JP2009128984A - Carpet and monitor device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carpet that can decide actions of a body to be monitored and can be easily installed. <P>SOLUTION: The carpet is to remotely monitor actions of the body to be monitored, and includes a plane protective layer 28 and an optical fiber 11 for a sensor disposed on a surface of the protective layer 28. The optical fiber 11 for the sensor is configured to detect strain at a plurality points which are generated when the carpet is pressed by the body to be monitored. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a rug and a monitoring device including the same.

  In recent years, an aged society has progressed, and the number of people living in welfare facilities such as nursing homes and nursing homes for the elderly is increasing. In nursing care facilities, etc., due to lack of personnel, etc., there may be cases where the eyes are not fully visible. Also, at home, the number of elderly people living alone is increasing due to the nuclear family and the declining birthrate. Under these recent circumstances, accidents at welfare facilities for elderly people and accidents at home have become problems.

  For elderly people and their families, it is desirable to detect problems in welfare facilities or homes as soon as possible to prevent serious accidents. Alternatively, it is desirable to be able to grasp behaviors at welfare facilities or at home.

  In the prior art, a monitoring camera has been used for monitoring a monitored object. Surveillance cameras are superior in that the observer can reliably grasp the behavior of the monitored object, but there is a problem that many people are required for monitoring. For example, it is difficult for a single monitor to monitor a large number of people simultaneously. Moreover, since privacy is seen by others by using a surveillance camera, there is a problem that the surveillance camera is avoided.

  Japanese Patent Laid-Open No. 11-102403 discloses an elderly monitoring system in which a PHS master unit connected to a monitoring center sends out control radio waves, and a PHS slave unit carried by the elderly monitors the electric field strength of the control radio waves. Has been. In this monitoring system, it is disclosed that when the electric field intensity of the radio wave does not change for a certain period of time, it is determined that the elderly person is not moving and is notified to the monitoring center.

  Japanese Patent Laid-Open No. 2000-131162 includes a carpet, a detection electrode provided on the back side of the carpet, a reference electrode insulated from the detection electrode, and a capacitance between the detection electrode and the reference electrode. A rug sensor for detecting a change in the number is disclosed. In this rug sensor, it is disclosed that an object or the like existing above the rug is detected as a change in capacitance between the detection electrode and the reference electrode.

As a sensor, an optical fiber pressure sensor is known in addition to an electrostatic pressure sensor. For example, Japanese Patent Laid-Open No. 2002-148129 discloses an optical fiber pressure sensor that detects an applied pressure based on a phase difference between propagating light in two optical fibers when a pressure is applied.
Japanese Patent Laid-Open No. 11-102403 JP 2000-131162 A JP 2002-148129 A

  In the conventional technology, in an electric pressure sensor based on electrostatic capacity or the like, it is necessary to supply electricity to all the sensor parts in order to use electricity as a driving source, and there is a problem that installation work becomes large. . For example, an electrical sensor is installed at a position where a person's weight is applied, and a sensor that detects whether a person is at that position needs to carry out electrical wiring at a plurality of locations, which requires a large amount of laying work. There was a problem.

  In addition, in order to use electricity as a drive source, there is a problem that electrical countermeasures must be taken when installing in places where water is used such as kitchens, toilets, and bathrooms. . Furthermore, when an electric sensor is disposed in a place where gas is used, such as a kitchen, there is a problem that measures must be taken so as not to cause an explosion when a gas leaks.

  An object of the present invention is to provide a rug and a monitoring device that can determine the behavior of a monitored object and can be easily installed.

  The rug of the present invention is a rug for remotely monitoring the behavior of a monitored object, and includes a planar substrate. The optical fiber for sensors arrange | positioned on the surface of a base material is provided. The sensor optical fiber is formed so as to detect distortion at a plurality of points caused by being pressed by the monitored object.

  Preferably in the said invention, the decoration is given and the front side member arrange | positioned at the front side is provided. The back side member to which the front side member is fixed is provided. The sensor optical fiber is disposed inside the back member.

  Preferably in the said invention, it is a rug formed so that a plurality of sheets can be connected, and is provided at the tip of the sensor optical fiber, and includes a joint part for connecting the sensor optical fibers. The joint portion includes an incident joint portion into which light is incident and an output joint portion from which light is emitted. The joint portion is disposed on the end surface of the base material.

  The monitoring device of the present invention includes a rug including a planar substrate and a sensor optical fiber disposed on the substrate. An analysis device for analyzing a signal from the optical fiber for the sensor is provided. The sensor optical fiber is formed so that strain can be detected at a plurality of points. The analysis device is configured to discriminate the behavior of the monitored object by analyzing changes in signals at a plurality of points.

  In the above invention, preferably, the analysis device determines the behavior of the monitored object by comparing the signal patterns at a plurality of points with a preset reference signal pattern.

  Preferably, in the above invention, the analysis device discriminates the behavior of the monitored object by analyzing temporal changes in signal magnitudes at a plurality of points.

