Measuring equipment

Abstract

To accurately measure the rising speed of the head of a target person who is standing up in a room.SOLUTION: A measuring apparatus mounted on the room ceiling part comprises: a transmission unit for transmitting an ultrasound; a reception unit for receiving the ultrasound reflected in the room; and a calculation unit for calculating the head height position of a target person based on the receiving result of the ultrasound reflected by the head of the target person when the target person exists in the room, and for calculating the rising speed of the head based on the calculation result.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a measurement device. [Background technology]

[0002] The transmitter installed on the ceiling of the bathroom emits ultrasonic waves to measure the distance between the water surface of the bathtub and the subject's head. A technology is known that measures the distance between the subject and the bathtub and determines the submersion state of the subject based on the measurement results. (See, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-34763 Summary of the Invention [Problem to be solved by the invention]

[0004] Heat shock is one of the causes of a subject sinking in the bathtub. This may occur, for example, when a subject suddenly stands up from a bathtub. To detect the rising speed, it has been proposed to detect, for example, the change in the water depth in the bathtub. However, when the subject stood up, the volume change of the body part that left the bath was The speed at which the head rises is not uniform, and it takes time for the water surface to stabilize. It is difficult to accurately detect the temperature in the bathroom. Therefore, there is a need for technology that can accurately detect the head rising speed when a subject in a room stands up. do.

[0005] The present invention has been made in view of the above, and provides a method for detecting a head injury when a subject in a room stands up. The object is to provide a measuring device capable of accurately measuring the rising speed. [Means for solving the problem]

[0006] The measuring device according to the present invention comprises: a transmitter provided on a ceiling of a room and configured to emit ultrasonic waves; a receiving unit that receives the ultrasonic waves reflected in the room; and a receiving unit that receives the ultrasonic waves reflected in the room when a target person is present in the room. The head height position of the subject is determined based on the reception result of the ultrasonic waves reflected by the head of the subject. and a calculation unit that calculates the rising speed of the head based on the calculation result. [Effects of the Invention]

[0007] According to the present invention, it is possible to accurately detect the head rising speed when a subject in a room stands up. can be done. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram schematically illustrating an example of a measurement device according to this embodiment. [Figure 2] FIG. 2 is a functional block diagram illustrating an example of the control unit. [Figure 3] FIG. 3 is a diagram showing an example of a measurement operation by the measurement device. [Figure 4] FIG. 4 is a diagram showing an example of a measurement operation by the measurement device. [Figure 5] FIG. 5 is a diagram illustrating an example of a measurement operation performed by the measurement device. [Figure 6] FIG. 6 is a flowchart showing an example of the operation of the measurement device according to this embodiment. [Figure 7] FIG. 7 is a flowchart showing an example of the operation of the measurement device according to this embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of a measuring device according to the present invention will be described with reference to the drawings. The present invention is not limited to the above embodiments. , which are easily replaceable by a person skilled in the art, or which are substantially the same.

[0010] FIG. 1 is a diagram schematically illustrating an example of a measurement device 100 according to this embodiment. Thus, the measuring device 100 includes a transmitting unit 10, a receiving unit 20, a detecting unit 30, and a control unit 40. In this embodiment, the measurement device 100 is disposed in, for example, a bathroom 50. The bathroom 50 includes a bathtub 51 and a ceiling 52. The wall of the bathroom 50 is provided with a bathtub 51. The terminal 53 is equipped with various controls, such as adjusting the water temperature inside the bath. It has a notification unit 53a such as a speaker that outputs a voice.

[0011] The transmitting unit 10 is provided on the ceiling 52 in the bathroom 50. The transmitter 10 transmits ultrasonic waves S to a subject P soaking in a bathtub 51, for example. Wave S is emitted.

[0012] The receiving unit 20 is provided on the ceiling 52 in the bathroom 50 and receives ultrasonic waves S reflected in the bathroom 50. The receiving unit 20 receives the ultrasonic waves S reflected by the head H of the subject P. The receiving unit 20 receives the ultrasonic wave S and generates a reception signal.

