JP2008158794A - Monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring system which monitors a movement state of a communication device by a monitoring device performing radio communication between communication devices. <P>SOLUTION: A radio AP (access point) 2 transmits a packet to a terminal device 3 in a predetermined polling cycle and, when receiving a packet of response from a terminal device 3, detects a link speed in radio communication with the terminal device 3, and informs it to a server device 1. The server device 1 manages the link speed notified from the radio AP 2 in a registration information table 15a, manages whether the terminal device 3 has moved or not based on the final link speed of a registration information table 15a and the link speed notified from and radio AP 2, and manages non-movement time when it does not move when movement is not made. The server device 1 monitors whether the terminal device 3 is in a non-move state based on the non-move time and if it is in the non-move state, notifies that it is in the non-move state to a corresponding notification destination. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a monitoring system in which a monitoring device capable of wireless communication monitors the movement state of each communication device by performing wireless communication with a plurality of communication devices.

  Patent Documents 1 and 2 disclose systems for preventing lost children such as children or the elderly. The systems of Patent Documents 1 and 2 are provided with a parent device and a child device capable of wireless communication, and output an alarm sound when the parent device and the child device are separated by a predetermined distance or more. The child machine is carried by the person, and the administrator of the infant or the elderly carries and uses the parent machine. As a result, when an infant or an elderly person carrying the child device is away from the administrator by a predetermined distance or more, the administrator carrying the parent device can grasp the fact by the alarm sound.

In recent years, the number of elderly people living alone or the physically and mentally handicapped has increased. Therefore, there is a demand for a system in which a family who is separated from an elderly person or a physically and mentally handicapped person can monitor the safety of the elderly person or the physically and mentally handicapped person in order to confirm the safety of the elderly person or the physically and mentally handicapped person.
Patent Document 3 discloses a system capable of monitoring the safety of elderly people living alone or physically and mentally handicapped persons based on the presence or absence of operation of electrical appliances in the home. The system of patent document 3 notifies the operation destination of the electrical product in the home to the notification destination registered beforehand, and the family who has separated the operation status of the electrical product by the elderly living alone or the physically and mentally handicapped By notifying, the family who is separated can grasp the safety of the elderly or the physically and mentally handicapped.
Japanese Patent No. 3025679 JP 2006-135544 A JP 2000-156738 A

  However, in the systems of Patent Documents 1 and 2, it is impossible to detect the detailed movement of a lost child within a predetermined distance. . Further, in the system of Patent Document 3, the safety of an elderly person living alone or a physically and mentally handicapped person is confirmed based on whether or not an electric product used in daily life is operated. When it is not necessary to use the product, it is difficult to grasp the situation of the elderly or the physically and mentally handicapped. Therefore, there is a demand for a system that can grasp the detailed situation of the elderly or the physically and mentally handicapped.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a monitoring system capable of detecting the movement of a person carrying a communication device in more detail than in the prior art. Is to provide. Another object of the present invention is to provide a monitoring system capable of notifying a pre-registered notification destination when a movement of a communication device is not detected for a time longer than a predetermined time. is there.

  Another object of the present invention is to monitor the no-response time when there is no response from the communication device, and when there is no response longer than a predetermined time, to the notification destination registered beforehand. It is to provide a monitoring system capable of notifying.

  The monitoring system according to the present invention is a monitoring system in which the monitoring device monitors the movement state of each communication device by performing wireless communication in which the link speed changes according to the distance between the plurality of communication devices. When the monitoring device performs wireless communication with each communication device at predetermined time intervals and there is a response from each communication device, the link speed at the time of wireless communication with each communication device is detected. The monitoring device calculates the link speed change amount sequentially detected for each communication device, and monitors whether or not each communication device has moved based on the calculated change amount. Specifically, when the amount of change calculated for each communication device is not equal to or greater than a predetermined movement determination threshold, the monitoring device calculates the accumulated time obtained by accumulating a predetermined time, which is an interval for performing wireless communication with each communication device, for each communication device. It is calculated every time and it is grasped that each communication apparatus has not moved during the calculated cumulative time.

  The monitoring system according to the present invention stores the first notification destination information indicating the first notification destination in association with each of the communication devices in the first notification destination storage means, and the accumulated time calculated for each communication device. Is longer than the predetermined movement determination reference time, the first notification destination information stored in the first notification destination storage unit corresponding to the communication device indicates that the communication device is not moving. Notify the notification destination.

  The monitoring system according to the present invention accumulates the accumulated time calculated for each communication device in a database, and calculates a movement determination reference time corresponding to each communication device based on the accumulated time accumulated in the database. To set. In the database, the accumulated time for each category in which each day is divided every predetermined time in each of the plurality of days is accumulated, and the movement determination corresponding to each category is made based on the accumulated time of the same category for different days accumulated in the database. Calculate and set the reference time.

  When there is no response from each communication device, the monitoring system according to the present invention measures a no-response time without a response from each communication device, and each communication device does not respond during the measured no-response time. Monitor that. In addition, second notification destination information indicating the second notification destination is stored in the second notification destination storage unit in association with each of the communication devices, and the no-response time measured for each communication device is a predetermined response determination. When the time is longer than the reference time, the second notification destination indicated by the second notification destination information stored in the second notification destination storage unit corresponding to the communication device is notified that the communication device is not responding. .

  The monitoring system according to the present invention includes a first monitoring device and a second monitoring device as monitoring devices. The second monitoring device performs wireless communication with each communication device, and a link speed at the time of wireless communication with each communication device. And the detected link speed is transmitted to the first monitoring device. Then, the first monitoring device calculates the change amount of the link speed for each communication device transmitted by the second monitoring device, and monitors whether or not each communication device has moved based on the calculated change amount.

  In addition, when the change amount of the link speed calculated for each communication device is not equal to or greater than the predetermined movement determination threshold, the first monitoring device accumulates a predetermined time which is an interval for performing wireless communication with each communication device, and each communication device When the accumulated time calculated every time is longer than a predetermined movement determination reference time, the corresponding first notification destination is notified that the communication apparatus is not moving. Further, when the first monitoring device does not acquire the link speed of each communication device from the second monitoring device, the no-response time of each communication device that does not acquire the link speed is measured, and the no-response time measured for each communication device. Is longer than the predetermined response determination reference time, the corresponding second notification destination is notified that this communication device is not responding.

  The monitoring system according to the present invention includes a first monitoring device and a second monitoring device as monitoring devices. The second monitoring device performs wireless communication with each communication device, and a link speed at the time of wireless communication with each communication device. Is detected. Further, the second monitoring device calculates a change amount of the link speed sequentially detected for each communication device, and when the calculated change amount is not equal to or greater than a predetermined movement determination threshold value, a predetermined interval that is an interval for performing wireless communication with each communication device. If the accumulated time calculated for each communication device is longer than a predetermined movement determination reference time, the first monitoring device is notified that the communication device is not moving. Then, according to the notification from the second monitoring device, the first monitoring device notifies the corresponding first notification destination that the communication device has not moved.

  In addition, when the second monitoring device does not respond from each communication device, it measures a non-response time when there is no response from each communication device, and the measured non-response time is longer than a predetermined response determination reference time The first monitoring device is notified that the communication device is not responding. Then, according to the notification from the second monitoring device, the first monitoring device notifies the corresponding second notification destination that the communication device is not responding.

  In the present invention, the monitoring device performs wireless communication with a plurality of communication devices at predetermined time intervals, and detects the link speed at the time of wireless communication with each communication device. The monitoring device calculates a change amount of the link speed sequentially detected for each communication device, and monitors whether or not each communication device has moved based on the calculated change amount. For example, in wireless communication between a wireless access point and a communication device, the longer the distance between the wireless access point and the communication device, the slower the link speed is required to perform stable communication. By changing, it can be detected that the distance between the wireless access point and the communication apparatus has changed. In this way, when detecting that the distance between the wireless access point and the communication device has changed due to the link speed, the movement of the carrier carrying the communication device is more specifically compared to the conventional technology, for example, 1, It is also possible to detect movement of 2 m.

  Further, when the amount of change in the link speed calculated for each communication device is not equal to or greater than the predetermined movement determination threshold, the monitoring device accumulates a predetermined time that is an interval for performing wireless communication with each communication device, so that each communication device The accumulated time that is not continuously moved is calculated, and it is grasped that each communication device has not moved for the calculated accumulated time. In this way, it is determined that the communication device has moved only when the amount of change in the link speed exceeds a certain value (movement determination threshold), and the amount of change in the link speed is very small, not exceeding the movement determination threshold. In this case, by determining that the communication device is not moving, it is possible to accurately grasp whether or not the wearer carrying the communication device is moving in accordance with daily life.

  In the present invention, the first notification destination is registered in association with each of the communication devices, and when the accumulated time calculated for each communication device is longer than a predetermined movement determination reference time, the monitoring device The corresponding first notification destination is notified that the device is not moving. Therefore, for example, when notifying that the communication device has not moved to the family of the carrier (the elderly or the physically and mentally handicapped) carrying the communication device, the family can confirm the safety of the carrier. In the case where some trouble occurs in the carrier, it can be detected early and appropriate measures can be taken early.

  In the present invention, the monitoring device accumulates the accumulated time calculated for each communication device in the database, and calculates the movement determination reference time corresponding to each communication device based on the accumulated time accumulated in the database. Based on the movement determination reference time calculated in this way, by determining whether or not to notify the first notification destination that each communication device is not moving, the carrier who carries each communication device Judgment processing according to the lifestyle pattern is possible. Therefore, as a result of the appropriate determination, notification that the communication device is not moving is made, so that useless notification processing can be prevented. In addition, the accumulated time for each category in which one day is segmented every predetermined time in each of a plurality of days is accumulated in the database, and the movement determination corresponding to each segment is based on the accumulated time of the same category of different days accumulated in the database. When the reference time is calculated, determination processing based on the movement determination reference time corresponding to each time segment of the day can be performed. In addition, when the movement determination reference time is calculated based on the latest accumulated time accumulated in the database, for example, determination processing adapted to the lifestyle rhythm of each portable person that changes according to the season becomes possible.

  In the present invention, when there is no response from each communication device, the monitoring device measures the no response time when there is no response from each communication device, and each communication device does not respond during the measured no response time To monitor. Further, when the second notification destination is registered in association with each of the communication devices, and the no-response time measured for each communication device is longer than a predetermined response determination reference time, the monitoring device Is notified to the corresponding second notification destination. Thus, for example, if the family member of the mobile phone carrying the communication device is notified that the communication device is not responding, the family member can confirm the safety of the mobile phone user and some trouble occurs to the mobile phone user. If it is, it can be detected early and appropriate measures can be taken early.

  In the present invention, when the first monitoring device and the second monitoring device are provided as monitoring devices, the second monitoring device performs wireless communication with each communication device, and detects the link speed at the time of wireless communication with each communication device. The detected link speed is transmitted to the first monitoring device. Then, the first monitoring device calculates the change amount of the link speed for each communication device transmitted by the second monitoring device, and monitors whether or not each communication device has moved based on the calculated change amount.

  Further, when the change amount of the link speed calculated for each communication device is not equal to or greater than the predetermined movement determination threshold, the first monitoring device calculates the accumulated time during which each communication device has not moved continuously, When the accumulated time calculated every time is longer than a predetermined movement determination reference time, the corresponding first notification destination is notified that the communication apparatus is not moving. Further, when the first monitoring device does not acquire the link speed of each communication device from the second monitoring device, the no-response time of each communication device that does not acquire the link speed is measured, and the no-response time measured for each communication device. Is longer than the predetermined response determination reference time, the corresponding second notification destination is notified that this communication device is not responding. With such a configuration, since the second monitoring device only detects the link speed in wireless communication with each communication device, the processing burden on the second monitoring device can be reduced.

