JP2024042867A - Communication terminal and communication terminal program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system which can control the operation of a personal mobile communication terminal, such as a smartphone, owned by a driver.

SOLUTION: An operation management system includes a first communication terminal, a second communication terminal, and a VPN server. The first communication terminal is a mobile terminal or an in-vehicle communication unit having a speed or movement detection means, and transmits information on the speed or movement to the VPN server using arbitrary communication means. The second communication terminal is a mobile communication terminal and communicates with the VPN server through VPN connection. The VPN server monitors the speed/movement information and traffic due to the VPN connection, and regulates or cuts off the VPN connection when the speed/movement information and the traffic due to the VPN connection satisfy a predetermined condition.

SELECTED DRAWING: Figure 2

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a communication terminal and a communication terminal program that help prevent so-called "driving while driving", which is the act of driving a car or the like while operating a smartphone or the like.

In recent years, so-called "while driving" has become a major social problem. A car traveling at 60 km/h travels about 17 meters per second, and about 33 meters in 2 seconds.The amount of time a driver feels threatened by looking at an image varies depending on the driving environment, but most drivers feel threatened by looking at a screen for more than 2 seconds. Reports have been made from various places. Under these circumstances, severe penalties for ``driving while driving'' have been introduced, but there are still no signs that the problem is going away. Furthermore, the problem of ``driving while driving'' is not limited to only drivers. In other words, business owners who employ employees who drive automobiles, etc. for work, even if they are drivers or sales personnel for transportation or delivery services, are liable as employers, and are liable if their employees cause damage to a third party. If you do, you will be liable for compensation.
Patent Document 1 discloses that when a driving monitoring function detects that the travel speed exceeds a predetermined threshold, a usage restriction is imposed on the operation of an application such as a smartphone operated by an employee, and the usage restriction is activated. A system has been disclosed that allows managers to understand the results of their efforts.
In addition, employees may be lent a company smartphone or smart watch communication device, and when it is detected that the movement speed of this communication device exceeds a predetermined threshold, information to that effect is transmitted to the individual's smartphone. , it is also envisioned that the communication amount of the smartphone will be limited. The applicant has actually invented and filed an application for this aspect (unpublished at this time).

JP2021-89765A

Whether it is a mode that restricts the operation of communication terminals such as smartphones, or a mode that limits the amount of communication of communication terminals such as smartphones, if the fact that you are driving a car can be correctly recognized and detected, It can be said that it functions effectively as a means to prevent people from driving while driving. However, in reality, sometimes things don't work out. For example, when a driver commutes to work by train, the driving monitoring function activates when it detects that the speed of the train exceeds a predetermined threshold, so the driver is not actually driving the car. Even though there are no restrictions, operation usage restrictions and communication volume restrictions are activated, making it impossible to use smartphones, etc. It would be premature to think that it is enough to disable the driving monitoring function when riding a train. A driver may forget to re-enable a disabled function, and some drivers may not be sure to enable it. A system in which the driver cannot disable the system at will can be said to be a robust management system, and for the driver as well, being forced to perform operations such as disabling and enabling the system is nothing short of cumbersome. In the first place, it is desirable for a system to eliminate as many cumbersome setting operations as possible.
In view of this situation, an object of the present invention is to provide a communication terminal and a communication terminal program that are easy to use and do not cause the driver to feel bothered while effectively preventing "while driving". do.

The present invention is a first communication terminal used in a traffic management system that monitors speed or movement and limits the use of applications, and includes a speed etc. detection means for detecting original data regarding speed or movement, and a movement mode. a movement mode determining means that detects and determines; and an application usage restriction that restricts the use of an application installed in the first communication terminal or an application installed in a second communication terminal associated with the first communication terminal. In principle, the application usage restriction means is enabled when the original data regarding the detected speed or movement satisfies a predetermined condition. The communication terminal is characterized in that the application usage restriction means is not activated when the movement mode determination means determines that the specified state is present even when the above-mentioned condition is satisfied. Solved the problem.
Further, the present invention is used in a traffic management system that monitors speed or movement and restricts the use of an application, and includes a speed detection means for detecting original data regarding speed or movement, and a predetermined physical quantity. A step of detecting original data regarding speed or movement, a step of measuring a predetermined physical quantity, and determining a movement mode based on the measured physical quantity in a computer of a first communication terminal having a physical quantity measuring means to be measured. and restricting the use of an application installed in the first communication terminal or a second communication terminal associated with the first communication terminal, the communication terminal program comprising: , when the original data regarding the detected speed or movement satisfies a predetermined condition, an application installed in the first communication terminal or a second communication terminal associated with the first communication terminal is installed. As a general rule, usage of the app is restricted, but even if the detected speed or original data regarding movement satisfies predetermined conditions, if the determined movement mode is in a specific state, the usage restriction will be applied. This is a communication terminal program that is characterized in that no error occurs, and this configuration solves the above-mentioned problems.

This makes it possible to appropriately prevent distracted driving using a communication device that is easy to use and does not cause inconvenience to the driver.

