JP2004257838A - Car navigation system, terminal device used for system, communication method and communication control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a car navigation system and a terminal device capable of reservation to a destination by a simple operation. <P>SOLUTION: It is determined whether an arrival estimated time is within a range of a utilizable time or not by comparing by a cellular phone 14 utilizable time information acquired from a home page of the destination with arrival estimated time information calculated by a navigation part 11. When the arrival estimated time is within the range of the utilizable time, a call such as reservation is started to the telephone number of the home page of the destination. Hence, the complication of operation is avoided, and the reservation for the destination can be performed by safe and simple operation even during travelling. When the arrival estimated time is out of the range of the utilizable time, an error message for showing the effect is displayed on the cellular phone 14, and hereby a wrong call such as the reservation by a user can be avoided. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a car navigation system, a terminal device used in the system, a communication method, and a communication control program. In particular, the present invention relates to a car navigation system suitable for use when going to a facility requiring a reservation as a destination. The present invention relates to a terminal device, a communication method, and a communication control program used.
[0002]
[Prior art]
In a car navigation system, the current position of a running or stationary vehicle is displayed on a display unit in real time. For example, when a destination is set, an optimal route is calculated and taught to a driver. Various operations in the system are performed by a dedicated remote control unit (hereinafter, referred to as “remote control”), but recently, instead of the remote control, a terminal device such as a mobile phone or a portable information terminal is used. There is also. In this case, remote control data for operating the system is downloaded from the Web site to the terminal device via the Internet, and a function equivalent to that of the dedicated remote control is set in the terminal device.
[0003]
Conventionally, this type of car navigation system includes a navigation unit 1, a display 2, a remote controller 3, and a mobile phone 4, as shown in FIG. The navigation unit 1 has a GPS receiver (Global Positioning System, global positioning system), and when a destination is set, based on the current position information and the position information of the same destination, the current position and the same destination are used. The estimated time of arrival is calculated by calculating the required time until the arrival. The display 2 displays the estimated arrival time along with the traveling speed and the like based on the generated estimated arrival time information, and relays communication between the remote controller 3 or the mobile phone 4 and the navigation unit 1 via the infrared port 2a. . The remote controller 3 operates the entire navigation unit 1 via the infrared port 2a of the display 2, for example, for setting a destination. The mobile phone 4 is set to perform the same operation as the remote control 3 via the infrared port 4a by downloading remote control data for remotely controlling the navigation unit 1 from a Web site.
[0004]
In this car navigation system, a destination is set from the remote controller 3 or the mobile phone 4, and current position information (latitude, longitude, traveling speed), traffic information (for example, traffic congestion), and The required time from the current position to the same destination is calculated based on the position information (latitude, longitude), and estimated arrival time information is generated. Then, the display 2 displays the estimated arrival time, the traveling distance, and the like.
[0005]
In addition to the above-described car navigation system, conventionally, as this kind of technology, there has been one described in the following literature, for example.
In the indoor home appliance control device described in Patent Literature 1, a home server is accessed from a mobile body by wireless communication, and a reservation for a home appliance controlled by the home server is confirmed. Since the moving object has a function of detecting the current position, it is possible to confirm whether or not an appropriate reservation has been made by taking into account the time required to move indoors.
[0006]
In the car navigation device described in Patent Document 2, when a destination candidate is output from facility data based on a user's search instruction, whether the expected arrival time of the destination candidate at the facility is within business hours or outside business hours. And outputs the result. The user can specify the destination while referring to the output.
[0007]
In the service system described in Patent Document 3, a car having a car navigation system communicates with an application service unit using a mobile phone, and when a user selects a destination which is a use facility, the application service unit becomes: Obtain the vehicle position information of the user side set in the car navigation, obtain the position information of the destination selected by the user side, calculate the estimated arrival time to the destination of the user side from these, Since this is transmitted to the destination side, it is possible to improve the efficiency of the reservation management work and the like on the destination side.
[0008]
In the navigation device described in Patent Literature 4, map data is downloaded, and only when the map data that is newer than the currently downloaded map data is present in the information center, the minimum data required by the user is determined. It is possible to download this without having to put a lot of trouble on the user.