  In the present invention, the first monitoring device and the second monitoring device are provided as the monitoring device, the second monitoring device performs wireless communication with each communication device, detects the link speed at the time of wireless communication with each communication device, A change amount of the link speed detected sequentially for each communication device is calculated, and it is determined whether or not the calculated change amount is equal to or greater than a predetermined movement determination threshold value. Further, when the amount of change is not equal to or greater than the movement determination threshold, the second monitoring device calculates an accumulated time during which each communication device has not moved continuously, and the calculated accumulated time is longer than a predetermined movement determination reference time. In this case, the first monitoring device is notified that the communication device is not moving. Then, according to the notification from the second monitoring device, the first monitoring device notifies the corresponding first notification destination that the communication device has not moved.

  In addition, the second monitoring device measures the non-response time when there is no response from each communication device, and if the measured non-response time is longer than a predetermined response determination reference time, the communication device is not responding. Notify the first monitoring device. Then, according to the notification from the second monitoring device, the first monitoring device notifies the corresponding second notification destination that the communication device is not responding. With such a configuration, the second monitoring device performs a determination process for determining whether or not each communication device has moved and a determination process for determining whether or not there is a response from each communication device. Can be reduced.

Hereinafter, a monitoring system according to the present invention will be described in detail with reference to the drawings showing embodiments thereof.
(Embodiment 1)
FIG. 1 is a schematic diagram illustrating a configuration example of a monitoring system according to the first embodiment. The monitoring system 100 according to the first embodiment includes a server device 1 managed by a business entity that operates a terminal device monitoring service, and a plurality of wireless access points (hereinafter referred to as wireless APs) 2, 2,. Such a configuration is connected via the network N. Each of the wireless APs 2, 2... Is capable of wireless communication via an IP (Internet Protocol) network, for example, and is connected to one or a plurality of terminal devices (communication devices) 3, 3. Wireless communication between them. The wireless APs 2, 2... Perform wireless communication with the terminal devices 3, 3.

  An elderly person, a physically or physically handicapped person, or a family member (hereinafter, also referred to as a user) who uses the monitoring system 100 performs a registration process in advance in order to use a terminal device monitoring service operated by a business entity. Thereby, the server apparatus 1 can manage information regarding a user who uses the terminal apparatus monitoring service, an elderly person who carries each of the terminal apparatuses 3, 3... Or the like (hereinafter also referred to as a monitoring target person). it can.

  In the monitoring system 100 according to the first embodiment, for example, one wireless AP 2, 2,... Is installed in each home, and the terminal devices 3, 3,. The wireless AP 2 transmits a packet at a predetermined polling cycle to the terminal devices 3, 3... Carried by each monitoring target person in the home, and each terminal device 3 based on a response from each terminal device 3, 3. , 3..., 3..., 3.

  The wireless AP 2 is configured to perform stable communication by decreasing the link speed as the distance to the terminal apparatuses 3, 3... Increases, and the terminal apparatuses 3, 3. Can be detected. However, the link speed depends not only on the distance between the wireless AP 2 and each terminal device 3, 3..., But also on the presence or absence of an obstacle interposed between the wireless AP 2 and each terminal device 3, 3. Be slow. Therefore, the monitoring system 100 according to the first embodiment does not directly detect the distance between the wireless AP 2 and each terminal device 3, 3,..., But detects each terminal device 3, 3,. Detecting that the person being monitored is moving.

  Therefore, in the monitoring system 100 of the first embodiment, it is possible to monitor whether or not the monitoring target person carrying each of the terminal devices 3, 3... Is moving. Can notify the family of the person being monitored. Specifically, when the movement of the monitoring subject carrying the terminal device 3 has not been detected for a predetermined time or longer (hereinafter referred to as a non-moving state), the fact is notified to the family, for example. As a result, the family can confirm the safety of the monitoring subject, and if any trouble occurs in the monitoring subject, the family can be detected early and appropriate measures can be taken early.

  Further, in the monitoring system 100 of the first embodiment, it is monitored whether or not each terminal device 3, 3,... Appropriately responds to the wireless AP 2, and each terminal device 3, 3,. In contrast, when a response is not made for a predetermined time or longer (hereinafter referred to as a non-response state), the fact can be notified to the family of the monitoring subject carrying the terminal device 3. In addition, as a no-response state, when the terminal device 3 goes out of a predetermined range centered on the wireless AP 2, for example, when the power is cut off by a monitoring subject carrying the terminal device 3, the battery of the terminal device 3 ( In some cases, the remaining amount of the terminal device 3 is reduced and the terminal device 3 stops functioning.

  Therefore, the family who has received the notification of the non-response state confirms the cause of the non-response state by contacting the monitoring subject, and the non-response state is confirmed by the power supply of the terminal device 3 being cut off. If it is, the person to be monitored can be instructed to turn on the terminal device 3. In addition, when the remaining amount of the battery is low, the monitoring subject can be instructed to replace the battery or charge the rechargeable battery. Furthermore, when the terminal device 3 is in a non-response state due to being away from the wireless AP 2 by a predetermined distance or more, the location of the monitoring subject can be confirmed, and some trouble has occurred in the monitoring subject. In this case, it can be detected early and appropriate measures can be taken early.

  Note that a mobile phone capable of wireless communication via the IP network can be used as the terminal devices 3, 3,..., Since the terminal devices 3, 3,. It is desirable to reduce the size and weight, and for example, it is preferable to be configured in the shape of a business card. Moreover, if further miniaturization is possible, you may comprise as a pendant which used the terminal device 3,3 ... as the pendant top, and may be comprised in the shape attached to a wristwatch or a ring.

  FIG. 2 is a block diagram illustrating a configuration example of the monitoring system 100 according to the first embodiment. In the monitoring system 100 of the first embodiment, the server device 1 includes a control unit 10, a ROM 11, a RAM 12, a clock unit 13, an operation unit 14, an HDD 15, a network interface 16 for connecting to the network N, and the like. Each part of the wear is connected to each other via the bus 1a.

  The control unit 10 is configured by a CPU (Central Processing Unit), an MPU (Micro Processor Unit), or the like, reads out a control program stored in advance in the ROM 11 to the RAM 12 as appropriate, and executes the operation of each hardware unit described above. Control. In the ROM 11, various control programs necessary for the operation of the server device 1 are stored in advance. The RAM 12 is configured by SRAM, flash memory, or the like, and temporarily stores various data generated when the control unit 10 executes the control program.

The clock unit 13 clocks an absolute time (year, month, day, hour, minute, second), and also performs a timer process for measuring a predetermined time in accordance with control from the control unit 10.
The operation unit 14 includes various operation keys necessary for operation by an administrator who manages the server device 1. When each operation key is operated by the administrator, the operation unit 14 sends a control signal corresponding to the operated operation key to the control unit 10, and the control unit 10 executes processing corresponding to the acquired control signal.

The HDD 15 is a large-capacity storage device, and the HDD 15 stores various control programs necessary for the operation of the server device 1, a registration information table 15a as shown in FIG. In the registration information table 15a, registration information relating to the terminal devices 3, 3,... Whose movement is monitored by the terminal device monitoring service and the monitoring target person carrying each of the terminal devices 3, 3,.
FIG. 3 is a schematic diagram illustrating the registration contents of the registration information table according to the first embodiment. 3A shows the registration contents of the registration information table 15a stored in the HDD 15, and FIG. 3B shows the registration contents of the terminal information table 25a stored in the memory unit 25 of the wireless AP 2 described later. Each is shown.

  In the registration information table 15a shown in FIG. 3A, for each server management ID assigned to each terminal device 3, 3... Monitored by the server device 1, a terminal ID for identifying each terminal device 3, 3. , The APID for identifying the wireless AP 2 that communicates with the terminal device 3 indicated by the terminal ID and detects the link speed, the last reception time when the link speed of the terminal device 3 indicated by the terminal ID is received from the wireless AP 2 indicated by the APID, The final link speed indicating the latest link speed received from the wireless AP 2, the no-movement time indicating the time during which the terminal device 3 indicated by the terminal ID is in the non-moving state, and the time during which the terminal device 3 indicated by the terminal ID is in the no-response state No-response time, indicating that the terminal device 3 indicated by the terminal ID is in a non-response state or a non-moving state, notification destination information indicating the notification destination, and monitoring for carrying the terminal device 3 indicated by the terminal ID Registrant information concerning the elephant who is registered respectively in association with each other.

The terminal ID is, for example, a MAC (Media Access Control) address, the APID and the notification destination information are, for example, an IP address, and the registrant information is, for example, the name of the monitoring target person who carries the terminal device 3, the IP of the terminal device 3. Address, etc.
The registration information table 15a is added by the control unit 10 every time the monitoring target person or the family of the monitoring target person joins the terminal device monitoring service and the terminal device 3 whose movement is monitored by the terminal device monitoring service is added. . In addition, the final reception time, final link speed, and no movement time of the registration information table 15a are updated by the control unit 10 each time the link speeds of the terminal apparatuses 3, 3,. The Further, the no-response time in the registration information table 15a is updated by the control unit 10 at each update period of the no-response time, as will be described later.

  As shown in FIG. 2, the wireless AP 2 includes a control unit 20, a ROM 21, a RAM 22, a clock unit 23, an operation unit 24, a memory unit 25, a network interface 26 for connecting to the network N, and a wireless communication for performing wireless communication. The hardware 27 is connected to each other via the bus 2a.

  The control unit 20 is configured by a CPU, an MPU, or the like, and appropriately reads and executes a control program stored in advance in the ROM 21 to the RAM 22 and controls operations of the above-described hardware units. Various control programs necessary for the operation of the wireless AP 2 are stored in the ROM 21 in advance. The RAM 22 is configured by SRAM, flash memory, or the like, and temporarily stores various data generated when the control unit 20 executes the control program.

The clock unit 23 clocks the absolute time, and also performs a timer process for measuring a predetermined time in accordance with control from the control unit 20.
The operation unit 24 includes various operation keys necessary for the user (monitoring person or his family) to operate the wireless AP 2. When each operation key is operated by the user, the operation unit 24 sends a control signal corresponding to the operated operation key to the control unit 20, and the control unit 20 executes processing corresponding to the acquired control signal.

  The memory unit 25 is a rewritable nonvolatile memory such as a flash memory. The memory unit 25 stores various control programs necessary for the operation of the wireless AP 2, a terminal information table 25a as shown in FIG. In the terminal information table 25a, terminal information related to the terminal devices 3, 3,... Where the wireless AP 2 detects the link speed is registered.

Specifically, as illustrated in FIG. 3B, the terminal information table 25a includes, for each AP management ID assigned to each terminal information 3, 3... Managed by the wireless AP 2, each terminal device 3, 3. A terminal ID for identifying the server device, a server ID for identifying the server device 1 that monitors the link speed of the terminal device 3 indicated by the terminal ID, and the like are registered in association with each other. The terminal ID is, for example, a MAC address, and the server ID is, for example, an IP address.
The terminal information table 25a is updated by the control unit 20 each time a terminal device 3 whose movement is monitored by the terminal device monitoring service is additionally registered and a terminal device 3 whose wireless AP 2 detects a link speed is added.

  The wireless communication unit 27 is connected to an antenna 27 a that transmits and receives radio waves for wireless communication, and is a communication unit that performs wireless communication with the terminal device 3. The wireless communication unit 27 establishes a connection with the terminal device 3 existing within a predetermined range centered on the wireless AP 2 via the antenna 27a in accordance with an instruction from the control unit 20. In the first embodiment, the wireless communication unit (detection unit) 27 detects a link speed that enables more stable wireless communication with the terminal device 3 when transmitting and receiving packets to and from the terminal device 3. Packet transmission / reception is performed according to the detected link speed. When the terminal device 3 goes out of the predetermined range centered on the wireless AP 2, the wireless AP 2 cannot receive a response from the terminal device 3. Therefore, the wireless communication unit 27 operates as a response determination unit that determines the presence / absence of a response from each terminal device 3, 3,..., And a link in communication with each terminal device 3, 3. Speed can be detected.