Functional block diagram of a communication terminal according to the first embodiment of the present invention Flow diagram showing the concept of movement mode determination processing in the first embodiment Graph showing temporal changes in acceleration Graph showing temporal changes in index A1 related to acceleration Flow diagram showing the concept of movement mode determination processing (another example) in the first embodiment Graph showing temporal changes in acceleration and gravitational acceleration Graph showing temporal changes in index A2 related to acceleration FIG. 1 is a system configuration diagram of a traffic management system according to a second embodiment of the present invention. FIG. 13 is a functional block diagram showing an example of a company communication terminal in the operation management system according to the second embodiment; Functional block diagram showing an example of a personal mobile communication terminal in the traffic management system according to the second embodiment A flow diagram showing the operational concept of the traffic management system according to the second embodiment

First Embodiment
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a functional block diagram of a communication terminal according to the first embodiment. As shown in FIG. 1, a communication terminal 1 (first communication terminal) includes a CPU 11, a memory 12, a display 14 with a touch panel 13, a communication unit 15, a speaker 16, a GPS module 17, an acceleration sensor 18, and an angular velocity sensor 19. The memory 12 stores an operating system 121, various application programs 122, data, and the like. In this embodiment, the memory 12 particularly stores an operation restriction application program 123. The CPU 11 reads out the operating system 121, various application programs 122, and operation restriction application program 123 from the memory 12 and executes them. The display 14 with the touch panel 13 displays a screen in response to the execution of the various application programs 122, the operation restriction application program 123, and the like, and accepts operation input by a user. The GPS module 17 receives signals from satellites to identify the position (latitude and longitude) of the communication terminal 1. The acceleration sensor 18 and the angular velocity sensor 19 detect the acceleration and angular velocity applied to the communication terminal 1, respectively. The speed calculation unit 124 detects the moving speed of a vehicle or the like by obtaining the detection signals from the GPS module 17, the acceleration sensor 18, and the angular velocity sensor 19. Alternatively, the automobile may detect the speed, and the communication terminal 1 may receive the information. This mode is also included in the mode of the speed or movement detection means of the present invention. In addition, the communication terminal 1 may be provided with functions such as a compass (geomagnetic sensor), a LiDAR scanner, an air pressure sensor, an altitude sensor, an infrared camera, and an illuminance sensor (not shown), and may be configured to convert the specifications obtained from these functions into a speed and detect it.

The operation restriction application program 123 is designed to cooperate with the speed calculation section 124 and the movement mode determination section 125. For example, the speed calculation unit 124 always calculates the speed using the GPS module 17 in the background. The movement mode determining unit 125 uses the acceleration sensor 18 and the angular velocity sensor 19 to determine whether the vehicle is in a specific state, which will be described later. In addition, a geomagnetic sensor (not shown), LiDAR scanner (not shown), barometric pressure sensor (not shown), altitude sensor (not shown), infrared camera (not shown), and illuminance sensor (not shown) are used to calculate speed and identify It may be configured to perform state determination.

Specifically, when the calculated speed exceeds a predetermined threshold, for example, 30 km/h or more, it is determined that there is a high possibility that the person is driving a car. By setting the threshold to, for example, 30 km/h, it is possible to effectively recognize whether or not the person is driving (or riding) a car, excluding situations where the person is riding a bicycle such as a city bicycle (mamachari), mountain bike, or cross bike. In the case of a road bike, there may be cases where the speed exceeds 30 km/h, but this is a special case and will not be taken into consideration here.
However, even if it is not the special case described above, there is a situation that is not traveling by car and can occur normally. That is, when traveling by train. The speed of a train is normally more than 30 km/h. In this situation, if it is determined that there is a high possibility that the person is driving a car and the use of the smartphone is restricted, no one will be motivated to introduce (install) an operation restriction application. Therefore, the operation restriction application program 123 is configured to determine whether the person is driving (or riding) a car or in a specific state of riding a train, taking into consideration not only the output result of the speed calculation unit 124 but also the output result of the movement mode determination unit 125.

(About specific state determination processing)
FIG. 2 is a flowchart illustrating the concept of movement mode determination processing in the first embodiment, and more specifically, processing for activating an application usage restriction means, in other words, processing for determining a specific state. It is a flow diagram for explaining. When the communication terminal 1 is powered on, it is normally operable, and as shown by the loop symbol in the flowchart of FIG. The illustrated process will be repeated unless otherwise specified. That is, from the operable state, in step S101, it is determined whether the speed calculated by the speed calculation unit 124 exceeds a predetermined threshold value Vmax. If it is determined that the result has not exceeded the limit, the operable state continues, as shown in step S102, and the process is repeated. If it is determined that the result exceeds the value, in step S103, a continuous value as a set of instantaneous values of the acceleration of the communication terminal 1 is acquired over one second by the G sensor (for example, the acceleration sensor 18). .

