JP2007208414A - Searching system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a searching system whereby a master unit can immediately search the location of a slave unit without the need for utilizing a public wireless network. <P>SOLUTION: The slave unit 1 provides its own positional information acquired from a slave unit positional information acquisition section 10 to the master unit 2, and the master unit 2 calculates the relative information of the slave unit 1 on the basis of positional information acquired from a master unit positional information acquisition section 20, azimuth information acquired from a master unit azimuth information acquisition section 21, and the positional information of the slave unit 1, so that the master unit 2 immediately searches the location of a party wherein the slave unit 1 is present. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a search system for determining relative positions between devices.

  Conventionally, as this type of search system, there is one using a radio beacon system. Normally, the transmitting device side of this radio beacon system can transmit a 457 kHz radio wave as a rescue signal, and the receiving device side can know the direction and approximate distance of the transmitting device from the received radio wave.

  However, the arrival distance of the radio wave transmitted by the transmission device of the radio wave beacon system is about 100 m, and there is a problem that searching cannot be performed if the distance between the radio wave beacon systems is more than that.

  When the mutual positions are known as longitude and latitude, distances and directions can be calculated as relative positions. As a method for detecting the longitude and latitude, a GPS (global positioning system) can be used. Here, information indicating the position and orbit of the satellite itself is superimposed on the radio wave transmitted by the GPS satellite, and the GPS receiver captures the positions of the plurality of satellites as three-dimensional coordinates. The GPS receiver measures the distance between the satellite and the GPS receiver from the arrival time of radio waves. Furthermore, the position of the GPS receiver can be calculated as three-dimensional coordinates from the positions of three or more satellites and the distance between each satellite and the GPS receiver, and the calculated three-dimensional coordinates are converted into a polar coordinate system. By doing so, the position of the GPS receiver itself can be measured as longitude and latitude as longitude and latitude.

  As a method of informing the longitude and latitude of the GPS receiver, there is a search device disclosed in Patent Document 1 using a mobile phone network such as a PHS (Personal Handyphone System) or a mobile phone. According to this search device, since the GPS receiver uses a differential GPS positioning system, highly accurate positioning can be performed. Further, by using a note signal, the slave unit has a function of returning a response only to the master unit that issued the specific note.

Another method for the GPS receiver to notify the longitude and latitude is a wireless position and direction indicator system disclosed in Patent Document 2 using Bluetooth and a mobile phone. This system can easily know which direction the search is possible by combining the calculation result of the relative position and the north finder such as an electronic compass.
Japanese Patent No. 3026170 JP 2002-62344 A

  As described above, each of the devices disclosed in Patent Document 1 and the system disclosed in Patent Document 2 can communicate their positions with each other using radio, so that the relative positions of each other Can know.

  However, when communicating wirelessly as in the system disclosed in Patent Document 2, the Bluetooth communication distance is about 10 m, which is not suitable for searching, and is similar to the apparatus disclosed in Patent Document 1. In such a mobile phone network, since information is exchanged after connecting the lines, there is a problem that the response is poor, the response time becomes long, and a communication fee is required.

  The present invention has been made in view of the above, and an object of the present invention is to provide a search system in which a parent device can immediately search a position where a child device is present without using a public wireless network. It is in.

  In order to solve the above-mentioned problem, the parent device acquires the current position of the child device by specific low-power wireless communication between the parent device that the searcher has and the child device that the searchee has. In the search system for searching for the search target person, the slave unit includes a slave unit location information acquisition unit that acquires the current location of the slave unit as slave unit location information, the master unit, and the specified low power radio A slave unit communication unit that communicates with the slave unit, and a slave unit control unit that controls the slave unit communication unit to transmit the acquired slave unit position information to the master unit. A parent device position information acquisition unit that acquires the current position as parent device position information, a parent device direction information acquisition unit that acquires an azimuth angle of the reference direction of the parent device as parent device direction information, and the child device and the specified low power The base unit communication unit that communicates wirelessly and the acquired base unit location information A relative direction calculation unit that calculates relative direction information of the slave unit from the reference direction based on the master unit orientation information and the slave unit position information received from the slave unit via the master unit communication unit; Relative distance calculation unit that calculates relative distance information with respect to the child device based on the parent device position information and the child device position information, and outputs either one of the calculated relative direction information and relative distance information, respectively. An information output unit that outputs information, an information visualization unit that generates operation GUI information based on the output information, a landscape capturing unit that captures landscape information in the reference direction at a predetermined angle of view, and the captured The gist of the invention is that it includes a superimposing unit that superimposes landscape information and the generated operation GUI information to generate superimposition information, and a landscape information display unit that displays the generated superimposition information.

  In order to solve the above-described problem, in the search system according to claim 1, the base unit further obtains the predetermined angle of view of the landscape capturing unit as angle-of-view information. Based on the acquisition unit, the relative direction information calculated by the relative direction calculation unit and the acquired angle of view information, it is determined whether or not the slave unit is within the angle of view of the landscape capturing unit, An angle-of-view range child device determination unit that outputs the determination result as angle-of-view range child device determination information, and the information visualization unit includes the operation GUI information including the output angle-of-view range child device determination information. The gist is to generate.

  According to a third aspect of the present invention, in order to solve the above problem, in the search system according to the second aspect, the master unit further includes an image of the landscape capturing unit for the relative distance information calculated by the relative distance calculating unit. A distance-to-view angle ratio recording unit that pre-records distance-to-view angle ratio information representing an angle, and an angle of view to be set in the landscape capturing unit is determined based on the relative distance information and the recorded distance-to-view angle information. The gist of the present invention is to include an angle-of-view determining unit that sets the determined angle of view in the landscape capturing unit.

  According to a fourth aspect of the present invention, in order to solve the above-described problem, in the search system according to the third aspect, the base unit is further configured based on the relative direction information calculated by the relative direction calculation unit. An adjustment direction calculation unit that calculates adjustment direction information for making the reference direction coincide with the front direction of the child device, and a direction adjustment unit that changes the direction of the parent device based on the calculated adjustment direction information. The gist of the invention is that the parent device control unit periodically controls the adjustment direction calculation unit and the direction adjustment unit so that the child device exists in the reference direction.

  In order to solve the above-mentioned problem, the invention according to claim 5 is the search system according to claim 4, wherein the slave unit further includes an identification information recording unit in which identification information is recorded in advance, and the slave unit control unit Is controlled to transmit both the slave unit location information acquired by the slave unit location information acquisition unit and the identification information from the slave unit communication unit to the master unit, and the master unit further includes the slave unit A slave unit identification unit that determines the identification information from the slave unit position information and identification information received via the master unit communication unit, and the master unit control unit corresponds to the determined identification information The gist is to control the relative direction calculation unit and the relative distance calculation unit to calculate the relative direction information and the relative distance information, respectively.

