TWI679855B - Ultrasonic device, smart terminal, ultrasonic safety system and operation method thereof - Google Patents

Abstract

An ultrasonic device includes an ultrasonic module, and the ultrasonic module includes a transmitting end for transmitting ultrasonic waves. The ultrasonic device further includes a connector and a definition module. The connector is used to connect to the interface of a smart terminal so that the ultrasonic device can be connected to the smart terminal. The definition module is used to match the ultrasonic module to The connector receives a signal from the smart terminal through the connector, and the signal activates the transmitting end of the ultrasonic module to transmit ultrasonic waves. The invention also provides a smart terminal, an ultrasonic safety system using the ultrasonic device and the smart terminal, and a working method of the ultrasonic safety system.

Description

Ultrasonic device, smart terminal, ultrasonic safety system and its working party law

The invention relates to an ultrasonic device, a smart terminal, an ultrasonic safety system and a working method thereof.

When a user of a smart terminal walks at night, there may be interference from other animals, and the user's personal and safety may be threatened. At present, ultrasound can help drive away animals around the user, thereby improving the safety factor of the user's environment. In addition, at night when the light is weak, the user's visual range is limited, so that the surrounding environment cannot be better understood, and the safety factor of the environment is also reduced to a certain extent. Therefore, smart terminals need to increase the user's safety factor at night.

In view of the above, it is necessary to provide an ultrasonic device capable of transmitting ultrasonic waves.

An ultrasonic device includes an ultrasonic module, and the ultrasonic module includes a transmitting end for transmitting ultrasonic waves. The ultrasonic device further includes a connector and a definition module. The connector is used to connect to the interface of a smart terminal so that the ultrasonic device can be connected to the smart terminal. The definition module is used to match the ultrasonic module to The connector receives a signal from the smart terminal through the connector, and the signal activates the transmitting end of the ultrasonic module to transmit ultrasonic waves.

It is also necessary to provide an ultrasonic safety system, including ultrasonic devices and wisdom A terminal, the ultrasonic device includes an ultrasonic module for transmitting ultrasonic waves, and the smart terminal includes an interface. The ultrasonic device further includes a connector and a definition module. The connector is used to access the interface of the smart terminal. The definition module is used to match the ultrasonic module to the connector to receive from the smart terminal through the connector. A signal; the smart terminal also includes a processor for activating the ultrasonic device to send and receive ultrasonic waves, the processor transmits a signal to the ultrasonic device through an interface and a connector, and the signal activates the ultrasonic module to emit ultrasonic waves.

It is also necessary to provide a smart terminal, including an interface. The interface is used to connect an ultrasonic device with a connector. The smart terminal further includes a processor for activating the ultrasonic device to transmit ultrasonic waves. The processor triggers sending a signal to the interface and the connector to activate the ultrasonic device. This signal activates the ultrasound device to emit ultrasound.

It is also necessary to provide an ultrasonic safety system working method, which includes: a smart terminal outputs a signal to the ultrasound device to start the ultrasound device to emit ultrasound; the smart terminal sends a detection signal to the ultrasound device; The data is transmitted to the smart terminal; the smart terminal calculates environmental information based on the ultrasonic data.

The ultrasonic safety system connects an ultrasonic device to the interface of a smart terminal, and the ultrasonic device uses a traditional headphone connector, so that the smart terminal transmits ultrasonic waves through an external ultrasonic device to drive surrounding animals and improve the environmental safety factor. purpose. In addition, the smart terminal can also detect the surrounding environment with an external ultrasonic device for users to further understand the surrounding environment.