In step S104, Fourier transform and inverse Fourier transform are performed as necessary to remove noise components. This is for the purpose of removing electrical noise, but also for the purpose of eliminating the effects of camera shake. However, this is not necessarily a necessary process, and since the second threshold Amax1 is prepared in the judgment process in the following step S106, this process may be omitted. It should be understood as a process provided in the embodiment.
In step S105, the maximum and minimum values of the vector magnitude of each of the instantaneous acceleration values acquired for one second are extracted, and the difference therebetween, ΔA, is derived and monitored as A1 to be used for judgment.
In step S106, if A1 is greater than the first threshold Amin1 and less than the second threshold Amax1, it is determined that the vehicle is being driven (or in a vehicle), and in step S107, most of the operations of the apps on the communication terminal 1 are restricted. Specifically, the icons of the apps whose operations are restricted are not displayed on the smartphone screen, and only some of the apps whose operations are permitted are displayed on the screen. Note that the types and number of apps that are not displayed, i.e., apps whose operations are restricted, are configured to be appropriately set by the driver or administrator in a function setting mode of the app usage restriction app (app usage restriction means).

On the other hand, in step S106, if A1 is less than or equal to the first threshold value Amin1 or greater than or equal to the second threshold value Amax1, it is determined that the specific state is present, and the speed calculation unit 124 is determined in step S101. Even though it is determined that the calculated speed exceeds the predetermined threshold Vmax, the process of disabling the application of the communication terminal 1 is not executed. As a result, as shown in step S102, the operable state continues, resulting in repeated processing.

This mechanism of action will be explained using a graph. FIG. 3 is a graph showing changes in instantaneous acceleration values sampled per second, with the vertical axis showing acceleration and the horizontal axis showing time (however, the numbers shown are the number of samplings). ). Changes in instantaneous acceleration values while moving or stopping on a train are plotted as solid lines, and changes in instantaneous acceleration values while moving on a car are plotted as dotted lines. Changes in the instantaneous acceleration values are plotted as dashed lines. As described in the explanation regarding step S105 in the specific state determination process, for the instantaneous acceleration values sampled in one second, the maximum and minimum values of the vector magnitude of each value are extracted, and the difference ΔA is extracted. is derived and set as index A1.
FIG. 4 explains A1 set in this way. In other words, FIG. 4 is a graph showing temporal changes in the index A1 obtained every second for a little less than one minute regarding acceleration, and the vertical axis represents A1, that is, the maximum and minimum values of the instantaneous acceleration values. The magnitude of ΔA (m/s ² ) which is the difference between is shown, and the horizontal axis shows time (seconds). Changes in A1 while traveling by train or when stopped are plotted as solid lines, changes in A1 while traveling in a car are plotted as dotted lines, and changes in A1 when shaking the communication terminal 1 with your hand are plotted as solid lines. Plotted with a dashed line. Here, although the magnitude of ΔA may vary depending on the measurement system, this does not pose much of a problem when determining a specific state.
That is, as clearly understood from FIG. 4, there is a sufficiently significant difference in the value of A1 between the case of a car and the case of a train (or when stopped). It goes without saying that there is a difference between a car and a hand wave. From this, the first threshold value Amin1 and the second threshold value Amax1, which are threshold values for distinguishing the three modes, can be easily set.
According to the two thresholds set in this way, when A1 is less than or equal to the first threshold Amin1, it is determined that the situation is on a train, and when A1 is greater than or equal to the second threshold Amax1, the operation It is understood that it is determined that a situation has occurred in which the person using the smartphone suddenly moves the smartphone. In these situations, even if it is determined that the calculated speed exceeds the predetermined threshold value Vmax, it is determined that the vehicle is in a specific state where the driver is not driving (or riding). , to prevent unnecessary application restriction functions from being activated.
By the way, the determination that the second threshold value Amax1 is greater than or equal to the second threshold Amax1 is, in short, prepared for the purpose of removing noise caused by camera shake countermeasures. Therefore, if sufficient noise can be removed by the Fourier transform and inverse Fourier transform processing described earlier, the threshold value can be set to only Amin1, and it is possible to distinguish whether the user is on a train or driving (or in a car). It may be configured so that only the following information is determined.
In addition, trains sometimes decelerate suddenly, whether in an emergency or not, and some drivers are accustomed to slow acceleration and deceleration when driving cars. In step S107 of FIG. 2, it is determined that the specific state is present only once in one second, but for example, the determination result in step S107 is accumulated for 10 seconds (10 times). Then, when 80% of the values are less than Amin1, it may be determined that the user is on a train. The idea of making it difficult for people to judge that you are on a train is based on the idea of having a high safety factor. In this modification, if the determination result in the final determination is yes, it means that the state is in a specific state.

(Another example of specific state determination processing)
FIG. 5 is another example of the operation flow of the communication terminal according to the first embodiment. Here, the processing of the movement mode determining section is different from that in FIG. 2 . When the communication terminal 1 is powered on, it is normally operable, and as shown by the loop symbol in the flowchart of FIG. The illustrated process will be repeated unless otherwise specified. That is, from the operable state, in step S201, it is determined whether the speed calculated by the speed calculation unit 124 exceeds a predetermined threshold value Vmax. If it is determined that the result has not exceeded the limit, the operable state continues, as shown in step S202, and the process is repeated. If it is determined that the result exceeds the value, in step S203, a continuous value as a set of instantaneous values of the acceleration of the communication terminal 1 is acquired over one second by the G sensor (for example, the acceleration sensor 18). .

