JP6914526B2 - Hygiene evaluation device, hygiene evaluation photography system, photography stand, and hygiene evaluation method - Google Patents

Description

The present invention relates to a hygiene evaluation device or the like that acquires an image of a hand and calculates a score for a substance adhering to the hand.

Hand washing and disinfection of hands are essential to prevent infection. Therefore, in order to evaluate whether or not such hygienic behavior can be appropriately performed, a device for evaluating hygienic behavior regarding fingers has been conventionally developed (see, for example, Patent Document 1). By using the device, it is possible to evaluate whether or not the subject has performed an appropriate hand-washing behavior or the like.

Japanese Unexamined Patent Publication No. 2009-282442

As in the conventional example, it is possible to evaluate the hygiene condition of fingers by evaluating whether or not hygiene behavior such as hand washing behavior is properly performed, but the evaluation is an indirect evaluation, so that the accuracy is correct. Can be a little low. For example, even if the hand-washing behavior is performed, the dirt between the fingers may not be properly removed.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a hygiene evaluation device or the like capable of performing more accurate evaluation of hand hygiene.

In order to achieve the above object, the hygiene evaluation device according to the present invention includes a photographed image acquisition unit that acquires a photographed image of a hand, a calculation unit that calculates a score for a substance adhering to the hand using the photographed image, and a unit. It is provided with an output unit that outputs a score calculated by the calculation unit.
With such a configuration, using a photographed image of the hand, a substance adhering to the hand (for example, a substance remaining in a place where the hand is not washed properly or a place where a disinfectant is properly rubbed) By calculating the score for (such as substances present in), the hygiene of the hands can be evaluated more directly. As a result, more accurate evaluation becomes possible.

Further, in the hygiene evaluation device according to the present invention, the calculation unit may calculate the score by using the ratio of the region to which the substance is attached to the area of the hand.
With such a configuration, it is possible to easily evaluate whether or not the hygiene of the hands as a whole is good.

Further, in the hygiene evaluation device according to the present invention, the calculation unit may calculate the score according to whether or not the substance is attached to each predetermined part of the hand.
With such a configuration, for example, by setting appropriate parts for hands where it is important to improve hygiene, it is possible to evaluate more appropriate hygiene from the viewpoint of infection prevention. Become.

Further, in the hygiene evaluation device according to the present invention, the score may be a value relating to the degree of substances remaining on the hands that cannot be removed by hand washing.
With such a configuration, for example, it is possible to evaluate whether or not the substance rubbed into the hand before hand washing is properly removed by hand washing, that is, whether or not proper hand washing is performed.

Further, in the hygiene evaluation device according to the present invention, the score may be a value related to the degree to which the substance contained in the disinfectant is attached to the hand.
With such a configuration, for example, it is possible to evaluate whether the disinfectant has been properly rubbed over the entire hand.

Further, the hygiene evaluation device according to the present invention further includes a reception unit that receives a user identifier that identifies the user to be photographed, and the output unit outputs the score in association with the user identifier received by the reception unit. May be good.
With such a configuration, the score can be managed for each user.

Further, the hygiene evaluation device according to the present invention further includes a date and time information acquisition unit that acquires date and time information indicating the date and time when the captured image was taken, and the output unit is acquired by the score, the user identifier, and the date and time information acquisition unit. It may be output in association with the date and time information.
With such a configuration, the score for each user can be managed for each date and time. Therefore, using the result, for example, it becomes possible to confirm whether or not the hygiene condition of the user's hand is improved.

Further, in the hygiene evaluation device according to the present invention, statistical processing is performed on the reception unit that receives the user identifier that identifies the user to be photographed and the score corresponding to each of the plurality of users identified by the plurality of user identifiers received by the reception unit. The output unit may also output the result of the statistical processing, further comprising a statistical processing unit for performing the statistical processing.
With such a configuration, for example, it becomes possible to output the result of statistical processing such as the average value of scores for a plurality of users.

Further, the photographing pedestal according to the present invention includes a pedestal on which the hygiene evaluation device is detachably attached and a light source provided on the pedestal, and the photographed image acquisition unit is a hand irradiated with light from the light source. The photographed image is acquired by capturing the image.
With such a configuration, it becomes possible to evaluate the hygiene condition of the hand by using the pedestal for photographing. For example, by attaching a hygiene evaluation device composed of a mobile information terminal such as a smartphone to a shooting stand, it becomes possible to evaluate the hygiene state of the hand.

Further, in the pedestal for photographing according to the present invention, the pedestal has a pedestal on which the hygiene evaluation device is mounted and a leg attached to the pedestal, and is formed by the pedestal and the leg. The shooting space for the hands may be large enough for the shot image acquisition unit to shoot both hands at the same time.
With such a configuration, since both hands can be photographed at the same time, evaluation can be performed more efficiently as compared with the case of photographing one hand at a time.

Further, in the photographing pedestal according to the present invention, the legs may be foldably attached to the pedestal.
With such a configuration, for example, it is possible to provide a shooting stand having excellent portability and storability.

Further, the hygiene evaluation imaging system according to the present invention includes a pedestal for imaging and a hygiene evaluation device mounted on the pedestal.

Further, the hygiene evaluation method according to the present invention is a hygiene evaluation method that is processed by using a photographed image acquisition unit, a calculation unit, and an output unit, and the photographed image acquisition unit acquires a photographed image of a hand. The image acquisition step, the calculation step in which the calculation unit calculates the score for the substance adhering to the hand using the captured image, and the output step in which the output unit outputs the score calculated in the calculation step. It is prepared.

