TWI490522B - Positioning system and method thereof - Google Patents

Description

Target positioning system and method

The present invention relates to a target positioning system and method, and more particularly to a target positioning system and method for synthesizing position information in a picture.

At present, some mobile phones or cameras on the market can obtain the longitude/latitude position information of the photographing location through its internal GPS unit, and record the location information in the image taken by a camera unit, so that the user can browse in the future. The trajectory of the place where the original photo was nostalgic can be obtained through the electronic map. However, when the GPS unit is not inside the mobile phone or the camera, the longitude/latitude position information of the current photographing location cannot be obtained.

In view of this, it is necessary to provide a target positioning system and method, so that a mobile terminal can achieve target positioning without a GPS unit.

A target positioning system, the system comprising a first mobile terminal and a second mobile terminal, the first mobile terminal comprising a first wireless communication unit, the second mobile terminal comprising a second wireless communication unit, the first mobile terminal and The second mobile terminal communicates with the second wireless communication unit and the second wireless communication unit within a predetermined range, the first mobile terminal further includes an image capturing unit and a processing unit, and the second mobile terminal further includes a a GPS unit and a control unit; the camera unit is configured to capture an image of the target, the GPS unit is configured to acquire current location information of the second mobile terminal, and the processing unit is configured to control the camera unit in response to a user operation Receiving, by the first wireless communication unit, a location requirement signal; the control unit receives the location requirement signal by using the second wireless communication unit, and controls the GPS unit to acquire the current location information of the second mobile terminal, and passes the The second wireless communication unit sends a target location information signal; the processing unit passes the first wireless communication Means for receiving a signal of the target location, the target location information acquired from the location information of the target's signal, the current location of the second mobile terminal written in the imaging unit images picked.

A target positioning method is applied to a target positioning system, the system includes a first mobile terminal and a second mobile terminal, the first mobile terminal includes a first wireless communication unit and a camera unit, and the second The mobile terminal includes a second wireless communication unit and a GPS unit, and the first mobile terminal and the second mobile terminal communicate with each other through the first wireless communication unit and the second wireless communication unit within a predetermined range. An image for ingesting the target, the GPS unit is configured to acquire location information of the second mobile terminal, the method further includes: controlling the camera unit to perform shooting; sending a location requirement signal by using the first wireless communication unit; Receiving, by the second wireless communication unit, the location requirement signal; controlling the GPS unit to acquire current location information of the second mobile terminal; transmitting, by the second wireless communication unit, a current location information signal; receiving by the first wireless communication unit The current location information signal; obtaining the current location information from the current location information, The current location of the imaging unit is written in the captured image.

The processing unit sends a location requirement signal to the second mobile terminal by the first wireless communication unit when the camera unit performs the shooting, and the control unit controls the GPS unit to obtain the current location information of the second mobile terminal, and passes the first The second wireless communication unit sends the location information to the first mobile terminal, and the processing unit writes the location information into the image captured by the shooting unit. Therefore, a mobile terminal can achieve target positioning without a GPS unit.

Please refer to FIG. 1 , which is a block diagram of a target positioning system 100 according to an embodiment of the present invention. The target positioning system 100 is hereinafter referred to as the system 100 . The system 100 includes a first mobile terminal 10 and a second mobile terminal 20, which is a mobile phone, a camera, a video camera, and the like having an imaging function but not having a positioning function. The second mobile terminal 20 is a terminal such as a mobile phone, a camera, a video camera or the like having a positioning function.

The first mobile terminal 10 includes a first wireless communication unit 11, an imaging unit 12, a storage unit 13, and a processing unit 14. The second mobile terminal 20 includes a second wireless communication unit 21, a GPS unit 22, and a control unit 23.

The first mobile terminal 10 and the second mobile terminal 20 communicate with each other through the first wireless communication unit 11 and the second wireless communication unit 21. The first wireless communication unit 11 and the second wireless communication unit 21 can be a WI-FI module or a Bluetooth module, and the first mobile terminal 10 and the second mobile terminal 20 can communicate within a predetermined range (for example, 10 m).

The imaging unit 12 is configured to capture an image of the target. The format of the image is JPEG format, RAW format, etc., and in the present embodiment, the description will be made in the JPEG format.

This storage unit 13 is for storing images.

The processing unit 14 is configured to control the image of the target image captured by the camera unit 12 in response to the user's operation, and send a location demand signal through the first wireless communication unit 11.

The GPS unit 22 is configured to acquire current location information. In this embodiment, the location information is a longitude/latitude location information.

The control unit 23 receives the location requirement signal through the second wireless communication unit 21, and controls the GPS unit 22 to obtain the current location information of the second wireless communication unit 21 according to the location requirement signal, and obtains the current location information. The current location information signal is then transmitted through the second wireless communication unit 21. Since the second mobile terminal 20 and the first mobile terminal 10 are within the predetermined range, the location information acquired by the GPS unit 22 can be regarded as the location information of the first mobile terminal 10, that is, the location information of the shooting location.

The processing unit 14 receives the location information signal of the shooting location through the first wireless communication unit 11, and obtains the location information of the shooting location from the location information signal of the shooting location, and the location information of the shooting location is standard. The Exif (Exchangeable Image File) format is written to the JPEG image taken by the camera unit 12.

The processing unit 14 is further configured to store the image of the write location information in the storage unit 13.