  In the above-mentioned invention, preferably, a plurality of rugs are arranged at each residence location of the monitored object, and signals of the plurality of rugs are transmitted to one analysis device arranged in the room of the supervisor.

  Preferably, in the above invention, a terminal is provided that is disposed at a location distant from the location where the analysis device is disposed and displays an output of the analysis device. A communication device for transmitting the output of the analysis device to the terminal is provided.

  According to the present invention, it is possible to provide a rug and a monitoring device that can determine the behavior of a monitored object and can be easily installed.

(Embodiment 1)
With reference to FIGS. 1-12, the rug and monitoring apparatus in Embodiment 1 are demonstrated. The rug in the present embodiment is a rug that remotely monitors the behavior of the monitored object. The monitored object in the present embodiment is a person. The rug in the present embodiment is used by being laid on an indoor floor.

  FIG. 1 is a schematic cross-sectional view of a rug in the present embodiment. The sensor rug 1 as a rug is formed in a planar shape. The sensor rug 1 includes a protective layer 28 as a base material. The protective layer 28 is disposed below the sensor optical fiber 11. The protective layer 28 is formed so as to absorb the impact applied to the sensor optical fiber 11. The substrate is not limited to the protective layer, and any member can be employed as long as it is a member that serves as an underlay for the sensor optical fiber.

  An optical fiber fixing layer 27 is formed on the upper surface of the protective layer 28. The sensor rug 1 includes a sensor optical fiber 11 disposed on the surface of the protective layer 28. The optical fiber for sensor in the present embodiment is an optical fiber that detects distortion by an FBG (Fiber Bragg Grating) method. The sensor optical fiber 11 in the present embodiment is disposed inside the optical fiber fixing layer 27. The sensor optical fiber 11 is disposed so as to extend in a planar shape along the surface of the protective layer 28. The optical fiber fixing layer 27 includes a resin. The sensor optical fiber 11 is fixed to the protective layer 28 with resin.

  A protective layer 26 is disposed on the surface of the optical fiber fixing layer 27. The protective layer 26 is disposed on the upper side of the sensor optical fiber 11. The protective layer 26 is formed so as to absorb the impact applied to the sensor optical fiber 11. A surface waterproof layer 25 is disposed on the surface of the protective layer 26. The surface waterproof layer 25 is formed of, for example, a resin so that water does not penetrate.

  The sensor rug 1 in the present embodiment includes a pile yarn 21 and a base fabric 22 as front side members. The pile yarn 21 is arranged as a decoration of the front side member. The pile yarn 21 is arranged as a pile material. The pile yarn 21 is formed so as to jump out toward the outside. The sensor rug 1 includes a base fabric 22 as a fixing member for fixing a pile yarn. The pile yarn 21 is fixed to the base fabric 22 by an adhesive resin layer 23 containing an adhesive.

  Sensor rug 1 in the present embodiment includes a back side member. The back side member in this Embodiment is a laminated body. The back side member in the present embodiment includes a protective layer 28, an optical fiber fixing layer 27, a protective layer 26, and a surface waterproof layer 25. The optical fiber 11 for sensor in this Embodiment is arrange | positioned inside the back side member. The base fabric 22 and the pile yarn 21 are fixed to the back member via the adhesive resin layer 23.

  The layer above the layer where the sensor optical fiber 11 is disposed is formed so as to be recessed by pressing of the monitored object. For example, when the monitored object steps on the position where the sensor unit is disposed, the pressing force is transmitted to the sensor unit, and the sensor unit is distorted.

  FIG. 2 shows a schematic diagram of the monitoring apparatus in the present embodiment. The monitoring device in the present embodiment includes a plurality of sensor rugs 1. A sensor optical fiber 11 is disposed on each of the sensor rugs 1. The sensor optical fiber 11 is arranged to meander when viewed in plan. The sensor optical fiber 11 is arranged so as to come and go in one direction indicated by an arrow 82. The sensor optical fiber 11 is arranged so as to be folded back at the end of the substrate. The laying method of the optical fiber 11 for sensors is not restricted to this form, Arbitrary laying methods are employable.

  FIG. 3 shows a partially enlarged schematic view of the optical fiber for sensor in the present embodiment. The sensor optical fiber 11 in the present embodiment has a core portion 11a. The core part 11a is a part where light such as laser light travels. The sensor optical fiber 11 has a clad portion 11b. The clad part 11b is formed around the core part 11a.

  The optical fiber 11 for sensor in this Embodiment has the sensor part 11c. A portion where the refractive index periodically changes is formed in the sensor portion 11c. A plurality of diffraction gratings are formed in the sensor unit 11c in the present embodiment.

  With reference to FIG. 2, the sensor optical fiber 11 in the present embodiment is formed with a plurality of sensor portions 11c. The sensor part 11c is arrange | positioned so that it may leave | separate at substantially equal intervals, when the sensor rug 1 is planarly viewed. The sensor part 11c is regularly arrange | positioned over the whole surface, when the sensor rug 1 is planarly viewed.

