TWI439969B - Radio-frequency rescuing system, rescuing method and application program for the same - Google Patents

Description

RF rescue system, rescue method and application program

The present invention relates to a rescue system, and more particularly to a rescue system for finding the location of a trapped refugee by radio frequency.

Generally speaking, when a disaster (such as an earthquake or a mountain disaster) occurs, the actions of the victims will be limited and they can only passively wait for rescue. Therefore, in today's mobile phone popularity, people in need often take the initiative to request outside rescue with electronic devices with communication functions (such as telephone or newsletter).

However, when a disaster occurs, the base station of the telecommunications communication is often damaged, resulting in poor signal or disconnection. Or, it may cause the phone line to break, making it impossible for people to make a call. In this way, not only the peaceful people can't report their safety to their families by phone, but the victims can't ask for help by phone. The communication network is similar.

Moreover, through the services of the telecommunications operators, the location of the communication device (such as a mobile phone) can also be located through the network. Therefore, the rescuer can lock a specific disaster area and locate the communication equipment in the specific disaster area to find out the location of the possible victims. However, when the disaster is serious, it may cause damage to network equipment and affect the transmission of network signals. In this way, the rescuers not only The communication equipment cannot be located, and the victims can not use electronic devices such as computers or mobile phones to actively seek assistance through the Internet, and the Internet is ineffective.

Therefore, how to use the novel systems and methods to help search for the location of the victims who cannot actively seek assistance in the event of a disaster is a problem that rescuers need to overcome.

The main purpose of the present invention is to provide a radio frequency rescue system, a rescue method and an application program thereof, which are helpful for a rescuer to determine the distance between a refugee and a rescuer by analyzing the signal strength of the radio frequency signal at the disaster site. In order to find the location of refugees who can not actively seek help.

To achieve the above objective, the radio frequency rescue system of the present invention includes at least one radio frequency tag, at least one radio frequency reader, and at least one smart electronic device, wherein the radio frequency tag is disposed on the general public. When a disaster occurs, the button unit on the radio frequency tag can be triggered by the refugee to activate the RF tag and continue to send a reply signal. If the refugee is unable to trigger the button unit on the RF tag due to limited mobility, the RF tag can be triggered and activated by the external trigger. The RF tag continues to send a reply signal after activation. After receiving the reply signal, the RF reader transmits the signal to the smart electronic device to analyze the signal strength of the reply signal through the application, and then determine the distance between the RF tag that sends the reply signal and the RF reader that receives the reply signal. What's more, the rescuers can move in different directions to determine the position and actual position of the affected people by changing the signal strength and distance corresponding to different directions.

The effect of the present invention over the prior art is that in the event of a disaster, the equipment of the network system such as the Internet and the communication network is often damaged and cannot be used, and further, the disaster Difficult to happen when the Internet and communication network signals are not available (such as in the mountains), often the rescuers can do nothing. Through the invention, when the Internet and the communication network are not available, the rescuer can search for the location of the refugees through short-distance transmission formats, such as the use of radio frequency, to save the rescue. Moreover, even if the network equipment or communication equipment can be used normally, when the refugees have unfortunately passed away and cannot actively seek assistance from outside, the invention can still use the radio frequency to let the rescuers know the location of the refugee remains. .

1‧‧‧RF reader

11‧‧‧Physical connection interface

10‧‧‧Rescuers

2‧‧‧RF tags

20‧‧‧General public

21‧‧‧Microprocessing unit

22‧‧‧ memory

23‧‧‧Signal transmission unit

24‧‧‧ button

25‧‧‧ battery unit

26‧‧‧Sensor unit

27‧‧‧Display unit

28‧‧‧Gravity sensor

T1‧‧‧ label number

T2‧‧‧ label description

3‧‧‧Smart electronic devices

30‧‧‧Application

31‧‧‧ Display screen

311‧‧‧Exploration page

311A‧‧‧Lock field

312‧‧‧ Record page

313‧‧‧System page

314‧‧‧Setting page

I1‧‧‧ signal strength

I2‧‧‧ distance

I3‧‧‧Time

S1‧‧‧ inquiry signal

S2‧‧‧ reply signal

S300A~S302A, S300B, S300C~S302C, S300D‧‧‧ steps

S32~S38, S360, S362‧‧‧ steps

The first drawing is a schematic representation of one preferred embodiment of the invention.