In step S204, Fourier transform and inverse Fourier transform processing are performed as necessary to remove noise components. This is to remove electrical noise, but also serves to eliminate the effects of camera shake. However, this is not necessarily a necessary process, and may be omitted since the second threshold value Amax2 is prepared in the subsequent determination process of step S206. Please understand this as a process provided in the embodiment.
In step S205, gravitational acceleration g (9.8 m/s ² ) is subtracted from the vector size of each of the acquired 1-second instantaneous acceleration values, and the largest value among these is used for determination. Monitor as A2.
In step S206, if A2 is larger than the first threshold value Amin2 and smaller than the second threshold value Amax2, it is determined that the person is driving (or riding) a car, and in step S207, the operation of the application on the communication terminal 1 is performed. most of them are restricted. Specifically, the icons of apps whose operations are restricted are not displayed on the smartphone screen, so that only some of the apps whose operations are permitted are displayed on the screen. The types and number of apps that are not displayed, that is, the operations of which are restricted, are configured so that the driver or administrator can set them as appropriate in the function setting mode of the app usage restriction app (app usage restriction means). ing.

On the other hand, in step S206, if A2 is equal to or less than the first threshold Amin2 or equal to or more than the second threshold Amax2, it is determined that the specific state exists, and the process of disabling the app of the communication terminal 1 is not executed, even though it is determined in step S201 that the speed calculated by the speed calculation unit 124 has exceeded the predetermined threshold Vmax. As a result, as shown in step S202, the operable state continues, and the process is repeated.

This mechanism of action will be explained using a graph. Figure 6 is a graph showing the change in the instantaneous acceleration value sampled in one second, with the vertical axis showing acceleration and the horizontal axis showing time (note that the numbers shown are the number of samplings). The change in the instantaneous acceleration value when moving or stopped by train is plotted with a solid line, the change in the instantaneous acceleration value when moving by car is plotted with a dotted line, and the change in the instantaneous acceleration value when shaking the communication terminal 1 by hand is plotted with a dashed line. Furthermore, the gravitational acceleration g (9.8 m/ ^s2 ) is also plotted with a solid line. As described above, regarding step S205 in the specific state determination process, for the instantaneous acceleration values sampled in one second, the gravitational acceleration g (9.8 m/ ^s2 ) is subtracted from the magnitude of the vector of each value, and the largest value among them is set as the index A2.
The A2 thus set is explained in Fig. 7. That is, Fig. 7 is a graph showing the temporal change of the index A2 acquired every second for just under one minute, with the vertical axis showing A2, i.e., the largest value (m/ ^s2 ) obtained by subtracting the gravitational acceleration g (9.8 m/ ^s2 ) from the instantaneous acceleration value, and the horizontal axis showing time (seconds). The change of A2 during movement or when stopped by train is plotted with a solid line, the change of A2 during movement by car is plotted with a dotted line, and the change of A2 when the communication terminal 1 is waved by hand is plotted with a dashed line. Here, the magnitude of A2 may differ depending on the measurement system, but this does not pose a significant problem in determining the specific state.
That is, as can be clearly seen from Fig. 7, there is a significant difference in the value of A2 between the case of a car and the case of a train (or when stopped). Needless to say, there is a difference between the case of a car and the case of shaking with a hand. From this, the first threshold value Amin2 and the second threshold value Amax2, which are threshold values for distinguishing between the three cases, can be easily set.
It can be understood that, with the two thresholds thus set, when A2 is equal to or less than the first threshold Amin2, it should be determined that the user is riding a train, and when A2 is equal to or more than the second threshold Amax2, it should be determined that the user has suddenly moved the smartphone. In these situations, even if it is determined that the calculated speed exceeds the predetermined threshold Vmax, it is determined that the user is not in a specific state while driving (or riding) a car, so that unnecessary app restriction functions are not activated.
In short, the determination that the second threshold value Amax2 is equal to or greater than the threshold value Amax2 is provided to remove noise caused by camera shake. Therefore, if the noise can be sufficiently removed by the Fourier transform and inverse Fourier transform processes described above, the threshold value may be set to Amin2 only, and the system may be configured to determine only whether the user is on a train or driving (or in) a car.
In addition, even in a train, sudden deceleration may occur, whether in an emergency or not, and there are also drivers who are used to driving a car with slow acceleration and deceleration. In step S107 of FIG. 2, the specific state is determined by a single judgment in one second, but for example, the judgment results in step S107 may be accumulated for 10 seconds (10 times), and if 80% of them are below Amin2, it may be finally determined that the driver is riding on a train. The reason why it is difficult to determine that the driver is riding on a train is based on the idea of taking a high safety factor. In this modified example, if the judgment result in the final judgment is yes, the driver is in the specific state.

