JP2014197809A - Search system, search device, search program, and search method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a terminal device in a prescribed state to be searched more efficiently than conventionally possible.SOLUTION: A search system comprises: a plurality of terminal devices; a collection unit for collecting, from the plurality of terminals, the feature amount of a plurality of elements for determining an environment, in which each terminal device is located, in order of priority indicating the height level of a narrow-down effect set for each pixel determining a prescribed environment; and a search device for comparing the collected feature amount of each terminal device with a reference range every time the feature amount is collected by the collection unit, extracting a terminal device whose collected feature amount is included in the reference range as the object to be collected by the collection unit, and searching for a terminal device in a prescribed environment from the plurality of terminal devices.

Description

  The present invention relates to a search system, a search device, a search program, and a search method.

  Some terminal devices such as mobile phones and smartphones have a plurality of sensors such as acceleration sensors and temperature sensors.

  For example, a technique for searching for terminal devices in the same or equivalent environment based on measurement values measured by a plurality of sensors included in the plurality of terminal devices is known (see, for example, Patent Documents 1 and 2). ).

JP 2011-151562 A JP 2006-287401 A

  However, since the conventional technique compares various types of measurement values obtained by each terminal device, it takes time to search for terminal devices in the same or equivalent environment.

  The search system, search device, search program, and search method disclosed herein are capable of efficiently searching for a terminal device in a predetermined environment as compared with the related art.

  According to one aspect, the search system has a high degree of narrowing-down effect in which feature amounts of a plurality of terminal devices and a plurality of elements that define an environment in which each terminal device is placed are set in each element that defines a predetermined environment The collection unit that collects from multiple terminal devices in the order of priority, and each time the feature amount is collected by the collection unit, the collected feature amount of each terminal device is compared with the reference range and collected And a search device that includes a search unit that extracts a terminal device whose feature amount is included in the reference range as a collection target of the collection unit and searches for a terminal device in a predetermined environment from the plurality of terminal devices.

  According to another aspect, the search device prioritizes a feature amount of a plurality of elements that define each environment where a plurality of terminal devices are placed, and indicates a high degree of narrowing effect set for each element that defines a predetermined environment. In order of degree, each time a feature value is collected by a collection unit that collects from a plurality of terminal devices, the collected feature value of each terminal device is compared with a reference range, and the collected feature value is A search unit that extracts a terminal device included in the reference range as a collection target of the collection unit and searches for a terminal device in a predetermined environment from the plurality of terminal devices.

  According to still another aspect, the search program indicates the high degree of the narrowing effect set for each element that defines a predetermined environment by using the feature amounts of the plurality of elements that define the environment in which the plurality of terminal devices are placed. Each time feature values are collected from multiple terminal devices in order of priority and collected by the collection process, the collected feature values of each terminal device are compared with the reference range, and the collected feature values are used as a reference. The terminal device included in the range is extracted as a collection target of the collection process, and the computer is caused to execute a process of searching for a terminal device in a predetermined environment from a plurality of terminal devices.

  According to still another aspect, the search method has a high degree of narrowing effect in which feature amounts of a plurality of elements that define respective environments in which a plurality of terminal devices are placed are set for each element that defines a predetermined environment. Each time a feature value is collected from a plurality of terminal devices in the order of priority, and the feature value is collected by the collection process, the collected feature value of each terminal device is compared with a reference range, and the collected feature value Is extracted as a collection target of the collection process, and a terminal device in a predetermined environment is searched from a plurality of terminal devices.

  The search system, search device, search program, and search method of the present disclosure can search for a terminal device in a predetermined environment more efficiently than in the past.

It is a figure showing one embodiment of a search system and a search device. It is a figure which shows an example of an element table. It is a figure which shows the example of the search process by the search system shown in FIG. It is a figure which shows another embodiment of a search system and a search device. It is a figure which shows an example of the terminal device shown in FIG. It is a figure which shows an example of a logical table. It is a figure which shows an example of the search device shown in FIG. It is a figure which shows an example of an element table. FIG. 5 is a diagram (part 1) illustrating an example of a retrieval process of the retrieval system illustrated in FIG. 4. FIG. 5 is a diagram (part 2) illustrating an example of a retrieval process of the retrieval system illustrated in FIG. 4. It is a figure which shows another embodiment of a search system and a search device. It is a figure which shows an example of the terminal device shown in FIG. It is a figure which shows the example of the processing operation of the search system shown in FIG.

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

  FIG. 1 shows an embodiment of a search system and a search apparatus. The search system 100 illustrated in FIG. 1 includes a terminal device 10 (10 (1) -10 (n)) and a search device 20 (n is a positive integer). For example, the terminal device 10 and the search device 20 communicate wirelessly. Alternatively, the terminal device 10 is a search device connected to a network via a mobile phone base station or an access point of a communication standard such as a wireless LAN (Local Area Network) or Wi-Fi (Wireless Fidelity) (registered trademark). 20 may be communicated.

  For example, the terminal devices 10 (1) -10 (n) are portable terminals that can be carried by users such as mobile phones, smartphones, tablet terminals, and game terminals. The terminal device 10 includes a plurality of sensors that measure measurement values such as voice, acceleration, and temperature, and has a function of transmitting the measurement values measured by the built-in sensors to the search device 20. Voice, acceleration, temperature, and the like are elements that determine the environment of the space in which the terminal device 10 is placed. Hereinafter, voice, acceleration, temperature, and the like are also referred to as environmental elements, and measurement values such as voice, acceleration, and temperature are also referred to as environmental element values. The environmental element is an example of an element, and the measurement value is an example of a feature amount.

  The search device 20 is, for example, a computer such as a server or the terminal device 10. As illustrated in FIG. 1, the search device 20 includes, for example, a control unit 21 and a storage unit 24. The control unit 21 is a microprocessor or the like that executes a program stored in a storage unit 24 such as a hard disk drive (HDD) or a read only memory (ROM), and controls each unit. The control unit 21 functions as, for example, the collection unit 22 and the search unit 23 in order to search for the terminal device 10 placed in a predetermined environment such as a conference room or a car by executing the program.

  The collection unit 22 collects measurement values of environmental elements from the terminal devices 10 (1) -10 (n) in order of priority set for each environmental element that defines a predetermined environment via wireless communication. .

  Each time the measurement value is collected by the collection unit 22, the search unit 23 compares the collected measurement value of the environmental element of each terminal device 10 with the reference value of the environmental element indicating a predetermined environment. For example, the search unit 23 sequentially extracts the terminal devices 10 whose measured values of the terminal devices 10 match the reference value within a predetermined range as the next terminal device to be collected by the collection unit 21, and The terminal device 10 in a predetermined environment is searched from among the above. Note that the predetermined range is, for example, a range of a value having a magnitude of 5% or 10% with respect to the reference value, the measurement error of the sensor built in the terminal device 10 and the required search accuracy of the search device 20. It is preferable to be determined according to the above. Hereinafter, the predetermined range is referred to as a reference range.

  The storage unit 24 stores, together with the program, for example, an element table 30 having reference values of environmental elements such as sound, acceleration, and temperature that define a predetermined environment. In addition, although the memory | storage part 24 was included in the search device 20, it is not limited to this, For example, you may include in an external computer etc. Then, the search device 20 may read the element table 30 from the storage unit 24 such as an external computer when performing the search process.

  FIG. 2 shows an example of the element table 30. The element table 30 has an area for storing a reference value of each environmental element such as sound, acceleration, temperature, etc. that defines each environment for each of a plurality of environments where the terminal device 10 may be placed. The element table 30 also has an area for storing the priority of each environmental element set for each environment. For example, FIG. 2 shows “Environment 1” indicating the characteristics of the environment in the vehicle where music such as radio is being played, and “Environment 2” indicating the characteristics of the environment inside the vehicle where music such as radio is not being played. . The element table 30 shown in FIG. 2 includes a narrowing priority (upper row) and a reference value (lower row), which are the degree of the narrowing effect of each environmental element in a car in which music is played and in a car in which music is not played. ) And an example.

