WO2016195109A1

WO2016195109A1 - Communication detection method and recording medium recording communication detection program

Info

Publication number: WO2016195109A1
Application number: PCT/JP2016/066704
Authority: WO
Inventors: 伊藤　守
Original assignee: 株式会社コーチ・エィ
Priority date: 2015-06-02
Filing date: 2016-05-30
Publication date: 2016-12-08
Also published as: JP2016224795A; JP5872090B1

Abstract

A communication detection method wherein, when inter-terminal communication data for which the reception strength is equal to or greater than a prescribed threshold value exists multiple times (for example, twice) in a time included in a predetermined minimum shared time, it is determined that communication has started, and when inter-terminal communication data for which the reception strength is equal to or greater than a prescribed threshold value does not exist multiple times (for example, twice) in a time included in a predetermined minimum unshared time, it is determined that communication has ended.

Description

COMMUNICATION DETECTION METHOD AND RECORDING MEDIUM CONTAINING COMMUNICATION DETECTION PROGRAM

Cross-reference of related applications

This application claims priority based on Japanese Patent Application No. 2015-112138 filed on June 2, 2015. The disclosure of the patent application is incorporated herein by reference.

The present invention relates to a technique for detecting a communication state between a plurality of target persons.

2. Description of the Related Art In recent years, a technique called coaching has been attracting attention that encourages the subject to be aware of his / her problems by performing questions such as asking questions and communicating appropriately, such as feedback, and realizes spontaneous behavioral change. Coaching does not instruct specific actions to the target as in general guidance / education, nor does it seek a specific solution through dialogue like consulting. To the last, the target person thinks himself / herself with the question from the coach and the like, and tries to solve the problem. Therefore, the degree of satisfaction of the target person is much higher than that of the conventional method, and therefore, a high degree of feasibility is expected, and as a result, a remarkable effect can be realized.
Such coaching is also widely used in the business field. For example, based on the status of communication between members within a company or other organization, the organization's managers or individual members are asked questions, feedback, etc. It is known that results such as performance improvement can be obtained.
The communication status used in coaching, etc., is most easily done through self-reporting by the organization members. However, in order to ensure more objectivity, it is better to monitor the communication status using a predetermined measuring device. Proposed.
For example, in Patent Document 1, an RFID (Radio Frequency Identification) tag is carried by an organization member, and sensors are placed at various locations in the organization to determine the absolute position of the member, and at close positions. Disclosure of the technology for grasping the communication situation, assuming that communication has occurred between the members determined to be. In addition to this, a technology for automatically carrying out wireless transmission / reception between adjacent devices is carried by each member, and when wireless transmission / reception occurs, it is determined that communication has been established between the members, and also in wireless transmission / reception. A technique has been proposed in which the distance between members is determined according to the reception intensity, and it is determined that communication has been established between the members determined to be close to each other.

JP 2007-094850 A

However, when the technique described in Patent Document 1 is implemented, the communication distance of RFID remains within a few centimeters to several tens of centimeters. It is necessary to provide a large number of sensors at intervals, and it is necessary to process an enormous amount of data acquired by such a large number of sensors. For this reason, the technique described in Patent Document 1 is not realistic from the viewpoint of implementation cost.
In addition, the conventional technique for determining a communication status using a device having an automatic wireless transmission / reception function has a problem that the positional relationship between devices, which is a premise of the communication status determination, cannot be accurately grasped. That is, although automatic wireless transmission / reception functions such as wireless LAN, infrared communication, and Bluetooth (registered trademark) used for general devices exhibit excellent functions for transmission / reception of electronic data, the distance between devices based on reception strength. Cannot be determined uniquely. Actually, the inventors have confirmed that, for example, in the case of a device having an automatic transmission / reception function based on the Bluetooth standard, the reception intensity between devices in which wireless transmission / reception has been established naturally depends on directivity in radio wave transmission. However, it has been found that it also depends on the mobile mode (whether it is placed on a desk or held by a member). That is, theoretically, the received strength decreases exponentially according to the distance between devices, but actually the received strength varies greatly from measurement to measurement even if the distance is the same. Is so large that it is not realistic to estimate the distance between devices only with the received intensity.
As described above, when determining the communication status using a device having an automatic wireless transmission / reception function, it is difficult to estimate the positional relationship between members only from the reception intensity, and correction processing using some algorithm However, in the prior art, there is no disclosure regarding such an algorithm.
The present disclosure has been made in view of the above problems, and in a technique for grasping a communication situation using a device having an automatic wireless transmission / reception function, in communication detection based on reception intensity, it is simple and improves detection accuracy. The purpose is to realize a communication detection method.