According to the hygiene evaluation device or the like according to the present invention, the hygiene condition of the hand can be evaluated more directly by calculating the score regarding the substance adhering to the hand using the photographed image of the hand. As a result, more accurate evaluation becomes possible.

A block diagram showing a configuration of a hygiene evaluation device according to a first embodiment of the present invention. A flowchart showing the operation of the hygiene evaluation device according to the same embodiment. The figure for demonstrating the part of a hand in the same embodiment. The figure which shows an example of the photographed hand in the same embodiment. The figure which shows an example of correspondence of a user identifier, date and time information, and a score in the same embodiment. A graph showing an example of a change in the score for each user in the same embodiment. A block diagram showing the configuration of the hygiene evaluation device according to the second embodiment of the present invention. A flowchart showing the operation of the hygiene evaluation device according to the same embodiment. Perspective view showing a pedestal for photographing according to Embodiment 3 of this invention. Front view showing a shooting stand according to the same embodiment Top view showing a shooting stand according to the same embodiment A perspective view showing a hygiene evaluation imaging system having an imaging stand and a hygiene evaluation device according to the same embodiment. The figure which shows an example of the structure of the computer system in each said embodiment

Hereinafter, the hygiene evaluation device according to the present invention will be described with reference to embodiments. In the following embodiments, the components and steps having the same reference numerals are the same or correspond to each other, and the description thereof may be omitted again.

(Embodiment 1)
The hygiene evaluation device according to the first embodiment of the present invention will be described with reference to the drawings. The hygiene evaluation device according to the present embodiment acquires an image of a hand and calculates a score for a substance adhering to the hand. The score will give you an idea of your hand hygiene.

FIG. 1 is a block diagram showing a configuration of a hygiene evaluation device 1 according to the present embodiment. The hygiene evaluation device 1 according to the present embodiment includes a captured image acquisition unit 11, a calculation unit 12, a reception unit 13, a date and time information acquisition unit 14, and an output unit 15. The hygiene evaluation device 1 may be a dedicated device for hand hygiene evaluation, or a general-purpose information processing device may be used for hand hygiene evaluation. In the third embodiment, the latter case, that is, a case where a hygiene evaluation device, which is a portable information terminal such as a smartphone, is used for hand hygiene evaluation will be described.

The captured image acquisition unit 11 acquires a captured image of the hand. The photographed image acquisition unit 11 may acquire the photographed image by photographing the hand, or may receive the photographed image of the hand photographed by the photographing device 7. In this embodiment, the latter case will be mainly described. The captured image is usually a still image. When a moving image is captured by the photographing device 7, one frame included in the moving image may be a captured image. The hand to be photographed may be both hands or one hand. Further, the hand to be photographed may be on the palm side, the back side of the hand, or both. From the viewpoint of evaluating the entire hand, it is preferable to photograph the front and back sides (palm side and back side) of both hands of the evaluation target person. The captured images on the front and back of both hands of the evaluation target person may be a plurality of captured images (for example, two captured images, four captured images, etc.). The captured image acquired by the captured image acquisition unit 11 may be stored in a recording medium (not shown). The timing at which the captured image acquisition unit 11 acquires the captured image does not matter. For example, when the reception unit 13 receives an instruction to acquire a photographed image, the photographed image acquisition unit 11 may acquire the photographed image. Further, the captured image acquisition unit 11 captures the captured image when the photographing area of the photographing device 7 includes a hand, that is, when the evaluation target person extends his / her hand to the photographing area of the photographing device 7. You may get it. In this case, the captured image acquisition unit 11 may acquire a captured image satisfying a predetermined condition from the continuously received captured images as a captured image used in the subsequent processing. The condition may be that the hand is detected by, for example, pattern matching.

Here, the hand to be photographed will be described separately for (1) evaluation of hand washing and (2) evaluation of hand disinfection.
(1) When evaluating hand washing The evaluation target person rubs a specific substance over the entire hand before washing the hands. The specific substance may reflect light having a wavelength other than visible light (for example, ultraviolet rays). In the present embodiment, the case where the specific substance is a fluorescent substance will be mainly described. The fluorescent substance may be one that fluoresces when irradiated with ultraviolet rays. After rubbing the specific substance in the hand, the evaluation subject carries out hand washing as usual using soap or the like. Then, the photographing device 7 photographs the hand after washing the hand. It is preferable that the photographing is performed in a state where the light source 6 is irradiating light for facilitating the detection of the specific substance adhering to the hand. By doing so, it is possible to more easily determine whether or not a specific substance is attached to the hand in the photographed image. When the specific substance is a fluorescent substance, the light source 6 may irradiate ultraviolet rays. The light source 6 that irradiates ultraviolet rays may be, for example, a black light, an ultraviolet lamp, an ultraviolet LED, or another light source that emits ultraviolet rays. In the present embodiment, the case where the light source 6 is a black light will be mainly described. In the case of (1), the less the specific substance remains in the hands, the more appropriately the hand washing can be performed, and the better the hygiene condition is.

(2) When evaluating hand disinfection The evaluation subject rubs a disinfectant containing a specific substance over the entire hand. Then, the photographing device 7 photographs the disinfected hand. As in (1), it is preferable that the photographing is performed in a state where the light source 6 is irradiating light for facilitating the detection of the specific substance adhering to the hand. The specific substance and the light source 6 are the same as those described in (1) above. In the case of (2), the more the specific substance remains in the hands, the more appropriately the disinfection can be performed, and the better the hygiene condition is.

