JP2005106696A - Apparatus for controlling time synchronization, method therefor, program therefor, and method for controlling event and program therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable timing the time with high precision approximated when a terminal is supplied by a server in a network, such as mobile wireless communication having slow communication line. <P>SOLUTION: A plurality of portable phones, including a cellular phone 1, start each application MAP, and then a server time timed by a server clock 51 from a server 5 operating in an application SAP via a network (i.e., a base station 2, a mobile communication network 3, and an internet 4) is obtained a plurality of times. Each portable phone takes into consideration the communication time (a delayed time) spent by each time communication while acquiring the server time from the server 5, and then approximates the server time from the comparison with the internal time timed in an internal clock 11. By using this approximated server time and the internal time timed in the internal clock 11, each cellular phone is made to synchronize with the time which is to become the reference of a portable phone side to the server time timed by the server clock 51. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a time synchronization control device, a time synchronization control method, a time synchronization control program, an event control system, an event control method, and an event control program.

  A mobile phone, which is a type of terminal, has a built-in clock function in advance, and can display the system time on the display unit. Even if the system time built in the mobile phone is corrected based on the Greenwich Mean Time, the error will increase and the next correction opportunity will come.

  This error naturally reflects the error on the time on the application executed on the mobile phone. When the time on the application requires accuracy, it is necessary to correct the error of the system time each time. .

  Usually, since it is prohibited to correct the system time of the mobile phone from the application side, a method for obtaining an accurate time on the application side without correcting the system time has been proposed (Patent Document 1).

JP 2003-248073 A

  However, in the above-described method, after obtaining the built-in time of the mobile phone, the standard time is obtained from the server, the difference between the two times is obtained, and the application time is obtained by adding the difference to the internal time. In general, in communication between a mobile phone and a server, communication delays and communication delays are generally greatly affected by communication procedures, waiting time due to line speed, and the like.

  Therefore, in the conventional method, since the delay at the time of communication is not considered, it is difficult to accurately measure the standard time acquired from the server on the mobile phone side.

  An object of the present invention is to provide a time synchronization control device and a time synchronization control method capable of measuring the time at which a terminal is close to the time supplied from a server with high accuracy in a network such as mobile radio communication with a slow communication line. The present invention provides a time synchronization control program, an event control system, an event control method, and an event control program.

  In order to solve the above-described problem and achieve the above object, a time synchronization control apparatus according to the invention of claim 1 is a time synchronization control apparatus, and includes a time measuring means for measuring an internal time, and a predetermined time via a network. Referring to the server time acquisition unit that executes a plurality of accesses to the server and acquires the server time counted by the predetermined server for each access, and the internal time measured by the timing unit, Internal time acquisition means for acquiring a first internal time when the predetermined server is accessed and a second internal time when the server time is acquired by the server time acquisition means; and the server time acquisition means Storage means for storing each time acquired by the internal time acquisition means for each access; first internal time stored in the storage means among the plurality of accesses; The shortest communication time determining means for determining the shortest communication time when accessing the predetermined server based on the part time, the shortest communication time determined by the shortest communication time determining means, and the server time stored in the storage means Server time approximation means for obtaining an approximate time of the server time based on the determined shortest communication time and the server time at the time of the access, and the near time from the recent time obtained by the server time approximation means. Gap acquisition means for acquiring a gap time by subtracting the first internal time stored in the storage means at the same time as the access time, and the gap acquired by the gap acquisition means at the internal time measured by the time measurement means Synchronous time counting means for adding the time and counting the synchronous time of the server time.

  The invention of claim 2 records the execution time for executing the event and the time to be recorded by the event executed by the execution means as the synchronization time measured by the synchronization time counting means. And a time recording means.

The invention of claim 3 may further comprise time transmitting means for transmitting the time recorded by the time recording means to the predetermined server at an arbitrary timing in claim 2.

