JP2017129590A - Information communication apparatus, information communication system, information communication method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an influence on other processing by suppressing power consumption required for positioning processing.SOLUTION: An imaging apparatus 2 comprises: a first positioning unit 207b which positions a current position on the basis of a signal transmitted from a GPS satellite S; a second positioning unit 207c which positions the current position by acquiring the signal transmitted from the GPS satellite and received by a portable terminal 1 via a communication control unit 208 from the portable terminal; a connection determination unit 209 which determines whether the imaging apparatus is connected by the communication control unit so that it can communicate information with the portable terminal 1; and a positioning control unit 210 which performs control to execute positioning of the current position by the second positioning unit when the connection determination unit determines that the imaging apparatus is connected to the portable terminal, and performs control to execute positioning of the current position by the first positioning unit when the connection determination unit determines that the imaging apparatus is not connected to the portable terminal.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an information communication device, an information communication system, an information communication method, and a program.

  Conventionally, a technique for measuring a position using a GPS (Global Positioning System) is known. For example, there is an imaging apparatus that measures an imaging position based on a signal transmitted from a GPS satellite and records position information of the imaging position as attribute information of image data (see, for example, Patent Document 1).

JP 2011-29852 A

  However, since positioning processing performed by receiving a signal transmitted from a GPS satellite consumes a large amount of power, if the power supply capacity of the apparatus main body is limited, execution of other processes by the imaging apparatus is affected. For example, in the case of an imaging device equipped with a battery, the number of images that can be captured may be reduced.

  Therefore, an object of the present invention is to provide an information communication device, an information communication system, an information communication method, and a program that can reduce power consumption for positioning processing and reduce the influence on other processing. .

In order to solve the above problems, an information communication apparatus according to the present invention provides:
Communication means for communicating with an external device connected via a communication line, first positioning means for positioning a current position based on a signal transmitted from a positioning satellite, and transmitted from the positioning satellite and received by the external device A second positioning unit that measures the current position by acquiring the received signal from the external device via the communication unit, and determining whether the communication unit is connected to the external device so as to enable information communication When the determination means determines that the external device is connected to the external device, the second positioning device performs positioning of the current position while the determination device is connected to the external device. And control means for controlling to execute positioning of the current position by the first positioning means.

Moreover, the information communication system according to the present invention includes:
An information communication system in which a plurality of information communication devices are connected via a communication line, each of the information communication devices includes first positioning means for positioning a current position based on a signal transmitted from a positioning satellite; A second positioning means for positioning a current position by acquiring a signal transmitted from the positioning satellite and received by another information communication device from the other information communication device via the communication line; and A determination unit that determines whether or not the information communication apparatus is connected to the information communication apparatus via the communication line; and the determination unit determines that the information communication apparatus is connected to the other information communication apparatus when the determination unit is connected. While the positioning of the current position by the two positioning means is executed, if the determination means determines that the current position is not connected to the other information device, the positioning of the current position by the first positioning means is executed. Is characterized by comprising a control means for controlling, the.

Moreover, the information communication method according to the present invention includes:
An information communication method using an information communication device including a communication unit that communicates with an external device connected via a communication line, the first positioning processing for positioning a current position based on a signal transmitted from a positioning satellite A second positioning process for positioning the current position by acquiring a signal transmitted from the positioning satellite and received by the external device from the external device via the communication means; and the external device by the communication means A determination process for determining whether or not it is connected so as to be able to communicate with the information, and if it is determined by the determination process that it is connected to the external device, the positioning of the current position is executed by the second positioning process. A control process for controlling to execute positioning of the current position by the first positioning process when it is determined by the determination process that it is not connected to the external device. It is characterized in.

The program according to the present invention is
A computer of an information communication device having a communication means for communicating with an external device connected via a communication line is transmitted from the positioning satellite, first positioning means for positioning the current position based on a signal transmitted from the positioning satellite. A second positioning means for measuring the current position by acquiring the signal received by the external device from the external device via the communication means, and the communication means is connected to the external device so that information communication is possible. Determining means for determining whether or not it is connected to the external device by the determining means, while positioning of the current position by the second positioning means is performed, while the external device is determined by the determining means If it is determined that it is not connected to the control unit, the first positioning unit functions as a control unit that controls to execute positioning of the current position. To have.

  ADVANTAGE OF THE INVENTION According to this invention, the power consumption concerning a positioning process can be suppressed and the influence with respect to another process can be reduced.

It is a figure which shows schematic structure of the information communication system of one Embodiment to which this invention is applied. It is a block diagram which shows schematic structure of the portable terminal which comprises the information communication system of FIG. It is a block diagram which shows schematic structure of the imaging device which comprises the information communication system of FIG. It is a flowchart which shows an example of the operation | movement which concerns on the positioning process by the information communication system of FIG. It is a figure for demonstrating the positioning process of FIG.

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.

