JP7559886B2 - Work management system, work management method, work management program - Google Patents

Description

The present invention relates to a work management system, a work management method, and a work management program.

In recent years, the number of workers who use computers to perform tasks in remote locations away from the workplace has been increasing. Technologies for managing workers who use computers in remote locations are disclosed in Patent Documents 1 and 2. An authentication technology related to the present application is disclosed in Patent Document 3.

JP 2016-118977 A JP 2009-211381 A JP 2008-269556 A

The problem with the technology described above was that it was not possible to properly measure the working time of workers.

Therefore, the object of this invention is to provide a work management system, a work management method, and a work management program that solve the above-mentioned problems.

According to a first aspect of the present invention, the work management device is characterized by comprising an authentication unit that determines whether a person operating a terminal device is a specified person based on biometric information acquired from a biometric information acquisition device, and a measurement unit that measures a work time based on the time it is determined that the person corresponding to the biometric information is a specified person, and increases the interval for determining whether the person is a specified person when biometric authentication using the biometric information is successful at least a specified number of times.

According to a second aspect of the present invention, the work management system is characterized by comprising an authentication unit that determines whether a person operating a terminal device is a specified person based on biometric information acquired from a biometric information acquisition device, and a measurement unit that measures a work time based on the time it is determined that the person corresponding to the biometric information is a specified person, and increases the interval for determining whether the person is a specified person when biometric authentication using the biometric information is successful at least a specified number of times.

According to a third aspect of the present invention, a work management method includes a work management device that determines whether a person operating a terminal device is a specified person based on biometric information acquired from a biometric information acquisition device, measures a work time based on the time during which the work management device determines that the person corresponding to the biometric information is a specified person, and increases the interval for determining whether the person is a specified person when biometric authentication using the biometric information is successful at least a specified number of times.

According to a fourth aspect of the present invention, the program causes the computer of the work management device to function as an authentication means for determining whether a person operating a terminal device is a specified person based on biometric information acquired from a biometric information acquisition device, and a measurement means for measuring a work time based on the time it is determined that the person corresponding to the biometric information is a specified person, and for increasing the interval for determining whether the person is a specified person when biometric authentication using the biometric information is successful at least a specified number of times.

The present invention allows the working time of a worker to be measured appropriately.

FIG. 1 is a schematic diagram of a work management system. 2 is a hardware configuration diagram of a work management terminal and a work management server. 2 is a first diagram showing functional blocks of a work management terminal and a work management server. FIG. FIG. 13 is a diagram showing a processing flow of a work management terminal. 13 is a second diagram showing functional blocks of the work management terminal and the work management server. FIG. FIG. 2 is a diagram illustrating a minimum configuration of a work management device.

Hereinafter, a work management system according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic diagram of a work management system according to the present embodiment.
1, the work management system 100 includes a work management terminal 1 and a work management server 2. The work management terminal 1 and the work management server 2 are connected via a communication network 3. One example of the communication network 3 is the Internet.

The work management terminal 1 is used by the worker. The work management server 2 is managed by the company where the worker works. The work management terminal 1 and the work management server 2 manage the work hours of the worker.

FIG. 2 is a hardware configuration diagram of the work management terminal and the work management server.
As shown in FIG. 2, the work management terminal 1 includes, as an example, the following hardware configurations: a CPU (Central Processing Unit) 101, a ROM (Read Only Memory) 102, a RAM (Random Access Memory) 103, a HDD (Solid State Drive) 104, an interface 105, and a communication module 106.
Similarly, the work management server 2 also includes, as an example, the following hardware components: a CPU 201, a ROM 202, a RAM 203, a HDD 204, an interface 205, and a communication module 206.
The interface 105 (205) is, for example, a liquid crystal touch panel, buttons, etc. The work management terminal 1 and the work management server 2 may further include hardware other than the configuration shown in Fig. 2. The work management terminal 1 and the work management server 2 are computers having the above-mentioned hardware configuration.