  The monitoring device in the present embodiment includes a joint box 35. The monitoring device includes a wiring optical fiber 12. The joint box 35 is formed to connect the sensor optical fiber 11 and the wiring optical fiber 12. In the joint box 35 of the present embodiment, two sensor optical fibers 11 and one wiring optical fiber 12 are connected.

  The monitoring apparatus according to the present embodiment includes a measuring instrument 36 and a personal computer 37 as an analysis apparatus that analyzes an optical signal from the sensor optical fiber 11. The measuring device 36 is formed to emit light to the wiring optical fiber 12. The measuring instrument 36 is formed so that an optical signal incident from the wiring optical fiber 12 can be converted into an electrical signal.

  The personal computer 37 is connected to the measuring instrument 36. The personal computer 37 is formed so as to be able to determine the behavior of the monitored object by analyzing the electrical signal output from the measuring instrument 36. The personal computer 37 is formed so that the analysis result can be displayed. In addition, the personal computer 37 in the present embodiment is configured to notify the monitor when the behavior of the monitored object is abnormal. For example, when the behavior of the monitored object is abnormal, it is configured to perform an abnormal display or emit a warning sound.

  In the present embodiment, laser light is oscillated from the measuring device 36. The oscillated laser light passes through the wiring optical fiber 12 and the joint box 35 and is sent to the sensor optical fibers 11 arranged in the respective sensor rugs 1.

  Referring to FIG. 3, the light transmitted to each sensor optical fiber 11 is selectively reflected at a sensor unit 11 c as indicated by an arrow 81. On the other hand, light other than light of a specific wavelength passes through the diffraction grating of the sensor unit 11 c as indicated by an arrow 83. In the present embodiment, the wavelength of light reflected by one sensor unit 11c is different from the wavelength of light reflected by another sensor unit 11c. For this reason, by emitting laser beams having different wavelengths and detecting the wavelength of the reflected light, it is possible to specify the signal of the sensor unit 11c at any position.

4 and 5 show the spectrum of light reflected by the sensor unit. The horizontal axis represents the wavelength of the reflected light, and the vertical axis represents the intensity of the reflected light. FIG. 4 shows reflected light in a state where no external force is applied to the sensor unit. The sensor unit is in a state without distortion. The reflected light in this case has a wavelength λ ₁ .

FIG. 5 shows reflected light in a state where an external force is applied to the sensor unit. The sensor unit is distorted by an external force. In the present embodiment, the sensor unit 11c is pressed when a person steps on the sensor unit 11c or sleeps on the sensor unit 11c. In this case, it distorted sensor unit, the wavelength of light reflected by the sensor unit shifts from the wavelength lambda ₁ to the wavelength lambda ₁ '. Further, by pressing is released, the wavelength of light reflected by the sensor unit shifts from the wavelength lambda ₁ 'to the wavelength lambda _1.

  Thus, the distortion of the sensor portion causes the wavelength of the reflected light to shift. By measuring the shift amount of the wavelength, the amount of distortion in each sensor unit can be measured. Alternatively, the pressing strength at each sensor unit can be measured.

  Referring to FIG. 2, the light reflected by the sensor portion 11 c of each sensor optical fiber 11 is sent to the measuring instrument 36 through the sensor optical fiber 11, the joint box 35, and the wiring optical fiber 12. In the measuring device 36, the optical signal is converted into an electric signal. The electric signal is transmitted to the personal computer 37.

  The personal computer 37 is equipped with an analysis program for discriminating human behavior. In the personal computer 37, the obtained signal is analyzed to determine the behavior of the monitored object.

  The sensor rug 1 in the present embodiment is disposed in a living room where a person lives, for example. A person walks on the sensor rug 1 or lies on the sensor rug 1. The analysis device in the present embodiment is configured to discriminate the behavior of the monitored object.

  With reference to FIG. 6 to FIG. 12, a method for analyzing signals at a plurality of points in the analysis apparatus will be described. Each of FIG. 6 to FIG. 12 is a graph according to human behavior. The horizontal axis of the graph indicates time. The vertical axis of the graph indicates the magnitude of distortion in the sensor portion of the sensor optical fiber. The magnitude of the distortion of the sensor optical fiber corresponds to the magnitude of the pressing force.

  In the present embodiment, a determination value S1 and a determination value S2 larger than the determination value S1 are set in advance for the magnitude of distortion on the vertical axis. Further, a determination value K1 and a determination value K2 longer than the determination value K1 are set in advance with respect to the length of time on the horizontal axis. These determination values are set such that the behavior of the monitored object to be determined can be determined. Each measurement point A, measurement point B, and measurement point C correspond to a pressed sensor part among a plurality of sensor parts.

