JP6455249B2 - Monitored person monitoring device, monitored person monitoring method, and monitored person monitoring system - Google Patents

Description

  The present invention relates to a monitored person monitoring apparatus, a monitored person monitoring method, and a monitored person monitoring system for monitoring a monitored person to be monitored.

  Japan has become an aging society, and more specifically, the aging rate, which is the ratio of the population over 65 years old to the total population due to the improvement of living standards accompanying the post-war high economic growth, improvement of the hygienic environment and improvement of medical care standards. However, it has become a super-aging society that exceeds 21%. In 2005, the total population was about 126.5 million, while the elderly population over the age of 65 was about 25.56 million. In 2020, the total population was about 124.11 million. There is also a prediction that the elderly population will be about 34.56 million. In such an aging society, the number is expected to increase compared to a nursing person who needs nursing or care due to illness, injury, or aging, which occurs in a normal society that is not an aging society.

  Such nurses are required to enter a nursing facility such as a hospital or a welfare facility for the elderly (such as a nursing home for the elderly, a nursing home for the elderly and a nursing home for the elderly in Japanese law) and receive nursing care. In facilities such as hospitals and welfare facilities for the elderly, nurses and caregivers regularly check their safety by patroling them so that nurses who need them can stay comfortably and with peace of mind. However, labor savings are required, and the work load per person increases because the number of nurses, caregivers, etc. decreases in the semi-night work and night work hours compared to the day work hours. Reduction of is demanded. For this reason, in recent years, a monitored person monitoring device that monitors a monitored person to be monitored, such as a care recipient, has been researched and developed.

  As one of such technologies, for example, there is a care support system disclosed in Patent Document 1. The care support system disclosed in Patent Document 1 is arranged in a building of a care facility composed of a single or a plurality of buildings, and if necessary, around a facility such as a garden part or a parking lot, A first communication means for relaying wireless communication in an ad hoc wireless communication network device arranged, and installed in and around the building of the nursing care facility, incorporating input devices such as various sensors and buttons, Second communication means for transmitting sensor information to a communication means for relaying communication, installed in and around the facility of the care facility, and built-in output devices such as various indicator lights and speakers, the wireless Third communication means for receiving output information from a communication means for relaying communication, the second communication means, a fourth communication means having the functions of the third communication means, and the care facility One or a plurality of fifth communication means installed in an object and connecting the wireless communication network and a LAN environment, which is a wired network in a building, on the LAN, the fifth communication means Since the first to fifth communication means are all wireless communication means, the first communication means is placed on the ceiling, wall surface, desk, etc. By arranging them freely, it is possible to construct a communication network inside and outside the facility without performing wiring work between them. Further, the second to fourth communication means make use of the characteristics of being wireless means. It can be mounted on mobile devices that can be moved or on the human body, and can be monitored and controlled in real time, such as the position, operation, and ecological information of the mounted device or the mounted human body. Up to scale Facility, and, like the medical institutions that require care, inexpensive and flexible, can be installed applied. The second communication unit of the care support system further includes a time measurement unit in milliseconds, a triaxial acceleration, and a tilt detection unit. Attach or attach to a portable device and communicate simultaneously with a plurality of neighboring first communication means according to claim 1, so that the fifth communication means or the server computer Enables positioning calculation, and further transmits the status of the device such as the operating status and battery consumption during the communication, and enables the fifth communication means or the server computer to grasp the status. However, once it enters the stationary state, it can be operated for a long time by battery operation by stopping the energization of the main circuit until it becomes the next operating state or until a certain time has passed. is there.

  On the other hand, in terms of safety confirmation, a single person living alone is the same as the care recipient and the like and is a person to be monitored.

JP 2012-150737 A

  By the way, in Patent Document 1, the second communication means that can save power is only a device attached to a caregiver and a care recipient or attached to a portable device, and there is room for improvement in terms of power saving. is there.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a monitored person monitoring apparatus, a monitored person monitoring method, and a monitored person monitoring system that can further save power.

  As a result of various studies, the present inventor has found that the above object is achieved by the present invention described below. That is, a monitored person monitoring device according to an aspect of the present invention includes a communication unit for communicating with the outside, an imaging unit that captures an imaging target in a predetermined range and generates an image of the imaging target, and the imaging unit A normality operation in which each of the presence / absence determination unit for determining the presence / absence of a monitored person in the imaging target based on the image of the imaging target generated by the communication unit, and the communication unit, the imaging unit, and the presence / absence determination unit are in an active state. The communication unit and the imaging unit in any one of a plurality of operation modes including a mode and a power saving operation mode in which the communication unit is in an active state and the imaging unit and the presence / absence determination unit are in a sleep state. And an operation mode control unit that controls each of the presence / absence determination units, and the operation mode control unit is included in the imaging target by the presence / absence determination unit. A power-saving operation mode containing a command to control each of the communication unit, the imaging unit, and the presence / absence determining unit in the normal operation mode and to shift to the power-saving operation mode When the command communication signal is broadcast by the communication unit and the power saving operation mode command communication signal is received from the outside by the communication unit, the communication unit, the imaging unit, and the presence / absence determination in the power saving operation mode Each part is controlled. Preferably, in the above-described monitored person monitoring apparatus, the broadcast communication is broadcast for transmitting the power saving operation mode command communication signal to an unspecified number of other monitored person monitoring apparatuses. Preferably, in the above-described monitored person monitoring apparatus, the broadcast communication is multicast for transmitting the power saving operation mode command communication signal to another monitored person monitoring apparatus within a predetermined range set in advance. .

  Such a monitored person monitoring device controls each of the communication unit, the imaging unit, and the presence / absence determining unit in the normal operation mode when it is determined that the monitored person exists in the imaging target, and enters the power saving operation mode. The communication unit broadcasts a power-saving operation mode command communication signal containing a command to be transferred. Therefore, when a monitored person is monitored by a plurality of monitored person monitoring devices, the monitored person monitoring apparatus of the own device whose imaging target is a range where the monitored person exists is monitored by the monitored person. The other monitored person monitoring devices whose imaging target is a range in which the monitored person does not exist shift to the power saving operation mode by receiving the power saving operation mode command communication signal. For this reason, the monitored person monitoring apparatus can save more power.

  In another aspect, in the above-described monitored person monitoring device, the presence / absence determining unit may generate the imaging target generated by the imaging unit when the presence / absence determining unit determines that the monitored person exists in the imaging target. A body motion determination unit that detects the presence or absence of body motion in the monitored person based on the image and determines whether or not the monitored person did not move during the first time, and the operation mode control When the unit determines that there is no body movement in the monitored person during the first time by the body movement determination unit, the operation for broadcasting the power saving operation mode command communication signal by the communication unit. It is characterized by executing.

  If the monitored person broadcasts the power saving operation mode command communication signal in accordance with the determination of the presence of the monitored person, for example, while moving, the monitored person monitoring apparatus at the moving destination operates in the power saving operation mode. As a result, the monitored person cannot be monitored, but the monitored person monitoring device transmits a power saving operation mode command communication signal to the communication unit when it is determined that the monitored person has not moved during the first time. Therefore, it is possible to appropriately monitor the person to be monitored and to further save power.

  In another aspect, in the above-described monitored person monitoring apparatus, the presence / absence determining unit may generate the imaging generated by the imaging unit when the presence / absence determining unit determines that the monitored person exists in the imaging target. The presence or absence of body movement in the monitored person is detected based on the image of the object, it is determined whether or not the monitored person has no body movement for a second time longer than the first time, and the second When it is determined that there is no body movement in the monitored person for a period of time, an abnormality determination communication signal containing abnormality determination information indicating that an abnormality has occurred in the monitored person is transmitted to the predetermined communication by the communication unit. An abnormality determination unit that transmits to the apparatus is provided.

  Since such a monitored person monitoring device includes an abnormality determination unit, it is possible to determine the abnormality of the monitored person and to notify the communication apparatus of the abnormality of the monitored person. For this reason, the supervisor can recognize the abnormality of the monitored person by referring to the communication device.

  Further, in another aspect, in the above-described monitored person monitoring device, a map storage unit that stores an arrangement position map representing an arrangement position of another monitored person monitoring apparatus with respect to an arrangement position of the own device; and the imaging target And detecting the moving direction of the monitored person with respect to the arrangement position of the own device based on the image of the imaging target generated by the imaging unit when it is determined that the monitored person exists in the imaging unit, and the power saving A movement direction detection unit that enters a sleep state in the operation mode, and the operation mode control unit includes another monitored person monitoring device arranged in the movement direction of the monitored person detected by the movement direction detection unit. A normal operation mode command containing a command to search from the arrangement position map stored in the map storage unit and to shift to the normal operation mode to the other monitored person monitoring device searched for When the communication signal is unicast by the communication unit and the normal operation mode command communication signal is received from the outside by the communication unit, the communication unit, the imaging unit, and the presence / absence determination unit are controlled in the normal operation mode. It is characterized by doing.

  Such a monitored person monitoring device shifts only other monitored person monitoring devices arranged in the movement direction of the monitored person from the power saving operation mode to the normal operation mode. It is possible to continue monitoring of the monitored person without consuming electric power by meaninglessly shifting another monitored person monitoring apparatus that is not arranged from the power saving operation mode to the normal operation mode.

  According to another aspect, in the above-described monitored person monitoring device, the operation mode control unit unicasts the normal operation mode command communication signal by the communication unit, and then performs the communication unit in the power saving operation mode. Each of the imaging unit and the presence / absence determining unit is controlled.

  Such a monitored person monitoring apparatus shifts from the normal operation mode to the power saving operation mode in accordance with the movement of the monitored person, and therefore can further save power.

  Further, in another aspect, in the above-described monitored person monitoring device, a map storage unit that stores an arrangement position map representing an arrangement position of another monitored person monitoring apparatus with respect to an arrangement position of the own device; and the imaging target And detecting the moving direction of the monitored person with respect to the arrangement position of the own device based on the image of the imaging target generated by the imaging unit when it is determined that the monitored person exists in the imaging unit, and the power saving A moving direction detection unit that enters a sleep state in an operation mode, an illumination unit that illuminates the imaging target and enters a sleep state in the power saving operation mode, and a movement direction of the monitored person detected by the movement direction detection unit The other monitored person monitoring device arranged in the map is searched from the arrangement position map stored in the map storage unit, and the lighting unit is turned on to the other monitored person monitoring device searched for. The lighting command communication signal containing the command to be transmitted is unicast by the communication unit, the lighting command processing unit to be in a sleep state in the power saving operation mode, and the lighting unit to be turned on / off, in the power saving operation mode A lighting control unit that is in a sleep state, and the operation mode control unit sets the lighting unit to the active state when the lighting command communication signal is received from the outside by the communication unit. The part is turned on.