FIG. 3 is a first diagram showing functional blocks of the work management terminal and the work management server.
The CPU 101 of the work management terminal 1 executes a terminal program. As a result, the work management terminal 1 is provided with the functions of a control unit 11, a person authentication unit 12, and a work time measurement unit 13. A camera 4, which is an example of a biometric information acquisition device, is connected to the work management terminal 1 via a communication cable. The camera 4 may be built into the work management terminal 1. The camera 4 captures the face of a user performing work using the work management terminal 1 to generate a facial image.
The CPU 201 of the work management server 2 executes a server program. As a result, the work management server 2 is provided with functional units, such as a control unit 21 and a work management unit 22.

The control unit 11 of the work management terminal 1 shown in FIG. 3 controls each functional unit of the work management terminal 1. The person authentication unit 12 determines whether the user operating the work management terminal 1 is a specified user based on a facial image (biometric information) acquired from the camera 4. When the person authentication unit 12 acquires a facial image, it generates feature information based on the facial image and sends an authentication request including the feature information to the work management unit 22 of the work management server 2. If the person authentication unit 12 does not acquire a facial image, it outputs a stop of work time measurement to the work time measurement unit 13.

When the person authentication unit 12 receives authentication permission from the work management unit 22 of the work management server 2, it instructs the work time measurement unit 13 to continue measuring the work time. When the person authentication unit 12 receives authentication denial, it instructs the work time measurement unit 13 to stop measuring the work time. If the person authentication unit 12 determines that the period during which authentication permission cannot be received from the work management unit 22 of the work management server 2 is longer than a predetermined period, the control unit 11 cuts off the communication connection with the work management server 2.

Even if the person authentication unit 12 does not transmit the feature information to the work management server 2, the person authentication unit 12 may acquire feature information of a person's facial image based on the identification information of the work management terminal 1 from the database 20, and compare the feature information with the feature information of the facial image acquired from the camera 4 to determine whether they match. Note that once the person authentication unit 12 receives feature information of a person's facial image based on the identification information of its own terminal, it may temporarily store the feature information in the work management terminal 1, and compare the feature information with the feature information of the facial image acquired from the camera to determine whether they match.

The work time measurement unit 13 measures the work time based on the time when it is determined that the person corresponding to the acquired biometric information such as a facial image is a specified person. The work time measurement unit 13 may start (restart) measuring the work time when it detects either that an input operation has been performed on a keyboard or that the person authentication unit 12 has received authentication permission sent by the work management server 2 based on an authentication request including feature information of the facial image.

The control unit 21 of the work management server 2 controls each functional unit of the work management server 2. The work management unit 22 acquires information on the user's work time from the work management terminal 1 and manages the user's work time. The work management unit 22 compares the feature information included in the authentication request from the person authentication unit 12 of the work management terminal 1 with the feature information recorded in the database 20 to determine whether they match. If matching feature information is recorded in the database 20, the work management unit 22 transmits authentication permission to the object authentication unit 12 of the work management terminal 1. If matching feature information is not recorded in the database 20, the work management unit 22 transmits authentication denial to the object authentication unit 12 of the work management terminal 1. The work management server 2 may be communicatively connected to the database 20. The database 20 holds biometric feature information of the user who uses the work management terminal 1. In this embodiment, the biometric feature information is facial feature information.

FIG. 4 is a diagram showing a processing flow of the work management terminal.
The process flow of the work management system will be explained step by step below.
When the work management terminal 1 is started, it executes a terminal program, and the work management terminal 1 is provided with each of the above-mentioned functional units. The control unit 11 of the work management terminal 1 instructs the work time measurement unit 13 to start measuring the work time. The work time measurement unit 13 starts measuring the work time (step S101). The work time measurement may be started when it is detected that the user has operated the keyboard. The control unit 11 instructs the person authentication unit 12 to start processing. The person authentication unit 12 judges whether a face image has been acquired from the camera 4 (step S102). If the face image has been acquired, the person authentication unit 12 generates feature information based on the face image. The person authentication unit 12 transmits an authentication request including the feature information to the work management server 2 (step S103). If the face image has not been acquired, the person authentication unit 12 outputs a stop of the work time measurement to the work time measurement unit 13. When the work time measurement unit 13 is instructed to stop the work time measurement, it stops measuring the work time (step S104). If the person authentication unit 12 determines that the period during which authentication permission cannot be received from the work management server 2 is longer than a predetermined period, the control unit 11 may cut off the communication connection with the work management server 2 .