500, 600‧‧‧ Ultrasonic Safety System

100, 300‧‧‧ Ultrasonic device

10‧‧‧ connector

20, 320, 820‧‧‧ Ultrasonic Transceiver Module

Tx‧‧‧ launcher

Rx‧‧‧Receiver

P‧‧‧Power supply terminal

D‧‧‧data terminal

C‧‧‧Clock terminal

G, G2‧‧‧ ground terminal

M‧‧‧Microphone terminal

R‧‧‧Right channel terminal

L‧‧‧Left channel terminal

M1‧‧‧First terminal

G1‧‧‧Second Terminal

L1‧‧‧Third terminal

R1‧‧‧Fourth terminal

22‧‧‧Switch unit

30, 420‧‧‧definition module

200, 400, 800‧‧‧ Smart Terminal

210, 410‧‧‧ interface

220‧‧‧Controller

230‧‧‧ processor

240‧‧‧Application Module

250‧‧‧Display Module

260‧‧‧Flash Module

340‧‧‧Battery Module

360‧‧‧Switch

FIG. 1 is a schematic diagram of an ultrasonic safety system in a first embodiment of the present invention.

FIG. 2 is a schematic diagram of a module defined in FIG. 1.

FIG. 3 is a flowchart of a working method of an ultrasonic safety system according to a preferred embodiment of the present invention.

FIG. 4 is a flowchart of a sub-step of the working method of the ultrasonic safety system shown in FIG. 3.

FIG. 5 is a schematic diagram of an ultrasonic safety system according to a second embodiment of the present invention.

FIG. 6 is a schematic diagram of a smart terminal according to a third embodiment of the present invention.

Please refer to FIG. 1, an ultrasonic security system 500 according to a preferred embodiment of the present invention. The ultrasonic safety system includes a detachably connected ultrasonic device 100 and a smart terminal 200. The ultrasonic device 100 is used to access the smart terminal 200 to transmit and receive ultrasonic waves. The smart terminal 200 can control the ultrasonic device 100 to send and receive ultrasonic waves. In this embodiment, the smart terminal 200 may be a smart phone, a tablet computer, a personal digital assistant (PDA), or the like.

The smart terminal 200 includes an interface 210 including a microphone terminal Mic (M), a ground terminal GND (G), a right channel terminal R, and a left channel terminal L. The ultrasonic device 100 includes a connector 10, an ultrasonic module 20 and a definition module 30. The connector 10 is configured to be connected to the interface 210 of the smart terminal 200. In this embodiment, the interface 210 may be a headphone jack. The connector 10 includes a first terminal M1, a second terminal G1, a third terminal R1, and a fourth terminal L1 corresponding to the microphone terminal M, the ground terminal G, the right channel terminal R, and the left channel terminal L of the interface 210, respectively. When the terminals are connected to the interface 210 of the smart terminal 200, the first terminal M1 is used for receiving a power signal from the smart terminal 200 and supplying power to the ultrasonic device 100. The second terminal G1 is used to be connected to the smart terminal 200 and grounded. The third terminal R1 is used for transmitting data signals between the ultrasonic module 20 and the smart terminal 200. In this embodiment, the connector 10 is a conventional headphone connector.

Please refer to FIG. 1 and FIG. 2 together, the ultrasonic module 20 is used for transmitting and receiving ultrasonic waves. The ultrasonic module 20 includes a transmitting terminal Tx, a receiving terminal Rx, a switching unit 22, a power supply terminal Power (P), a data terminal Data (D), a clock terminal CLK (C), and a ground terminal GND (G2). The launch Both the terminal Tx and the receiving terminal Rx are connected to the data terminal D, and the data terminal D and the smart terminal 200 realize the interaction of ultrasonic data. The transmitting end Tx is used for transmitting ultrasonic waves. The receiving end Rx is used to receive the returned ultrasonic waves. The transmitting end Tx transmits ultrasonic waves outwards. When the ultrasonic waves encounter obstacles, part of the ultrasonic waves are folded back, and the receiving end Rx receives the folded ultrasonic waves. The power supply terminal P is used to receive a power signal from the smart terminal 200 to power the ultrasonic module 20. This ground terminal G2 is used for grounding. The data terminal D is used for transmitting and receiving control signals or ultrasonic data. The clock terminal C is used to receive a clock signal for operating the ultrasonic module 20 from the smart terminal 200. The switching unit 22 is used to switch the transmission and reception directions of the data terminal D. The switching unit 22 switches the transmission and reception directions of the data terminal Data every a predetermined time interval. For example, in the first time interval, the switching unit 22 controls the data terminal D to transmit ultrasonic data to the smart terminal 200; in the second time interval, the switching unit 22 controls the data terminal D to receive signals from the smart terminal 200.