Figure 2A is a system architecture diagram of a preferred embodiment of the present invention.

Figure 2B is a system architecture diagram of another preferred embodiment of the present invention.

The third figure is a block diagram of a radio frequency tag of a preferred embodiment of the present invention.

Fourth Figure A is a flow chart of a first embodiment of the present invention.

Figure 4B is a flow chart of a second embodiment of the present invention.

Figure 4C is a flow chart of a third embodiment of the present invention.

Fourth Figure D is a flow chart of a fourth embodiment of the present invention.

The fifth figure is a schematic diagram showing the first page of the present invention.

The sixth drawing is a schematic diagram showing the second page of the present invention.

The seventh drawing is a schematic diagram showing the third page of the present invention.

The eighth figure is a schematic diagram showing the fourth page of the present invention.

The ninth drawing is a schematic diagram showing the fifth page of the present invention.

DETAILED DESCRIPTION OF THE INVENTION A preferred embodiment of the present invention will be described in detail with reference to the drawings.

Referring first to the first drawing, a schematic view of a preferred embodiment of the present invention is shown. The radio frequency rescue system disclosed in the present invention mainly comprises at least one radio frequency reader 1, at least one radio frequency tag 2 and at least one smart electronic device 3 (hereinafter referred to as the electronic device 3 in the following description). Each of the RF readers 1 is mainly disposed on a rescuer 10, and each of the RF tags 2 is mainly carried by the general public 20.

When a disaster occurs, the general public 20 is trapped in a disaster site (such as rubble, mound, underground road or deep mountain), the mobility is inconvenient, and the equipment of the Internet and communication network is damaged, and it is impossible to pass communication equipment such as computers and mobile phones. When seeking external assistance, the rescuer 10 can be assisted by the RF rescue system of the present invention.

Please refer to FIG. 2A at the same time, which is a system architecture diagram of a preferred embodiment of the present invention. During the disaster relief, the general public 20 carries a radio frequency tag 2 with them, and is scattered around the disaster site. Each rescuer 10 carries one RF reader 1 respectively. After the RF tag 2 is activated, a reply signal S2 is continuously sent out, so that the RF reader 1 can read the reply signal S2 to obtain the message of the RF tag 2. Each of the radio frequency tags 2 is activated in the following situations:

1. The RF reader 1 continuously sends an inquiry signal S1, and when the RF reader 1 enters the signal reading range of one of the RF tags 2, the RF tag 2 can receive the RF tag 2 Ask for signal S1. The radio frequency tag 2 is activated after receiving the inquiry signal S1, and after the activation, a reply signal S2 is continuously sent out.

Second, the general public 20 can trigger the radio frequency standard on the body when the disaster occurs. A button unit 24 (such as the button unit 24 shown in the third figure) of the sign 2 is used to activate the radio frequency tag 2, so that the radio frequency tag 2 continuously sends the reply signal S2 after being activated. When the RF reader 1 receives the reply signal S2, the rescuer 10 can know that the RF tag 2 exists nearby, that is, there is a refugee nearby.

Third, each rescuer 10 can also carry an external tester (not shown), such as a light sensor or an audio sensor, to emit an electronic signal, such as light waves or audio. Each of the radio frequency tags 2 senses the electronic signal within a certain distance and is activated after sensing the electronic signal. And after the RF tag 2 is activated, a reply signal S2 is continuously sent out.

4. The radio frequency tag 2 can be provided with a gravity sensor 28 (G-sensor) (such as the gravity sensor 28 shown in the third figure) for sensing the instantaneous acceleration value change of the radio frequency tag 2. . When the general public 20 is equipped with the radio frequency tag 2 and encounters an accident such as an earthquake, a fall, or an impact, the radio frequency tag 2 can be activated due to a change in the instantaneous acceleration value.

