the human body, and then the control unit 11 Step 305 is executed to display the measurement data. In step 305, the measurement data is displayed, and the control unit 11 displays the calculated ear temperature or forehead temperature data of the human body on the LCD display 12, returns to the second mode, and proceeds to step 303. In 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 count and executes the shutdown time judgment in step 307. In step 307, the shutdown time, the control unit 11 judges that the shutdown time count result has not reached the shutdown time, returns to the second mode, and continues to execute step 303, until it is determined that the shutdown time count result reaches the shutdown time, the control unit 11 determines the temperature sensing The device 10 enters the first mode and executes step 301.

In addition, according to the second mode shown in FIG. 5A, the judgment of step 203 teaches “shake detection”. Those with ordinary knowledge in the technical field to which the invention belongs can also easily associate and easily complete the first and second steps shown in the third and sixth figures. In the two modes, the judgment of steps 103 and 203 can be replaced by "function key detection" by "shake detection", and the temperature calculation processing and measurement data are displayed according to the second mode shown in Fig. 5B, and then the judgment step is performed. A person with ordinary knowledge in the technical field to which the invention belongs can also easily associate and easily complete the temperature calculation processing and display the measurement data in the second mode shown in the third and sixth figures before performing the determination step.

Claims (10)

    A temperature sensing device that automatically switches 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 unit that provides power to the temperature sensing device; and A power circuit includes the power supply unit and is electrically connected to the control unit to provide power. The power circuit includes a detection unit that detects that the temperature sensing device is shaken from a static state. At this moment, the control unit is enabled to determine that the temperature sensing device leaves the first mode and enters the second mode.         According to the temperature sensing device of the automatic switching mode described in item 1 of the scope of the patent application, wherein the detecting unit senses a shaking state of the temperature sensing device and relates to a potential change of a pin of the control unit, so that the control The unit determines that the temperature sensing device leaves the first mode and enters the second mode.         According to the temperature sensing device of the automatic switching mode described in item 2 of the scope of the patent application, wherein the power circuit includes a transistor, the collector of the transistor is connected to a working voltage via a resistor, and the pin is connected to the transistor. The emitter of the transistor is connected to the ground of the control unit. The base of the transistor is connected to the working voltage via a first resistor and the ground is connected to the ground via a second resistor. A capacitor is connected between the base of the transistor and the emitter in parallel. The detection unit and a third resistor are connected in series.         According to the temperature sensing device of the automatic switching mode described in item 1 or 2 or 3 of the scope of patent application, the detection unit is an all-phase ball switch, a gravity sensor, or a mercury switch.         According to the temperature sensing device of the automatic switching mode described in item 3 of the scope of the patent application, the first, second, and third resistors and the capacitor are used to adjust the sensitivity of the detection unit to sense the shaking state.         The temperature sensing device of the automatic switching mode described in item 1 of the patent application scope, wherein after the temperature sensing device leaves the first mode and enters the second mode, the detecting unit senses the temperature of the temperature sensing device. The shaking state, so that the control unit keeps the temperature sensing device in the second mode.         A method for automatically switching modes, suitable for a temperature sensing device entering or leaving a first mode or a second mode, comprising: providing a detection unit in the temperature sensing device; and detecting using the detection unit The moment when the temperature sensing device is shaken from the resting state, the temperature sensing device leaves the first mode and enters the second mode.         A method for automatically switching modes, suitable for a temperature sensing device entering or leaving a first mode or a second mode, comprising: providing a detection unit in the temperature sensing device, the detection unit sensing the temperature The shaking state of the sensing device is related to a potential change of a pin of a control unit; and the control unit determines whether the temperature sensing device leaves the first mode or stays in the second according to the potential change of the pin. mode.         The method for automatically switching modes according to item 7 or 8 of the scope of patent application, wherein the detection unit is an all-phase ball switch, a gravity sensor, or a mercury switch.         The method for automatically switching modes as described in item 7 or 8 of the scope of patent application, further comprising: after the temperature sensing device leaves the first mode and enters the second mode, the detecting unit senses the temperature sensing device The shaking state of the sensor causes the temperature sensing device to remain in the second mode.