(Yet another example of specific state determination processing)
Although the processes in FIGS. 2 and 5 have different calculations, they have in common that they use an index related to acceleration, but it is also possible to use an index other than acceleration to determine that a specific state is present. For example, a geomagnetic sensor (not shown) mounted on the communication terminal 1 is used. When a train accelerates, if it is an electric vehicle or a controller rather than an accompanying vehicle, large magnetic noise is generated by the operation of the motor and inverter. The accompanying vehicle uses air brakes for braking, but the electric vehicle uses regenerative braking to compensate for this, which creates a large amount of magnetic noise throughout the vehicle. In addition, when a train is coasting at a constant speed, the magnetic noise caused by the train becomes smaller, but magnetic noise still exists on the track where the train runs due to the influence of overhead wires, tracks, etc. However, it is larger than the surrounding environment of the car.
This geomagnetic noise is sensed by a smartphone and, through the necessary statistical processing, it is determined that it is in a specific state. Although not shown, a specific state is defined as a case in which after step S101 in FIG. 2, values acquired by a geomagnetic sensor (not shown) exceed a predetermined threshold after excluding those that can be considered as noise. Other contents such as disabling the operation, continuing the operable state, and repeating the process are the same as the flows shown in FIGS. 2 and 5.

<Second embodiment>
As mentioned above, when the present inventor detects that the moving speed of a communication terminal exceeds a predetermined threshold, the inventor transmits information to that effect to an individual's smartphone and limits the communication amount of the smartphone. Inventing a system. A second embodiment, which is an embodiment in which the present invention is applied to the system, will be described based on the drawings. FIG. 8 shows a system configuration diagram of the traffic management system according to the second embodiment of the present invention, and FIG. 9 shows an example of the first communication terminal in the traffic management system according to the second embodiment. FIG. 10 shows an example of the second communication terminal in the traffic management system according to the embodiment of the present invention.

As shown in FIG. 8, the traffic management system 100 according to the embodiment of the present invention includes a company communication terminal 2 (first communication terminal) and a personal mobile communication terminal 3 (second communication terminal) used in moving vehicles. ) and a VPN server 4 that is directly or indirectly managed by an administrator, and the two terminals and the VPN server 4 are connected via a mobile phone communication network and/or an Internet communication network. Note that the expressions "(first communication terminal)" and "(second communication terminal)" in parentheses are written together to indicate that they correspond to the statements in the claims. .

The company communication terminal 2 (first communication terminal) is operated inside a car or the like. A mobile device is usually provided or loaned by a company as a company-use device, and a typical example is a smartphone, but it also includes smart watches and other movement detectors. Further, the communication terminal is not limited to a mobile terminal, and may be an in-vehicle communication device installed in a car or the like. The personal mobile communication terminal 3 (second communication terminal) is operated in a vehicle such as a car, and is assumed to be a smartphone or the like personally owned by the driver.

The VPN server 4 may be maintained by the administrator himself and directly manage the operation system of the second embodiment, or the administrator may rent out a portion of the server owned by a third party. may be in any of the modes used to manage the operation system of the present invention; This is to limit the use of communication terminals).

The VPN server 4 is assumed to be connected to third-party service content 5, such as a server that supplies services and content provided by others via the Internet communication network, in the same way as with normal Internet use. In addition, a schedule management server 6 is connected to the VPN server 4, but this is an additional functional configuration and is not essential.

As shown in FIG. 9, the company communication terminal 2 (first communication terminal) includes a CPU 21, a memory 22, a display 24 with a touch panel 23, a communication section 25, a speaker 26, a GPS module 27, It includes an acceleration sensor 28 and an angular velocity sensor 29. The memory 22 stores an operating system 221, various application programs 222, data, and the like. Particularly in this embodiment, the memory 22 stores a specific information sending application program 223. The CPU 21 reads an operating system 221, various application programs 222, and a specific information sending application program 223 from the memory 22 and executes them. The display 24 with the touch panel 23 displays screens according to the execution of various application programs 222, specific information sending application programs 223, etc., and also receives operation inputs from the user. The GPS module 27 receives signals from satellites and specifies the position (latitude and longitude) of the company communication terminal 2 (first communication terminal). The acceleration sensor 28 and the angular velocity sensor 29 detect the acceleration and angular velocity of the company communication terminal 2 (first communication terminal), respectively. The speed calculating unit 224 obtains detection signals from the GPS module 27, the acceleration sensor 28, and the angular velocity sensor 29, and detects the moving speed of the vehicle or the like. Alternatively, the vehicle may detect the speed and the company communication terminal 2 (first communication terminal) may receive the information. This aspect is also included in the aspect of the speed detection means of the present invention. In addition, the company communication terminal 2 (first communication terminal) is equipped with functions (not shown) such as a compass (geomagnetic sensor), LiDAR scanner, barometric pressure sensor, altitude sensor, infrared camera, and illuminance sensor, so that benefits can be obtained from these functions. It may also be possible to convert the specifications to be detected into speed.

The specific information sending application program 223 is designed to cooperate with the speed calculating section 224 and the movement mode determining section 225. For example, the speed calculation unit 224 always calculates the speed using the GPS module 27 or the like in the background. The movement mode determination unit 225 uses the acceleration sensor 28 and the angular velocity sensor 29 to determine whether the vehicle is in a specific state. In addition, a geomagnetic sensor (not shown), LiDAR scanner (not shown), barometric pressure sensor (not shown), altitude sensor (not shown), infrared camera (not shown), and illuminance sensor (not shown) are used to calculate speed and identify It may be configured to perform state determination.
Communication between the company communication terminal 2 (first communication terminal) and the VPN server 4 is performed through a normal connection using any communication line of the mobile phone communication network or the Internet communication network. You may also do so. Since it is a company terminal, it is possible that highly confidential information such as accounting information and contract information will be communicated. In such cases, a highly secure VPN connection is effective.