In order to achieve the above object, a communication detection method according to an aspect of the present disclosure is provided for a wireless communication terminal of a specific target person among the plurality of target persons in communication between wireless communication terminals attached to a plurality of target persons. The communication status between the target persons is detected based on the wireless reception strength detected multiple times at regular time intervals with respect to the signal transmitted from the wireless communication terminal of the target person different from the specific target person. In the communication detection method, the first communication time and the first communication time at which a difference value between the different times when wireless communication with a wireless reception intensity equal to or greater than a first threshold is made are equal to or less than a predetermined minimum sharing time If there is a second communication time that is later than In the determination step and in a time range delayed from the first communication time, different times at which wireless communication with a wireless reception intensity equal to or higher than the second threshold value, which is equal to the first threshold value, are made and the difference value between them Communication between target persons when there is no third communication time that is a value equal to or less than the minimum non-shared time and a fourth communication time that is delayed from the third communication time. And a communication end determination step for determining that has ended.
In order to achieve the above object, in the communication detection method according to one aspect of the present disclosure, a time delayed from the third communication time after the communication end determination step determines that the communication has ended in the above invention. The communication start determination step and the communication end determination step are newly repeated in the range, and are the total number of detected communication times and the difference value between the third communication time and the first communication time in each repetition. It further includes a communication status calculation step of calculating a communication time.
In order to achieve the above object, in the communication detection method according to one aspect of the present disclosure, in the above invention, the first and second threshold values are the wireless reception strength at the distance between terminals corresponding to the communicable distance. The minimum sharing time is set based on the first threshold, and the minimum non-sharing time is set based on the second threshold.
In order to achieve the above object, in the communication detection method according to one aspect of the present disclosure, in the above invention, the minimum sharing time is equal to or greater than the first threshold in the inter-terminal distance corresponding to the communicable distance. It is set based on the appearance probability of the wireless reception strength, and the minimum non-sharing time is set based on the appearance probability of the wireless reception strength equal to or greater than the second threshold in the distance between terminals corresponding to the communicable distance. Features.
In order to achieve the above object, in the communication detection method according to one aspect of the present disclosure, in the above invention, the frequency of the wireless communication is 2.4 GHz to 2.497 GHz, and the first threshold and Said 2nd threshold value is -65 dbm or more and -55 dbm or less, It is characterized by the above-mentioned.
In order to achieve the above object, in the communication detection method according to one aspect of the present disclosure, in the above invention, the minimum sharing time is 5 minutes or less, and the minimum non-sharing time is 5 minutes or more and 10 minutes or less. It is characterized by being.
A computer-readable recording medium according to one aspect of the present disclosure is received by a wireless communication terminal of a specific target person among the plurality of target persons in communication between wireless communication terminals attached to the plurality of target persons. The computer detects the communication status between the target persons based on the wireless reception intensity detected multiple times at regular time intervals for the signal transmitted from the wireless communication terminal of the target person different from the specific target person A computer-readable recording medium on which a communication detection program is recorded, wherein a difference value between each other at a predetermined minimum share among different times when wireless communication with a wireless reception intensity equal to or higher than a first threshold is made to the computer There is a first communication time that is less than the time and a second communication time that is delayed from the first communication time. A communication start determination step that determines that communication between target persons has started, and a radio that is equal to or greater than a second threshold value that is equal to the first threshold value in a time range that is delayed from the first communication time. Delayed in the third communication time and the third communication time, which are different times when the wireless communication of the reception strength is made, and whose difference value is equal to or less than the minimum non-shared time which is a value equal to or greater than the minimum shared time. And a communication end determination step for determining that communication between the target persons has ended when there is no fourth communication time.
In order to achieve the above object, a computer-readable recording medium according to one aspect of the present disclosure is the above-described invention. A step of repeatedly executing the communication start determination step and the communication end determination step newly in a time range delayed from the third communication time, the number of detected communications, the third communication time in each repetition, and the first And a communication status calculation step of calculating a communication time that is a total value of the difference values of the communication times.
In order to achieve the above object, a computer-readable recording medium according to one aspect of the present disclosure provides the computer according to the first aspect, wherein the first and second thresholds correspond to the communicable distance. A step of setting within a range of fluctuation of radio reception strength in a distance between terminals, a step of setting the minimum sharing time based on the first threshold, and a step of setting the minimum non-sharing time based on the second threshold And a setting step.
In order to achieve the above object, a computer-readable recording medium according to one aspect of the present disclosure is the computer-readable recording medium according to the above invention, wherein the minimum sharing time is a distance between terminals corresponding to a communicable distance. And setting the minimum unshared time based on the appearance probability of the radio reception strength equal to or greater than the first threshold in the inter-terminal distance corresponding to the communicable distance. The step of setting based on the appearance probability of is realized.
In order to achieve the above object, a computer-readable recording medium according to one aspect of the present disclosure is the computer according to the above invention, wherein the wireless communication frequency is 2.4 GHz to 2.497 GHz. On the other hand, the step of setting the first threshold value and the second threshold value to be −65 dbm or more and −55 dbm or less is realized.
In order to achieve the above object, in a computer-readable recording medium according to one aspect of the present disclosure, in the above invention, the minimum sharing time is set to 5 minutes or less and the minimum non-sharing time is set to the computer. The step of setting to 5 minutes or more and 10 minutes or less is realized.

