Measuring apparatus

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 distance between the water surface of the bathtub and the subject's head is measured by transmitting ultrasonic waves from a transmitter installed on the ceiling of the bathroom. 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] JP 2013-34763 A 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 stands up suddenly from a bathtub. In order to detect the rising speed, it has been proposed to detect the change in the water depth in the bathtub, for example. 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. In addition, there is a demand 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 consideration of the above, and is directed to a method for detecting a head injury when a subject in a room stands up. The object of the present invention 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 that is provided on a ceiling of a room and transmits ultrasonic waves; A receiving unit that receives the ultrasonic waves reflected in the room, and a front-side ultrasonic sensor that detects the presence of a target person in the room. The head height position of the subject is determined based on a reception result of the ultrasonic wave reflected by the head of the subject. and a calculation unit that calculates the rising speed of the head based on the calculation result. Effect 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 description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram illustrating an example of a measurement device according to the present embodiment. [Diagram 2] FIG. 2 is a functional block diagram illustrating an example of the control unit. [Diagram 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. [Diagram 5] FIG. 5 is a diagram showing an example of a measurement operation 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 PREFERRED EMBODIMENTS

[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 embodiment. , which are replaceable and easily replaceable by a person skilled in the art, or which are substantially the same.

[0010] FIG. 1 is a diagram showing a schematic diagram of an example of a measuring device 100 according to the present 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 bathroom 50 has a wall portion including a bathtub 51. The terminal 53 is equipped with various functions such as adjusting the temperature of the water inside the bathtub. 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 of the bathroom 50 and receives ultrasonic waves S The receiving unit 20 receives the ultrasonic waves S reflected by the head H of the subject P. The receiving unit 20 receives ultrasonic waves 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 the subject P with a resolution sufficient to identify the subject P using the acquired image of the subject P. The detection 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 comprehensively controls the operation of the measurement device 100. The control unit 40 includes a CPU (CPU Central Processing Unit and other processing units, and RAM (Random Access Memory) m Access Memory) 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 memory unit 45.

[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 acquiring unit 42 acquires the reception signal of the ultrasonic wave S received by the receiving 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 head H of the subject P is detected. Based on the result of receiving the ultrasonic waves, the head height position of the subject P is calculated. Based on the head height position, the rising speed of the head H is calculated. 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 the presence of a target person in the bathroom 50 based on the detection result of the detection unit 30. In this case, a target person present in the bathroom 50 is identified and identification information is obtained. For example, when the detection unit 30 is a photographing device such as a camera, the image is an image of the face of the subject. The identification information is not limited to the above, and may be other types of information. The detection control unit 44 judges whether the rising speed calculated by the calculation unit 43 exceeds a threshold value. The threshold for the rising speed is set based on at least one of the temperature and the temperature distribution in bathroom 50. The threshold value of the increase rate 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. The temperature distribution in one vertical section of the bathroom 50 up to the height of the upper edge may be used. 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 obtained ascent 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 memory unit 45. Based on the identification information, a subject whose increasing speed exceeds a threshold (hereinafter referred to as a specific subject) is identified. It is determined whether a specific target person is present in the bathroom 50. When the determination is made, the notification control unit 44 notifies the specific target person of attention via 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 the next time that the target person P is in the bathroom 50. The attention 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 is configured to notify the user of the notification. The information may be at least one of text and image information. If the speed at which the subject P stands up is too fast, there is a possibility that the subject P may experience heat shock when standing up. In this embodiment, by notifying the subject P of attention-calling information, the subject P is able to 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 have the subject P take an 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 includes a solid state drive. Alternatively, an external storage medium such as a portable disk may be used. The ascending speed at which the head is ascended and the identification information of the subject P who has ascended his / her head at that ascending speed are stored.

[0021] The storage unit 45 performs a process of acquiring the reception signal generated by the reception 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 ultrasonic waves 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 measuring program for causing the computer to execute the process of measuring the temperature is stored.

[0022] Next, the operation of the measurement 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 is a transmission control Under the control of unit 41, ultrasonic waves are emitted at a period of, for example, m times per second.

[0023] FIG. 3 is a diagram showing an example of a measurement operation by the measurement device 100. In FIG. 3, a subject P 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 subject P is detected by the detection unit 30, the calculation unit The calculation unit 43 determines that the subject P is present in the bathroom 50. If it is determined that a person P is present, the system performs a detection based on the reception result of the ultrasonic wave reflected by the head H of the person 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 ascent speed of the head H based on the calculated head height position. In the example shown in FIG. 3, the calculation unit 43 determines that the head height position of the subject is approximately constant at H1. 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] FIG. 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 the person has risen 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 receiving signal. The signal acquiring unit 42 acquires the reception signal generated by the receiving unit 20.

