Sensor device and walk information communication system

Abstract

To mitigate consumption of a battery by communication.SOLUTION: A sensor device is attached to a shoe of a person. The sensor device comprises: a detection unit for detecting movement of the person; a communication unit for transmitting walk information based on detection information detected by the detection unit to an external terminal; and a control unit that determines the movement of the person using the detection information and controls communication of the communication unit depending on the determined movement of the person. The control unit performs control so that the communication of the communication unit is enabled on the condition that the movement of the person is motion differing from walking motion of the person.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a sensor device that can be attached to footwear and a communication system for walking information collected by the sensor device. [Background technology]

[0002] Conventionally, footwear such as shoes is known in which a small sensor device incorporating a sensor and a communication device is housed in a recess provided in the sole. The sensor device can calculate various parameter values ​​related to exercise (e.g., calorie consumption, running distance, etc.) based on data measured by the sensor, and transmit walking information such as the data measured by the sensor and the calculated parameter values ​​to a terminal such as a smartphone of the user. The user can then use the various parameter values ​​related to exercise for their own health management, etc. (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2009-535157 Summary of the Invention [Problem to be solved by the invention]

[0004] The sensor device attached to the footwear is required to be small, and therefore the battery that drives the sensor is also required to be small. However, the walking information stored in the sensor device needs to be transmitted to a terminal such as a smartphone, and battery consumption due to communication has been an issue.

[0005] Therefore, an object of the present invention is to provide a sensor device and a walking information communication system that can reduce battery consumption due to communication. [Means for solving the problem]

[0006] One aspect of the present invention is a sensor device attached to a person's footwear, comprising a detection unit that detects the person's movement, a communication unit that transmits walking information based on the detection information detected by the detection unit to an external terminal, and a control unit that uses the detection information to determine the person's movement and controls communication by the communication unit in accordance with the determined person's movement, where the control unit controls communication by the communication unit to enable communication, provided that the person's movement is different from a human walking motion.

[0007] One aspect of the present invention is a walking information communication system comprising a terminal and a sensor device attached to a person's footwear, the terminal comprising a communication unit capable of communicating with the sensor device, the sensor device comprising a detection unit that detects human movement, a communication unit that transmits walking information based on the detection information detected by the detection unit to the terminal, and a control unit that uses the detection information to determine the human movement and controls communication of the communication unit in accordance with the determined human movement, the control unit controlling communication by the communication unit of the sensor device to enable communication, provided that the human movement is different from a human walking motion. Effect of the Invention

[0008] According to the present invention, it is possible to reduce the battery consumption of the sensor device due to communication. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a left side view of a shoe 1 according to the present embodiment. [Diagram 2] FIG. 2 is a diagram showing an example of the configuration of the sole 10 and the sensor device 2, and is a plan view of the shoe 1 as viewed from directly above (top view). [Diagram 3] FIG. 3 is a perspective view of the sensor device 2. As shown in FIG. [Figure 4] FIG. 4 is a functional block diagram of the sensor device 2. [Diagram 5] FIG. 5 is a diagram for explaining the first movement. [Figure 6] FIG. 6 is a diagram for explaining the first type of second movement. [Figure 7]FIG. 7 is a diagram for explaining the second type of second movement. [Figure 8] FIG. 8 is a diagram for explaining the slots of the memory unit 102. As shown in FIG. [Figure 9] FIG. 9 is a schematic diagram of a walking information communication system according to the present embodiment. [Figure 10] FIG. 10 is a flowchart showing the operation of the sensor device 2. [Figure 11] FIG. 11 is a flowchart showing the operation of the communication process of the sensor device 2. [Figure 12] FIG. 12 is a sequence diagram of the pairing process (Step 203) between the sensor device 2 and the wireless terminal 3. [Figure 13] FIG. 13 is a sequence diagram between the sensor device 2 and the wireless terminal 3 in the walking information communication process (Step 204). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] An embodiment of the present invention will be described.