  Here, the reason why the priority is set for each environmental element is, for example, in the case of “Environment 1” in the car in which music such as radio is played, the voice environmental element such as music such as radio is more The characteristic of “environment 1” is shown from the environmental element of acceleration indicating the movement of In other words, the voice environment element can more accurately narrow down the terminal devices 10 that may be placed in the “environment 1” from among the many terminal devices 10 than the acceleration environment element. On the other hand, in the case of “environment 2” in a vehicle where music such as radio is not being played, the environmental element of acceleration shows the characteristics of “environment 2” rather than the environmental element of voice. In other words, the acceleration environment element can more accurately narrow down the terminal devices 10 that may be placed in the “environment 2” from among the many terminal devices 10 than the sound environment element.

  The element table 30 illustrated in FIG. 2 has a plurality of environments, but is not limited thereto, and may have one environment.

  FIG. 3 shows an example of search processing by the search system 100 shown in FIG. The operation illustrated in FIG. 3 is realized, for example, when the control unit 21 executes a search program. Steps S10, S11, S12, S13, and S14 show the operation of the search device 20, and step S20 shows the operation of the terminal device 10 (1) -10 (n).

  In the following description, for example, the search device 20 receives a search request from the terminal device 10 (1) and information indicating the environment of the terminal device 10 (1), and the terminal device 10 (1) is placed. A case where the terminal device 10 in the same or equivalent environment is searched will be described. The search device 20 performs the same or equivalent processing shown in FIG. 3 even when a search request and information indicating the environment of each terminal device 10 are received from the terminal devices 10 (2) -10 (n). Therefore, the description of the search processing when the search device 20 receives a search request from the terminal devices 10 (2) -10 (n) will be omitted.

  In step S10, for example, the search device 20 receives a search request and information indicating the environment of the terminal device 10 (1) from the terminal device 10 (1). The control unit 21 of the search device 20 searches each terminal device 10 in the same or equivalent environment as the received environment of the terminal device 10 (1), so that each environment corresponding to the environment of the terminal device 10 (1). The element priority and the reference value of the measurement value are read from the element table 30.

  In step S11, in the first loop, the collection unit 22 transmits a measurement value of an environmental element (for example, voice or the like) indicating the highest value among the read priorities to the terminal device 10 (2) -10 ( n) respectively.

  In step S <b> 20, the terminal devices 10 (2) to 10 (n) measure the requested measurement values in response to the request from the search device 20 and transmit the measured values to the search device 20. In addition, each terminal device 10 may transmit the latest measurement value to the search device 20 from the measurement values that have already been measured.

  In step S12, the collection unit 22 receives and collects measurement values transmitted from the terminal devices 10 (2) -10 (n). The collection unit 22 outputs the collected measurement values of each terminal device to the search unit 23.

  In step S13, for example, the search unit 23 compares the received measurement value of each terminal device 10 with the reference value of the environmental element to be collected read from the element table 30, and the measurement value is included in the reference range. The apparatus 10 is extracted as a collection target of the collection unit 22.

  In step S14, the collection unit 22 determines whether there is an unmeasured environmental element. When there is an unmeasured environmental element, the collection unit 21 proceeds to the process of Step S11 (YES side). In step S11 and step S12, the collection unit 22 causes the terminal device 10 extracted in step S13 to measure the measurement value of the environmental element set with the highest priority value among the unmeasured environmental elements. collect. In step S13, the search unit 23 compares the collected measurement values of the terminal devices 10 with the reference values of the environmental elements to be collected, and further extracts and extracts the terminal devices 10 whose measurement values are included in the reference range. To do.

  On the other hand, when there is no unmeasured environmental element (NO side in step S14), the collection unit 22 is configured so that the terminal device 10 extracted by the extraction unit 23 is in the same or equivalent environment as the environment of the terminal device 10 (1). The search process is terminated. For example, it is preferable that the control unit 21 transmits the data of the terminal device 10 searched by the search unit 23 to the terminal device 10 (1).

  As described above, in this embodiment, the search device 20 collects the measurement values of the environmental elements from the terminal device 10 in order from the environmental element with the highest priority. As described above, the priority of each environmental element is set to a value indicating a higher priority as the number of terminal devices from which measurement values included in the reference range are obtained in the target environment, that is, as the narrowing effect is higher. Is done. Therefore, every time the measurement value is collected, the search device 20 extracts the terminal device 10 that may be in a predetermined environment based on the collected measurement value. The terminal device in the environment can be searched efficiently.

  In addition, since the terminal devices 10 to be searched are narrowed down in order from the environmental element with the highest priority and the terminal devices 10 that are not targeted are not involved in the subsequent processing, the terminal devices 10 and the search system 100 that are not targeted. The overall processing load can be reduced.

  FIG. 4 shows another embodiment of the search system and search device. The search system 200 shown in FIG. 4 includes a terminal device 110 (110a (1) -110a (n), 110b (1) -110b (m)), a search device 120, a communication station 130 (130a, 130b), and a network NW. (M and n are positive integers).

  For example, the terminal device 110 is a portable terminal that can be carried by a user, such as a mobile phone, a smartphone, a tablet terminal, or a game terminal. The terminal devices 110a (1) -110a (n) are within the communication range of a communication station 130a such as a mobile phone base station or an access point of a communication standard such as a wireless LAN or Wi-Fi. The terminal devices 110a (1) -110a (n) communicate with the search device 120 connected to the network NW via the communication station 130a. On the other hand, the terminal devices 110b (1) -110b (m) are within the communication range of a communication station 130b such as a mobile phone base station or an access point of a communication standard such as a wireless LAN or Wi-Fi. The terminal devices 110b (1) -110b (m) communicate with the search device 120 connected to the network NW via the communication station 130b.

  The search device 120 is, for example, a computer connected to the network NW.

  FIG. 5 shows an example of the terminal device 110 shown in FIG. The terminal device 110 illustrated in FIG. 5 includes a control unit 111, a storage unit 112, a communication unit 113, and a sensor 114 (114 (1) -114 (k)) (k is a positive integer).

  For example, the control unit 111 is a microprocessor or the like that controls each unit of the terminal device 110 by executing a program stored in the storage unit 112 such as a ROM.

  For example, the communication unit 113 converts an electrical signal such as a control instruction output from the control unit 111 or a measurement value measured by each sensor 114 into an electromagnetic wave, and outputs the electromagnetic wave to the communication station 130 via a built-in antenna. In addition, the communication unit 113 receives the electromagnetic wave output from the communication station 130 with the built-in antenna, converts the received electromagnetic wave into an electrical signal, and outputs the electrical signal to the control unit 111.

  Sensors 114 (1) -114 (k) are, for example, a microphone, an acceleration sensor, an electronic gyro, an illuminance sensor, a temperature sensor, and the like. Each sensor 114 measures the environment of the space in which the terminal device 110 is placed, and outputs measured values of environmental elements such as voice, acceleration, direction, illuminance, and temperature to the control unit 111.

  By the way, for example, the measurement value of the environmental element of sound includes information such as music, conversational sound of one person or plural persons, silence, sound of waves, and the like. The measurement value of the environmental element of acceleration includes, for example, information such as a stationary state, acceleration and deceleration associated with movement such as a car and walking, or vibration associated with operation of the terminal device 110. The measurement value of the environmental element of the azimuth includes, for example, information such as a stationary state and a change in the traveling direction due to a movement such as a car or a walk. The measurement value of the environmental element of illuminance includes, for example, information such as lighting in a room or a car, the sun or the shade. The measured value of the environmental element of temperature includes, for example, information on indoor and outdoor temperature. Hereinafter, information included in the measurement value of the environmental element is referred to as a lower element.

  Therefore, the control unit 111 includes, for example, spectrum analysis and time series analysis of various sub-elements included in each environmental element with respect to time series data of measurement values measured by each sensor 114 for a predetermined time. Perform logic processing. The control unit 111 calculates an index indicating the degree of compatibility between the measured value of the environmental element and each lower element, and determines the lower element indicated by the measured value of the environmental element based on the calculated index. The storage unit 112 stores a program for logical processing of various sub-elements included in each environment element in an area assigned to each. In addition, the storage unit 112 stores, for example, a logical table 40 that indicates subordinate elements of each environmental element and an area in which a program for logical processing of each subordinate element is stored.