  FIG. 6 is a graph of a signal detected by the first action. The first action in the present embodiment is a state where a person has stopped on the upper side of the sensor rug. When a person stands on the sensor rug and stops, a substantially constant distortion is detected at the measurement point A being pressed. The magnitude of the distortion is smaller than the determination value S1. In addition, since it is standing and stopping, the time L1 during which the distortion having a substantially constant magnitude is detected is longer than the time determination value K2. Further, the measurement points where the signal is detected are limited to an area of a size that may be stepped on when a person is standing. At a measurement point in such a region, if the magnitude of distortion is smaller than the determination value S1 and the time during which a substantially constant distortion is generated is longer than the determination value K2, the person stands and stops. Determined.

  FIG. 7 is a graph of signals detected by the second action. The second action in the present embodiment is a state where a person is walking. In FIG. 7, the detection results obtained at measurement point A, measurement point B, and measurement point C are shown. Each graph has a mountain shape. The magnitude of distortion obtained at each of the measurement points A to C is smaller than the determination value S1. The time L2 during which the distortion occurs is smaller than the determination value K1. Further, distortion is detected in the order of the measurement point A, the measurement point B, and the measurement point C with the passage of time. The monitored object moves from the measurement point A toward the measurement point B and then toward the measurement point C. In the case of such a signal, it is determined that a person is walking.

  FIG. 8 is a graph of signals detected by the third action. The third action in the present embodiment is a state in which a person has tripped. FIG. 8 shows a signal pattern at the measurement point C. The signal shown in FIG. 8 may be mixed in a part of the signal that is determined that the person shown in FIG. 7 is walking. In this signal, the magnitude of distortion is larger than the determination value S1 and smaller than the determination value S2. Further, the time L2 during which distortion occurs is smaller than the determination value K1. If such a signal is detected, it is determined that the person has tripped while walking.

  FIG. 9 is a graph of signals detected by the fourth action. The fourth action in the present embodiment is a state when a person falls or falls. When a person falls or falls, an even larger distortion signal is detected. FIG. 9 shows a signal pattern at the measurement point C. In this signal, the magnitude of distortion is larger than the determination value S2. Further, the time L2 during which distortion occurs is smaller than the determination value K1. When such a signal is detected, it is determined that the person has fallen or falls.

  Furthermore, if it is detected that a person moves around after the signal shown in FIG. 9, it is determined that the person has fallen. Moreover, if the signal which the person who lies later mentioned after the signal shown in FIG. 9 lies is detected, it is determined that the person has fallen.

  FIG. 10 is a graph of signals detected by the fifth action. The fifth action in the present embodiment is a state of walking while dragging a foot. FIG. 10 shows signal patterns at measurement points A and B. Each signal at the measurement points A and B has a distortion magnitude smaller than the determination value S1. The time L3 during which each distortion occurs is longer than the determination value K1 and shorter than the determination value K2. Further, the monitored object is moving from the measurement point A toward the measurement point B. In the case of such a signal, it is determined that a person is walking while dragging.

  FIG. 11 is a graph of signals detected by the sixth action. The sixth action in the present embodiment is a state where a person is lying on the sensor rug. FIG. 11 shows signal patterns at the measurement point A, the measurement point B, and the measurement point C. Measurement points A to C are measurement points in a region corresponding to the size of the body when a person lies down. In a plurality of measurements A to C, distortion occurs at substantially the same time. The magnitude of each detected distortion is smaller than the determination value S1. Further, the magnitude of the generated distortion is substantially constant at each of the measurement points A to C regardless of the passage of time. The distortion generation time L4 is longer than the determination value K2. In the case of such a signal, it is determined that a person is lying.

  As described above, the analysis apparatus according to the present embodiment can determine the behavior of the monitored object by analyzing the temporal change in the signal magnitude at a plurality of points. For example, by monitoring at least one variable among the position where the distortion occurs, the magnitude of the distortion, the time when the distortion occurs, the length of time the distortion occurs, and the movement form of the distortion, It is possible to determine the behavior of the body. Furthermore, the behavior of the monitored object can be determined by providing a determination value for the time and distortion variables.

  The method for determining the behavior of the monitored object is not limited to this mode, and the behavior of the monitored object may be determined by comparing signal patterns at a plurality of points with a preset reference signal pattern. For example, a waveform of a mountain-shaped signal when a person falls may be set as a reference pattern, and it may be determined that a person has fallen when a signal with a similar waveform appears.

  In the present embodiment, the description has been given by taking, for example, general walking and falling as an example of a human action, but the present invention is not limited to this form, and other actions such as progression on all fours are also discriminated. be able to.

  Furthermore, the monitoring device according to the present embodiment can store the resident's behavior form in advance as a reference form and detect an abnormality of the monitored object from the behavior form. For example, the abnormality of the monitored object can be detected by detecting that the stay in the toilet or bathroom is longer than the time of the reference form.

  The monitoring device in the present embodiment can detect not only the determination of the resident's behavior but also the presence of a person other than the resident.