[0013] The detection unit 30 detects whether or not a subject P is present in the bathroom 50. For example, a photographing device such as a camera that captures an image of the subject P is used. The detection unit 30 detects an image of the subject P with a resolution that allows the subject P to be identified using the acquired image of the subject P. The detecting unit 30 is not limited to the above configuration. For example, a low-resolution image capture device may be used, or a measurement device such as an optical sensor may be used. good.

[0014] The control unit 40 controls the overall operation of the measurement device 100. The control unit 40 includes a CPU (C Central Processing Unit and other processing units, and RAM (Random Access Memory) Access Memory (ROM) or ROM (Read Only Memory), etc. FIG. 2 is a functional block diagram showing an example of the control unit 40. As shown in the figure, the control unit 40 includes a transmission control unit 41, a signal acquisition unit 42, a calculation unit 43, and a notification control unit. The control unit 44 and the storage unit 45 are included.

[0015] The transmission control unit 41 controls the operation of transmitting ultrasonic waves by the transmitting unit 10. The transmission control unit 41 For example, the ultrasonic wave S can be transmitted from the transmitting unit 10 about 10 times per second. The acquisition unit 42 acquires the reception signal of the ultrasonic wave S received by the reception unit 20.

[0016] The calculation unit 43 determines whether the subject P is present in the bathroom 50 based on the detection result of the detection unit 30. If a subject P is present in the bathroom 50, the light reflected by the head H of the subject P is detected. Based on the result of receiving the ultrasonic waves, the calculation unit 43 calculates the head height position of the subject P. The rising speed of the head H is calculated based on the head height position. The head height position is calculated for each time the head is moved, and the head position is calculated based on the time change of the calculated head height position. The rising speed of part H is calculated.

[0017] The notification control unit 44 detects whether a target person is present in the bathroom 50 based on the detection result of the detection unit 30. In this case, the target person present in the bathroom 50 is identified and identification information is obtained. For example, if the detection unit 30 is a photographing device such as a camera, the image may be a photographed image of the face of the subject. The identification information is not limited to the above, and may be other types of information. The sensor control unit 44 determines whether the rising speed calculated by the calculation unit 43 exceeds a threshold value. The threshold value for the temperature rise speed is set based on at least one of the temperature and temperature distribution in bathroom 50. The threshold value of the rising speed is determined based on at least one of the temperature and the temperature distribution in the bathroom 50. The temperature distribution in the bathroom 50 can be changed, for example, from the ceiling 52 to the bathtub 51. It may be the temperature distribution in one section in the vertical direction in the bathroom 50 up to the height position of the upper edge. In addition, the air in the entire vertical section of the bathroom 50 from the ceiling 52 to the floor of the bathroom 50 If the notification control unit 44 determines that the rising speed exceeds the threshold, the notification control unit 44 The obtained rising speed and the identification information of the subject in the bathroom 50 are stored in the memory unit 45.

[0018] The notification control unit 44 also detects the detection result of the detection unit 30 and the rising speed stored in the storage unit 45. Based on the identification information, the target person whose rising speed exceeds the threshold (hereinafter referred to as a specific target person) is identified. It is determined whether a specific target person is present in the bathroom 50. When the notification control unit 44 determines that the specific target person is a target, the notification control unit 44 notifies the specific target person of attention by way of the notification unit 53a. In this embodiment, when the rising speed of the head H of the subject P exceeds the threshold as described above, If it is determined that the target person P is in the bathroom 50, the target person P will be notified from the next time onwards when the target person P is in the bathroom 50. The alert information is notified.

[0019] The warning information may include, for example, a warning to slow down the speed at which the person stands up from the bathtub 51. When the notification unit 53a includes a display device, the notification unit 53a may be configured to The information may be information in the form of text and / or images. If the speed at which the subject P stands up is too fast, there is a risk of heat shock when the subject P stands up. In this embodiment, by notifying the subject P of attention-calling information, the subject P can easily get out of the bathtub 51. This allows the subject P to be informed in advance that the speed at which he or she stands up from the chair will be faster. Therefore, it is possible to make the subject P take appropriate action, such as standing up slowly. Therefore, the occurrence of heat shock can be reduced.