The time synchronization control method according to the invention of claim 4 is a time synchronization control method, wherein a plurality of accesses are made to a predetermined server via a network, and the predetermined server counts time for each access. The first step of acquiring the server time, the internal time measured by the time measuring means, the first internal time when the predetermined server is accessed and the first step for each access A second step of acquiring a second internal time when the server time is acquired, a third step of storing the times acquired in the first step and the second step for each access, and the plurality of accesses A fourth step of determining the shortest communication time for accessing the predetermined server based on the first internal time and the second internal time stored in the third step, Based on the shortest communication time determined in step 4 and the server time stored in the third step, the approximated time of the server time is acquired based on the determined shortest communication time and the server time at the time of access. A sixth step of obtaining a gap time by subtracting the first internal time stored in the third step at the same access time from the recent time obtained in the fifth step from the recent time obtained in the fifth step; And a seventh step of measuring the synchronization time of the server time by adding the gap time acquired in the sixth step to the internal time measured by the time measuring means.

According to a fifth aspect of the present invention, in the fourth aspect of the invention, the eighth step of executing an event, and the synchronization time measured in the seventh step of the time to be recorded in the event executed in the eighth step And may further include an eighth step of transmitting the recorded time to the predetermined server at an arbitrary timing.

A time synchronization control program according to the invention of claim 6 is a time synchronization control program that can be executed by a computer of a terminal, and accesses the computer a plurality of times via a network. When the access is made to the predetermined server for each access with reference to the first step of acquiring the server time measured by the predetermined server for each access and the internal time measured by the time measuring means The second step of acquiring the first internal time and the second internal time when the server time is acquired in the first step, and the times acquired in the first step and the second step are stored for each access. And the predetermined step based on the first internal time and the second internal time stored in the third step of the plurality of accesses. A fourth step of determining the shortest communication time when accessing the server, the shortest communication time determined in the fourth step and the server time stored in the third step at the same time as the determined shortest communication time The fifth step of acquiring the approximate time of the server time based on the server time of the server and the third step stored in the third step of the same time as the recent time from the recent time acquired in the fifth step A sixth step of acquiring a gap time by subtracting one internal time, and a time of counting the synchronization time of the server time by adding the gap time acquired in the sixth step to the internal time measured by the time measuring means 7 steps are executed.

The invention according to claim 7 is the invention according to claim 6, wherein the eighth step of executing the event and the time to be recorded by the event executed in the eighth step are recorded at the synchronous time measured in the seventh step. The program may further execute an eighth step of transmitting the recorded time to the predetermined server at an arbitrary timing.

The event control system according to the invention of claim 8 is an event control system for managing event progress by connecting to a terminal via a network, and intermittently communicating with the terminal via the network. Event control means for controlling the progress of the event while performing, time measuring means for measuring the event time used in the event, and event time measured by the time measuring means when the event time is requested from the terminal via the network Server time supplying means for supplying information and collecting means for collecting information recorded from the terminal according to the event time.

The invention according to claim 9 is the invention according to claim 8, wherein the collection means may be one in which the server itself actively collects or actively collects from the terminal. .

Further, in the invention of claim 10 according to claim 8 or 9, the event control means may control an event for a plurality of pre-registered terminals.

Also, in the invention of claim 11 according to claim 8, 9 or 10, the event control means may control the progress of the multiplayer game.

An event control method according to a twelfth aspect of the present invention is an event control method for managing event progress by connecting to a terminal via a network, and intermittently communicating with the terminal via the network. The first step of controlling the progress of the event while performing, the second step of timing the event time used in the event, and the second step when the event time is requested from the terminal via the network A third step of supplying an event time and a fourth step of collecting information recorded according to the event time from the terminal are included.

An event control program according to a thirteenth aspect of the present invention is an event control program executed by a computer of a server that manages event progress by connecting to a terminal via a network, and is connected to the computer via the network. A first step for controlling the progress of the event while intermittently communicating with the terminal, a second step for measuring the event time used in the event, and the event time is requested from the terminal via the network. A third step for supplying the event time counted in the second step and a fourth step for collecting information recorded in accordance with the event time from the terminal. It is.

An event control system according to the invention of claim 14 is an event control system for managing an event progress by connecting a server and a terminal via a network, wherein the server includes a terminal from the terminal via the network. Event information supplying means for supplying information necessary for the progress of the event while performing communication in response to the request, server timing means for timing the server time, and when the server time is requested from the terminal via the network Server time supply means for supplying a server time measured by the server time measurement means, and a collection means for collecting information combining the information generated by the event and the time when the information was recorded from the terminal, In the terminal, the internal time keeping means for keeping the internal time is provided by the event information supply means. Event execution means for executing an event according to the received information, a server time supplied by the server time supply means, and a communication time obtained based on the internal time counting means until the server time is requested and received Information recording the information generated by the event execution means in correspondence with the approximate time measured by the approximate time measurement means A recording unit; and an information transmission unit configured to transmit information obtained by combining the information recorded by the information recording unit and the time when the information was recorded for collection by the collecting unit. It is.