As shown in FIG. 10, the personal mobile communication terminal 3 (second communication terminal) includes a CPU 31, a memory 32, a display 34 with a touch panel 33, a communication unit 35, a speaker 36, and a GPS module 37. The memory 32 stores an operating system 321, various application programs 322, data, etc. The display 34 with a touch panel 33 displays a screen in response to the execution of the various application programs 322, and accepts operation input by the user. The personal mobile communication terminal 3 (second communication terminal) is a smartphone personally owned by the driver, and can naturally be connected to various services via any communication line of a mobile phone communication network or an Internet communication network. However, under the operation management system according to the second embodiment, it is assumed that the personal mobile communication terminal 3 (second communication terminal) is set up to a VPN in the OS according to various protocols such as L2TP, IPSec, and IKEv2 during work hours, and communication is performed through the VPN connection. Measures have been taken between the employer and the employee, such as stipulating in the work rules that a VPN must be set up on a personally owned smartphone during work hours. The operation manager, who is the employer, explains the outline of the system to the driver (employee), and tells him to always carry the company communication terminal 2 (first communication terminal) as a company terminal during work hours, and to enable the VPN setting on the personal mobile communication terminal 3 (second communication terminal), which is a personally owned smartphone, etc. Meanwhile, the driver (employee) sets up the VPN on the personal mobile communication terminal 3 (second communication terminal), which is a personally owned smartphone, etc., from the operating system 321.

The VPN server 4 receives the driving signal output from the company communication terminal 2 (first communication terminal). The driving signal is a signal sent when it is determined that the driver is moving at high speed but is not on a train. The communication between the VPN server 4 and the company communication terminal 2 (first communication terminal) is performed by any communication network and any connection method. The VPN server 4 also communicates with the personal mobile communication terminal 3 (second communication terminal) through a VPN connection. The driver (employee) can access services and content provided by others via the VPN server 4 to enjoy videos and games and receive various services. However, this is naturally limited to situations where the driver is not driving. The VPN server 4 is configured to monitor the driving signal output from the company communication terminal 2 (first communication terminal) and the amount of communication in the VPN connection of the personal mobile communication terminal 3 (second communication terminal), and to impose certain restrictions on the use of the personal mobile communication terminal 3 (second communication terminal).

There is a link between the company communication terminal 2 (first communication terminal), which is a company terminal, and the personal mobile communication terminal 3 (second communication terminal), which is a personally owned smartphone, etc., and the VPN The server 4 holds the registration information. Furthermore, the VPN server 4 is capable of generating VPN connection information for each driver (employee).

(Operation flow)
11 is a flow diagram showing the operation of the traffic control system according to the embodiment of the present invention. Note that this diagram conceptually shows the flow of the operation, and is not a pure processing flow.
The left side shows the transition of the operation or state of the company terminal as the company communication terminal 2 (first communication terminal), the right side shows the flow of the operation or state of the private terminal as the personal portable communication terminal 3 (second communication terminal), and in the center shows the operation or state of the VPN server 4. The steps executed or judged at each point are marked as "S1-O", "S2-△", "S3-X", etc.

First, the flow of the company communication terminal 2 (first communication terminal) will be described. When the driver (employee) is not in the vehicle or when the vehicle continues to be completely stopped, the company communication terminal 2 (first communication terminal) can be operated and communicated. In addition, when the driver (employee) is on a train, the company communication terminal 2 (first communication terminal) can be operated and communicated. When the vehicle starts moving and the speed exceeds a preset threshold value in step S1-1 and it is determined that the driver is not on a train, the company communication terminal 2 (first communication terminal) transmits a driving signal indicating that the vehicle is moving to the VPN server 4 and disables the operation and communication of the company communication terminal 2 (first communication terminal). The judgment in step S1-1 is made by the judgment process using the index related to acceleration (FIG. 2 or FIG. 5) already described or the judgment process using the value acquired by the geomagnetic sensor (not shown).
Step S1-2 shows the state in which the company communication terminal 2 (first communication terminal) has been rendered inoperable in this way. On the other hand, if it is determined in step S1-1 that the speed does not exceed a preset threshold or that the user is on a train, the company communication terminal 2 (first communication terminal) will continue to remain operable. Step S1-3 shows this state.

Note that the company communication terminal 2 (first communication terminal) is a company terminal provided or lent by the company, and if the terminal has sufficient functional limitations in advance, step S1- 1, the driving signal may only be transmitted to the VPN server 4. In short, disabling the operation of the company communication terminal 2 (first communication terminal) may not be essential depending on the functions provided by the company communication terminal 2 (first communication terminal).