FIG. 1 is a diagram showing a schematic configuration of an information communication system 100 according to an embodiment to which the present invention is applied.
As shown in FIG. 1, the information communication system 100 of this embodiment includes a mobile terminal (external device; see FIG. 2) 1 and an imaging device (information communication device; see FIG. 3) 2. The imaging apparatus 2 is connected to be capable of information communication via a wireless communication line (for example, a wireless PAN (Personal Area Network) such as Bluetooth (registered trademark)).
Here, for example, the portable terminal 1 and the imaging device 2 are owned and used by the same user, but may be owned and used by different users.

First, the mobile terminal 1 will be described with reference to FIG.
FIG. 2 is a block diagram showing a schematic configuration of the mobile terminal 1 constituting the information communication system 100.
As shown in FIG. 2, the mobile terminal 1 includes a central control unit 101, a memory 102, an imaging unit 103, an image data generation unit 104, a display unit 105, a display control unit 106, and a transmission / reception unit 107. , A first communication control unit 108, a GPS processing unit 109, a second communication control unit 110, an operation input unit 111, a power supply unit 112, and the like.
In addition, the central control unit 101, the memory 102, the imaging unit 103, the image data generation unit 104, the display control unit 106, the transmission / reception unit 107, the first communication control unit 108, the GPS processing unit 109, the second communication control unit 110, and a power source The unit 112 is connected via the bus line 113.

  The mobile terminal 1 includes, for example, mobile stations used in mobile communication networks such as mobile phones and PHS (Personal Handy-phone System), PDAs (Personal Data Assistants), and the like.

  The central control unit 101 controls each unit of the mobile terminal 1. Specifically, the central control unit 101 includes a CPU (Central Processing Unit; not shown) that controls each part of the mobile terminal 1 and performs various control operations according to various processing programs (not shown) for the mobile terminal 1. Do.

  The memory 102 is configured by, for example, a DRAM (Dynamic Random Access Memory) or the like. The memory 102 stores a buffer memory that temporarily stores data processed by the central control unit 101, a working memory such as the central control unit 101, and various programs and data related to the functions of the mobile terminal 1. A program memory (not shown).

  The imaging unit 103 includes a lens unit 103a, an electronic imaging unit 103b, and an imaging control unit 103c.

The lens unit 103a includes a plurality of lenses such as a zoom lens and a focus lens, for example.
The electronic imaging unit 103b is composed of, for example, an image sensor such as a charge coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS), and converts an optical image that has passed through various lenses of the lens unit 103a into a two-dimensional image signal. To do.
Although illustration is omitted, the imaging unit 103 may include an aperture that adjusts the amount of light passing through the lens unit 103a.

Although not shown, the imaging control unit 103c includes a timing generator, a driver, and the like. Then, the imaging control unit 103c scans and drives the electronic imaging unit 103b with a timing generator and a driver, converts the optical image into a two-dimensional image signal with the electronic imaging unit 103b every predetermined period, and the electronic imaging unit 103b. The frame image is read from the imaging area for each screen and is output to the image data generation unit 104.
The imaging control unit 103c performs adjustment control of imaging conditions of the subject such as AF (automatic focusing process), AE (automatic exposure process), AWB (automatic white balance), and the like.

  The image data generation unit 104 appropriately adjusts the gain for each RGB color component with respect to the analog value signal of the frame image transferred from the electronic imaging unit 103b, and then performs sample holding by a sample hold circuit (not shown). The digital signal is converted into digital data by a / D converter (not shown), color processing including pixel interpolation processing and γ correction processing is performed by a color process circuit (not shown), and then a digital luminance signal Y and color difference signal Cb , Cr (YUV data).

  Then, the image data generation unit 104 sequentially outputs the generated YUV data of each frame image to the memory 102 and stores it in the memory 102.

  For example, the display unit 105 includes a liquid crystal display panel, and displays an image (for example, a live view image) captured by the imaging unit 103 based on a video signal from the display control unit 106 on a display screen.

The display control unit 106 performs control to read display image data temporarily stored in the memory 102 and display the data on the display unit 105.
Specifically, the display control unit 106 includes a video random access memory (VRAM), a VRAM controller, a digital video encoder, and the like. The digital video encoder reads the luminance signal Y and the color difference signals Cb and Cr read from the memory 102 and stored in the VRAM (not shown) under the control of the central control unit 101 via the VRAM controller. Are read out at a predetermined playback frame rate (for example, 30 fps), and a video signal is generated based on these data and output to the display unit 105.
For example, the display control unit 106 causes the display unit 105 to perform live view display while sequentially updating a plurality of frame images captured by the imaging unit 103 and generated by the image data generation unit 104 at a predetermined display frame rate.

The transmission / reception unit 107 performs a call with an external user of an external device connected via the communication network N.
Specifically, the transmission / reception unit 107 includes a microphone 107a, a speaker 107b, a data conversion unit 107c, and the like. The transmission / reception unit 107 performs A / D conversion processing on the user's transmission voice input from the microphone 107a by the data conversion unit 107c and outputs the transmission voice data to the central control unit 101. Under the control, voice data such as received voice data outputted and inputted from the first communication control unit 108 is D / A converted by the data conversion unit 107c and outputted from the speaker 107b.