Further, in the invention of claim 15 according to the invention of claim 14, the event execution means may execute an event during non-communication with the server.

As described above, according to the present invention, in a network such as mobile wireless communication with a slow communication line, it is possible to measure the time when the terminal is close to the time supplied from the server with high accuracy.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

  First, the overall configuration will be described with reference to FIG. In this embodiment, a mobile communication network is taken as an example as one of network systems with slow communication lines. FIG. 1 is a schematic diagram showing a time synchronization system according to an embodiment of the present invention. As shown in FIG. 1, for example, the time synchronization system according to the present embodiment includes a base station 2 (representative) and a mobile communication network 3 between a plurality of portable terminals (mobile phone 1 is a representative example) and a server 5. And it is the structure which communicates via the internet 4.

The mobile phone 1 includes an internal clock 11 that measures time as an internal system, an application MAP that implements the time synchronization system according to the present embodiment, and the server 5 includes a server clock 51 that measures time, according to the present embodiment. An application SAP for realizing a time synchronization system is provided.

A plurality of mobile phones including the mobile phone 1 activates the application MAP, and then the server clock 51 from the server 5 operating in the application SAP via the network (for example, the base station 2, the mobile communication network 3, the Internet 4). Get time information counted multiple times.

Each mobile phone obtains time information from the server 5 and approximates the server time from a comparison with the time measured by the internal clock 11 in consideration of the communication time spent in each communication. Using this approximated time and the time measured by the internal clock 11, the time on the mobile phone side can be synchronized with the time measured by the server clock 51.

  Next, the configuration and processing will be described in detail with reference to FIGS. 2 is a block diagram showing an example of the internal configuration of the mobile phone according to the present embodiment, FIG. 3 is a block diagram showing an example of the internal configuration of the server according to the present embodiment, and FIG. 4 is a function of the time synchronization system according to the present embodiment. FIG. 5 is a diagram for explaining contents stored on the mobile phone side according to the present embodiment, FIG. 6 is a diagram for explaining contents stored on the mobile phone side according to the present embodiment, and FIG. These are the figures explaining the contents memorized by the server side by this embodiment.

For example, as shown in FIG. 2, the mobile phone 1 according to the present embodiment includes a communication processing unit 102, a voice processing unit 105, a CPU 106, a ROM 107, a RAM 108, a key group 110, a display 111, and an internal clock 11. Etc. are connected to transmit various data, address signals, control signals, and the like.

The communication processing unit 102 is connected to the antenna 101 and communicates with the base station 2 via the antenna 101 later. With this communication processing unit 102, voice communication and communication with the server 5 can be realized. The voice processing unit 105 is connected to a speaker 103 for voice output and a microphone 104 for voice input, and performs voice processing during reception and transmission.

The CPU 106 controls the entire mobile phone 1 according to the OS stored in the ROM 107. The ROM 107 stores programs such as an OS installed in advance. The CPU 106 controls processing such as time synchronization according to the present embodiment by various portable applications (for example, JAVA (registered trademark) application). In addition, the CPU 106 receives input from the key group 110 and executes various processes, and controls display according to the various processes.

The RAM 108 includes an application MAP for realizing time synchronization according to the present embodiment, a work area 109 for performing various processes, and the like. The key group 110 includes various keys for inputting a telephone number, an address, and the like, and for performing an input at the time of event execution described later. The display 111 forms a display screen when displaying a screen or using a telephone or mail function.

For example, as shown in FIG. 3, the server 5 is connected to the Internet 4, controls communication with a mobile phone via the Internet 4, and controls communication with various terminals connected to the Internet 4. 501, a control unit 502 that controls the entire server, an application SAP, a storage unit 503 having an area such as a work area, a server clock 51 that counts server time, and the like.

  In terms of functions, the mobile phone 1 is, for example, as shown in FIG. 4, the internal clock 11, the server time acquisition control unit 12, the server time inquiry unit 13, the server time reception unit 14, the internal time / server time storage unit 15. The shortest communication time determination unit 16, the server time approximation unit 17, the gap acquisition unit 18, the event time counter 19, the event execution and event information communication unit 20, the event information recording unit 21, and the like.