The definition module 30 is used to match the ultrasonic module 20 to the connector 10. In this embodiment, the definition module 30 matches the power supply terminal P, the data terminal D, the clock terminal C, and the ground terminal G2 of the ultrasonic module 20 to the first terminal M1, the third terminal R1, and the terminal 10 of the connector 10 respectively. The fourth terminal L1 and the second terminal G1 enable the ultrasonic module 20 to transmit signals and data to and from the smart terminal 200 through the terminals of the connector 10.

The smart terminal 200 includes the interface 210, a controller 220, a processor 230, an application module 240, a display module 250, and a flash module 260. The interface 210 is used to connect the connector 10 or a headphone connector (not shown). When the connector 10 is connected to the interface 210, the microphone terminal M, the ground terminal G, the right channel terminal R, and the left channel terminal L are respectively connected to the first terminal M1, the second terminal G1, and the third terminal R1 of the connector 10. And the fourth terminal L1 is electrically connected one to one. The microphone terminal M is used to provide power to the first terminal M1 of the connector 10. This ground terminal G is used to connect the joint 10 to the ground. The right channel terminal R and the left channel terminal L are respectively used to transmit data and signals to the ultrasonic device 100, or receive data and signals from the ultrasonic device 100.

The controller 220 is configured to implement signal and data interaction with the interface 210. The controller 220 is connected to the microphone terminal M, the right channel terminal R, and the left channel terminal L of the interface 210, respectively. The controller 220 outputs a power signal to the microphone terminal M to provide an operating voltage to the ultrasonic device 100.

The processor 230 is connected to the controller 220, the application module 240, the display module 250, and the flash module 260, respectively. The processor 230 is configured to interact with the application module 240 and control the controller 220, the display module 250 and the flash module 260.

The application module 240 provides a graphical user interface (GUI) to the user through the display module 250, and the user can input instructions to control the working mode of the ultrasonic device 100 through the graphical user interface. .

The display module 250 is used for displaying ultrasound information and providing a graphical user interface. In this embodiment, the display module 250 is a touch screen. The flash module 260 is used to emit a flash.

The ultrasonic device 100 is connected to the interface 210 of the smart terminal 200 through the connector 10, and the processor 230 detects the connection of the connector 10 through the interface 210, thereby activating the application module 240 and providing graphics through the display module 250. The user interface is changed for the user to choose whether to activate the ultrasonic device 100. If the user chooses not to activate the ultrasonic device 100, the controller 220 outputs a power signal to the microphone terminal M, and the microphone terminal M cannot obtain working power. The ultrasonic device 100 is in a standby state. At this time, the ultrasonic device 100 can provide an interface 210 to prevent dust And decoration. When the user chooses to activate the ultrasonic device 100 and input a startup instruction through a graphical user interface, the application module 240 transmits the startup instruction to the processor 230, and the processor 230 drives the controller 220 to the microphone of the interface 210. The terminal M outputs the power signal, so that the ultrasonic device 100 receives the power signal from the first terminal M1 of the connector 10 and the microphone terminal M of the interface 210 as a working power through the power supply terminal P, so that the ultrasonic module 20 is activated and works. .

The ultrasonic safety system 500 includes an ultrasonic drive mode and an ultrasonic detection mode. The user can choose the working mode accordingly according to the actual situation.

When the user of the smart terminal 200 encounters animal interference while walking, the user may select an ultrasonic driving mode through a graphical user interface. The application module 240 sends a drive command to the processor 230. The processor 230 triggers the controller 220 to output a power signal to the microphone terminal Mic of the interface 210 to activate the ultrasonic module 20. The processor 230 also triggers the controller 220 to start. The transmitting end Tx of the ultrasonic module 20 transmits ultrasonic waves to drive the animals. In addition, the user can activate the flash mode through the application module 240 at the same time, and the processor 230 triggers the flash module 260 to emit a flash to assist the ultrasound to drive the animal.