  FIG. 12 is a graph of signals detected when a person other than the resident enters. For example, a signal of a state when a suspicious person such as a thief invades is shown. FIG. 12 shows signal patterns at the measurement point A, the measurement point B, and the measurement point C. The signal pattern of the measurement point A is a resident signal pattern.

  The waveform of the signal pattern at measurement point B or C is significantly different from the waveform of the signal pattern at measurement point A. The maximum distortion value at measurement point B is larger than the maximum distortion value at measurement point A. Further, the maximum distortion value at the measurement point C is smaller than the maximum distortion value at the measurement point A. In addition, each time when the distortion occurs at the measurement points B and C is different from that at the measurement point A. As shown by the measurement point B or the measurement point C, when the magnitude of the distortion or the time during which the distortion occurs is different and the distance is more than the determination value, it is determined that a person other than the resident has entered.

  Furthermore, the resident's action form is set as a reference form in advance, and when the action form is clearly different, the intrusion of a person other than the resident can be determined. For example, it is possible to detect a suspicious person by detecting a movement route of a person. For example, in the resident's standard form, when returning home from home, head to the place where the washstand is placed to wash hands. Here, if a signal directly going to the living room is detected when returning from a place where the user is away from home, the person can be identified as a suspicious person.

  The monitoring device in the present embodiment can perform remote monitoring because the sensor rug and the analysis device can be connected using an optical fiber. Referring to FIG. 2, by making the wiring optical fiber 12 longer, the measuring device 36 and the sensor rug 1 can be arranged at different locations. Alternatively, the measuring instrument 36 and the personal computer 37 can be arranged at different locations by lengthening the wiring that electrically connects the measuring instrument 36 and the personal computer 37. Alternatively, the sensor rug 1, the measuring instrument 36, and the personal computer 37 may be arranged at different locations.

  Since the rug and the monitoring device in this embodiment use an optical fiber as a sensor, it is not necessary to perform power supply work at a place where the sensor is arranged, and can be easily installed. In the installation of the sensor rug, the sensor rug can be installed by laying the sensor rug at a target location and connecting the optical fibers.

  Further, since it is not necessary to supply power to the sensor, it can be easily installed in a place where water is used or a place where moisture is high. For example, when a sensor rug that detects electric changes is placed in a water field such as a kitchen, there is a risk of leakage due to water. For this reason, it is necessary to perform waterproofing work to prevent electric leakage. Alternatively, waterproofing work is also required when it is placed in a place with high humidity such as a bathroom. However, the rug in this embodiment has no fear of electric leakage even if the optical fiber itself as a sensor gets wet, and can be installed without performing waterproofing work. Furthermore, the sensor rug in this Embodiment can be arrange | positioned not only indoors but outdoors. For example, the sensor rug can be arranged in a garden or the like without being limited to a house.

  Also, the rug in this embodiment can eliminate the influence of electromagnetic induction caused by lightning, high-voltage lines, etc., unlike a rug that is detected by an electrical method. Alternatively, even when a microwave oven, a wireless device, or the like is disposed near the rug, since malfunction due to electromagnetic noise does not occur, highly reliable measurement can be performed.

  In the present embodiment, an optical fiber that detects strain by the FBG method is employed as the optical fiber for the sensor. With this configuration, high signal sensitivity can be obtained, and highly accurate detection can be performed.

  In this embodiment, the FBG optical fiber is taken as an example of the sensor optical fiber. However, the present invention is not limited to this mode, and the optical fiber distortion is detected when a pressing force is applied to the optical fiber. It does not matter as long as it can be formed. For example, a B-OTDR (Brillouin Optical Time Domain Reflectometer) optical fiber can be employed as the optical fiber for the sensor. The B-OTDR method is a measurement method using Brillouin scattered light. When a light pulse is incident on the optical fiber, Brillouin scattered light is generated. Brillouin scattered light has a specific frequency distribution, and the frequency distribution moves in proportion to the distortion of the optical fiber. The B-OTDR method measures the amount of distortion of the optical fiber by measuring the frequency shift amount of the Brillouin scattered light. The distortion occurrence position can be calculated from the light pulse incident time and the Brillouin scattered light receiving time.

  The rug in the present embodiment includes a pile yarn and a base fabric as front side members. In the rug in the present embodiment, the front side member is formed in a carpet shape, but the present invention is not limited to this form, and the present invention can be applied to any rug. Further, the surface member is not limited to a carpet-like one, and any decoration may be used. For example, the front side member may include a resin plate having a pattern formed on the surface, a cloth coated with resin, and printed.

  The monitored object in the present embodiment is a person, but is not limited to this form, and any moving object can be the monitored object. The monitored object may be, for example, an animal such as a dog.

(Embodiment 2)
With reference to FIG. 13 and FIG. 14, the rug and the monitoring device in the second embodiment will be described. The monitored object in the present embodiment is an elderly person.