Next, the flow of the personal mobile communication terminal 3 (second communication terminal) and the flow of the VPN server 4 will be explained together. As already explained, during work, the driver (employee) always carries the company communication terminal 2 (first communication terminal) as a company terminal, and also carries a personal mobile communication terminal such as a personally owned smartphone. There is an internal company rule that enables the VPN settings of 3 (second communication terminal). According to the rules, the driver (employee) enables the VPN settings. If the driver (employee) complies with the rules, it is determined in step S2-1 that the VPN settings are valid. After that, as long as the driver (employee) is not driving a car or traveling by train, the driver (employee) can use content and various services on the Internet through the VPN connection. Step S2-2 shows this state.

As a result of the determination process in step S1-1, the VPN server 4 that has determined that it has received the transmitted driving signal in step S3-1 then links it to the company communication terminal 2 (first communication terminal). The amount of VPN communication of the personal mobile communication terminal 3 (second communication terminal) that is being accessed is monitored. The personal mobile communication terminal 3 (second communication terminal) uses a small amount of communication (for example, the location of a smartphone) through the VPN by the operation of an application running in the background even when the driver (employee) is not aware of it. Communicate information, etc.) constantly. However, if the driver (employee) actively tries to use Internet services, the amount of VPN communication will increase significantly. If the VPN server 4, which continues to monitor, determines in step S3-2 that the instantaneous value of the VPN communication amount exceeds a preset threshold, the VPN communication of the personal mobile communication terminal 3 (second communication terminal) is terminated. At the same time, a process is performed to notify, by communication to an administrator (not shown), that the driver (employee) of the personal mobile communication terminal 3 (second communication terminal) used the terminal while driving. Further, the driver (employee) may also be notified as a warning. Step S2-3 shows the state of the personal mobile communication terminal 3 (second communication terminal) in which VPN communication is stopped.

When a driving signal is received from the company communication terminal 2 (first communication terminal) in step S3-1, the VPN of the personal mobile communication terminal 3 (second communication terminal) linked to it is immediately activated. One option is to cut off communications, but there may be unforeseen situations where emergency emails or LINE notifications from family members are sent to the personal mobile communication terminal 3 (second communication terminal), so such a method is not recommended. Signals with a small amount of communication can be received. For the same reason, instead of simply comparing the instantaneous value of the VPN traffic with a threshold, the traffic is continuously monitored, and the condition for judgment in step S3-2 is when the integrated value of the VPN traffic exceeds the threshold. You can also use it as

By the way, even though there is a company rule to enable the VPN settings on personal smartphones during work, some drivers (employees) try to continue using their smartphones without enabling the VPN settings. I might. The traffic management system according to the embodiment of the present invention is configured to be able to effectively cope with such a case.

If the driver (employee) does not enable the VPN settings, it is not determined in step S2-1 that the VPN settings are valid. Drivers (employees) who wish to use the Internet service by normal communication means that do not rely on a VPN connection do not have to turn off the power to the personal mobile communication terminal 3 (second communication terminal). , there should be no need to set it to airplane mode. In this case, in step S2-4, it is determined that the power is not turned off or the airplane mode is not set. The personal mobile communication terminal 3 (second communication terminal) may perform a small amount of communication through the operation of an application etc. running in the background by normal communication means that do not rely on VPN, or may communicate with the driver. (employees) may conduct a certain amount of communication through active manipulation. Step S2-5 shows this state.

On the other hand, the VPN server 4 cannot recognize such communication from the personal mobile communication terminal 3 (second communication terminal). This is because no communication is performed through the VPN connection. Therefore, in step S3-3, it is determined whether the VPN communication of the personal mobile communication terminal 3 (second communication terminal) to be monitored has not been performed for a certain period of time, and if the VPN communication has not been performed, the personal Processing is performed to check whether the mobile communication terminal 3 (second communication terminal) is not communicating using normal communication means. The process is to perform one-off telephone communication from the VPN server 4 to the personal mobile communication terminal 3 (second communication terminal). If a ring tone is returned from the personal mobile communication terminal 3 (second communication terminal), even though the power of the personal mobile communication terminal 3 (second communication terminal) is turned on, the VPN communication , it is determined that the VPN setting of the personal mobile communication terminal 3 (second communication terminal) is disabled based on the fact that even a small amount of communication is not performed in the background. If an answer message such as an answering machine message is returned from the personal mobile communication terminal 3 (second communication terminal), it is determined that the personal mobile communication terminal 3 (second communication terminal) is powered off. and is treated as no problem.

Further, the traffic management system according to the second embodiment of the present invention is configured to be able to cope with other special situations by adding additional functional configurations. Another special situation is a situation where the vehicle is driving in an area where radio waves cannot reach (tunnel, underground, etc.). The schedule management server 6, which is an additional functional configuration, stores the rough driving schedule of the target driver (employee) for the day in association with the company communication terminal 2 (first communication terminal). ing. The VPN server 4 detects that the travel information that would normally come from the company terminal is not being delivered, and while referring to the travel schedule stored in the schedule management server 6, sends the information to the personal mobile communication terminal 3 (second communication terminal). Perform one-off telephone communication. If neither the ring tone nor the answer message is returned from the personal mobile communication terminal 3 (second communication terminal), or if a message such as "You are currently out of reception" is returned, It is assumed that the vehicle is traveling in a tunnel or underground, and is treated as no problem.