[0009]
[Patent Document 1]
JP 2002-064881A (Problem, Solution)
[Patent Document 2]
Japanese Patent Application Laid-Open No. 2002-09839 (Problem, Solution)
[Patent Document 3]
JP 2002-257566 A (Problem, Solution)
[Patent Document 4]
JP 2002-342330 A (Problem, Solution)
[0010]
[Problems to be solved by the invention]
However, the conventional car navigation system has the following problems.
That is, when the destination is a facility that requires reservation, such as a restaurant or a beauty salon, for example, if there is an estimated arrival time within the reservable time, the user uses the mobile phone 4 to make a reservation. Do. In this case, after releasing the function of the remote controller of the mobile phone 4, the user needs to make a call from the mobile phone 4 to perform a reservation operation, which not only complicates the operation but also poses a danger while driving. There was a problem of accompanying.
[0011]
Further, in the indoor home appliance control device described in Patent Literature 1, it is confirmed whether or not an appropriate reservation is made, but there is a problem that the reservation is not made by a simple operation. The car navigation device described in Patent Document 2, the service system described in Patent Document 3, and the navigation device described in Patent Document 4 also have the same problem.
[0012]
The present invention has been made in view of the above circumstances, and has as its object to provide a car navigation system in which facility reservation is performed by a simple operation, a terminal device used in the system, a communication method, and a communication control program. I have.
[0013]
[Means for Solving the Problems]
In order to solve the above problem, the invention according to claim 1 is mounted on an automobile, detects a current location of the automobile, and detects the destination based on current location information and location information of a given destination. A terminal device for analyzing a homepage of the destination published on a communication line, and extracting location information, available time information and a network address of the destination; A navigation unit that detects the current position, calculates a required time from the current position to the destination based on the current position information and the position information of the destination, and generates expected arrival time information. The terminal device compares the available time information with the expected arrival time information and determines that the expected arrival time is within the available time range of the destination. When the desired information is transmitted to the network address of the destination, and when the expected arrival time is out of the range of the available time, it is configured to notify the user of this fact. I have.
[0014]
According to a second aspect of the present invention, in the car navigation system according to the first aspect, the terminal device includes a storage unit that stores remote control data for remotely controlling the navigation unit and the home page; The stored home page is analyzed to extract the location information, available time information, and network address of the destination, and the arrival forecast transmitted from the available time information and the navigation unit based on the remote control data. An analysis unit that compares time information with the estimated arrival time to determine whether or not the estimated arrival time is within the available time; and A transmitting unit for transmitting desired information to the network address of the mobile terminal; When out of range, is characterized by comprising a display unit that displays this fact.
[0015]
According to a third aspect of the present invention, estimated time of arrival information is calculated by calculating the required time from the current position to the destination based on the current position information of the vehicle and the given position information of the destination. Used in a car navigation system having a navigation unit that generates the position information of the destination between the navigation unit and the terminal device that receives the estimated time of arrival information and is disclosed on a communication line. The homepage corresponding to the destination is analyzed to extract the location information, available time information and network address of the destination, and compare the expected arrival time information with the available time information to determine the expected arrival time. When the destination is within the available time range, desired information is transmitted to the destination network address, and the arrival When the time is outside the range of the available time, it is characterized in that it is configured to notify this fact to the user.
[0016]
According to a fourth aspect of the present invention, estimated time of arrival information is calculated by calculating a required time from a current position to the destination based on the current position information of the vehicle and the given destination information. The present invention relates to a terminal device that is used in a car navigation system having a navigation unit that generates the location information, and that transmits the position information of the destination to and from the navigation unit and receives the estimated arrival time information. A storage unit for storing remote control data and the homepage, and analyzing the homepage stored in the storage unit to extract location information, available time information and network address of the destination, and Comparing the estimated time information with the available time information, the expected arrival time indicates the range of the available time. An analysis unit that determines whether the arrival time is within the range; a transmission unit that transmits desired information to the destination network address when the expected arrival time is within the available time range; When the estimated time is outside the range of the available time, a display unit is provided for displaying the fact.
[0017]
According to a fifth aspect of the present invention, there is provided a terminal device for analyzing a homepage corresponding to a destination published on a communication line, and extracting location information, available time information and network address of the destination. A navigation unit that is mounted on a vehicle and calculates a required time from a current position to the destination based on the current position information of the vehicle and the position information of the destination to generate expected arrival time information. Used in a car navigation system, the terminal device compares the available time information with the expected arrival time information, and when the expected arrival time is within the range of available time, the terminal device Transmitting desired information to the user, and when the expected arrival time is out of the range of the available time, notifying the user of the fact. There.