Each of the rescuers 10 may carry at least one electronic device 3, such as a laptop, a tablet computer or a smart mobile phone, in addition to each of the RF readers 1, respectively. Limited. The electronic device 3 mainly has a display screen 31, and an application 30 is installed inside the electronic device 3.

After receiving the reply signal S2 sent by the radio frequency tag 2, the RF reader 1 transmits the reply signal S2 to the electronic device 3 for further analysis and determination by the application in the electronic device 3. As shown in FIG. 2A, the RF reader 1 and the electronic device 3 are mainly connected through a network system, such as a Bluetooth transmission interface. The reply signal S2 is transmitted. However, this is only a preferred embodiment of the present invention. Any network system that conforms to the short-range transmission format can be used to transmit the reply signal S2, which is not limited.

As shown in FIG. 24B, it is a system architecture diagram of another preferred embodiment of the present invention. Each of the RF readers 1 is electrically connected to the electronic device 3 through a physical connection interface 11 in addition to connecting to the electronic device 3 via a wireless network system, such as a Bluetooth transmission interface, and transmitting the signal. To pass a signal (for example, the reply signal S2). The physical connection interface 11 can be, for example, a Universal Serial Bus (USB) connection interface, but is not limited.

After receiving the reply signal S2, the electronic device 3 analyzes the signal strength of the reply signal S2 mainly through the internal application 30, so that the application 30 can further determine the RF frequency through the signal strength of the reply signal S2. The distance between the reader 1 and the radio frequency tag 2. That is, the distance between the rescuer 10 and the general public 20 who is suffering can be determined. Therefore, the rescuer 10 can determine the orientation and actual position of the suffering people through the change of the signal strength and the distance during the movement. The application 30 mainly determines the signal strength of the response signal S2 by receiving a Received Signal Strength Indication (RSSI) technique, but is not limited thereto.

It is worth mentioning that in the disaster relief, at least three or more of the rescuers 10 can be grouped together. The following three examples will be used as an example. The three rescuers 10 carry one of the RF readers 1 and advance with a specific team type (for example, a triangle in a fixed ratio) for searching. Alternatively, three or more fixed RF readers 1 are placed at the disaster site (for example, three for example, forming a fixed ratio of triangles), and the three fixed position RF readers 1 Lock at least one at the same time The radio frequency tag 2 of the target. The three RF readers 1 receive the response signal S2 simultaneously with the same RF tag 2 of the target, and the electronic device 3 receives the response signal S2 transmitted by the three RF readers 1, respectively. The application 30 of the electronic device 3 can calculate the distance between the three RF readers 1 and the target RF tag 2, thereby further calculating the RF tag 2 by positioning. Information such as the orientation and the actual position of the radio frequency tag 2. More specifically, if the number of the radio frequency readers 1 is three, the information such as the orientation and the actual position of the radio frequency tag 2 can be accurately calculated by triangulation.

In this embodiment, the radio frequency tag 2 mainly includes a tag number T1, and a tag description T2 corresponding to the tag number T1 may be preloaded in the application 30 of the electronic device 3 (for example, The name and address of the holder of the RF tag 2, etc.). The reply signal S2 sent by the radio frequency tag 2 mainly includes the tag number T1 of the radio frequency tag 2, but is not limited. In this way, when the electronic device 3 receives the reply signal S2 and displays the result of the analysis and determination, the rescuer 10 can obtain the corresponding tag number in the application 30 through the tag number T1 of the radio frequency tag 2. This tag of T1 describes T2 for the purpose of confirming the data of the holder of the radio frequency tag 2.