It has been described that the work time measurement unit 13 stops measuring the work time when the person authentication unit 12 has not acquired a facial image or when authentication denial is received from the work management server 2. However, this is not limited to the above, and the work time measurement unit 13 may stop measuring the work time when the person authentication unit 12 has not acquired a facial image, or when authentication denial has been received a predetermined number of times consecutively or cumulatively. Furthermore, the above-mentioned facial image may be acquired from a still image or a moving image.

The work management unit 22 of the work management server 2 compares the feature information included in the authentication request with the feature information recorded in the database 20 to determine whether they match. If the matching feature information is recorded in the database 20, the work management unit 22 transmits authentication permission to the work management terminal 1. If the matching feature information is not recorded in the database 20, the work management unit 22 transmits authentication denial to the work management terminal 1. The person authentication unit 12 of the work management terminal 1 can determine whether the user is a specified user based on the authentication permission obtained from the work management server 2 in response to the authentication request. In other words, the person authentication unit 12 of this embodiment determines that the user is a specified user based on the information obtained from the work management server 2. Note that the person authentication unit 12 may not transmit feature information to the work management server 2, but may instead obtain feature information of a person's facial image based on the identification information of the work management terminal 1 from the database 20, and compare it with the feature information about the facial image obtained from the camera 4 to determine whether they match. Note that once the work management terminal 1 receives feature information of a person's facial image based on the identification information of its own terminal, the feature information may be temporarily stored. This allows the work management terminal 1 to eliminate repeated requests for characteristic information.

When the person authentication unit 12 receives authentication permission, the control unit 11 of the work management terminal 1 instructs the work time measurement unit 13 to continue measuring the work time. When the person authentication unit 12 receives authentication denial, the control unit 11 instructs the work time measurement unit 13 to stop measuring the work time. Note that in the above-mentioned process, after measuring the work time based on detection of the user's keyboard operation, it is determined whether the user is a specified user based on feature information identified from the face image. However, the work management terminal 1 may start measuring the work time after determining whether the user is a specified user based on feature information identified from the face image.

The person authentication unit 12 acquires a facial image from the camera 4 at a certain time interval. The person authentication unit 12 sends an authentication request to the work management server 2 each time it acquires a facial image. If the person authentication unit 12 cannot acquire a facial image, it cannot send an authentication request. In this case, the person authentication unit 12 cannot acquire authentication result information indicating whether authentication is permitted or not from the work management server 2. The person authentication unit 12 may authenticate a facial image acquired from the camera 4 at a certain time interval using characteristic information acquired from the database 10 or characteristic information temporarily stored in the work management terminal 1, without sending an authentication request to the work management server 2.

The work time measurement unit 13 determines whether a predetermined time has elapsed since the user stopped keyboard operation (step S105). The work time measurement unit 13 detects the stop of work time measurement when a predetermined time, such as three minutes, has elapsed since the user stopped keyboard operation (step S106). The work time measurement unit 13 determines whether to resume measuring the work time (step S107). The work time measurement unit 13 starts measuring the work time when keyboard operation is resumed and, in addition, the person authentication unit 12 receives authentication permission from the work management server 2 as a result of an authentication request including feature information based on a face image (step S108).

The work time measurement unit 13 may start (resume) the work time measurement when it detects that the keyboard operation has resumed or that the person authentication unit 12 has received authentication permission from the work management server 2 by an authentication request including characteristic information. The work time measurement unit 13 may measure the work time when it detects the keyboard operation or determines that the user of the face image obtained from the camera 4 is the desired user. For example, there are cases where an input operation such as a keyboard is performed without facing the display on which the camera 4 is installed (no face authentication, input operation), and cases where an input operation is not performed even if the face is facing the display on which the camera 4 is installed (face authentication, no input operation). The work time measurement unit 13 may measure the work time even in such cases. However, if an input operation is performed without face authentication or an input operation is performed but face authentication is performed but no input operation is performed, the measurement of the work time may be stopped.