  According to the first aspect of the present invention, the child device provides the detected child device position information to the parent device, and the parent device calculates the relative position information of the child device from its own parent device position information and child device position information. Thus, there is no need to use a public wireless network, and the parent device can immediately search for the position of the partner with the child device.

  According to the second aspect of the present invention, whether or not there is a child device in the landscape captured by the landscape capturing unit by outputting the field angle range child device determination information indicating whether or not the child device is within the angle of view. You can tell immediately whether or not.

  According to the third aspect of the present invention, by determining the angle of view information of the landscape capturing unit based on the relative distance information with respect to the slave unit and the distance-to-view angle information, a specific magnification is set for the slave unit from the landscape capturing unit. Can be imported.

  According to the invention described in claim 4, by calculating the direction information in which the reference direction is the front of the slave unit from the relative direction information, and automatically adjusting the reference direction to an appropriate direction with respect to this direction information, The reference direction can be adjusted so that the handset is always in front.

  According to the invention of claim 5, by identifying a plurality of slave units and outputting relative direction information and relative distance information of a slave unit selected from the identified plurality of slave units, It becomes possible to identify.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram showing the configuration of a slave unit and a master unit in the first embodiment of the search system according to the present invention, and FIG. 2 is a flowchart showing the operation of the slave unit in the first embodiment.

  As shown in FIG. 1, the search system according to the present embodiment is roughly composed of a slave unit 1 and a master unit 2.

  The child device 1 is provided in the child device position information acquisition unit 10, the child device communication unit 11, the child device control unit 12, the CPU 12 a provided in the child device control unit 12, and the child device control unit 12. The portable terminal is composed of the memory 12b, a program stored in the memory 12b, and the antenna 13.

  The handset position information acquisition unit 10 uses, for example, GPS, and outputs an information acquisition signal to the handset control unit 12 when the current position of the handset 1 is acquired as handset position information.

  The slave unit communication unit 11 uses a specific low-power wireless transmitter that communicates with the master unit 2, and provides the slave unit 2 with 400 MHz, 10 mW slave unit location information once per second, for example. This specific low-power radio is a radio station with an antenna power of 0.01 W or less, and a frequency of 400 MHz in the ultra high frequency band (UHF) is assigned. In addition, the specific low-power radio does not require any license, qualification, or opening application, and can be used easily.

  The slave unit control unit 12 includes a CPU 12a and a memory 12b, stores the slave unit position information acquired by the slave unit position information acquisition unit 10 in the memory 12b, and converts the slave unit position information into a format suitable for communication. The slave unit communication unit 11 is controlled so as to be provided to the master unit 2.

  Next, operation | movement of the subunit | mobile_unit 1 in the search system of this embodiment is demonstrated based on the flowchart shown in FIG.

  First, the CPU 12a of the child device control unit 12 initializes the child device position information acquisition unit 10 to periodically acquire the child device position information (step S10). Here, the timing at which the slave unit position information acquisition unit 10 acquires the slave unit position information may be when the slave unit control unit 12 requests at an arbitrary timing.

  Next, the CPU 12a of the slave unit control unit 12 monitors the information acquisition signal output from the slave unit position information acquisition unit 10 (step S20), and if the information acquisition signal is detected (step S30: Yes), the slave unit position The subunit | mobile_unit position information from the information acquisition part 10 is memorize | stored in the memory 12b (step S40). When the information acquisition signal is not detected (step S30: No), the process returns to step S20, and the CPU 12a of the slave unit control unit 12 monitors the information acquisition signal until the information acquisition signal is detected.

  Next, the slave unit communication unit 11 is controlled so as to provide the slave unit position information stored in the memory 12b to the master unit 2 (step S50). Then, the termination condition of the process is determined in step S60, and if not terminated (step S60: No), the slave unit control unit 12 monitors the information acquisition signal output from the slave unit position information acquisition unit 10 again. On the other hand, if the termination condition is satisfied in step S60 (step S60: Yes), the entire process is terminated.

  1 includes a parent device position information acquisition unit 20, a relative distance calculation unit 20a, a landscape capturing unit 20b, a parent device direction information acquisition unit 21, an information visualization unit 21b, and a parent device. A communication unit 22, a superimposition unit 22b, a relative direction calculation unit 23, a landscape information display unit 23b, an information output unit 24, a parent device control unit 25, and a CPU 25a provided in the parent device control unit 25; The digital video camera includes a memory 25b provided in the parent device control unit 25, a program stored in the memory 25b, and an antenna 26.

  When the GPS is used, for example, and the current position of the parent device 2 is acquired as the parent device position information, the parent device position information acquisition unit 20 outputs the parent device position information to the parent device control unit 25 as an information acquisition signal.

  The relative distance calculation unit 20a calculates the relative distance information between the parent device 20a and the child device 1 by using the difference between the longitude and latitude of the parent device position information and the child device position information.

  The landscape capturing unit 20b corresponds to an objective lens in the optical type, and corresponds to a camera device in the electronic type. Further, it is assumed that the landscape capturing direction of the landscape capturing unit 20b is the reference direction of the parent device 2. Furthermore, the landscape capturing unit 20b outputs the captured landscape information to the superimposing unit 22b described later.

  When the electronic compass for detecting geomagnetism is used and the azimuth angle of the reference direction of the master unit 2 is acquired as the master unit orientation information, the master unit orientation information acquisition unit 21 acquires the master unit orientation information as the master unit control unit. 25 as an information acquisition signal.

  The relative direction calculation unit 23 uses the difference between the parent device position information and the child device position information to calculate relative direction information indicating which direction the child device 1 is from the reference direction of the parent device 2, Relative direction information indicating in which direction the handset 1 is located from the reference direction of the base unit 2 is calculated from the difference between the base unit heading information and the relative heading information.

  The information output unit 24 outputs parent machine position information, parent machine heading information, child machine position information, and relative direction information. The information output unit 24 may output at least one of the relative direction information calculated by the relative direction calculation unit 23 and the relative distance information calculated by the relative distance calculation unit 20a.

  The information visualization unit 21b creates visible information (operation GUI information) such as graphs, arrows, and characters from the relative direction information, the relative distance information, and other information output from the information output unit 24, and this visible information will be described later. It outputs to the superimposition part 22b.