  Such a monitored person monitoring device turns on the illumination unit of another monitored person monitoring device arranged in the movement direction of the monitored person, and therefore can be illuminated according to the movement of the monitored person, for example, Can prevent a person from falling or falling.

  In another aspect, in the above-described monitored person monitoring apparatus, the operation mode control unit unicasts the lighting command communication signal by the communication unit, and then the communication unit in the power saving operation mode, Each of the imaging unit and the presence / absence determining unit is controlled.

  Such a monitored person monitoring apparatus shifts from the normal operation mode to the power saving operation mode in accordance with the movement of the monitored person, and therefore can further save power.

  In another aspect, in the above-described monitored person monitoring device, the operation mode control unit unicasts the normal operation mode command communication signal and the lighting command communication signal by the communication unit, and then the power saving. Each of the communication unit, the imaging unit, and the presence / absence determination unit is controlled in an operation mode.

  Such a monitored person monitoring apparatus shifts from the normal operation mode to the power saving operation mode in accordance with the movement of the monitored person, and therefore can further save power.

  Further, in another aspect, in the above-described monitored person monitoring device, movement information indicating that the monitored person has moved when the normal operation mode command communication signal is unicast by the operation mode control unit. The mobile communication device further includes a mobile notification processing unit that transmits a mobile notification communication signal containing a signal to a predetermined communication device by the communication unit and enters a sleep state in the power saving operation mode.

  Since such a monitored person monitoring apparatus includes a movement notification processing unit, it is possible to notify the communication apparatus of the movement of the monitored person. For this reason, the monitor can recognize the movement of the monitored person by referring to the communication device.

  In another aspect, in the above-described monitored person monitoring device, when the lighting command communication signal is unicast by the lighting command processing unit, a lighting command indicating that the lighting command communication signal is unicast It further includes a lighting command notification processing unit that transmits a lighting command notification communication signal containing information to a predetermined communication device by the communication unit and enters a sleep state in the power saving operation mode.

  Since such a monitored person monitoring device includes a lighting command notification processing unit, it is possible to notify the communication device of lighting of the illumination unit in the moving direction of the monitored person. For this reason, the monitoring person can recognize lighting of the illumination part in the moving direction of the monitored person by referring to the communication device.

  The monitored person monitoring method according to another aspect of the present invention includes an imaging step of capturing an imaging target in a predetermined range and generating an image of the imaging target by an imaging unit, and the above-described generation generated by the imaging step A presence / absence determination step of determining the presence / absence of a monitored person in the imaging target based on an image of the imaging target, and a case where it is determined by the presence / absence determination step that the monitored person is present in the imaging target And controlling each of the communication unit, the imaging unit, and the presence / absence determining unit in a normal operation mode in which the communication unit for communicating with the outside, the imaging unit and the presence / absence determining unit are in an active state, and the communication Power saving unit that stores a command to shift to a power saving operation mode in which the image capturing unit and the presence / absence determining unit are set in a sleep state When the communication unit broadcasts the operation mode command communication signal and the communication unit receives the power saving operation mode command communication signal from the outside, the communication unit, the imaging unit, and the imaging unit in the power saving operation mode. And an operation mode control step for controlling each of the presence / absence determination units.

  A monitored person monitoring system according to another aspect of the present invention is a monitored person monitoring system including a plurality of monitored person monitoring devices that are connected to be communicable with each other and monitor the monitored person. Each of the plurality of monitored person monitoring devices is any one of the above-described monitored person monitoring devices.

  Such a monitored person monitoring method and a monitored person monitoring system control each of the communication unit, the imaging unit, and the presence / absence determining unit in the normal operation mode when it is determined that the monitored person exists in the imaging target, and Then, the communication unit broadcasts a power saving operation mode command communication signal containing a command to shift to the power saving operation mode. Therefore, when the monitored person is monitored by a plurality of monitored person monitoring devices, the monitored person monitoring apparatus of the own device monitors the monitored person while imaging the range in which the monitored person exists. Other monitored person monitoring devices that target the range where no monitored person is present receive the power saving operation mode command communication signal, and shift to the power saving operation mode. For this reason, the monitored person monitoring method and the monitored person monitoring system can further save power.

  The monitored person monitoring apparatus, the monitored person monitoring method, and the monitored person monitoring system according to the present invention can further save power.

It is a figure which shows the structure of the to-be-monitored person monitoring system in 1st Embodiment. It is a block diagram which shows the structure of the monitoring person monitoring apparatus in the monitoring person monitoring system of 1st Embodiment. It is a sequence diagram which shows operation | movement of the to-be-monitored person monitoring system in 1st Embodiment. It is a flowchart which shows operation | movement of the monitoring subject monitoring apparatus in the monitoring subject monitoring system of 1st Embodiment. It is a figure which shows the structure of the to-be-monitored person monitoring system in 2nd Embodiment. It is a block diagram which shows the structure of the monitoring person monitoring apparatus in the monitoring person monitoring system of 2nd Embodiment. It is a flowchart which shows operation | movement of the monitoring person monitoring apparatus in the monitoring person monitoring system of 2nd Embodiment. It is a figure which shows the structure of the to-be-monitored person monitoring system in 3rd Embodiment. It is a block diagram which shows the structure of the monitoring person monitoring apparatus in the monitoring person monitoring system of 3rd Embodiment. It is a figure which shows the map information table memorize | stored in the memory | storage part in the monitoring person monitoring apparatus of the monitoring person monitoring system of 3rd Embodiment. It is a flowchart which shows operation | movement of the monitoring person monitoring apparatus in the monitoring person monitoring system of 3rd Embodiment.

  Hereinafter, an embodiment according to the present invention will be described with reference to the drawings. In addition, the structure which attached | subjected the same code | symbol in each figure shows that it is the same structure, The description is abbreviate | omitted suitably. In this specification, when referring generically, it shows with the reference symbol which abbreviate | omitted the suffix, and when referring to an individual structure, it shows with the reference symbol which attached the suffix.

(First embodiment)
FIG. 1 is a diagram illustrating a configuration of a monitored person monitoring system according to the first embodiment. FIG. 2 is a block diagram illustrating a configuration of a monitored person monitoring apparatus in the monitored person monitoring system according to the first embodiment.

  The monitored person monitoring system Sa in the first embodiment monitors a monitored person (monitoring target) that is a monitoring target (monitoring target) to be monitored (monitored), and is connected to be communicable with each other. A plurality of monitored person Da (Da-1 to Da-4) for monitoring the monitored person is provided. The monitored person monitoring system Sa is arranged at an appropriate place according to the monitored person. The monitored person (person to be watched over) is, for example, a person who needs nursing due to illness or injury, a person who needs care due to a decrease in physical ability, or a single person living alone. In particular, from the viewpoint of enabling early detection and early action, the monitored person is preferably a person who needs to be detected when a predetermined inconvenient event such as an abnormal state occurs in the person. . For this reason, the monitored person monitoring system Sa is suitably arranged in a building such as a hospital, an elderly welfare facility, or a dwelling unit according to the type of the monitored person Ob.

  In the example shown in FIG. 1, the monitored person monitoring system Sa is arranged in a building having four first to fourth rooms R-1 to R4 allocated as living spaces for the monitored person Ob, and each room Since the monitored person monitoring device Da is arranged in each of the rooms R-1 to R-4 in order to individually monitor R-1 to R-4, the monitored person monitoring device Da includes four It consists of first to fourth monitored person monitoring devices Da-1 to Da-4. These first to fourth rooms R-1 are arranged in an array of 2 rows and 2 columns, and the first room R-1 is adjacent to the second and fourth rooms R-2 and R-4, respectively. The third room R-3 is adjacent to each of the second and fourth rooms R-2, R-4. And the 1st entrance / exit is provided in the wall which divides 1st room R-1 and 2nd room R-2 so that it can come and go between these, and 1st room R-1 and 4th room R- 4 is provided with a second doorway, and the wall separating the third room R-3 and the second room R-2 is provided with a third doorway, and the third room R-3 and the third room R-3. A fourth entrance is provided on the wall separating the four rooms R-4. The third room R-3 is provided with a fifth doorway so that it can go to and from the outside. A first monitored person monitoring device Da-1 is disposed in the first room R-1, a second monitored person monitoring device Da-2 is disposed in the second room R-2, and a third The third monitored person monitoring device Da-3 is disposed in the room R-3, and the fourth monitored person monitoring device Da-4 is disposed in the fourth room R-4. In this way, each of the monitored person monitoring devices Da-1 to Da-4 disposed in each of the rooms R-1 to R-4 captures an image of each of the rooms R-1 to R-4. Generate.

  These first to fourth monitored person monitoring devices Da-1 to Da-4 are wired or wirelessly via a network (network, communication line) such as a LAN (Local Area Network), a telephone network, and a data communication network. It is connected so that it can communicate. The network may be provided with relay stations such as repeaters, bridges, routers, and cross-connects that relay communication signals. In the example illustrated in FIG. 1, the first to fourth monitored person monitoring devices Da-1 to Da-4 are connected to be communicable with each other via a wireless LAN including an access point AP.

  The first to fourth monitored person monitoring devices Da-1 to Da-4 have the same configuration. For example, as shown in FIG. 2, the imaging unit 1, the presence / absence determination unit 22a, and the operation mode are used. A control processing unit 2a including a control unit 23a, an input unit 3, an output unit 4, an interface unit (IF unit) 5, a communication interface unit (communication IF unit) 6, a storage unit 7a, and an illumination unit 8 And a power supply unit 9.

  The imaging unit 1 is an apparatus that is connected to the control processing unit 2a and that captures an imaging target within a predetermined range under the control of the control processing unit 2a and generates an image (image data) of the imaging target. The imaging unit 1 may be a device that generates a visible light image, but in the present embodiment, it is a device that generates an infrared image so that the monitored person Ob can be monitored even in a relatively dark place. For example, in the present embodiment, such an imaging unit 1 has an imaging optical system that forms an infrared optical image of an imaging target on a predetermined imaging surface, and a light receiving surface that matches the imaging surface. An image sensor that is arranged and converts an infrared optical image in the imaging target into an electrical signal, and image data that represents an infrared image in the imaging target by performing image processing on the output of the image sensor And an image signal processor (ISP) for converting the data format of the image data output from the digital camera into a data format that can be handled by the control processing unit 2a. Composed. The image forming optical system of the digital camera is a wide-angle optical system having a field angle (so-called so-called so-called image of the entire room R in which the monitored person Da is arranged) because the object to be imaged is the room R in this embodiment. A wide-angle lens (including a fisheye lens) is preferable, and from this point of view, the digital camera corresponds to the size (width) of the room R in which the monitored person Da is disposed, that is, imaging It is preferable that the imaging optical system can be exchanged according to the range (width) of the imaging target to be captured.