The first communication control unit 108 transmits and receives data via the communication network N and the communication antenna 108a.
That is, the communication antenna 108a is a predetermined communication method (for example, W-CDMA (Wideband Code Division Multiple Access) method, GSM (registered trademark)) used by the mobile terminal 1 for communication with a radio base station (not shown). ) (Global System for Mobile Communications; registered trademark) system, etc.). The first communication control unit 108 transmits / receives data to / from the radio base station via the communication antenna 108a using a communication channel set in the communication method according to a communication protocol corresponding to a predetermined communication method. That is, the first communication control unit 108 transmits / receives voice during a call with an external user of the external device to the external device of the communication partner, based on the instruction signal output from the central control unit 101 and input. Or send and receive e-mail data.
Note that the configuration of the first communication control unit 108 is an example and is not limited to this, and can be arbitrarily changed as appropriate. For example, although not illustrated, a wireless LAN module is mounted and an access point (Access The communication network N may be accessible via the (Point).

The communication network N is, for example, a communication network that connects the mobile terminal 1 to an external device via a wireless base station, a gateway server (not shown), or the like.
The communication network N is a communication network constructed using, for example, a dedicated line or an existing general public line, and various line forms such as a LAN (Local Area Network) and a WAN (Wide Area Network) are applied. Is possible. The communication network N includes, for example, various communication network networks such as a telephone line network, ISDN line network, dedicated line, mobile communication network, communication satellite line, CATV line network, IP network, VoIP (Voice over Internet Protocol). ) Gateways, Internet service providers, etc. are included.

The GPS processing unit 109 receives a signal transmitted from the GPS satellite S, and measures the current position where the terminal body exists.
Specifically, the GPS processing unit 109, for example, GPS signals (for example, almanac) transmitted from a plurality of GPS satellites (positioning satellites; only one is shown in FIG. 1) S launched in low earth orbit. (Schematic trajectory information) and ephemeris (detailed trajectory information) are received by the receiving antenna 109a at a predetermined timing. In addition, the GPS processing unit 109 performs GPS signal demodulation processing received via the reception antenna 109a to generate GPS information. The generated GPS information may be output to the memory 102 and temporarily held in the memory 102.

Then, the positioning unit 109b of the GPS processing unit 109 performs a predetermined positioning calculation based on the generated GPS information, thereby positioning the absolute three-dimensional current position (latitude, longitude, altitude) of the terminal body. Then, position information (for example, latitude, longitude, altitude coordinate information) related to the position is acquired.
Note that the position information of the current position of the terminal main body acquired by the positioning unit 109b may be output to the memory 102 and temporarily held in the memory 102.

The second communication control unit 110 communicates with the imaging device 2 connected via a predetermined wireless communication line.
That is, for example, the second communication control unit 110 communicates with the imaging device 2 via the wireless PAN realized by a short-range wireless communication standard in which a wirelessly communicable distance such as Bluetooth (registered trademark) is limited to a predetermined distance. Connecting.
Specifically, the second communication control unit 110 includes, for example, a control module for performing Bluetooth (registered trademark) communication with the imaging device 2 via the communication antenna 110a. And the 2nd communication control part 110 exchanges mutual device information and the data of an authentication key with a communicating party by a radio signal by performing the communication setting process called pairing previously, for example. Thereby, thereafter, the communication setting process is automatically or semi-automatically connected to or disconnected from the communication partner without performing the communication setting process every time. For example, the communication connection is canceled when the mobile terminal 1 and the imaging device 2 are separated from a range where radio waves do not reach, while the communication connection is automatically established when the mobile terminal 1 approaches the range where radio waves reach. Alternatively, the communication connection or release is semi-automatically performed by a connection or release operation.

  The second communication control unit 110 acquires GPS information from the memory 102 and transmits the GPS information to the imaging device 2 via the wireless PAN. That is, when the GPS information transmission instruction transmitted from the imaging device 2 is received, the second communication control unit 110 acquires the GPS information temporarily stored in the memory 102 and wirelessly transmits the GPS information. Sequentially transmitted to the imaging device 2 via the PAN.

The operation input unit 111 is for inputting various instructions to the terminal body.
Specifically, the operation input unit 111 includes a power button for turning on / off the power of the terminal body, a shutter button for instructing photographing of a subject, up / down / left / right cursor buttons and a decision button for selecting instructions such as a mode and a function. And various buttons (not shown) such as communication-related buttons related to execution instructions such as incoming and outgoing calls and transmission / reception of e-mails, and numeric buttons and symbol buttons related to text input instructions.
When various buttons are operated by the user, the operation input unit 111 outputs an operation instruction corresponding to the operated button to the central control unit 101. The central control unit 101 causes each unit to execute a predetermined operation (for example, imaging of a subject, incoming / outgoing calls, transmission / reception of an e-mail) according to an operation instruction output from the operation input unit 111 and input.

  Note that the operation input unit 111 may include a touch panel provided integrally with the display unit 105. Based on a predetermined operation of the touch panel by the user, an operation instruction corresponding to the predetermined operation is given to the central control unit. 101 may be output.