The third figure is a block diagram of a radio frequency tag according to a preferred embodiment of the present invention. As shown in the figure, in the embodiment, the radio frequency tag 2 mainly includes a micro control unit (MCU) 21, a signal transmission unit 22, a memory 23, and the button unit 24, wherein the MCU 21 The signal transmitting unit 22, the memory 23 and the button unit 24 are electrically connected at the same time. The signal transmitting unit 22 receives the inquiry signal S1 transmitted by the RF reader and transmits it to the MCU 21 after receiving to activate the RF tag 2. The memory 23 is configured to record the content of the reply signal S2. For example, the information such as the radio frequency number T1 is used to transmit the reply signal S2 through the signal transmitting unit 22 after the radio frequency tag 2 is activated.

The button unit 24 provides the holder of the radio frequency tag 2 to activate the radio frequency tag 2 in a manner to trigger the button unit 24, so that the radio frequency tag 2 sends the reply signal S2 to the outside. It is to be noted that the RF tag 2 may further include a battery unit 25 electrically connected to the MCU 21 and the memory 23 for providing power required for the MCU 21 and the memory 23 to operate, but is not limited thereto.

The RF tag 2 further includes a sensing unit 26 electrically connected to the MCU 21. The sensing unit 26 is mainly used to sense an electronic signal emitted by the external tester (not shown), for example, a light wave emitted by a light sensor or an audio emitted by an audio sensor. Therefore, the sensing unit 26 notifies the MCU 21 after sensing the electronic signal to activate the radio frequency tag 2, so that the radio frequency tag 2 starts to issue the reply signal S2.

The radio frequency tag 2 further includes a gravity sensor 28 electrically connected to the MCU 21. The gravity sensor 28 is mainly configured to sense an instantaneous change of the acceleration value on the radio frequency tag 2. When the radio frequency tag 2 passes the gravity sensor 28 to sense a certain degree of acceleration value change, the radio frequency tag is used. 2 starts, and starts to send the reply signal S2 after starting. As described above, in this embodiment, the radio frequency tag 2 can be activated in at least four manners, including: Receiving the inquiry signal S1 by the signal transmission unit 23; The button unit 24 is triggered; The electronic signal is sensed by the sensing unit 26; and, IV. A certain degree of acceleration value change is generated on the radio frequency tag 2.

The RF tag 2 further includes a display unit 27, which can be, for example, a Light Emitting Diode (LED) electrically connected to the MCU 21. Display unit 27 is mainly used to display whether the radio frequency tag 2 is activated or not, whether the inquiry signal S1 is received or not, whether the button unit 23 is triggered, whether the electronic signal is sensed or not, and whether the reply signal S2 is sent or not. Wait for the message to alert the holder of the RF tag 2, but not limited.

Continuing to refer to FIG. 4A, a flowchart of a first embodiment of the present invention. First, the RF reader 1 continuously sends the inquiry signal S1 to the outside (step S300A). Then, when the RF reader 1 moves to the signal receiving range of one of the RF tags 2, the RF tag 2 can be The inquiry signal S1 is received (step S302A). The radio frequency tag 2 is activated after receiving the inquiry signal S1, and the radio frequency tag 2 continuously sends the reply signal S2 after starting (step S32).

The RF reader 1 receives the reply signal S2 from the RF tag and transmits the reply signal S2 to the electronic device 3 (step S34). The RF reader 1 transmits the reply signal S2 to the electronic device 3 through the Bluetooth transmission interface, or transmits the reply signal S2 to the electronic device 3 through the physical connection interface 11, which is not limited. After receiving the reply signal S2 from the RF reader 1, the electronic device 3 analyzes and determines the reply signal S2 through the application 30 (step S36). More specifically, the electronic device 3 first analyzes the received signal strength of the reply signal S2 through the application 30 (step S360), and then uses the application 30 to determine the signal strength of the reply signal S2. The distance between the radio frequency tag 2 and the radio frequency reader 1 (step S362).

It is worth mentioning that the rescuer 10 can carry the radio frequency reader 1 and determine the suffering population (ie, the radio frequency tag 2) by changing the signal strength and distance corresponding to different directions in different azimuth movements. Azimuth and actual position. Or, by using three or more of the RF readers 1 to simultaneously lock one of the RF tags 2, The application 30 calculates the orientation and actual position of the radio frequency tag 2 by a triangulation algorithm. Finally, the electronic device 3 displays the result of the above analysis judgment through the display screen 31 thereon (step S38).