[0026] The calculation unit 43 calculates the above-mentioned peripheral frequency based on the reception result of the ultrasonic waves reflected by the head H of the subject P. The head height positions H2, H3, ..., Hn of the subject P are calculated for each period. The head height position thus calculated is stored in the memory unit 45. The calculation unit 43 performs a calculation based on the calculated head height position. In the example shown in FIG. 4, the head height position of the subject is H1. Therefore, the calculation unit 43 calculates the time until the ultrasonic wave S is emitted 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 FIG. 3 and FIG. 4, the notification control unit 44 performs the following operation based on the detection result of the detection unit 30: The notification control unit 44 identifies a person present in the bathroom 50 and acquires the identification information. The calculation unit 43 determines whether the rising speed has exceeded a threshold value. If it is determined that the rising speed exceeds the threshold, the calculated rising speed and the subject's body temperature in the bathroom 50 are compared. 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 memory 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 measurement 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 attention-calling information I is notified to the specific target person P1. By knowing this, it is possible to determine in advance that the rising speed when rising from the bathtub 51 is relatively fast. For this reason, the specific target person P1 may, for example, stand up slowly. This reduces the occurrence of heat shock. It is possible to do so.

[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 then causes the transmission unit 10 to emit ultrasonic waves S (step S10). The reflected light S is reflected in the bathroom 50 and received by the receiver 20 (step S20). The signal acquisition unit 40 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 is No in step S30, the process ends. If so (Yes in step S30), the head H of the subject P is 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), identification information of a specific subject P1 who is a subject P whose rising speed exceeds a 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 in the bathroom 50 (step S80). If it is determined that the number of the suffixes does not exist (No in step S80), the process ends. The No judgment in S80 is based on the fact that the rising speed in the above measurement operation does not exceed the threshold. This includes cases where the identification information of the designated person P1 is not stored. When 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-calling information (step S90), and the process ends.

[0032] As described above, the measuring device 100 according to this embodiment is provided on the ceiling 52 in the bathroom 50. The transmitter 10 transmits ultrasonic waves S, and the receiver 50 receives ultrasonic waves S reflected in the bathroom 50. When a subject P is present in the bathroom 50, 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 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 ultrasound 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 a 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 detect the speed accurately.

[0034] The measurement device 100 according to this embodiment includes an identification unit that identifies a subject P present in a bathroom 50. a notification control unit 44, and a storage unit for storing identification information of a subject P whose rising speed exceeds a threshold value. 45, and based on the identification result by the notification control unit 44 and the identification information stored in the memory unit 45 When a specific target person P1 whose rising speed exceeds a 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 measurement device 100 according to this embodiment, the threshold value of the rising speed is set 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 distributions. A threshold is set according to at least one of the temperature and air 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 of the subject P reflected by the head H 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. It is possible to efficiently measure the rising speed of subject P when standing up from a submerged state.

[0037] In the measuring device 100 according to this embodiment, the attention-calling information is generated when the user stands up in the bathtub 51. This is information that prompts the subject P to slow down the rising speed of the specific 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 other modifications and variations are possible 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 disposed 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] In addition, the measuring device 100 described in the above embodiment may be configured such that, for example, the detection unit 30 When it is detected that the subject is soaking in the bathtub 51, the transmitter 10 transmits the subject's head and Ultrasonic waves S are emitted toward the water surface in the bathtub 51, and the reflected waves are received by 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 or not a person is in a drowning state.

[0040] In addition, the measurement device 100 described in the above embodiment is configured to Although the configuration for notifying the attention-calling 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, warning information may be notified to the subject P.

[0041] In the above embodiment, the measurement device 100 detects 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 identification information of the subject P to the control unit 40 via an input unit (not shown) or the like, The configuration may be such that the above is performed. [Explanation of symbols]

[0042] H...Head, H1,H2,H3...Position, I...Alert information, P...Target, P1...Specific target person, S... ultrasonic wave, 10... transmitting unit, 20... receiving unit, 30... detecting unit, 40... control unit, 41... transmitting unit signal acquisition unit, 43 arithmetic 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 that is provided on the ceiling of the room and transmits 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 wave 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 increasing speed exceeds a threshold, and notifies the subject of attention information when it is determined that the increasing speed exceeds the threshold; A measuring device comprising:

2. The threshold value of the increase rate is changeable based on at least one of the temperature and the temperature distribution in the room.

2. The measuring device of claim 1.

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