When the user of the smart terminal 200 is walking at night or in a place with insufficient light and wants to clearly understand the surrounding environment, the user may select an ultrasonic detection mode through a graphical user interface. The application module 240 transmits a detection instruction to the processor 230. The processor 230 triggers the controller 220 to output a power signal to the microphone terminal Mic of the interface 210 to activate the ultrasonic module 20. The processor 230 triggers the controller 220 to send a detection. The signal goes to the right channel terminal R of the interface 210. The detection signal is transmitted to the ultrasonic module 20 through the third terminal R1 of the connector 10 and the data terminal D of the ultrasonic module 20. The transmitting end Tx and the receiving end Rx of the ultrasonic module 20 start to transmit and receive ultrasonic signals. The detection signal simultaneously drives the switching unit 22 to switch the transmission direction of the data terminal D at a predetermined time interval. The ultrasonic module 20 transmits ultrasonic data to the processor 230 through the data terminal D, the third terminal R1 of the connector 10 and the right channel terminal R of the interface 210. The processor 230 calculates the distance between the ultrasonic device 100 and the obstacle in front according to the time difference between the transmitting end Tx and the receiving end Rx of the ultrasonic module 20 for transmitting and receiving ultrasonic waves. The processor 230 outputs the calculated distance information to the display module 250 for viewing by the user.

It can be understood that the transmitting end Tx can also transmit multiple groups of ultrasonic waves at the same time. When the ultrasonic waves encounter objects with uneven surface contours, the distances between the multiple groups of ultrasonic waves transmitted to the object surface are different, and then the time for the multiple ultrasonic waves to return to the receiving end Rx Not the same. Thus the processor 230 The time when the terminal Rx receives each group of ultrasonic waves is used to calculate the distance between each point of the surface contour of the object and the ultrasonic device 100 to obtain the approximate appearance contour of the object, and output it to the display module 250 for the user to view the three-dimensional graphics of the object. Explain that the user judges the attributes of the object.

It can be understood that when the interface 210 of the smart terminal 200 is connected to an ordinary headset, the interface 210 can be used to transmit ordinary audio signals. This is a conventional technology and will not be described in detail here.

Please refer to FIG. 3, which is a flowchart of a working method of an ultrasonic safety system according to a preferred embodiment of the present invention. The working method of the ultrasonic safety system includes the following steps:

In step S310, the ultrasonic device 100 is connected to the interface 210 of the smart terminal 200 through the connector 10.

In step S320, the application module 240 provides an option of whether to activate the ultrasonic device 100. The user makes a selection through the graphical user interface of the display module 250. When the user chooses not to start, step S330 is performed; when the user chooses to start, step S340 is performed.

In step S330, the ultrasound apparatus 100 stands by.

In step S340, the application module 240 provides whether to activate the ultrasonic drive mode or the ultrasonic detection mode. The user makes a selection through the graphical user interface of the display module 250. When the user selects the ultrasonic drive mode, step S350 is continuously performed; when the user selects to activate the ultrasonic detection mode, step S360 and subsequent steps are performed.

In step S350, the controller 220 starts the ultrasonic device 100 to transmit ultrasonic waves. The controller 220 outputs a power signal to the microphone terminal M of the interface 210, and the power signal is transmitted to the ultrasonic device 100 through the microphone terminal M of the interface 210 and the first terminal M1 of the connector 10 to start the transmitting end Tx of the ultrasonic module 20 Ultrasound.

Step S360 is the same as step S350. The controller 220 activates the ultrasonic device 100 to transmit ultrasonic waves, and details are not described herein.

In step S370, the controller 220 activates the ultrasonic module 20 to receive ultrasonic waves. Controller 220 outputs a detection signal to the ultrasonic module 20 through the interface 210, and the detection signal is transmitted to the ultrasonic module 20 through the right channel terminal R of the interface 210, the third terminal R1 of the connector 10, and the data terminal D of the ultrasonic module 20. To activate the receiving end Rx of the ultrasonic module 20 to receive the returned ultrasonic waves.