  FIG. 6 shows an example of a logical table. The logic table 40 has an area indicating an area in which a lower element included in each environmental element and a program of logic processing of each lower element are stored for each sensor 114. For example, in FIG. 6, when the sensor 114 is a microphone, the lower elements include music, conversational sound (single), conversational sound (several), silence, wave sound, and the like. It is stored in the areas A1, A2, A3, A4, A5, etc. For example, the control unit 111 performs logical processing of various sub-elements on the measurement value measured by the microphone, and adapts each sub-element such as “music is ringing” or “one person is speaking”. An index indicating the degree is calculated. Then, the control unit 111 determines a lower element indicated by the measured value of the sound environment element based on the calculated index. The subordinate elements of the voice environmental element are music, conversation sound (single), conversation sound (several), silence, wave sound, etc., but are not limited to this. It preferably includes sub-elements such as sound, train departure notification sound, train door opening / closing sound, outdoor music, and cicada sound.

  When the sensor 114 is an acceleration sensor, for example, the lower elements include stationary, acceleration / deceleration (car), acceleration / deceleration (walking), vibration (operation), etc., and the logic processing program of each lower element is the area B1. , B2, B3, B4, etc. For example, the control unit 111 performs logical processing of various sub-elements on the measurement value measured by the acceleration sensor, and adapts each sub-element such as “still in a state” or “in a car”. An index indicating the degree is calculated. Then, the control unit 111 determines a lower element indicated by the measured value of the environmental element of acceleration based on the calculated index. The subordinate elements of the environmental element of acceleration are stationary, acceleration / deceleration (car), acceleration / deceleration (walking), vibration (operation), etc., but not limited thereto, subelements such as in-vehicle vibration It is preferable to include.

  In the case where the sensor 114 is an electronic gyro, for example, the lower elements are stationary, the direction of travel is changed, and the logic processing program for each lower element is stored in the areas C1, C2, and the like. For example, the control unit 111 performs logic processing of various sub-elements on the measurement value measured by the electronic gyro, and adapts the sub-elements such as “still in a state” and “in a car”. An index indicating the degree is calculated. And the control part 111 determines the low-order element which the measured value of the environmental element of a direction shows based on the calculated parameter | index. In addition, although the subordinate elements of the environmental element in the direction are set to be stationary or the traveling direction is changed, the present invention is not limited thereto, and preferably includes subordinate elements such as a constant traveling direction.

  In the case where the sensor 114 is an illuminance sensor, for example, the lower elements include room lighting (room), room lighting (inside the vehicle), sun, shade, etc. The logic processing program for each lower element is the area D1, D2, D3. Stored in D4 or the like. For example, the control unit 111 performs logic processing of various lower elements on the measurement value measured by the illuminance sensor, and indicates the fitness of each lower element such as “in the room” or “in the sun”. Calculate the indicator. And the control part 111 determines the low-order element which the measured value of the environmental element of illumination intensity shows based on the calculated parameter | index. The subordinate elements of the environmental element of illuminance are room lighting (room), room lighting (inside the vehicle), sun, shade, etc., but are not limited thereto, and it is preferable to include other subelements.

  When the sensor 114 is a temperature sensor, the lower elements include, for example, an indoor temperature, an outdoor temperature, and the like, and a logic processing program for each lower element is stored in the areas E1, E2, and the like. For example, the control unit 111 performs logic processing of various subelements on the measurement value measured by the temperature sensor, and indicates the fitness of each subelement such as “in the room” or “in the outdoors”. Calculate the indicator. And the control part 111 determines the low-order element which the measured value of the environmental element of temperature shows based on the calculated parameter | index. In addition, although the subelement of the environmental element of temperature was made into indoor temperature, outdoor temperature, etc., it is not limited to this, It is preferable that another subelement is included.

  As illustrated in FIG. 6, the terminal device 110 uses the communication unit 113 as one sensor 114. That is, since the communication unit 113 receives information of the communication station 130 with which the terminal device 110 is communicating, it can measure which communication station 130 the communication range of the terminal device 110 is in. Therefore, for example, the communication unit 113 outputs information on the communication station 130 with which the terminal device 110 is communicating as a measurement value to the control unit 111. For example, based on the information on the communication station 130 received from the communication unit 113, the control unit 111 may be in a stationary state indicating that the terminal device 110 is within the communication range of the same communication station 130, A state where the communication station 130 is moved by a car or the like is detected. Hereinafter, the environmental element measured by the communication station 130 is referred to as “communication station movement”.

  In the logic table 40 shown in FIG. 6, when the sensor 114 is the communication unit 113, the lower elements include, for example, stationary, movement (low speed), movement (high speed), etc. Stored in areas F1, F2, F3, and the like. For example, the control unit 111 performs logical processing of various sub-elements on the measurement value measured by the communication unit 113, and “being stationary”, “walking”, or “riding in a car”. An index indicating the degree of fitness of each sub-element such as “is calculated. And the control part 111 determines the low-order element which the measured value of the environmental element of a communication station movement shows based on the calculated parameter | index. In addition, although the lower elements of the environmental elements of the communication station movement are stationary, movement (low speed), movement (high speed), etc., it is not limited to this, and it is preferable to include other lower elements.

  FIG. 7 shows an example of the search device 120 shown in FIG. Among the elements included in the search device 120 illustrated in FIG. 7, those having the same or similar functions as those of the search device 20 illustrated in FIG. 1 are denoted by the same reference numerals and description thereof is omitted.

  The communication IF (Interface) unit 25 receives a frame signal in the Ethernet (registered trademark) format or the like from the network NW, and outputs data included in the received frame signal to the control unit 21. Further, the communication IF unit 25 stores data such as a control instruction output from the control unit 21 in a frame signal, and outputs the stored frame signal to the network NW.

  The storage unit 24 stores, for example, an element table 30a having a reference value for each environmental element that defines a predetermined environment, together with the search program.

  FIG. 8 shows an example of the element table 30a. The element table 30a shown in FIG. 8 is a sub-element of each of the environmental elements that define each environment, such as voice, acceleration, direction, illuminance, temperature, and communication station movement, for each of a plurality of environments in which the terminal device 110 may be placed. (Upper stage), an area for storing the priority (middle stage) and the reference value (lower stage) of the measurement value. In FIG. 8, for example, “conference room”, “inside car (with music)”, “inside car (without music)”, “restaurant”, and “coast” are shown as a plurality of environments. In FIG. 8, for example, a microphone, an acceleration sensor, an electronic gyroscope, an illuminance sensor, a temperature sensor, and a communication unit 113 are shown as sensors 114 that measure each environmental element.

  For example, “conference room” indicates an environment in which the terminal device 110 is placed on a table or the like and one person speaks. Therefore, the lower elements included in the measured values of the environmental elements measured by the sensors 114 shown in the element table 30a are, for example, conversation sound (single), stationary, stationary, indoor lighting (room), indoor temperature, and stationary. . In the case of “conference room”, for example, since the terminal device 110 is placed on a table or the like, the priority of the environmental element of acceleration is set to the highest value. In addition, the reference value of each environmental element is set to, for example, the reference value a2, the reference value b1, the reference value c2, the reference value d1, the reference value e1, and the reference value f1, respectively.

  “In the car (with music)” indicates, for example, an environment in which driving is performed while playing music such as radio in the car. Therefore, the lower elements included in the measured values of the environmental elements measured by the sensors 114 shown in the element table 30a include, for example, music, acceleration / deceleration (car), traveling direction change, indoor lighting (inside the car), room temperature, and Move (high speed). In the case of “in the car (with music)”, the music being played in the car shows the characteristics of the environment in which the terminal device 110 is placed, so the priority of the environmental element of the voice is set to the highest value. The Further, the reference value of each environmental element is set to, for example, a reference value a1, a reference value b2, a reference value c2, a reference value d2, a reference value e1, and a reference value f3.