  FIG. 13 shows a schematic diagram of the first monitoring apparatus in the present embodiment. In the first monitoring apparatus, the sensor rug 1 is arranged in one building, and the measuring instrument 36 and the personal computer 37 are arranged in a building apart from the one building. In the present embodiment, the sensor rug 1 is arranged in a welfare care center as a welfare facility. The sensor rug 1 is disposed in the room of each elderly person 71. On the other hand, the measuring instrument 36 and the personal computer 37 are arranged at a nurse station in the hospital. The sensor rug 1 and the measuring instrument 36 are connected by a wiring optical fiber 12.

  In the present embodiment, the signals of the respective sensor rugs 1 are transmitted to the nurse station of the hospital via the wiring optical fiber 12. The signals of the plurality of sensor rugs 1 are transmitted to one personal computer 37, and the personal computer 37 determines the behavior. The personal computer 37 in the present embodiment is formed so as to notify the monitor by displaying a warning or the like when an abnormality of the elderly person is detected.

  The nurse as a monitor can remotely monitor each room of each elderly person 71 in the welfare care center. The nurse can grasp the behavior of the elderly 71 at the nurse station in the hospital. Further, when an abnormality occurs in each elderly person 71, the nurse can immediately detect the abnormality.

  In the 1st monitoring apparatus of this Embodiment, the some rug is arrange | positioned in each residence place of a some to-be-monitored body. One analysis device is arranged in a supervisor's room. A plurality of rug signals are transmitted to one analysis device. With this configuration, the status of a plurality of monitored objects can be collected in one place, and monitoring can be performed with a small number of people. In addition, since the analysis device is formed so as to notify the abnormality to the monitoring person, a large number of monitored persons can be monitored by a small number of monitoring persons.

  In the first monitoring apparatus, the sensor rug 1 is arranged in one building, and the measuring instrument 36 and the personal computer 37 are arranged in another building. The personal computer 37 may be arranged in different rooms of the same building. For example, the sensor rug may be arranged in a hospital room and the analysis device may be arranged in a nurse station of the same hospital.

  FIG. 14 is a schematic diagram of the second monitoring device in the present embodiment. In the second monitoring device, the sensor rug 1 is arranged at the home of an elderly person 71 who lives alone. Alternatively, the sensor rug 1 is arranged in a home where the family goes out and the elderly 71 remains alone.

  A measuring instrument 36 and a personal computer 37 as analysis devices are arranged in a monitoring center. The monitoring center is, for example, a hospital, a security company, or a provider that connects to the Internet. The optical signal of each elderly person's house is transmitted to the monitoring center via the optical fiber 12 for wiring. Signal analysis is performed at the monitoring center.

  In the second monitoring device, the analysis result is transmitted to the terminal using the communication device. In the second monitoring device, a public network is employed as a communication device. As the public network, for example, devices such as a telephone line, an ADSL (Asymmetric Digital Subscriber Line) using a telephone line, cellular phone communication, or the Internet network can be adopted. Further, as a terminal, a personal computer 38 disposed in a relative's home of each elderly person 71 or a mobile phone 39 as a portable device of a relative can be employed. The analysis result is transmitted to the terminal and notified to the supervisor by the terminal.

  In the second monitoring device, it is possible to grasp the behavior or abnormality of the monitored object even if it is away from the location of the monitored object. For example, when an elderly person 71 lives alone, a personal computer 37 as a terminal is arranged at the family house of each elderly person 71, so that the family can immediately observe the elderly person's behavior and abnormalities at home. Can know. Even when the elderly person 71 lives with his / her family, by receiving the analysis result by the mobile phone 39, the behavior and abnormality of the elderly person 71 can be immediately known on the go.

  In the conventional technology, even if an elderly person falls down at a welfare care center or at home, others cannot grasp the situation until the person is discovered. When a fallen elderly person is found, for example, calling for an ambulance or notifying a nurse station of a care center or a hospital can request rescue for the first time. For this reason, there is a problem that it takes time until the first treatment is performed after falling down. However, in the present embodiment, the occurrence of an abnormality can be immediately passed to a nurse, family, or the like, and the time until the first treatment can be shortened.

  In this embodiment, a public network is employed as a communication device that transmits the output of the analysis device to the terminal. However, the present invention is not limited to this configuration, and an arbitrary network may be used. Further, the terminal is not limited to a personal computer or a portable device, and any device that can receive an analysis result can be adopted.

  Further, in the present embodiment, an explanation has been given by taking an elderly person as an example of a monitored body. However, the present invention is not limited to this form. For example, the monitored body may be a child, a sick person, or the like.

  Other configurations, operations, and effects are the same as those in the first embodiment, and thus description thereof will not be repeated here.

(Embodiment 3)
With reference to FIGS. 15 to 17, the rug in the third embodiment will be described. The rug in the present embodiment is composed of a laminated body including optical fibers for sensors without having a front side member.