In step S380, the processor 230 receives the ultrasonic data generated by the ultrasonic module 20 receiving the returned ultrasonic waves. The switching unit 22 switches the transmission direction of the data terminal D at a predetermined time interval, so that the ultrasonic module 20 transmits the ultrasonic data to the processor 230 through the data terminal D. The ultrasonic data is transmitted to the processor 230 through the data terminal D, the third terminal R1 of the connector 10, and the right channel terminal R of the interface 210.

In step S390, the processor 230 calculates the distance between the ultrasonic device 100 and the object according to the received ultrasonic data and outputs the distance to the display module 250 for the user to browse.

It can be understood that, in other embodiments, the ultrasonic module 20 may only have a transmitting end Tx to transmit ultrasonic waves to drive animals around the user.

Referring to FIG. 4, step S350 may further include:

In step S352, the application module 240 provides a flashing option. When the user chooses not to flash, step S350 is continued; when the user chooses to flash, step S354 is performed.

In step S354, the processor 230 triggers the flash module 260 to flash.

Please refer to FIG. 5. An ultrasound security system 600 according to a second embodiment of the present invention includes an ultrasound device 300 and a smart terminal 400. The ultrasound device 300 and the smart terminal 400 are roughly the same as the ultrasound device 100 and the smart terminal 200 of the first embodiment. It is the same, and the same structure is not repeated here, only the differences are explained. Specifically, the ultrasonic device 300 includes an ultrasonic module 320, a battery module 340, and a switch 360. The battery module 340 is used to power the ultrasonic device 300. The switch 360 is used to activate or deactivate the ultrasonic device 300. Users can use this switch 360 manually controls the activation or shutdown of the ultrasonic device 300. The smart terminal 400 includes an interface 410 and a definition module 420. The definition module 420 is electrically connected to the interface 410 and is used to define the terminals of the interface 410 so that the terminals of the interface 410 match the terminals of the ultrasonic module 320. In the second embodiment, the definition module 420 may define the microphone terminal Mic (M), the ground terminal GND (G), the right channel terminal R, and the left channel terminal L of the interface 410 as an ultrasonic mode. The power supply terminal Power (P), the ground terminal GND (G), the data terminal Data (D), and the clock terminal CLK (C) of the group 320 correspond to transmit relevant signals and data. In the second embodiment, the ultrasonic device 300 can be powered by an independent battery module 340, and the setting of outputting a power signal from the smart terminal 400 to the microphone terminal Mic is omitted. Alternatively, the ultrasonic device 300 preferentially uses an independent battery module 340 for power supply. When the power of the battery module 340 is low, the smart terminal 400 outputs a power signal to the microphone terminal M to supply power to the ultrasonic device 300.

Please refer to FIG. 6, a smart terminal 800 according to a third embodiment of the present invention includes an ultrasonic module 820 and a power management module 840. Compared with the first embodiment, the ultrasonic module 820 is built in the smart terminal 800, which eliminates the need for an external ultrasonic device and is more convenient to use. The ultrasonic module 820 provides power through the power management module 840.

The ultrasonic security system 500 of the present invention is connected to the ultrasonic device 100 through the interface 210 of the smart terminal 200, and the ultrasonic device 100 uses the conventional headphone connector 10, so that the smart terminal 200 transmits ultrasonic waves through the external ultrasonic device 100 to achieve The purpose of driving away surrounding animals and improving the environmental safety factor. In addition, the smart terminal 200 can also detect the surrounding environment through the external ultrasonic device 100 so that the user can further understand the surrounding environment.

In summary, the present invention complies with the elements of an invention patent, and a patent application is filed in accordance with the law. However, the above is only a preferred embodiment of the present invention. For those who are familiar with the skills of the present case, equivalent modifications or changes made according to the spirit of the present invention should be covered by the following patent applications.