  “In the car (no music)” indicates, for example, an environment where a plurality of people are driving while talking in the car. Therefore, the lower elements included in the measured values of the environmental elements measured by the sensors 114 shown in the element table 30a are, for example, conversation sound (plural), acceleration / deceleration (car), direction change, indoor lighting (inside the car) , Indoor temperature and movement (high speed). In the case of “inside the car (no music)”, for example, since the movement of the car indicates the characteristics of the environment where the terminal device 110 is placed, the priority of the environmental element of acceleration is set to the highest value. The reference value of each environmental element is set to, for example, the reference value a3, the reference value b2, the reference value c2, the reference value d2, the reference value e1, and the reference value f3.

  “Restaurant” indicates, for example, an environment in which the terminal device 110 is operated while a plurality of people are talking. Therefore, the lower elements included in the measured values of the environmental elements measured by the sensor 114 shown in the element table 30a are, for example, conversation sound (plural), vibration, stationary, indoor lighting (room), indoor temperature, and stationary. In the case of “restaurant”, for example, since the conversation sound of a plurality of people indicates the characteristics of the environment in which the terminal device 110 is placed, the priority of the voice environment element is set to the highest value. In addition, the reference value of each environmental element is set to, for example, the reference value a3, the reference value b4, the reference value c2, the reference value d1, the reference value e1, and the reference value f1, respectively.

  “Coast” indicates, for example, an environment in which a user of the terminal device 110 operates the terminal device 110 while looking at the sea on the coast. Therefore, the lower elements included in the measured values of the environmental elements measured by the sensor 114 shown in the element table 30a are, for example, wave sound, vibration, stationary, sunlight, outdoor temperature, and stationary. In the case of “coast”, for example, the sound of the waves indicates the characteristics of the environment where the terminal device 110 is placed, so the priority of the environmental element of the voice is set to the highest value. In addition, the reference value of each environmental element is set to, for example, the reference value a5, the reference value b4, the reference value c1, the reference value d3, the reference value e2, and the reference value f1, respectively.

  The element table 30a illustrated in FIG. 8 is used to determine the environment of the terminal device 110 that has requested the search when the search device 120 receives a search request from the terminal device 110. For example, when the collection unit 22 of the search device 120 receives a search request from the terminal device 110, the measurement value of each environmental element measured by each sensor 114 of the request source terminal device 110 and the lower element indicated by each measurement value are displayed. Information is collected from the requesting terminal device 110. For example, the collection unit 22 compares the measured values of the environmental elements of the requesting terminal device 110 and the lower elements indicated by the measured values with the reference values and lower elements of the environmental elements of the element table 30a. The environment of the requesting terminal device 110 is determined.

  Note that the search device 120 may cause the requesting terminal device 110 to determine the environment. For example, when receiving a search request from the terminal device 110, the control unit 21 generates data including a plurality of environments shown in the first column of the element table 30a, and transmits the generated data to the requesting terminal device 110. To do. The control unit 111 of the request source terminal device 110 receives the generated data via the network NW and the communication station 130, and displays a display unit such as a liquid crystal monitor that includes a list of a plurality of environments included in the received data. To display. The control unit 111 of the request source terminal device 110 selects its own environment from the displayed list based on an operation instruction from the user, and transmits the selected environment to the search device 120. The control unit 21 of the search device 120 receives the selected environment via the communication IF unit 25 and determines the received environment as the environment of the requesting terminal device 110.

  Here, the process in which the collection unit 22 determines the environment of the requesting terminal device 110 based on the measured values of the environmental elements of the requesting terminal device 110 and the element table 30a is referred to as “automatic setting”. . On the other hand, the process in which the control unit 21 determines the environment of the requesting terminal device 110 based on the selection of the user of the requesting terminal device 110 is referred to as “manual setting”.

  9 and 10 show an example of search processing of the search system 200 shown in FIG. The operations illustrated in FIGS. 9 and 10 are realized, for example, when the control unit 21 of the search device 120 executes a search program. Steps S100 to S107 show the operation of the terminal device 110a (1), steps S200 to S210 show the operation of the search device 120, and steps S300 and S301 show the terminal devices 110a (2) to 110a (n). Shows the operation.

  9 and 10 show processing when the terminal device 110a (1) requests the search device 120 to perform a search. However, when the terminal devices 110a (2) -110a (n), 110b (1) -110b (m) request the search to the search device 120, the same or similar processing shown in FIGS. 9 and 10 is performed. Is called. Therefore, the description about the process when the terminal devices 110a (2) -110 (n), 110b (1) -110b (m) request the search to the search device 120 is omitted.

  Further, the search device 120 searches for the terminal device 110 in the vicinity of the requesting terminal device 110. That is, for example, when the requesting terminal device 110 is within the communication range of the communication station 130a, the search device 120 performs a search process using the terminal device 110 within the communication range of the communication station 130a as a search target. On the other hand, for example, when the requesting terminal device 110 is in the communication range of the communication station 130b, the search device 120 performs a search process with the terminal device 110 in the communication range of the communication station 130b as a search target.

  In step S100, the control unit 111 of the terminal device 110a (1), for example, with respect to the search device 120 based on an operation instruction by the user, a terminal that is in the same or equivalent environment as the environment of the terminal device 110a (1). A program for requesting a search for the device 110 is executed. In order to determine the environment of the terminal device 110a (1), the control unit 111 displays selection buttons for “automatic setting” and “manual setting” on a display unit such as a built-in liquid crystal monitor, for example. Request selection and have any setting selected.

  In step S101, the control unit 111 determines whether “automatic setting” is selected by the user. When “automatic setting” is selected, the control unit 111 proceeds to the process of step S102 (YES side). On the other hand, when “manual setting” is selected, the control unit 111 proceeds to the process of step S103 (NO side).

  In step S <b> 102, the control unit 111 transmits the “automatic setting” signal selected in step S <b> 100 to the search device 120 together with the search request signal via the communication unit 113. The control unit 111 proceeds to the process of step S104.

  In step S <b> 103, the control unit 111 transmits the “manual setting” signal selected in step S <b> 100 together with the search request signal to the search device 120 via the communication unit 113. The control unit 111 proceeds to the process of step S105.

  In step S200, the control unit 21 of the search device 120 receives a frame signal including a search request from the terminal device 110a (1) via the communication IF unit 25. The control unit 21 determines whether or not the received frame signal includes an “automatic setting” signal together with the search request. When the “automatic setting” signal is included, the control unit 21 proceeds to the process of step S201 (YES side). On the other hand, when the “manual setting” signal is included, the control unit 21 proceeds to the process of step S203 (NO side).

  In step S201, the collection unit 22 determines the environment of the terminal device 110a (1), and transmits the measured values of the environmental elements measured by the sensors 114 of the terminal device 110a (1) to the terminal device 110a (1). ) To request.

  In step S104, the control unit 111 of the terminal device 110a (1) causes each sensor 114 to measure the environment of the space where the terminal device 110a (1) is placed in response to a request from the search device 120. Get time-series data of measured values. Based on the logic table 40, the control unit 111 performs logic processing of various sub-elements included in each environmental element on the acquired time-series data of each sensor 114, and the subordinates indicated by the measured values of the respective environmental elements Determine the elements. The control unit 111 transmits the calculated measurement value of each sensor 114 and information on lower elements indicated by each measurement value to the search device 120.

  In step S202, the control unit 21 of the search device 120 receives the frame signal including the measurement value of each sensor 114 and the information of the lower elements transmitted from the terminal device 110a (1). For example, the collection unit 22 compares the measured values and lower elements of each sensor 114 of the received requesting terminal device 110 with the reference values and lower elements of the environmental elements of the element table 30a, and compares the terminal device 110a (1 ) Environment. The control unit 21 proceeds to the process of step S205.