[0011] <Embodiment Mode> An embodiment of the present invention will be described. In this embodiment, a shoe 1 will be described as an example of footwear, but other footwear such as sandals may be used. Also, the shoe 1 will be described as a right-foot shoe as an example, but it may be a left-foot shoe. Also, the present invention may be applied to both right-foot and left-foot shoes.

[0012] 1 is a left side view of a shoe 1 according to the present embodiment. The shoe 1 has a sole 10 and a sensor device 2 that can be attached to and detached from the midfoot when the sole 10 is divided into three parts in the front-rear direction: a forefoot part, a midfoot part, and a heel part.

[0013] The sole 10 has a midsole 11 and an outer sole 12. Depending on the manufacturing method of the shoe 1, the two may be an integrated part in which there is no distinction between them. An inner sole 13 may also be provided as appropriate. The sole 10 has a fitting recess 14 on the upper surface side of the midsole 11, in which the sensor device 2 can be housed.

[0014] FIG. 2 is a diagram showing an example of the configuration of the sole 10 and the sensor device 2, and is a plan view of the shoe 1 as viewed from directly above (top view).

[0015] The accommodating recess 14 has a fitting shape that corresponds to the external shape of the sensor device 2 accommodated in the midfoot portion of the midsole 11 when viewed from above. The midsole 11 is made of, for example, EVA resin (ethylene-vinyl acetate copolymer resin). Since EVA resin is highly flexible, the accommodating recess 14 can be fixed in a manner that closely fits and encases the sensor device 2 when the sensor device 2 is worn. The detailed shape of the accommodating recess 14 will be described later.

[0016] Next, the sensor device 2 will be described.

[0017] The sensor device 2 has a contour shape that is asymmetrical about an axis of symmetry A when housed in the housing recess 14 of the sole 10. The left and right of "asymmetrical" referred to here refer to the left and right when the sensor device 2 is housed in the housing recess 14. In this embodiment, since the shoe 1 is illustrated as being for a right foot, the axis of symmetry A faces the front-to-rear direction of the shoe 1, with the left corresponding to the inner side of the shoe and the right corresponding to the outer side of the shoe.

[0018] FIG. 3 is a perspective view of the sensor device 2. As shown in FIG.

[0019] The sensor device 2 has a main body 21 that stores a battery and electronic components, a lid 22 that is removable from the main body 21, and a fastener 23 for fastening the lid 22 to the main body 21. The battery is, for example, a button battery classified as a coin type.

[0020] The electronic components include an electronic circuit board on which various electronic elements are mounted, and the electronic circuit board is equipped with a three-axis acceleration sensor, a microprocessor, an IC memory, a small wireless communication device, etc. Of course, other electronic components and circuit parts can be mounted.

[0021] FIG. 4 is a functional block diagram of the sensor device 2.

[0022] The sensor device 2 includes a three-axis acceleration sensor 100 , a control unit 101 , a memory unit 102 , and a wireless communication unit 103 .

[0023] The triaxial acceleration sensor 100 detects acceleration in each of the three orthogonal axes X, Y and Z. In the description of this embodiment, the directions of acceleration detected by the triaxial acceleration sensor 100 will be described as follows: when the sensor device 2 is attached to the shoe 1 as shown in Figures 1 and 2, the forward direction along the axis of symmetry A is defined as the X direction, the outward direction relative to the axis of symmetry A is defined as the Y direction, and the upward direction of the sensor device 2 attached to the shoe 1 is defined as the Z direction.

[0024] The control unit 101 is configured with a processor. The control unit 101 determines the motion of the user of the shoe 1 from the measurement values ​​of the three-axis acceleration sensor 100. The determined motion of the user is roughly divided into a first motion and a second motion. The first motion is a normal walking motion of a person, and the second motion is a motion other than the first motion, i.e., a motion other than a normal walking motion of a person.