In the above (1) and (2), it is preferable that the specific substance is invisible in light having a wavelength in the visible light region. For example, when the evaluation target person is a medical worker, this is to prevent the patient or the like from feeling uncomfortable. On the other hand, when performing an evaluation for training such as hand washing and disinfection, for example, the specific substance may be visible in light having a wavelength in the visible light region. In that case, for example, the light source 6 may irradiate visible light. The specific substance may be, for example, a simple pigment, or may be a substance that develops color in response to stains, bacteria, or the like. In the latter case, the color after coloration may be visible with visible light.

The calculation unit 12 calculates a score for a substance adhering to the hand using the captured image. The substance is the above-mentioned specific substance. The score may be, for example, a score that increases as the degree of the substance attached to the hand increases, or a score that increases as the degree of the substance attached to the hand decreases. good. In the case of (1) above, the score is a value related to the degree of substances remaining in the hands that cannot be removed by hand washing. In that case, the better the hygiene, the less the score shows that there is less substance on the hands. This is because when the amount of substances adhering to the hands is small, there is little unwashed residue. Further, in the case of (2) above, the score is a value related to the degree to which the substance contained in the disinfectant is attached to the hand. In that case, the higher the score, the better the hygiene. This is because when the amount of the substance attached to the hand is large, the area where the disinfectant is not rubbed is small.

The calculation unit 12 may calculate the score by using, for example, the ratio of the region to which the substance is attached to the area of the hand. More specifically, the calculation unit 12 may calculate the score by specifying the area of the region to which the substance is attached and dividing the area by the area of the hand. In this case, the score may be, for example, a real number from 0 to 1. The calculation unit 12 may calculate the area of the hand by detecting the area of the hand in the captured image by, for example, contour detection, skin color detection, pattern matching, or the like, and calculating the area of the area. Further, the calculation unit 12 compares a value of 1 or more such as brightness, lightness, hue, and saturation with a predetermined threshold value to determine a portion where a substance is attached and a portion where the substance is not attached in the captured image. May be made to distinguish. The distinction may be made, for example, for each pixel of the captured image, or for each of a plurality of adjacent pixels (for example, 2 × 2 4 pixels, 3 × 3 9 pixels, etc.). When a distinction is made between a portion where a substance is attached and a portion where the substance is not attached to each of a plurality of adjacent pixels, for example, when the substance is attached to a pixel above the threshold value in the plurality of pixels. , It may be determined that a substance is attached to the plurality of pixels. The threshold value may be, for example, half the number of pixels in a plurality of adjacent pixels, or may be the number of pixels other than that. In addition, when distinction is made between a portion to which a substance is attached and a portion to which a substance is not attached to each of a plurality of adjacent pixels, for example, one or more of the brightness, brightness, hue, saturation, etc. of the plurality of pixels. It may be determined whether or not the substance is attached by comparing the average value of the above with the threshold value.

Further, the calculation unit 12 may calculate the score according to whether or not the substance is attached to each predetermined portion of the hand, for example. The score may be, for example, the number of sites to which a substance is attached, or the number of sites to which a substance is not attached. The part of the hand may be predetermined, for example, as shown in FIG. In FIG. 3, the front and back of the right hand are divided into 36 parts from A1 to A36. Similarly, the front and back of the left hand may be divided into 36 parts from A37 to A72. When deciding each part, decide the part so that the area is small for the part where it is important to improve hygiene, such as between the fingers and fingers, and for the part where it is not, the area is The site may be determined to be large. By doing so, it is possible to increase the weight of the points where it is important to improve hygiene in the score, and to evaluate whether the important points are in proper hygiene. Become. Further, when the weight is set according to the part, the calculation unit 12 may calculate the score by performing weighting addition. For example, for places where it is important to improve hygiene, such as fingertips, weights may be set so as to have a large effect on the score. Regarding whether or not a substance is attached to a certain part, the calculation unit 12 compares, for example, the ratio of the area where the substance is attached to the area of the part with a threshold value (for example, 50% or 60%). You may judge by doing. For example, with respect to a portion where the substance is attached to a region having a ratio equal to or higher than the threshold value, the calculation unit 12 may determine that the substance is attached to the portion.

Here, the calculation unit 12 describes a method of specifying a region corresponding to a plurality of predetermined parts (for example, parts A1 to A36 shown in FIG. 3) in the hand image included in the captured image. , Briefly explain. For example, the calculation unit 12 extracts the contour of the hand image included in the captured image, converts the shape of the hand such as FIG. Depending on the position of the boundary after conversion (for example, the position of the broken line shown in FIG. 3), a region corresponding to a plurality of predetermined parts may be specified in the hand image. When a plurality of predetermined parts are determined by using the feature points, the calculation unit 12 extracts the feature points from the hand image included in the captured image, and the extracted features. The points may be used to specify regions corresponding to a plurality of predetermined parts. Further, when the predetermined portion is determined, for example, 20% of the area on the tip side of the finger, 80% of the area on the root side of the finger, etc., the calculation unit 12 may perform pattern matching or the like. The area of each finger may be specified, and a predetermined area may be specified in that area. The ratio such as 20% may be a ratio related to the area. In addition, the calculation unit 12 may specify a region corresponding to a plurality of predetermined parts in the hand image included in the captured image by another method.

The reception unit 13 receives a user identifier that identifies the user to be photographed. Strictly speaking, the user to be photographed is a user who has a hand to be photographed. The user is the person to be evaluated. It is preferable that the user identifier is received so that the correspondence between the user identifier received by the reception unit 13 and the captured image can be understood. For example, after the user identifier is accepted, the user's hand identified by the user identifier may be photographed so that the user identifier and the photographed image can be associated with each other. The reception unit 13 may accept the user identifier by, for example, accepting the selection of one user identifier among a plurality of user identifiers. When only one user uses the hygiene evaluation device 1, the reception unit 13 may accept, for example, by reading a user identifier stored in a recording medium (not shown). The user identifier may be, for example, the user's name, the user's telephone number, or other information that can identify the user. Further, the reception unit 13 may accept other than the user identifier. For example, the reception unit 13 may accept an instruction to acquire a captured image.