[0018]
According to a sixth aspect of the present invention, there is provided the communication method according to the fifth aspect, wherein the terminal device stores remote control data for remotely controlling the navigation unit and the homepage, and the storage process is performed. The homepage is analyzed to extract the location information of the destination, the available time information and the network address, and the available time information and the estimated arrival time information transmitted from the navigation unit based on the remote control data. Analysis processing for comparing whether or not the expected arrival time is within the range of available time; and, when the expected time of arrival is within the range of available time, A transmission process for transmitting desired information, and when the expected arrival time is out of the available time range, It is characterized by performing the Shimesuru display process.
[0019]
The invention according to claim 7 relates to a communication control program, and is characterized by causing a computer to control the terminal device according to claim 3 or 4.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing an electrical configuration of a car navigation system according to an embodiment of the present invention.
The car navigation system of this embodiment is mounted on a car, and includes a navigation unit 11, a display 12, a remote controller 13, and a mobile phone 14, as shown in FIG. The navigation unit 11 has a GPS receiver that detects the current position of the car, and when a destination is set, the navigation unit 11 determines the current position from the current position to the destination based on the current position information and the position information of the destination. The required time is calculated to generate expected arrival time information. The display 12 displays the estimated arrival time together with the traveling speed and the like based on the generated estimated arrival time information, and relays communication between the remote controller 13 or the mobile phone 14 and the navigation unit 11 via the infrared port 12a. . The remote controller 13 operates the entire navigation unit 11 via the infrared port 12a of the display 12, for example, for setting a destination.
[0021]
The mobile phone 14 is provided with a function of performing the same operation as the remote control 13 via the infrared port 14a by downloading remote control data for remotely controlling the navigation unit 11 from a Web site. Further, the mobile phone 14 analyzes the contents of the homepage corresponding to the destination disclosed on the communication line (for example, the Internet), extracts the location information, available time information and network address of the destination, and extracts the same. Comparing the available time information with the expected arrival time information generated by the navigation unit 11, if the expected arrival time is within the available time range, the desired information (for example, A reservation telephone or e-mail) is transmitted, and when the estimated arrival time is out of the range of the available time, this fact is displayed on the display 12 or the display unit of the mobile phone 14.
[0022]
FIG. 2 is a block diagram showing an electrical configuration of the mobile phone 14 in FIG.
The mobile phone 14 includes an antenna 21, a radio unit 22, a display unit 23, an operation unit 24, a memory 25, a data analysis unit 26, a control unit 27, and an infrared port 14a. The antenna 21 transmits and receives radio waves W to and from a wireless base station (not shown). The wireless unit 22 performs transmission / reception processing of wireless data via the antenna 21. In this embodiment, in particular, in this embodiment, remote control data is downloaded from a Web site via the Internet, and the expected arrival time is within the usable time range. At some point, desired information is transmitted to the destination network address. In addition to displaying various information, the display unit 23, in this embodiment, when the expected arrival time is out of the available time range, displays this fact.
[0023]
The operation unit 24 is configured by a plurality of button switches and the like, and is a unit for performing various operations such as input of characters and the like and selection of items by a user operation. The memory 25 stores the remote control data and the homepage. The data analysis unit 26 analyzes the contents of the homepage stored in the memory 25 to extract the location information of the destination, the available time information and the network address, and the remote available data from the available time information and the navigation unit 11. To determine whether the expected arrival time is within the range of available time by comparing the estimated arrival time information transmitted based on the information. The control unit 27 has a CPU (central processing unit) 27a for controlling the entire mobile phone 14, and a ROM (read only memory) 27b in which a communication control program for operating the CPU 27a is recorded. The infrared port 14a relays communication with the navigation unit 11 via the infrared port 12a of the display 12.
[0024]
FIG. 3 is a diagram illustrating the principle of position detection in the navigation unit 11 in FIG.