[0025] FIG. 5 is a diagram for explaining the first movement. The first movement is a general walking motion of a user. In the case of general walking such as walking or running, the acceleration in the front-rear direction of the shoe connecting the forefoot to the heel is continuously detected. For example, acceleration with large values ​​in the X direction is continuously detected. Such a user movement in which acceleration with large values ​​in the X direction is continuously detected is defined as the first movement.

[0026] The second movement can be of any type as long as it is a movement other than the first movement, i.e., a movement other than the user's general walking movement; however, in this embodiment, a first type of second movement and a second type of second movement are given as examples of the second movement.

[0027] FIG. 6 is a diagram for explaining the first type of second motion. The first type of second motion is a motion in which the user touches the front part (toe) of the shoe to the ground and then lifts it up again, repeating this motion a predetermined number of times. In the case of such motion, a large acceleration and impact are detected in the X direction in a short time. Such a user motion in which a short and large acceleration and impact in the X direction is detected is defined as the first type of second motion. Note that the first type of second motion may be not only a motion in which the user touches the front part (toe) of the shoe to the ground and then lifts it up again, but also a motion in the opposite direction, i.e., a motion in which the user touches the heel side of the shoe to the ground and then lifts it up again, repeating this motion a predetermined number of times.

[0028] FIG. 7 is a diagram for explaining the second type of second motion. The second type of second motion is a motion in which the user lifts the shoe on which the sensor device 2 is attached in the outward direction, then takes it off again and touches it with the other shoe, repeating this motion a predetermined number of times. In the case of such a motion, large acceleration and impact in the Z direction and Y direction are detected in a short period of time. Such a user motion is defined as the second type of second motion.

[0029] It should be noted here that the first movement is a normal walking movement of a person, whereas the first type second movement and the second type second movement are not a normal walking movement of a person. The above-mentioned first type second movement and second type second movement are only examples, and other types of movements may be used as long as they are movements other than the first movement, which is a normal walking movement of a person, and can be easily distinguished from the first movement.

[0030] The control unit 101 receives the measurement values ​​from the three-axis acceleration sensor 100 and determines whether the user's movement is a first movement, a first type of second movement, or a second type of second movement. If the movement is the first movement, the control unit 101 calculates the user's walking information from the measurement values ​​of the three-axis acceleration sensor 100 and stores the information in the memory unit 102. The walking information is, for example, the number of steps for each speed category (walking, running, galloping).

[0031] On the other hand, when the user's movement is the first type second movement or the second type second movement, the control unit 101 controls the wireless communication unit 103 to enable communication with an external wireless terminal. The control method is, for example, turning on the wireless communication unit 103 or waking up the sleep state of the wireless communication unit 103. In addition, the control unit 101 transmits various information transmitted by the wireless communication unit 103 to the wireless communication unit 103.

[0032] The memory unit 102 is a memory in which walking information of the user is recorded. The memory unit 102 has a plurality of slots (records). FIG. 8 is a diagram for explaining the slots of the memory unit 102. In the example of FIG. 8, the memory unit 102 has 256 slots, and a slot identification number (SID) of 0 to 255 is initially assigned to each slot. Each slot has a measurement date and time and a field for walking (Walk), running (Run), or dashing (Dash) according to the speed, and the measurement date and time and the number of steps of the user are recorded in each field.

[0033] The wireless communication unit 103 is a wireless device capable of communicating with a wireless terminal. The wireless terminal is a smartphone carried by a user, or a wearable computer equipped with a communication function such as a smart watch or smart glasses. The wireless communication method is, for example, Bluetooth (registered trademark). The wireless communication unit 103 is controlled by the control unit 101 to be in a state in which it can communicate with the wireless terminal. Unless the control unit 101 controls the wireless communication unit 103 to be in a state in which it can communicate, the wireless communication unit 103 is turned off or in a sleep state to reduce power consumption.