Fourth Figure B is a flow chart of a second embodiment of the present invention. In addition to the above-described RF tag 2 being activated by the RF reader 1 in the manner of the inquiry signal S1, the holder of the RF tag 2 can also activate the RF tag 2 in an active manner. As shown in the fourth figure B, the button unit 24 on the radio frequency tag 2 is triggered (step S300B) to trigger activation of the radio frequency tag 2. Then, the step S30 to the step S38 shown in FIG. 4A are performed to analyze the judgment signal strength and the distance, and the result of the analysis judgment is displayed on the electronic device 3.

Fourth Figure C is a flow chart of a third embodiment of the present invention. As shown in the figure, in addition to the above-mentioned RF tag 2 being activated by the RF reader 1 to issue the RF signal 2, the electronic signal can be sent by the external tester (step S300C), for example, light wave. Or audio. Therefore, the radio frequency tag 2 senses the electronic signal within a certain range (step S302C), and the radio frequency tag 2 is activated after sensing the electronic signal, and after starting, performs the fourth figure A or the fourth figure. This step S32 to the step S38 shown in B.

Fourth Figure D is a flow chart of a fourth embodiment of the present invention. In addition to the above, the radio frequency tag 2 can also sense the change in the acceleration value on the radio frequency tag 2 by the gravity sensor 28 thereon (step S2300D). Therefore, when the gravity sensor 28 senses a certain degree of change in the acceleration value, the radio frequency tag 2 is activated. And, after the radio frequency tag 2 is activated, the step S32 to the step S38 shown in the fourth to fourth fourth charts C are performed.

Continuing to refer to the fifth to ninth drawings, the first page display schematic diagram to the fifth page display diagram of the present invention. The fifth and sixth figures are mainly a presentation page 311 displayed on the display screen 31 of the electronic device 3 in the above step S38. First, as shown in FIG. 5 , the search page 311 is mainly configured to display the label number T1 of the radio frequency tag 2 , the signal strength I1 of the reply signal S2 received by the radio frequency reader 1 , and the radio frequency tag 2 . The distance I2 between the radio frequency readers 1, and the time I3 and the like. However, the above description is only a preferred embodiment of the present invention and should not be limited thereto.

It is to be noted that the time I3 displayed in the search page 311 is mainly the time when the RF tag 2 sends the reply signal S2, the time when the RF reader 1 receives the reply signal S2, and the electronic The time when the device 3 receives the reply signal S2 or the time when the electronic device 3 completes the analysis and judgment is not limited.

Then, as shown in the sixth figure, when the rescuer 10 wants to lock the radio frequency tag 2 of a target that has been searched, the data of the radio frequency tag 2 can also be selected on the search page 311, and then a lock field is opened. 311A. Therefore, the selected radio frequency tag 2 is locked and displayed, and further data such as latitude, longitude, the strongest signal received by the radio frequency reader 1 and the current signal received by the radio frequency reader 1 are displayed. The rescuer 10 is made to facilitate tracking the distance, orientation and actual position of a single radio frequency tag 2. Among them, the latitude and longitude tracking data can be combined with the Global Positioning System (GPS), but is not limited.

For example, the rescuer 10 can carry the RF reader 1 and the electronic device 3, search around the disaster site, and record the strongest signal of the target RF tag 2 through the application 30 of the electronic device 3. . When it is determined that the signal received at a certain location is the strongest signal, it indicates that the refugee may be in the vertical direction of the location (for example, under a mound or rubble), and then the rescue operation can be performed for the location.

The seventh figure shows a recorded page 312 on the display screen 31 of the electronic device 3. The record page 312 mainly displays the records of all the radio frequency tags 2 detected by the radio frequency reader 1, so that the rescuer 10 can track all the previous records to facilitate disaster relief.