  FIG. 15 is a schematic cross-sectional view of a rug and a surface carpet in the present embodiment. In the present embodiment, the surface pile yarn portion and the sensor rug portion are separated. In the present embodiment, the sensor rug 2 is arranged below the surface carpet 3 including pile yarn.

  In FIG. 16, the schematic sectional drawing of the rug in this Embodiment is shown. The sensor rug 2 has an optical fiber fixing layer 27 in which the sensor optical fiber 11 is disposed. Protective layers 26 and 28 are disposed on both the front and back surfaces of the optical fiber fixing layer 27. A surface waterproof layer 25 is disposed on the surface of the protective layer 26.

  An anti-slip layer 29 is disposed on the back surface of the protective layer 28 as a substrate. The anti-slip layer 29 of the present embodiment is a resin layer. The anti-slip layer 29 is subjected to anti-slip processing. For example, the anti-slip layer 29 has irregularities formed on the back surface or an anti-slip agent applied. Any form can be adopted as the anti-slip process.

  In FIG. 17, the schematic sectional drawing of the surface carpet as a front side member in this Embodiment is shown. The surface carpet 3 has a pile yarn 21. The pile yarn 21 is fixed by a base fabric 22 and an adhesive resin layer 23. An anti-slip layer 30 is disposed on the back side of the surface carpet 3. The anti-slip layer 30 is fixed to the adhesive resin layer 23. The anti-slip layer 30 is subjected to anti-slip processing.

  With reference to FIG. 15, in this Embodiment, after laying sensor rug 2 on the laying object surface, surface carpet 3 is covered. In the present embodiment, the surface carpet 3 is formed so as to be separable from the sensor rug 2. For this reason, when the surface carpet 3 becomes dirty, the surface carpet 3 can be removed and washing such as washing can be performed. Further, when the surface carpet 3 becomes old due to use or the room is redesigned, the surface carpet 3 can be easily replaced. Further, the sensor rug 2 can be repaired or replaced with a new one without replacing the surface carpet 3.

  Since the back surface of the surface carpet and the back surface of the sensor rug are subjected to anti-slip processing, the sensor rug can be prevented from sliding with respect to the laying surface, and the surface carpet can be prevented from sliding with respect to the sensor rug. As a result, when riding on the surface carpet, the surface carpet or the sensor rug can be prevented from moving and falling.

  Other configurations, operations, and effects are the same as those in the first or second embodiment, and thus description thereof will not be repeated here.

(Embodiment 4)
The rug in Embodiment 4 will be described with reference to FIGS. The rug in the present embodiment is formed such that a plurality of sheets can be connected to each other.

  FIG. 18 shows a schematic perspective view of the first rug in the present embodiment. The sensor rug 4 as the first rug in the present embodiment includes a sensor optical fiber 11. The sensor rug 4 is formed so that the planar shape is a quadrangle.

  The sensor rug 4 includes a joint portion 6 disposed at the tip of the sensor optical fiber 11. The joint portion 6 is a connecting member for connecting the sensor optical fibers 11 to each other. Of the two joint parts 6, one is an incident joint part into which light enters, and the other is an output joint part from which light exits. Each joint part 6 is arrange | positioned at the end surface of a base material. The joint portion 6 is disposed so as to be exposed from the end face so that the rugs can be connected to each other.

  FIG. 19 is a schematic perspective view of a second rug in the present embodiment. The sensor rug 5 as the second rug is formed so that the planar shape is a quadrangle. In the sensor rug 5, a joint portion 6 is disposed at one end of the sensor optical fiber 11, and a modem 7 is disposed at the other end. The modem 7 is a converter that converts an optical signal into an electrical signal.

  FIG. 20 shows a schematic plan view when a plurality of rugs in the present embodiment are laid. The sensor rug 8 as the third rug in the present embodiment is a rug in which the arrangement of the sensor optical fiber 11 is symmetrical to the sensor rug 4. The plurality of sensor rugs 4 and 8 are arranged so that the end faces are in contact with each other. In the present embodiment, the sensor rug 4 and the sensor rug 8 are alternately arranged.

  The sensor optical fibers 11 of the sensor rugs 4 and 8 adjacent to each other are connected to each other by connecting the joint portions 6 to each other. The sensor optical fiber 11 of one sensor rug 4, 8 and the sensor optical fiber 11 of the other sensor rug 4, 8 function as one sensor optical fiber.

  The sensor rug 5 is disposed at the end of the area where the plurality of sensor rugs 4 and 8 are laid. By connecting the signal line 31 to the modem 7 of the sensor rug 5, an electrical signal is transmitted. The electric signal is transmitted to, for example, a personal computer, and the action is determined.

  The sensor rug in the present embodiment has a tile carpet shape. Any number of sensor rugs can be connected to each other. For this reason, it can be easily installed in an installation place of any size. Moreover, one sensor rug can be reduced in size, installation work becomes easy, and conveyance can be performed easily.