  In step S203, the control unit 21 generates data including a plurality of environments shown in the first column of the element table 30a, and outputs a frame signal including the generated data to the network NW addressed to the terminal device 110a (1). .

  In step S <b> 105, the control unit 111 of the terminal device 110 a (1) receives data including a plurality of environments from the search device 120. The control unit 111 displays the received data as a list of “conference room”, “inside car (with music)”, “inside car (without music)”, “restaurant”, “coast”, etc. To display. The control unit 111 selects the environment of the terminal device 110 a (1) from the displayed list based on an operation instruction from the user, and transmits the selected environment to the search device 120.

  In step S204, the control unit 21 of the search device 120 receives a frame signal including the selected environment from the terminal device 110a (1). The control unit 21 determines the received environment as the environment of the terminal device 110a (1).

  In step S205, the control unit 21 reads, from the element table 30a, the lower elements of each environmental element, the priority, and the reference value of the measurement value corresponding to the determined environment of the terminal device 110a (1).

  In step S206, for example, in the first loop, the collection unit 22 transmits the measurement value of the read lower element to the communication range of the communication station 130a in the environment element indicating the highest value in the read priority. Request to the terminal devices 110a (2) -110a (n). For example, when the environment of the terminal device 110a (1) determined in step S202 or step S204 is “in the car (with music)”, the element table 30a has a value with the highest priority set as the sound environment element. Show. Therefore, the collection unit 22 requests the terminal devices 110a (2) -110a (n) to transmit the measurement values of the subordinate elements of “music” as the sound environment elements. Note that when the requesting terminal device 110a (1) is in the communication range of the communication station 130b, the collection unit 22 transmits the measurement value to the terminal devices 110b (1) -110b (in the communication range of the communication station 130b. m).

  In step S300, the control unit 111 of the terminal device 110a (2) -110a (n) places the terminal device 110a (2) -110a (n) in the sensor 114 corresponding to the environmental element requested from the search device 120. Measure the space environment and obtain time-series data of measured values. Each control unit 111 applies the logical processing corresponding to the requested lower element to the time-series data obtained based on the logic table 40, and calculates the measured value of the requested lower element.

  In step S301, the control unit 111 of the terminal devices 110a (2) -110a (n) transmits the measurement value calculated in step S300 to the search device 120 via the communication station 130a.

  In step S207, the collection unit 22 of the search device 120 receives and collects frame signals including measurement values respectively measured by the terminal devices 110a (2) -110a (n). The collection unit 22 outputs the collected measurement values of the terminal devices 110a (2) -110a (n) to the search unit 23.

  In step S208, for example, the search unit 23 compares the received measurement value of each terminal device 110 with the reference value of the environmental element to be collected read from the element table 30a, and the measurement value is included in the reference range. The device 110 is extracted as a collection target of the collection unit 22.

  In step S209, the collection unit 22 determines whether the number of extracted terminal devices 110 is equal to or less than a predetermined value. When the number of extracted terminal devices 110 is equal to or less than the predetermined value, the collection unit 22 proceeds to the process of step S210 (YES side). On the other hand, the control part 121 transfers to the process (NO side) of step S206, when the number of the extracted terminal devices 110 is more than predetermined value. In step S206 and step S207, the collection unit 22 measures the subelements of the environmental element in which the highest priority value is set among the unmeasured environmental elements for the terminal device 110 extracted in step S208. Measure and collect values. In step S208, the search unit 23 compares the collected measurement values of the terminal devices 110 with the reference values of the environmental elements to be collected, and further extracts and extracts the terminal devices 10 whose measurement values are included in the reference range. To do.

  The predetermined value is stored in, for example, the storage unit 112 of the requesting terminal device 110a (1) or input based on an operation instruction by the user of the terminal device 110a (1), and a search request signal is received in step S101. At the same time, it may be transmitted to the search device 120 and set. Alternatively, the predetermined value may be stored in advance in the storage unit 24 of the search device 120.

  In step S210, the search unit 23 determines that the extracted terminal device 110 is in the same or equivalent environment as the environment of the terminal device 110a (1). The search unit 23 stores the extracted information of the terminal device 110 in the frame signal as a search result, and outputs the stored frame signal to the network NW.

  In step S <b> 106 illustrated in FIG. 9, the control unit 111 of the terminal device 110 a (1) receives the search result from the search device 120. For example, the control unit 111 lists the searched address of the terminal device 110 and the name of the owner of the terminal device 110 according to the degree of matching the received search result with the environment of the terminal device 110a (1). Display on the built-in LCD monitor.

  In step S <b> 107, the control unit 111 of the terminal device 110 a (1) selects the terminal device 110 to be linked based on an operation instruction from the user. For example, the control unit 111 establishes communication by connecting to the selected terminal device 110 via the communication unit 113 based on a communication standard such as UPnP or Bluetooth (registered trademark). Then, the control unit 111 performs cooperation processing such as sharing of conference materials, information on restaurants, sightseeing spots, etc., information exchange on social networks, and cooperative operations of games with the terminal device 110 that has established communication. Do.

  As described above, in this embodiment, the search device 120 collects the measurement values of the environmental elements from the terminal device 110 in order from the environmental element having the highest priority. As described above, the priority of each environmental element is set to a value indicating a higher priority as the number of terminal devices from which measurement values included in the reference range are obtained in the target environment, that is, as the narrowing effect is higher. Is done. Therefore, each time a measurement value is collected, the search device 120 extracts a terminal device 110 that may be in a predetermined environment based on the collected measurement value. The terminal device in the environment can be searched efficiently.

  Thereby, for example, even when a group of a plurality of users stops at a crowded service area or sightseeing spot, the terminal devices 110 of the plurality of users can be searched in a short time, and information sharing of the service area or sightseeing spot is possible. Etc. can be easily performed.

  In addition, since the terminal devices 110 to be searched are narrowed down in order from the environmental element with the highest priority and the terminal devices 110 that are not targeted are not involved in the subsequent processing, the terminal devices 110 and the search system 200 that are not targeted. The overall processing load can be reduced.

  Moreover, the collection part 22 of the search device 120 complete | finishes a search process, when the number of the searched terminal devices 110 becomes below a predetermined value. Thus, the collection unit 22 does not wastefully measure the terminal device 110 up to the measurement value of the environmental element with the lowest priority, and thus can further reduce the processing load of the search system 200.

  Furthermore, the user of the terminal device 110 can search for the desired terminal device 110 only by executing a search program and performing a simple operation of selecting “automatic setting” or “manual setting”.

  In this embodiment, the program that requests the search executed by the control unit 111 of the terminal device 110 is stored in the storage unit 112 alone, but is not limited thereto. For example, a search requesting program may be incorporated into a program that performs processing such as sharing of conference materials, sharing of information on restaurants, sightseeing spots, etc., exchanging information on social networks, and cooperative operations of games.

  In this embodiment, the collection unit 22 of the search device 120 performs the search process until the number of searched terminal devices 110 becomes a predetermined value or less. However, the present invention is not limited to this. For example, the collection unit 22 may collect the measurement values by causing the terminal device 110 to measure the measurement values of the environmental elements for which a predetermined priority is set. The predetermined priority is preferably stored in advance in the storage unit 112 of the requesting terminal device 110 or the storage unit 24 of the search device 120, for example. Alternatively, the predetermined priority may be input based on an operation instruction by a user of the requesting terminal device 110 and transmitted to the search device 120 together with a search request signal.

  In this embodiment, the terminal apparatus 110 transmits a signal of “automatic setting” or “manual setting” to the searching apparatus 120 together with a signal requesting the search, but the present invention is not limited to this. For example, when “automatic setting” is selected, the terminal device 110 obtains information on the measured values of each environmental element measured by each sensor 114 and information on the lower elements of each measured value together with a signal requesting the search. 120 may be transmitted. For example, the terminal device 110 stores data of a plurality of environments indicated in at least the first column of the element table 30a in the storage unit 112. When “manual setting” is set by the user, the terminal device 110 displays a list of a plurality of environments to be stored on a display unit such as a built-in liquid crystal monitor, and allows the user to select the environment of the terminal device 110 and perform a search. The selected environment may be transmitted to the search device 120 together with the requested signal. As a result, the search system 200 can omit the processing of step S104, step S105, step S201, and step S203, and can increase the processing speed.