The eighth figure shows a system page 313 on the display screen 31 of the electronic device 3. In addition to displaying the tag number T1 of the searched radio frequency tag 2, the system page 313 can further obtain the tag description T2 corresponding to the tag number T1 in the application 30 by the tag number T1. Therefore, the rescuer 10 is made aware of the information of the holder of the radio frequency tag 2 (for example, the name or address of the holder, etc.).

The ninth figure shows a setting page 314 on the display screen 31 of the electronic device 3. As shown in the figure, the rescuer 10 can customize the display language and user name of the application 30 through the setting page 314. The setting of the radio frequency tag 2 can be set by the setting page 314, and the corresponding tag description T2 can be set for the tag number T1 of the radio frequency tag 2 and stored in the application 30. in.

Moreover, in this embodiment, the application 30 mainly determines the distance between the RF reader 1 and the RF tag 2 that sends the reply signal S2 by the signal strength of the reply signal S2. However, the conversion criterion of the signal strength and the distance may be built in the application 30, calculated by an algorithm, or set by the rescuer 10 through the setting page 314, and the like, and is not limited.

It is worth mentioning that the application 30 is mainly stored in the electronic device 3. After the electronic device 3 is loaded into the application 30 and executed, the electronic device 3 can execute the RF rescue method. More specifically, when the application 30 is loaded and executed The electronic device 3 first receives the reply signal S2 transmitted by the RF reader 1 , wherein the reply signal S2 is derived from the RF tag 2 . Then, the electronic device 3 analyzes the signal strength of the reply signal S2 through the application 30, and then determines the distance between the RF tag 2 and the RF reader 1 by the signal strength of the response signal S2. Finally, the result of the above analysis and determination is displayed by the display screen 31 on the electronic device 3.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent changes to the scope of the present invention are included in the scope of the present invention. Bright.

1‧‧‧RF reader

2‧‧‧RF tags

3‧‧‧Smart electronic devices

30‧‧‧Application

S1‧‧‧ inquiry signal

S2‧‧‧ reply signal

Claims (22)