As shown in FIG. 2, the terminal device 3 includes a control unit 30, a ROM 31, a RAM 32, an operation unit 33, a wireless communication unit 34 for performing wireless communication, and the like. These hardware units are respectively connected via a bus 3a. Are connected to each other.
The control unit 30 is configured by a CPU, an MPU, or the like, and appropriately reads and executes a control program stored in advance in the ROM 31 to the RAM 32, and controls the operation of each hardware unit described above. The ROM 31 stores various control programs necessary for the operation of the terminal device 3 in advance. The RAM 32 is configured by SRAM, flash memory, or the like, and temporarily stores various data generated when the control unit 30 executes the control program.

The operation unit 33 includes various operation keys necessary for the monitoring target person to operate the terminal device 3. When each operation key is operated by the monitoring subject, the operation unit 33 sends a control signal corresponding to the operated operation key to the control unit 30, and the control unit 30 executes processing corresponding to the acquired control signal. .
The wireless communication unit 34 is connected to an antenna 34 a that transmits and receives radio waves for wireless communication, and is a means for performing wireless communication with the wireless AP 2. The wireless communication unit 34 transmits / receives a packet to / from the wireless AP 2 via the antenna 34a according to an instruction from the control unit 30. In the first embodiment, the wireless communication unit 34 responds to the wireless AP 2 by returning a predetermined packet in response to the packet transmitted from the wireless AP 2.

  In the monitoring system 100 configured as described above, the wireless AP (second monitoring device) 2 performs wireless communication with each terminal device 3 registered in the terminal information table 25a of the memory unit 25 at a preset polling cycle. The packet is transmitted from the unit 27. When receiving a response packet from each terminal device 3, the wireless communication unit 27 detects a link speed that enables more stable wireless communication with each terminal device 3. When the wireless communication unit 27 can detect the link speed in each terminal device 3, the control unit 20 sends the detected link speed together with the terminal ID of the corresponding terminal device 3 from the network interface 26 through the network N. The server device (first monitoring device) 1 is notified. Thereby, the server apparatus 1 can manage the link speed in the radio | wireless communication performed between each terminal device 3 which each radio | wireless AP2 detects collectively.

  The wireless AP 2 can use SNMP (Simple Network Management Protocol) or other protocols when notifying the server device 1 of the terminal ID and the link speed. Moreover, the above-mentioned polling period is stored in advance in the ROM 21 of the wireless AP 2 and can be a time of about several tens of seconds to one minute. In the first embodiment, the polling cycle is common to all the terminal devices 3 in which one wireless AP 2 detects the link speed. However, a different polling cycle may be used for each terminal device 3, and the user may appropriately change it via the operation unit 24.

  Below, the link speed detection processing by the wireless AP 2 in the monitoring system 100 of the first embodiment will be described based on a flowchart. FIG. 4 is a flowchart showing a procedure of link speed detection processing by the wireless AP 2. The following processing is executed by the control unit 20 in accordance with a control program stored in the ROM 21 or the memory unit 25 of the wireless AP 2.

  When the wireless AP 2 is performing a normal operation, the control unit 20 determines whether or not the polling cycle stored in the ROM 21 has elapsed by the timer processing by the clock unit 23 (S1), and has not elapsed. If it is determined (S1: NO), the normal operation is performed until the time elapses. When it is determined that the polling period has elapsed (S1: YES), the control unit 20 selects one terminal device 3 from the terminal devices 3 registered in the terminal information table 25a of the memory unit 25 (S2). Then, the packet is transmitted to the selected terminal device 3 (S3). In addition, when selecting one terminal device 3 from the terminal information table 25a, the AP management ID may be selected in ascending order.

  The control unit 20 determines whether or not there is a response from the terminal device 3 that has transmitted the packet in step S3 (S4). When it is determined that there is a response (S4: YES), that is, when a response packet is received from the terminal device 3, the control unit 20 detects the link speed with the terminal device 3 that has received the packet. The detected link speed is transmitted to the server apparatus 1 through the network interface 26 together with the terminal ID of the terminal apparatus 3 (S5). When it is determined that there is no response (S4: NO), that is, when a response packet from the terminal device 3 is not received even after a predetermined time has elapsed, and for any of the packets transmitted to the terminal device 3 a plurality of times If the response packet is not received even after the predetermined time has elapsed, the control unit 20 skips the process of step S5.

  Next, the control unit 20 determines whether there is an unprocessed terminal device 3 among the terminal devices 3 registered in the terminal information table 25a of the memory unit 25 (S6). If it is determined that there is (S6: YES), the process proceeds to step S2. Specifically, the control unit 20 selects an unprocessed terminal device 3 from the terminal devices 3 registered in the terminal information table 25a of the memory unit 25 (S2), and sends a packet to the selected terminal device 3. Transmit (S3). Further, the control unit 20 determines whether or not there is a response from the terminal device 3 that transmitted the packet (S4), and if there is a response, detects the link speed with the terminal device 3 to detect the server device 1. (S5).

  The control unit 20 performs the processing of steps S2 to S5 described above on all the terminal devices 3 registered in the terminal information table 25a of the memory unit 25, and determines that there is no unprocessed terminal device 3 in step S6. If it is determined (S6: NO), it is determined whether or not the user has instructed the wireless AP 2 to end the process as described above by operating the operation unit 24 (S7). When it is determined that the end of the process has been instructed (S7: YES), the control unit 20 ends the above-described process. When it is determined that the end of the process is not instructed (S7: NO), the control unit 20 returns the process to step S1, and repeats the processes of steps S2 to S7 described above every time the polling period elapses.

  Thus, each time the wireless AP 2 detects the link speed of each terminal device 3 monitored by itself, the wireless AP 2 notifies the server device 1 of the detected link speed, so that the server device 1 determines the link speed of each terminal device 3 in real time. Can be monitored. Further, since each wireless AP 2 does not notify the server device 1 of the link speed of the terminal device 3 that has not responded, the server device 1 also measures the no-response time for the terminal device 3 that has not received a link speed notification from the wireless AP 2. be able to.

  Next, the link speed management processing of each terminal device 3, 3... By the server device 1 notified of the link speed of each terminal device 3, 3,. When the link speed is notified from each wireless AP 2, 2... Via the network N, the control unit 10 of the server apparatus 1 determines whether the terminal ID received together with the link speed is already registered in the registration information table 15 a of the HDD 15. Determine whether. When the corresponding terminal ID is registered in the registration information table 15a, the control unit 10 reads the final link speed of the corresponding terminal device 3 from the registration information table 15a, and the read final link speed and the link received from the wireless AP 2 Compare speed.

  The control unit (calculation means) 10 calculates a difference (change amount) between the final link speed read from the registration information table 15a and the link speed received from the wireless AP 2, and the calculated difference is equal to or greater than a preset movement determination threshold value. It is determined whether or not the monitoring subject carrying the corresponding terminal device 3 has moved based on whether or not. When the control unit (determination unit) 10 determines that the calculated difference is equal to or greater than the movement determination threshold value, that is, when it is determined that the monitoring target person carrying the corresponding terminal device 3 has moved, the control unit (determination unit) 10 Reset the corresponding no move time and no response time to zero. In addition, the control unit 10 updates the final reception time of the registration information table 15a to the current time indicated by the clock unit 13, and updates the final link speed to the link speed notified from the wireless AP 2.

  When the control unit (cumulative unit) 10 determines that the calculated difference is not equal to or greater than the movement determination threshold, that is, when it is determined that the monitoring target person carrying the corresponding terminal device 3 is not moving, the registration information table The difference between the corresponding last reception time of 15a and the current time indicated by the clock unit 13 is calculated, and the calculated time is added to the corresponding non-movement time of the registration information table 15a. Further, the control unit 10 updates the final reception time of the registration information table 15a to the current time indicated by the clock unit 13, updates the final link speed to the link speed notified from the wireless AP 2, and resets the no-response time to zero. .

As described above, each time the server device 1 is notified of the link speed of each of the terminal devices 3, 3... From the wireless AP 2, 2. When not moving, the no-moving time is updated, and the final reception time, the final link speed, and the no-response time of each terminal device 3, 3,. Therefore, the control unit 10 operates as a movement monitoring unit that monitors whether or not each of the terminal devices 3, 3... Has moved, and monitors the non-moving time when the terminal devices 3, 3,.
Note that the above-described movement determination threshold is stored in advance in the ROM 11 of the server device 1 and can be set to, for example, 0.2 Mbps. In the first embodiment, the movement determination threshold is common to all the terminal devices 3. However, a different value may be used for each terminal device 3, and the administrator of the server device 1 may be appropriately changed via the operation unit 14.

  The link speed management process performed by the server device 1 in the monitoring system 100 according to the first embodiment will be described below with reference to flowcharts. FIG. 5 is a flowchart showing the procedure of link speed management processing by the server device 1. The following processing is executed by the control unit 10 in accordance with a control program stored in the ROM 11 or the HDD 15 of the server device 1.

  When the server apparatus 1 is performing normal operation, the control unit 10 determines whether or not the link speeds of the terminal apparatuses 3, 3,... Have been received from the wireless APs 2, 2,. If it is determined that the link speed has not been received (S11: NO), the control unit 10 performs a normal operation and waits until the link speed is received. If it is determined that the link speed has been received (S11: YES), the control unit 10 searches the registration information table 15a of the HDD 15 for the terminal device 3 corresponding to the terminal ID received together with the link speed (S12), and the corresponding terminal. It is determined whether or not the device 3 is registered in the registration information table 15a (S13).

  When it is determined that the corresponding terminal device 3 is not registered in the registration information table 15a (S13: NO), the control unit 10 returns the process to step S11 and performs a normal operation until the link speed is received and waits. To do. When it is determined that the corresponding terminal device 3 is registered in the registration information table 15a (S13: YES), the control unit 10 reads the final link speed of the corresponding terminal device 3 from the registration information table 15a (S14), Based on the read final link speed and the link speed received from the wireless AP 2, it is determined whether or not the corresponding terminal device 3 has moved (S15).

  Specifically, the control unit 10 calculates the difference between the final link speed read from the registration information table 15a and the link speed received from the wireless AP 2, and based on whether the calculated difference is equal to or greater than the movement determination threshold value. Thus, it is determined whether or not the corresponding terminal device 3 has moved. If it is determined that the corresponding terminal device 3 has moved (S15: YES), the control unit 10 resets the corresponding no-moving time in the registration information table 15a to 0 (S16), and the process proceeds to step S19. When it is determined that the corresponding terminal device 3 has not moved (S15: NO), the control unit 10 reads the corresponding last reception time from the registration information table 15a, and calculates the difference from the current time indicated by the clock unit 13. (S17), the calculated time is added to the corresponding no-moving time in the registration information table 15a (S18), and the process proceeds to step S19.

  Next, the control unit 10 updates the corresponding last reception time in the registration information table 15a to the current time indicated by the clock unit 13, and updates the final link speed to the link speed notified from the wireless AP 2 (S19). The corresponding no-response time in the information table 15a is reset to 0 (S20). Next, the control unit 10 determines whether or not the server device 1 has been instructed to end the processing as described above by operating the operation unit 14 (S21). When it is determined that the end of the process has been instructed (S21: YES), the control unit 10 ends the above-described process. When determining that the end of the process is not instructed (S21: NO), the control unit 10 returns the process to step S11, and whenever the link speed is notified from each of the wireless APs 2, 2,. The process of S21 is repeated.