The work time measurement unit 13 counts the work time based on the first instruction to start measuring the work time. This count value is recorded as the accumulated time. When the work time measurement unit 13 receives an instruction from the control unit 11 to stop measuring the work time due to a failure to authenticate based on the facial image feature information, or detects a stop in measuring the work time based on a stop in keyboard operation, the work time measurement unit 13 temporarily stores the count value of the work time up to that point and suspends the count of the work time. In addition, when the work time measurement unit 13 is in a state where the work time count is suspended, if the work time measurement unit 13 receives an instruction from the control unit 11 to start measuring the work time due to authentication permission based on the facial image feature information, or detects the start of measuring the work time based on a resumption of keyboard operation, the work time measurement unit 13 resumes counting the work time. When the work time measurement unit 13 resumes counting the time, it adds the resumed count value to the temporarily stored work time to update the accumulated time.

When the state where the face image cannot be acquired continues for a timeout period such as 10 minutes, the person authentication unit 12 outputs timeout information to the control unit 11. When the state where the keyboard operation cannot be detected continues for a timeout period such as 10 minutes, the work time measurement unit 13 outputs timeout information to the control unit 11. The control unit 11 judges whether the work time measurement process is terminated (step S109). When the control unit 11 detects a logout, shutdown, or stop of a specific work program of the work management terminal 1, or when timeout information is acquired, it judges that the work time measurement process is terminated. In that case, the control unit 11 notifies the work time measurement unit 13 of the end of the process. When the work time measurement unit 13 receives the notification of the end of the process, it transmits information on the work time counted up to that point to the work management server 2 (step S110). When the control unit 11 receives the timeout information, it may stop communication with the work management server 2 after transmitting the information on the work time to the work management server 2.

When the work management server 2 receives the work time information, it records the information in the database 20 in association with the ID of the user who used the work management terminal 1. This allows the work time during which the user used the work management terminal 1 to be counted.

In the above process, the work time measurement unit 13 temporarily stops counting the work time if authentication permission based on the user's face image cannot be obtained or if keyboard operation cannot be detected. Therefore, it is possible to count the work time excluding the time when the user leaves the work management terminal 1 or when the user is in front of the work management terminal 1 but does not operate the keyboard to perform work.

In the above process, the work management terminal 1 and the work management server 2 use a face image as the biometric information to authenticate the user, but other biometric information may also be used to authenticate the user. For example, the work management terminal 1 and the work management server 2 may use an iris image of the eye instead of a face image to perform authentication. Alternatively, if each key on the keyboard is equipped with a fingerprint detection function for the user's finger, the authentication process may be performed using fingerprint information instead of a face image or iris image.

In the above-mentioned process, the person authentication unit 12 may change the interval at which it performs authentication judgment of the user based on biometric information such as a face image. The work time measurement unit 13 may also change the interval at which it judges whether or not work has stopped based on keyboard operation. For example, when the control unit 11 receives a signal from the person authentication unit 12 or the work time measurement unit 13 that work time measurement has stopped, or detects the start (resumption) of work time measurement, it acquires that information.

When the control unit 11 receives a predetermined number of consecutive notifications indicating that the start (resumption) of work time measurement has been detected from both the person authentication unit 12 and the work time measurement unit 13, the control unit 11 increases the judgment interval in each processing unit to a first interval T1 (first judgment period). In other words, when face authentication and work continuation are recognized, the control unit 11 increases the judgment interval in the person authentication unit 12 and the work time measurement unit 13.
By such processing, when both face recognition based on feature information of a face image and continuation of work by input operation on a keyboard, etc. are confirmed, the judgment interval can be increased. Therefore, since the judgment interval is increased, it is possible to reduce the influence of the processing load increased by performing face recognition on work such as input operation by the user.

