JP6233008B2 - Data collection system and data collection method - Google Patents

Description

  The present invention relates to a data collection system and a data collection method.

  In a data collection system that collects data from a large number of terminal devices in a data collection device such as a server, in order to reduce the load on the data collection device, avoid simultaneous transmission of data from multiple terminals to the data collection device Is required.

  In Patent Literature 1, the center 10 transmits in advance to each terminal device 30 distributed information and a designated communication time that designate one of a plurality of types of delay times according to the amount of data distributed to each terminal device 30. Each terminal device 30 exchanges data with the center 10 at a time later than the designated communication time by a delay time determined based on the shared information transmitted to the terminal device 30. A technique for avoiding simultaneous data exchange with the terminal device 30 is disclosed.

  As a related technique, Patent Document 2 discloses a technique in which the wireless terminal 1 performs communication by selecting a time zone with a low degree of congestion (for example, a low call loss rate and a high throughput).

  Further, in Patent Document 3, when the call quality is lowered during a call with the general telephone 19 using one of the telephone functions of the mobile terminal device 10 having the PHS telephone function and the mobile telephone function, a wireless communication network and A technique for switching own device 10 to the other telephone function is disclosed.

Japanese Patent Laid-Open No. 8-018581 JP2013-214873A JP 2001-128240 A

  However, the technique described in Patent Document 1 has a problem in that if the amount of data to be distributed is not known in advance, the delay time for each terminal for distributing the data transfer time cannot be determined.

  Note that the techniques described in Patent Documents 2 and 3 do not describe any technique for avoiding simultaneous reception of a large number of data by a data collection device or the like.

  An object of the present invention is to provide a data collection system and a data collection method that solve the above-described problems.

The first data collection system of the present invention includes:
First and second terminals respectively assigned first and second terminal identification information;
A data collection device for receiving transmission data signals from the first and second terminals,
The data collection device includes:
Clock means for outputting the current time;
Delay time storage means for storing the first terminal identification information and the first next delay time information in association with each other, and storing the second terminal identification information and the second next delay time information in association with each other When,
Including device control means,
The device control means includes
The first transmission indicated by the first transmission start time information included in the transmission data signal from the time output by the clock means when the reception of the transmission data signal including the first terminal identification information is completed. Information indicating the time obtained by adding the time indicated by the first next delay time information stored in the delay time storage means to the time equal to or longer than the time obtained by subtracting the start time is used as the second next delay time information. A delay time update process stored in the delay time storage means;
The first notification signal including the first next delay time information stored in the delay time storage means and the first terminal identification information is transmitted, and the second notification signal stored in the delay time storage means Processing for transmitting a second notification signal including the next delay time information and the second terminal identification information, and the first next delay time information stored in the delay time storage means and the first The terminal identification information is included in association with each other, and a third notification signal including the second next delay time information stored in the delay time storage unit and the second terminal identification information in association with each other is transmitted. A notification signal transmission process including any one of the processes to be performed, and
The first terminal is
First terminal control means;
First data collection start time storage means for storing data collection start time information indicating the data collection start time;
First transmission start time storage means;
First transmission data storage means;
Including first time monitoring means,
The first terminal control means includes:
When the first notification signal is received, at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage means, Storing the first transmission start time information indicating the first transmission start time to which the time indicated by the first next delay time information included is added in the first transmission start time storage unit, When the third notification signal is received, at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage means, The first transmission start time information indicating the first transmission start time obtained by adding the time indicated by the first next delay time information included in association with the first terminal identification information is the first transmission start time information. Transmission start time A first transmission start time storage processing of storing in 憶 means,
When the first time monitoring means detects that the time indicated by the first transmission start time information stored in the first transmission start time storage means has arrived, the first transmission data storage means Performing a first data transmission process for transmitting the transmission data signal including the data stored in the data, the first terminal identification information, and the first transmission start time information to the data collection device,
The second terminal is
A second terminal control means;
Second data collection start time storage means for storing the data collection start time information;
Second transmission start time storage means;
Second transmission data storage means;
A second time monitoring means,
The second terminal control means includes:
When the second notification signal is received, at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means, Second transmission start time information indicating a second transmission start time including a time indicated by the second next delay time information included is stored in the second transmission start time storage unit, When the third notification signal is received, the third notification signal is added to the third notification signal at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means. Second transmission start time information indicating a second transmission start time obtained by adding a time indicated by the second next delay time information included in association with the second terminal identification information. Store in storage A second transmission start time storage processing,
When the second time monitoring means detects that the time indicated by the second transmission start time information stored in the second transmission start time storage means has arrived, the second transmission data storage means And a second data transmission process for transmitting the transmission data signal including the data stored in the data collection device, the second terminal identification information, and the second transmission start time information to the data collection device.