According to the present disclosure, it is possible to identify the proximity state between persons carrying a device based on the reception intensity in a general device (such as a mobile phone) equipped with a wireless transmission / reception function, and maintain a state where the people are close to each other for a certain period of time. In view of the fact that communication is generally generated between persons during the process, an accurate communication status can be grasped based on the reception strength.

FIG. 1 is a schematic diagram illustrating a configuration of a communication detection system according to an embodiment.
FIG. 2 is a flowchart for explaining creation of communication data between terminals in the embodiment.
FIG. 3 is a flowchart for explaining communication detection in the embodiment.
FIG. 4 is a flowchart for explaining a specific example of communication detection in the embodiment.
FIG. 5 is a schematic diagram showing a configuration of a communication detection system in a modified example.

Hereinafter, a communication detection method according to an embodiment of the present disclosure will be described. The communication detection method according to the present embodiment includes a wireless transmission / reception function (Bluetooth (registered trademark) standard, ZigBee (registered trademark) standard, or wireless based on an improved version of these) mounted on a portable information terminal carried by the target person. ) To detect the communication status easily and with high accuracy.
FIG. 1 is a schematic diagram showing a configuration of a communication detection system for carrying out the communication detection method according to the present embodiment. As shown in FIG. 1, the communication detection system is based on wireless communication terminals 1a to 1n carried by a plurality of persons whose communication status is to be determined and data on the communication status output from the wireless communication terminal. It is comprised by the determination apparatus 2 which determines the presence or absence of the communication in between.
The wireless communication terminals 1a to 1n have at least a function of automatically performing wireless connection with other terminals within a transmission / reception possible range. In the present embodiment, the wireless transmission / reception function will be described using the Bluetooth standard as an example. However, the wireless transmission / reception function may have a wireless transmission / reception function by other methods such as a wireless LAN. Note that a preferable frequency band in wireless communication is the 2.4 GHz band, specifically, a frequency band of 2.4 GHz to 2.497 GHz, but other frequency bands may be used.
Further, the wireless communication terminals 1a to 1n have a function of outputting information (connection data) regarding wireless connection with other terminals. The connection data includes at least self identification information (self ID), identification information (partner ID) of the other party wirelessly connected, time, and reception strength value (RSSI value) in the wireless connection at the time.
Although dedicated terminals may be used as the wireless communication terminals 1a to 1n, in this embodiment, a program for realizing the above functions is installed in a general mobile phone or portable music player having a wireless communication function. Thus, the wireless communication terminals 1a to 1n are configured.
The determination device 2 is based on an input unit 3 for inputting connection data of the wireless communication terminals 1a to 1n, a database 4 for recording various data including the input connection data, and various data recorded in the database 4. A processing unit 5 that generates communication data between terminals and determines the communication status, and a display unit 6 that displays the communication status determined by the processing unit 5 are provided.
The input unit 3 is for inputting connection data obtained by the wireless communication terminals 1a to 1n. For example, the input unit 3 may be configured to input connection data by wired connection to the wireless communication terminals 1a to 1n, but from the viewpoint of acquiring connection data in real time without hindering the behavior of the target person, The input unit 3 is preferably configured to obtain connection data by wireless communication.
The database 4 is for storing various information. Specifically, the database 4 includes a connection database 4a that stores connection data output from the wireless communication terminals 1a to 1n, an average database 4b that stores connection data that has been subjected to the averaging process, and an averaging process. The inter-terminal communication database 4c that stores, as the inter-terminal communication data, data whose RSSI value is equal to or greater than a predetermined threshold among the applied connection data, and stores the number of communication times and the communication time determined based on the inter-terminal communication data It has a determination result database 4d and a parameter database 4e that stores parameters used for processing.
The parameters stored in the parameter database 4e are at least a threshold related to reception strength, a minimum sharing time, and a minimum non-sharing time.