  In this embodiment, the terminal device 110 includes the sensors 114 (1) to 114 (k), but is not limited to this. For example, the sensor 114 included in each terminal device 110 may be different. For example, when the requesting terminal device 110 does not have an acceleration sensor and the search target terminal device 110 has an acceleration sensor, the collection unit 22 of the search device 120 starts from the search target terminal device 110 based on the element table 30a. The measurement value of the acceleration sensor can be acquired. Thereby, even if the sensor 114 is different for each terminal device 110, the search unit 23 can accurately extract the search target terminal device 110 in the same or equivalent environment as the search source terminal device 110. it can.

  In this embodiment, the terminal device 110 causes the sensor 114 to measure the measurement values of each environmental element, but is not limited thereto. For example, the terminal device 110 may include a receiving unit that receives a GPS (Global Positioning System) signal. And the control part 111 may acquire the speed | rate, direction, etc. of the terminal device 110 as a measured value based on the information of the position of the terminal device 110 calculated | required from the received GPS signal. Moreover, the control part 111 may transmit the information of the calculated | required position to the network NW, and may acquire the weather, temperature, etc. which are received via the network NW as a measured value. Furthermore, the control unit 111 of the terminal device 110 may acquire the date, time, and the like as measurement values from a built-in clock. Thereby, the terminal device 110 can acquire the measured value of the environmental element based on the information acquired from the GPS signal or the network NW even when the terminal device 110 does not have an acceleration sensor or an electronic gyro. The terminal device 110 can search for a desired terminal device 110 with more versatility than in the past.

  FIG. 11 shows still another embodiment of the search system and the search apparatus. FIG. 11 shows an embodiment when the terminal device 210 operates as a search device. 11 having the same or similar functions as those of the search system 200 shown in FIG. 4 are denoted by the same reference numerals and description thereof is omitted. The terminal device 210 (210a (1) -210a (n), 210b (1) -210b (m)) is a portable terminal that can be carried by a user such as a mobile phone, a smartphone, a tablet terminal, or a game terminal. The terminal devices 210a (1) -210a (n) are within the communication range of the communication station 130a, which is a mobile phone base station or an access point of a communication standard such as a wireless LAN or Wi-Fi. On the other hand, the terminal devices 210b (1) -210b (m) are within the communication range of the communication station 130b, which is a mobile phone base station or an access point of a communication standard such as a wireless LAN or Wi-Fi.

  FIG. 12 shows an example of the terminal device 210 shown in FIG. 12 having the same or similar functions as those of the terminal device 110 shown in FIG. 5 are denoted by the same reference numerals and description thereof is omitted.

  For example, the control unit 111a is a microprocessor or the like that controls each unit of the terminal device 210 by executing a program stored in the storage unit 112a such as a ROM. In addition, the control unit 111a is configured so that, for example, the terminal device 210 operates as a search device by executing a search program stored in the storage unit 112 based on a user operation instruction. It functions as 116.

  The collection unit 115 collects the measured values of the environmental elements from the search target terminal device 210 in the order of the priority set for each environmental element according to the environment of the terminal device 210.

  Each time the measurement value is collected by the collection unit 115, the search unit 116 compares the collected measurement value of the environmental element of each terminal device 210 with the reference value of the environmental element. For example, the search unit 116 sequentially extracts the terminal devices 210 in which the measurement values of the respective terminal devices 210 are included in the reference range as the next collection target terminal device of the collection unit 115, Search for the terminal device 210 in

  The storage unit 112a stores the element table 30a illustrated in FIG. 8 together with the search program and the logical table 40 illustrated in FIG.

  Further, for example, when the control unit 111a receives an instruction of “automatic setting” together with a search request instruction based on an operation instruction by the user, the control unit 111a measures the environment of the space where the terminal device 210 is placed in each sensor 114. To obtain time-series data of measurement values of each environmental element. Based on the logical table 40 stored in the storage unit 112a, the control unit 111a performs logical processing of various sub-elements included in each environmental element on the acquired time series data of each sensor 114, and each environment Determine the lower element indicated by the measured value of the element. The control unit 111a determines the environment of the terminal device 210 based on the comparison between the measured value of each environmental element calculated and the lower element indicated by each measured value and the reference value and lower element of each environmental element in the element table 30a. decide.

  FIG. 13 shows an example of search processing of the search system 300 shown in FIG. The operation illustrated in FIG. 13 is realized, for example, when the control unit 111a of the terminal device 210a (1) executes a search program and operates as a search device. Steps S400 to S408 indicate the operation of the terminal device 210a (1), and steps S500 and S501 indicate the operation of 210a (2) -210a (n).

  FIG. 13 illustrates a case where the terminal device 210a (1) operates as a search device based on a user operation instruction. However, even when the terminal devices 210a (2) -210a (n) and 210b (1) -210b (m) operate as search devices, the same or similar processing shown in FIG. 13 is performed. Therefore, the description about the search process by the terminal devices 210a (2) -210a (n), 210b (1) -210b (m) is omitted.

  In step S400, the control unit 111a of the terminal device 210a (1) executes a search program based on an operation instruction from the user. In order to determine the environment of the terminal device 210a (1), the control unit 111a displays “automatic setting” and “manual setting” selection buttons on a display unit such as a built-in liquid crystal monitor, for example. Request selection and have any setting selected.

  In step S401, for example, when “automatic setting” is selected, the control unit 111a causes each sensor 114 to measure the environment of the space in which the terminal device 210a (1) is placed, and the time series of the measurement values of each environmental element Get the data. Based on the logic table 40, the control unit 111a performs logic processing on the acquired time series data of each sensor 114 according to the lower element of each environmental element, and displays the lower element indicated by the measured value of each environmental element. decide. The control unit 111a determines the terminal device 210a (1) based on a comparison between the calculated measured value of each environmental element and the lower element indicated by each measured value, and the reference value and lower element of each environmental element in the element table 30a. Determine the environment.

  On the other hand, when “manual setting” is selected, the control unit 111a displays, for example, a list of a plurality of environments shown in the first column of the element table on a display unit such as a built-in liquid crystal monitor. The control unit 111a selects and determines the environment of the terminal device 210a (1) from the displayed list of a plurality of environments based on an operation instruction from the user.

  In step S402, the control unit 111a reads, from the element table 30a, the lower elements of each environment element corresponding to the determined environment of the terminal device 210a (1), the priority, and the measured value reference value.

  In step S403, for example, in the first loop, the collection unit 115 sends the measurement value of the read lower element to the communication range of the communication station 130a in the environment element indicating the highest value in the read priority. Terminal devices 210a (2) -210a (n) are requested respectively. The collecting unit 115 transmits the measurement value when the requesting terminal device 210a (1) is in the communication range of the communication station 130b, and transmits the measurement value to the terminal devices 210b (1) to 210b (in the communication range of the communication station 130b). m).

  In step S500, the control unit 111a of the terminal device 210a (2) -210a (n) sends the terminal device 210a (2) -210a (n) to the sensor 114 corresponding to the environmental element requested from the terminal device 210a (1). Measure the environment of the space where is placed, and obtain time-series data of measured values. Based on the logical table 40, each control unit 111a applies the logical processing corresponding to the requested lower element to the acquired time series data, and calculates the measured value of the requested lower element.

  In step S501, the control unit 111a of the terminal device 210a (2) -210a (n) transmits the measurement value calculated in step S500 to the terminal device 210a (1) via the communication station 130a.

  In step S404, the collection unit 115 of the terminal device 210a (1) receives and collects frame signals including measurement values respectively measured by the terminal devices 210a (2) -210a (n). The collection unit 115 outputs the collected measurement values of the terminal devices 210a (2) -210a (n) to the search unit 116.