Claims (17)

An ultrasonic device includes an ultrasonic module. The ultrasonic module includes a transmitting end for transmitting ultrasonic waves. The improvement is that the ultrasonic device further includes a connector and a definition module. The connector is used to connect to an interface of a smart terminal. So that the ultrasonic device is connected to the smart terminal; the definition module is used to match the ultrasonic module to the connector to receive a signal from the smart terminal through the connector, and the signal activates the transmitting end of the ultrasonic module Transmit ultrasonic waves. The ultrasonic wave module also includes a power supply terminal, a data terminal, a clock terminal and a ground terminal. The connector is a headphone connector. The connector includes a first terminal, a second terminal, a third terminal and a fourth terminal. The defining module The power supply terminal, ground terminal, data terminal, and clock terminal of the ultrasonic module are respectively matched to the first terminal, the second terminal, the third terminal, and the fourth terminal of the connector. The ultrasonic device according to item 1 of the scope of patent application, wherein the signal is a power signal, the first terminal of the connector is used to receive the power signal from a smart terminal to power the ultrasonic device, and the second terminal is used to connect To the ground, the third terminal is used for transmitting control signals or ultrasonic data, and the fourth terminal is used for transmitting clock signals. The ultrasonic device according to item 2 of the scope of patent application, wherein the ultrasonic module further includes a receiving end and a switching unit, the transmitting end is used for transmitting ultrasonic waves, the receiving end is used for receiving returned ultrasonic waves, and the switching unit is used for The transmission and reception directions of the data terminal are switched at a predetermined time interval, so that the data terminal transmits a control signal or ultrasonic data in both directions. The ultrasonic device according to item 1 of the scope of patent application, wherein the ultrasonic device further includes a battery module and a switch, the battery module is used to supply power to the ultrasonic device, and the switch is used to activate or deactivate the ultrasonic device. An ultrasonic safety system includes an ultrasonic device and a smart terminal. The ultrasonic device includes an ultrasonic module for transmitting ultrasonic waves. The intelligent terminal includes an interface. The improvement is that the ultrasonic device further includes a connector and a definition module. The connector is used to access the interface of the smart terminal. The definition module is used to match the ultrasonic module to the connector to receive a signal from the smart terminal through the connector. The smart terminal also includes a processor. The processor is used to start the ultrasonic device to send and receive ultrasonic waves. The processor transmits a signal to the ultrasonic device through the interface and the connector. The signal starts the ultrasonic module to transmit ultrasonic waves. The ultrasonic module further includes a power supply terminal, a data terminal, a clock terminal, and Ground terminal. The connector is a headphone connector. The connector includes a first terminal, a second terminal, a third terminal, and a fourth terminal. The definition module separates the power supply terminal, ground terminal, data terminal, and clock terminal of the ultrasonic module. One corresponding to the first terminal, the second terminal, the third terminal and the fourth terminal of the connector . The ultrasonic safety system according to item 5 of the scope of patent application, wherein the signal is a power signal, the first terminal of the connector is used to receive the power signal from a smart terminal to power the ultrasonic device, and the second terminal is used for Connected to ground, the third terminal is used to transmit control signals or ultrasonic data, and the fourth terminal is used to transmit clock signals. The ultrasonic safety system according to item 6 of the scope of patent application, wherein the ultrasonic module further includes a transmitting end, a receiving end, and a switching unit, the transmitting end is used to transmit ultrasonic waves, and the receiving end is used to receive returned ultrasonic waves; the The switching unit is used to switch the transmission and reception directions of the data terminal at a predetermined time interval, so that the data terminal transmits the control signal and ultrasonic data in both directions. The ultrasonic safety system according to item 7 of the scope of patent application, wherein the smart terminal further includes a controller, which is electrically connected to the microphone terminal, the right channel terminal and the left channel terminal of the interface, respectively. The controller triggers the controller to output a power signal to a microphone terminal of the interface to activate the ultrasonic device. The processor also triggers the controller to output a detection signal to a right channel terminal of the interface to trigger the ultrasonic module to receive ultrasonic waves. The ultrasonic security system according to item 8 of the scope of patent application, wherein the processor is further configured to calculate the distance