The threshold related to reception strength is used to determine the magnitude of reception strength in communication between wireless communication terminals when determining the start and end of communication in the communication detection method according to the present embodiment. Although different values may be used for the threshold value used for the communication start determination and the threshold value used for the communication end determination, the same value is used in the present embodiment. The threshold value is determined according to the distance between terminals corresponding to the communicable range between the target persons. In the present embodiment, the communicable range is set to about 2 m, and the distance between the terminals is equal to this. As a value within the range of the fluctuation range of the reception intensity of the wireless communication terminal, a threshold value of −65 dBm or more and 1 to 55 dBm, and a more preferable value is −60 dBm.
The minimum sharing time is a time length used in the communication start determination in the communication detection method according to the present embodiment. The value of the minimum sharing time is set based on a threshold related to reception strength. In this embodiment, the distance between terminals corresponding to the communicable range is set to 2 m, and the terminal when the distance between terminals is within 2 m. As for the wireless reception strength in the meantime, it is set to 3 minutes based on the probability that a value exceeding the threshold is detected. However, if the value is approximately 5 minutes or less, the effect of the present disclosure can be achieved.
The minimum non-sharing time is a time length used when determining the end of communication in the communication detection method according to the present embodiment. The value of the minimum non-sharing time is set based on a threshold related to reception strength. In this embodiment, the distance between terminals corresponding to the communicable range is 2 m, and the distance between terminals is within 2 m. The wireless reception strength between terminals is set to 7 minutes based on the probability that a value exceeding the threshold is detected. However, if the value is approximately 5 minutes or more and 10 minutes or less, the effect of the present disclosure can be achieved. is there.
The connection database 4a to the parameter database 4e may be configured by independent storage devices as shown in FIG. 1, but more preferably, the connection database 4a or the parameter database 4e are integrally formed by a hard disk, a USB memory or the like built in a personal computer or the like. It is also possible to configure.
The processing unit 5 includes an averaging processing unit 5a that calculates an average value of the RSSI values for predetermined connection data stored in the connection database 4a, and an RSSI that is equal to or greater than a predetermined value from the connection data for which the average value is calculated. Communication status determination that extracts the communication data generation unit 5b that extracts values and outputs them as communication data between terminals, and determines the start and end of communication based on the communication data between terminals, and calculates the communication time and the number of communication Part 5c.
The averaging processing unit 5a calculates the average RSSI value for the connection database 4a whose self ID and counterparty ID match and whose data generation time is within a predetermined time range (for example, 30 seconds). Is. The averaging processing unit 5a has a function of outputting the average value of the calculated RSSI value, the self ID, the counterparty ID, and a certain time within the predetermined time range (for example, the end of the time range) to the average database 4b. .
The terminal-to-terminal communication data generation unit 5b compares the average value of the RSSI values with a predetermined threshold for the data generated by the averaging processing unit 5a, and extracts data that exceeds the threshold value as the terminal-to-terminal communication data. It has a function of outputting to the inter-terminal communication database 4c.
The communication status determination unit 5c is for determining the start / end of communication between target persons carrying the corresponding wireless communication terminals based on the communication data between terminals, and calculating the communication time and the number of communication between the target persons. is there. Specifically, the communication status determination unit 5c determines whether or not to start communication based on inter-terminal communication data within a predetermined minimum sharing time among inter-terminal communication data having a predetermined self ID and counterparty ID. Have
The averaging processing unit 5a or the communication status determination unit 5c may be configured by independent information processing apparatuses as shown in FIG. 1, but more preferably is configured by a single personal computer or the like. It is also possible to do.
The display unit 6 is for displaying the individual communication time and the number of times of communication between the target persons calculated by the processing unit 5. As a display mode, the target person name, the communication time, and the number of times of communication may be displayed as character information. More preferably, the display unit 6 includes a point between each target person and each target person. It is assumed that the display is performed in a manner illustrated by a line segment that changes in thickness, length, etc., depending on the communication time and the number of times of communication.
Next, specific contents of the communication detection method according to the present embodiment will be described with reference to the flowchart of FIG. As shown below, the communication detection method according to the present embodiment includes inter-terminal communication data generation processing and communication status determination processing.
[Inter-terminal communication data generation processing]