  The base unit communication unit 22 uses a specific low-power wireless transmitter that communicates with the handset 1. When the handset 1 is provided with handset location information of 400 MHz, 10 mW, for example, once per second, The machine position information is output to the parent machine control unit 25 as an information acquisition signal. This specific low-power radio is a radio station with an antenna power of 0.01 W or less, and a frequency of 400 MHz in the ultra high frequency band (UHF) is assigned. In addition, the specific low-power radio does not require any license, qualification, or opening application, and can be used easily.

  The superimposing unit 22b outputs superimposition information obtained by superimposing landscape information and visible information.

The landscape information display unit 23b displays the superimposition information output from the superimposition unit 22b.
The parent device control unit 25 controls operations of the parent device position information acquisition unit 20, the parent device direction information acquisition unit 21, the parent device communication unit 22, the relative direction calculation unit 23, and the information output unit 24.

  Next, the principle of calculating the relative direction information by the relative direction calculation unit 23 will be described.

  From the parent device position information and the child device position information, the relative orientation information T of the child device 1 viewed from the parent device 2 can be obtained as follows.

  First, when the parent machine position information and the child machine position information are longitude and latitude information, they are converted into UTM (universal horizontal mercator) coordinates.

Next, relative azimuth angle information T is calculated from the plane orthogonal coordinates between the two points. Here, if the UTM coordinate of the parent device 2 is (x ₁ , y ₁ ) and the UTM coordinate of the child device 1 is (x ₂ , y ₂ ), the relative azimuth angle information T of the child device 1 with respect to the reference direction of the parent device 2 ₁ can be obtained from the following equation.

Here, t ₁ can be obtained from the following equation using the UTM coordinates of the parent device 2 and the child device 1.

Further, (t ₁ -T ₁ ) can be obtained from the following equation using the UTM coordinates, the scale factor m _0, and the average curvature radius R ₀ of the parent device 2 and the child device 1.

Here, m = 0.9999, and the average radius of curvature R ₀ can be obtained from the following equation using the major radius a of the earth, the first eccentricity e, and the latitude φ ₀ of the coordinate system origin. .

  Furthermore, relative direction information indicating whether the child device 1 is on the right or left side with respect to the reference direction of the parent device 2 can be obtained from the difference between the parent device azimuth angle information and the relative azimuth angle information. The relative direction information may be numerical information indicating an accurate angle, or may be information indicating a rough direction on the left and right.

  Next, the operation of the base unit 2 in the search system of this embodiment will be described based on the flowchart shown in FIG.

  First, the CPU 25a of the parent device control unit 25 initializes the parent device position information acquisition unit 20 and the parent device direction information acquisition unit 21 to periodically acquire information (step S110). Here, the timing for acquiring each piece of information may be when the parent device control unit 25 requests it at an arbitrary timing.

  Next, the CPU 25a of the parent device control unit 25 monitors the parent device position information acquisition unit 20, the parent device direction information acquisition unit 21, and the parent device communication unit 22 (step S120), and detects an information acquisition signal. (Step S130: Yes) determines the transmission source of the information acquisition signal (Step S140). When the information acquisition signal is not detected (step S120: No), the process returns to step S120, and the CPU 25a of the parent device control unit 25 monitors the information acquisition signal until the information acquisition signal is detected.

  In step S150, a process for each transmission source of the information acquisition signal is executed. That is, when the transmission source of the information acquisition signal is the parent device position information acquisition unit 20, the parent device control unit 25 stores the parent device position information from the parent device position information acquisition unit 20 in the memory 25b. In this case, the parent machine position information may be output to the information output unit 24.

  When the source of the information acquisition signal is the parent device direction information acquisition unit 21, the parent device control unit 25 stores the parent device direction information from the parent device direction information acquisition unit 21 in the memory 25b. In this case, the master unit position information may be output to the information output unit 24.

  Furthermore, when the transmission source of the information acquisition signal is the parent device communication unit 22, the parent device control unit 25 stores the child device position information from the parent device communication unit 22 in the memory 25b. In this case, the slave unit position information may be output to the information output unit 24.

  Next, in step S160, the CPU 25a of the parent device control unit 25 determines the recalculation condition. If the recalculation condition is relative direction calculation (step S160: Yes), the relative direction calculation unit 23 calculates the relative direction. Control to do. The information output unit 24 outputs the relative direction information calculated by the relative direction calculation unit 23 (step S170). If the recalculation condition is relative distance calculation (step S160: Yes), the relative distance calculation unit 20a is controlled to calculate the relative distance, and the recalculated relative distance information is output from the information output unit 24. (Step S170). The relative direction information and the relative distance information output in this way are output and displayed on the information visualization unit 21b (step S180). Here, the recalculation conditions are arbitrarily set. When the recalculation condition is not satisfied (step S160: No), the process returns to step S120, and the CPU 25a of the parent device control unit 25 monitors the information acquisition signal until the information acquisition signal is detected.

  Further, when the process is not ended in step S190 (step S190: No), the base unit control unit 25 receives the base unit position information acquisition unit 20, the base unit direction information acquisition unit 21, and the base unit communication unit 22. Continue monitoring information acquisition signals. On the other hand, when the process ends in step S190 (step S190: Yes), the entire process of the parent device 2 ends.

  Next, the principle of calculating the relative distance by the relative distance calculation unit 20a will be described.

  The relative distance information S of the child device 1 viewed from the parent device 2 can be obtained from the parent device position information and the child device position information as follows.

Similar to the calculation of the relative azimuth information, the position information of the parent device 2 and the position information of the child device 1 are converted into (x ₁ , y ₁ ) and (x ₂ , y ₂ ), respectively, as UTM coordinates. The geodesic length of the UTM coordinates of the master unit 2 and the UTM coordinates of the slave unit 1 is relative distance information.

Here, s / S can be calculated and UTM coordinates of the main terminal 2 and the handset 1, the scale factor m _0, the following equation using the average radius of curvature R _0.

  Thus, according to this embodiment, the subunit | mobile_unit 1 provides the detected subunit | mobile_unit position information to the main | base station 2, and the main | base station 2 is the relative position of the subunit | mobile_unit 1 from own parent | base station position information and subunit | mobile_unit position information. By calculating the information, it is not necessary to use a public wireless network, and the parent device 2 can immediately search for the position of the other party where the child device 1 is present.

(Second Embodiment)
FIG. 4 is a block diagram showing the configuration of the master unit in the second embodiment of the search system according to the present invention, and FIG. 5 shows whether there is a slave unit in the landscape captured by the landscape capturing unit in the second embodiment. 6A and 6B are explanatory diagrams showing whether there is a child device in the landscape captured by the landscape capturing unit in the operation of FIG. In FIG. 4, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description of the overlapping parts is omitted. The same applies to other embodiments.