Through the processing described above, the server device 1 manages the link speeds of the terminal devices 3, 3,... And whether each of the terminal devices 3, 3. And when it is not moving, it can manage the non-moving time which is not moving continuously. However, each wireless AP 2, 2... Notifies the detected link speed to the server device 1 only when the link speed in the communication with each terminal device 3, 3. The server device 1 cannot manage the time (no response time) during which the terminal devices 3, 3,... Are not continuously responding to the wireless APs 2, 2,.
Therefore, the update process of the no-response time of the terminal devices 3, 3... By the server device 1 that manages the link speeds of the terminal devices 3, 3,.

The server device 1 updates the no-response time of each terminal device 3 registered in the registration information table 15a of the HDD 15 with a preset no-response time update cycle. Specifically, the control unit (measuring means) 10 is configured so that the non-response time of each terminal device 3 registered in the registration information table 15a every time the update period of the non-response time is measured by the timer process by the clock unit 13. Is added with the update period of no response time. In addition, the update period of the above-mentioned no response time is stored in advance in the ROM 11 of the server device 1 and can be set to, for example, about 1 minute. However, the update period of the no-response time is not limited to this, and the administrator may change it appropriately through the operation unit 14.
Through the above-described processing, the server device 1 can manage the non-response times of the terminal devices 3, 3,... That are not continuously responding to the wireless APs 2, 2,. Therefore, the control unit 10 operates as a response monitoring unit that monitors the non-response time during which the terminal devices 3, 3... Are not responding. Thus, the no-response time sequentially updated by the server device 1 is appropriately reset to 0 when the processing described based on the flowchart shown in FIG. 5 is executed.

  Below, the update process of the no-response time by the server apparatus 1 in the monitoring system 100 of this Embodiment 1 is demonstrated based on a flowchart. FIG. 6 is a flowchart showing the procedure of the update process of the no response time by the server device 1. The following processing is executed by the control unit 10 in accordance with a control program stored in the ROM 11 or the HDD 15 of the server device 1.

  When the server device 1 is performing a normal operation, the control unit 10 determines whether or not the update period of the no response time stored in the ROM 11 has elapsed by the timer process by the clock unit 13 (S31). If it is determined that it has not been performed (S31: NO), the normal operation is performed until the time elapses. When determining that the update period of the no-response time has elapsed (S31: YES), the control unit 10 selects one terminal device 3 from the terminal devices 3 registered in the registration information table 15a of the HDD 15 ( S32), the no-response time of the selected terminal device 3 is updated (S33). When one terminal device 3 is selected from the registration information table 15a, the server management ID may be selected in ascending order, and when no response time is updated, the no response time already registered in the registration information table 15a is selected. Add the update period of no response time.

  The control unit 10 determines whether there is an unprocessed terminal device 3 among the terminal devices 3 registered in the registration information table 15a of the HDD 15 (S34), and determines that there is an unprocessed terminal device 3. If so (S34: YES), the process proceeds to step S32. Specifically, the control unit 10 selects an unprocessed terminal device 3 from the registration information table 15a of the HDD 15 (S32), and updates the no-response time of the selected terminal device 3 (S33).

  The control unit 10 performs the processes of steps S32 and S33 described above on all the terminal devices 3 registered in the registration information table 15a of the HDD 15. If it is determined in step S34 that there is no unprocessed terminal device 3 (S34: NO), the controller 10 causes the server device 1 to end the above-described processing by operating the operation unit 14 by the administrator. It is determined whether or not an instruction has been given (S35). When it is determined that the end of the process has been instructed (S35: YES), the control unit 10 ends the above-described process. On the other hand, when it is determined that the end of the process is not instructed (S35: NO), the control unit 10 returns the process to step S31, and whenever the update period of the no-response time elapses, the control unit 10 performs the above-described steps S32 to S35. Repeat the process.

  As described above, the server device 1 updates the no-response time of each terminal device 3 for each update period of the no-response time, so that the no-response time in which each terminal device 3 does not continuously respond to the wireless AP 2 is determined in real time. Can be monitored.

  Next, the non-response state and non-moving state monitoring processing of each terminal device 3, 3... By the server device 1 that manages the non-response time and non-moving time of each terminal device 3, 3,. . The control unit 10 of the server device 1 sets each terminal based on the no-response time and no-movement time of each terminal device 3, 3... Stored in the registration information table 15a of the HDD 15 at a preset state monitoring cycle. It is monitored whether the devices 3, 3... Are in a non-response state or a non-moving state.

  Specifically, each time the state monitoring cycle is measured by timer processing by the clock unit 13, the control unit (response determination unit) 10 previously stores the no-response time of each terminal device 3 registered in the registration information table 15 a. Based on whether it is longer than the set no-response determination time (response determination reference time), it is monitored whether or not the corresponding terminal device 3 is in a no-response state that has not responded to the wireless AP 2 for a long time. To do. Further, the control unit (movement determination means) 10 determines whether or not the non-movement time of each terminal device 3 registered in the registration information table 15a is longer than a preset non-movement determination time (movement determination reference time). Based on the above, it is monitored whether or not the monitoring target person carrying the corresponding terminal device 3 is in a non-moving state that has not moved for a long time. And when it detects that the corresponding terminal device 3 is a no-response state or a no-moving state, the control part (1st notification means, 2nd notification means) 10 is a registration information table (1st notification destination storage means, (Second notification destination storage means) 15a notifies the notification destination indicated by the notification destination information registered in advance.

Accordingly, the notified user, that is, the family of the monitoring subject carrying the terminal device 3 in the non-response state or the non-moving state is urged to confirm the safety by contacting the monitoring subject. be able to.
As a means for the server device 1 to notify the terminal device 3 of the non-response state or the non-movement state, for example, when a telephone number is registered in the notification destination information, notification by voice guidance using the telephone, notification destination information If an e-mail address is registered, notification by a message using e-mail is possible. Further, different notification destinations may be registered as a notification destination that notifies that there is no response state and a notification destination that notifies that there is no movement state.

  Note that the state monitoring cycle, the no-response determination time, and the no-movement determination time are stored in advance in the ROM 11 of the server device 1. The state monitoring cycle can be set to a time of about several tens of minutes to one hour, for example. Specifically, it may be a time longer than the update period of the no response time in the update process of the no response time by the server device 1 described above. The no-response determination time and the no-moving determination time can be, for example, about 2 hours and 5 hours, respectively, but are not limited thereto. In the first embodiment, the state monitoring cycle, the no-response determination time, and the no-movement determination time are common to all the terminal devices 3. However, a different value may be used for each terminal device 3, and the administrator may appropriately change the value via the operation unit 14. Furthermore, the no-moving determination time is set for, for example, daytime and nighttime, and when determining the no-moving state, the current time is confirmed and the no-moving determination time for either daytime or nighttime is set. When it is used, the no-moving state during sleeping at night is not determined as the no-moving state due to the occurrence of an abnormality in the monitoring subject carrying the terminal device 3, and unnecessary notification to the notification destination is prevented. be able to.

  Below, the monitoring process of the non-response state and the non-moving state of each of the terminal devices 3, 3,... FIG. 7 is a flowchart showing the procedure of status monitoring processing by the server device 1. The following processing is executed by the control unit 10 in accordance with a control program stored in the ROM 11 or the HDD 15 of the server device 1.

  When the server device 1 is performing a normal operation, the control unit 10 determines whether or not the state monitoring cycle stored in the ROM 11 has elapsed by the timer process by the clock unit 13 (S41). If it is determined that it has not elapsed (S41: NO), the control unit 10 performs a normal operation and waits until it has elapsed. When it is determined that the state monitoring cycle has passed (S41: YES), the control unit 10 selects one terminal device 3 from the terminal devices 3 registered in the registration information table 15a of the HDD 15 (S42), The no-response time of the selected terminal device 3 is read from the registration information table 15a (S43). In addition, when selecting one terminal device 3 from the registration information table 15a, the server management ID may be selected in ascending order.

  Whether the terminal device 3 selected in step S42 is in a no-response state based on whether or not the no-response time read in step S43 is longer than the no-response determination time stored in the ROM 11 in advance. It is determined whether or not (S44). If it is determined that there is no response state (S44: YES), the control unit 10 reads the corresponding notification destination information from the registration information table 15a, and the terminal device 3 is in the no response state to the notification destination indicated by the read notification destination information. (S45), and the process proceeds to step S49.

  If it is determined that the terminal device 3 selected in step S42 is not in a no-response state (S44: NO), the control unit 10 reads the no-movement time of the terminal device 3 selected in step S42 from the registration information table 15a (S46). Based on whether or not the read no-moving time is longer than the no-moving determination time stored in the ROM 11 in advance, it is determined whether or not the terminal device 3 selected in step S42 is in the no-moving state (S47). ). When determining that it is in the no-moving state (S47: YES), the control unit 10 reads the corresponding notification destination information from the registration information table 15a, and the terminal device 3 is in the no-moving state to the notification destination indicated by the read notification destination information. (S48), and the process proceeds to step S49.

  If it is determined that the terminal device 3 selected in step S42 is not in a non-moving state (S47: NO), the control unit 10 proceeds to step S49, and the terminal device 3 registered in the registration information table 15a of the HDD 15 is registered. It is determined whether or not there is an unprocessed terminal device 3 (S49). When it is determined that there is an unprocessed terminal device 3 (S49: YES), the control unit 10 shifts the process to step S42. Specifically, the control unit 10 selects an unprocessed terminal device 3 from the registration information table 15a of the HDD 15 (S42), and whether the selected terminal device 3 is in a no-response state or a no-moving state. Make a decision.

  The control unit 10 performs the processes of steps S42 to S48 described above on all the terminal devices 3 registered in the registration information table 15a of the HDD 15. If it is determined in step S49 that there is no unprocessed terminal device 3 (S49: NO), the controller 10 causes the server device 1 to finish the above-described processing by operating the operation unit 14 by the administrator. It is determined whether or not an instruction has been given (S50). When it is determined that the end of the process has been instructed (S50: YES), the control unit 10 ends the above-described process. On the other hand, when determining that the end of the process is not instructed (S50: NO), the control unit 10 returns the process to step S41, and repeats the processes of steps S42 to S50 described above every time the state monitoring cycle elapses. .

  Through the processing described above, the server device 1 monitors whether each terminal device 3, 3... Is in a non-response state or a non-moving state in a predetermined state monitoring cycle, and each terminal device 3, 3 is monitored. When ... becomes a no-response state or a no-movement state, it can be notified to the corresponding notification destination. In addition, according to the process mentioned above, when it becomes a non-response state or a non-moving state once, a notification process will be performed for every state monitoring period until a non-response state or a non-moving state is eliminated. However, for example, the notification process of the non-response state or the no-moving state may be performed only once, or the notification process may be performed once when a plurality of state monitoring cycles have elapsed. The notification process may be performed once every predetermined time regardless of the period.

(Embodiment 2)
Below, the monitoring system in Embodiment 2 is explained in full detail. Note that the monitoring system according to the second embodiment can be realized by the same configuration as the monitoring system 100 according to the first embodiment described above, and therefore includes the server device 1, the wireless AP 2, and the terminal device 3 according to the first embodiment. Will be described.

  In the monitoring system 100 according to the first embodiment described above, the wireless AP 2 detects the link speed in the wireless communication with the terminal device 3, the server device 1 manages the detected link speed, and the server device 1 has each terminal. The device 3 was monitored for no response and no movement. On the other hand, in the monitoring system 100 according to the second embodiment, each wireless AP 2, 2... Detects and manages the link speed of each terminal device 3, and monitors the no-response state and the no-moving state of each terminal device 3. To do. Furthermore, when the wireless AP (second monitoring device) 2 of the second embodiment detects the non-response state and the no-moving state of each terminal device 3, the wireless AP (second monitoring device) 2 notifies the server device (first monitoring device) 1 to that effect. The server device 1 notifies the notification destination corresponding to each terminal device 3 that the terminal device 3 is in a no-response state or a no-moving state.