First, the averaging processing unit 5a performs an averaging process on the connection data output from the wireless communication terminals 1a to 1n and input via the connection database 4a (step S101). In this embodiment, connection data including a self ID, a partner ID, an RSSI value, and a data generation time when wirelessly connected to another wireless communication terminal is output from each wireless communication terminal. With respect to such connection data, the averaging processor 5a calculates an average RSSI value for data within a predetermined time range among the connection data in which the counterpart ID and the self ID match, and the self ID, counterpart ID, and time range. Data including the time corresponding to (for example, the time corresponding to the end of the time range) is output to the average database 4b.
Next, regarding the connection data averaged in step S101, the magnitude relation between the RSSI value of the averaged connection data and a predetermined threshold is determined (step S102). Specifically, the inter-terminal communication data generation unit 5b acquires the connection data averaged from the average database 4b, acquires a threshold value from the parameter database 4e, and determines the magnitude relationship between the two. When it is determined that the RSSI value of the connection data is smaller than the threshold value, the process related to the averaged connection data is terminated, and when it is determined that the RSSI value is larger than the threshold value, the process proceeds to step S103.
Finally, data including the RSSI value of the averaged connection data, the self ID, the counterparty ID, and the time is defined as inter-terminal communication data as inter-terminal communication data, and then output to the determination result database 4d ( Step S103). The processes in steps S101 to S103 described above are performed for all connection data output from the wireless communication terminals 1a to 1n.
[Communication status judgment processing]
Next, communication status determination processing by the communication status determination unit 5c will be described with reference to the flowchart of FIG. In order to facilitate understanding, the communication status determination process regarding any two terminals of the radio communication terminals 1a to 1n will be described (that is, the communication status determination process is actually performed by any combination of radio communication terminals). In addition, the number of inter-terminal communication data regarding the two arbitrary terminals is N, and an arbitrary integer between 1 and N is n. Further, the time tn in the inter-terminal communication data is set to t1, t2,..., TN in order from the oldest time.
First, as the initial data, 0 is set for the number of times of communication M, 0 seconds for the communication time Δt, and the value of the integer n between 1 and N is set to 1 (step S201). Next, among the communication data between terminals, data at time tn and data at time tn + 1 are extracted, and the magnitude relation between the time difference value (tn + 1−tn) and the minimum sharing time is determined (step S202).
When the time difference value is larger than the final sharing time (No in step S202), the value of the integer n is converted to n + 1 (step S203), and the process of step S202 is performed again. When the time difference value is less than or equal to the final sharing time (step S202, Yes), it is determined that communication is established (step S204), and the value of the number of times of communication M is converted to M + 1 (step S205). The value of the conversation time Δt is converted to Δt + (tn + 1−tn) (step S206).
Next, the value of the integer n is converted to n + 1 (step S207), the data at time tn and the data at time tn + 1 are extracted from the inter-terminal communication data, the time difference value (tn + 1−tn) and the minimum unshared time Is determined (step S208). When it is determined that the time difference value is equal to or less than the minimum non-shared time (step S208, Yes), the communication time Δt is converted to Δt + (tn + 1−tn) assuming that communication is continued (step S206). Then, the process from step S207 is performed again.
When it is determined that the time difference value is greater than the minimum non-shared time (step S208, No), it is determined that the communication has ended (step S209). Then, it is determined whether or not the value of the integer n + 1 matches N (step S210), and if it does not match (step S210, No), in order to determine whether or not a new communication has started after the end of communication, After changing the value of the integer n to n + 1 (step S211), the processing from step S202 is performed again.
If they match (Yes in step S210), the communication status determination processing regarding all the communication data between terminals is completed, and the specific values of the communication time Δt and the number of times of communication M are output (step S212), and the process ends.
FIG. 4 is a schematic diagram illustrating a specific example of the inter-terminal communication data generation process and the communication status determination process for connection data. As shown in FIG. 4, there is connection data whose reception strength exceeds the threshold at 10:01:00, and the connection whose reception strength exceeds the threshold even at 10:01:30 (before the minimum sharing time has elapsed) Since data (inter-terminal communication data) exists, it is determined that communication has started at 10:01:00. Thereafter, until 10:07:30, since communication data between terminals is detected before the minimum non-sharing time elapses, it is determined that communication is continuing.
After 10:07:30, the communication data between terminals is not detected until 10:14:30, when the minimum non-shared time elapses, so communication at the time of the previous detection (10:07:30) Is determined to have ended.