[0020] The storage unit 45 stores various information. The storage unit 45 may be, for example, a hard disk drive, The storage unit 45 has a storage such as a solid state drive. An external storage medium such as a portable disk may be used. The rising speed at which the head is raised and the identification information of the subject P who raised his / her head at that rising speed are stored.

[0021] The memory unit 45 performs a process of acquiring the received signal generated by the receiving unit 20 and a process of storing the target in the bathroom 50. If a person P is present, the target is detected based on the received signal of the ultrasonic wave S reflected by the head H of the target P. A process of calculating the head height position of the person P, and calculating the rising speed of the head H based on the calculation result. The temperature measurement program for causing the computer to execute the above process is stored.

[0022] Next, the operation of the measuring device 100 configured as described above will be described. The transmission control unit 41 Based on a predetermined input, the transmitting unit 10 transmits ultrasonic waves S. The transmitting unit 10 controls the transmission. Under the control of the unit 41, ultrasonic waves are emitted at a cycle of m times per second, for example.

[0023] 3 is a diagram showing an example of a measurement operation by the measurement device 100. In FIG. The figure shows a state in which the subject P is immersed in a bathtub 51. The emitted ultrasonic waves S are picked up by the head H of the subject P. The ultrasonic wave S is reflected by the reflector 20 and received by the receiver 20. The signal acquisition unit 42 acquires the received signal generated by the receiving unit 20.

[0024] The calculation unit 43 determines whether the subject P is present in the bathroom 50 based on the detection result of the detection unit 30. As shown in FIG. 3, when the detection unit 30 detects the subject P, the calculation unit The calculation unit 43 determines that the subject P is present in the bathroom 50. If it is determined that the subject P is present, the system performs the following operation based on the reception result of the ultrasonic waves reflected by the head H of the subject P. The calculation unit 43 calculates the head height position H1 of the subject P based on the received signal from the transmitting unit 10. The head height position is calculated for each of the above cycles, and the calculated head height position is stored in the memory unit 45. The calculation unit 43 calculates the rising speed of the head H based on the calculated head height position. In the example shown in FIG. 3, the calculation unit 43 calculates the head height position of the subject as follows: Therefore, the rising speed is calculated to be approximately 0. The calculation unit 43 stores the calculated rising speed in the storage unit 45. do.

[0025] 4 is a diagram showing an example of a measurement operation by the measurement device 100. In FIG. The figure shows a state in which a person has stood up from the bathtub 51. The transmitter 10 emits, for example, n times in the above cycle. The transmitted ultrasound waves S are reflected by the head H of the subject P while the subject P stands up. The ultrasonic wave S is irradiated and received by the receiving unit 20. The receiving unit 20 receives the ultrasonic wave S and generates a reception signal. The signal acquisition unit 42 acquires the received signal generated by the receiving unit 20.

[0026] The calculation unit 43 calculates the above-mentioned peripheral wave based on the reception result of the ultrasonic wave reflected by the head H of the subject P. The calculation unit 43 calculates the head height positions H2, H3, ..., Hn of the subject P for each period. The calculated head height position is stored in the storage unit 45. The calculation unit 43 calculates the head height position based on the calculated head height position. In the example shown in Figure 4, the head height position of the subject is H1. Therefore, the calculation unit 43 calculates the time until the ultrasonic wave S is transmitted n times. The rising speed is calculated based on the time (n / m) and the change in the head height position of the subject (Hn-H1). The calculation unit 43 stores the calculated rising speed in the storage unit 45.

[0027] In the example shown in FIGS. 3 and 4, the notification control unit 44 performs the following based on the detection result of the detection unit 30: The notification control unit 44 identifies a target person present in the bathroom 50 and acquires the identification information. The calculation unit 43 determines whether the rising speed calculated by the calculation unit 43 exceeds a threshold value. If it is determined that the rising speed exceeds the threshold, the calculated rising speed and the subject's The identification information is stored in the storage unit 45.