  In step S405, for example, the search unit 116 compares the received measurement value of each terminal device 210 with the reference value of the environmental element to be collected read from the element table 30a, and the measurement value is included in the reference range. The device 210 is extracted as a collection target of the collection unit 115.

  In step S406, the collection unit 115 determines whether or not the measurement values of the environmental elements for which a predetermined priority is set have been collected. For example, when the collection unit 115 has collected up to the measurement value of the environmental element for which a predetermined priority such as the top three is set, the process proceeds to the process of step S407 (YES side). On the other hand, when the collection unit 115 has not collected the measured values of the environmental elements for which the predetermined priority is set, the collection unit 115 proceeds to the process of step S403 (NO side). In step S403 and step S404, the collection unit 115 measures the lower elements of the environmental elements for which the highest priority is set among the unmeasured environmental elements for the terminal device 210 extracted in step S405. Measure and collect values. In step S405, the search unit 116 compares the collected measurement values of the terminal devices 210 with the reference values of the environmental elements to be collected, and further narrows down and extracts the terminal devices 10 whose measurement values are included in the reference range. To do.

  The predetermined priority may be stored in advance in the storage unit 112a of the terminal device 210a (1), for example. The predetermined priority may be input based on an operation instruction from the user of the terminal device 210a (1).

  In step S407, the search unit 116 determines that the extracted terminal device 210 is in the same or equivalent environment as the environment of the terminal device 210a (1). For example, the control unit 111a incorporates the extracted address of the terminal device 210 and the name of the owner of the terminal device 210 according to the degree of matching the search result with the environment of the terminal device 210a (1). Displayed on a display unit such as a liquid crystal monitor.

  In step S408, the control unit 111a selects at least one terminal device 210 to be linked based on an operation instruction from the user. For example, the control unit 111a establishes communication by connecting to the selected terminal device 210 via the communication unit 113 based on a communication standard such as UPnP or Bluetooth. Then, the control unit 111a performs cooperation processing such as sharing of conference materials, information on restaurants, sightseeing spots, etc., information exchange on social networks, and game cooperation operations with the terminal device 210 that has established communication. Do.

  As described above, in this embodiment, the terminal device 210 collects the measured values of the environmental elements from the terminal device 210 in order from the environmental element with the highest priority. As described above, the priority of each environmental element is set to a value indicating a higher priority as the number of terminal devices from which measurement values included in the reference range are obtained in the target environment, that is, as the narrowing effect is higher. Is done. Therefore, each time a measurement value is collected, the terminal device 210 extracts a terminal device 210 that may be in a predetermined environment based on the collected measurement value, so that the terminal device 210 has a predetermined environment compared to the conventional case. Can be searched efficiently.

  Thereby, for example, even when a group of a plurality of users stops at a crowded service area or a sightseeing spot, the terminal devices 210 of the plurality of users can be searched in a short time, and information on the service area or the sightseeing spot is shared. Etc. can be easily performed.

  In addition, since the terminal devices 210 to be searched are narrowed down in order from the environmental element with the highest priority and the terminal devices 210 that are not included are not involved in the subsequent processing, the terminal devices 210 and the search system 300 that are not included in the search. The overall processing load can be reduced.

  Further, when the collection unit 115 has collected up to the measurement value of the environmental element for which the predetermined priority is set, the collection unit 115 ends the search process. As a result, the collection unit 115 does not wastefully measure the terminal device 210 up to the measurement value of the environmental element with the lowest priority, thereby further reducing the processing load of the search system 300.

  Furthermore, the user of the terminal device 210 can search for the desired terminal device 210 only by executing a search program and performing a simple operation of selecting “automatic setting” or “manual setting”.

  In this embodiment, the search program of the terminal device 210 is stored alone in the storage unit 112a. However, the present invention is not limited to this. For example, the search program may be incorporated in a program that performs processing such as sharing conference materials, sharing information on restaurants, sightseeing spots, etc., exchanging information on social networks, and cooperative operations of games.

  In this embodiment, the control unit 111a of the terminal device 210a (1) performs the search process until the measurement value of the environmental element for which the predetermined priority is set is collected. However, the present invention is not limited to this. For example, the collection unit 115 may end the search process when the number of searched terminal devices becomes a predetermined value or less. For example, the predetermined value may be stored in advance in the storage unit 112a of the terminal device 210, or may be input based on an operation instruction of the user of the terminal device 210.

  In this embodiment, the communication between the terminal devices 210 is performed via the communication station 130, but is not limited thereto. For example, the terminal device 210 may directly communicate with a communication standard such as UPnP or Bluetooth without using the communication station 130. In this case, it is preferable that the control unit 111a of the terminal device 210 performs a search process on the terminal device 210 within a range where communication can be performed according to standards such as UPnP and Bluetooth. In step S408, the control unit 111a of the terminal device 210 preferably maintains communication with the selected terminal device 210 according to a communication standard such as UPnP or Bluetooth.

  In this embodiment, the terminal device 210 includes the sensors 114 (1) to 114 (k), but is not limited thereto. For example, the sensor 114 included in each terminal device 210 may be different. For example, when the search source terminal device 210 has no acceleration sensor and the search target terminal device 210 has an acceleration sensor, the collection unit 115 of the search source search device 210 uses the element table 30a to search for the search target terminal. Measurement values of the acceleration sensor can be acquired from the device 210. Accordingly, the extraction unit 115 can accurately extract the search target terminal device 210 in the same or equivalent environment as the search source terminal device 210 even when the sensor 114 is different for each terminal device 210. it can.

  In this embodiment, the terminal device 210 causes the sensor 114 to measure the measurement values of the environmental elements, but is not limited thereto. For example, the terminal device 210 may include a receiving unit that receives a GPS signal. And the control part 111a may acquire the speed, direction, etc. of the terminal device 210 as a measured value based on the information of the position of the terminal device 210 calculated | required from the received GPS signal. Moreover, the control part 111a may transmit the information of the calculated | required position to the network NW, and may acquire the weather, temperature, etc. which are received via the network NW as a measured value. Furthermore, the control unit 111a of the terminal device 210 may acquire the date, time, and the like as measurement values from a built-in clock. Thereby, even when the terminal device 210 does not have an acceleration sensor or an electronic gyro, the terminal device 210 can acquire the measurement value of the environmental element based on the GPS signal or the information acquired from the network NW. The terminal device 210 can search for a desired terminal device 210 with more versatility than in the past.

  From the above detailed description, features and advantages of the embodiments will become apparent. This is intended to cover the features and advantages of the embodiments described above without departing from the spirit and scope of the claims. Also, any improvement and modification should be readily conceivable by those having ordinary knowledge in the art. Therefore, there is no intention to limit the scope of the inventive embodiments to those described above, and appropriate modifications and equivalents included in the scope disclosed in the embodiments can be used.