On the other hand, the control unit 11 counts the number of times that the control unit 11 has received a notification to stop the work time measurement from the person authentication unit 12, and when the control unit 11 has received a notification to stop the work time measurement a predetermined number of times in succession, the control unit 11 instructs the person authentication unit 12 to set the interval for the authentication judgment of the user to a second interval T2 (second judgment period) shorter than the first interval. Specifically, when the control unit 11 has received a notification to stop the work time measurement due to failure to authenticate based on face authentication a predetermined number of times in succession, the control unit 11 instructs the person authentication unit 12 to set the interval for the authentication judgment based on the user's face image to a shorter second interval T2. The control unit 11 counts the number of times that the control unit 11 has received a notification to stop the work time measurement (no input operation of a keyboard, etc.) from the work time measurement unit 13, and when the control unit 11 has received a notification to stop the work time measurement a predetermined number of times in succession, the control unit 11 instructs the work time measurement unit 13 to set the interval for the work stop judgment to a third interval T3 (second judgment period) shorter than the first interval. Specifically, when a notification to stop the measurement of the work time due to the absence of input operations on the keyboard or the like is received a predetermined number of times in succession, the control unit 11 instructs the work time measurement unit 13 to shorten the interval for determining whether or not to stop the measurement of the work time to the third interval T3. Note that when a notification to stop the measurement of the work time due to the absence of input operations on the keyboard or the like is received a predetermined number of times in succession, the control unit 11 may instruct not only the interval for determining whether or not to stop the measurement of the work time in the work time measurement unit 13, but also the interval for determining whether or not to stop the measurement of the work time based on the user's face image is set to the third interval T3.

When the control unit 11 receives a predetermined number of consecutive notifications to stop the work time measurement from both the person authentication unit 12 and the work time measurement unit 13, the control unit 11 instructs the person authentication unit 12 to set the interval for the authentication judgment of the user to a fourth interval T4 that is shorter than the second interval and the third interval. Furthermore, when the control unit 11 receives a predetermined number of consecutive notifications to stop the work time measurement from both the person authentication unit 12 and the work time measurement unit 13, the control unit 11 instructs the work time measurement unit 13 to set the interval for the work stop judgment to a fifth interval that is shorter than the second interval and the third interval. According to the above-mentioned process, the person authentication unit 12 sets the interval for the authentication judgment, or the work time measurement unit 13 sets the interval for the work stop judgment, based on the instruction of the control unit 11.

That is, the process of changing the interval for determining whether or not a user is to be authenticated based on biometric information and the process of changing the interval for determining whether or not a user is to stop working based on keyboard operation can be distinguished as follows.
(1) Facial image authentication is permitted, but keyboard operation is permitted. (2) Facial image authentication is not permitted (authentication not permitted), but keyboard operation is permitted. (3) Facial image authentication is permitted, but keyboard operation is not permitted. (4) Facial image authentication is not permitted (authentication not permitted), but keyboard operation is not permitted.

In the above case of (1), the control unit 11 sets the determination interval in the person authentication unit 12 and the task time measurement unit 13 to the first interval T1.
In the above case of (2), the control unit 11 sets the judgment interval in the person authentication unit 12 to the second interval T2 based on the fact that the number of times the control unit 11 has received a notification of the stop of the measurement of the working time (authentication failure) from the person authentication unit 12 has exceeded N2 consecutive times. In the case of (2), since the input operation has been performed but the user may not be performing work, the count of the working time may be stopped, and the user may be logged out or the communication connection may be cut off.

In the above case (3), the control unit 11 sets the judgment interval in the work time measurement unit 13 to the third interval T3 based on the fact that the number of times the control unit 11 has received a notification of the stop of the work time measurement (non-detection of input operation) from the work time measurement unit 13 has exceeded N3 consecutive times. In the case of (3), the control unit 11 may stop counting the work time because the face is facing the screen but the user may not be working, and may log out the user or cut off the communication connection. In the above case (3), the control unit 11 may set the authentication judgment interval based on the user's face image to the third interval T3 for the person authentication unit 12 based on the stop of the work time measurement from the work time measurement unit 13 N3 or more consecutive times. At this time, the control unit 11 may set the authentication judgment interval based on the user's face image (third interval T3) to be shorter than the authentication judgment interval set in the person authentication unit 12 in the case of (2).