  FIG. 8 is a schematic diagram showing the registration contents of the registration information table according to the second embodiment. In the monitoring system 100 according to the second embodiment, the HDD 15 of the server device 1 stores a registration information table 15a as shown in FIG. 8A, and the memory unit 25 of the wireless AP 2 stores the registration information table 15a as shown in FIG. A terminal information table 25a as shown is stored. In the registration information table 15a shown in FIG. 8A, for each server management ID, the terminal ID of each terminal device 3, 3,..., The APID of the wireless AP 2 that communicates with the terminal device 3 indicated by the terminal ID, and the terminal ID are stored. The notification destination information indicating the notification destination for notifying that the monitoring target person of the terminal device 3 indicated is in a non-response state or the non-moving state, the registrant information related to the monitoring target person of the terminal device 3 indicated by the terminal ID, and the like Each is registered.

  Further, in the terminal information table 25a shown in FIG. 8B, for each AP management ID, the server of the server device 1 that monitors the terminal IDs of the terminal devices 3, 3,. ID, the last detection time at which the link speed of the terminal device 3 indicated by the terminal ID was last detected, the final link speed indicating the latest link speed of the terminal device 3 indicated by the terminal ID, and the non-movement time of the terminal device 3 indicated by the terminal ID The no-response time of the terminal device 3 indicated by the terminal ID is registered in association with each other.

  Further, in the ROM 21 of the wireless AP 2, not only the polling period but also the movement determination threshold value, the update period of the no-response time, the state monitoring period, and the like that are stored in the ROM 11 of the server apparatus 1 in the monitoring system 100 of the first embodiment. Response determination time and non-movement determination time are also stored in advance.

  Hereinafter, the link speed detection processing and management processing by the wireless AP 2 in the monitoring system 100 according to the second embodiment will be described with reference to flowcharts. 9 and 10 are flowcharts showing the procedure of link speed management processing by the wireless AP 2. The following processing is executed by the control unit 20 in accordance with a control program stored in the ROM 21 or the memory unit 25 of the wireless AP 2.

  When the wireless AP 2 is performing a normal operation, the control unit 20 determines whether or not a predetermined polling period has elapsed due to timer processing by the clock unit 23 (S61), and determines that it has not elapsed (S61). : NO), perform normal operation and wait until it elapses. When it is determined that the polling cycle has elapsed (S61: YES), the control unit 20 selects one terminal device 3 from the terminal devices 3 registered in the terminal information table 25a of the memory unit 25 (S62). Then, the packet is transmitted to the selected terminal device 3 (S63). In addition, what is necessary is just to select in order with small AP management ID, when selecting the one terminal device 3 from the terminal information table 25a.

  Next, the control unit 20 determines whether or not there is a response from the terminal device 3 that has transmitted the packet in step S63 (S64). When it is determined that there is a response (S64: YES), that is, when a response packet is received from the terminal device 3, the control unit 20 detects the link speed with the terminal device 3 that has received the packet ( S65). Then, the control unit 20 reads the final link speed of the terminal device 3 selected in step S62 from the terminal information table 25a (S66), and the corresponding terminal based on the read final link speed and the link speed detected in step S65. It is determined whether or not the device 3 has moved (S67).

  Specifically, the control unit 20 calculates the difference between the final link speed read from the terminal information table 25a and the detected link speed, and responds based on whether the calculated difference is equal to or greater than the movement determination threshold. It is determined whether the terminal device 3 to be moved has moved. If it is determined that the corresponding terminal device 3 has moved (S67: YES), the control unit 20 resets the corresponding no-moving time in the terminal information table 25a to 0 (S68), and the process proceeds to step S71. When it is determined that the corresponding terminal device 3 has not moved (S67: NO), the control unit 20 reads the corresponding last detection time from the terminal information table 25a, and calculates the difference from the current time indicated by the clock unit 23. (S69), the calculated time is added to the corresponding no-moving time in the terminal information table 25a (S70), and the process proceeds to step S71.

  On the other hand, if it is determined in step S64 that there is no response (S64: NO), that is, if a response packet is not received from the terminal device 3 even after a predetermined time has elapsed, it is transmitted to the terminal device 3 multiple times. If no response packet is received after a predetermined time has elapsed for any of the packets, the control unit 20 proceeds to step S73.

Next, the control unit 20 updates the corresponding last detection time in the terminal information table 25a to the current time indicated by the clock unit 23, and updates the final link speed to the link speed detected in step S65 (S71). The corresponding no response time in the table 25a is reset to 0 (S72).
The control unit 20 determines whether there is an unprocessed terminal device 3 among the terminal devices 3 registered in the terminal information table 25a of the memory unit 25 (S73), and there is an unprocessed terminal device 3. (S73: YES), the process proceeds to step S62. Specifically, the control unit 20 selects an unprocessed terminal device 3 from the terminal information table 25a of the memory unit 25 (S62), and transmits a packet to the selected terminal device 3 (S63). Further, the control unit 20 determines whether or not there is a response from the terminal device 3 that has transmitted the packet (S64), and if there is a response, updates the registration content of the terminal information table 25a as appropriate.

  When it is determined in step S73 that there is no unprocessed terminal device 3 (S73: NO), the control unit 20 determines whether or not the wireless AP 2 has instructed the end of the processing as described above by operating the operation unit 24. Is determined (S74). When it is determined that the end of the process is instructed (S74: YES), the control unit 20 ends the above-described process. On the other hand, when determining that the end of the process is not instructed (S74: NO), the control unit 10 returns the process to step S61, and repeats the processes of steps S62 to S74 described above every time the polling period elapses.

  As described above, each time the wireless AP 2 detects the link speed of the terminal device 3, the registered content of the terminal information table 25 a is updated, so that the link speed of each terminal device 3 can be monitored in real time. Further, each wireless AP 2 has a non-moving time during which the monitoring target person carrying each terminal device 3, 3... Is not continuously moving based on the registered contents of the terminal information table 25 a, each terminal device 3, 3. It is also possible to monitor the non-response time during which no response is made.

  In the monitoring system 100 according to the second embodiment, the wireless AP 2 also performs update processing of the no-response time of each terminal device 3 registered in the terminal information table 25a managed by the wireless AP 2. However, the update of the no-response time is also performed. Since the processing is the same as the update processing of the no-response time by the server device 1 described with reference to FIG. 6 in the first embodiment, the description is omitted.

  Next, the non-response state and non-moving state monitoring processing of each terminal device 3, 3... By the wireless AP 2 that manages the non-response time and non-moving time of each terminal device 3, 3,. Note that the monitoring process performed by the wireless AP 2 in the second embodiment is the same as the monitoring process performed by the server device 1 of the first embodiment described above. However, in the second embodiment, when the wireless AP 2 detects the non-response state and the no-moving state of each terminal device 3, the server device 1 notifies the server device 1 to that effect, and the server device 1 responds to each terminal device 3. That the terminal device 3 is in a no-response state or a no-moving state.

  Below, the monitoring process of the non-response state and the non-moving state of each terminal device 3, 3,... FIG. 11 is a flowchart showing a procedure of status monitoring processing by the wireless AP 2. The following processing is executed by the control unit 20 in accordance with the control program stored in the control unit 20 and the memory unit 25 of the wireless AP 2.

  When the wireless AP 2 is performing a normal operation, the control unit 20 determines whether or not a predetermined state monitoring period has elapsed due to the timer process by the clock unit 23 (S81), and determines that it has not elapsed (S81). (S81: NO), the normal operation is performed until the time elapses. When it is determined that the state monitoring cycle has elapsed (S81: YES), the control unit 20 selects one terminal device 3 from the terminal devices 3 registered in the terminal information table 25a of the memory unit 25 (S82). ), The no-response time of the selected terminal device 3 is read from the terminal information table 25a (S83). In addition, what is necessary is just to select in order with small AP management ID, when selecting the one terminal device 3 from the terminal information table 25a.

  Whether the terminal device 3 selected in step S82 is in a no-response state based on whether or not the no-response time read in step S83 is longer than the no-response determination time stored in the ROM 21 in advance. It is determined whether or not (S84). If it is determined that the terminal device 3 is in a non-response state (S84: YES), the control unit 20 notifies the server device 1 that the terminal device 3 is in a non-response state together with the terminal ID of the terminal device 3 selected in step S82. (S85), the process proceeds to step S89.

  If it is determined in step S84 that there is no response (S84: NO), the control unit 20 reads the no-moving time of the terminal device 3 selected in step S82 from the terminal information table 25a (S86), and the read no-moving time. Is longer than the no-moving determination time stored in the ROM 21 in advance, it is determined whether or not the terminal device 3 selected in step S82 is in the non-moving state (S87). When it is determined that the terminal device 3 is in the non-moving state (S87: YES), the control unit 20 notifies the server device 1 that the terminal device 3 is in the non-moving state together with the terminal ID of the terminal device 3 selected in step S82. (S88).

  If it is determined in step S87 that the mobile device is not in the non-moving state (S87: NO), the control unit 20 proceeds to step S89, and the terminal device 3 registered in the terminal information table 25a of the memory unit 25 is not yet selected. It is determined whether or not there is a terminal device 3 for processing (S89). When it is determined that there is an unprocessed terminal device 3 (S89: YES), the control unit 20 shifts the process to step S82. Specifically, the control unit 20 selects an unprocessed terminal device 3 from the terminal information table 25a of the memory unit 25 (S82), and determines whether the selected terminal device 3 is in a no-response state or a no-moving state. Make a decision.

  The control unit 20 performs the processes of steps S82 to S88 described above on all the terminal devices 3 registered in the terminal information table 25a of the memory unit 25. When it is determined in step S89 that there is no unprocessed terminal device 3 (S89: NO), the control unit 20 determines whether or not the wireless AP 2 has instructed the end of the processing as described above by operating the operation unit 24. (S90). When it is determined that the end of the process has been instructed (S90: YES), the control unit 20 ends the above-described process. When determining that the end of the process is not instructed (S90: NO), the control unit 20 returns the process to step S81, and repeats the processes of steps S82 to S90 described above every time the state monitoring cycle elapses.

  Below, the notification process by the server apparatus 1 notified of the non-response state and the no-moving state of each of the terminal devices 3, 3,... FIG. 12 is a flowchart showing a procedure of notification processing by the server device 1. The following processing is executed by the control unit 10 in accordance with the control program stored in the control unit 10 and the HDD 15 of the server device 1.

  The server device 1 is in a waiting state for receiving a notification from the wireless AP 2. That is, the control unit 10 determines whether or not a notification of a non-response state is received from any wireless AP 2 (S91). When the notification of the non-response state is received (S91: YES), the control unit 10 reads the notification destination information corresponding to the terminal ID received from the wireless AP 2 from the registration information table 15a of the HDD 15, and the read notification destination information indicates The notification destination is notified that the terminal device 3 is in a no-response state (S92), and the process proceeds to step S93.

  When it is determined that the notification of no response state is not received from the wireless AP 2 (S91: NO), the control unit 20 determines whether the notification of no movement state is received (S93). When the notification of the non-moving state is received (S93: YES), the control unit 10 reads the notification destination information corresponding to the terminal ID received from the wireless AP 2 from the registration information table 15a of the HDD 15, and the read notification destination information indicates The notification destination is notified that the terminal device 3 is in a non-moving state (S94), and the process proceeds to step S95.