[0034] Next, the operation of the sensor device 2 for recording walking information and the operation of communication between the sensor device 2 and the user's terminal will be described.

[0035] Fig. 9 is a schematic diagram of the walking information communication system in this embodiment. As shown in Fig. 9, the walking information communication system in this embodiment is configured with a sensor device 2 attached to a user's shoe 1, a wireless terminal 3 of the user, and a server 4 in which the user's walking information is recorded. The wireless terminal 3 and the server 4 can be connected to a communication line N and can communicate with each other.

[0036] The communication line N means a communication path that allows data communication. In other words, the communication line N includes a dedicated line (dedicated cable) for direct connection, a LAN such as Ethernet (registered trademark), a telephone communication network, a cable network, the Internet, and other communication networks, regardless of whether the communication method is wired or wireless.

[0037] The wireless terminal 3 is a wireless terminal capable of acquiring walking information of the user from the sensor device 2 by a proximity wireless method such as Bluetooth (registered trademark) and transmitting the acquired walking information to the server 4. The wireless terminal 3 is, for example, a smartphone, a mobile phone, a personal computer, a tablet computer, or the like.

[0038] The server 4 is a server system including one or more server devices, storage devices, etc. The server 4 provides a service for recording walking information of users, manages data necessary for operating the service, and provides a service for browsing walking information from the wireless terminal 3.

[0039] Next, we will explain the operation of the sensor device 2. Fig. 10 is a flowchart showing the operation of the sensor device 2. As shown in Fig. 8, the memory unit 102 has 256 slots, and initially, each slot is assigned a slot identification number (SID) from 0 to 255 (Step 100).

[0040] First, the control unit 101 sets the slot number for recording walking information to N, and sets the initial value to zero (Step 101).

[0041] The control unit 101 receives the measurement values ​​from the three-axis acceleration sensor 100, detects the user's movement (Step 102), and determines the movement (Step 103).

[0042] If the user's movement is other than the first movement (second movement) (Step 104), the control unit 101 performs communication processing (Step 112). The communication processing (Step 112) will be described later.

[0043] If the user's movement is the first movement (Step 104), the control unit 101 acquires the detection date and time of the measurement information (Step 105). Then, it starts measuring the detection time (Step 106). If the detection time is within one hour (Step 107), the control unit 101 calculates the user's walking information from the measurement values ​​acquired from the 3-axis acceleration sensor 100, and records the user's walking information in the slot with slot number N (Step 113).

[0044] When the detection time exceeds one hour (Step 107), the control unit 101 adds 1 to the slot number N (Step 112). When the slot number N is smaller than 255 (Step 109), the control unit 101 records the user's walking information in the slot with the slot number N (Step 113).

[0045] On the other hand, if the slot number N is greater than 255 (Step 109), the control unit 101 overwrites and records the user's walking information in the slot with the smallest slot number (Step 110). Then, the control unit 101 sets the slot number of the overwritten slot to N (Step 111) and continues motion detection (Step 102).

[0046] In this way, the sensor device 2 records the walking information of the user every day. Although the detection time written in one slot is set to one hour, this is merely an example and other times may be used.

[0047] Next, a description will be given of the communication process (Step 112) of the sensor device 2. FIG.

[0048] The control unit 101 of the sensor device 2 determines the movement from the measurement values ​​from the three-axis acceleration sensor 100 (Step 200).

[0049] When the user's movement is the second movement of the first type (Step 201), the control unit 101 performs a pairing process (Step 203). The pairing process (Step 203) will be described later.

[0050] When the user's movement is the second movement of the second type (Step 202), the control unit 101 performs walking information communication processing (Step 204). The walking information communication processing (Step 204) will be described later.

[0051] Next, the pairing process (Step 203) will be described. Fig. 12 is a sequence diagram of the sensor device 2 and the wireless terminal 3 in the pairing process (Step 203).