  As shown in FIG. 4, the base unit 2A of the search system of the present embodiment is further provided with a field angle acquisition unit 20c and a field angle range slave unit determination unit 21c in addition to the base unit 2 of the first embodiment.

  The angle-of-view acquisition unit 20c acquires angle-of-view information indicating the range of landscape information captured by the landscape capture unit 20b.

  As shown in FIGS. 6A and 6B, the angle-of-view range slave device determination unit 21c includes the relative direction information θ calculated by the relative direction calculation unit 23 and the angle-of-view information φ acquired from the angle-of-view acquisition unit 20c. From the difference θ1, it is determined whether or not the handset 1 is in the landscape captured by the landscape capturing unit 20b.

  Next, an operation for determining whether or not the child device 1 is in the landscape captured by the landscape capturing unit 20b will be described with reference to the flowchart shown in FIG. It is assumed that the relative direction information is acquired by the method shown in the first embodiment, and this relative direction information is stored in the memory 25b.

  The CPU 25a of the parent device control unit 25 controls the view angle acquisition unit 20c to acquire the view angle information, and stores the acquired view angle information in the memory 25b (step S210). Next, the CPU 25a of the parent device control unit 25 determines whether the child device 1 is within the angle of view from the relative direction information θ and the angle of view information φ stored in the memory 25b by the angle of view range child device determination unit 21c. Control is performed so as to output angle-of-view range handset determination information indicating whether or not (step S220). In this case, if the difference θ1 between the relative direction information θ and the angle of view information φ is positive, it indicates that the handset 1 is not within the angle of view as shown in FIG. If so, as shown in FIG. 6A, it indicates that the handset 1 is within the angle of view. Further, when the angle-of-view range slave device determination unit 21c determines the angle-of-view range slave device determination information, the angle-of-view range slave device determination unit 21c outputs and displays it on the information visualization unit 21b (step S230).

  As described above, according to the present embodiment, by outputting the angle-of-view range child device determination information indicating whether or not the child device 1 is within the angle of view, the child device 1 is included in the landscape captured by the landscape capturing unit 20b. It is possible to immediately know whether or not there is.

(Third embodiment)
FIG. 7 is a block diagram showing the configuration of the master unit in the third embodiment of the search system according to the present invention, FIG. 8 is a flowchart showing the operation of keeping the magnification of the slave unit constant in the third embodiment, and FIG. It is a figure which shows the relationship between relative distance and a field angle.

  As shown in FIG. 7, the base unit 2B of the search system of the present embodiment further includes a distance-to-view angle ratio recording unit 20d and a view angle determination unit 21d in addition to the base unit 2A of the second embodiment.

  The distance-to-view angle ratio recording unit 20d records in advance distance-to-view angle ratio information indicating the angle of view of the landscape capturing unit 20b with respect to the relative distance information. This distance versus angle-of-view ratio information is information on the angle of view with respect to the relative distance at which the handset 1 can be captured at an arbitrary magnification as shown in FIG. 9, and even table data in which the distance and the angle of view are associated with each other. Alternatively, it may be an expression showing the relationship between the distance and the angle of view.

  The view angle determination unit 21d determines the view angle information from the relative distance information and the distance-to-view angle ratio information.

  Next, an operation of keeping the magnification of the slave unit 1 constant by setting the angle of view of the landscape capturing unit 20b will be described with reference to the flowchart shown in FIG. The relative distance information is acquired by the method shown in the first embodiment, the angle of view information is acquired by the method shown in the second embodiment, and each of these pieces of information is stored in the memory 25b. To do.

  The CPU 25a of the parent device control unit 25 controls the field angle determination unit 21d to read the latest field angle information and the latest relative distance information (step S310). Next, the field angle determination unit 21d determines the field angle from the field angle information and the relative distance information using the relationship between the field angle and the distance of the distance versus field angle ratio recording unit 20d (step S320). Then, the CPU 25a of the parent device control unit 25 reads the angle of view determined by the angle-of-view determination unit 21d and controls the landscape capturing unit 20b to capture the landscape at the angle of view (step S330).

  As described above, according to the present embodiment, by determining the angle-of-view information of the landscape capturing unit 20b based on the relative distance information with respect to the slave unit 1 and the distance versus angle-of-view information, the slave capturing unit 20b determines from the landscape capturing unit 20b. Can be captured at a specific magnification.

(Fourth embodiment)
FIG. 10 is a block diagram showing the configuration of the master unit in the fourth embodiment of the search system according to the present invention.

  As shown in FIG. 10, the base unit 2C of the search system of the present embodiment further includes an adjustment direction calculation unit 20e and a direction adjustment unit 21e in addition to the base unit 2B of the third embodiment.

  The adjustment direction calculation unit 20e determines adjustment direction information to be corrected so that the child device 1 is positioned in an arbitrary direction with respect to the reference direction of the parent device 2C from the relative direction information. Specifically, the adjustment direction calculation unit 20e calculates, as the number of pulses, direction information in which the reference direction is the front of the slave unit 1 from the relative direction information.

  The direction adjusting unit 21e adjusts the reference direction of the parent device 2C by inputting an arbitrary angle. Specifically, the direction adjustment unit 21e uses a rotary head that is rotated by a stepping motor, and automatically adjusts the reference direction in an appropriate direction with respect to the direction information calculated as the number of pulses by the adjustment direction calculation unit 20e. To do.

  The operation of automatically adjusting the direction so that the child device 1 appears in front of the reference direction of the parent device 2C will be described. It is assumed that the relative direction information is acquired by the method shown in the first embodiment, and this relative direction information is stored in the memory 25b.

  The CPU 25a of the parent device control unit 25 controls the adjustment direction calculation unit 20e to read the relative direction information. When the relative direction information is read, the adjustment direction calculation unit 20e determines that the handset 1 is in front of the reference direction, and if it is not in front, calculates how many times the angle is turned to be in front. Output as direction information. When the CPU 25a of the parent device control unit 25 inputs the adjustment direction information to the direction adjustment unit 21e, the direction adjustment unit 21e rotates the reference direction of the parent device to an angle at which the child device becomes the front. Such control is periodically executed.

  As described above, according to the present embodiment, by calculating the direction information in which the reference direction is the front of the handset 1 from the relative direction information, and automatically adjusting the reference direction to an appropriate direction with respect to this direction information. The reference direction can be adjusted so that the handset 1 is always in front.

(Fifth embodiment)
FIG. 11 is a block diagram showing the configuration of the slave unit in the fifth embodiment of the search system according to the present invention, and FIG. 12 is a block diagram showing the configuration of the master unit in the fifth embodiment of the search system according to the present invention. is there.