  If it is determined that the notification of the no-moving state has not been received from the wireless AP 2 (S93: NO), the control unit 20 shifts the process to step S95, and the server device 1 operates by operating the operation unit 14 by the administrator. It is determined whether or not the end of the process as described above has been instructed (S95). When it is determined that the end of the process has been instructed (S95: YES), the control unit 10 ends the above-described process. If it is determined that the end of the process has not been instructed (S95: NO), the control unit 10 returns the process to step S91 and again waits for a notification from the wireless AP 2.

Through the above-described processing, each wireless AP 2, 2... Monitors whether each terminal device 3, 3... When 3, 3... Becomes a no-response state or a no-movement state, the server device 1 can notify the corresponding notification destination to that effect.
According to the second embodiment as described above, in the first embodiment, the processing by the server device 1 that monitors the non-moving state and the non-responsive state of each terminal device 3, 3,... Is distributed to each wireless AP 2, 2,. And the processing load on the server device 1 can be reduced.

(Embodiment 3)
Below, the monitoring system in Embodiment 3 is explained in full detail. Note that the monitoring system of the third embodiment can be realized by the same configuration as the monitoring system 100 of the first embodiment described above, and therefore is configured by the server device 1, the wireless AP 2, and the terminal device 3 of the first embodiment. Will be described.

  In the monitoring system 100 according to the first embodiment described above, the terminal device 3 is carried around in a state where the non-moving time of each terminal device 3 is shorter than the preset non-moving determination time, that is, not in the non-moving state. For example, when the target person goes out and no response is made with the wireless AP 2 and when the monitoring target person returns and the response to the wireless AP 2 is resumed, the no response time of the terminal device 3 is reset to zero. Is done. However, when the difference between the link speed before the monitoring subject goes out (final link speed) and the link speed after returning home is smaller than the movement determination threshold, the no-moving time of the terminal device 3 is not reset to zero. The non-response time due to the monitoring subject going out is added to the non-movement time. For this reason, since the non-moving time is continuously added even though the monitoring subject is moving, a malfunction may occur.

  Therefore, in the third embodiment, when the no-response time of each terminal device 3 is reset to 0, the no-movement time is also reset to 0. Such a process is effective when a long non-response time is continued due to the person being monitored going out as described above. Therefore, when the server device 1 determines that each terminal device 3 is not moving based on the link speed of each terminal device 3 notified from the wireless AP 2, the no-response time of the terminal device 3 is set in advance. If it is longer than the minimum no-response time, the no-moving time of this terminal device 3 is reset to 0, and if it is shorter, the no-moving time of this terminal device 3 is updated.

  Specifically, when the control unit 10 determines that the difference between the final link speed read from the registration information table 15a and the link speed notified from the wireless AP 2 is smaller than the movement determination threshold, that is, the corresponding terminal device 3 is read out from the registration information table 15a, it is determined whether it is longer than a preset minimum no response time. . If the control unit 10 determines that the no-response time is longer than the minimum no-response time, the control unit 10 resets the corresponding no-movement time in the registration information table 15a to 0, and if the control unit 10 determines that the response time is shorter than the minimum no-response time, The difference between the corresponding last reception time in the information table 15a and the current time indicated by the clock unit 13 is added to the non-movement time.

  The minimum no-response time described above may be stored in advance in the ROM 11 of the server device 1, but needs to be longer than the polling cycle when the wireless AP 2 transmits a packet to each terminal device 3. Considering the occurrence of packet loss in communication between the wireless AP 2 and the terminal device 3, if the polling cycle is about 1 minute, the minimum no-response time can be about 5 minutes, for example, but is not limited to this. .

Hereinafter, the link speed management process performed by the server device 1 in the monitoring system 100 according to the third embodiment will be described with reference to a flowchart. In the monitoring system 100 according to the third embodiment, the process in which the wireless AP 2 detects the link speed in communication with each terminal device 3 and the process to notify the detected link speed to the server device 1 are the same as those in the first embodiment. The processing is the same as that described with reference to FIG.
FIG. 13 is a flowchart showing the procedure of link speed management processing by the server device 1. The following processing is executed by the control unit 10 in accordance with a control program stored in the ROM 11 or the HDD 15 of the server device 1.

  The control unit 10 of the server apparatus 1 determines whether or not the link speeds of the terminal apparatuses 3, 3... Are received from the wireless APs 2, 2,... (S111), and determines that the link speed is not received. If it is (S111: NO), the normal operation is performed until the link speed is received. When determining that the link speed has been received (S111: YES), the control unit 10 searches the registration information table 15a of the HDD 15 for the terminal device 3 corresponding to the terminal ID received together with the link speed (S112), and the corresponding terminal. It is determined whether or not the device 3 is registered in the registration information table 15a (S113).

  When it is determined that the corresponding terminal device 3 is not registered in the registration information table 15a (S113: NO), the control unit 10 returns the process to step S111 and performs a normal operation and waits until the link speed is received. To do. On the other hand, when it is determined that the corresponding terminal device 3 is registered in the registration information table 15a (S113: YES), the control unit 10 reads the final link speed of the corresponding terminal device 3 from the registration information table 15a (S114). ) Based on the read final link speed and the link speed received from the wireless AP 2, it is determined whether or not the corresponding terminal device 3 has moved (S115).

  If it is determined that the corresponding terminal device 3 has moved (S115: YES), the control unit 10 resets the corresponding no-moving time in the registration information table 15a to 0 (S116), and the process proceeds to step S120. When it is determined that the corresponding terminal device 3 has not moved (S115: NO), the control unit 10 reads the corresponding no-response time from the registration information table 15a, and exceeds the minimum no-response time stored in the ROM 11. It is determined whether it is long (S117). When determining that the no-response time read from the registration information table 15a is longer than the minimum no-response time (S117: YES), the control unit 10 resets the corresponding no-movement time in the registration information table 15a to 0 (S116). ), And the process proceeds to step S120.

  When it is determined that the no response time read from the registration information table 15a is shorter than the minimum no response time (S117: NO), the control unit 10 reads the corresponding last reception time from the registration information table 15a, and the clock unit 13 The difference with the present time is calculated (S118), the calculated time is added to the corresponding no-moving time in the registration information table 15a (S119), and the process proceeds to step S120.

  Then, the control unit 10 updates the corresponding last reception time in the registration information table 15a to the current time indicated by the clock unit 13, and updates the final link speed to the link speed notified from the wireless AP 2 (S120). The corresponding no response time in the table 15a is reset to 0 (S121). The control unit 10 determines whether or not the administrator has operated the operation unit 14 to instruct the server device 1 to end the processing as described above (S122). When it is determined that the end of the process has been instructed (S122: YES), the control unit 10 ends the above-described process. On the other hand, when it is determined that the end of the process is not instructed (S122: NO), the control unit 10 returns the process to step S111, and whenever the link speed is notified from each of the wireless APs 2, 2,. The processes of S112 to S122 are repeated.

  In the monitoring system 100 according to the third embodiment, the update processing of the no-response time of each terminal device 3 stored in the registration information table 15a, the terminal devices 3, 3... Based on the registered contents of the registration information table 15a. The server device 1 performs a monitoring process of a no-response state and a no-moving state. However, since these processes are the same as those described in the first embodiment, description thereof will be omitted.

(Embodiment 4)
Below, the monitoring system in Embodiment 4 is explained in full detail. Note that the monitoring system of the fourth embodiment can be realized by the same configuration as the monitoring system 100 of the first embodiment described above, and thus is configured by the server device 1, the wireless AP 2, and the terminal device 3 of the first embodiment. Will be described.

  The monitoring system 100 according to the first embodiment described above is configured to notify the notification destination indicated by one notification destination information registered in advance in the registration information table 15a in the no-response state or the no-movement state of each terminal device 3. . On the other hand, in the fourth embodiment, a plurality of pieces of notification destination information can be registered in each terminal device 3, and notification can be performed at a frequency corresponding to each piece of notification destination information.

  Specifically, a plurality of pieces of notification destination information and a notification frequency for each piece of notification destination information are registered in association with each other in the notification destination information column of the registration information table 15a. As the notification destination information, a telephone number such as a fixed telephone and a cellular phone, an e-mail address, and a facsimile number when the server apparatus 1 has a facsimile communication function can be used. In addition, the notification frequency to each notification destination can be set for every state monitoring cycle when the server apparatus 1 performs the monitoring process, every time the state monitoring cycle elapses, every time a predetermined time elapses, and the like. When the notification destination information is a telephone number, in addition to the above-described frequency, the notification process may not be performed after once being connected to the notification destination telephone.

In this way, by registering a plurality of notification destinations for notifying each terminal device 3 when it is in a no-response state or a non-moving state, the family of the monitoring target person carrying each terminal device 3 can Notifications can be received from any of the registered notification destinations. In addition, by setting different notification frequencies depending on each notification destination device, unnecessary notification processing can be eliminated, and the burden on each notification destination family due to notification processing can be reduced. Also, a plurality of different notification destinations can be registered for a notification destination for notifying that each terminal device 3 is in a no-response state and a notification destination for notifying that each terminal device 3 is in a no-moving state. Good.
Since other processes are the same as those in the first embodiment described above, the description thereof is omitted.

(Embodiment 5)
Below, the monitoring system in Embodiment 5 is explained in full detail. Note that the monitoring system of the fifth embodiment can be realized by the same configuration as the monitoring system 100 of the first embodiment described above, and therefore is configured by the server device 1, the wireless AP 2, and the terminal device 3 of the first embodiment. Will be described.

  In the monitoring system 100 according to the first embodiment described above, the non-moving determination time for determining whether or not each terminal device 3 is in the non-moving state based on the non-moving time sequentially updated in the registration information table 15a. This value may be a different value for each terminal device 3 and may be changed for each person to be monitored. Also, for example, two non-movement determination times for daytime and nighttime are set, and when determining the non-moving state, the current time is confirmed and either daytime or nighttime is used. It was good.

In the monitoring system 100 of the fifth embodiment, the server device 1 collects the no-moving time of each terminal device 3 that is sequentially updated in the registration information table 15a as log information, and each terminal device 3 based on the collected log information. Sequentially update the setting of the no-moving determination time suitable for. In the monitoring system 100 of the fifth embodiment, one day is divided into 24, and the no-moving determination time is calculated and set for each time division. Thereby, it is possible to monitor the non-moving state adapted to the life pattern of the monitoring target person carrying each terminal device 3.
In the fifth embodiment, the no-moving time for each time segment of 10 days is accumulated in the HDD 15 as the sample period, and the no-moving determination time for each time segment is calculated. Note that the sample period is not limited to 10 days, and the number of divisions for dividing one day is not limited to 24.

  FIG. 14 is a schematic diagram showing the registration contents of the database used for the calculation process of the no-moving determination time. The database shown in FIG. 14A stores log information (sample data), and the database shown in FIG. 14B stores the no-moving determination time calculated by the server device 1. In the server device 1 of the fifth embodiment, each database shown in FIG. 14 is provided for each terminal device 3, 3... The database shown in FIG. 14 (a) is composed of a two-dimensional array (10 × 24). Each row is registered with no-moving time for one day, and each column is for each time segment of each day. No move time is registered. That is, the non-moving time in the time segment from 0 o'clock to 1 o'clock on the first day of the sample period is registered in the area SD [0] [0] in the database shown in FIG.

  The control unit 10 of the server device 1 monitors the non-moving time of each terminal device 3, 3... Registered in the registration information table 15a every predetermined calculation cycle (for example, 1 minute), and the non-moving time is added. Each time, the corresponding area of the database shown in FIG. As a result, the longest no-moving time is registered in each time segment of each day of the sample period in the database shown in FIG. The predetermined calculation cycle is stored in advance in the ROM 11 of the server device 1. This calculation cycle may be a different value for each terminal device 3, or may be appropriately changed by the administrator via the operation unit 14.