  In this embodiment, two types of rugs in which the optical fibers for sensors are arranged symmetrically are alternately arranged. However, the present invention is not limited to this configuration, and one type of rug is continuously arranged. It doesn't matter. Or three or more types of rugs may be connected.

  In the present embodiment, the planar shape of the sensor rug is formed to be a quadrangle. In addition, since the planar shape of the sensor rug is formed to be a polygon, laying can be easily performed.

  In the present embodiment, an electric signal is taken out from a plurality of rugs by arranging the modem on the rug at the end. However, the present invention is not limited to this mode. A connecting member may be arranged.

  Other configurations, operations, and effects are the same as those in the first to third embodiments, and thus description thereof will not be repeated here.

  The embodiments described above are illustrative rather than limiting the present invention. Moreover, in each figure, the same code | symbol is attached | subjected to the same part or an equivalent part.

FIG. 3 is an enlarged schematic cross-sectional view of a sensor rug in the first embodiment. 1 is a schematic diagram of a monitoring device according to Embodiment 1. FIG. It is an expansion schematic of the sensor part of the optical fiber for sensors. It is a 1st graph explaining the reflected light from the sensor part of the optical fiber for sensors. It is a 2nd graph explaining the reflected light from the sensor part of the optical fiber for sensors. 4 is a graph illustrating a signal when a person is standing and stopping in the first embodiment. 4 is a graph for explaining a signal when a person walks in the first embodiment. 3 is a graph for explaining a signal when a person stumbles in Embodiment 1. 4 is a graph for explaining a signal when a person falls in the first embodiment. 4 is a graph for explaining a signal when a person walks while dragging a foot in the first embodiment. 4 is a graph illustrating signals when a person is lying in Embodiment 1. It is a graph explaining the signal when people other than the resident in Embodiment 1 invade. FIG. 6 is a schematic diagram of a first monitoring device in a second embodiment. FIG. 10 is a schematic diagram of a second monitoring device in the second embodiment. It is a schematic sectional drawing of the sensor rug and the surface carpet in Embodiment 3. 10 is an enlarged schematic cross-sectional view of a sensor rug in Embodiment 3. FIG. FIG. 5 is an enlarged schematic cross-sectional view of a surface carpet in a third embodiment. 10 is a schematic perspective view of a first sensor rug in Embodiment 4. FIG. FIG. 10 is a schematic perspective view of a second sensor rug in the fourth embodiment. It is a schematic plan view when a plurality of sensor rugs in Embodiment 4 are laid.

Explanation of symbols

1, 2, 4, 5, 8 Sensor rug 3 Surface carpet 6 Joint part 7 Modem 11 Sensor optical fiber 11a Core part 11b Clad part 11c Sensor part 12 Optical fiber for wiring 21 Pile yarn 22 Base cloth 23 Adhesive resin layer 25 Surface Waterproof layer 26, 28 Protective layer 27 Optical fiber fixing layer 29, 30 Non-slip layer 31 Signal line 35 Joint box 36 Measuring instrument 37, 38 Personal computer 39 Mobile phone 71 Elderly person 81, 82, 83 Arrow

Claims (8)

A rug for remotely monitoring the behavior of a monitored object,
A planar substrate;
An optical fiber for a sensor disposed on the surface of the substrate;
The optical fiber for sensors is a rug formed so as to detect a plurality of strains caused by being pressed by the monitored object. A front side member that is decorated and arranged on the front side,
A back side member to which the front side member is fixed,
The rug according to claim 1, wherein the sensor optical fiber is disposed inside the back member. It is a rug formed so that a plurality of sheets can be connected,
It is disposed at the tip of the sensor optical fiber, and includes a joint part for connecting the sensor optical fibers to each other,
The joint portion includes an incident joint portion into which light is incident and an output joint portion from which the light is emitted,
The rug according to claim 1 or 2, wherein the joint portion is disposed on an end surface of the base material. A rug comprising a planar substrate and a sensor optical fiber disposed on the substrate;
An analyzer for analyzing a signal from the optical fiber for the sensor,
The optical fiber for sensor is formed so as to be able to detect strain at a plurality of points,
The analysis device is a monitoring device that determines a behavior of a monitored object by analyzing a change in a signal at the plurality of points.   The monitoring apparatus according to claim 4, wherein the analysis apparatus determines the behavior of the monitored object by comparing a signal pattern at the plurality of points with a preset reference signal pattern.   The monitoring apparatus according to claim 4, wherein the analysis apparatus determines the behavior of the monitored object by analyzing a temporal change in the magnitude of the signal at the plurality of points. A plurality of the rugs are arranged in the respective residence places of the monitored objects,
The monitoring device according to any one of claims 4 to 6, wherein signals of the plurality of rugs are transmitted to the one analysis device arranged in a room of a supervisor. A terminal arranged at a location away from a location where the analysis device is arranged, and displaying an output of the analysis device;
The monitoring device according to claim 4, further comprising a communication device that transmits an output of the analysis device to the terminal.

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