Other special situations include forgetting to bring a company device with you, or intentionally not carrying it with you, and forgetting to set up a VPN on your mobile device, or not setting it up intentionally. Ru. By referring to the travel schedule stored in the schedule management server 6, the VPN server 4 recognizes that travel information that would normally be received from the company terminal has not arrived. Therefore, the VPN server 4 performs one-off telephone communication to the personal mobile communication terminal 3 (second communication terminal). When a ring tone is returned from the personal mobile communication terminal 3 (second communication terminal), it is assumed that the driver has made a mistake or has violated the rules, and a warning or notification is issued.

The traffic management systems according to the first and second embodiments of the present invention have been described above in detail with reference to the drawings, but the specific configuration is not limited to these embodiments, and the present invention Even if there are changes in the design within the scope of the gist of the invention, they are included in the present invention. For example, we used acceleration-related indicators and magnetic noise to determine whether people were traveling on a train or not, but if there is any other method that can effectively determine whether they are on a train, we would like to use that method. It may be used. The present invention does not simply propose a method that can determine whether a person is on a train, but also solves the problem of application usage restrictions being activated even when the user is not driving, using technology to prevent "driving while driving." There is essential technical significance in solving this problem. This should be clearly understood since the present invention can be applied to both the first embodiment of suspending application usage and the second embodiment of restricting communication volume.

1 Communication terminal (first communication terminal)
11 CPU
12 Memory 121 Operating system 122 Various application programs 123 Operation restriction application program (app usage restriction means)
124 Speed calculation unit 125 Movement mode determination unit 13 Touch panel 14 Display 15 Communication unit 16 Speaker 17 GPS module 18 Acceleration sensor 19 Angular velocity sensor 100 Operation management system 2 Company terminal (first communication terminal)
21 CPU
22 Memory 221 Operating system 222 Various application programs 223 Specific information sending application program (app usage restriction means)
224 Speed calculation unit 225 Movement mode determination unit 23 Touch panel 24 Display 25 Communication unit 26 Speaker 27 GPS module 28 Acceleration sensor 29 Angular velocity sensor 3 Private terminal (second communication terminal)
31 CPU
32 Memory 321 Operating system 322 Various application programs 33 Touch panel 34 Display 35 Communication unit 36 Speaker 37 GPS module 4 VPN server 5 Service content provided by others 6 Schedule management server

Claims (8)

A first communication terminal used in a traffic management system that monitors speed or movement and limits the use of applications,
A speed etc. detection means for detecting original data regarding speed or movement, a movement mode determination means for detecting and determining a movement mode, and an application installed in the first communication terminal or linked with the first communication terminal. comprising an application usage restriction means for restricting the usage of the application installed on the second communication terminal;
In principle, the application usage restriction means is activated when the original data regarding the detected speed or movement satisfies a predetermined condition. Even in such a case, when the movement mode determining means determines that the application usage restriction means is in a specific state, the application usage restriction means is not activated. 2. The application usage restriction means, when activated, makes it impossible to use at least some of the plurality of applications installed in the first communication terminal. communication terminal. The first communication terminal constructs an operation management system by a second communication terminal associated with the first communication terminal, and a VPN server that communicates with the second communication terminal through a VPN connection. There it is,
The communication terminal according to claim 1, wherein the application usage restriction means transmits specific information to the VPN server when activated. 4. The communication terminal according to claim 3, wherein the VPN server monitors the amount of communication caused by the VPN connection, and limits or cuts off the VPN connection when the amount of communication caused by the VPN connection meets a predetermined condition. The movement mode determining means includes an accelerometer and a determination processing means,
The determination processing means processes the time series data of the detected values of the accelerometer and compares the processed values with a plurality of threshold values to determine whether the movement is by train or by passenger vehicle. The communication terminal according to claim 1, wherein the communication terminal is determined to be in the specific state when it is determined that the person is traveling by train. The movement mode determination means includes a magnetic sensor and a determination processing means.
The communication terminal according to claim 1, characterized in that the judgment processing means processes time series data of the detection value of the magnetic sensor, compares the processed value with a threshold value, and determines whether regenerative braking is being used, thereby determining whether the movement is by train or by passenger vehicle, and determines that the specific state is present when it is determined that the movement is by train. It is used in a traffic management system that monitors speed or movement and restricts the use of applications, and includes a speed detection means for detecting original data related to speed or movement, and a physical quantity measurement means for measuring a predetermined physical quantity. A computer of a first communication terminal having,
detecting original data regarding speed or movement;
measuring a predetermined physical quantity;
determining a movement mode based on the measured physical quantity;
A communication terminal program that at least executes the step of restricting the use of an application installed in the first communication terminal or an application installed in a second communication terminal associated with the first communication terminal, the program comprising:
An application installed on the first communication terminal or an application installed on a second communication terminal associated with the first communication terminal when the original data regarding the detected speed or movement satisfies a predetermined condition. However, even if the detected speed or original data regarding movement satisfies a predetermined condition, if the determined movement mode is in a specific state, the usage restriction may be applied. A communication terminal program characterized in that: The step of determining includes a step of determining whether the travel is by train or by a passenger vehicle, and if it is determined that the travel is by train, the specific state is determined. The communication terminal program according to claim 7.

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