The reception unit 13 may receive, for example, information input from an input device (for example, a keyboard, mouse, touch panel, etc.), or may receive information transmitted via a wired or wireless communication line. Information read from a predetermined recording medium (for example, an optical disk, a magnetic disk, a semiconductor memory, etc.) may be accepted. The reception unit 13 may or may not include a device for receiving (for example, a modem, a network card, etc.). Further, the reception unit 13 may be realized by hardware, or may be realized by software such as a driver that drives a predetermined device.

The date and time information acquisition unit 14 acquires date and time information indicating the date and time when the captured image was captured. The date and time information may indicate the exact date and time at the time of shooting, or may indicate the date and time close to the time of shooting. The date / time information acquisition unit 14 may acquire date / time information from, for example, a captured image, or may acquire date / time information from a calendar unit or a clock unit (not shown). In the former case, the shooting date and time is included in the header or the like of the shot image, and the date and time information acquisition unit 14 may acquire the shooting date and time by reading the date and time information indicating the shooting date and time from the shot image. Further, when the date and time information is acquired from the calendar unit or the like, it is preferable that the date and time information is acquired so that the time when the photographed image is acquired by the photographed image acquisition unit 11 and the time when the date and time information is acquired are close to each other. Is. In the present embodiment, a case where the date / time information acquisition unit 14 acquires date / time information from a calendar unit or a clock unit (not shown) will be mainly described.

The output unit 15 outputs the score calculated by the calculation unit 12. Here, this output may be displayed on a display device (for example, a liquid crystal display, etc.), may be transmitted via a communication line to a predetermined device, may be printed by a printer, or may be an audio output by a speaker. , It may be stored in a recording medium, or it may be handed over to another component. The output unit 15 may or may not include a device that outputs (for example, a display device, a printer, etc.). Further, the output unit 15 may be realized by hardware, or may be realized by software such as a driver that drives those devices. In the present embodiment, the case where the output unit 15 transmits the score to the server (not shown) will be mainly described. Further, the output unit 15 may associate the score with the user identifier received by the reception unit 13 and the date and time information acquired by the date and time information acquisition unit 14 and transmit the score to the server. The server is a server that manages scores for each user. Further, the server may receive similar information from two or more hygiene evaluation devices 1.

Next, the operation of the hygiene evaluation device 1 will be described with reference to the flowchart of FIG.
(Step S101) The reception unit 13 determines whether or not the user identifier has been accepted. Then, if the user identifier is accepted, the process proceeds to step S102, and if not, the process of step S101 is repeated until the user identifier is accepted.

(Step S102) The captured image acquisition unit 11 acquires a captured image of the user's hand identified by the user identifier received in step S101. The captured image acquisition unit 11 may acquire a plurality of captured images corresponding to the front and back of both hands of the user, for example.

(Step S103) The calculation unit 12 calculates a score regarding the substance adhering to the hand using the captured image acquired in step S102. In step S102, when a plurality of captured images corresponding to one evaluation target person are acquired, the score may be calculated using the plurality of captured images.

(Step S104) The date / time information acquisition unit 14 acquires date / time information indicating the date / time at that time from a calendar unit or a clock unit (not shown).

(Step S105) The output unit 15 transmits the user identifier acquired in step S101, the score acquired in step S103, and the date and time information acquired in step S104 in association with each other to the server. Then, the process returns to step S101.
The order of processing in the flowchart of FIG. 2 is an example, and the order of each step may be changed as long as the same result can be obtained. Further, in the flowchart of FIG. 2, the process ends when the power is turned off or an interrupt for the end of the process occurs.

Next, the operation of the hygiene evaluation device 1 according to the present embodiment will be described with reference to specific examples. In this specific example, a case where the hand washing is evaluated as described in (1) above will be described. In this specific example, if the fluorescent substance remains in more than half of the area of each of the 72 parts of both hands, the score is added by 1. Therefore, the score is any value from 0 to 72, and the lower the score, the better the hygiene (that is, the hands can be washed properly).

First, a user identified by the user identifier "U001" (hereinafter, may also be referred to as "user U001"; the same applies to other users) holds a lotion containing a fluorescent substance in both hands before washing hands. Suppose that you wash your hands after rubbing it evenly on the front and back of the. Then, the user U001 operates the hygiene evaluation device 1 and inputs its own user identifier "U001". Then, the user identifier is accepted by the reception unit 13 and passed to the output unit 15 (step S101). After that, when the user U001 extends the palm sides of both hands to the photographing area of the photographing device 7, the photographed image acquisition unit 11 detects this and acquires the photographed image shown in FIG. It is assumed that the photographing area is irradiated with ultraviolet rays from the light source 6 which is a black light. In the captured image of FIG. 4, the broken line indicating the boundary of each part is added for convenience of explanation and is not included in the captured image. The shaded areas 101 to 103 are fluorescent areas. After that, when the user U001 similarly extends the back sides of both hands to the photographing area, the photographed image is acquired again accordingly (step S102). In this way, the captured images of the front and back of both hands of the user U001 are acquired.