On the other hand, for example, as shown in FIG. 4, the server 5 includes a server clock 51, a server time inquiry reception unit 52, a server time reading unit 53, a server time transmission unit 54, an event execution information supply unit 55, and an event information collection unit 56. The event information analysis unit 57 and the like.

  According to the functional blocks described above, it is assumed that the mobile phone 1 and the server 5 are measuring the time using the internal clock 11 and the server clock 51, respectively. In the cellular phone 1, first, the server time inquiry unit 13 requests the server 5 for the server time under the control of the server time acquisition control unit 12.

The internal time at the time of this inquiry is supplied from the internal clock 11 to the internal time / server time storage unit 15 and stored therein. In this embodiment, as an example, an inquiry (access) is repeated three times (N = 3), so that the internal time at the time of inquiry is IT1-n (n = 1, 2, 3).

  In one server 5, when the server time inquiry reception unit 52 receives an inquiry from the mobile phone 1, the server time reading unit 53 reads the server time counted by the server clock 51. The server time reading unit 53 supplies the server time read from the server clock 51 to the server time transmission unit 54. The server time transmission unit 54 transmits the server time to the mobile phone 1.

In the mobile phone 1, when the server time receiving unit 14 receives the server time transmitted from the server 5, the internal time at the time of reception is supplied to the internal clock / server time storage unit 15 through the internal clock 11. At this time, let IT2-n (n = 1, 2, 3) be the internal time when obtaining the server time corresponding to the internal time IT1-n (n = 1, 2, 3) at the time of inquiry. The server time is ST1, ST2, and ST3 for each access.

  For example, as shown in FIG. 5, the internal clock / server time storage unit 15 stores the internal time and the server time in correspondence with the number of accesses. That is, the inquiry time IT1-1, the internal time IT2-1 at the time of acquisition, and the server time ST1 are stored for the first access. Similarly, the inquiry time IT1-2, the internal time IT2-2 at the time of acquisition, and the server time ST2 are stored for the second access. Inquiry time IT1-3, internal time IT2-3 at the time of acquisition, and server time ST3 are stored for the third access.

  When the internal time and server time for three times are acquired in the internal clock / server time storage unit 15, the shortest communication time determination unit 16 determines the shortest communication time DTmin from the internal time. That is, for each access, DT = (IT2-n)-(IT1-n) is calculated, and the DT having the minimum value is determined as the shortest communication time DTmin.

  Subsequently, the server time approximation unit 17 obtains the shortest communication time DTmin / 2 for the server time STn, and adds this to the server time STn for the same access count n to obtain the time T. The gap time GAP can be acquired by subtracting the internal time IT1-n of the same access count n from this time T.

The event time counter 19 adds the gap time GAP to the internal time IT obtained by measuring the internal clock 11 to obtain the event time, and realizes time synchronization with the server time ST timed by the IVT server clock 51. To do.

  The event time IVT timed by the event time counter 19 is a reference time for an event executed by each mobile phone, and is later treated as an event execution result, that is, an event information generation time. Since the event time IVT is approximated to the server time ST in each mobile phone, the reference time at the time of event execution between the mobile phones is almost the same.

  The event execution and event information communication unit 20 executes the event according to the event time IVT, and records the event information in association with the event time IVT in the event information recording unit 21.

  For example, when an event is executed by three mobile phones A, B, and C, as shown in FIGS. 6 (A), (B), and (C), information to be recorded is stored in the event information recording unit 21. It is possible to record the event time when it occurs in association with the information that has occurred. For example, FIG. 6A shows the event times 10:03, 10:12, 10:21... Corresponding to the information DA1, DA2, DA3. Is recorded.

  Similarly, FIG. 6B shows the event times corresponding to information DB1, DB2, DB3,... Generated during the event execution on the mobile phone B as 10:06, 10:12, 10:25,・ ・ Is recorded. In FIG. 6C, 10:06, 10:11, 10:20... Are recorded as event times corresponding to information DC1, DC2, DC3. Is done.

  The event execution and event information communication unit 20 transmits the event information recorded in the event information recording unit 21 to the server 5 during or after the event execution. In the server 5, the event information analysis unit 56 analyzes the event information collected by the event information collection unit 56 with reference to the server time ST, and supplies the analysis result to the event execution information supply unit 55. The event execution information supply unit 55 refers to the server time ST and supplies information for event execution to the event execution and event information communication unit 20 of the mobile phone 1.