The power supply unit 112 supplies power to each unit constituting the terminal body.
That is, the power supply unit 112 includes, for example, various types of storage batteries (for example, lithium ion batteries, nickel / hydrogen rechargeable batteries, and the like). Therefore, the power supply capacity that can be supplied from the power supply unit 112 is limited to a predetermined amount.
Note that the power supply unit 112 may be configured to be supplied with AC power from the outside.

Next, the imaging device 2 will be described with reference to FIG.
FIG. 3 is a block diagram showing a schematic configuration of the imaging device 2 constituting the information communication system 100.
As illustrated in FIG. 3, the imaging device 2 includes a central control unit 201, a memory 202, an imaging unit 203, an image data generation unit 204, a display unit 205, a display control unit 206, and a GPS processing unit 207. A communication control unit 208, a connection determination unit 209, a positioning control unit 210, an operation input unit 211, a power supply unit 212, and the like.
The central control unit 201, the memory 202, the imaging unit 203, the image data generation unit 204, the display control unit 206, the GPS processing unit 207, the communication control unit 208, the connection determination unit 209, the positioning control unit 210, and the power supply unit 212 are They are connected via a bus line 213.

  The central control unit 201 controls each unit of the imaging device 2. Specifically, the central control unit 201 includes a CPU (not shown) that controls each unit of the imaging device 2 and performs various control operations according to various processing programs (not shown) for the imaging device 2.

  The memory 202 is configured by, for example, a DRAM or the like. The memory 202 stores a buffer memory that temporarily stores data processed by the central control unit 201, a working memory such as the central control unit 201, and various programs and data related to the functions of the imaging device 2. A program memory (not shown).

The imaging unit 203 includes a lens unit 203a, an electronic imaging unit 203b, and an imaging control unit 203c, in substantially the same manner as the imaging unit 103 provided in the mobile terminal 1 described above.
Note that the configuration and function of the imaging unit 203 are substantially the same as those of the imaging unit 103 of the mobile terminal 1, and detailed description thereof is omitted.

  The configuration and functions of the image data generation unit 204, the display unit 205, and the display control unit 206 are substantially the same as those of the image data generation unit 104, the display unit 105, and the display control unit 106 provided in the mobile terminal 1 described above. Description is omitted.

The GPS processing unit 207 receives a signal transmitted from the GPS satellite S in a manner similar to the GPS processing unit 109 provided in the mobile terminal 1 described above, and measures the current position where the apparatus main body exists.
Specifically, the GPS processing unit 207 receives, for example, GPS signals transmitted from a plurality of GPS satellites S,. In addition, the GPS processing unit 207 performs demodulation processing of a GPS signal received via the receiving antenna 207a to generate GPS information. The generated GPS information may be output to the memory 202 and temporarily held in the memory 202.

Then, the first positioning unit (first positioning means) 207b of the GPS processing unit 207 performs a predetermined positioning calculation based on the generated GPS information, so that the absolute three-dimensional current position ( Position information (for example, latitude, longitude, altitude coordinate information) is acquired by measuring the latitude, longitude, and altitude. Specifically, in a state where the imaging device 2 and the mobile terminal 1 are not connected so as to be capable of information communication via the wireless PAN, the first positioning unit 207b performs GPS information under the control of the positioning control unit 210. The position information of the current position where the apparatus main body exists is generated based on the above.
Before starting the positioning of the current position, the first positioning unit 207b acquires the GPS information (for example, the previous positioning) acquired from the mobile terminal 1 via the communication control unit 208 and temporarily held in the memory 202. The relative position of the satellite at the position, etc.) may be acquired and the current position may be measured using the GPS information.
Note that the position information of the current position of the apparatus main body acquired by the first positioning unit 207b may be output to the memory 202 and temporarily held in the memory 202.

Based on the GPS information acquired by the communication control unit 208, the second positioning unit 207c of the GPS processing unit 207 measures the current position where the device main body exists. In other words, the second positioning unit (second positioning means) 207c acquires the signal transmitted from the GPS satellite S and received by the portable terminal 1 from the portable terminal 1 via the communication control unit 208, thereby obtaining the current position. Measure.
Specifically, the second positioning unit 207c acquires the GPS information acquired by the communication control unit 208 and temporarily stored in the memory 102 under the control of the positioning control unit 210, that is, the GPS processing of the mobile terminal 1. The GPS information generated by the unit 109 is acquired, and a predetermined positioning calculation is performed based on the GPS information, thereby positioning the absolute three-dimensional current position (latitude, longitude, altitude) of the device body. Position information related to the position (for example, latitude, longitude, altitude coordinate information) is acquired.

The communication control unit 208 communicates with the mobile terminal 1 connected via a predetermined wireless communication line.
That is, the communication control unit 208 includes, for example, a communication antenna 208a, via a wireless PAN realized by a short-range wireless communication standard in which a wirelessly communicable distance such as Bluetooth (registered trademark) is limited to a predetermined distance. Connect to the mobile terminal 1.
Note that the configuration and functions of the communication control unit 208 are substantially the same as those of the second communication control unit 110 provided in the mobile terminal 1 described above, and a detailed description thereof will be omitted.