Next, the calculation unit 12 sets the score to 0, which is the initial value. Further, since the fluorescence region exists in more than half of the area in each of the parts A37, A47, A48, and A66 in the captured image of FIG. 4 on the palm side, the calculation unit 12 adds 4 to the score. Although fluorescent regions exist in some of the parts A57, A65, etc. in the captured image of FIG. 4, the scores are not counted for those parts because they are not more than half of the area of the parts. .. Further, in the photographed image on the back side of the hand, it is assumed that the fluorescence region exists in more than half of the area in the two parts. Then, the calculation unit 12 adds 2 to the score and passes the result total score “6” to the output unit 15 (step S103).

Upon receiving the user identifier and the score, the output unit 15 passes an instruction to acquire the date and time information to the date and time information acquisition unit 14. Upon receiving the instruction, the date and time information acquisition unit 14 acquires date and time information indicating the date and time at that time from a calendar unit and a clock unit (not shown) and passes it to the output unit 15 (step S104). It is assumed that the date and time indicated by the date and time information was 9:15 on July 3, 2017. Upon receiving the date and time information, the output unit 15 sends a packet containing the user identifier "U001", the score "6", and the date and time information "July 3, 2017 9:15" to the preset server address. Transmit (step S105). The packet is received by a server (not shown), and the user identifier, the date and time information, and the score are associated with each other and stored in the recording medium.

After that, the same process is repeated for other users, and the score after hand washing is associated with the user identifier and the like and transmitted to the server. Further, it is assumed that the score after hand washing of the user U001 and the like is transmitted to the server even after July 4th. As a result, it is assumed that the user identifier and the like stored in the server are shown in FIG. After that, the user U001 or the like can know the change in the score of each user by operating the information processing device or the like to access the server. For example, the server may output the graph shown in FIG. 6 according to the score or the like shown in FIG. By outputting the graph of FIG. 6, it is possible to grasp the change in the hygiene state of each user. For example, user U003 continues to have a higher score than other users, so he can be instructed to wash his hands more carefully.

As described above, according to the hygiene evaluation device 1 according to the present embodiment, a score regarding the hygiene state of the hand can be obtained by using the photographed image of the hand of the evaluation target person. Since the score is a score related to substances adhering to the hand, it is possible to directly evaluate the hygiene condition of the hand rather than indirectly, and a more accurate evaluation becomes possible. Further, by transmitting the user identifier, the score, and the date and time information to the server, the score for each user can be managed for each date and time on the server. As a result, it becomes possible to know the hygiene status of the user's hands in chronological order, and to guide users who are continuously inappropriate for hand washing and hand disinfection, and for users who are continuously appropriate for hand washing. You can commend. In addition, by comparing the hygiene of the hands of multiple users, it is possible to give a game to the improvement of the hygiene of the hands, and each evaluation target person competes with other evaluation target persons for the hand. You will be able to improve your hygiene.

In the present embodiment, the case where the output unit 15 transmits the score, the user identifier, and the date and time information in association with each other to the server has been mainly described, but it may not be the case. The output unit 15 may display or store such information.

Further, in the present embodiment, the case where the hygiene evaluation device 1 includes the date and time information acquisition unit 14 has been described, but the hygiene evaluation device 1 does not have to include the date and time information acquisition unit 14. In that case, the output unit 15 may output the user identifier and the score in association with each other.

Further, in the present embodiment, the case where the output unit 15 outputs the user identifier received by the reception unit 13 in association with the score has been mainly described, but it may not be the case. The output unit 15 may display or print the score calculated by the calculation unit 12. In that case, the hygiene evaluation device 1 does not have to include the reception unit 13 that receives the user identifier.

(Embodiment 2)
The hygiene evaluation device according to the second embodiment of the present invention will be described with reference to the drawings. The hygiene evaluation device according to the present embodiment statistically processes the score for each user.

FIG. 7 is a block diagram showing the configuration of the hygiene evaluation device 2 according to the present embodiment. The hygiene evaluation device 2 according to the present embodiment includes a captured image acquisition unit 11, a calculation unit 12, a reception unit 13, an output unit 15, a storage unit 21, and a statistical processing unit 22. The configurations and operations other than the storage unit 21 and the statistical processing unit 22 are the same as those in the first embodiment except as specified below, and detailed description thereof will be omitted. Further, it is assumed that the user identifier received by the reception unit 13 and the score of the user identified by the user identifier calculated by the calculation unit 12 are associated and stored in the storage unit 21. The output unit 15 also outputs the result of statistical processing.

As described above, the storage unit 21 stores the user identifier and the score in association with each other for each user. The storage in the storage unit 21 may be temporary storage in RAM or the like, or long-term storage. The storage unit 21 can be realized by a predetermined recording medium (for example, a semiconductor memory, a magnetic disk, or the like).

The statistical processing unit 22 performs statistical processing on the scores corresponding to the plurality of users identified by the plurality of user identifiers received by the reception unit 13. Specifically, the statistical processing unit 22 may read a plurality of scores corresponding to a plurality of users from the storage unit 21 and perform statistical processing on the read plurality of scores. The statistical processing may be, for example, acquisition of representative values, calculation of values related to the distribution of data, or other statistical processing. The representative value may be, for example, an average value or a median value. Further, the value related to the distribution of the data may be, for example, a variance or a standard deviation. The statistical processing unit 22 may perform statistical processing using, for example, the latest score of each user. In addition, the score to be statistically processed may be, for example, within a predetermined period (for example, within the latest week). In that case, the hygiene evaluation device 2 may also have the date and time information acquisition unit 14. Then, the storage unit 21 may store the score in association with the date and time information acquired by the date and time information acquisition unit 14. The output unit 15 also outputs the average value or the like as a result of the statistical processing. The result of the statistical processing may be output together with the score calculated by the calculation unit 12, or may be output separately.