Thereafter, at 10:15:30, the inter-terminal communication data is detected again, and subsequently, the inter-terminal communication data is detected at 10:17:00 before the minimum sharing time elapses. It is determined that communication has started again at the previous detection (10:15:30). As described above, the start / end of communication is determined. In the example of FIG. 4, the number of communication is 3 times, of which the duration of the first communication is 6 minutes 30 seconds and the duration of the second communication is 3 minutes. It is calculated that there is.
Next, the significance of each step of the communication status determination process will be described. First, step S202 is a step for determining whether or not communication has started. Regarding communication data between terminals that are close in time, it is determined that communication has started when the occurrence time difference is smaller than the minimum sharing time. The
In wireless transmission / reception, the reception intensity during wireless communication generally tends to attenuate exponentially with an increase in distance between terminals, but varies to some extent depending on communication conditions and the like even at the same distance. For this reason, for example, when the reception intensity at the distance between terminals corresponding to the communicable range also varies, even when wireless communication between terminals in the communicable range is performed when a predetermined value within the variation range is set as a threshold value There is a certain probability that a reception strength lower than the threshold is detected.
Further, when the threshold is set to a low value within the above fluctuation range, there is a certain possibility that the reception intensity of wireless communication outside the communicable range exceeds the threshold. In this case, it is erroneously determined that the communication has started even though the communication has not actually started.
For this reason, in the present embodiment, first, the reception strength threshold is within the range of variation in reception strength in the distance between terminals corresponding to the communicable range, and in a distance between terminals larger than this. By setting a value that reduces the probability of appearing as the reception strength, connection data when communication is not actually started is excluded from determination targets.
On the other hand, when the threshold value is set according to such a method (that is, when the threshold value is set high), the reception strength is lower than the threshold value particularly when each terminal is located at a distance between terminals corresponding to a distant part of the communicable range. The potential increases. For this reason, although it is in the distance between terminals corresponding to the communicable range, it is excluded from the determination target because the reception strength is below the threshold value, and it cannot be determined that the communication has started even though the communication has started. There is a danger.
In this embodiment, in order to solve such a problem, communication is started when communication data between terminals at a time included in a predetermined minimum sharing time exists multiple times (in this embodiment, twice). It is set as the structure determined with having been carried out. For example, in the present embodiment, the connection data subjected to the averaging process is generated at 30-second intervals, so when the minimum sharing time is 5 minutes, the connection data within the minimum sharing time is The total number is 10. Among the 10 pieces of connection data, by determining that the communication is started when the reception strength exceeds the threshold in two or more pieces of connection data, the probability that it can be determined when the communication is actually started is increased. I am letting.
The same applies to the determination of the end of communication. By setting a value that reduces the probability of appearing as reception strength at the distance between terminals corresponding to the communicable range for the threshold of reception strength, wireless communication is performed with the terminal located farther than that. In the case, it is possible to easily determine that the communication has ended. On the other hand, in order to avoid erroneous determination that the communication has ended even though communication is still ongoing, a plurality of terminal-to-terminal communication data having a reception strength exceeding the threshold value are within a predetermined minimum non-sharing time. If it is detected twice (in this embodiment, twice), it is determined that the communication has not ended yet.
By adopting such a configuration, the communication detection method according to the present embodiment is not a high-performance device such as a dedicated terminal, and a wireless communication terminal whose reception intensity varies even when the distance between terminals is constant. Even if it is used, it has the advantage that the presence or absence of communication between target persons can be detected with high accuracy. That is, by using the communication detection method according to the present embodiment, for example, a mobile phone or a portable music player equipped with a wireless communication function such as the Bluetooth standard can be used as a wireless communication terminal, and the cost can be reduced. Communication detection. This advantage becomes more prominent as the number of communication detection target persons increases, and the communication detection method according to the present embodiment is very suitable for performing communication detection at, for example, the entire company organization or its department level.