  The input unit 3 is connected to the control processing unit 2a and is, for example, a device that inputs a predetermined instruction to the monitored person monitoring device Da, and is, for example, one or a plurality of switches assigned a predetermined function. More specifically, the input unit 3 includes, for example, a shutdown switch for shutting down the monitored person monitoring device Da and a reset switch for resetting the monitored person monitoring device Da in the present embodiment. . The output unit 4 is a device that is connected to the control processing unit 2a and displays the operating state of the monitored person Da according to the control of the control processing unit 2a. For example, the output unit 4 functions as an indicator and has a predetermined color (for example, green) Or red) or one or a plurality of light emitting diodes (LEDs) that emit light in a predetermined light emitting state (for example, continuous lighting or blinking). The output unit 4 may be omitted.

  The IF unit 5 is a circuit that is connected to the control processing unit 2a and inputs / outputs data to / from an external device according to the control of the control processing unit 2a. For example, an SD standard SD interface circuit or a serial communication method is used. An RS-232C interface circuit, an interface circuit using the Bluetooth (registered trademark) standard, an interface circuit for performing infrared communication such as an IrDA (Infrared Data Association) standard, and an interface circuit using the USB (Universal Serial Bus) standard Etc. In this embodiment, for example, the IF unit 5 includes a microSD connector for inputting / outputting data to / from a microSD memory card.

  The communication IF unit 6 is connected to the control processing unit 2a, and is monitored by another person via a network such as a LAN, a telephone network, and a data communication network in a wired or wireless manner under the control of the control processing unit 2a. This is a communication device for communicating with the device Da. The communication IF unit 6 generates a communication signal containing data to be transferred input from the control processing unit 2a according to a communication protocol used in the network, and generates the generated communication signal via the network. It transmits to the supervisor monitoring apparatus Da. The communication IF unit 6 receives a communication signal from the other monitored person Da through the network, extracts data from the received communication signal, and can process the extracted data by the control processing unit 2a. And output to the control processing unit 2a. For example, in the present embodiment, the communication IF unit 6 transmits and receives communication signals according to the Wi-Fi (Wireless Fidelity) standard, which is one of the wireless LAN standards, and is compatible with IEEE 802.11b / g / n. A module (communication card) is provided.

  The illumination unit 8 is an apparatus that is connected to the control processing unit 2a and illuminates the imaging target in accordance with the control of the control processing unit 2a. In the present embodiment, for example, the illumination unit 8 is configured to include an LED illumination configured to include an LED that emits predetermined light and an LED driver that is a circuit for driving the LED.

  The power supply unit 9 is connected to the control processing unit 2a, and is a device for supplying power to each unit of the monitored person Da that needs power according to the control of the control processing unit 2a. For example, in the present embodiment, the power supply unit 9 converts power supplied from an AC adapter connected to a commercial power supply into power suitable for each part of the monitored person Da (eg, voltage suitable for each part). A power supply circuit is provided.

  The storage unit 7a is a circuit that is connected to the control processing unit 2a and stores various predetermined programs and various predetermined data under the control of the control processing unit 2a. The various predetermined programs include, for example, a control processing program such as a presence / absence determination program for determining the presence / absence of the monitored person Ob in the imaging target based on the image of the imaging target generated by the imaging unit 1. . The storage unit 7a includes, for example, a ROM (Read Only Memory) that is a nonvolatile storage element and an EEPROM (Electrically Erasable Programmable Read Only Memory) such as a flash ROM that is a rewritable nonvolatile storage element. The storage unit 3 is, for example, a DD3 SDRAM (Double-Data-Rate 3 Synchronous Random Access Memory) or the like that becomes a so-called working memory of a CPU (Central Processing Unit) that stores data generated during execution of the predetermined program. RAM (Random Access Memory).

  The control processing unit 2a is a circuit for controlling each unit of the monitored person monitoring device Da according to the function of each unit and monitoring a monitoring target. The control processing unit 2a includes, for example, a CPU (Central Processing Unit) and a PMIC (Power Management Integrated Circuit). The PMIC is a so-called integrated circuit that controls power feeding in order to save power. In the control processing unit 2a, the control processing program is executed, whereby the control unit 21, presence / absence determination unit 22a, and operation mode control unit 23a are functionally configured. The determination unit 221 functions as the presence / absence determination unit 22a. Configured.

  The control unit 21 is for controlling each unit of the monitored person monitoring device Da according to the function of each unit.

  The presence / absence determination unit 22a determines whether or not the monitored person Ob is present in the imaging target based on the image of the imaging target generated by the imaging unit 1, and the determination unit 221 executes this. More specifically, for example, one or a plurality of human body patterns representing the outer shape of the human body composed of the head, trunk, and both feet are stored in advance in the storage unit 7a as one of the various predetermined data, and the determination unit 221 Is based on whether or not an image region that matches the human body pattern exists in the image of the imaging target by pattern matching between the image of the imaging target generated by the imaging unit 1 and the human body pattern. It is determined whether or not the monitored person Ob exists in the list. In addition, for example, a plurality of images in which the monitored person Ob exists in the imaging target and a plurality of images in which the monitored person Ob does not exist in the imaging target are prepared in advance as teacher data. A learning function such as a network is provided, and learning of the determination unit 221 using the teacher data is executed in advance. And the determination part 221 determines whether the to-be-monitored person Ob exists in the image of the said imaging object with the learning function which determines the presence or absence of the to-be-monitored person Ob acquired by this learning.

  The operation mode control unit 23a is the imaging unit 1, the control unit 21 of the control processing unit 2a, the presence / absence determination unit 22a, and the output unit 4 in any one of a plurality of operation modes including a normal operation mode and a power saving operation mode. The IF unit 5 and the communication IF unit 6 are controlled. The normal operation mode is a mode in which the imaging unit 1, the control unit 21 and presence / absence determination unit 22a of the control processing unit 2a, the output unit 4, the IF unit 5, and the communication IF unit 6 are set in an active state. The power saving operation mode is a mode in which the communication IF unit 6 is in an active state, and the imaging unit 1, the control unit 21 and presence / absence determination unit 22a of the control processing unit 2a, the output unit 4, and the IF unit 5 are in a sleep state. is there. In the present embodiment, the operation mode control unit 23a, when the determination unit 221 of the presence / absence determination unit 22a determines that the monitored person Ob exists in the imaging target, the imaging unit 1 in the normal operation mode, A power-saving operation mode command communication signal containing a command for controlling the control unit 21 and the presence / absence determining unit 22a, the output unit 4, the IF unit 5 and the communication IF unit 6 of the control processing unit 2a to shift to the power-saving operation mode. Are transmitted by the communication IF unit 6 and the power saving operation mode command communication signal is received from the outside by the communication IF unit 6, the imaging unit 1 and the control unit 21 of the control processing unit 2a in the power saving operation mode. The presence / absence determination unit 22a, the output unit 4, the IF unit 5, and the communication IF unit 6 are controlled.

  The broadcast communication is preferably a broadcast in which the power saving operation mode command communication signal is transmitted to an unspecified number of other monitored person Da. In the example shown in FIG. 1, when the first monitored person monitoring device Da-1 broadcasts the power saving operation mode command communication signal, the second to fourth monitored person monitoring devices Da-2 to Da-4 A power operation mode command communication signal is received. Preferably, the broadcast communication is multicast for transmitting the power saving operation mode command communication signal to other monitored person monitoring device Da within a predetermined range set in advance. In the example shown in FIG. 1, when the range to be multicast by the first monitored person monitoring device Da-1 is the second and fourth monitored person monitoring devices Da-2 and Da-4, the first monitored person monitoring device When Da-1 multicasts the power saving operation mode command communication signal, the second and fourth monitored person monitoring devices Da-2 and Da-4 receive the power saving operation mode command communication signal. In such a multicast, the monitored person monitoring device Da that wants to always operate in the normal operation mode, that is, always monitor the monitored person Ob, receives the power saving operation mode command communication signal. It is possible to exclude from the monitored person Da that is shifted to the power saving operation mode. For example, the monitored person Da that is disposed in, for example, a bathroom or a toilet, where the predetermined unfavorable event is likely to occur in the monitored person Ob, receives the power saving operation mode command communication signal, and the power saving operation mode Can be excluded from the monitored person Da to be monitored. In general, a plurality of monitored persons Ob live in welfare facilities for the elderly. When each of the plurality of monitored persons Ob is monitored by a plurality of monitored person monitoring devices Da, it is necessary to group the plurality of monitored person monitoring devices Da for each monitored person Ob. A plurality of monitored person monitoring devices Da can be grouped for each monitored person Ob.

  Next, operations of the monitored person monitoring system Sa and the monitored person monitoring apparatus Da in the first embodiment will be described. FIG. 3 is a sequence diagram illustrating the operation of the monitored person monitoring system according to the first embodiment. FIG. 4 is a flowchart showing the operation of the monitored person monitoring apparatus in the monitored person monitoring system of the first embodiment.

  In the monitored person monitoring device Da (Da-1 to Da-4) having such a configuration, the monitored person monitoring device Da is connected to an AC adapter connected to a commercial power source, and power is supplied from the AC adapter to the monitored person. When power is supplied to the monitoring device Da, the control processing unit 2a performs initialization of each necessary unit, and by executing the control processing program, the control processing unit 2a includes the control unit 21, presence / absence determination unit 22a, and operation mode. The control unit 23a is functionally configured, and the presence / absence determination unit 22a is functionally configured with a determination unit 221. Each of the first to fourth monitored person monitoring devices Da-1 to Da-4 operates in the same manner.

  The monitored person monitoring device Da (Da-1 to Da-4) operates in the normal operation mode in FIG. 3 and FIG. 4 under the control of the operation mode control unit 23a of the control processing unit 2a (FIG. 3). C1-1 to C1-4, S1 in FIG. In the example shown in FIG. 1, in each of the first to fourth monitored person monitoring devices Da-1 to Da-4, the imaging unit 1, the control unit 21 of the control processing unit 2a, the presence / absence determination unit 22a, the output unit 4, and the IF Each of the unit 5 and the communication IF unit 6 becomes active under the control of the operation mode control unit 23a.