  The event information collected by the event information collection unit 56 is recorded and managed as shown in FIG. Event information collected from each mobile phone A, B, C, etc. is recorded and managed in correspondence with the server time. For example, when the event starts at 10:00, the event information of each mobile phone A, B, and C is distributed every 1 minute after 10:00. In this way, it is possible to know the distribution of the occurrence time of event information at a certain time interval.

  As an event in the present embodiment, for example, a majority participation type role playing game in which server time is advanced as a reference time in the virtual space, for example, an event for recording / aggregating user operation time using server time as a reference time between mobile phones Etc.

Next, the operation will be described with reference to FIG. 8, FIG. 9, and FIG. FIG. 8 is a flowchart for explaining an example of operation during event processing between the mobile phone and the server in this embodiment, and FIG. 9 is a flowchart for explaining time synchronization processing between the mobile phone and the server in this embodiment. .

  First, in order to execute an event using a plurality of mobile phones, it is necessary to synchronize with the server time of the server 5. Since a wireless line is interposed between the mobile phone and the server 5, even if each mobile phone acquires the server time from the server 5, it is impossible to match the time completely. Therefore, the event time that is a reference at the time of an event in each mobile phone is dealt with by approximating the server time.

  When the mobile phone 1 is described as a representative, first, time synchronization processing is executed as advance preparation so that event processing can be started (step S11). At this time, in the server 5, the process which supplies server time corresponding to a time synchronous process is performed (step S21).

  In the mobile phone 1, when the time synchronization process in step S301 is completed, the event starts to be executed according to the event time synchronized with the server time (step S12). Until an event is executed in this way and ends (NO route of step S13), when event information to be recorded occurs (YES route of step S14), the event information is associated with the event time that is the synchronization time. Is recorded in the work area 109 of the RAM 108 (step S15).

  When the event ends (YES route in step S13), the event information recorded in the work area 109 is transmitted to the server 5 (step S16). At this time, the server 5 receives event information transmitted from each mobile phone and stores it in the work area 504 of the storage unit 503 (step S22). When handling a large amount of event information, a database may be prepared separately in place of the work area 504.

  Here, the time synchronization process (step S11) of the mobile phone 1 and the process (step S21) of the server 5 corresponding thereto will be described in detail (see FIG. 9). First, n (n is a natural number) of the number of accesses in the mobile phone 1 is set to 1 (step S101). Then, an inquiry about the server time is executed from the mobile phone 1 to the server 5 (step S102).

  On the other hand, the server 5 receives the time inquiry (step S201), reads the server time ST1 at the time of inquiry from the server clock 51 (step S20), and the read server time ST1 is the mobile phone of the inquiry source. It is transmitted to the telephone 1 (step S203).

  In the mobile phone 1, the internal time at the time of inquiry is read by the internal clock 11, and the internal time is stored in the work area 109 as IT1-1 (step S103). When the server time ST1 is received from the server 5, the server time ST1 is stored corresponding to the internal time IT1-1 as the first access (step S104).

  Also, the internal time IT12-1 when the server time ST1 is received from the server 5 is read from the internal clock 11 and stored in association with the first access (step S105).

  Then, it is determined whether or not the number of accesses has reached 3 (N = 3) (step S106). If not reached, n is incremented by one (step S107). Thereafter, the process returns to step S102, and the above-described process is repeatedly executed.

  When the number of accesses reaches 3 (N = 3) (step S106), the shortest time DTmin of the communication round trip time at each access is calculated and stored (step S108). Then, the shortest time DTmin is divided by 2, and the server time acquired at the time of the access is added to the result to obtain time T (step S109).

  Subsequently, the internal time IT1 at the time of the access is subtracted from the time T to obtain the gap time GAP (step S110), and the gap GAP is stored in the RAM 109 (step S111). When the event is started, the gap time GAP is added to the real time internal time IT, and the result is used as the event time IVT in step S15 (see FIG. 8).