[0052] First, the user starts an application (Step 400).

[0053] When a first type of second motion is detected (Step 300), the control unit 101 of the sensor device 2 transitions the wireless communication unit 103 to a state in which communication with the wireless terminal 3 is possible (Step 301). For example, the control unit 101 powers on the wireless communication unit 103 and cancels the sleep state. Then, the control unit 101 starts pairing with the wireless terminal 3 (Step 302). The information transmitted from the sensor device 2 to the wireless terminal 3 is the identification information of the sensor device 2.

[0054] The application of the wireless terminal 3 detects the identification information of the sensor device 2 received from the sensor device 2 (Step 401) and displays the identification information of the sensor device 2 (Step 402). When the user selects the displayed identification information of the sensor device 2 (Step 403), the application of the wireless terminal 3 stores the identification information of the sensor device 2 and transmits the identification information of the wireless terminal 3 to the sensor device 2, thereby performing pairing processing (Step 404).

[0055] The control unit 101 of the sensor device 2 receives the identification information of the wireless terminal 3, stores the identification information of the wireless terminal 3, and performs pairing processing (Step 303). Then, when the pairing processing is completed, the control unit 101 transitions the wireless communication unit 103 to a state in which communication with the wireless terminal 3 is not possible (Step 304). For example, the wireless communication unit 103 is powered off and transitions to a sleep state.

[0056] By performing such an operation, the power consumption of the wireless communication unit 103 can be reduced, and the battery consumption of the sensor device 2 can be reduced.

[0057] Next, a description will be given of the operation of the walking information communication process (Step 204). Fig. 13 is a sequence diagram of the sensor device 2 and the wireless terminal 3 in the walking information communication process (Step 204).

[0058] In order to acquire walking information from the sensor device 2, the user starts an application (Step 600) and selects acquisition of walking information (Step 601).

[0059] On the other hand, when the user performs a second movement of a second type, the control unit 101 of the sensor device 2 detects the second movement of the second type (Step 500), and transitions the wireless communication unit 103 to a state in which communication with the wireless terminal 3 is possible (Step 501). For example, the wireless communication unit 103 is powered on and the sleep state is cancelled. Then, when the control unit 101 receives a request to acquire walking information from the wireless terminal 3 (Step 502), it reads the walking information from the memory unit 102 and transmits the walking information to the wireless terminal 3 via the wireless communication unit 103 (Step 503).

[0060] The application of the wireless terminal 3 receives the walking information from the sensor device 2 (Step 602). Then, the wireless terminal 3 transmits a reception completion notification of the walking information to the sensor device 2 (Step 603). In addition, the wireless terminal 3 transmits the received walking information to the server 4.

[0061] The control unit 101 of the sensor device 2 that has received the reception completion notification transitions the wireless communication unit 103 to a state in which communication with the wireless terminal 3 is not possible (Step 504). For example, the wireless communication unit 103 is powered off and transitions to a sleep state. Then, the control unit 101 returns the slot number of the memory unit 102 to the initial state (Step 505).

[0062] By performing such an operation, the power consumption of the wireless communication unit 103 can be reduced, and the battery consumption of the sensor device 2 can be reduced.

[0063] In this embodiment, communication via the wireless communication unit is controlled to be possible only when the person's movement is a movement (second movement) different from walking (first movement), thereby making it possible to reduce battery consumption of the sensor device.

[0064] In addition, by defining multiple movements (e.g., a first type of second movement, a second type of second movement) that are different from the walking movement (first movement), and determining the communication process to be executed based on the movement, the sensor device can identify which communication process is being requested to be executed. <Modification of this embodiment> In the above-described embodiment, the first type of second movement and the second type of second movement are defined as movements other than the first movement, which is a person's walking movement. However, only one of the movements may be defined, and both communication processes, the pairing process and the walking information communication process, may be controlled to be possible.