As shown in FIG. 3A, signal waves WA, WB, and WC are respectively emitted from satellites A, B, and C toward the earth. These signal waves WA, WB, and WC are received by the GPS receiver in the navigation unit 11, and the delay time of each of the signal waves WA, WB, and WC is measured, so that GPS reception from the satellites A, B, and C is performed. The distance to the aircraft is required. Now, if the distance rA from the satellite A to the GPS receiver is known, the current position of the GPS receiver is somewhere on the circumference a of the radius rA.
[0025]
Similarly, the circumference b of the radius rB is obtained by the signal radio wave WB emitted from the satellite B. As shown in FIG. 3B, the current position of the GPS receiver is a point P or a point Q where the circumference a and the circumference b overlap. Further, when the intersection of the circumference c due to the distance rC from the satellite C to the GPS receiver is added, three overlapping points P on the three circumferences become the current position of the GPS receiver. Thus, the point P on the earth is located by precisely measuring the distances from the three satellites A, B, and C to the GPS receiver. If there are signal radio waves emitted from four or more satellites, three-dimensional positioning including the altitude of the GPS receiver is performed.
[0026]
FIG. 4 is a flowchart for explaining the operation of the car navigation system in FIG. 1, FIG. 5 is a schematic diagram showing a state where remote control data for operating the system is downloaded to the mobile phone 14, and FIG. FIG. 7 is a schematic diagram showing a state of being downloaded to the mobile phone 14, and FIG. 7 is a diagram showing an example of a downloaded home page.
With reference to these drawings, a communication method used in the car navigation system of this embodiment will be described.
The mobile phone 14 is connected to a company A website 31 via a wireless base station (not shown) and the Internet NW. Then, as shown in FIG. 5, remote control data (for example, “company X car navigation”) for remotely controlling the navigation unit 11 is selected from the remote control data R stored in the company A website 31, and the mobile phone is operated. It is downloaded to the telephone 14 (step A1). In this case, the remote control data R is provided on the company A website 31 after being converted into a format that can be stored in a terminal device such as the mobile phone 14. The downloaded remote control data is stored and registered in the memory 25 inside the mobile phone 14 (step A2, storage processing).
[0027]
Thereafter, the mobile phone 14 is connected to the C company information site 32 via a wireless base station (not shown) and the Internet NW (step A3). Then, as shown in FIG. 6, the homepage H published on the Internet from the company C information site 32 is taken into the mobile phone 14, stored in the memory 25, and displayed on the display unit 23. The homepage H is composed of, for example, hypertext such as HTML (Hyper Text Markup Language), and stores and recreation areas such as restaurants, beauty salons, department stores, amusement parks, libraries, hospitals, etc., which are published in local information magazines and the like. Provide information such as. The information provided includes location information (latitude and longitude) on the map for stores and recreational areas, and for restaurants and beauty salons, the available time and contact information (phone number, In the case of a department store or an amusement park, the business hours are used.
[0028]
The user operates the operation unit 24 of the mobile phone 14 to search for a destination or a stopover place or a vacation spot on the homepage H (step A4). At this time, for example, information pages that are sequentially detailed, such as “menu list” L, “gourmet” M, and “XX restaurant” N in FIG. 6, are displayed. It is determined (step A5). For example, when it is determined to go to “XX restaurant”, a homepage H shown in FIG. 7 is displayed. On this homepage H, time information t such as reservation time and business hours, position information p on a map such as latitude and longitude, telephone number n, and mail address m are described. For the determined destination or transit point, the data analysis unit 26 extracts position information (latitude and longitude) on the map, available time information, and a network address (step A6).
[0029]
The mobile phone 14 is activated as a remote controller based on the remote controller data stored in the memory 25 (step A7), and the position information extracted in step A6 is displayed on the display unit 23. This position information is transmitted to the navigation unit 11 via the infrared port 14a and the infrared port 12a of the display 12 (Step A8). In the navigation unit 11, the position information (latitude / longitude) of the destination is set on an internal map (step A9), and based on the position information of the destination and the current position information of the vehicle, the destination is calculated from the current position. The required time is calculated and expected arrival time information is generated (step A10). The expected arrival time information is transmitted from the navigation unit 11 via the infrared port 12a based on the remote control data, and received by the mobile phone 14 (step A11).