  In the database shown in FIG. 14A, when the longest no-moving time in all time segments of the sample period is registered, the control unit (movement determining reference time calculating means) 10 of the server device 1 Based on each value of data, the no-moving determination time in each time segment is calculated. The database shown in FIG. 14B is configured by a one-dimensional array for storing 24 non-moving determination times. In the sample data for 10 days, the control unit 10 determines the longest non-moving time among the non-moving times (here, 10 non-moving times) in the same time section of each day as the non-moving determination in this time section. The time is registered in the corresponding area of the database shown in FIG.

  In the fifth embodiment, when sample data of 10 days as a sample period is registered in the database area SD [0] [0] to SD [9] [23], the sample data of the next day is The areas SD [0] [0] to SD [0] [23] are overwritten. Each sample data registered in the database areas SD [0] [0] to SD [9] [23] at the time when the registration of sample data in the time segment from 23:00 to 24:00 on each day is completed. Based on the above, a non-movement determination time is newly calculated. Thereby, since the no-moving determination time can be set based on the latest 10 days of sample data, for example, the non-moving state determination process adapted to the life rhythm of each monitoring subject that changes according to the season, for example. Can be performed.

  Hereinafter, in the monitoring system 100 according to the fifth embodiment, the non-movement time collection process and the non-movement determination time calculation process performed by the server apparatus 1 will be described with reference to flowcharts. FIG. 15 and FIG. 16 are flowcharts showing the procedure for collecting the no-moving time by the server device 1. The following processing is executed by the control unit 10 in accordance with a control program stored in the ROM 11 or the HDD 15 of the server device 1. In the following description, only the non-moving determination time calculation process for one terminal apparatus 3 will be described for the sake of simplification. However, by performing the following process for each terminal apparatus 3, 3,. The non-movement determination time according to the life rhythm of the monitoring subject who carries 3, 3,.

  In the following, i is used as a variable indicating what day data is being processed in the sample data, j is used as a variable indicating what time segment data is being processed in the sample data, and the variable i , J are set in the RAM 12 or the HDD 15. Therefore, the sample data of the j time section on the i day is represented by SD [i] [j]. In addition, next_i is used as a variable indicating the next day of data being processed, the current time (real time) indicated by the clock unit 13 is RT (hh: mm), and the time of the current time is RT (hh). The minutes of the current time are indicated by RT (mm). These values are also set in the RAM 12 or the HDD 15. Furthermore, a flag flag indicating whether or not sample data for the first 10 days is being collected is set in a predetermined area of the RAM 12 or the HDD 15, and the flag flag is turned off during the collection of sample data for the first 10 days. After collecting the sample data for the first 10 days, the flag flag is set to ON.

  When the server device 1 starts collecting the no-moving time in each terminal device 3, the control unit 10 first sets the variables i, j, and next_i to 0 and stores them in the RAM 12 (or HDD 15) and the RAM 12 (or The flag flag set in the HDD 15) is set to OFF (S141). The control unit 10 determines whether or not the calculation cycle (1 minute in the fifth embodiment) stored in the ROM 11 has elapsed by the timer process by the clock unit 13 (S142), and determines that it has not elapsed (S142: NO), the normal operation is performed until the time elapses.

  When it is determined that the predetermined calculation cycle has elapsed (S142: YES), the control unit 10 acquires the current time RT (hh: mm) indicated by the clock unit 13 (S143). Next, the control unit 10 reads the variables i and next_i stored in the RAM 12 and determines whether or not next_i = i (S144). If it is determined that next_i = i (S144: YES), the control unit 10 determines whether or not the current time RT (hh: mm) acquired in step S143 is 23:59 (S145). If it is determined that the current time RT (hh: mm) is not 23:59 (S145: NO), that is, if the date has not changed on each day of the sample period, the control unit 10 shifts the processing to step S154. On the other hand, when it is determined that the current time RT (hh: mm) is 23:59 (S145: YES), that is, immediately before the date changes on each day of the sample period, the control unit 10 stores the data in the RAM 12. The value of the variable next_i is updated to the value of i + 1 (S146), and the process proceeds to step S154.

  When it is determined in step S144 that next_i = i is not satisfied (S144: NO), that is, when the current time has passed 23:59 and the value of the variable next_i is updated in step S146, the control unit 10 sets the flag flag of the RAM 12 It is determined whether or not it is off (S147). When it is determined that the flag flag is off (S147: YES), that is, when the sample data for the first 10 days is being collected, the control unit 10 reads the variable next_i from the RAM 12, and next_i = 10. Is determined (S148). When it is determined that next_i = 10 (S148: YES), that is, when the collection of the sample data for 10 days is completed, the control unit 10 executes the calculation process of the no-moving determination time (S150). Further, after executing the calculation process of the no-moving determination time, the control unit 10 sets the flag flag of the RAM 12 to ON, resets the variable i to 0 (S151), and shifts the process to step S154. The details of the non-movement determination time calculation process will be described later.

If it is determined that next_i = 10 is not satisfied (S148: NO), that is, if the collection of sample data for 10 days is not yet completed, the control unit 10 updates the variable i in the RAM 12 to the value of the variable next_i (S149). Then, the process proceeds to step S154.
When it is determined in step S147 that the flag flag is not off (S147: NO), that is, after the collection of the sample data for the first 10 days is completed, the control unit 10 executes the calculation process of the no-moving determination time. (S152). Further, after executing the non-movement determination time calculation process, the control unit 10 updates the variable i in the RAM 12 to the value of the variable next_i (S153), and shifts the process to step S154.

  Next, the control unit 10 updates the variable j of the RAM 12 to the time RT (hh) of the current time acquired in step S143 (S154), and reads the corresponding no-moving time of the terminal device 3 from the registration information table 15a of the HDD 15a. (S155). Then, the control unit 10 determines whether or not the minute RT (mm) of the current time acquired in step S143 is 0 (S156). When it is determined that the minute RT (mm) is 0 (S156: YES), that is, when the time segment to be updated is changed in the database shown in FIG. The non-movement time read in step S155 is stored in SD [i] [j] (S157), and the process proceeds to step S160.

  When it is determined that the minute RT (mm) of the current time acquired in step S143 is not 0 (S156: NO), that is, when the time segment to be updated in the database shown in FIG. Determines whether the non-moving time read in step S155 is larger than the value already registered in the area SD [i] [j] in the sample data (S158). When it is determined that the read no-moving time is longer than the value of the area SD [i] [j] (S158: YES), the control unit 10 reads the value of the area SD [i] [j] in step S155. The time is updated to the no-moving time (S159), and the process proceeds to step S160. On the other hand, when it is determined that the read no-moving time is not longer than the value of the area SD [i] [j] (S158: NO), the control unit 10 skips the process of step S159 and proceeds to step S160. To do.

  Then, the control unit 10 determines whether or not the administrator has operated the operation unit 14 to instruct the server device 1 to end the processing as described above (S160). When it is determined that the end of the process has been instructed (S160: YES), the control unit 10 ends the above-described process. On the other hand, when determining that the end of the process is not instructed (S160: NO), the control unit 10 returns the process to step S142, and performs the processes of steps S143 to S160 described above every time a predetermined calculation cycle elapses. repeat.

  The non-movement determination time calculation process in the non-movement time collection process by the server device 1 described above, specifically, the processes of steps S150 and S152 in the process shown in FIG. 15 will be described based on the flowchart. FIG. 17 is a flowchart illustrating the procedure of the non-movement determination time calculation process performed by the server device 1. The following processing is executed by the control unit 10 in accordance with a control program stored in the ROM 11 or the HDD 15 of the server device 1.

  In the following, in the sample data for 10 days, a is a variable that indicates what day data is being processed, and b is a variable that indicates what time segment data is being processed each day. Use variables a and b in RAM 12 (or HDD 15). Therefore, the sample data of the b time segment on day a is indicated by SD [a] [b], and the calculated no-moving determination time in the b time interval is indicated by TO [b].

  When the server device 1 calculates the no-moving determination time corresponding to each time segment based on the sample data stored in the database of the HDD 15, the control unit 10 initializes the variables a and b to 0 and stores them in the RAM 12. Store (S171). The control unit 10 reads the value of the area SD [a] [b] in the sample data and stores it in the area TO [b] of the database shown in FIG. 14B (S172). The control unit 10 adds 1 to the variable a in the RAM 12 (S173), and determines whether the variable a is smaller than 10 (S174). When it is determined that the value is smaller than 10 (S174: YES), the control unit 10 determines whether or not the value of the area TO [b] is equal to or larger than the value of the area SD [a] [b] (S175).

When it is determined that the value of the area TO [b] is greater than or equal to the value of the area SD [a] [b] (S175: YES), the control unit 10 returns the process to step S173. On the other hand, when determining that the value of the area TO [b] is not greater than or equal to the value of the area SD [a] [b] (S175: NO), the control unit 10 sets the value of the area SD [a] [b] to the area TO The value is updated to the value of [b] (S176), the process returns to step S173, and the processes of steps S173 to S176 are repeated until the variable a becomes 10 or more.
When it is determined in step S174 that the variable a is 10 or more (S174: NO), that is, in the time segment indicated by the variable b, the longest non-moving time of each sample data is set as the non-moving determination time in the region TO [ When set to b], the control unit 10 resets the variable a in the RAM 12 to 0, and adds 1 to the variable b (S177).

Next, the control unit 10 determines whether or not the variable b is smaller than 24 (S178). When it is determined that it is 24 or more (S178: NO), the control unit 10 returns the process to step S172, and starts the setting process of the no-moving determination time in the time segment indicated by the variable b added in step S177. Further, when it is determined that the variable b is smaller than 24 (S178: YES), that is, when the setting processing of the no-moving determination time in all the time segments is completed, the control unit 10 ends the above-described processing.
Thereby, based on the latest 10-day sample data collected sequentially in the database shown in FIG. 14A, no movement according to the life rhythm of each monitoring target in each time segment that divides one day into 24 The judgment time can be set. Therefore, the server device 1 can perform a determination process based on the non-moving determination time according to the current time when determining whether or not each terminal device 1 is in the non-moving state.

  In Embodiments 1 to 5 described above, the installation location of the wireless AP 2 was not mentioned. However, for example, when the wireless AP 2 is installed in a place farthest from the door in the room, and the slowest link speed in communication between the indoor terminal device 3 and the wireless AP 2 is calculated in advance, the slowest link speed is Based on the link speed of the terminal device 3 detected by the wireless AP 2, it can be determined whether or not the monitoring subject carrying the terminal device 3 has left the room. When the monitoring subject carrying the terminal device 3 leaves the room where the wireless AP 2 is installed, the radio wave transmitted from the wireless AP 2 is weakened by the doors and walls of the room, so that the link speed is slowed down. Therefore, it is possible to monitor that the monitoring subject has left the room where the wireless AP 2 is installed by changing the link speed.

  In the first to fifth embodiments described above, one wireless AP 2 is installed in each home, and the terminal devices 3, 3... Are carried by the monitoring target person (elderly or physically or mentally handicapped) in each home. The configuration for monitoring the movement of the monitoring subject carrying the ... has been described. However, the present invention is not limited to such a configuration, and the monitoring system 100 of the present invention can be applied to monitoring the movement of an organism or an article that should exist within a certain range. For example, when the movement of a pet is monitored by attaching the terminal device 3 to a pet kept indoors, the owner can grasp the safety of the pet while he is away. In addition, it is possible to monitor theft from a normal place (bicycle parking, parking lot, etc.) such as a bicycle, a motorbike or a car.