[0065] That is, when the first type of second movement is detected, both of the pairing process and the walking information communication process may be controlled to be enabled. Also, when the second type of second movement is detected, both of the pairing process and the walking information communication process may be controlled to be enabled.

[0066] With this configuration, the user will no longer be confused about which action to select.

[0067] Furthermore, some or all of the above-described embodiments can be described as, but are not limited to, the following supplementary notes.

[0068] [Appendix 1] A sensor device attached to a person's footwear, A detection unit that detects human movement; a communication unit that transmits walking information based on the detection information detected by the detection unit to an external terminal; a control unit that determines a movement of a person using the detection information and controls communication of the communication unit in accordance with the determined movement of the person; Equipped with The control unit controls the communication unit to enable communication on the condition that the movement of the person is a movement different from a walking movement of a person. Sensor device.

[0069] [Appendix 2] The control unit uses the detection information to determine whether the movement of the person is a first movement that is a walking movement of the person or a second movement that is a movement other than the walking movement of the person, and controls the communication unit to enable communication on condition that the movement of the person is the second movement. 2. The sensor device of claim 1.

[0070] [Appendix 3] The second movement is at least one of a first type of second movement, which is a movement of bringing a tip portion of the footwear to which the sensor device is attached into contact with the ground, and a second type of second movement, which is a movement of bringing an inner surface of the footwear to which the sensor device is attached into contact with an inner surface of another shoe. 3. The sensor device according to claim 2.

[0071] [Appendix 4] the second movement of the first type is a movement of contacting a tip portion of the footwear to which the sensor device is attached with the ground a plurality of times; The second type of second movement is a movement in which the inner surface of the footwear to which the sensor device is attached is brought into contact with the inner surface of another shoe multiple times. 4. The sensor device according to claim 3.

[0072] [Appendix 5] The detection unit is capable of detecting acceleration of a person's movement, The control unit determines a first movement when it detects acceleration in the person's walking direction continuously, and determines a second movement when it detects acceleration other than the first movement. 5. The sensor device according to claim 2,

[0073] [Appendix 6] The control unit determines the motion as the first type of second motion when it detects acceleration and impact in a vertical direction relative to the person, and determines the motion as the second type of second motion when it detects acceleration and impact in an outward direction relative to the person's walking direction. 6. The sensor device according to claim 2,

[0074] [Appendix 7] The control unit enables communication by the communication unit on the condition that the movement of the person is the second movement, and performs a pairing process with the terminal or a transmission process of the walking information to the terminal. 7. The sensor device according to claim 2,

[0075] [Appendix 8] The control unit is On the condition that the motion of the person is a second motion of the first type, enabling communication by the communication unit and performing a pairing process with the terminal; enabling communication by the communication unit and transmitting the walking information to the terminal on condition that the movement of the person is a second movement of the second type; 8. The sensor device of claim 7.

[0076] [Appendix 9] The control unit controls the communication unit not to transmit walking information when the movement of the person is a walking motion. 9. The sensor device according to claim 1,

[0077] [Appendix 10] The walking information is at least one of step number information, speed information, and acceleration information. 10. The sensor device according to claim 1.

[0078] [Appendix 11] The sensor device is attached to only one of the pair of footwear. 11. A sensor device according to any one of appendix 1 to appendix 10.

[0079] [Appendix 12] The sensor device is attached to a sole of one of the pair of footwear so as not to be rotatable. 11. The sensor device according to claim 1.