The configuration of the determination device 2 can also be realized by installing a predetermined program on a general computer, and since the amount of calculation required for communication detection is small, it is realized using a commercially available server or the like. It is possible. From this point of view, the communication detection method according to the present embodiment has an advantage that it can be operated at a low cost.
In the present embodiment, the connection data averaging process is performed in step S101 shown in FIG. This is a process performed for the purpose of suppressing the fluctuation range when the fluctuation range of the reception intensity at the same terminal distance is large. Therefore, if the fluctuation range of the received intensity falls within the allowable range, step S101 is omitted, and the processing of steps S102 and S103 is performed using the connection data output from the mobile communication terminals 1a to 1n as they are. It is good.
(Modification 1) Next, Modification 1 of the present embodiment will be described. FIG. 5 is a schematic diagram illustrating a configuration of a communication detection system for implementing the communication detection method according to the first modification. In the first modification, components having the same reference numerals and names as those in the embodiment have the same form and function as the components in the embodiment unless otherwise specified.
As shown in FIG. 5, the communication detection system according to the first modification includes the wireless communication terminals 11a to 11n that are carried by a plurality of persons whose communication status is to be determined and the presence / absence of communication between the target persons. It is comprised by the determination apparatus 12 which identifies the speaker at the time.
Each of the wireless communication terminals 11a to 11n includes a voice recording mechanism and has a function of outputting as connection data including volume data at the time in addition to the self ID, counterparty ID, time, and reception intensity. As the volume data, data obtained by quantifying the volume at the time is used.
In addition to the input unit 3, the database 4, the processing unit 5, and the display unit 6, the determination device 12 has a configuration that newly includes a volume database 13 and a speaker determination unit 14. The volume database 13 is used for recording the volume data among the connection data input through the input unit 3 in association with the self ID. The volume database 13 may be configured by an independent recording device, but preferably may be configured integrally with the connection database 4e or the parameter database 4e.
The speaker determination unit 14 is for determining a person who is speaking from the target person in the communication status detected by the processing unit 5 based on the volume data recorded in the volume database 13. As described in the embodiment, the processing unit 4 has a function of determining the start / end of communication with respect to a specific self ID / partner ID pair. It has a function of determining a speaker based on volume data relating to time corresponding to time.
The speaker determination unit 14 extracts a plurality of volume data associated with the self ID corresponding to the communication party (plurality) at the same time, and compares the magnitude relationships. Specifically, the largest value is extracted from the plurality of volume data, and it is determined that the target person carrying the wireless communication terminal having the associated self ID is speaking. By displaying the determination result on the display unit 6 together with the determination result of the communication status, it is possible to clarify not only the communication time and frequency but also information such as which target person is speaking in the communication. Is possible.
(Modification 2) The communication detection method according to Modification 2 includes, in addition to the contents of the communication detection method according to the embodiment or Modification 1, communication such as questions and feedback to the target person from the viewpoint of coaching. It has a function to generate and display the contents of the communication or the communication information as a hint. Specifically, for example, when the number of times of communication with a specific target person is small, it is possible to prompt the coaching target person to be aware of his / her problem by performing a display to that effect. In addition, when the communication time in a single communication is long, it is assumed that a meeting, a meeting, etc. were made between the target persons, and questions / feedback corresponding to this were generated / displayed. Also good.
(Other Modifications) Although the present disclosure has been described over the embodiment, the first modification, and the second modification, the present disclosure is not limited to the contents described in these embodiments and the like. Of course. For example, in the embodiments and the like, the reception intensity averaging process for connection data is performed by the processing device, but may be performed by the wireless communication terminal, and other processes may also be performed by the wireless communication terminal. A configuration to perform is also possible.
The communication status to be detected may be detected not only for the communication count and the total communication time described in the embodiment, but also for the start time or end time of each communication, and other communication statuses. It is good also as detecting the information to show.