The second data collection system of the present invention is
First and second terminals respectively assigned first and second terminal identification information;
A data collection device for receiving transmission data signals from the first and second terminals,
The data collection device includes:
Clock means for outputting the current time;
Data collection start time information indicating data collection start time is stored, and the first terminal identification information and the first next delay time information are stored in association with each other, and the second terminal identification information A delay time storage means for storing the second next delay time information in association with each other;
Including device control means,
The device control means includes
The time indicated by the data collection start time information stored in the delay time storage means from the time output by the clock means when reception of the transmission data signal including the first terminal identification information is completed. Stored in the delay time storage means at a time equal to or greater than the time obtained by adding the time indicated by the first next delay time information stored in the delay time storage means to the data collection start time. A delay time update process for storing, in the delay time storage means, information indicating a time obtained by adding the time indicated by the first next delay time information as the second next delay time information;
The first notification signal including the first next delay time information stored in the delay time storage means and the first terminal identification information is transmitted, and the second notification signal stored in the delay time storage means Processing for transmitting a second notification signal including the next delay time information and the second terminal identification information, and the first next delay time information stored in the delay time storage means and the first The terminal identification information is included in association with each other, and a third notification signal including the second next delay time information stored in the delay time storage unit and the second terminal identification information in association with each other is transmitted. A notification signal transmission process including any one of the processes to be performed, and
The first terminal is
First terminal control means;
First data collection start time storage means for storing the data collection start time information;
First transmission start time storage means;
First transmission data storage means;
Including first time monitoring means,
The first terminal control means includes:
When the first notification signal is received, at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage means, Storing the first transmission start time information indicating the first transmission start time to which the time indicated by the first next delay time information included is added in the first transmission start time storage unit, When the third notification signal is received, the time indicated by the first next delay time information included in association with the first terminal identification information is added to the third notification signal. A first transmission start time storage process for storing the first transmission start time information indicating the first transmission start time in the first transmission start time storage means;
When the first time monitoring means detects that the time indicated by the first transmission start time information stored in the first transmission start time storage means has arrived, the first transmission data storage means And a first data transmission process for transmitting the transmission data signal including the data stored in the first terminal identification information to the data collection device,
The second terminal is
A second terminal control means;
Second data collection start time storage means for storing the data collection start time information;
Second transmission start time storage means;
Second transmission data storage means;
A second time monitoring means,
The second terminal control means includes:
When the second notification signal is received, at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means, Second transmission start time information indicating a second transmission start time including a time indicated by the second next delay time information included is stored in the second transmission start time storage unit, When the third notification signal is received, the third notification signal is added to the third notification signal at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means. Second transmission start time information indicating a second transmission start time obtained by adding a time indicated by the second next delay time information included in association with the second terminal identification information. Store in storage A second transmission start time storage processing,
When the second time monitoring means detects that the time indicated by the second transmission start time information stored in the second transmission start time storage means has arrived, the second transmission data storage means And a second data transmission process for transmitting the transmission data signal including the data stored in the second terminal identification information to the data collection device.