  Next, the monitored person Da (Da-1 to Da-4) monitors the imaging target 1 under the control of the control unit 21 of the control processing unit 2a, generates an image of the imaging target, Based on the image of the imaging target generated by the imaging unit 1, the determination unit 221 of the presence / absence determining unit 22a determines whether or not the monitored person Ob exists in the imaging target (C2 in FIG. 3). -1 to C2-4, S2 in FIG. As a result of the determination, when the monitored person Ob exists in the imaging target (Yes), the process S3 is executed, and when the monitored person Ob does not exist in the imaging target (No). The process S4 is executed. In the example shown in FIG. 1, since the monitored person Ob exists in the first room R-1 in which the first monitored person monitoring device Da-1 is disposed, the first monitored person monitoring device Da- 1 determines in this process S2 that the monitored person Ob exists in the imaging target, and then executes process S3. On the other hand, the second to fourth monitored person monitoring devices Da-2 to Da-4 determine in this process S2 that the monitored person Ob does not exist in the imaging target, and then execute the process S4. To do.

  In the process S3, the monitored person monitoring device Da (Da-1 to Da-4) is controlled by the operation mode control unit 23a of the control processing unit 2a in the normal operation mode, and the control unit 21 of the control processing unit 2a. The presence / absence determination unit 22a, the output unit 4, the IF unit 5 and the communication IF unit 6 are controlled, and the communication IF unit 6 broadcasts a power saving operation mode command communication signal containing a command to shift to the power saving operation mode. Communication is performed, and the process returns to process S1. In the example shown in FIG. 1, the first monitored person monitoring device Da-1 broadcasts the power saving operation mode command communication signal by the communication IF unit 6 (C3-1 in FIG. 3).

  On the other hand, in process S4, the monitored person monitoring device Da (Da-1 to Da-4) receives the power saving operation mode command communication signal by the communication IF unit 6 by the operation mode control unit 23a of the control processing unit 2a. Determine whether or not. As a result of the determination, when the power saving operation mode command communication signal is received (Yes), the process S5 is executed, and when the power saving operation mode command communication signal is not received (No). The process is returned to process S1.

  In the process S5, the monitored person Da (Da-1 to Da-4) monitors the imaging unit 1, the control unit 21 of the control processing unit 2a, and the presence / absence determination in the power saving operation mode under the control of the operation mode control unit 23a. Each of the unit 22a, the output unit 4, the IF unit 5 and the communication IF unit 6 is controlled, and the process ends.

  In the example shown in FIG. 1, the power-saving operation mode command communication signal broadcast by the first monitored person monitoring device Da-1 is transmitted to the second to fourth monitored person monitoring devices Da-2 to Da-4. The second to fourth monitored person monitoring devices Da-2 to Da-4 received by the unit 6 execute the process S5 and operate in the power saving operation mode (C4-2 to C4 in FIG. 3). -4).

  As described above, the monitored person monitoring system Sa, the monitored person monitoring device Da, and the monitored person monitoring method implemented in the first embodiment determine that the monitored person Ob exists in the imaging target. In this case, the imaging unit 1, the control unit 21 of the control processing unit 2a, the presence / absence determination unit 22a, the output unit 4, the IF unit 5 and the communication IF unit 6 are controlled in the normal operation mode, and the power saving operation is performed. The communication IF unit 6 broadcasts the power-saving operation mode command communication signal containing the command to shift to the mode. Accordingly, when the monitored person Ob is monitored by a plurality of monitored person monitoring devices Da, the monitored person monitoring apparatus Da (shown in FIG. 1) of the subject apparatus whose imaging target is the range where the monitored person Ob exists. In the example, the first monitored person monitoring device Da-1) monitors the monitored person Ob, while the other monitored person monitoring device Da (FIG. 1) targets the range where the monitored person Ob does not exist. In the example shown in FIG. 2, the second to fourth monitored person monitoring devices Da-2 to Da-4) receive the power saving operation mode command communication signal and shift to the power saving operation mode. For this reason, the monitored person monitoring system Sa, the monitored person monitoring apparatus Da, and the monitored person monitoring method implemented therein can be further reduced in power consumption in the first embodiment.

Next, another embodiment will be described.
(Second Embodiment)
The monitored person monitoring system, the monitored person monitoring apparatus and the monitored person monitoring method implemented in the second embodiment are the monitored person monitoring system Sa, the monitored person monitoring apparatus Da and the same in the first embodiment. Compared with the implemented monitoring target person monitoring method, the abnormality of the monitored person Ob is further determined.

  FIG. 5 is a diagram illustrating a configuration of a monitored person monitoring system according to the second embodiment. FIG. 6 is a block diagram illustrating a configuration of a monitored person monitoring apparatus in the monitored person monitoring system according to the second embodiment.

  As shown in FIG. 5, the monitored person monitoring system Sb in the second embodiment is connected to each other so as to be communicable and monitors the monitored person Ob, similarly to the monitored person monitoring system Sa in the first embodiment. Monitored person monitoring device Db (Db-1 to Db-4). The monitored person monitoring system Sb in the second embodiment further includes a communication terminal device TA that receives notification of an abnormality that has occurred in the monitored person Ob.

  The communication terminal device TA has a communication function and a display function, is communicably connected to the monitored person monitoring device Db, and displays information contained in a communication signal transmitted from the monitored person monitoring device Db. . Such a communication terminal device TA can be configured by a portable communication terminal device such as a so-called tablet computer, a smartphone, or a mobile phone.

  The monitored person monitoring device Db of the second embodiment used for the monitored person monitoring system Sb of the second embodiment is, for example, as shown in FIG. 6, the imaging unit 1, the presence / absence determining unit 22 b, and the operation mode control unit. The control processing unit 2b including the input unit 23b, the input unit 3, the output unit 4, the IF unit 5, the communication IF unit 6, the storage unit 7b, the illumination unit 8, and the power supply unit 9 are provided. The imaging IF 1, the input unit 3, the output unit 4, the IF unit 5, the communication IF unit 6, the illumination unit 8, and the power supply unit 9 in the monitored person monitoring device Db of the second embodiment are respectively connected to the communication IF unit 6. The imaging unit 1 and the input unit in the monitored person monitoring device Da of the first embodiment, except that in this embodiment, not only the other monitored person monitoring device Db but also the communication terminal device TA communicates via the access point AP. 3, the output unit 4, the IF unit 5, the communication IF unit 6, the illumination unit 8, and the power supply unit 9, and thus description thereof is omitted.

  Similar to the storage unit 7a, the storage unit 7b is a circuit that is connected to the control processing unit 2b and stores various predetermined programs and various predetermined data in accordance with the control of the control processing unit 2b. In the present embodiment, as the various predetermined programs, the control processing program determines, for example, the presence or absence of the monitored person Ob in the imaging target based on the image of the imaging target generated by the imaging unit 1. In addition to the presence / absence determination program, the presence / absence of body movement in the monitored subject Ob based on the image of the imaging target generated by the imaging unit 1 when it is determined that the monitored subject Ob exists in the imaging target. Detecting and detecting a body movement determination program for determining whether or not there is no body movement in the monitored person Ob, and an imaging unit when determining that the monitored person Ob exists in the imaging target The presence or absence of body movement in the monitored person Ob is detected based on the image of the imaging target generated by 1 and whether or not the monitored person Ob has no body movement for a second time longer than the first time. When the determination is made and it is determined that there is no body movement in the monitored person Ob during the second time, an abnormality determination communication signal containing abnormality determination information indicating that an abnormality has occurred in the monitored person Ob is communicated An abnormality determination program that is transmitted to the communication terminal apparatus TA by the IF unit 6 is included.

  And the memory | storage part 7b is functionally provided with the notification destination memory | storage part 71 which memorize | stores the destination information regarding the destination of the communication terminal device TA which is a notification destination of the said abnormality determination information. The destination information of the communication terminal apparatus TA is, for example, a telephone number, a mail address, an IP address, etc. of the communication terminal apparatus TA.

  Similarly to the control processing unit 2a, the control processing unit 2b is a circuit for controlling each unit of the monitored person monitoring device Db according to the function of each unit and monitoring the monitoring target. In the present embodiment, the control processing unit 2b executes the control processing program, so that the control unit 21, the presence / absence determination unit 22b, and the operation mode control unit 23b are functionally configured. The determination unit 221, the body movement determination unit 222, and the abnormality determination unit 223 are functionally configured.

  The control unit 21 in the second embodiment is the same as the control unit 21 in the first embodiment, and controls each unit of the monitored person monitoring device Db according to the function of each unit.

  Similar to the presence / absence determination unit 22a of the first embodiment, the presence / absence determination unit 22b determines the presence / absence of the monitored person Ob in the imaging target based on the image of the imaging target generated by the imaging unit 1. Yes, the determination unit 221 executes this.

  In the present embodiment, when the presence / absence determination unit 22b determines that the monitored person Ob exists in the imaging target, the presence / absence determination unit 22b determines whether the monitored person Ob is based on the image of the imaging target generated by the imaging unit 1. The presence or absence of body movement is detected, and it is determined whether or not there is no body movement in the monitored person Ob during the first time, and the body movement determination unit 222 executes this. More specifically, the body movement determination unit 222, for example, uses the above-described pattern matching or learning function to identify the monitored subject Ob from each of the imaging target images generated by the imaging unit 1 at different times (timing), for example. The presence or absence of body movement is determined by comparing them. Alternatively, the body movement determination unit 222 determines the presence or absence of a moving body by, for example, the background difference method. In this background subtraction method, a background image is obtained in advance and stored in advance in the storage unit 7b as one of the various predetermined data, and a moving object is calculated from the difference image between the image generated by the imaging unit 1 and the background image. Determine presence or absence. In these cases, the body movement determination unit 222 determines the body movement of the monitored person Ob for each of the images to be imaged generated by the imaging unit 1 at a predetermined sampling interval (for example, 15 frames per second). The presence / absence is determined. If it is determined that there is no body movement, the timer is reset and started, the duration time without body movement is measured, and it is determined whether there is no body movement in the monitored person Ob during the first time. .