The present disclosure can be used as a technique for detecting a communication state between a plurality of target persons.

1a to 1n, 11a to 11n Wireless communication terminals 2 and 12 Determination device 3 Input unit 4 Database 4a Connection database 4b Average database 4c Inter-terminal communication database 4d Determination result database 4e Parameter database 5 Processing unit 5a Averaging processing unit 5b Inter-terminal communication Data generation unit 5c Communication status determination unit 6 Display unit 13 Volume database 14 Speaker determination unit

Claims

In communication between wireless communication terminals attached to a plurality of target persons, the wireless communication terminal of a target person different from the specific target person is received by the wireless communication terminal of the specific target person among the plurality of target persons. In the communication detection method for detecting the communication status between target persons based on the wireless reception intensity detected multiple times at a certain time interval for the transmitted signal,
Of the different times when wireless communication with wireless reception intensity equal to or higher than the first threshold is made, the first communication time when the difference value between them is equal to or less than a predetermined minimum sharing time and the second delayed after the first communication time A communication start determination step for determining that communication between target persons has started when communication time exists;
In a time range delayed from the first communication time, different times at which wireless communication with a radio reception intensity equal to or higher than the second threshold value, which is equal to the first threshold value, are made, and the difference value between them is the minimum share If there is no third communication time that is a value that is equal to or greater than the minimum non-shared time that is a value that is greater than or equal to the time and a fourth communication time that is delayed from the third communication time, the communication between the target persons is terminated. A communication end determination process for determining;
A communication detection method characterized by comprising:
After it is determined that the communication is ended in the communication end determination step, the communication start determination step and the communication end determination step are newly repeated in a time range delayed from the third communication time,
The communication status calculation step of calculating a communication time which is a total value of a difference value between the third communication time and the first communication time in each iteration and the detected number of times of communication. The communication detection method according to 1.
The first and second thresholds are set within a range of fluctuation range of wireless reception strength at a distance between terminals corresponding to a communicable distance,
The minimum sharing time is set based on the first threshold;
The communication detection method according to claim 1, wherein the minimum non-sharing time is set based on the second threshold.
The minimum sharing time is set based on an appearance probability of the radio reception intensity equal to or higher than the first threshold in the distance between terminals corresponding to the communicable distance;
The communication detection method according to claim 3, wherein the minimum non-sharing time is set based on an appearance probability of a radio reception intensity equal to or greater than the second threshold in a distance between terminals corresponding to a communicable distance. .
The frequency of the wireless communication is 2.4 GHz or more and 2.497 GHz or less, and the first threshold value and the second threshold value are -65 dbm or more and -55 dbm or less. Communication detection method.
The communication detection method according to claim 5, wherein the minimum sharing time is 5 minutes or less and the minimum non-sharing time is 5 minutes or more and 10 minutes or less.
In communication between wireless communication terminals attached to a plurality of target persons, the wireless communication terminal of a target person different from the specific target person is received by the wireless communication terminal of the specific target person among the plurality of target persons. A computer-readable recording medium recording a communication detection program for causing a computer to detect a communication state between target persons based on wireless reception intensity detected multiple times at a certain time interval with respect to a transmitted signal,
For the computer
Of the different times when wireless communication with wireless reception intensity equal to or higher than the first threshold is made, the first communication time when the difference value between them is equal to or less than a predetermined minimum sharing time and the second delayed after the first communication time A communication start determination step for determining that communication between target persons has started when communication time exists;
In a time range delayed from the first communication time, it is a different time when wireless communication with a radio reception intensity equal to or greater than a second threshold value, which is equal to the first threshold value, and the difference value between each other is the minimum value Communication between the target persons is completed when there is no third communication time that is equal to or greater than the sharing time and a value that is less than or equal to the minimum non-sharing time and a fourth communication time that is delayed from the third communication time. A communication end determination step for determining
The recording medium which recorded the communication detection program which realizes.
For the computer
A step of repeatedly executing the communication start determination step and the communication end determination step newly in a time range delayed from the third communication time after determining the communication end in the communication end determination step;
A communication status calculating step of calculating a communication time which is a total value of a difference value between the third communication time and the first communication time in the number of detected communications and each repetition;
The computer-readable recording medium according to claim 7, further recording a program for realizing the above.
For the computer
Setting the first and second threshold values within a range of fluctuation range of radio reception strength at a distance between terminals corresponding to a communicable distance;
Setting the minimum sharing time based on the first threshold;
Setting the minimum unshared time based on the second threshold;
The recording medium which recorded the communication detection program of Claim 7 which recorded further the program which implement | achieves.
For the computer
Setting the minimum sharing time based on the appearance probability of the radio reception intensity equal to or higher than the first threshold in the distance between terminals corresponding to the communicable distance;
Setting the minimum non-sharing time based on an appearance probability of radio reception strength equal to or higher than the second threshold in a distance between terminals corresponding to a communicable distance;
The recording medium which recorded the communication detection program of Claim 9 which recorded further the program which implement | achieves.
The frequency of the wireless communication is 2.4 GHz to 2.497 GHz,
For the computer
The recording medium recording the communication detection program according to claim 7, further recording a program for realizing a step of setting the first threshold value and the second threshold value to -65 dbm or more and -55 dbm or less.
For the computer
The recording medium recording the communication detection program according to claim 11, further recording a program for realizing the step of setting the minimum sharing time to 5 minutes or less and the minimum non-sharing time to 5 minutes or more and 10 minutes or less.