In the above case of (4), the control unit 11 sets the judgment interval in the person authentication unit 12 and the judgment interval in the work time measurement unit 13 to a fourth interval T4 based on the fact that the number of times a notification to stop the work time measurement has been received from the person authentication unit 12 and the number of times a notification to stop the work time measurement has been received each exceeding N4. Note that the control unit 11 may immediately stop the measurement of the work time instead of shortening the judgment interval in the person authentication unit 12 and the judgment interval in the work time measurement unit 13 based on the fact that the number of times a notification to stop the work time measurement has been received from the person authentication unit 12 and the number of times a notification to stop the work time measurement has been received each exceeding N4.
As long as the above intervals T1 to T4 are T1>T2>T4 and T1>T3>T4, the magnitude of T2 and T3 does not matter. By making the first interval T1 the longest, the judgment interval in the person authentication unit 12 and the task time measurement unit 13 is extended, and the processing load on the task management terminal 1 due to the increased processing load can be reduced. In addition, the magnitude of the numbers N2, N3, and N4 indicating the number of times notifications have been received may be N2>N3>N4. Or, N3>N2>N4.

The control unit 11 may obtain an elapsed time indicating that a state in which authentication has not been permitted has continued from the person authentication unit 12, or an elapsed time indicating that a state in which no keyboard operation has been performed has continued from the operation time measurement unit 13, and determine the judgment interval for each processing unit based on the elapsed time and a threshold value.

Other situations in which the count of the work time is stopped and the user is logged out or the communication connection is cut off may be situations in which a third judgment period (the time during which the work time measurement stop notification is received N2', N3', N4', etc.) has elapsed, such as when the number of times the work time measurement stop notification is received exceeds N2', which is more than N2 times in case (2), when the number of times the work time measurement stop notification is received exceeds N3', which is more than N3 times in case (3), or when the number of times the work time measurement stop notification is received exceeds N4', which is more than N4 times in case (4) (note that N4'<N2', N3'). The control unit 11 may log out the user or cut off the communication connection when the cumulative number of times the work time measurement stop notification is received exceeds a predetermined number, instead of the number of times the work time measurement stop notification is received.

Other circumstances in which the counting of the working time is stopped and the user is logged out or the communication connection is cut off may be circumstances in which the third determination period (logout time of L2, L3, L4, etc.) has elapsed, such as when the logout time has elapsed L2 hours in case (2), when the logout time has elapsed L3 hours in case (3), or when the logout time has elapsed L4 hours in case (4) (L4<L2, L3).

In this way, when facial authentication is not possible or when the user is allowed to stop working, the timing for determining whether to stop measuring the work time can be increased, allowing for more accurate measurement of the work time. Furthermore, when facial authentication is possible, the work management terminal 1 can set the interval between authentication requests to the work management server 2 to be longer, thereby reducing the load on the communication network 3.

The person authentication unit 12 may perform biometric authentication of the user using a part of the feature information obtained from the user's biometric information. For example, if the user is wearing a mask, even if the user whose feature information is registered in the database 20 is working, the work management server 2 cannot determine whether the feature information of the entire face matches the feature information recorded in the database 20. Therefore, the person authentication unit 12 may send an authentication request including feature information of the entire face image or partial feature information near the eyes to the work management server 2. In this case, if the feature information of the entire face image is included in the authentication request, the work management server 2 performs authentication processing using the feature information of the entire face image. Also, if the partial feature information of the face image is included in the authentication request, the work management server 2 performs authentication using the partial feature information. The timing of sending the authentication request including the feature information of the entire face image or the timing of sending the authentication request including the partial feature information may be determined by the person authentication unit 12 of the work management terminal 1 or the work management unit of the work management server 2.

More specifically, the person authentication unit 12 transmits an authentication request based on the feature information of the entire face to the work management server 2 for the first authentication, but may transmit an authentication request based on partial feature information of the face image that is possible even with a mask to the work management server 2 for subsequent continuous authentication. To be more specific, when logging in to start work, etc., it is necessary to remove the mask and perform authentication based on the feature information of the entire face, but when continuing authentication judgment periodically thereafter, authentication may be performed based on partial features of the face image. As a result, when logging in for the first time, the mask is removed to perform authentication of the feature information of the entire face, but thereafter, it is no longer necessary to remove the mask for each authentication, improving user convenience. Note that after logging out once, when resuming work and logging in, the mask must be removed and authentication based on the feature information of the entire face must be performed.

This process is one aspect of a process that uses all of the biometric information at a specific time during the time the work is performed to determine whether the person corresponding to the biometric information is a specific person, and uses part of the biometric information at other times during the time the work is performed to determine whether the person corresponding to the biometric information is a specific person.