[0080] [Appendix 13] A terminal and a sensor device attached to a person's footwear, The terminal includes: A communication unit capable of communicating with the sensor device, The sensor device includes: A detection unit that detects human movement; a communication unit that transmits walking information based on the detection information detected by the detection unit to the terminal; a control unit that determines a movement of a person using the detection information and controls communication of the communication unit in accordance with the determined movement of the person; Equipped with The control unit controls communication by a communication unit of the sensor device to be enabled on condition that the movement of the person is a movement different from a walking movement of a person. Pedestrian information and communication system. Although the present invention has been described above with reference to preferred embodiments, the present invention is not necessarily limited to the above-described embodiments and can be modified and embodied in various ways within the scope of the technical concept thereof. [Explanation of symbols]

[0081] 1. Shoes 2. Sensor device 3. Wireless terminals 4 Server 10 soles 11 Midsole 12 Outer sole 13 Inner sole 14 Recessed portion 21 Main body 22 Lid 23 Fastening 100 3-axis acceleration sensor 101 Control section 102 Memory section 103 Wireless Communication Department

Claims

1. A sensor device attached to a person's footwear, A detection unit that detects human movement; a communication unit that transmits walking information based on the detection information detected by the detection unit to an external terminal; a control unit that determines a movement of a person using the detection information and controls communication of the communication unit in accordance with the determined movement of the person; Equipped with The control unit controls the communication unit to enable transmission of walking information on condition that the movement of the person is a movement different from a walking movement, and controls the communication unit not to transmit the walking information on condition that the movement of the person is a walking movement. Sensor device.

2. The control unit uses the detection information to determine whether the movement of the person is a first movement that is a walking movement of the person or a second movement that is a movement other than the walking movement of the person, and controls the communication unit to enable communication on the condition that the movement of the person is the second movement. The sensor device according to claim 1 .

3. The second movement is at least one of a first type of second movement, which is a movement of bringing a tip portion of the footwear to which the sensor device is attached into contact with the ground, and a second type of second movement, which is a movement of bringing an inner surface of the footwear to which the sensor device is attached into contact with an inner surface of another shoe. The sensor device according to claim 2 .

4. the second movement of the first type is a movement of contacting a tip portion of the footwear to which the sensor device is attached with the ground a plurality of times; The second type of second movement is a movement of bringing an inner surface of the footwear to which the sensor device is attached into contact with an inner surface of another shoe multiple times. The sensor device according to claim 3 .

5. The detection unit is capable of detecting acceleration of a person's movement, The control unit determines a first movement when it detects acceleration in the person's walking direction continuously, and determines a second movement when it detects acceleration other than the first movement. The sensor device according to claim 2 or 3.

6. The control unit determines the motion as the first type of second motion when it detects acceleration and impact in a vertical direction relative to the person, and determines the motion as the second type of second motion when it detects acceleration and impact in an outward direction relative to the person's walking direction. The sensor device according to claim 3 .

7. The control unit enables communication by the communication unit on the condition that the movement of the person is the second movement, and performs a pairing process with the terminal or a transmission process of the walking information to the terminal. The sensor device according to claim 2 or 3.

8. The control unit is On condition that the motion of the person is a second motion of the first type, enabling communication by the communication unit and performing a pairing process with the terminal; enabling communication by the communication unit and transmitting the walking information to the terminal on condition that the movement of the person is a second movement of the second type; The sensor device according to claim 3 .

9. The walking information is at least one of step number information, speed information, and acceleration information. The sensor device according to claim 1 .

10. The sensor device is attached to only one of the pair of footwear. The sensor device according to claim 1 .

11. The sensor device is attached to a sole of one of the pair of footwear so as not to be rotatable. The sensor device according to claim 10.

12. A terminal and a sensor device attached to a person's footwear, The terminal includes: A communication unit capable of communicating with the sensor device, The sensor device includes: A detection unit that detects human movement; a communication unit that transmits walking information based on the detection information detected by the detection unit to the terminal; a control unit that determines a movement of a person using the detection information and controls communication of the communication unit in accordance with the determined movement of the person; Equipped with The control unit controls the communication unit of the sensor device to enable transmission of walking information on condition that the movement of the person is in a direction different from the direction of walking, and controls the communication unit of the sensor device not to transmit walking information on condition that the movement of the person is in the same direction as the direction of walking. Pedestrian information and communication system

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