  As described above, according to the present embodiment, paying attention to the delay of the communication line between the mobile phone and the server, the server time supplied from the server as the reference time between the plurality of mobile phones, Since it is obtained by approximating the server time based on the internal time and the delay time, it becomes possible to measure the time that is close to the time supplied from the server in the mobile phone with high accuracy. As a result, it is possible to record the occurrence time of the event information recorded by each mobile phone with high accuracy at almost the same time. Further, in the server, it is possible to collect event information from a plurality of mobile phones according to the event time approximated to the server time with high accuracy.

  In this embodiment, a mobile communication network is taken as an example of a network system with a slow communication line. However, the present invention is not limited to this and can be applied to a system such as ADSL. Needless to say.

The present invention is used in industries that manufacture time synchronization control devices, time synchronization control methods, time synchronization control programs, event control systems, event control methods, and event control programs.

It is the schematic which shows the time synchronization system by one embodiment of this invention. It is a block diagram which shows the example of an internal structure of the mobile telephone by this Embodiment.

It is a block diagram which shows the internal structural example of the server by this Embodiment. It is a block diagram explaining the function of the time synchronization system by this Embodiment.

It is a figure explaining the content memorize | stored by the mobile telephone side by this Embodiment. It is a figure explaining the content memorize | stored by the mobile telephone side by this Embodiment.

It is a figure explaining the content memorize | stored by the server side by this Embodiment. It is a flowchart explaining the operation example at the time of the event process between a mobile telephone and a server in this Embodiment.

It is a flowchart explaining the time synchronous process between a mobile telephone and a server in this Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cellular phone 5 Server 11 Internal clock 12 Server time acquisition control part 13 Server time inquiry part 14 Server time reception part 15 Internal time and server time storage part 16 Shortest communication time determination part 17 Server time approximation part 18 Gap acquisition part 19 Event time Timekeeping unit 20 Event execution and event information communication unit 21 Event information recording unit 51 Server clock 52 Server time inquiry reception unit 53 Server time reading unit 54 Server time transmission unit 55 Event execution information supply unit 56 Event information collection unit 57 Event information analysis unit 102 communication processing unit 106 CPU
107 ROM
108 RAM
109 Work Area 110 Key Group 111 Display 501 Communication Control Unit 502 Control Unit 503 Storage Unit 504 Work Area MAP Application SAP Application

Claims (15)