  As shown in FIG. 11, the slave unit 1A of the search system of the present embodiment further includes an identification information recording unit 10f in addition to the slave unit 1 of the first embodiment.

  As shown in FIG. 12, the base unit 2D of the search system of the present embodiment further includes a handset identification unit 20f in addition to the base unit 2C of the fourth embodiment.

  The identification information recording unit 10f records identification information unique to the slave unit and is composed of alphabets, numbers, and other characters.

  The subunit | mobile_unit control part 12 controls the subunit | mobile_unit communication part 11 so that the subunit | mobile_unit position information which added own identification information may be provided to the main | base station 2f.

  Therefore, when the CPU 25a of the parent device control unit 25 reads the child device position information from the parent device communication unit 22, the CPU 25a determines that the identification information is added to the child device identification unit 20f. When determining that the identification information is added, the child device identification unit 20f associates the child device position information with the identification information, and stores the child device position information of the plurality of child devices 1A in the memory 25b in a identifiable form.

  The CPU 25a of the parent device control unit 25 causes the relative direction calculation unit 23 to calculate the respective child device position information identified and the relative direction information of the parent device position information, and relative to each child device 1A in an identifiable form. The direction information is stored in the memory 25b.

  Similarly, the CPU 25a of the parent device control unit 25 causes the relative distance calculation unit 20a to calculate each child device position information and the relative direction information of the parent device position information, and each child device 1A in an identifiable form. Is stored in the memory 25b.

  The information visualization unit 21b creates visible information indicating information corresponding to the identification information, so that the landscape information display unit 23b can display each information in the plurality of slave units 1A.

  As described above, according to the present embodiment, a plurality of child devices 1A are identified, and the relative direction information and the relative distance information of the child devices selected from the identified plurality of child devices 1A are output. The machine can be identified.

(Sixth embodiment)
FIG. 13 is a block diagram showing the configuration of the slave unit in the sixth embodiment of the search system according to the present invention, and FIG. 14 is a block diagram showing the configuration of the master unit in the sixth embodiment of the search system according to the present invention. is there.

  As shown in FIG. 13, the subunit | mobile_unit 1B of the search system of this embodiment is further provided with the subunit | mobile_unit operation recording part 10g in the subunit | mobile_unit 1A of the said 5th Embodiment.

  As shown in FIG. 14, the base unit 2E of the search system of the present embodiment further includes a base unit control command recording unit 20g in addition to the base unit 2D of the fifth embodiment.

  The subunit | mobile_unit operation recording part 10g records the operation information which linked | related the control command and operation | movement of the subunit | mobile_unit control part 12. FIG. Specifically, the slave unit operation recording unit 10g records the operations of the slave unit control unit 12 such as initializing the acquisition timing of the slave unit position information acquisition unit 10 and the slave unit control commands corresponding to the respective operations. Is.

The slave unit control command recording unit 20g records the slave unit control command of the slave unit operation recording unit 10g. Specifically, the slave unit control command recording unit 20g records control information for controlling the operation of the slave unit control unit 12 of the slave unit 1B. Next, the acquisition timing of the slave unit position information acquisition unit 10 is initialized. The operation of changing the operation of the slave unit 1B from the master unit 2E will be described.

  The CPU 25a of the parent device control unit 25 selects an arbitrary command from the control commands recorded in the child device control command recording unit 20g and controls the parent device communication unit 11 so as to provide it to the child device 2.

  Similarly to the parent device communication unit 22, the child device communication unit 11 outputs an information acquisition signal to the child device control unit 12 when a control command is provided. CPU12a of the subunit | mobile_unit control part 12 determines the transmission source of an information acquisition signal.

  When the transmission source of the information acquisition signal is the slave unit communication unit 11, the CPU 12a of the slave unit control unit 12 reads information from the slave unit communication unit 11 and stores it in the memory 12b. Further, the CPU 12a of the slave unit control unit 12 discriminates between the control command stored in the memory 12b and the control command recorded in the slave unit operation recording unit 10g. Start the operation of the matched control instruction.

  As described above, according to the present embodiment, the master unit 2E records the control information for controlling the operation of the slave unit control unit 12 of the slave unit 1B, and sends the control information from the master unit communication unit 22 to the slave unit 1B. The slave unit 1B records the operation information in which the control command and the operation of the slave unit control unit 12 are associated, and the slave unit control unit 12 selects the operation information from the control information acquired from the slave unit communication unit 11 Thus, the master unit 2E can control the slave unit 1B.

(Modification)
FIG. 15 is a block diagram showing a configuration of a slave unit in a modification of the sixth embodiment of the search system according to the present invention.

  As shown in FIG. 15, the slave unit 1 </ b> C of the search system of the present modification further includes a slave unit information output unit 10 h in addition to the slave unit 1 </ b> B of the sixth embodiment.

  The subunit | mobile_unit information output part 10h may be a sound emission part, for example, and may be a light emission part. When the operation of the control command provided from the parent device 2g is information output, the child device control unit 12 controls to output information by emitting sound or emitting light from the child device information output unit 10h.

  Thus, according to the modification, when the operation information retrieved from the control information acquired from the slave unit communication unit 11 is information output, suitable information can be output from the slave unit information output unit 10h.

(Seventh embodiment)
FIG. 16 is a block diagram showing the configuration of the master unit in the seventh embodiment of the search system according to the present invention. FIG. 17 shows whether the master unit communication unit and the slave unit communication unit can communicate in the seventh embodiment. It is a flowchart which shows this operation | movement.

  As shown in FIG. 16, the base unit 2F of the search system of the present embodiment further includes a handset position information recording unit 20i in addition to the base unit 2E of the sixth embodiment.

  The slave unit location information recording unit 20i records the latest slave unit location information when the master unit communication unit 22 and the slave unit communication unit 11 cannot communicate.

  Next, an operation for determining whether or not the parent device communication unit 22 and the child device communication unit 11 can communicate with each other is described with reference to the flowchart shown in FIG.

  The CPU 25a of the parent device control unit 25 transmits a control command with a content for returning a confirmation response (step S350). Thereafter, when a confirmation response is provided from the slave unit communication unit 11 after an arbitrary time (step S360: Yes), it is determined that communication is possible, and slave unit position information is recorded (step S370).

  If the confirmation response is not provided (step S360: No), the parent device control unit 25CPU 25a determines that communication with the child device 1C is impossible, and uses the latest child device position information stored in the memory 25b as the child device position. Recorded in the information recording unit 20i, the landscape information display unit 23b outputs the latest position information of the child device 1C to the information output unit 24 (step S380).