[0028] The notification control unit 44 uses the detection result of the detection unit 30 and the rising speed and identification stored in the storage unit 45. Based on the information, it is determined whether or not a specific target person is present in the bathroom 50. 5 is a diagram showing an example of an attention-calling activation operation by the monitoring device 100. As shown in FIG. When it is determined that the specific target person P1 is present in the area, the notification control unit 44 notifies the specific target person P1 via the notification unit 53a. The specific target person P1 is notified of the warning information I. By knowing this, it is possible to identify in advance that the speed at which the person stands up from the bathtub 51 is relatively fast. Therefore, the specific target person P1 may, for example, stand up slowly. This reduces the occurrence of heat shock. It can be done.

[0029] Next, the flow of operations of the measuring device 100 according to this embodiment will be described. 6 is a flowchart showing an example of the measurement operation of the measurement device 100 according to the present invention. The transmission control unit 41 causes the transmitting unit 10 to emit ultrasonic waves S (step S10). The reflected light S is reflected in the bathroom 50 and received by the receiving unit 20 (step S20). generates a reception signal of the ultrasonic wave S and transmits the generated reception signal to the control unit 40. The calculation unit 43 determines whether the subject P is present in the bathroom 50. (Step S30). When it is determined that the subject P does not exist ( If the answer to step S30 is No, the process ends. If so (Yes in step S30), the head H of the subject P is determined based on the acquired received signal. The height position is calculated (step S40), and the rising speed of the head H is calculated based on the calculation result. (Step S50) The calculation unit 43 stores the calculated rising speed in the storage unit 45.

[0030] The notification control unit 44 determines whether the rising speed exceeds a threshold value (step S60). When the control unit 44 determines that the rising speed does not exceed the threshold value (No in step S60), The process ends. When the notification control unit 44 determines that the rising speed exceeds the threshold (step Yes in S60), and the identification information of the specific subject P1, who is the subject P whose rising speed exceeds the threshold. , and the rising speed are stored in the storage unit 45 (step S70).

[0031] FIG. 7 is a flowchart showing an example of an attention-calling operation of the measurement device 100 according to this embodiment. As shown in FIG. 7, the notification control unit 44 detects that a specific target person P1 is present in the bathroom 50. The notification control unit 44 determines whether or not a specific target person P1 is present in the bathroom 50 (step S80). If it is determined that there is no such file (No in step S80), the process ends. The No judgment in S80 is based on the fact that the rising speed does not exceed the threshold in the above measurement operation. This includes cases where the identification information of the designated person P1 is not stored. If it is determined that the specific target person P1 exists in the terminal 53 (Yes in step S80), The notification unit 53a notifies the user of the attention information (step S90), and the process ends.

[0032] As described above, the measuring device 100 according to this embodiment is installed on the ceiling 52 in the bathroom 50. The transmitting unit 10 transmits ultrasonic waves S, and the receiving unit 12 receives ultrasonic waves S reflected in the bathroom 50. When a subject P is present in the bathroom 50, the ultrasonic waves reflected by the head H of the subject P are Based on the reception result of S, the head height position of the subject P is calculated, and based on the calculation result, the head height position of the subject P is calculated. and a calculation unit 43 for calculating the rising speed.

[0033] According to this configuration, the target person P is detected based on the reception result of the ultrasonic waves S reflected by the head H of the target person P. The head height position of the person P is calculated, and the rising speed of the head H is calculated based on the calculation result. Compared with the configuration that detects a change in depth, the rise of the head H when the subject P in the bathroom 50 stands up This makes it possible to accurately detect the speed.