  Further, the communication control unit 208 acquires a signal transmitted from the GPS satellite S and received by the portable terminal (external device) 1 from the portable terminal 1 via a wireless PAN (predetermined communication line). That is, the communication control unit 208 receives GPS information sequentially transmitted from the mobile terminal 1 via the wireless PAN in accordance with a GPS information transmission instruction. The received GPS information is output to the memory 202, and the memory (holding means) 202 sequentially holds the GPS information acquired by the communication control unit 208.

The connection determination unit 209 determines whether or not the mobile terminal 1 is connected so as to be capable of information communication.
That is, the connection determination unit (determination unit) 209 determines whether the communication control unit 208 is connected to the portable terminal 1 (external device) via the wireless PAN so that information communication is possible. Specifically, for example, when imaging is instructed based on a predetermined operation of the shutter button of the operation input unit (instruction unit) 211 by the user, the connection determination unit 209 is wirelessly connected to the mobile terminal 1 by the communication control unit 208. It is determined whether or not the information communication is connected via the PAN. Then, the connection determination unit 209 outputs the determination result to the positioning control unit 210.
Note that the determination process by the connection determination unit 209 may be performed, for example, at a positioning timing of the current position by the GPS processing unit 109 or at predetermined time intervals.

The positioning control unit 210 controls the positioning process of the current position.
That is, when the connection control unit (control means) 210 determines that the connection determination unit 209 is connected to the portable terminal 1, the position determination unit 209 performs positioning of the current position by the second positioning unit 207c, while the connection determination unit 210 If it is determined by 209 that the mobile terminal 1 is not connected, control is performed to execute positioning of the current position by the first positioning unit 207b.
Specifically, when it is determined by the connection determination unit 209 that the mobile terminal 1 is connected so as to be capable of information communication via the wireless PAN, the positioning control unit 210 generates the GPS information generated by the mobile terminal 1. Is sent to the communication control unit 208. Thereby, the positioning control unit 210 causes the communication control unit 208 to acquire the GPS information generated by the mobile terminal 1 via the wireless PAN. At this time, the positioning control unit 210 outputs a signal for instructing the GPS processing unit 207 to stop applying the application from the power supply unit 212 to the power supply unit 212, and stops the execution of the positioning process of the current position by the first positioning unit 207b. A control instruction may be output to the GPS processing unit 207.
On the other hand, when the connection determination unit 209 determines that the mobile terminal 1 is not connected to be communicable via the wireless PAN, the positioning control unit 210 applies the application from the power supply unit 212 to the GPS processing unit 207. A signal to be instructed is output to the power supply unit 212, and a control instruction to start execution of the positioning process of the current position by the first positioning unit 207b is output to the GPS processing unit 207.

The operation input unit 211 is for inputting various instructions to the apparatus main body.
Specifically, the operation input unit 211 includes, for example, a power button for turning on / off the power of the apparatus main body, a shutter button for instructing imaging of a subject, a selection determination button for instructing selection of an imaging mode, a function, etc., zoom A zoom button (both not shown) and the like related to a quantity adjustment instruction are provided. When various buttons are operated by the user, the operation input unit 211 outputs an operation instruction corresponding to the operated button to the central control unit 201. The central control unit 201 causes each unit to execute a predetermined operation (for example, imaging of a subject) in accordance with an operation instruction output from the operation input unit 211 and input.

The power supply unit 212 supplies power to each unit constituting the apparatus main body.
That is, the power supply unit 212 includes, for example, various types of storage batteries (for example, lithium ion batteries, nickel / hydrogen rechargeable batteries, and the like). Therefore, the power supply capacity that can be supplied from the power supply unit 212 is limited to a predetermined amount.

<Positioning process>
Hereinafter, the positioning process will be described in detail with reference to FIG.
FIG. 4 is a flowchart illustrating an example of an operation related to the positioning process.
The positioning process is a process that is sequentially performed at a predetermined timing. However, in the following description, the mobile terminal 1 sequentially performs positioning of the current position at predetermined time intervals, and the imaging device 2 is operated by a user, for example. When imaging is instructed based on a predetermined operation of the input unit 211, the current position is measured.

As shown in FIG. 4, in the mobile terminal 1, the GPS processing unit 109 receives a signal transmitted from the GPS satellite S via the reception antenna 109a, performs a demodulation process of the GPS signal, and obtains GPS information. Sequentially generated (step S1). And the positioning part 109b measures the present position (latitude, longitude, altitude) of the said terminal body by performing a predetermined positioning calculation based on the produced | generated GPS information (step S2).
The generated GPS information is output to the memory 102 and temporarily stored in the memory 102.

In the imaging apparatus 2, when imaging is instructed based on a predetermined operation of the shutter button of the operation input unit 211 by the user, the connection determination unit 209 is connected to the mobile terminal 1 and the wireless PAN by the communication control unit 208. It is determined whether or not the information communication is possible (step S3).
Here, if it is determined that the mobile terminal 1 is connected to be communicable via the wireless PAN (step S3; YES), the positioning control unit 210 performs positioning processing of the current position by the first positioning unit 207b. A control instruction for stopping execution is output to the GPS processing unit 207 (step S4). Thereby, the positioning of the current position by the first positioning unit 207b of the GPS processing unit 207 is stopped.
Subsequently, the positioning control unit 210 outputs a transmission instruction of the GPS information generated by the mobile terminal 1 to the apparatus main body to the communication control unit 208, and the communication control unit 208 transmits the transmission instruction of the GPS information to the wireless PAN. Is transmitted to the portable terminal 1 via (step S5).