FIG. 5 is a second diagram showing the functional blocks of the work management terminal and the work management server.
In the above process, the work time is measured by the work management terminal 1. However, the work time may be measured by the work management server 2. In this case, as shown in FIG. 5, the work management terminal 1 includes a person authentication unit 12 and an operation detection unit 14. The operation detection unit 14 detects keyboard operation by the user. When the operation detection unit 14 detects keyboard operation, it transmits information indicating the start of work time measurement to the work management server 2. The person authentication unit 12 also transmits an authentication request to the work management server 2 in the same manner as described above. The work management server 2 then performs the work time measurement process in the work management terminal 1 as described above with reference to FIGS. 3 and 4. However, if the purpose is to reduce the amount of communication in the communication network 3, it is more preferable that the work time measurement process be performed by the work management terminal 1.

FIG. 6 is a diagram showing the minimum configuration of the work management device.
The above-mentioned work management terminal 1 and work management server 2 are one aspect of a work management device 30. The work management device 30 may include at least a work time measurement unit 300. The work time measurement unit 300 measures a work time based on the time when it is determined that a person corresponding to the acquired biometric information is a predetermined person.

According to the above-mentioned work management system, face authentication is performed based on feature information of a face image based on an instruction to start measuring the work time by inputting an operation such as a keyboard, and the accumulated work time is counted when both or at least one of the face authentication success and keyboard operation continues. Also, when the face authentication is unsuccessful or there is no keyboard operation, the counting of the accumulated work time is stopped. The work management system changes the interval of authentication determination by the person authentication unit 12 and the interval of work stop determination by the work time measurement unit 13 according to the states (1) to (4), such as (1) a state in which authentication is permitted by a face image and there is keyboard operation, (2) a state in which authentication is not permitted by a face image (authentication not permitted) and there is keyboard operation, (3) a state in which authentication is permitted by a face image and there is no keyboard operation, and (4) a state in which authentication is not permitted by a face image (authentication not permitted) and there is no keyboard operation.
In the work management system, if the person authentication unit 12 fails to authenticate a predetermined number of times, if the work time measurement unit 13 detects that work time measurement has stopped a predetermined number of times, or if the logout time continues for a predetermined period of time, the work management terminal 1 will cut off the communication connection with the work management server 2.

Each of the above-mentioned devices has a computer system inside. The programs for causing each device to perform each of the above-mentioned processes are stored in computer-readable recording media of the devices, and the above processes are performed by the computer of each device reading and executing these programs. Here, computer-readable recording media refers to magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, semiconductor memories, etc. Also, this computer program may be distributed to a computer via a communication line, and the computer that receives this distribution may execute the program.

The above program may also be for realizing some of the functions of each of the processing units described above. Furthermore, it may be a so-called differential file (differential program) that can realize the functions described above in combination with a program already recorded in the computer system.

1: Work management terminal 2: Work management server 3: Communication network 101, 201: CPU
102,202...ROM
103,203...RAM
104,204...HDD
105, 205: Interface 106, 206: Communication module 11, 21: Control unit 12: Person authentication unit 13, 23, 300: Work time measurement unit 14: Operation detection unit 22: Work management unit 30: Work management device

Claims (12)