Next, the operation of the hygiene evaluation device 2 will be described with reference to the flowchart of FIG. In the flowchart of FIG. 8, the processes of steps S101 to S103 are the same as those of the flowchart of FIG. 2, and the description thereof will be omitted. Further, in step S101, if the received user identifier is not stored in the storage unit 21, the reception unit 13 shall store the user identifier in the storage unit 21.

(Step S201) The calculation unit 12 stores the score calculated in step S103 in the storage unit 21 in association with the user identifier received in step S101. Since the user identifier received in step S101 has been stored in the storage unit 21 up to that point, the calculation unit 12 stores the calculated score in the storage unit 21 so that the correspondence with the user identifier can be known. And. If the score corresponding to the user identifier has been accumulated before, the calculation unit 12 may accumulate a new score by overwriting, or accumulates the score separately from the previous scores. You may. Even in the latter case, it is preferable that the score is accumulated so that the last accumulated score can be identified.

(Step S202) The statistical processing unit 22 performs statistical processing using the score for each user identifier stored in the storage unit 21. It is preferable that the statistical processing is performed using the latest score corresponding to each user identifier, that is, the score accumulated last. The result of the statistical processing may also be stored in the storage unit 21.

(Step S203) The output unit 15 outputs the score calculated by the calculation unit 12 and the result of the statistical processing by the statistical processing unit 22. Then, the process returns to step S101. The output may be, for example, a display for the user.
The order of processing in the flowchart of FIG. 8 is an example, and the order of each step may be changed as long as the same result can be obtained. Further, in the flowchart of FIG. 8, the process ends when the power is turned off or an interrupt for the end of the process occurs.

As described above, according to the hygiene evaluation device 2 according to the present embodiment, the user can also know the result of the statistical processing. For example, if the statistical processing is the calculation of the average value, the user can know the average value and his / her own score, and can know whether the hand-washing condition or the disinfection condition is better than the average value. Will be. As a result, the user can be given an opportunity to improve the hygiene of the hand.

(Embodiment 3)
The hygiene evaluation imaging system according to the third embodiment of the present invention will be described with reference to the drawings. The hygiene evaluation imaging system according to the present embodiment includes a hygiene evaluation device and an imaging stand on which the hygiene evaluation device can be mounted.

9 is a perspective view of the photographing pedestal 3 according to the present embodiment, FIG. 10 is a front view of the photographing pedestal 3, and FIG. 11 is a top view of the photographing pedestal 3. FIG. 12 is a perspective view of the hygiene evaluation imaging system 5 according to the present embodiment.

The hygiene evaluation imaging system 5 according to the present embodiment includes an imaging stand 3 and a hygiene evaluation device 4. The photographing pedestal 3 is to which the hygiene evaluation device 4 is detachably attached, and includes a pedestal 31 and a light source 32 provided on the pedestal 31. The hygiene evaluation device 4 according to the present embodiment is a portable information terminal that can be carried. The mobile information terminal may be, for example, a smartphone, a tablet terminal, a PDA (Personal Digital Assistant), or the like. The configuration and operation of the hygiene evaluation device 4 are the same as those of the hygiene evaluation devices 1 and 2 according to the first and second embodiments, and detailed description thereof will be omitted. It is assumed that the captured image acquisition unit 11 of the hygiene evaluation device 4 captures an image. Therefore, it is assumed that the portable information terminal which is the hygiene evaluation device 4 has a photographing function.

The gantry 31 includes a pedestal portion 31a on which the hygiene evaluation device 4 is mounted, and a leg portion 31b attached to the pedestal portion 31a. The base portion 31a is provided with an opening 31c, and the hygiene evaluation device 4 which is a portable information terminal can be detachably attached to the opening 31c. In the present embodiment, the area of the opening 31c on the lower surface side is smaller than the area of the opening 31c on the upper surface side of the base portion 31a, and the area of the opening 31c on the upper surface of the base portion 31a is a hygiene evaluation device. It is assumed that the area of the opening 31c on the lower surface of the base portion 31a is larger than the area in the surface direction of 4 and is smaller than the area in the surface direction of the hygiene evaluation device 4. Therefore, as shown in FIG. 12, the hygiene evaluation device 4 can be mounted on the base 31a by mounting the hygiene evaluation device 4 on the opening 31c from above. Needless to say, the hygiene evaluation device 4 may be attached to the base 31a by any other method.

As shown in FIG. 10, the two legs 31b are foldably attached to the base 31a by hinges 31d, respectively. Therefore, when the gantry 31 is to be carried or stored, the portability and storability can be improved by folding the legs 31b. The number of legs 31b does not matter. The number of legs 31b may be one or three or more.

Further, the shooting space 40 for the hands formed by the base portion 31a and the leg portions 31b may be large enough for the captured image acquisition unit 11 to photograph both hands at the same time. Therefore, for example, in FIG. 10, the width W of the two legs 31b may be a length larger than the width of both hands, for example, 30 cm or more or 40 cm or more.

As shown in FIG. 11, light sources 32 are provided in a row on both sides of the opening 31c on the lower surface side of the base portion 31a. The light source 32 is provided so as to irradiate the photographing space 40, and may be, for example, a black light or an ultraviolet LED, or a light source that emits light of another wavelength. The photographed image acquisition unit 11 of the hygiene evaluation device 4 acquires the photographed image by photographing the image of the hand irradiated with the light from the light source 32.