  Next, when the process is not terminated in step S390 (step S390: No), the process returns to step S350, and a control command with a content for returning a confirmation response is transmitted. On the other hand, when the process ends in step S390 (step S390: Yes), the entire process ends.

  As described above, according to the present embodiment, when the parent device 2F cannot communicate with the child device 1C, the child device position information is recorded, and the landscape information display unit 23b displays the latest position information of the child device 1C as the information output unit 24. The latest position information of the slave unit 1C can be output even when communication with the slave unit 1C is not possible.

(Eighth embodiment)
FIG. 18 is a block diagram showing the configuration of the master unit in the eighth embodiment of the search system according to the present invention, and FIGS. 19A and 19B show the slave unit within the angle of view in the eighth embodiment. It is explanatory drawing which shows whether it exists.

  As shown in FIG. 18, the base unit 2G of the search system of the present embodiment further includes an imaging unit 20j and an imaging control unit 21j in addition to the base unit 2F of the seventh embodiment.

  The imaging unit 20j records landscape information based on the control from the imaging control unit 21j. Specifically, the imaging unit 20j captures video information output from the landscape capturing unit 20b and the superimposing unit 22b.

  The imaging control unit 21j controls operations such as imaging start of the imaging unit 20j. Specifically, the imaging control unit 21j determines that the handset 1C is within the view angle range θ2 as shown in FIG. 19B based on the view angle range handset information determined by the view angle range handset determination unit 21c. Then, imaging of the imaging unit 20j is started.

  Next, an operation of starting imaging when the slave unit 1C is within the angle of view of the landscape capturing unit 20b will be described.

  When the CPU 25a of the parent device control unit 25 acquires the view angle range child device determination information from the view angle range child device determination unit 21c by the method shown in the second embodiment, it outputs an imaging start signal to the image pickup control unit 21j. . When the imaging control unit 21j detects an imaging start signal, the imaging control unit 21j controls the imaging unit 20j to start imaging.

  As described above, according to the present embodiment, imaging of the imaging unit 20j is started when the slave unit 1C is within the view angle range θ2, based on the view angle range slave unit information determined by the view angle range slave unit determination unit 21c. Thus, it is possible to reliably image the slave unit 1C.

(Example)
Next, specific examples of the above-described embodiments of the present invention will be described.

  FIG. 20 is a schematic diagram showing an outline of an embodiment in which the parent device of the search system according to the present invention is a digital video camera. In FIG. 20, the portable terminal 3 that operates as the slave units 1, 1 </ b> A, 1 </ b> B, and 1 </ b> C of each of the embodiments, the digital video camera 4 that operates as the master units 2 and 2 </ b> A to 2 </ b> G of the above embodiments, and a specific low power It shows that a radio wave is transmitted from the portable terminal 3 to the digital video camera 4.

  FIG. 21 is a block diagram illustrating a configuration of an example of the mobile terminal 3.

  As shown in FIG. 21, the mobile terminal 3 includes a GPS receiver 30 corresponding to the slave unit position information acquisition unit 10, a specific low power wireless module 31 corresponding to the slave unit communication unit 11, a memory (not shown), a CPU, The central processing unit 32 controls the program and corresponds to the slave unit control unit 12. The memory and CPU of the central processing unit 32 correspond to the memory 12b and CPU 12a of the slave unit control unit 12.

  FIG. 22 is a block diagram illustrating a configuration of the GPS receiver 30 according to an embodiment.

  As shown in FIG. 22, the GPS receiver 30 includes an antenna unit 30a, a radio signal processing unit 30b having functions of a modem and an amplifier, and a baseband signal processing unit that calculates and outputs longitude and latitude from the demodulated data. 30c and an external connection unit 30d to which the demodulated data is output and a signal for controlling the operation of the baseband processing unit 30c is input.

  The GPS receiver 30 is connected to the central processing unit 32 by the external connection unit 30d. The GPS receiver 30 measures longitude and latitude by using radio waves received from a plurality of GPS satellites. A general GPS receiver outputs character string data in the NMEA-0183 format created by the baseband signal processing unit 30c.

  The GPS receiver 30 of the present embodiment outputs character string data in the NMEA-0183 format, and the central processing unit 32 stores the character string data in the NMEA-0183 format output from the GPS receiver 30 in a memory. .

  FIG. 23 is a block diagram illustrating a configuration of an example of the specific low power wireless module 31.

  As shown in FIG. 23, the specific low-power radio module 31 transmits data using radio, and includes an antenna unit 31a, a radio signal processing unit 31b having functions of a modem and an amplifier, and demodulated data. The baseband signal processing unit 31c that performs transmission / reception processing and an external connection unit 31d for inputting / outputting data to be transmitted / received, and the specific low-power wireless module 31 is connected to the central processing unit 32 by the external connection unit 31d. To do. The antenna unit 31a corresponds to the antenna 13 of the slave units 1, 1A, 1B, and 1C.

  Next, data transmission / reception of the specific low-power wireless module 31 will be described.

  When the central processing unit 32 writes data to the specific low-power wireless module 31, the baseband signal processing unit 31c performs data transmission processing, and the wireless signal processing unit 31b performs signal amplification and the like from the antenna unit 31a. Send radio waves. When the antenna unit 31a receives radio waves, the radio signal processing unit 31b demodulates the received radio waves, the baseband signal processing unit 31c performs reception processing, and outputs the received data from the external connection unit 31d.

  FIG. 24 is a flowchart illustrating an example of the operation of the mobile terminal 3.

  When the central processing unit 32 requests data from the GPS receiver 30 (step S410), the GPS receiver 30 outputs character string data indicating the latest longitude and latitude information in the NMEA-0183 format. Next, the central processing unit 32 stores character string data in the NMEA-0183 format in the memory (step S420). Furthermore, the central processing unit 32 reads out only the necessary longitude and latitude information from the longitude and latitude information consisting of character strings stored in the memory, and creates transmission data that is digitized longitude and latitude data (step S430). When the creation of the transmission data is completed, the central processing unit 32 writes the transmission data to the specific low power wireless module 31 and the specific low power wireless module 31 transmits the transmission data (step S440). When the data transmission of the specific low-power wireless module is completed, it is determined whether or not the mobile terminal 3 is continuously operated (step S450), and when it is operated (step S450: Yes), the central processing unit 32 Returning to S410, the GPS receiver 30 is requested again for data. On the other hand, when it does not operate (step S450: No), the entire process is terminated.

  FIG. 25 is a block diagram showing a configuration of an embodiment of the digital video camera 4.