In this embodiment, the processing unit 14 is further configured to read the longitude/latitude position information of the shooting location from the image when the image of the writing location information is decoded for browsing, thereby facilitating the user. In the future, the location where the image was originally taken is checked through an electronic map.

Please refer to FIG. 2 , which is a flowchart of a target positioning method according to an embodiment of the present invention.

In step S201, the processing unit 14 controls the camera unit 12 to take an image of the target in response to the user's operation.

In step S202, the processing unit 14 simultaneously transmits a location demand signal through the first wireless communication unit 11 within a predetermined range.

In step S203, the control unit 23 receives the location demand signal through the second wireless communication unit 21.

In step S204, the control unit 23 controls the GPS unit 22 to acquire current location information. Since the second mobile terminal 20 and the first mobile terminal 10 are within the predetermined range, the location information acquired by the GPS unit 22 can be regarded as the location information of the first mobile terminal 10, that is, the location information of the shooting location.

In step S205, the control unit 23 transmits a signal of the location information of the shooting location through the second wireless communication unit 21.

In step S206, the processing unit 14 receives a signal of the location information of the shooting location through the first wireless communication unit 11.

In step S207, the processing unit 14 acquires the location information of the shooting location from the location information signal of the shooting location, and writes the location information of the shooting location into the image in a standard Exif format.

In step S208, the processing unit 14 stores the image in which the location information is written into the storage unit 13.

In step S209, when the processing unit 14 decodes the picture for browsing, the location information of the shooting location is read from the image in which the location information is written for the user to view on the electronic map.

It is to be understood by those skilled in the art that the above embodiments are only intended to illustrate the invention, and are not intended to limit the invention, as long as it is within the spirit of the invention Changes and modifications are intended to fall within the scope of the invention.

100. . . system

10. . . First mobile terminal

20. . . Second mobile terminal

11. . . First wireless communication unit

12. . . Camera unit

13. . . Storage unit

14. . . Processing unit

twenty one. . . Second wireless communication unit

twenty two. . . GPS unit

twenty three. . . control unit

1 is a block schematic diagram of a target positioning system in accordance with an embodiment of the present invention.

2 is a flow chart of a target positioning method according to an embodiment of the present invention.

100. . . system

10. . . First mobile terminal

20. . . Second mobile terminal

11. . . First wireless communication unit

12. . . Camera unit

13. . . Storage unit

14. . . Processing unit

twenty one. . . Second wireless communication unit

twenty two. . . GPS unit

twenty three. . . control unit

Claims (9)

A target positioning system, the system comprising a first mobile terminal and a second mobile terminal, the first mobile terminal comprising a first wireless communication unit, the second mobile terminal comprising a second wireless communication unit, the first mobile terminal and The second mobile terminal communicates with the second wireless communication unit and the second wireless communication unit within a predetermined range, and the improvement is that
The first mobile terminal further includes an image capturing unit and a processing unit, the second mobile terminal further includes a GPS unit and a control unit;
The camera unit is configured to capture an image of the target, the GPS unit is configured to acquire current location information of the second mobile terminal, and the processing unit is configured to pass the first when the camera unit performs shooting according to an operation of the user. The wireless communication unit transmits a location demand signal;
The control unit receives the location requirement signal by the second wireless communication unit, and controls the GPS unit to acquire the current location information of the second mobile terminal, and sends a target location information signal by using the second wireless communication unit;
Receiving, by the first wireless communication unit, the location information signal of the target, acquiring the location information of the target from the location information signal of the target, and writing the current location information of the second mobile terminal to the camera unit Ingested in the image. The target location system of claim 1, wherein the second mobile terminal and the first mobile terminal are within the predetermined range, and the location information acquired by the GPS unit can be regarded as the location of the first mobile terminal. News. The target positioning system of claim 1, wherein the first mobile terminal further comprises a storage unit, wherein the processing unit is further configured to store the image in which the location information is written into the storage unit. The target positioning system of claim 1, wherein the processing unit is further configured to read the location information of the target from the image data when the image is decoded and browsed. The target positioning system of claim 1, wherein the image captured by the camera unit is in a JPEG format, and the processing unit writes the current location information into the camera unit in a standard Exif format. In JPEG format images. The target positioning system of claim 1, wherein the first communication unit and the second communication unit are WI-FI modules or Bluetooth modules. The target positioning system of claim 1, wherein the location information is longitude/latitude location information. A target positioning method is applied to a target positioning system, the system includes a first mobile terminal and a second mobile terminal, the first mobile terminal includes a first wireless communication unit and a camera unit, and the second The mobile terminal includes a second wireless communication unit and a GPS unit, and the first mobile terminal and the second mobile terminal communicate with each other through the first wireless communication unit and the second wireless communication unit within a predetermined range. An image for ingesting the target, the GPS unit is configured to acquire location information of the second mobile terminal, and the improvement is that the method further includes:
Controlling the camera unit to perform shooting;
Sending a location requirement signal by the first wireless communication unit;
Receiving the location requirement signal by the second wireless communication unit;
Controlling the GPS unit to obtain current location information of the second mobile terminal;
Transmitting, by the second wireless communication unit, a current location information signal;
Receiving the current location information signal by the first wireless communication unit;
The current location information is obtained from the current location information, and the current location information is written into the image captured by the camera unit. The method as claimed in claim 8, wherein the system further comprises a storage unit, wherein the method further comprises:
The image in which the location information is written is stored in the storage unit.