  Further, in the present embodiment, the presence / absence determination unit 22b determines whether the monitored person Ob is present in the imaging target based on the image of the imaging target generated by the imaging unit 1. The presence or absence of body movement is detected, it is determined whether or not there is no body movement in the monitored person Ob for a second time longer than the first time, and the body movement is performed on the monitored person Ob during the second time period. The abnormality determination communication signal containing the abnormality determination information indicating that an abnormality has occurred in the monitored person Ob is transmitted to the communication terminal device TA by the communication IF unit 6 when it is determined that there is no abnormality. The abnormality determination unit 223 executes this. More specifically, the abnormality determination unit 223 determines the presence or absence of body movement in the monitored person Ob for each of the images to be imaged generated by the imaging unit 1 at a predetermined sampling interval, as with the body movement determination unit 222. If it is determined that there is no body movement, the timer is reset and started, the duration time without body movement is measured, and it is determined whether there is no body movement in the monitored person Ob during the second time. When the abnormality determination unit 223 determines that there is no body movement in the monitored person Ob during the second time, the abnormality determination unit 223 acquires destination information from the notification destination storage unit 71 of the storage unit 7b, and acquires the acquired destination. The communication IF unit 6 transmits the abnormality determination communication signal to the communication terminal apparatus TA using the information. The body motion determination unit 222 executes a determination process for the presence or absence of body movement in the monitored person Ob, and a determination process for determining whether or not the monitored person Ob did not have a body movement during the second time. The monitored person monitoring device Db may be configured such that the unit 223 receives the processing result of the body movement determination unit 222 and executes the transmission process of the abnormality determination communication signal.

  Similar to the operation mode control unit 23a of the first embodiment, the operation mode control unit 23b controls the imaging unit 1 in any one of a plurality of operation modes including the normal operation mode and the power saving operation mode. The control unit 21 and the presence / absence determination unit 22b, the output unit 4, the IF unit 5, and the communication IF unit 6 of the processing unit 2b are controlled. The operation mode control unit 23b controls the imaging unit 1 and the control processing unit 2b in the normal operation mode when the determination unit 221 of the presence / absence determination unit 22b determines that the monitored person Ob exists in the imaging target. 21 and presence / absence determination unit 22b, output unit 4, IF unit 5 and communication IF unit 6 are controlled, and the power-saving operation mode command communication signal is broadcasted by communication IF unit 6, and the power-saving operation mode is externally transmitted. When the command communication signal is received by the communication IF unit 6, the imaging unit 1, the control unit 21 and the presence / absence determination unit 22b of the control processing unit 2b, the output unit 4, the IF unit 5 and the communication IF unit 6 in the power saving operation mode. Control each one. Here, in the present embodiment, the operation mode control unit 23b performs the operation of broadcasting the power saving operation mode command communication signal by the communication IF unit 6 by the body movement determination unit 222 for the first time. Executed when it is determined that there is no body movement in the observer Ob.

  Next, operations of the monitored person monitoring system Sb and the monitored person monitoring device Db in the second embodiment will be described. FIG. 7 is a flowchart showing the operation of the monitored person monitoring apparatus in the monitored person monitoring system of the second embodiment.

  In the monitored person monitoring device Db (Db-1 to Db-4) having such a configuration, the monitored person monitoring device Db is connected to an AC adapter connected to a commercial power source, and power is supplied from the AC adapter to the monitored person. When power is supplied to the monitoring device Db, the control processing unit 2b performs initialization of each necessary unit, and by executing the control processing program, the control processing unit 2b includes the control unit 21, presence / absence determination unit 22b, and operation mode. The control unit 23b is functionally configured, and the presence / absence determination unit 22b is functionally configured with a determination unit 221, a body movement determination unit 222, and an abnormality determination unit 223. Each of the first to fourth monitored person monitoring devices Db-1 to Db-4 operates in the same manner.

  The monitored person monitoring device Db (Db-1 to Db-4) executes the process S21 described later when it is determined in FIG. 7 that the monitored person Ob exists (Yes). The process S1, the process S2, the process S4, and the process S5 according to the first embodiment operate in the same manner. The process S1 operates in the normal operation mode. In the process S2, the presence or absence of the monitored person Ob is determined. When it is determined that Ob does not exist (No), in step S4, it is determined whether or not a power saving operation mode command communication signal is received, and when no power saving operation mode command communication signal is received (No), processing is performed. If the power saving operation mode command communication signal is received (Yes), the operation is performed in the power saving operation mode in the processing S5, and the processing is terminated.

  On the other hand, if it is determined that the monitored person Ob exists as a result of the determination in the process S2 (Yes), in this embodiment, the monitored person monitoring device Db (Db-1 to Db-4) is present or not. The body movement determination unit 222 of the determination unit 22b determines whether or not there was no body movement during the first time (S21). As a result of this determination, when it is not determined that there was no body movement during the first time (No), that is, when it is determined that the monitored person Ob had body movement before the first time passed. In (No), the monitored person monitoring device Db (Db-1 to Db-4) returns the process to the process S1. As a result of the determination, when it is determined that there is no body movement during the first time (Yes), the monitored person monitoring device Db (Db-1 to Db-4) is in the operation mode of the control processing unit 2b. Under the control of the control unit 23b, the imaging unit 1, the control unit 21 and the presence / absence determination unit 22b of the control processing unit 2b, the output unit 4, the IF unit 5 and the communication IF unit 6 are controlled in the normal operation mode, and the power saving operation mode is controlled. The command communication signal is broadcast by the communication IF unit 6 (S22). In the example shown in FIG. 5, the first monitored person monitoring device Db-1 broadcasts the power saving operation mode command communication signal by the communication IF unit 6 and receives the power saving operation mode command communication signal. The 4-monitored person monitoring device Db performs each process of the above-described processes S4 and S5 and operates in the power saving operation mode.

  Subsequently, the monitored person monitoring device Db (Db-1 to Db-4) determines whether or not there is no body movement during the second time by the abnormality determination unit 223 of the presence determination unit 22b (S23). . As a result of this determination, when it is not determined that there was no body movement during the second time (No), that is, when it is determined that the monitored person Ob had body movement before the second time passed. In (No), the monitored person monitoring device Db (Db-1 to Db-4) returns the process to the process S1. As a result of the determination, when it is determined that there is no body movement during the second time (Yes), the monitored person monitoring device Db (Db-1 to Db-4) is stored by the abnormality determination unit 223. The destination information is acquired from the notification destination storage unit 71 of the unit 7b, the abnormality determination communication signal is transmitted to the communication terminal apparatus TA by the communication IF unit 6 using the acquired destination information, and the process returns to the process S1 (S24). ). The communication terminal apparatus TA that has received the abnormality determination communication signal displays the abnormality determination information. A monitor such as a nurse can recognize the abnormality of the monitored person Ob by referring to the abnormality determination information displayed on the communication terminal device TA.

  As described above, the monitored person monitoring system Sb, the monitored person monitoring device Db and the monitored person monitoring method implemented in the second embodiment are the monitored person monitoring system Sa, the monitored person in the first embodiment. Similar to the supervisor monitoring device Da and the supervisor monitoring method implemented therein, when the supervisor Ob is monitored by a plurality of supervisor monitoring devices Db, the range in which the supervisor Ob is present is determined. The monitored person monitoring device Db (the first monitored person monitoring device Db-1 in the example shown in FIG. 5) that is the imaging target monitors the monitored person Ob, while the monitored person Ob exists. The other monitored person monitoring devices Db (second to fourth monitored person monitoring devices Db-2 to Db-4 in the example shown in FIG. 5) that are not picked up in the imaging range are connected to the power saving operation mode command communication signal. The power saving operation To shift the mode. For this reason, the monitored person monitoring system Sb, the monitored person monitoring apparatus Db, and the monitored person monitoring method mounted thereon can be further reduced in power consumption in the second embodiment.

  Then, if the monitored person Ob broadcasts the power saving operation mode command communication signal according to the determination of the presence of the monitored person Ob, for example, while moving, the monitored person monitoring apparatus D at the destination moves to the power saving operation. As a result of operating in the mode, the monitored person Ob cannot be monitored. However, the monitored person monitoring system Sb, the monitored person monitoring device Db and the monitored person monitoring method implemented in the second embodiment are the first. When it is determined that there is no movement in the monitored person Ob during the time, the power saving operation mode command communication signal is broadcasted by the communication IF unit 6, so that the monitored person Ob can be monitored appropriately. Thus, further power saving can be achieved.

  In addition, since the monitored person monitoring system Sb, the monitored person monitoring device Db and the monitored person monitoring method implemented in the second embodiment perform abnormality determination processing, the abnormality of the monitored person Ob can be determined. The abnormality of the monitored person Ob can be notified to the communication terminal device TA. Therefore, a monitor such as a nurse can recognize the abnormality of the monitored person Ob by referring to the communication terminal device TA.

Next, another embodiment will be described.
(Third embodiment)
The monitored person monitoring system, the monitored person monitoring apparatus, and the monitored person monitoring method implemented in the third embodiment are configured so that the monitored person appropriately switches the operation mode according to the movement of the monitored person Ob. It is intended to save power while properly monitoring Ob. The function of appropriately monitoring the monitored person Ob by appropriately switching the operation mode according to the movement of the monitored person Ob as described above is a function of saving power while monitoring the monitored person Ob system Sb in the second embodiment. Although it can be added to the monitored person monitoring device Db and the monitored person monitoring method implemented therein, here, the monitored person monitoring system Sa, the monitored person monitoring device Da in the first embodiment, and the monitored object mounted thereon. As an embodiment in which the above function is added to the supervisor monitoring method, a supervisor monitoring system, a supervisor monitoring device and a supervisor monitoring method implemented in the third embodiment will be described below. Note that the monitored person monitoring system Sb, the monitored person monitoring apparatus Db, and the monitored person monitoring method implemented in the second embodiment can add the above functions in the same manner as described below.

  FIG. 8 is a diagram illustrating a configuration of a monitored person monitoring system according to the third embodiment. FIG. 9 is a block diagram illustrating a configuration of a monitored person monitoring apparatus in the monitored person monitoring system according to the third embodiment. FIG. 10 is a diagram illustrating a map information table stored in the storage unit in the monitored person monitoring apparatus of the monitored person monitoring system according to the third embodiment.

  As shown in FIG. 8, the monitored person monitoring system Sc in the third embodiment is connected to each other so as to be communicable and monitors the monitored person Ob, similarly to the monitored person monitoring system Sa in the first embodiment. Monitored person monitoring device Db (Db-1 to Db-4). The monitored person monitoring system Sc in the third embodiment further includes a communication terminal device TA that receives notification of movement of the monitored person Oc and lighting of the lighting unit 8.