[0034] The measuring device 100 according to this embodiment includes an identification unit for identifying a subject P present in the bathroom 50. a notification control unit 44, and a storage unit for storing identification information of the subject P whose rising speed exceeds the threshold value. 45, and based on the identification result by the notification control unit 44 and the identification information stored in the storage unit 45 When a specific target person P1 whose rising speed exceeds the threshold is present in the bathroom 50, a warning message is sent. According to this configuration, when the rising speed of the head exceeds the threshold value, a notification unit 53a is provided. This makes it possible to reliably notify the target person of warning information.

[0035] In the measuring device 100 according to this embodiment, the threshold value of the rate of increase is determined based on the temperature in the bathroom 50 and According to this configuration, the temperature distribution in the bathroom 50 can be changed based on at least one of the temperature distribution. A threshold is set according to at least one of the temperature and temperature distribution, so the occurrence of heat shock is can be reduced more reliably.

[0036] In the measuring device 100 according to this embodiment, a bathtub 51 is placed in a bathroom 50. The calculation unit 43 detects the temperature reflected by the head H of the subject P when the subject P stands up from the bathtub 51. According to this configuration, the rising speed of the bathtub 51 is calculated based on the reception result of the ultrasonic wave S. The speed at which subject P stands up when standing up from a submerged state can be measured efficiently.

[0037] In the measuring device 100 according to this embodiment, the attention-calling information is This information urges the subject P to slow down the speed at which the subject P rises. By notifying the subject P1 of warning information, the occurrence of heat shock can be reduced. This can be done.

[0038] The technical scope of the present invention is not limited to the above-described embodiment, and any modifications may be made without departing from the spirit of the present invention. For example, in the above embodiment, the measurement device 100 Although the configuration in which the measuring device is installed in a bathroom 50 has been described as an example, the present invention is not limited to this. 00 may be placed in a room other than the bathroom 50.

[0039] Furthermore, the measuring device 100 described in the above embodiment may be configured to, for example, When it is detected that the subject is immersed in the bathtub 51, the transmitter 10 transmits the subject's head and By transmitting ultrasonic waves S toward the water surface in the bathtub 51 and receiving the reflected waves with the receiving unit 20, The control unit 40 calculates the distance between the subject's head and the water surface, and determines the subject's It may also be used as a drowning detection device that determines whether a person is in a drowning state.

[0040] Furthermore, the measurement device 100 described in the above embodiment is configured to measure the specific subject P1 from the next time onwards. Although the configuration for issuing warning information when the user is in the bathroom 50 has been described, the present invention is not limited to this. For example, if it is detected that the rising speed of the head H of the subject P exceeds a threshold, At this point, attention-calling information may be notified to the subject P.

[0041] In the above embodiment, the measurement device 100 measures the subject P based on the detection result of the detection unit 30. The configuration has been described as an example in which the target person P is identified and the identification information of the target person P is acquired. The identification of the subject P and the acquisition of the identification information are not performed by a means other than the detection unit 30. For example, by inputting the identification information of the subject P to the control unit 40 via an input unit (not shown), The configuration may be such that: [Explanation of symbols]

[0042] H...Head, H1,H2,H3...Position, I...Alert information, P...Target, P1...Specific target person, S...ultrasonic wave, 10...transmitter, 20...receiver, 30...detector, 40...controller, 41...transmitter signal control unit, 42...signal acquisition unit, 43...calculation unit, 44...notification control unit, 45...storage unit, 50... Bathroom, 51... bathtub, 52... ceiling part, 53... terminal, 53a... alarm part, 100... measuring device

Claims

1. a transmitter provided on the ceiling of the room and configured to emit ultrasonic waves; a receiving unit that receives the ultrasonic waves reflected in the room; a calculation unit that calculates a head height position of the subject based on a reception result of the ultrasonic waves reflected by the head of the subject when the subject is present in the room, and calculates a rising speed of the head based on the calculation result; a notification control unit that determines whether the rising speed exceeds a threshold, and notifies the subject of attention information when it is determined that the rising speed exceeds the threshold; A measuring device comprising:

2. The threshold value of the increase rate can be changed based on at least one of the temperature and the temperature distribution in the room. The measuring device according to claim 1 .

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