[0030]
The data analysis unit 26 of the mobile phone 14 extracts available time information (reservation time, business hours) from the information page displayed in step A5, and compares the available time information with expected arrival time information. It is determined whether or not the expected arrival time is within the range of the available time (step A13, analysis processing). When the estimated arrival time is within the available time range, the data analysis unit 26 of the mobile phone 14 extracts the destination network address (for example, telephone number) from the information page displayed in step A5. (Step A14). Then, the desired information is transmitted from the mobile phone 14 to the contact corresponding to the network address (telephone number) (for example, a telephone call for reservation or the like is started) (step A15, transmission processing). When the estimated time of arrival is out of the available time range in step A13, an error message indicating this is displayed on the display unit 23 of the mobile phone 14 (step A16, display processing), and step A3 is performed. Return to
[0031]
As described above, in this embodiment, the available time information obtained from the home page of the destination and the estimated time of arrival information calculated by the navigation unit 11 are compared by the mobile phone 14, and the estimated time of arrival is calculated as the available time. It is determined whether it is within the range or not. If the expected arrival time is within the range of the available time, a call such as a reservation is started to the telephone number of the home page of the destination, so the operation is not performed. The complication is avoided, and the reservation for the destination is performed by a safe and simple operation even while traveling. Further, when the estimated arrival time is out of the usable time range, an error message indicating this is displayed on the display unit 23 of the mobile phone 14, so that the user does not mistakenly make a call such as a reservation. Is done. Further, the mobile phone 14 stores the remote control data of the navigation unit 11 in the memory 25 and has a function of performing the same operation as the remote control 13, so that the position information (latitude and longitude) obtained from the home page H can be used for navigation. By transmitting the estimated arrival time calculated by the navigation unit 11 and comparing the estimated arrival time with the available time, the operability is improved as compared with the remote controller 13. Further, the mobile phone 14 can set the destination and the waypoint without connecting to the navigation unit 11 based on the position information acquired from the homepage H, so that the operability is improved as compared with the remote controller 13.
[0032]
As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment. Included in the invention.
For example, the terminal device may be a PDA (Personal Digital Assistants) that analyzes hypertext and can be connected to the Internet NW, a portable personal computer, or the like, in addition to the mobile phone 14. Further, remote control data for remotely controlling the navigation unit 11 may be read from a recording medium (for example, a flexible disk or a memory stick) in which the remote control data is recorded, in addition to being downloaded from a Web site. Further, the network address extracted in step A14 may be an electronic mail address or an Internet address (Uniform Resource Locator, URL) in addition to the telephone number. In step A16, an error message is displayed on the display unit 23. For example, an alarm sound may be generated.
[0033]
【The invention's effect】
As described above, according to the configuration of the present invention, the available time information acquired from the home page of the destination and the estimated arrival time information calculated by the navigation unit are compared by the terminal device, and the estimated arrival time can be used. It is determined whether it is within the time range, and when the expected arrival time is within the available time range, a call such as a reservation is started to the telephone number of the homepage of the destination, The operation can be prevented from being complicated, and a reservation for the destination can be made with a safe and simple operation even during traveling. Further, when the estimated arrival time is outside the range of the available time, an error message indicating this is displayed on the display unit of the terminal device, so that it is possible to prevent the user from making a call such as a reservation by mistake. In addition, the terminal device stores the remote control data of the navigation unit in the storage unit and has a function of performing the same operation as the remote control, so that the position information acquired from the homepage is transmitted to the navigation unit, By receiving the estimated arrival time calculated in the above and comparing the estimated arrival time with the available time, the operability can be improved as compared with the remote controller. In addition, since the terminal device can set the destination and the waypoint without connecting to the navigation unit based on the position information acquired from the homepage, the operability can be improved as compared with the remote controller.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an electrical configuration of a car navigation system according to an embodiment of the present invention.
FIG. 2 is a block diagram showing an electrical configuration of the mobile phone 14 in FIG.
FIG. 3 is a diagram illustrating the principle of position detection in a navigation unit 11 in FIG.
FIG. 4 is a flowchart illustrating an operation of the car navigation system of FIG. 1;
FIG. 5 is a schematic diagram showing a state where remote control data is downloaded.
FIG. 6 is a schematic diagram showing a state where a homepage is downloaded.
FIG. 7 is a diagram showing an example of a downloaded home page.