A time synchronization control device,
A time measuring means for measuring the internal time;
Server time acquisition means for executing a plurality of accesses to a predetermined server via a network and acquiring a server time counted by the predetermined server for each access;
With reference to the internal time measured by the time measuring means, the first internal time when the predetermined server is accessed and the second internal when the server time is acquired by the server time acquisition means for each access Internal time acquisition means for acquiring the time;
Storage means for storing the time acquired by the server time acquisition means and the internal time acquisition means for each access;
Shortest communication time determining means for determining the shortest communication time for accessing the predetermined server based on the first internal time and the second internal time stored in the storage means among the plurality of accesses;
Based on the shortest communication time determined by the shortest communication time determining means and the server time stored in the storage means and the determined shortest communication time and the server time at the time of access, an approximate time of the server time is obtained. A server time approximation means to obtain;
A gap acquisition means for acquiring a gap time by subtracting the first internal time stored in the storage means at the same time as the recent time from the recent time acquired by the server time approximation means;
Synchronous time measuring means for adding the gap time acquired by the gap acquiring means to the internal time measured by the time measuring means and measuring the synchronous time of the server time;
A time synchronization control device comprising: An execution means for executing the event;
Time recording means for recording the time to be recorded in the event executed by the execution means at the synchronous time measured by the synchronous time counting means;
The time synchronization control apparatus according to claim 1, further comprising: The time synchronization control apparatus according to claim 2, further comprising a time transmission unit that transmits the time recorded by the time recording unit to the predetermined server at an arbitrary timing. A time synchronization control method,
A first step of executing a plurality of accesses to a predetermined server via a network, and acquiring a server time counted by the predetermined server for each access;
With reference to the internal time measured by the time measuring means, for each access, a first internal time when the predetermined server is accessed and a second internal time when the server time is acquired in the first step A second step of obtaining
A third step of storing the times acquired in the first step and the second step for each access;
A fourth step of determining a shortest communication time when accessing the predetermined server based on the first internal time and the second internal time stored in the third step among the plurality of accesses;
Based on the shortest communication time determined in the fourth step and the server time stored in the third step and the determined shortest communication time and the server time at the time of access, an approximate time of the server time is acquired. The fifth step;
A sixth step of obtaining a gap time by subtracting the first internal time stored in the third step at the same access time from the recent time obtained in the fifth step;
A seventh step of measuring the synchronization time of the server time by adding the gap time acquired in the sixth step to the internal time measured by the time measuring means;
A time synchronization control method comprising: An eighth step of executing the event;
An eighth step of recording a time to be recorded in the event executed in the eighth step at a synchronous time counted in the seventh step, and transmitting the recorded time to the predetermined server at an arbitrary timing; The time synchronization control method according to claim 4, further comprising: A time synchronization control program executable by a terminal computer,
In the computer,
A first step of executing a plurality of accesses to a predetermined server via a network, and acquiring a server time counted by the predetermined server for each access;
With reference to the internal time measured by the time measuring means, for each access, a first internal time when the predetermined server is accessed and a second internal time when the server time is acquired in the first step A second step of obtaining
A third step of storing the times acquired in the first step and the second step for each access;
A fourth step of determining a shortest communication time when accessing the predetermined server based on the first internal time and the second internal time stored in the third step among the plurality of accesses;
Based on the shortest communication time determined in the fourth step and the server time stored in the third step and the determined shortest communication time and the server time at the time of access, an approximate time of the server time is acquired. The fifth step;
A sixth step of obtaining a gap time by subtracting the first internal time stored in the third step at the same access time from the recent time obtained in the fifth step;
A seventh step of measuring the synchronization time of the server time by adding the gap time acquired in the sixth step to the internal time measured by the time measuring means;
A time synchronization control program characterized in that An eighth step of executing the event;
An eighth step of recording a time to be recorded in the event executed in the eighth step at a synchronous time counted in the seventh step, and transmitting the recorded time to the predetermined server at an arbitrary timing; The time synchronization control program according to claim 6, further executed. An event control system for managing event progress by connecting to a terminal via a network,
Event control means for controlling the progress of the event while intermittently communicating with the terminal via the network;
A time measuring means for measuring an event time used in the event;
Server time supply means for supplying an event time measured by the time measuring means when an event time is requested from a terminal via the network;
Collecting means for collecting information recorded according to the event time from the terminal;
An event control system comprising: 9. The event control system according to claim 8, wherein the collection unit is one in which the server itself actively collects or actively collects from the terminal. 10. The event control system according to claim 8, wherein the event control unit controls an event for a plurality of terminals registered in advance. The event control system according to claim 8, 9 or 10, wherein the event control means controls the progress of a multiplayer game. An event control method for managing event progress by connecting to a terminal via a network,
A first step of controlling the progress of the event while intermittently communicating with the terminal via the network;
A second step of measuring the event time used in the event;
A third step of supplying an event time measured in the second step when an event time is requested from a terminal via the network;
A fourth step of collecting information recorded according to the event time from the terminal;
The event control method characterized by including. An event control program executed by a computer of a server that manages event progress by connecting to a terminal via a network,
In the computer,
A first step of controlling the progress of the event while intermittently communicating with the terminal via the network;
A second step of measuring the event time used in the event;
A third step of supplying an event time measured in the second step when an event time is requested from a terminal via the network;
A fourth step of collecting information recorded according to the event time from the terminal;
An event control program characterized in that An event control system for managing event progress by connecting a server and a terminal via a network,
In the server,
Event information supply means for supplying information necessary for the progress of the event while performing communication in response to a request from the terminal via the network;
A server timing means for timing the server time;
Server time supply means for supplying a server time measured by the server time measuring means when a server time is requested from a terminal via the network;
Collection means for collecting information generated by combining the information generated in the event and the time at which the information was recorded from the terminal;
With
In the terminal,
An internal time measuring means for measuring the internal time;
Event execution means for executing an event according to the information supplied by the event information supply means;
A recent time which is made close to the server time based on the server time supplied by the server time supply means and the communication time obtained based on the internal time measuring means until the server time is requested and received. A timekeeping means for measuring a recent time;
Information recording means for recording information generated by the event execution means corresponding to the approximate time measured by the approximate time counting means;
Information transmitting means for transmitting information that is a combination of the information recorded by the information recording means and the time when the information was recorded for collection by the collecting means;
An event control system comprising: The event control system according to claim 14, wherein the event execution unit executes an event during non-communication with the server.

Images