  The monitored person monitoring device Dc of the third embodiment used for the monitored person monitoring system Sc of the third embodiment includes, for example, an imaging unit 1, an existence determination unit 22a, and an operation mode control unit as illustrated in FIG. The control processing unit 2c including the control unit 23c, the input unit 3, the output unit 4, the IF unit 5, the communication IF unit 6, the storage unit 7b, the illumination unit 8, and the power supply unit 9 are provided. The imaging unit 1, the input unit 3, the output unit 4, the IF unit 5, the communication IF unit 6, the illumination unit 8, and the power supply unit 9 in the monitored person monitoring device Dc of the third embodiment are respectively connected to the illumination unit 8. The imaging unit 1, the input unit 3, the output unit 4, the IF unit 5 and the communication in the monitored person monitoring device Da of the first embodiment except that the normal operation mode becomes active and the power saving operation mode becomes sleep. Since it is the same as the IF unit 6, the illumination unit 8, and the power supply unit 9, description thereof is omitted.

  Similar to the storage unit 7a, the storage unit 7c is a circuit that is connected to the control processing unit 2c and stores various predetermined programs and various predetermined data under the control of the control processing unit 2c. In the present embodiment, as the various predetermined programs, the control processing program determines, for example, the presence or absence of the monitored person Ob in the imaging target based on the image of the imaging target generated by the imaging unit 1. In addition to the presence / absence determination program to be monitored, when it is determined that the monitored person Ob exists in the imaging target, the monitored person Ob with respect to the arrangement position of the own device based on the image of the imaging target generated by the imaging unit 1 The movement direction detection program for detecting the movement direction of the person to be monitored, and the other monitored person monitoring device Dc arranged in the movement direction of the monitored person Ob detected by the movement direction detection program are stored in the map storage unit 72 described later. The normal operation mode that contains a command to search from the arranged position map and shift to the other monitored person monitoring device Dc searched for the normal operation mode When the command communication signal is unicast by the communication IF unit 6 and the normal operation mode command communication signal is received from the outside by the communication IF unit 6, the imaging unit 1 and the control processing unit 2c perform later-described control in the normal operation mode. Unit 21, presence / absence determination unit 22a, movement direction detection unit 24, lighting command processing unit 25, illumination control unit 26, movement notification processing unit 27 and lighting command notification processing unit 28, output unit 4, IF unit 5 and communication IF unit 6 Operation mode switching program for controlling each of them, an arrangement position map in which other monitored person monitoring devices Dc arranged in the moving direction of the monitored person Ob detected by the moving direction detection program are stored in the map storage unit 72 The communication IF unit 6 sends a lighting command communication signal containing a command to turn on the illumination unit 8 to the other monitored person monitoring device Dc searched. Usually, the lighting command processing program to be unicast, the lighting control program for lighting the lighting unit 8 with the lighting unit 8 in the active state when the lighting command communication signal is received from the outside by the communication IF unit 6, and the operation mode switching program. A movement notification processing program for transmitting movement notification communication signals containing movement information indicating that the monitored person Ob has moved to the communication terminal device TA by the communication IF unit 6 when the operation mode command communication signal is unicast; and When the lighting command communication signal is unicast by the lighting command processing program, a lighting command notification communication signal containing lighting command information indicating that the lighting command communication signal is unicast is transmitted by the communication IF unit 6 to a predetermined value. A lighting command notification processing program to be transmitted to the communication device is included.

  And the memory | storage part 7c is functionally provided with the notification destination memory | storage part 71 similar to 2nd Embodiment, and also in this embodiment, the arrangement position of the other monitoring subject monitoring apparatus Dc with respect to the arrangement position of an own machine is shown. A map storage unit 72 that stores an arrangement position map to be expressed is functionally provided. In the present embodiment, the arrangement position map is stored in the map storage unit 72 in a table format, for example. For example, as shown in FIG. 10, the table-type arrangement position map (arrangement position map table) MT includes a movement direction field 721 for registering a movement direction and other monitored persons arranged in the movement direction. And another monitored person monitoring device field 722 for registering identification information for identifying and identifying the monitoring device Dc, and has a record for each moving direction. In this embodiment, since a predetermined communication signal is transmitted to the monitored person monitoring device Dc at the movement destination as will be described later, destination information such as an IP address is used as the identification information.

  The arrangement position map table MT illustrated in FIG. 10 is stored in the map storage unit 72 of the first monitored person monitoring device Dc-1. In the arrangement position map table MT shown in FIG. 10, the right direction DR1 of FIG. 8 is registered in the movement direction field 721 in the first record, and is arranged in the right direction DR1 of FIG. The IP address of the second monitored person monitoring device Dc-2 is registered in the other monitored person monitoring device field 722. In the second record, the lower right direction DR2 in FIG. 8 is registered in the movement direction field 721, and the third monitored person Dc-3 is arranged in the lower right direction DR2 in FIG. Is registered in the other monitored person field 722. In the third record, the downward direction DR3 in FIG. 8 is registered in the movement direction field 721, and the fourth monitored person monitoring device Dc-4 disposed in the downward direction DR3 in FIG. Is registered in the other monitored person field 722.

  Similarly to the control processing unit 2a, the control processing unit 2c is a circuit for controlling each unit of the monitored person monitoring device Dc according to the function of each unit and monitoring the monitoring target. In the present embodiment, a control processing program is executed in the control processing unit 2c, whereby the control unit 21, the presence / absence determination unit 22a, the operation mode control unit 23c, the moving direction detection unit 24, and the lighting command processing unit 25. The lighting control unit 26, the movement notification processing unit 27, and the lighting command notification processing unit 28 are functionally configured, and the determination unit 221 is functionally configured in the presence / absence determination unit 22a.

  The control unit 21 in the third embodiment is the same as the control unit 21 in the first embodiment, and is for controlling each unit of the monitored person monitoring device Dc according to the function of each unit.

  The presence / absence determination unit 22a is similar to the presence / absence determination unit 22a of the first embodiment, and determines whether or not the monitored person Ob is present in the imaging target based on the image of the imaging target generated by the imaging unit 1. The determination unit 221 executes this.

  The movement direction detection unit 24 determines whether or not the monitored person Ob is moving when it is determined that the monitored person Ob exists in the imaging target, and when the monitored person Ob is moving. The moving direction of the monitored person Ob with respect to the arrangement position of the own device is detected based on the image of the imaging target generated by the imaging unit 1. More specifically, the moving direction detection unit 24 selects, for example, the above-described pattern matching and learning function from the image of the imaging target generated by the imaging unit 1 at different times (timing). By comparing these, the presence / absence of movement of the monitored person Ob and the movement direction (for example, a motion vector) are detected. In the present embodiment, the movement direction detection unit 24 performs the above-described movement determination process and movement direction detection process in the monitored person Ob for each of the images to be imaged generated by the imaging unit 1 at a predetermined sampling interval. . Then, the moving direction detection unit 24 becomes active in the normal operation mode and sleeps in the power saving operation mode.

  The lighting command processing unit 25 is another monitored person monitoring device Dc (in this embodiment, other monitored person monitoring device Dc) arranged in the moving direction of the monitored person Ob detected by the moving direction detecting unit 24. The destination information) is searched from the arrangement position map table MT stored in the map storage unit 72, and a lighting command communication signal containing a command to turn on the illumination unit 8 is sent to the other monitored person monitoring device Dc. Unicasting is performed by the communication IF unit 6. Then, the lighting command processing unit 25 enters an active state in the normal operation mode and enters a sleep state in the power saving operation mode.

  The illumination control unit 26 controls turning on / off of the illumination unit 8. The illumination control unit 26 becomes active in the normal operation mode and sleeps in the power saving operation mode.

  When the operation mode control unit 23c unicasts the normal operation mode command communication signal, the movement notification processing unit 27 transmits a movement notification communication signal containing movement information indicating that the monitored person Ob has moved. 6 to the communication terminal device TA. The movement notification processing unit 27 becomes active in the normal operation mode and sleeps in the power saving operation mode.

  When the lighting command processing unit 25 unicasts the lighting command communication signal, the lighting command notification processing unit 28 receives a lighting command notification communication signal containing lighting command information indicating that the lighting command communication signal is unicast. The communication IF unit 6 transmits the data to the communication terminal device TA. The lighting command notification processing unit 28 becomes active in the normal operation mode and sleeps in the power saving operation mode.

  Similar to the operation mode control unit 23a of the first embodiment, the operation mode control unit 23c controls the imaging unit 1 in any one of a plurality of operation modes including the normal operation mode and the power saving operation mode. Control unit 21, presence / absence determination unit 22a, moving direction detection unit 24, lighting command processing unit 25, lighting control unit 26, movement notification processing unit 27 and lighting command notification processing unit 28, output unit 4, IF unit 5 in processing unit 2c. In addition, the communication IF unit 6 is controlled. The operation mode control unit 23c controls the image capturing unit 1 and the control processing unit 2c in the normal operation mode when the determination unit 221 of the presence / absence determination unit 22a determines that the monitored person Ob exists in the imaging target. 21, existence determination unit 22 a, movement direction detection unit 24, lighting command processing unit 25, illumination control unit 26, movement notification processing unit 27 and lighting command notification processing unit 28, output unit 4, IF unit 5, and communication IF unit 6, respectively. When the power saving operation mode command communication signal is broadcasted by the communication IF unit 6 and the power saving operation mode command communication signal is received from the outside by the communication IF unit 6, the power saving operation mode command signal is transmitted in the power saving operation mode. The imaging unit 1, the control unit 21 in the control processing unit 2c, the presence / absence determination unit 22a, the movement direction detection unit 24, the lighting command processing unit 25, the illumination control unit 26, the movement notification processing unit 27, and Lighting command notification processing unit 28, controls each output unit 4, IF 5 and a communication IF unit 6.

  In the present embodiment, the operation mode control unit 23c is provided with another monitored person monitoring device Dc (in the present embodiment, the other monitored person Ob) that is arranged in the moving direction of the monitored person Ob detected by the moving direction detection unit 24. The destination information of the monitored person monitoring device Dc) is retrieved from the arrangement position map table MT stored in the map storage unit 72, and a command for causing the retrieved other monitored person monitoring devices to shift to the normal operation mode is issued. The received normal operation mode command communication signal is unicast by the communication IF unit 6, and the operation mode control unit 23 c receives the normal operation mode command communication signal from the outside by the communication IF unit 6. The imaging unit 1, the control unit 21 in the control processing unit 2c, the presence / absence determination unit 22a, the movement direction detection unit 24, the lighting command processing unit 25, the illumination control unit 26, and the movement notification process Parts 27 and lighting command notification processing unit 28, controls each output unit 4, IF 5 and a communication IF unit 6.

  Moreover, the operation mode control part 23c makes the illumination part 8 light by the illumination control part 26 by making the illumination part 8 into an active state, when the said lighting command communication signal is received by the communication IF part 6 from the outside.