Regarding the above embodiment, the following additional notes are disclosed.
(Appendix 1)
A plurality of terminal devices;
Collecting feature quantities of a plurality of elements that determine the environment in which each terminal device is placed, from the plurality of terminal devices in order of priority indicating a high degree of narrowing effect set in each element that defines a predetermined environment A collecting department to
Each time the feature value is collected by the collection unit, the collected feature value of each terminal device is compared with a reference range, and the collected terminal device is included in the reference range. A search device that includes a search unit that extracts a plurality of terminal devices and searches for the terminal device in the predetermined environment from the plurality of terminal devices;
A search system comprising:
(Appendix 2)
In the search system according to attachment 1,
In the plurality of elements, priority is set for each of the plurality of predetermined environments,
The collection unit, when receiving a search request from each of the terminal devices, determines an environment in which the terminal device that requested the search is placed as the predetermined environment, and the plurality of the determined predetermined environments A search system characterized by using element priorities.
(Appendix 3)
In the search system described in Appendix 2,
The collection unit collects feature values of the plurality of elements from the terminal device that requested the search, and the terminal device that requested the search is placed based on the collected feature values of the plurality of elements. A search system characterized by determining the environment.
(Appendix 4)
In the search system according to any one of supplementary notes 1 to 3,
The collection system ends the processing when the number of extracted terminal devices becomes a predetermined value or less.
(Appendix 5)
In the search system according to any one of appendix 1 to appendix 4,
The collection system terminates processing when collecting the feature amount of an element for which a predetermined priority is set in the extracted terminal device.
(Appendix 6)
The plurality of terminal devices in the order of the priority indicating the high degree of the narrowing-down effect set in each element that defines a predetermined environment for the feature amounts of the plurality of elements that define the environment in which the plurality of terminal devices are placed A collection unit to collect from
Each time the feature value is collected by the collection unit, the collected feature value of each terminal device is compared with a reference range, and the collected terminal device is included in the reference range. A search unit that extracts a plurality of terminal devices as a collection target and searches for the terminal devices in the predetermined environment from the plurality of terminal devices;
A search device comprising:
(Appendix 7)
In the search device according to attachment 6,
In the plurality of elements, priority is set for each of the plurality of predetermined environments,
The collection unit, when receiving a search request from each of the terminal devices, determines an environment in which the terminal device that requested the search is placed as the predetermined environment, and the plurality of the determined predetermined environments A search device characterized by using the priority of an element.
(Appendix 8)
In the search device according to attachment 7,
The collection unit collects feature values of the plurality of elements from the terminal device that requested the search, and the terminal device that requested the search is placed based on the collected feature values of the plurality of elements. A search device characterized by determining an environment.
(Appendix 9)
In the search device according to any one of appendix 6 to appendix 8,
The collection device ends the processing when the number of the extracted terminal devices becomes a predetermined value or less.
(Appendix 10)
In the search device according to any one of appendix 6 to appendix 9,
The collection device terminates processing when collecting the feature amount of an element for which a predetermined priority is set in the extracted terminal device.
(Appendix 11)
The plurality of terminal devices in the order of the priority indicating the high degree of the narrowing-down effect set in each element that defines a predetermined environment for the feature amounts of the plurality of elements that define the environment in which the plurality of terminal devices are placed Collected from
Each time the feature amount is collected by the collection process, the collected feature amount of each terminal device is compared with a reference range, and the collected terminal device is included in the reference range. Extracting as a collection target of the collection process, and searching for a terminal device in the predetermined environment from the plurality of terminal devices;
A search program that causes a computer to execute processing.
(Appendix 12)
In the search program according to attachment 11,
In the plurality of elements, priority is set for each of the plurality of predetermined environments,
In the collection process, when a search request is received from each terminal device, the environment in which the terminal device that requested the search is placed is determined as the predetermined environment, and the plurality of determined predetermined environments are determined. A search program characterized by using the priority of elements.
(Appendix 13)
In the search program described in appendix 12,
The collection process includes collecting the feature quantities of the plurality of elements from the terminal apparatus that has requested the search, and placing the terminal apparatus that has requested the search based on the collected feature quantities of the plurality of elements. A search program characterized by determining the environment.
(Appendix 14)
In the search program according to any one of appendix 11 to appendix 13,
The collection program terminates the processing when the number of extracted terminal devices becomes a predetermined value or less.
(Appendix 15)
In the search program according to any one of appendix 11 to appendix 14,
The retrieval program according to claim 1, wherein the collection process ends when the extracted feature values of elements having a predetermined priority set in the terminal device are collected.
(Appendix 16)
The plurality of terminal devices in the order of the priority indicating the high degree of the narrowing-down effect set in each element that defines a predetermined environment for the feature amounts of the plurality of elements that define the environment in which the plurality of terminal devices are placed Collected from
Each time the feature amount is collected by the collection process, the collected feature amount of each terminal device is compared with a reference range, and the collected terminal device is included in the reference range. Extracting as a collection target of the collection process, and searching for a terminal device in the predetermined environment from the plurality of terminal devices;
A search method characterized by that.
(Appendix 17)
In the search method according to attachment 16,
In the plurality of elements, priority is set for each of the plurality of predetermined environments,
In the collection process, when a search request is received from each terminal device, the environment in which the terminal device that requested the search is placed is determined as the predetermined environment, and the plurality of determined predetermined environments are determined. A search method characterized by using the priority of elements.
(Appendix 18)
In the search method according to attachment 17,
The collection process includes collecting the feature quantities of the plurality of elements from the terminal apparatus that has requested the search, and placing the terminal apparatus that has requested the search based on the collected feature quantities of the plurality of elements. A search method characterized by determining an environment.
(Appendix 19)
In the search method according to any one of appendix 16 to appendix 18,
The collection process ends when the number of the extracted terminal devices becomes a predetermined value or less.
(Appendix 20)
In the search method according to any one of appendix 16 to appendix 18,
The collection method is characterized in that the processing is terminated when the extracted feature values of elements having a predetermined priority set in the terminal device are collected.

10 (1) -10 (n), 110a (1) -110a (n), 110b (1) -110b (m), 210a (1) -210a (n), 210b (1) -210b (m) ... Terminal device; 20, 120 ... search device; 21, 111, 111a ... control unit; 22, 115 ... collection unit; 23, 116 ... search unit; 24, 112, 112a ... storage unit; 113 ... communication unit; ) -114 (k) ... sensor; 123 ... communication IF unit; 130a, 130b ... communication station; NW ... network; 100, 200, 300 ... search system

Claims (8)

A plurality of terminal devices;
Collecting feature quantities of a plurality of elements that determine the environment in which each terminal device is placed, from the plurality of terminal devices in order of priority indicating a high degree of narrowing effect set in each element that defines a predetermined environment A collecting department to
Each time the feature value is collected by the collection unit, the collected feature value of each terminal device is compared with a reference range, and the collected terminal device is included in the reference range. A search device that includes a search unit that extracts a plurality of terminal devices and searches for the terminal device in the predetermined environment from the plurality of terminal devices;
A search system comprising: The search system according to claim 1,
In the plurality of elements, priority is set for each of the plurality of predetermined environments,
The collection unit, when receiving a search request from each of the terminal devices, determines an environment in which the terminal device that requested the search is placed as the predetermined environment, and the plurality of the determined predetermined environments A search system characterized by using element priorities. The search system according to claim 2,
The collection unit collects feature values of the plurality of elements from the terminal device that requested the search, and the terminal device that requested the search is placed based on the collected feature values of the plurality of elements. A search system characterized by determining the environment. The search system according to any one of claims 1 to 3,
The collection system ends the processing when the number of extracted terminal devices becomes a predetermined value or less. The search system according to any one of claims 1 to 3,
The collection system terminates processing when collecting the feature amount of an element for which a predetermined priority is set in the extracted terminal device. The plurality of terminal devices in the order of the priority indicating the high degree of the narrowing-down effect set in each element that defines a predetermined environment for the feature amounts of the plurality of elements that define the environment in which the plurality of terminal devices are placed A collection unit to collect from
Each time the feature value is collected by the collection unit, the collected feature value of each terminal device is compared with a reference range, and the collected terminal device is included in the reference range. A search unit that extracts a plurality of terminal devices as a collection target and searches for the terminal devices in the predetermined environment from the plurality of terminal devices;
A search device comprising: The plurality of terminal devices in the order of the priority indicating the high degree of the narrowing-down effect set in each element that defines a predetermined environment for the feature amounts of the plurality of elements that define the environment in which the plurality of terminal devices are placed Collected from
Each time the feature amount is collected by the collection process, the collected feature amount of each terminal device is compared with a reference range, and the collected terminal device is included in the reference range. Extracting as a collection target of the collection process, and searching for a terminal device in the predetermined environment from the plurality of terminal devices;
A search program that causes a computer to execute processing. The plurality of terminal devices in the order of the priority indicating the high degree of the narrowing-down effect set in each element that defines a predetermined environment for the feature amounts of the plurality of elements that define the environment in which the plurality of terminal devices are placed Collected from
Each time the feature amount is collected by the collection process, the collected feature amount of each terminal device is compared with a reference range, and the collected terminal device is included in the reference range. Extracting as a collection target of the collection process, and searching for a terminal device in the predetermined environment from the plurality of terminal devices;
A search method characterized by that.

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