  In the mobile terminal 1, when the second communication control unit 110 receives a GPS information transmission instruction transmitted from the imaging device 2, the second communication control unit 110 stores the GPS information held in the memory 102. And the GPS information is transmitted to the imaging device 2 via the wireless PAN (step S6).

In the imaging apparatus 2, when the GPS information transmitted from the mobile terminal 1 is received by the communication control unit 208, the communication control unit 208 outputs the GPS information to the memory 202, and the memory 202 stores the GPS information. Information is temporarily held (step S7). Subsequently, the second positioning unit 207c of the GPS processing unit 207 acquires the GPS information held in the memory 202, and performs a predetermined positioning calculation based on the GPS information, so that the current position ( Latitude, longitude, altitude) is measured (step S8).
Note that the position information of the current position measured by the second positioning unit 207 c may be output to the memory 202 and temporarily held in the memory 202.

On the other hand, when it is determined in step S3 that the mobile terminal 1 is not connected to be capable of information communication via the wireless PAN (step S3; NO), the GPS processing unit 207 transmits a signal transmitted from the GPS satellite S. Is received via the receiving antenna 207a, and the GPS signal is demodulated to sequentially generate GPS information (step S9). And the 1st positioning part 207b measures the present position (latitude, longitude, altitude) of the said apparatus main body by performing predetermined positioning calculation based on the produced | generated GPS information (step S10).
The position information of the current position measured by the first positioning unit 207b may be output to the memory 202 and temporarily held in the memory 202.

  After the positioning process is completed, the recording control unit (not shown) captures the image data of the captured image encoded by the image data generation unit 204 in a predetermined compression format (for example, JPEG format), the first positioning unit 207b and the second positioning unit 207b. A file of a predetermined format (for example, Exif format) is generated by associating with the position information of the imaging position measured as the current position of the apparatus main body by the positioning unit 207c, and recording means (for example, a recording medium (not shown) ) And the memory 202).

As described above, according to the information communication system 100 of the present embodiment, when the imaging device 2 is determined to be connected to the mobile terminal 1 so as to be able to perform information communication, the second positioning unit 207c of the GPS processing unit 207 is used. While it is possible to execute the positioning of the current position by the mobile terminal 1, if it is determined that the mobile terminal 1 is not connected to be capable of information communication, the positioning of the current position by the first positioning unit 207b of the GPS processing unit 207 is performed. be able to.
Specifically, when it is determined that the mobile terminal 1 is connected to be communicable with the mobile terminal 1, the positioning of the current position by the first positioning unit 207 b is stopped and transmitted from the GPS satellite S and received by the mobile terminal 1. The signal (GPS information) is acquired from the portable terminal 1 by the communication control unit 208 via the wireless PAN, and the second positioning unit 207c measures the current position based on the GPS information acquired by the communication control unit 208. Therefore, in the situation where it is connected to the mobile terminal 1 so as to be capable of information communication, the positioning processing of the current position by the first positioning unit 207b with relatively large power consumption is stopped and GPS information is acquired from the mobile terminal 1 By executing the positioning process of the current position by the second positioning unit 207c with relatively low power consumption, it is possible to save power of the imaging device 2 itself . As a result, it is possible to suppress the power consumption for the positioning process of the current position and reduce the influence on other processes such as the imaging process.

In addition, when it is determined that the imaging device 2 is not connected to the mobile terminal 1 so as to be able to perform information communication, the first positioning unit 207b starts positioning of the current position, so that the imaging device 2 is connected to the mobile terminal 1 so as to be able to perform information communication. In a situation where it is not, the first positioning unit 207b executes the positioning process of the current position based on the signal (GPS information) transmitted from the GPS satellite S, so that the position where the apparatus main body exists, for example, the imaging apparatus 2 Thus, it is possible to appropriately specify the imaging position of the image captured.
At this time, before starting the positioning of the current position by the first positioning unit 207b, the first positioning unit 207b uses the GPS information acquired from the mobile terminal 1 and sequentially held in the memory 202 to By executing the positioning process, for example, the positioning process at the current position can be performed more efficiently than when the positioning process is performed without considering the relative arrangement of the satellites at the previous positioning position. Thereby, even if it is the positioning process of the present position by the 1st positioning part 207b with relatively large power consumption, the power consumption concerning the positioning process of a present position can be suppressed appropriately.

The present invention is not limited to the above-described embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.
For example, in the above embodiment, the GPS information generated by the mobile terminal 1 is transmitted to the imaging device 2, but for example, the GPS signal received by the GPS processing unit 109 of the mobile terminal 1 is imaged. You may make it transmit to the apparatus 2. FIG. In this case, the GPS signal is demodulated by the imaging device 2 to generate GPS information.