  Further, the operation mode control unit 23c unicasts the normal operation mode command communication signal described above by the communication IF unit 6, and then the imaging unit 1, the control unit 21 in the control processing unit 2c, and the presence / absence determination in the power saving operation mode. Control unit 22a, moving direction detection unit 24, lighting command processing unit 25, illumination control unit 26, movement notification processing unit 27 and lighting command notification processing unit 28, output unit 4, IF unit 5 and communication IF unit 6 are controlled. The operation mode control unit 23c unicasts the lighting command communication signal by the lighting command processing unit 25 by the communication IF unit 6, and then the imaging unit 1, the control unit 21 in the control processing unit 2c, and the presence / absence determination in the power saving operation mode. Control unit 22a, moving direction detection unit 24, lighting command processing unit 25, illumination control unit 26, movement notification processing unit 27 and lighting command notification processing unit 28, output unit 4, IF unit 5 and communication IF unit 6 are controlled. More specifically, in the present embodiment, the operation mode control unit 23c unicasts the normal operation mode command communication signal and the lighting command communication signal described above with the communication IF unit 6, and then in the power saving operation mode. Image pickup unit 1, control unit 21 in control processing unit 2c, presence / absence determination unit 22a, movement direction detection unit 24, lighting command processing unit 25, lighting control unit 26, movement notification processing unit 27, lighting command notification processing unit 28, output unit 4, controls the IF unit 5 and the communication IF unit 6, respectively.

  Next, operations of the monitored person monitoring system Sc and the monitored person monitoring device Dc in the third embodiment will be described. FIG. 11 is a flowchart showing the operation of the monitored person monitoring apparatus in the monitored person monitoring system of the third embodiment. FIG. 11A shows the operation after startup, and FIG. 11B shows the operation in the power saving operation mode.

  In the monitored person monitoring device Dc (Dc-1 to Dc-4) having such a configuration, the monitored person monitoring device Dc is connected to an AC adapter connected to a commercial power source, and power is supplied from the AC adapter to the monitored person. When power is supplied to the monitoring device Dc, the control processing unit 2c executes necessary initialization, and the control processing unit 2c includes the control unit 21, the presence / absence determination unit 22a, and the operation mode by executing the control processing program. The control unit 23c, the movement direction detection unit 24, the lighting command processing unit 25, the illumination control unit 26, the movement notification processing unit 27, and the lighting command notification processing unit 28 are functionally configured, and the presence / absence determination unit 22a includes a determination unit 221. Is functionally configured. Each of the first to fourth monitored person monitoring devices Dc-1 to Dc-4 operates in the same manner.

  The monitored person monitoring device Dc (Dc-1 to Dc-4) performs processing S1 to S1 in the first embodiment except that in FIG. 11A, processing S31 described later is executed subsequent to processing S3. The process S5 is performed in the same manner as the process S5. The process S1 operates in the normal operation mode. In the process S2, the presence or absence of the monitored person Ob is determined, and if it is determined that the monitored person Ob exists (Yes), the process S3 Then, when the power-saving operation mode command communication signal is broadcast and it is determined that the monitored person Ob does not exist (No), in step S4, it is determined whether or not the power-saving operation mode command communication signal has been received, and the power-saving operation is performed. When the mode command communication signal is not received (No), the process returns to the process S1, while when the power saving operation mode command communication signal is received (Yes), the power saving operation mode is selected in the process S5. In motion Then, the process is terminated.

  In the process S31 executed after executing the above-described process S3, the monitored person Ob is moved in the monitored person monitoring device Dc (Dc-1 to Dc-4) by the movement direction detecting unit 24 of the control processing unit 2c. It is determined whether or not. As a result of this determination, when it is determined that the monitored person Ob has not moved (No), the monitored person monitoring device Dc returns the process to step S31. That is, the determination process of the presence or absence of movement in the monitored person Ob is repeatedly executed.

  On the other hand, when it is determined that the monitored person Ob is moving as a result of the determination (Yes), the monitored person monitoring device Dc uses the movement direction detection unit 24 to move the monitored person Ob (for example, Motion vectors, etc.) are detected (S32).

  Next, the monitored person monitoring device Dc (Dc-1 to Dc-4) is arranged in the moving direction of the monitored person Ob detected by the moving direction detecting unit 24 by the operation mode control unit 23c of the control processing unit 2c. The other monitored person monitoring device Dc (in this embodiment, the destination information of the other monitored person monitoring device Dc) is searched from the arrangement position map table MT stored in the map storage unit 72, and this search is performed. The normal operation mode command communication signal is unicast to another monitored person monitoring device by the communication IF unit 6, and the monitored person detected by the moving direction detecting unit 24 by the lighting command processing unit 25 of the control processing unit 2c. Other monitored person monitoring devices Dc (in this embodiment, destination information of other monitored person monitoring devices Dc) arranged in the moving direction of Ob are stored in the map storage unit 72 in the arrangement position map. Retrieved from tables MT, to the retrieved other person being monitored monitoring device Dc, unicast by the communication IF section 6 of the lighting command communication signal (S33).

  The normal operation mode command communication signal and the lighting command communication signal may be combined into one communication signal. More specifically, the monitored person monitoring device Dc (Dc-1 to Dc-4) is arranged in the moving direction of the monitored person Ob detected by the moving direction detecting unit 24 by the control processing unit 2c. The other monitored person monitoring device Dc (destination information of the other monitored person monitoring device Dc in this embodiment) is searched from the arrangement position map table MT stored in the map storage unit 72, and the searched other monitored person is searched. The communication IF unit 6 unicasts a communication signal (normal operation mode lighting command communication signal) containing a command to shift to the normal operation mode and a command to turn on the illumination unit 8 to the supervisor monitoring device.

  In the example shown in FIG. 8, the monitored person Ob exists in the first room R-1, and has moved from the first room R-1 to the fourth room R-4. Therefore, in this example, the first monitored person monitoring device Dc-1 determines that the monitored person Ob exists in the process S2 via the process S1, and the power saving operation mode command communication signal is transmitted in the process S3. Broadcast. The second to fourth monitored person monitoring devices Dc-2 to Dc-4 that have received the broadcast power saving operation mode command communication signal are saved in step S5 through steps S1, S2, and S4. Operates in power operating mode. Then, in the first monitored person monitoring device Dc-1, in the process S32 through the process S31, the monitored person Ob is disposed in the downward direction DR3 in FIG. 8, that is, the fourth monitored person monitoring device Dc-4. It is detected that the vehicle is moving in the direction DR3, and the normal operation mode command communication signal and the lighting command communication signal are unicast by the communication IF unit 6 to the fourth monitored person monitoring device Dc-4 in step S33. To do.

  Here, the monitored person monitoring device Dc (Dc-1 to Dc-4) operating in the power saving operation mode operates as shown in FIG. That is, the monitored person monitoring device Dc (Dc-1 to Dc-4) determines whether or not the communication IF unit 6 has received the normal operation mode command communication signal from the outside by the operation mode control unit 23c ( S41). As a result of this determination, if it is determined that the normal operation mode command communication signal has not been received (No), the monitored person Dc returns the process to step S41. On the other hand, when it is determined that the normal operation mode command communication signal is received as a result of the determination (Yes), the monitored person monitoring device Dc executes the next process S42. That is, the monitored person monitoring device Dc repeats the process S41 until the normal operation mode command communication signal is received.

  In process S42, the monitored person monitoring device Dc (Dc-1 to Dc-4) is operated by the operation mode control unit 23c in the normal operation mode, the imaging unit 1, the control unit 21 in the control processing unit 2c, and the presence / absence determination unit 22a. The moving direction detection unit 24, the lighting command processing unit 25, the illumination control unit 26, the movement notification processing unit 27, the lighting command notification processing unit 28, the output unit 4, the IF unit 5 and the communication IF unit 6 are controlled. Thus, when the monitored person monitoring device Dc (Dc-1 to Dc-4) receives the lighting command communication signal, the lighting control unit 26 of the control processing unit 2c turns on the lighting unit 8.

  In the example shown in FIG. 8, the fourth monitored person monitoring device Dc-4 receives the normal operation mode command communication signal from the first monitored person monitoring device Dc-1, and operates in the normal operation mode in step S41. The lighting command communication signal is received from the first monitored person monitoring device Dc-1, and the lighting unit 8 is turned on in step S42.

  Returning to FIG. 11A, after the above-described process S33, the monitored person monitoring device Dc (Dc-1 to Dc-4) is monitored by the movement notification processing unit 27 of the control processing unit 2c. The communication IF unit 6 transmits a movement notification communication signal containing movement information indicating that the vehicle has moved to the communication terminal device TA, and the lighting command notification processing unit 28 of the control processing unit 2c unicasts the lighting command communication signal. The lighting command notification communication signal containing the lighting command information indicating that it has been transmitted is transmitted to the communication terminal device TA by the communication IF unit 6 (S34). In the example shown in FIG. 8, the first monitored person monitoring device Dc-1 transmits the movement notification communication signal and the lighting command notification communication signal to the communication terminal device TA.

  The movement notification communication signal and the lighting command notification communication signal may be combined into one communication signal. More specifically, the monitored person monitoring device Dc (Dc-1 to Dc-4) uses the control processing unit 2c to communicate the movement information and the lighting command information (moving lighting command notification communication signal). Is transmitted to the communication terminal device TA by the communication IF unit 6.

  The monitored person monitoring device Dc (Dc-1 to Dc-4) is operated by the operation mode control unit 23c in the power saving operation mode, the imaging unit 1, the control unit 21 in the control processing unit 2c, the presence / absence determination unit 22a, The movement direction detection unit 24, lighting command processing unit 25, illumination control unit 26, movement notification processing unit 27, lighting command notification processing unit 28, output unit 4, IF unit 5 and communication IF unit 6 are controlled, and the process ends. (S35). In the example illustrated in FIG. 8, the first monitored person monitoring device Dc-1 operates in the power saving operation mode.

  As described above, the monitored person monitoring system Sc, the monitored person monitoring device Dc and the monitored person monitoring method implemented in the third embodiment are the monitored person monitoring system Sa, the monitored person in the first embodiment. Similar to the supervisor monitoring device Da and the supervisor monitoring method implemented therein, when the supervisor Ob is monitored by a plurality of supervisor monitoring devices Dc, the range in which the supervisor Ob is present is shown. The monitored person monitoring device Dc (the first monitored person monitoring device Dc-1 in the example shown in FIG. 8) that is the imaging target monitors the monitored person Ob while the monitored person Ob exists. The other monitored person monitoring devices Dc (the second to fourth monitored person monitoring devices Dc-2 to Dc-4 in the example shown in FIG. 8) whose imaging range is not included are the power saving operation mode command communication signals. The power saving operation To shift the mode. For this reason, the monitored person monitoring system Sc, the monitored person monitoring apparatus Dc, and the monitored person monitoring method implemented in the third embodiment can further save power.