between the ultrasonic device and the detected object based on the ultrasonic data; the smart terminal further includes an application program module, a display module and a flash Module, the application module is used to select whether to activate the ultrasonic device and receive ultrasonic waves, the display module is used to display the distance information calculated by the processor and provide a graphical user interface for the application module; the flash module The group is used to select whether to emit a flash through the application module. A smart terminal includes an interface. The improvement is that the interface is used to access an ultrasonic device with a connector. The smart terminal also includes a processor. The processor is used to start the ultrasonic device to emit ultrasonic waves. The processor triggers Send a signal to the interface and connector to activate the ultrasonic device. The signal activates the ultrasonic device to emit ultrasonic waves. The signal is a power signal. The interface is a headphone jack and includes a microphone terminal, a ground terminal, a right channel terminal, and a left channel terminal. The microphone terminal of the interface is used to transmit a power signal to power the ultrasonic device, the ground terminal is used to connect to the ground, the right channel terminal is used to transmit a control signal or ultrasonic data, and the left channel terminal is used to transmit a clock signal. The smart terminal as described in item 10 of the scope of patent application, wherein the smart terminal further includes a controller, which is electrically connected to the microphone terminal, the right channel terminal and the left channel terminal of the interface, respectively. The processor triggers the controller to output a power signal to the microphone terminal of the interface to start the ultrasonic device. The processor also triggers the controller to output a detection signal to the right channel terminal of the interface to trigger the ultrasonic device to receive ultrasonic waves, so that the smart terminal can borrow The interface and the connector receive ultrasonic data from the ultrasonic device. The smart terminal according to item 11 of the patent application scope, wherein the processor is further configured to calculate the distance between the ultrasonic device and the detected object based on the ultrasonic data; the smart terminal further includes an application module, a display module and a flash Module, the application module is used to select whether to activate the ultrasonic device to transmit and receive ultrasonic waves, the display module is used to display distance information calculated by the processor and provide a graphical user interface for the application module; The flash module is used to select whether to emit a flash through the application module. An ultrasonic safety system working method includes: an ultrasonic device is connected to an interface of a smart terminal through a connector; the connector is a headphone connector; the connector includes a first terminal, a second terminal, a third terminal, and a fourth terminal; the interface It is a headphone jack and includes a microphone terminal, a ground terminal, a right channel terminal, and a left channel terminal. The microphone terminal, ground terminal, right channel terminal, and left channel terminal of the interface are respectively connected to the first terminal and the second terminal of the connector. The terminal, the third terminal, and the fourth terminal correspond to the electrical connection one by one; the smart terminal outputs a signal to the ultrasonic device to start the ultrasonic device to emit ultrasonic waves. The signal is a power signal. The microphone terminal provides the power to the first terminal of the connector. Signal; the smart terminal sends a detection signal to the ultrasound device, the ultrasound device receives the returned ultrasound and transmits the ultrasound data to the smart terminal; the smart terminal calculates environmental information based on the ultrasound data. The method for operating an ultrasonic safety system according to item 13 of the scope of the patent application, wherein the method for operating an ultrasonic safety system further includes a smart terminal providing an option to activate the ultrasonic device; when the ultrasonic device is not selected, the ultrasonic device is on standby. The method for operating an ultrasonic security system according to item 13 of the scope of the patent application, wherein the method for operating an ultrasonic security system further includes a smart terminal providing an option to detect the environment; when it chooses not to detect the environment, the ultrasonic device keeps transmitting ultrasonic waves. The working method of the ultrasonic safety system according to item 15 of the scope of patent application, wherein when the ultrasonic device receives the detection signal, the connector switches the transmission direction at a predetermined time interval so that the ultrasonic device passes the ultrasonic data through the connector. Send to smart terminal. The working method of the ultrasonic security system according to item 15 of the scope of the patent application, wherein the working method of the ultrasonic security system further includes whether the smart terminal provides a flashing option; when the flash is selected, the smart terminal emits a flash.