An acquisition unit that acquires a face image of a person operating a terminal device;
an authentication unit that determines at predetermined intervals whether the person operating the terminal device is a predetermined person based on the face image acquired by the acquisition unit;
a measurement unit that starts measuring a task time when it is determined that the person corresponding to the face image is a predetermined person;
a control unit that counts the number of times that the person operating the terminal device can be determined to be a predetermined person and the number of times that the person operating the terminal device cannot be determined to be a predetermined person;
A work management system comprising: An acquisition unit that acquires a face image of a person operating a terminal device;
an authentication unit that determines at predetermined intervals whether the person operating the terminal device is a predetermined person based on the face image acquired by the acquisition unit;
a measurement unit that starts measuring a task time when it is determined that the person corresponding to the face image is a predetermined person;
a control unit that counts a time during which it is possible to determine that the person operating the terminal device is a predetermined person and a time during which it is not possible to determine that the person operating the terminal device is a predetermined person;
A work management system comprising: An acquisition unit that acquires a face image of a person operating a terminal device;
an authentication unit that determines at predetermined intervals whether the person operating the terminal device is a predetermined person based on the face image acquired by the acquisition unit;
a measurement unit that starts measuring a task time when it is determined that the person corresponding to the face image is a predetermined person;
Equipped with
The measurement unit ends measurement of the working time when a time during which it is not possible to determine that the person corresponding to the face image is a predetermined person continues for a predetermined time.
A work management system comprising : An acquisition unit that acquires a face image of a person operating a terminal device;
an authentication unit that determines at predetermined intervals whether the person operating the terminal device is a predetermined person based on the face image acquired by the acquisition unit;
a measurement unit that starts measuring a task time when it is determined that the person corresponding to the face image is a predetermined person;
Equipped with
The authentication unit of the work management system determines whether the person operating the terminal device is a specified person based on the facial image acquired by the acquisition unit and the facial image stored in the terminal device . The computer
Acquire a facial image of a person operating the terminal device;
determining at a predetermined interval whether the person operating the terminal device is a predetermined person based on the acquired face image;
When it is determined that the person corresponding to the face image is a predetermined person , measurement of the work time is started;
Counting the number of times that the person operating the terminal device is determined to be a specific person and the number of times that the person operating the terminal device is not determined to be a specific person.
A work management method including: The computer
Acquire a facial image of a person operating the terminal device;
determining at a predetermined interval whether the person operating the terminal device is a predetermined person based on the acquired face image;
When it is determined that the person corresponding to the face image is a predetermined person, measurement of the work time is started;
A time during which the person operating the terminal device can be determined to be a predetermined person and a time during which the person operating the terminal device cannot be determined to be a predetermined person are counted.
A work management method including: The computer
Acquire a facial image of a person operating the terminal device;
determining at a predetermined interval whether the person operating the terminal device is a predetermined person based on the acquired face image;
When it is determined that the person corresponding to the face image is a predetermined person, measurement of the work time is started;
When the time during which it is not possible to determine that the person corresponding to the face image is a predetermined person continues for a predetermined period of time, the measurement of the working time is terminated.
A work management method including: The computer
Acquire a facial image of a person operating the terminal device;
determining at a predetermined interval whether the person operating the terminal device is a predetermined person based on the acquired face image;
When it is determined that the person corresponding to the face image is a predetermined person, measurement of the work time is started;
The terminal device determines whether the person operating the terminal device is a predetermined person based on the acquired face image and the face image stored in the terminal device.
A work management method including: Acquiring a face image of a person operating a terminal device;
determining at a predetermined interval whether the person operating the terminal device is a predetermined person based on the acquired face image;
starting to measure a task time when it is determined that the person corresponding to the face image is a predetermined person;
Counting the number of times that it is possible to determine that the person operating the terminal device is a predetermined person and the number of times that it is not possible to determine that the person operating the terminal device is a predetermined person;
A task management program for causing a computer to execute the above. Acquiring a face image of a person operating a terminal device;
determining at a predetermined interval whether the person operating the terminal device is a predetermined person based on the acquired face image;
starting to measure a task time when it is determined that the person corresponding to the face image is a predetermined person;
Counting a time during which it is possible to determine that the person operating the terminal device is a predetermined person and a time during which it is possible to determine that the person operating the terminal device is a predetermined person;
A task management program for causing a computer to execute the above. Acquiring a face image of a person operating a terminal device;
determining at a predetermined interval whether the person operating the terminal device is a predetermined person based on the acquired face image;
starting to measure a task time when it is determined that the person corresponding to the face image is a predetermined person;
When the time during which it is not possible to determine that the person corresponding to the face image is a predetermined person continues for a predetermined period of time, measurement of the working time is ended.
A task management program for causing a computer to execute the above. Acquiring a face image of a person operating a terminal device;
determining at a predetermined interval whether the person operating the terminal device is a predetermined person based on the acquired face image;
starting to measure a task time when it is determined that the person corresponding to the face image is a predetermined person;
determining, in the terminal device, whether the person operating the terminal device is a predetermined person based on the acquired face image and a face image stored in the terminal device;
A task management program for causing a computer to execute the above.

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