FIG. 8 is a block diagram showing an electrical configuration of a conventional car navigation system.
[Explanation of symbols]
11 Navigation section
12 Display
13 Remote control
14 Mobile phone (terminal device)
21 Antenna
22 Radio section (transmission section)
23 Display
24 Operation unit
25 memory (storage unit)
26 Data analysis unit (analysis unit)
27 Control unit
27a CPU (central processing unit)
27b ROM (read only memory)
NW Internet (communication line)
H homepage
t Time information (available time information)
p Location information
n Telephone number (network address)
m mail address (network address)

Claims (7)

A car navigation system mounted on an automobile, detecting a current location of the automobile, and displaying an estimated time of arrival at the destination based on the current location information and the location information of the given destination,
A terminal device for analyzing a homepage of the destination published on a communication line, extracting location information of the destination, available time information and a network address, and detecting the current location, and detecting the current location; A navigation unit that calculates a required time from a current position to the destination based on the information and the position information of the destination to generate expected arrival time information,
The terminal device,
Comparing the available time information and the expected time of arrival information, when the expected time of arrival is within the range of available time of the destination, transmits desired information to the network address of the destination. When the expected arrival time is out of the range of the available time, the user is notified of this fact. The terminal device,
Remote control data for remotely controlling the navigation unit, and a storage unit for storing the homepage,
The homepage stored in the storage unit is analyzed to extract the location information of the destination, the available time information and the network address, and transmitted based on the available time information and the remote control data from the navigation unit. An analysis unit that compares the expected arrival time information with the estimated arrival time information to determine whether the expected arrival time is within the range of the available time.
When the expected arrival time is within the range of the available time, a transmission unit that transmits desired information to the destination network address,
2. The car navigation system according to claim 1, further comprising a display unit for displaying when the estimated arrival time is out of the available time range. A car which is mounted on a car and has a navigation unit which calculates a required time from a current position to the destination based on the current position information of the car and a given destination, and generates expected arrival time information. A terminal device that is used for a navigation system and transmits the position information of the destination between the navigation unit and the estimated arrival time information,
Analyze the homepage corresponding to the destination published on the communication line to extract the location information, available time information and network address of the destination, and compare the expected arrival time information with the available time information Then, when the estimated arrival time is within the available time range of the destination, transmitting desired information to the network address of the destination, and the expected arrival time is out of the available time range A terminal device for notifying the user of the fact. A car which is mounted on a car and has a navigation unit which calculates a required time from a current position to the destination based on the current position information of the car and a given destination, and generates expected arrival time information. A terminal device that is used for a navigation system and transmits the position information of the destination between the navigation unit and the estimated arrival time information,
Remote control data for remotely controlling the navigation unit, and a storage unit for storing the homepage,
The homepage stored in the storage unit is analyzed to extract the location information of the destination, the available time information and the network address, and compare the expected arrival time information with the available time information to estimate the arrival time. An analysis unit that determines whether the time is within the range of available time;
When the expected arrival time is within the range of the available time, a transmission unit that transmits desired information to the destination network address,
A terminal unit for displaying when the expected arrival time is outside the range of the available time, the display unit indicating the fact. A terminal device for analyzing a homepage corresponding to a destination published on a communication line and extracting location information, available time information and network address of the destination, and current location information of the vehicle mounted on the vehicle And a navigation unit that calculates a required time from a current position to the destination based on the position information of the destination and generates expected arrival time information.
The terminal device compares the available time information and the expected time of arrival information, and when the expected time of arrival is within the range of available time, transmits the desired information to the network address of the destination. And a communication method for notifying a user of the fact that the expected arrival time is out of the range of the available time. The communication method according to claim 5,
The terminal device,
Remote control data for remotely controlling the navigation unit, and storage processing for storing the homepage,
The stored home page is analyzed to extract the location information, available time information, and network address of the destination, and the arrival transmitted based on the available time information and the remote control data from the navigation unit. Analysis processing for comparing the expected time information with the expected time information to determine whether or not the expected arrival time is within the range of available time;
When the expected arrival time is within the available time range, a transmission process of transmitting desired information to the destination network address,
When the expected arrival time is out of the usable time range, a display process for displaying the fact is performed. A communication control program for causing a computer to control the terminal device according to claim 3.

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