An RF rescue system includes: at least one RF reader; at least one RF tag having a signal transmission unit, a memory and a micro control unit, the micro control unit electrically connecting the memory and the signal transmission unit The memory records a reply signal. After the radio frequency tag is activated, the micro control unit sends the reply signal through the signal transmitting unit; and at least one smart electronic device has an application installed therein; wherein, when the radio frequency is Receiving the reply signal from the radio frequency tag, the reader transmits the reply signal to the smart electronic device, and the application analyzes the signal strength of the reply signal to determine the radio frequency reader and the radio frequency The distance between the labels. The radio frequency rescue system of claim 1, wherein the radio frequency reader and the smart electronic device transmit the reply signal through a Bluetooth transmission interface. The radio frequency rescue system of claim 1, wherein the radio frequency reader has a physical connection interface, and the radio frequency reader is electrically connected to the smart electronic device through the physical connection interface to transmit the reply signal. The radio frequency rescue system of claim 1, wherein the application determines the signal strength of the reply signal by receiving a Received Signal Strength Indication (RSSI) technique. The RF rescue system of claim 1, wherein the reply signal includes a tag number of the radio frequency tag, and the application on the smart electronic device is preloaded There is a label description corresponding to the label number. After receiving the reply signal, the smart electronic device obtains the label description corresponding to the label number in the application. The radio frequency rescue system of claim 1, wherein the radio frequency tag further comprises a battery unit electrically connected to the micro control unit and the memory. The radio frequency rescue system of claim 6, wherein the radio frequency tag further comprises a button unit electrically connected to the micro control unit, the radio frequency tag is activated after the button unit is triggered, and the reply signal is sent after the startup. . The radio frequency rescue system of claim 6, wherein the radio frequency tag further comprises a sensing unit electrically connected to the micro control unit, wherein the sensing unit is configured to sense an electronic signal sent by an external tester, the radio frequency The tag senses that the electronic signal is activated by the sensing unit, and the reply signal is sent out after starting. The radio frequency rescue system of claim 8, wherein the sensing unit is a light sensing unit or an audio sensing unit, and the electronic signal is a light wave signal or an audio signal. The radio frequency rescue system of claim 6, wherein the radio frequency tag further comprises a gravity sensor electrically connected to the micro control unit, wherein the gravity sensor is configured to sense a change in an acceleration value generated on the radio frequency tag, The RF tag is activated after sensing a certain degree of acceleration value change, and the reply signal is sent out after starting. The radio frequency rescue system of claim 6, wherein the radio frequency tag further comprises a display unit electrically connected to the micro control unit. An RF rescue method is applied between at least one radio frequency tag, at least one radio frequency reader, and at least one smart electronic device, wherein the smart electronic device is installed with an application, and the radio rescue method includes: a) After the RF tag is activated, a reply signal is continuously sent, wherein the RF tag has a signal transmitting unit, a memory and a micro control unit, and the micro control unit is powered Connected to the memory and the signal transmitting unit, the memory records the reply signal, after the radio frequency tag is activated, the micro control unit sends the reply signal through the signal transmitting unit; b) the radio frequency reader receives the The reply signal sent by the radio frequency tag transmits the reply signal to the smart electronic device; c) the smart electronic device performs analysis and judgment through the application; and d) the smart electronic device provides a display screen, and The result of the analysis judgment is displayed on the display screen. The method of claim 12, wherein before the step a, the method further comprises: a step a1: continuously sending an inquiry signal by the radio frequency reader; wherein in the step a, the radio frequency tag is to receive the inquiry The signal is activated afterwards. The RF rescue method of claim 12, wherein the step a2 includes: a step a2: triggering a button unit on the radio frequency tag; wherein in the step a, the radio frequency tag is triggered after the button unit is triggered Was started. The radio frequency rescue method of claim 12, wherein the step a3 comprises: an electronic signal sent by an external tester; wherein in the step a, the radio frequency tag senses the electronic signal. After being started. The radio frequency rescue method of claim 12, wherein the step a4 further comprises: a step a4: sensing a change of the acceleration value generated on the radio frequency tag by a gravity sensor (G-sensor) on the radio frequency tag In the step a, the radio frequency tag is activated after sensing a certain degree of acceleration value change. The method of claim 12, wherein the smart electronic device analyzes, by the application, the signal strength of the reply signal sent by the radio frequency tag, so as to pass the signal strength of the reply signal. Determine the RF tag The distance from the RF reader. The radio frequency rescue method of claim 17, wherein the radio frequency tag of the at least one target is simultaneously locked by the radio frequency reader of three or more fixed positions, and the reply signal sent by the radio frequency tag is respectively received, In step c, the smart electronic device receives the reply signal transmitted by the three RF readers, and the application calculates the distance between the three RF readers and the target RF tag, and further locates The method calculates the orientation and actual position of the radio frequency tag. The radio frequency rescue method of claim 17, wherein the smart electronic device provides a search page through the application, the search page displays a tag number of the radio frequency tag, a signal strength of the reply signal, and the The distance between the RF tag and the RF reader, as well as the time. The radio frequency rescue method of claim 19, wherein the time displayed on the search page is the time when the RF tag sends the reply signal, the time when the RF reader receives the reply signal, and the smart electronic device receives The time at which the signal is replied, or the time at which the intelligent electronic device completes the analysis and judgment. The radio frequency rescue method of claim 19, wherein the search page further provides a lock field, the lock field locks the radio frequency tag that tracks a target, and displays the strongest signal received by the radio frequency reader, and The current signal received by the RF reader is used by the rescuer to find the orientation and actual position of the RF tag through the comparison between the current signal and the strongest signal. An application program (AP) stored in a smart electronic device, after the smart electronic device is loaded into the application and executed, an RF rescue method can be performed, wherein the smart electronic device has a display The screen, the RF rescue method includes: a) receiving a reply signal transmitted by a radio frequency reader, wherein the reply signal is from a radio frequency tag; b) analyzing the signal strength of the reply signal; c) determining the distance between the radio frequency tag and the radio frequency reader by the signal strength of the reply signal; and d) displaying the result of the analysis and judgment through the display screen .