  In addition, when the terminal device 3 is carried by a patient admitted to the hospital and the wireless AP 2 is installed in each hospital room, the movement of each patient can be monitored. Note that the number of installed wireless APs 2 may be increased according to the size of each hospital room. In this case, the location of each patient in each room can also be grasped. Further, when the wireless APs 2, 2... Are installed in a plurality of rooms of one house, it is possible to monitor which room the monitoring target person carrying the terminal device 3 is in.

  The terminal devices 3, 3... Stop operating when their batteries are exhausted. Therefore, a detection circuit for detecting the remaining amount of the battery is provided in each of the terminal devices 3, 3... And configured to notify the server device 1 via the wireless AP 2 when the remaining amount of the battery falls below a predetermined amount. Also good. In this case, the server device 1 notifies the monitoring subject's family carrying the terminal devices 3, 3,... That the remaining battery level of the terminal devices 3, 3,. Even if the monitoring subject who carries the battery forgets to replace the battery or charge the rechargeable battery, the family can prompt the user to replace the battery or charge the rechargeable battery. Accordingly, the terminal devices 3, 3... Can avoid being in a non-response state with respect to the wireless AP 2 because there is no remaining battery power, and the non-response state based on the non-response state due to the lack of remaining battery power. Can be prevented.

(Appendix 1)
A monitoring device capable of wireless communication with a communication device monitors the movement state of the communication device by performing wireless communication in which a link speed changes according to the distance between the communication devices. In the system,
The monitoring device
Communication means for performing wireless communication with the communication device at predetermined time intervals;
Response determination means for determining presence / absence of a response from the communication device for wireless communication performed by the communication means;
Detecting means for sequentially detecting a link speed at the time of wireless communication with the communication device when the response determining means determines that there is a response;
Calculating means for calculating the amount of change in link speed detected by the detecting means;
A monitoring system comprising: a movement monitoring unit that monitors whether or not the communication device has moved based on the amount of change calculated by the calculating unit.

(Appendix 2)
The monitoring device
Determining means for determining whether or not the amount of change calculated by the calculating means is equal to or greater than a preset movement determination threshold;
A cumulative means for calculating a cumulative time obtained by accumulating the predetermined time when the judgment means determines that the value is not greater than or equal to the movement determination threshold;
The monitoring system according to claim 1, wherein the movement monitoring unit is configured to monitor that the communication device has not moved during the cumulative time calculated by the cumulative unit.

(Appendix 3)
The monitoring device
First notification destination storage means for storing first notification destination information indicating a first notification destination in association with the communication device;
Movement determination means for determining whether or not the accumulated time calculated by the accumulation means is longer than a preset movement determination reference time;
If the movement determination means determines that the accumulated time is longer than the movement determination reference time, the fact that the communication apparatus is not moving is stored in the first notification destination storage means corresponding to the communication apparatus. The monitoring system according to appendix 2, further comprising: first notification means for notifying a first notification destination indicated by certain first notification destination information.

(Appendix 4)
The monitoring device
A database for accumulating the accumulated time calculated by the accumulating means;
A movement determination reference time calculating means for calculating a movement determination reference time based on the accumulated time accumulated in the database;
The monitoring system according to appendix 3, wherein the movement determination unit is configured to make a determination based on the movement determination reference time calculated by the movement determination reference time calculation unit.

(Appendix 5)
The database is configured to accumulate a cumulative time for each division in which a day is divided at predetermined time intervals in each of a plurality of days.
The movement determination reference time calculating means is configured to calculate a movement determination reference time corresponding to each section based on a cumulative time of the same section of different days accumulated in the database.
The monitoring system according to appendix 4, wherein the movement determination unit is configured to make a determination based on the movement determination reference time calculated by the movement determination reference time calculation unit.

(Appendix 6)
The monitoring device
When it is determined that there is no response by the response determination unit, a measurement unit that measures a no-response time without a response from the communication device;
The monitoring system according to any one of appendices 1 to 5, further comprising response monitoring means for monitoring that the communication device is not responding during the non-response time measured by the measuring means.

(Appendix 7)
The monitoring device
Second notification destination storage means for storing second notification destination information indicating a second notification destination in association with the communication device;
Response determination means for determining whether or not the non-response time measured by the measurement means is longer than a preset response determination reference time;
If the response determination unit determines that the no response time is longer than the response determination reference time, the fact that the communication device is not responding is stored in the second notification destination storage unit corresponding to the communication device. The monitoring system according to appendix 6, further comprising: second notification means for notifying the second notification destination indicated by the second notification destination information.

(Appendix 8)
The monitoring device includes a first monitoring device and a second monitoring device,
The second monitoring device includes the communication means, the response determination means, the detection means, and a means for transmitting the link speed detected by the detection means to the first monitoring device,
The first monitoring apparatus includes means for acquiring a link speed transmitted by the second monitoring apparatus, the calculation means, and the movement monitoring means, and the calculation means is a link acquired from the second monitoring apparatus. The monitoring system according to appendix 1, wherein the monitoring system is configured to calculate the amount of change in speed.

(Appendix 9)
The first monitoring device includes:
Determining means for determining whether or not the amount of change calculated by the calculating means is equal to or greater than a preset movement determination threshold;
A cumulative means for calculating a cumulative time obtained by accumulating the predetermined time when the judgment means determines that the value is not equal to or greater than the movement determination threshold;
First notification destination storage means for storing first notification destination information indicating a first notification destination in association with the communication device;
Movement determination means for determining whether or not the accumulated time calculated by the accumulation means is longer than a preset movement determination reference time;
If the movement determination means determines that the accumulated time is longer than the movement determination reference time, the fact that the communication apparatus is not moving is stored in the first notification destination storage means corresponding to the communication apparatus. The monitoring system according to appendix 8, further comprising first notification means for notifying a first notification destination indicated by certain first notification destination information.

(Appendix 10)
The first monitoring device includes:
If the link speed is not acquired from the second monitoring device, the measuring means for measuring the no response time without acquiring the link speed;
Second notification destination storage means for storing second notification destination information indicating a second notification destination in association with the communication device;
Response determination means for determining whether or not the non-response time measured by the measurement means is longer than a preset response determination reference time;
If the response determination unit determines that the no response time is longer than the response determination reference time, the fact that the communication device is not responding is stored in the second notification destination storage unit corresponding to the communication device. The monitoring system according to appendix 8 or 9, further comprising: second notification means for notifying the second notification destination indicated by the second notification destination information.

(Appendix 11)
The monitoring device includes a first monitoring device and a second monitoring device,
The second monitoring device includes the communication unit, the response determination unit, the detection unit, the calculation unit, the determination unit, the accumulation unit, the movement determination unit, and the movement determination unit. Means for notifying the first monitoring device that the communication device is not moving when it is determined that the time is longer than the movement determination reference time;
The first monitoring device includes the first notification destination storage unit and the first notification unit, and the first notification unit is notified by the second monitoring device that the communication device has not moved. The first notification destination indicated by the first notification destination information stored in the first notification destination storage unit corresponding to the communication device is notified that the communication device is not moving. The monitoring system according to supplementary note 3, wherein

(Appendix 12)
The second monitoring device is
When it is determined that there is no response by the response determination unit, a measurement unit that measures a no-response time without a response from the communication device;
Response determination means for determining whether or not the non-response time measured by the measurement means is longer than a preset response determination reference time;
Means for notifying the first monitoring device that the communication device is not responding when the response determination means determines that the no-response time is longer than the response determination reference time;
The first monitoring device includes:
Second notification destination storage means for storing second notification destination information indicating a second notification destination in association with the communication device;
When the second monitoring device notifies that the communication device is not responding, the fact that the communication device is not responding is stored in the second notification destination storage unit corresponding to the communication device. The monitoring system according to appendix 11, further comprising: a second notification destination storage unit that notifies a second notification destination indicated by certain second notification destination information.

It is a schematic diagram which shows the structural example of the monitoring system which concerns on Embodiment 1. FIG. It is a block diagram which shows the structural example of the monitoring system which concerns on Embodiment 1. FIG. It is a schematic diagram which shows the registration content of the registration information table which concerns on Embodiment 1. FIG. It is a flowchart which shows the procedure of the detection process of the link speed by wireless AP. It is a flowchart which shows the procedure of the management process of the link speed by a server apparatus. It is a flowchart which shows the procedure of the update process of a no-response time by a server apparatus. It is a flowchart which shows the procedure of the state monitoring process by a server apparatus. It is a schematic diagram which shows the registration content of the registration information table which concerns on Embodiment 2. FIG. It is a flowchart which shows the procedure of the management process of the link speed by wireless AP. It is a flowchart which shows the procedure of the management process of the link speed by wireless AP. It is a flowchart which shows the procedure of the state monitoring process by wireless AP. It is a flowchart which shows the procedure of the notification process by a server apparatus. It is a flowchart which shows the procedure of the management process of the link speed by a server apparatus. It is a schematic diagram which shows the registration content of the database used for the calculation process of non-moving determination time. It is a flowchart which shows the procedure of the collection process of the no-moving time by a server apparatus. It is a flowchart which shows the procedure of the collection process of the no-moving time by a server apparatus. It is a flowchart which shows the procedure of the calculation process of the no-moving determination time by a server apparatus.

Explanation of symbols

100 monitoring system 1 server device (monitoring device, first monitoring device)
10 control unit (calculation means, determination means, accumulation means, movement monitoring means, measurement means, response monitoring means, response determination means, movement determination means, first notification means, second notification means)
2 Wireless AP (monitoring device, second monitoring device)
27 Wireless communication unit (communication means, response determination means, detection means)
3 Terminal equipment (communication equipment)

Claims (5)

A monitoring device capable of wireless communication with a communication device monitors the movement state of the communication device by performing wireless communication in which a link speed changes according to the distance between the communication devices. In the system,
The monitoring device
Communication means for performing wireless communication with the communication device at predetermined time intervals;
Response determination means for determining presence / absence of a response from the communication device for wireless communication performed by the communication means;
Detecting means for sequentially detecting a link speed at the time of wireless communication with the communication device when the response determining means determines that there is a response;
Calculating means for calculating the amount of change in link speed detected by the detecting means;
A monitoring system comprising: a movement monitoring unit that monitors whether or not the communication device has moved based on the amount of change calculated by the calculating unit. The monitoring device
Determining means for determining whether or not the amount of change calculated by the calculating means is equal to or greater than a preset movement determination threshold;
A cumulative means for calculating a cumulative time obtained by accumulating the predetermined time when the judgment means determines that the value is not greater than or equal to the movement determination threshold;
The monitoring system according to claim 1, wherein the movement monitoring unit is configured to monitor that the communication apparatus has not moved during the total time calculated by the totaling unit. The monitoring device
First notification destination storage means for storing first notification destination information indicating a first notification destination in association with the communication device;
Movement determination means for determining whether or not the accumulated time calculated by the accumulation means is longer than a preset movement determination reference time;
If the movement determination means determines that the accumulated time is longer than the movement determination reference time, the fact that the communication apparatus is not moving is stored in the first notification destination storage means corresponding to the communication apparatus. The monitoring system according to claim 2, further comprising: a first notification unit that notifies a first notification destination indicated by certain first notification destination information. The monitoring device
When it is determined that there is no response by the response determination unit, a measurement unit that measures a no-response time without a response from the communication device;
The monitoring system according to any one of claims 1 to 3, further comprising response monitoring means for monitoring that the communication device is not responding during the non-response time measured by the measuring means. The monitoring device
Second notification destination storage means for storing second notification destination information indicating a second notification destination in association with the communication device;
Response determination means for determining whether or not the non-response time measured by the measurement means is longer than a preset response determination reference time;
If the response determination unit determines that the no response time is longer than the response determination reference time, the fact that the communication device is not responding is stored in the second notification destination storage unit corresponding to the communication device. The monitoring system according to claim 4, further comprising: second notification means for notifying a second notification destination indicated by the second notification destination information.

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