  25, the digital video camera 4 includes a GPS receiver 40 corresponding to the parent device position information acquisition unit 20, a specific low-power wireless module 41 corresponding to the parent device communication unit 22, and a parent device direction information acquisition unit. 21, an electronic compass module 42 corresponding to the image capturing unit 20 j, an image memory 44, an OSD (On Screen Display) controller 45 corresponding to the superimposing unit 22 b, and a monitor corresponding to the information output unit 24. 46, a recording device 47 corresponding to the slave unit control command recording unit 20g and the slave unit position information recording unit 20i, a central processing unit 48 which controls a memory, a CPU and a program (not shown) and corresponds to the master unit control unit 25 Consists of. The monitor 46 can use a liquid crystal display.

  The GPS receiver 40 and the specific low-power wireless module 41 of the digital video camera 4 of this embodiment are the same as the GPS receiver 30 and the specific low-power wireless module 31 of the mobile terminal 3, and each of the central processing units Connect to device 48.

  FIG. 26 is a block diagram showing a configuration of an embodiment of the electronic compass module 42.

  As shown in FIG. 26, the electronic compass module 42 converts the geomagnetic sensor unit 42a, which is a geomagnetic sensor, and an analog signal indicating the magnitude of the geomagnetism output from the geomagnetic sensor unit 42a into a digital signal, and the magnitude of the geomagnetism. The signal processing unit 42b that calculates each azimuth and the external connection unit 42c that outputs a digital signal indicating the azimuth angle and that controls the operation of the signal processing unit 42b. The external connection unit 42c Thus, the electronic compass module 42 and the central processing unit 48 are connected.

  FIG. 27 is a block diagram illustrating a configuration of an embodiment of the camera device 43.

  As shown in FIG. 27, the camera device 43 includes an objective lens unit 43a, a video sensor unit 43b, a video processing unit 43c, and an external connection unit 43d. As the image sensor unit 43b, a sensor composed of a CCD element can be used.

  Next, the operation of the camera device 43 will be described.

  The image sensor unit 43b uses the scenery captured from the objective lens unit 43a as electronic data. The video processing unit 43c creates video data from the electronic data output from the video sensor 43b and outputs the video data from the external connection unit 43d. FIG. 28 is a diagram illustrating an example of the video data 50.

  As shown in FIG. 29, the image memory 44 records font information 44a such as an arrow prepared in advance. In this embodiment, as the font information 44a prepared in advance as shown in FIG. 30, a font 44a1 that is an arrow indicating the right, a font 44a2 that is an arrow indicating the left, and a font 44a3 indicating the front are prepared. To do.

  Further, the image memory 44 has at least two planes A (44b) and B (44c). Video data output from the camera device 43 is written in the plane A, and a central processing unit is written in the plane B. A font 48 is written from the font information 44a. The central processing unit 48 arbitrarily sets the font to be written.

  The OSD controller 45 controls to output the information of the image memory 44 to the monitor, and outputs the superimposition information obtained by superimposing the information of the plane A (44b) and the plane B (44c) of the image memory 44 to the monitor 46. To do. FIG. 31 shows superimposition information.

  The recording device 47 records video data from the camera device 43, and starts imaging recording when receiving an imaging start signal from the central processing unit.

  As shown in FIG. 31, for example, when the direction indicated by the font is right, the digital video camera 4 is turned to the right so that the position of the portable terminal 3 becomes the center of the video data 50 as shown in FIG. Can be easily corrected.

  Further, the central processing unit 48 outputs an imaging start signal to the recording device 47, triggered by the calculated angle indicating the direction of the mobile terminal 3 being within a preset arbitrary angle, and the recording device 47 performs imaging. By starting, it is possible to succeed in imaging without failing to take a subject having the terminal device 3.

  FIG. 33 is a flowchart showing an example of the operation of the digital video camera 4. It is assumed that the camera device 43 is constantly outputting video data, and the OSD controller 45 is controlled to output the video data to the monitor 46.

  First, the central processing unit 48 requests data from the GPS receiver 40 and stores longitude and latitude information in a memory (step S510). Next, the central processing unit 48 requests data from the electronic compass module 42 and stores the azimuth angle information in the memory (step S520). Then, the central processing unit 48 determines whether or not the specific low power wireless module 41 has received a radio wave (step S530).

  When the specific low power wireless module 41 receives the radio wave (step S530: Yes), the received data is stored in the memory (step S540). When the radio wave is not received (step S530: No), the process proceeds to step S550 described later. The central processing unit 48 calculates an angle indicating in which direction the mobile terminal 3 is located from its own longitude / latitude information and orientation information of the information stored in the memory and the longitude / latitude information of the mobile terminal 3 (step S550). ). In addition, about the calculation method of the angle which shows which direction the portable terminal 3 exists, since the method demonstrated in the said embodiment can be used, the description is abbreviate | omitted.

  The central processing unit 48 stores a table in which the angle calculated in advance and the font information 44a in the image memory 44 are associated with each other in the memory. The central processing unit 48 selects a font and selects the plane B ( 44c), and the central processing unit 48 controls the OSD controller 45 to create superimposition information by superimposing the video data of the plane A (44b) of the image memory 44 and the font of the plane B (44c). Output (step S550).