Next, a specific method for evaluating the hygiene state using the hygiene evaluation imaging system 5 according to the present embodiment will be briefly described.
First, as shown in FIG. 12, the user attaches the hygiene evaluation device 4 which is a smartphone to the opening 31c of the base portion 31a, and turns on the light source 32. Then, as in the specific example of the first embodiment, the lotion containing the fluorescent substance is rubbed into the hands, the hands are washed, and both hands after the hand washing are inserted into the photographing space 40. When the photographed image acquisition unit 11 of the hygiene evaluation device 4 detects the shape of the hand, it photographs the hand shape and acquires the photographed image. After that, when the user changes the front and back of the hand and then inserts both hands into the shooting space 40 again, shooting is performed again and a shot image is acquired accordingly. Subsequent acquisition of the score and processing of output of the score and the like are the same as those in the first and second embodiments, and detailed description thereof will be omitted. The score or the like may be displayed on the touch panel of the hygiene evaluation device 4, or may be transmitted from the hygiene evaluation device 4 to the server.

As described above, according to the hygiene evaluation imaging system 5 according to the present embodiment, the hygiene evaluation can be easily performed by the imaging stand 3 and the hygiene evaluation device 4 such as a smartphone. In particular, since the hygiene evaluation can be performed using a smartphone or the like owned by the user, the threshold for performing the hygiene evaluation can be lowered, and the hygiene condition of the hands of more users can be improved. It is thought that it will be.

In the present embodiment, the case where the leg portion 31b is foldable has been described, but it is not necessary. When the gantry 31 is not required to be highly portable or storable, the legs 31b may be non-foldable, that is, fixed to the pedestal 31a.

Further, in the present embodiment, the case where both hands can be photographed at the same time in the photographing space 40 has been described, but this may not be the case. For example, when it is desired to make the gantry 31 smaller, the photographing space 40 may have a size that allows only one hand to be inserted.

Further, in the present embodiment, the hygiene evaluation device 4 and the light source 32 may be linked so that the light source 32 is turned on only when the hand is photographed. In that case, for example, the hygiene evaluation device 4 and the light source 32 are connected by wire or wirelessly (for example, Wi-Fi or Bluetooth (registered trademark)), and the photographed image is acquired by the photographed image acquisition unit 11. The lighting instruction may be transmitted from the hygiene evaluation device 4 to the light source 32 only when the operation is performed. Further, the light source 32 may be turned on only when the hand is photographed according to the lighting instruction.

Further, in each of the above embodiments, the captured image acquisition unit 11 may acquire a captured image only when light is emitted from the light sources 6 and 32. The captured image acquisition unit 11 determines whether or not the light sources 6 and 32 are lit by detecting the brightness in the shooting area, detecting the light of a predetermined wavelength, or the like, and determines that the light sources 6 and 32 are lit. Only the captured image may be acquired.

Further, in the above-described first and second embodiments, the case where the hygiene evaluation devices 1 and 2 are stand-alone has been described, but the hygiene evaluation devices 1 and 2 may be stand-alone devices and may be a server in the server / client system. It may be a device. In the latter case, the captured image acquisition unit, the reception unit, and the output unit may acquire the photographed image, receive the information, and output the information via the communication line.

Further, in each of the above embodiments, each process or each function may be realized by centralized processing by a single device or a single system, or distributed processing by a plurality of devices or a plurality of systems. It may be realized by being done.

Further, in each of the above-described embodiments, the information transfer performed between the components is, for example, one component when the two components that transfer the information are physically different. It may be performed by the output of information by the other component and the reception of information by the other component, or when the two components that pass the information are physically the same, one of the components is used. It may be performed by moving from the processing phase corresponding to the element to the processing phase corresponding to the other component.

Further, in each of the above-described embodiments, information related to the processing executed by each component, for example, received, acquired, selected, generated, transmitted, or received by each component. Information, threshold values, mathematical formulas, addresses, and the like used by each component in processing may be temporarily or for a long period of time in a recording medium (not shown) even if they are not specified in the above description. .. In addition, each component or a storage unit (not shown) may store information on a recording medium (not shown). Further, the information may be read from the recording medium (not shown) by each component or a reading unit (not shown).

Further, in each of the above embodiments, when the information used in each component or the like, for example, the information such as the threshold value and the address used in the processing by each component and various setting values may be changed by the user, Although not specified in the above description, the user may or may not be able to change the information as appropriate. When the information can be changed by the user, the change is realized by, for example, a reception unit (not shown) that receives a change instruction from the user and a change unit (not shown) that changes the information in response to the change instruction. You may. The reception unit (not shown) may accept the change instruction from, for example, an input device, information transmitted via a communication line, or information read from a predetermined recording medium. ..

Further, in each of the above embodiments, when two or more components included in the hygiene evaluation devices 1, 2, and 4 have a communication device, an input device, or the like, the two or more components are physically single devices. Or may have separate devices.

Further, in each of the above-described embodiments, each component may be configured by dedicated hardware, or a component that can be realized by software may be realized by executing a program. For example, each component can be realized by a program execution unit such as a CPU reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory. At the time of execution, the program execution unit may execute the program while accessing the storage unit or the recording medium. The software that realizes the hygiene evaluation devices 1, 2 and 4 in each of the above embodiments is the following program. That is, in this program, the computer uses a photographed image acquisition unit that acquires a photographed image of the hand, a calculation unit that calculates a score related to a substance adhering to the hand using the photographed image, and a score calculated by the calculation unit. It may be a program for functioning as an output unit for output.

In the above program, the functions realized by the above program do not include functions that can be realized only by hardware. For example, the functions realized only by hardware such as a modem and an interface card in the acquisition unit for acquiring information and the output unit for outputting information are not included in at least the functions realized by the above program.