  In addition, the monitored person monitoring system Sc, the monitored person monitoring device Dc, and the monitored person monitoring method implemented in the third embodiment are the other monitored persons arranged in the moving direction of the monitored person Ob. Since only the monitoring device Dc (the fourth monitored person monitoring device Dc-4 in the example shown in FIG. 8) is shifted from the power saving operation mode to the normal operation mode, other monitoring devices Dc that are not arranged in the moving direction of the monitored subject Ob. The monitored person monitoring device Dc (the second and third monitored person monitoring devices Dc-2 and Dc-3 in the example shown in FIG. 8) consumes power by meaninglessly shifting from the power saving operation mode to the normal operation mode. Without being monitored, the monitoring of the monitored person Ob can be continued.

  In addition, the monitored person monitoring system Sc, the monitored person monitoring device Dc, and the monitored person monitoring method (the first monitored person monitoring device Dc-1 in the example shown in FIG. 8) implemented in the third embodiment are provided. Since the shift from the normal operation mode to the power saving operation mode according to the movement of the monitored person Ob, it is possible to further save power.

  In addition, the monitored person monitoring system Sc, the monitored person monitoring device Dc, and the monitored person monitoring method implemented in the third embodiment are the other monitored persons arranged in the moving direction of the monitored person Ob. Since the illumination unit 8 of the monitoring device (the fourth monitored person monitoring device Dc-4 in the example shown in FIG. 8) is turned on, the illumination unit 8 can be illuminated according to the movement of the monitored person Ob. Can be prevented.

  In addition, since the monitored person monitoring system Sc, the monitored person monitoring device Dc, and the monitored person monitoring method implemented therein include the movement notification processing unit 27, the movement of the monitored person Ob is communicated. The terminal device TA can be notified. For this reason, for example, a monitor such as a nurse can recognize the movement of the monitored person Ob by referring to the communication terminal device TA.

  In addition, since the monitored person monitoring system Sc, the monitored person monitoring device Dc, and the monitored person monitoring method implemented in the third embodiment include the lighting command notification processing unit 28, the moving direction of the monitored person Ob The lighting of the illumination unit 8 can be notified to the communication terminal device TA. For this reason, for example, a monitor such as a nurse can recognize the lighting of the illumination unit 8 in the moving direction of the monitored person Ob by referring to the communication terminal device TA.

  In order to express the present invention, the present invention has been properly and fully described through the embodiments with reference to the drawings. However, those skilled in the art can easily change and / or improve the above-described embodiments. It should be recognized that this is possible. Therefore, unless the modifications or improvements implemented by those skilled in the art are at a level that departs from the scope of the claims recited in the claims, the modifications or improvements are not covered by the claims. To be construed as inclusive.

Sa, Sb, Sc Monitored person monitoring system Da, Db, Dc Monitored person monitoring device 1 Imaging unit 2a, 2b, 2c Control processing unit 6 Communication interface unit 7a, 7b, 7c Storage unit 8 Illuminating unit 22a, 22b Existence determination Units 23a, 23b, and 23c Operation mode control unit 24 Movement direction detection unit 25 Lighting command processing unit 26 Lighting control unit 26
27 Movement notification processing unit 28 Lighting command notification processing unit 71 Notification destination storage unit 72 Map storage unit

Claims (12)

A communication unit for communicating with the outside;
An imaging unit that images a predetermined range of imaging target and generates an image of the imaging target;
A presence / absence determination unit that determines presence / absence of a monitored person in the imaging target based on the image of the imaging target generated by the imaging unit;
Normal operation mode in which each of the communication unit, the imaging unit, and the presence / absence determination unit is in an active state, and a power saving operation in which the communication unit is in an active state and the imaging unit and the presence / absence determination unit are in a sleep state. An operation mode control unit that controls each of the communication unit, the imaging unit, and the presence / absence determination unit in any of a plurality of operation modes including a mode,
The operation mode control unit controls each of the communication unit, the imaging unit, and the presence / absence determination unit in the normal operation mode when the presence / absence determination unit determines that the monitored person exists in the imaging target. When the communication unit broadcasts a power saving operation mode command communication signal containing a command to shift to the power saving operation mode, and the communication unit receives the power saving operation mode command communication signal from the outside. The monitored person monitoring device controls each of the communication unit, the imaging unit, and the existence determination unit in the power saving operation mode. The presence / absence determination unit detects presence or absence of body movement in the monitored person based on the image of the imaging target generated by the imaging unit when it is determined that the monitored person exists in the imaging target. A body movement determination unit for determining whether or not the monitored person has no body movement during the first time;
The operation mode control unit performs an operation of broadcasting the power-saving operation mode command communication signal by the communication unit, and the body movement determination unit determines that there is no body movement in the monitored person for a first time. The monitored person monitoring apparatus according to claim 1, wherein the monitoring target monitoring apparatus is executed when the determination is made. The presence / absence determination unit detects presence or absence of body movement in the monitored person based on the image of the imaging target generated by the imaging unit when it is determined that the monitored person exists in the imaging target. Determining whether the monitored person has no body movement for a second time longer than the first time, and determining that the monitored person has no body movement for the second time. The apparatus according to claim 2 , further comprising an abnormality determination unit that transmits an abnormality determination communication signal containing abnormality determination information indicating that an abnormality has occurred in the monitored person to a predetermined communication device by the communication unit. The monitored person monitoring device described. A map storage unit for storing an arrangement position map representing an arrangement position of another monitored person monitoring apparatus with respect to the arrangement position of the own machine;
When it is determined that the monitored person is present in the imaging target, the moving direction of the monitored person with respect to the arrangement position of the own device is detected based on the image of the imaging target generated by the imaging unit; A moving direction detection unit that enters a sleep state in the power saving operation mode;
The operation mode control unit searches the arrangement position map stored in the map storage unit for other monitored person monitoring devices arranged in the movement direction of the monitored person detected by the movement direction detection unit. Then, the communication unit unicasts a normal operation mode command communication signal containing a command to shift to the normal operation mode to the other monitored person monitoring devices searched for, and the normal operation mode command communication signal is externally transmitted. The said communication part, the said imaging part, and the said existence determination part are each controlled in the said normal operation mode when it receives in the said communication part, The Claim 1 thru | or 3 characterized by the above-mentioned. Monitored person monitoring device. The operation mode control unit controls each of the communication unit, the imaging unit, and the presence / absence determination unit in the power saving operation mode after unicasting the normal operation mode command communication signal by the communication unit. The monitored person monitoring apparatus according to claim 4. A map storage unit for storing an arrangement position map representing an arrangement position of another monitored person monitoring apparatus with respect to the arrangement position of the own machine;
When it is determined that the monitored person is present in the imaging target, the moving direction of the monitored person with respect to the arrangement position of the own device is detected based on the image of the imaging target generated by the imaging unit; A moving direction detection unit that enters a sleep state in the power saving operation mode;
An illumination unit that illuminates the imaging target and enters a sleep state in the power saving operation mode;
The other monitored person monitoring device arranged in the moving direction of the monitored person detected by the moving direction detecting unit is searched from the arrangement position map stored in the map storage unit, and the other searched A lighting command processing unit that unicasts a lighting command communication signal that contains a command to turn on the illumination unit to the monitored person monitoring device, and enters a sleep state in the power saving operation mode, and
A lighting control unit that controls turning on and off of the lighting unit, and enters a sleep state in the power saving operation mode;
The said operation mode control part makes the said illumination part the said active state, and makes the said illumination part light by the said illumination control part, when the said lighting command communication signal is received by the said communication part from the outside. The monitored person monitoring apparatus according to any one of claims 1 to 5. The operation mode control unit controls each of the communication unit, the imaging unit, and the presence / absence determination unit in the power saving operation mode after the lighting command communication signal is unicast by the communication unit. The monitored person monitoring device according to claim 6, excluding claim 6 quoting item 5. The operation mode control unit unicasts the normal operation mode command communication signal and the lighting command communication signal by the communication unit, and then sets the communication unit, the imaging unit, and the presence / absence determination unit in the power saving operation mode. The monitored person monitoring apparatus according to claim 6, wherein the monitoring apparatus is controlled. When the normal operation mode command communication signal is unicast by the operation mode control unit, the communication unit transmits a movement notification communication signal containing movement information indicating that the monitored person has moved to a predetermined communication device. And further comprising a movement notification processing unit that enters a sleep state in the power-saving operation mode. The claim 6, the claim 4, and the claim 4 that cite the claim 5, the claim 4, or the claim 5 The monitored person monitoring apparatus according to any one of claims 7 and 8 , further quoting claim 6 to be cited . When the lighting command processing signal is unicasted by the lighting command processing unit, a lighting command notification communication signal containing lighting command information indicating that the lighting command communication signal is unicasted is transmitted by the communication unit to a predetermined communication device. The monitored person monitoring apparatus according to claim 6, further comprising a lighting command notification processing unit that transmits to the sleep state and enters a sleep state in the power saving operation mode. An imaging step of imaging a predetermined range of imaging target and generating an image of the imaging target by an imaging unit;
A presence / absence determination step of determining the presence / absence of a monitored person in the imaging target based on the image of the imaging target generated by the imaging step;
In the normal operation mode in which each of the communication unit for communicating with the outside, the imaging unit, and the presence / absence determination unit is in an active state when it is determined by the presence / absence determination step that the monitored person is present in the imaging target. A command to control each of the communication unit, the imaging unit, and the presence / absence determination unit, and to shift to a power saving operation mode that sets the communication unit to an active state and sets the imaging unit and the presence / absence determination unit to a sleep state. The communication unit broadcasts the power saving operation mode command communication signal accommodated by the communication unit, and when the communication unit receives the power saving operation mode command communication signal from the outside, the communication unit in the power saving operation mode, And an operation mode control step for controlling each of the imaging unit and the presence / absence determining unit. . A monitored person monitoring system comprising a plurality of monitored person monitoring devices that are connected to be communicable with each other and monitor the monitored person,
The monitored person monitoring system according to any one of claims 1 to 10, wherein each of the plurality of monitored person monitoring apparatuses is the monitored person monitoring apparatus according to any one of claims 1 to 10.

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