It is a block diagram which shows the structure of a subunit | mobile_unit and a main | base station in 1st Embodiment of the search system which concerns on this invention. It is a flowchart which shows operation | movement of the subunit | mobile_unit in 1st Embodiment. It is a flowchart which shows operation | movement of the main | base station in 1st Embodiment. It is a block diagram which shows the structure of the main | base station in 2nd Embodiment of the search system which concerns on this invention. It is a flowchart which shows the operation | movement which determines whether there exists a subunit | mobile_unit in the landscape taken in by the landscape taking-in part in 2nd Embodiment. (A), (B) is explanatory drawing which shows whether the subunit | mobile_unit exists in the scenery which the scenery taking-in part took in by the operation | movement of FIG. It is a block diagram which shows the structure of the main | base station in 3rd Embodiment of the search system which concerns on this invention. It is a flowchart which shows the operation | movement which keeps the magnification of a subunit | mobile_unit constant in 3rd Embodiment. It is a figure which shows the relationship between a relative distance and a field angle. It is a block diagram which shows the structure of the main | base station in 4th Embodiment of the search system which concerns on this invention. It is a block diagram which shows the structure of the subunit | mobile_unit in 5th Embodiment of the search system which concerns on this invention. It is a block diagram which shows the structure of the main | base station in 5th Embodiment of the search system which concerns on this invention. It is a block diagram which shows the structure of the subunit | mobile_unit in 6th Embodiment of the search system which concerns on this invention. It is a block diagram which shows the structure of the main | base station in 6th Embodiment of the search system which concerns on this invention. It is a block diagram which shows the structure of the subunit | mobile_unit in the modification of 6th Embodiment of the search system which concerns on this invention. It is a block diagram which shows the structure of the main | base station in 7th Embodiment of the search system which concerns on this invention. It is a flowchart which shows operation | movement of whether a main | base station communication part and a subunit | mobile_unit communication part can communicate in 7th Embodiment. It is a block diagram which shows the structure of the main | base station in 8th Embodiment of the search system which concerns on this invention. (A), (B) is explanatory drawing which shows whether the subunit | mobile_unit is in the angle of view in 8th Embodiment. It is a schematic diagram which shows the outline | summary of the Example whose main | base station of the search system which concerns on this invention is a digital camera. It is a block diagram which shows the structure of the Example of a portable terminal. It is a block diagram which shows the structure of the Example of a GPS receiver. It is a block diagram which shows the structure of the Example of a specific low power wireless module. It is a flowchart which shows an example of operation | movement of a portable terminal. It is a block diagram which shows the structure of the Example of a digital video camera. It is a block diagram which shows the structure of the Example of an electronic compass module. It is a block diagram which shows the structure of the Example of a camera apparatus. It is a figure which shows an example of video data. It is a figure which shows the structure of the Example of an image memory. It is a figure which shows the font information prepared beforehand. It is a figure which shows superimposition information. It is a figure which shows superimposition information. It is a flowchart explaining an example of operation | movement of a digital video camera.

Explanation of symbols

1, 1A, 1B, 1C Slave unit 2, 2A to 2G Master unit 3 Portable terminal 4 Digital video camera 10 Slave unit position information acquisition unit 10f Identification information recording unit 10h Slave unit information output unit 10g Slave unit operation recording unit 11 Slave unit Communication unit 12 Slave unit control unit 13 Antenna 20 Master unit position information acquisition unit 20a Relative distance calculation unit 20b Landscape capture unit 20c Angle of view acquisition unit 20d Distance to angle of view ratio recording unit 20e Adjustment direction calculation unit 20f Slave unit identification unit 20g Child Machine control command recording unit 20i Slave unit position information recording unit 20j Imaging unit 21 Master unit orientation information acquisition unit 21b Information visualization unit 21c Field angle range slave unit determination unit 21d Field angle determination unit 21e Direction adjustment unit 21j Imaging control unit 22 Base unit Communication unit 22b Superimposition unit 23 Relative direction calculation unit 23b Landscape information display unit 25 Master unit control unit 26 Antenna 30 GPS receiver 30a Tena unit 30b Wireless signal processing unit 30c Baseband signal processing unit 30d External connection unit 31 Specific low power wireless module 31a Antenna unit 31b Wireless signal processing unit 31c Baseband signal processing unit 31d External connection unit 32 Central processing unit 40 GPS receiver 41 Specific low-power radio module 42 Electronic compass module 42a Geomagnetic sensor unit 42b Signal processing unit 42c External connection unit 43 Camera device 43a Objective lens unit 43b Video sensor unit 43c Video processing unit 43d External connection unit 44 Image memory 44a Font information 44b Plane A
44c Plane B
45 0SD controller 46 Monitor 47 Recording device 48 Central processing unit

Claims (5)

A search system in which the master unit acquires the current position of the slave unit and searches for the searcher by specific low-power wireless communication between the master unit the searcher has and the slave unit the searcher has,
The slave is
A handset position information acquisition unit for acquiring the current position of the handset as handset position information;
A slave unit communication unit that communicates with the master unit by specific low-power radio;
A slave unit control unit that controls to transmit the acquired slave unit position information from the slave unit communication unit to the master unit;
The base unit is
A parent device position information acquisition unit for acquiring the current position of the parent device as parent device position information;
A master unit orientation information acquisition unit that acquires the reference direction azimuth of the master unit as master unit orientation information;
A master communication unit that communicates with the slave by specific low-power radio;
Relative direction information of the slave unit from the reference direction based on the acquired master unit location information, master unit orientation information, and slave unit location information received from the slave unit via the master unit communication unit A relative direction calculation unit for calculating
A relative distance calculation unit that calculates relative distance information with respect to the child device based on the parent device position information and the child device position information;
An information output unit that outputs one of the calculated relative direction information and the relative distance information as output information;
An information visualization unit that generates operation GUI information based on the output information output;
A landscape capturing unit for capturing landscape information in the reference direction at a predetermined angle of view;
A superimposing unit that superimposes the captured landscape information and the generated operation GUI information to generate superimposition information;
A landscape information display unit for displaying the generated superposition information;
Search system characterized by having each. The master unit is further
An angle of view acquisition unit for acquiring the predetermined angle of view of the landscape capturing unit as angle of view information;
Based on the relative direction information calculated by the relative direction calculation unit and the acquired angle of view information, it is determined whether or not the child device is within the angle of view of the landscape capturing unit, and the determination result is An angle-of-view range cordless handset determination unit that outputs the angle of view range cordless handset determination information
The search system according to claim 1, wherein the information visualization unit generates the operation GUI information including the output angle-of-view range slave unit determination information. The master unit is further
A distance-to-view angle ratio recording unit that pre-records distance-to-view angle ratio information representing an angle of view of the landscape capturing unit with respect to the relative distance information calculated by the relative distance calculation unit;
An angle of view determination unit for determining an angle of view to be set in the landscape capturing unit based on the relative distance information and the recorded distance versus angle of view information;
A master control unit that sets the determined angle of view in the landscape capturing unit;
The search system according to claim 2, further comprising: The master unit is further
Based on the relative direction information calculated by the relative direction calculation unit, an adjustment direction calculation unit that calculates adjustment direction information for making the reference direction of the parent device coincide with the front direction of the child device;
A direction adjustment unit that changes the direction of the parent device based on the calculated adjustment direction information,
The search system according to claim 3, wherein the base unit control unit periodically controls the adjustment direction calculation unit and the direction adjustment unit so that the slave unit exists in the reference direction. The slave unit further includes
An identification information recording unit in which identification information is recorded in advance;
The slave unit control unit controls the slave unit position information acquired by the slave unit position information acquisition unit and the identification information to be transmitted from the slave unit communication unit to the master unit, and
The master unit is further
A slave unit identification unit for determining the identification information from the slave unit position information and identification information received from the slave unit via the master unit communication unit;
The base unit control unit controls the relative direction calculation unit and the relative distance calculation unit to calculate the relative direction information and the relative distance information, respectively, corresponding to the determined identification information. Item 5. The search system according to Item 4.

Images