Further, this program may be executed by being downloaded from a server or the like, and the program recorded on a predetermined recording medium (for example, an optical disk such as a CD-ROM, a magnetic disk, a semiconductor memory, etc.) is read out. May be performed by. Further, this program may be used as a program constituting a program product.

Further, the number of computers that execute this program may be singular or plural. That is, centralized processing may be performed, or distributed processing may be performed.

FIG. 13 is a diagram showing an example of a computer system 900 that executes the above program and realizes the hygiene evaluation devices 1, 2, and 4 according to the above embodiments. Each of the above embodiments can be realized by computer hardware and a computer program executed on it.

In FIG. 13, the computer system 900 is connected to the MPU (Micro Processing Unit) 911, a program such as a bootup program, a ROM 912 such as an application program, a system program, and a flash memory for storing data, and the MPU 911. It includes a RAM 913 that temporarily stores instructions of an application program and provides a temporary storage space, a touch panel 914, a wireless communication module 915, and a bus 916 that interconnects the MPU 911, ROM 912, and the like. A wired communication module may be provided instead of the wireless communication module 915. Further, instead of the touch panel 914, a display and an input device such as a mouse or a keyboard may be provided.

The program for causing the computer system 900 to execute the functions of the hygiene evaluation devices 1, 2 and 4 according to each of the above embodiments may be stored in the ROM 912 via the wireless communication module 915. The program is loaded into RAM 913 at run time. The program may be loaded directly from the network.

The program does not necessarily have to include an operating system (OS), a third-party program, or the like that causes the computer system 900 to execute the functions of the hygiene evaluation devices 1, 2, and 4 according to each of the above embodiments. The program may contain only parts of instructions that call the appropriate functions or modules in a controlled manner to achieve the desired result. It is well known how the computer system 900 works, and detailed description thereof will be omitted.

Further, it goes without saying that the present invention is not limited to the above embodiments, and various modifications can be made, and these are also included in the scope of the present invention.

From the above, the hygiene evaluation device and the like according to the present invention have the effect of being able to evaluate the hygiene condition of the hand with high accuracy. It is useful as an evaluation device and the like.

1, 2, 4 Hygiene evaluation device 6, 32 Light source 3 Shooting stand 5 Hygiene evaluation shooting system 7 Shooting device 11 Shooting image acquisition unit 12 Calculation unit 13 Reception unit 14 Date and time information acquisition unit 15 Output unit 22 Statistical processing unit 31 Stand 31a Base 31b Leg

Claims (14)

The captured image acquisition unit that acquires the captured image of the hand,
Using the photographed image, a calculation unit that calculates a score according to whether or not a substance is attached to each of a plurality of predetermined parts of the hand, and a calculation unit.
A hygiene evaluation device including an output unit that outputs a score calculated by the calculation unit. The hygiene according to claim 1, wherein the hands are divided into a plurality of parts so that the area of the part is small in the place where it is important to improve the hygiene condition and the area of the part is large in the place where it is not. Evaluation device. The calculation unit according to claim 1 or 2, wherein the calculation unit determines whether or not a substance is attached to a certain part by comparing the ratio of the area where the substance is attached to the area of the part with a threshold value. Hygiene evaluation device. The hygiene evaluation device according to any one of claims 1 to 3, wherein the score is a value relating to the degree of a substance remaining in the hand that cannot be removed by hand washing. The hygiene evaluation device according to any one of claims 1 to 3, wherein the score is a value relating to the degree to which the substance contained in the disinfectant adheres to the hand. It also has a reception unit that accepts user identifiers that identify the user to be photographed.
The hygiene evaluation device according to any one of claims 1 to 5, wherein the output unit outputs the score in association with the user identifier received by the reception unit. A date and time information acquisition unit for acquiring date and time information indicating the date and time when the captured image was taken is further provided.
The hygiene evaluation device according to claim 6, wherein the output unit outputs the score, the user identifier, and the date and time information acquired by the date and time information acquisition unit in association with each other. A reception unit that accepts user identifiers that identify the user to be photographed,
A statistical processing unit that performs statistical processing on scores corresponding to a plurality of users identified by a plurality of user identifiers received by the reception unit is further provided.
The hygiene evaluation device according to any one of claims 1 to 5, wherein the output unit also outputs the result of the statistical processing. A pedestal to which the hygiene evaluation device according to any one of claims 1 to 8 is detachably mounted, and
A light source provided on the gantry and
The photographed image acquisition unit is a frame for photographing by acquiring an image of a hand irradiated with light from the light source to acquire the photographed image. The gantry has a pedestal on which the hygiene evaluation device is mounted and a leg attached to the pedestal.
The shooting stand according to claim 9, wherein the shooting space of the hand formed by the base portion and the leg portion has a size that allows the shooting image acquisition unit to shoot both hands at the same time. The shooting stand according to claim 10, wherein the legs are foldably attached to the base. A hygiene evaluation imaging system comprising the imaging frame according to any one of claims 9 to 11 and the hygiene evaluation device mounted on the frame. It is a hygiene evaluation method that is processed using a captured image acquisition unit, a calculation unit, and an output unit.
The captured image acquisition step of acquiring the captured image of the hand by the captured image acquisition unit, and
A calculation step in which the calculation unit calculates a score according to whether or not a substance is attached to each of a plurality of predetermined parts of the hand using the captured image.
A hygiene evaluation method comprising an output step in which the output unit outputs a score calculated in the calculation step. Computer,
Captured image acquisition unit, which acquires captured images of the hand,
A calculation unit that calculates a score according to whether or not a substance is attached to each of a plurality of predetermined parts of the hand using the photographed image.
A program for functioning as an output unit that outputs a score calculated by the calculation unit.

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