In addition, the configurations and the numbers of the mobile terminal 1 and the imaging device 2 are merely examples as illustrated in the above embodiment, and are not limited thereto.
Furthermore, in the said embodiment, although the portable terminal 1 was illustrated as an external device and the imaging device 2 was illustrated as an information communication apparatus, it is an example and is not restricted to this, For example, the imaging device 2 is set as an external device. The portable terminal 1 may function as an information communication device. Moreover, each of the portable terminal 1 and the imaging device 2 may function as an information communication device or an external device. In this case, the power supply unit 112 (212) is supplied by each of the portable terminal 1 and the imaging device 2. You may make it switch whether it functions as an information communication apparatus or an external apparatus according to the remaining amount of power supply possible.

In addition, in the above embodiment, the first positioning unit, the second positioning unit, the determination unit, and the control unit function as the first positioning unit under the control of the CPU of the central control unit 201 of the imaging device 2. The configuration is realized by driving the unit 207b, the second positioning unit 207c, the connection determination unit 209, and the positioning control unit 210. However, the configuration is not limited to this, and a predetermined program or the like is executed by the central control unit 201 It is good also as a structure implement | achieved by doing.
That is, a program including a first positioning processing routine, a second positioning processing routine, a determination processing routine, and a control processing routine is stored in a program memory (not shown) that stores the program. Then, the CPU of the central control unit 201 may function as first positioning means for positioning the current position based on the signal transmitted from the GPS satellite S by the first positioning processing routine. In addition, the CPU of the central control unit 201 obtains a signal transmitted from the GPS satellite S and received by the external device through the second positioning processing routine, and obtains the current position from the external device via the communication means. You may make it function as 2 positioning means. In addition, the CPU of the central control unit 201 may function as a determination unit that determines whether the communication unit is connected to an external device so as to be able to perform information communication by a determination processing routine. Further, when it is determined by the control processing routine that the CPU of the central control unit 201 is connected to the external device, the current position is determined by the second positioning means, but is not connected to the external device. When the determination is made, it may be made to function as a control means for controlling to execute the positioning of the current position by the first positioning means.

  Furthermore, as a computer-readable medium storing a program for executing each of the above processes, a non-volatile memory such as a flash memory or a portable recording medium such as a CD-ROM is applied in addition to a ROM or a hard disk. Is also possible. A carrier wave is also used as a medium for providing program data via a predetermined communication line.

Although several embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and equivalents thereof.
The invention described in the scope of claims attached to the application of this application will be added below. The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.
[Appendix]
<Claim 1>
A communication means for communicating with an external device connected via a communication line;
A first positioning means for positioning a current position based on a signal transmitted from a positioning satellite;
Second positioning means for positioning a current position by acquiring a signal transmitted from the positioning satellite and received by the external device from the external device via the communication means;
Determining means for determining whether or not the communication means is connected to the external device so as to enable information communication;
When it is determined that the external device is connected by the determination unit, the current position is determined by the second positioning unit, while it is determined that the external device is not connected by the determination unit. And control means for controlling to execute positioning of the current position by the first positioning means,
An information communication apparatus comprising:
<Claim 2>
Further comprising holding means for sequentially holding signals acquired by the communication means under the control of the control means;
The first positioning means includes
The information communication apparatus according to claim 1, wherein the current position is measured using a signal held in the holding unit.
<Claim 3>
Imaging means;
The image recording apparatus according to claim 1, further comprising: a recording unit that records the image data captured by the imaging unit and the position information measured by the first positioning unit or the second positioning unit in association with each other. The information communication apparatus according to 1 or 2.
<Claim 4>
Further comprising instruction means for instructing imaging by the imaging means;
The determination unit according to any one of claims 1 to 3, wherein, when imaging is instructed by the instruction unit, the communication unit determines whether or not the communication unit is connected so as to be able to perform information communication. The information communication apparatus according to claim 1.
<Claim 5>
5. The control unit according to claim 1, wherein the control unit further controls to stop positioning by the first positioning unit when it is determined by the determination unit that the external device is connected. The information communication apparatus according to any one of the above.
<Claim 6>
An information communication system in which a plurality of information communication devices are connected via a communication line,
Each of the information communication devices
A first positioning means for positioning a current position based on a signal transmitted from a positioning satellite;
A second positioning means for positioning a current position by acquiring a signal transmitted from the positioning satellite and received by another information communication device from the other information communication device via the communication line;
Determining means for determining whether or not the information communication device is connected to the other information communication device via the communication line;
If it is determined by the determination means that the communication device is connected to the other information communication device, the current position is determined by the second positioning device, while the determination device is connected to the other information device. If it is determined that there is no control means for controlling to perform positioning of the current position by the first positioning means;
An information communication system comprising:
<Claim 7>
An information communication method using an information communication device comprising a communication means for communicating with an external device connected via a communication line,
A first positioning process for positioning the current position based on a signal transmitted from a positioning satellite;
A second positioning process for positioning a current position by acquiring a signal transmitted from the positioning satellite and received by the external device from the external device via the communication means;
A determination process for determining whether the communication means is connected to the external device so as to enable information communication;
If it is determined by the determination process that the external device is connected, the current position is determined by the second positioning process, while the determination process determines that the external device is not connected. And a control process for controlling to execute positioning of the current position by the first positioning process;
An information communication method comprising:
<Claim 8>
A computer of an information communication device comprising a communication means for communicating with an external device connected via a communication line,
A first positioning means for positioning a current position based on a signal transmitted from a positioning satellite;
Second positioning means for positioning a current position by acquiring a signal transmitted from the positioning satellite and received by the external device from the external device via the communication means;
Determination means for determining whether or not the communication means is connected to the external device so as to enable information communication;
When it is determined that the external device is connected by the determination unit, the current position is determined by the second positioning unit, while it is determined that the external device is not connected by the determination unit. And control means for controlling to execute positioning of the current position by the first positioning means,
A program characterized by functioning as

100 Information Communication System 1 Portable Terminal 109 GPS Processing Unit 109b Positioning Unit 110 Second Communication Control Unit 2 Imaging Device 201 Central Control Unit 202 Memory 207 GPS Processing Unit 207b First Positioning Unit 207c Second Positioning Unit 208 Communication Control Unit 209 Connection Determination Part 210 Positioning control part

In order to solve the above problems, an information communication apparatus according to the present invention provides:
Communication means for communicating with an external device connected via a communication line, first acquisition means for acquiring first information without going through the communication means, and the first information acquired by the first acquisition means Transmitting means for transmitting to the external device via the communication means, second acquisition means for acquiring second information acquired by the external device from the external device via the communication means, and the communication Determining means for determining whether or not it is connected to the external device so as to allow information communication, and if the determination means determines that the external device is connected to the external device, the battery of the own device or the external device Based on the remaining amount, while performing either the acquisition process by the second acquisition unit or the transmission process by the transmission unit, when the determination unit determines that it is not connected to the external device, It is characterized with a control means for executing an acquisition process by first obtaining means, further comprising: a.

Claims (8)

A communication means for communicating with an external device connected via a communication line;
A first positioning means for positioning a current position based on a signal transmitted from a positioning satellite;
Second positioning means for positioning a current position by acquiring a signal transmitted from the positioning satellite and received by the external device from the external device via the communication means;
Determining means for determining whether or not the communication means is connected to the external device so as to enable information communication;
When it is determined that the external device is connected by the determination unit, the current position is determined by the second positioning unit, while it is determined that the external device is not connected by the determination unit. And control means for controlling to execute positioning of the current position by the first positioning means,
An information communication apparatus comprising: Further comprising holding means for sequentially holding signals acquired by the communication means under the control of the control means;
The first positioning means includes
The information communication apparatus according to claim 1, wherein the current position is measured using a signal held in the holding unit. Imaging means;
The image recording apparatus according to claim 1, further comprising: a recording unit that records the image data captured by the imaging unit and the position information measured by the first positioning unit or the second positioning unit in association with each other. The information communication apparatus according to 1 or 2. Further comprising instruction means for instructing imaging by the imaging means;
The determination unit according to any one of claims 1 to 3, wherein, when imaging is instructed by the instruction unit, the communication unit determines whether or not the communication unit is connected so as to be able to perform information communication. The information communication apparatus according to claim 1.   5. The control unit according to claim 1, wherein the control unit further controls to stop positioning by the first positioning unit when it is determined by the determination unit that the external device is connected. The information communication apparatus according to any one of the above. An information communication system in which a plurality of information communication devices are connected via a communication line,
Each of the information communication devices
A first positioning means for positioning a current position based on a signal transmitted from a positioning satellite;
A second positioning means for positioning a current position by acquiring a signal transmitted from the positioning satellite and received by another information communication device from the other information communication device via the communication line;
Determining means for determining whether or not the information communication device is connected to the other information communication device via the communication line;
If it is determined by the determination means that the communication device is connected to the other information communication device, the current position is determined by the second positioning device, while the determination device is connected to the other information device. If it is determined that there is no control means for controlling to perform positioning of the current position by the first positioning means;
An information communication system comprising: An information communication method using an information communication device comprising a communication means for communicating with an external device connected via a communication line,
Based on a signal transmitted from a positioning satellite, a first positioning process for positioning the current position, and a signal transmitted from the positioning satellite and received by the external device are acquired from the external device via the communication means. A second positioning process for positioning the current position,
A determination process for determining whether the communication means is connected to the external device so as to enable information communication;
If it is determined by the determination process that the external device is connected, the current position is determined by the second positioning process, while the determination process determines that the external device is not connected. And a control process for controlling to execute positioning of the current position by the first positioning process;
An information communication method comprising: A computer of an information communication device comprising a communication means for communicating with an external device connected via a communication line,
A first positioning means for positioning a current position based on a signal transmitted from a positioning satellite;
Second positioning means for positioning a current position by acquiring a signal transmitted from the positioning satellite and received by the external device from the external device via the communication means;
Determination means for determining whether or not the communication means is connected to the external device so as to enable information communication;
When it is determined that the external device is connected by the determination unit, the current position is determined by the second positioning unit, while it is determined that the external device is not connected by the determination unit. And control means for controlling to execute positioning of the current position by the first positioning means,
A program characterized by functioning as

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