The third data collection system of the present invention is
First and second terminals respectively assigned first and second terminal identification information;
A data collection device for receiving transmission data signals from the first and second terminals,
The data collection device includes:
Clock means for outputting the current time;
The first terminal identification information and the first next transmission start time information are stored in association with each other, and the second terminal identification information and the second next transmission start time information are stored in association with each other. Time storage means;
Including device control means,
The device control means includes
Indicated by the first next transmission start time information stored in the transmission start time storage means from the time output by the clock means when reception of the transmission data signal including the first terminal identification information is completed. Information indicating a time obtained by adding a time equal to or longer than a time obtained by subtracting the first transmission start time to the time indicated by the first next transmission start time information stored in the transmission start time storage means. Transmission start time update processing stored in the transmission start time storage means as next transmission start time information of 2;
The first notification signal including the first next transmission start time information and the first terminal identification information stored in the transmission start time storage unit is transmitted and stored in the transmission start time storage unit A process of transmitting a second notification signal including the second next transmission start time information and the second terminal identification information, and the first next transmission start time stored in the transmission start time storage means Information and the first terminal identification information are included in association with each other, and the second next transmission start time information stored in the transmission start time storage means and the second terminal identification information are included in association with each other. A notification signal transmission process including any one of the processes of transmitting the third notification signal,
The first terminal is
First terminal control means;
First transmission start time storage means;
First transmission data storage means;
Including first time monitoring means,
The first terminal control means includes:
When the first notification signal is received, the first next transmission start time information included in the first notification signal is stored in the first transmission start time storage unit, while the third When the notification signal is received, the first next transmission start time information included in the third notification signal in association with the first terminal identification information is stored in the first transmission start time storage unit. A first transmission start time storage process stored in
When the first time monitoring means detects that the time indicated by the first next transmission start time information stored in the first transmission start time storage means has arrived, the first transmission data storage Performing a first data transmission process of transmitting the transmission data signal including data stored in a means and the first terminal identification information to the data collection device;
The second terminal is
A second terminal control means;
Second transmission start time storage means;
Second transmission data storage means;
A second time monitoring means,
The second terminal control means includes:
If the second notification signal is received, the second next transmission start time information included in the second notification signal is stored in the second transmission start time storage means, while the third transmission signal is stored in the second transmission signal. When the notification signal is received, the second next transmission start time information included in the third notification signal in association with the second terminal identification information is stored in the second transmission start time storage means. A second transmission start time storing process stored in
When the second time monitoring means detects that the time indicated by the second next transmission start time information stored in the second transmission start time storage means has arrived, the second transmission data storage And a second data transmission process for transmitting the transmission data signal including the data stored in the means and the second terminal identification information to the data collection device.

The fourth data collection system of the present invention is
First and second terminals respectively assigned first and second terminal identification information;
A data collection device for receiving transmission data signals from the first and second terminals,
The data collection device includes:
Clock means for outputting the current time;
The first terminal identification information, the first cumulative transmission number information indicating the number of transmissions of the transmission data signal from the first terminal to the data collection device in the past, and the data collection from the past first terminal The first accumulated transmission time information indicating the accumulated transmission time obtained by accumulating the transmission time of the transmission data signal to the apparatus and the first next delay time information are stored in association with each other, and the second terminal identification information and Second cumulative transmission number information indicating the number of transmissions of the transmission data signal from the second terminal in the past to the data collection device and past transmission data signal from the second terminal to the data collection device. Delay time storage means for storing the second accumulated transmission time information indicating the accumulated transmission time obtained by accumulating the transmission time and the second next delay time information in association with each other;
Including device control means,
The device control means includes
When the transmission data signal including the first terminal identification information is received, a new transmission obtained by adding 1 to the number of transmissions indicated by the first cumulative transmission number information stored in the delay time storage means The first cumulative transmission number information stored in the delay time storage means is updated with information indicating the number of times, and the clock means outputs when the transmission data signal including the first terminal identification information is received. The first cumulative transmission time information stored in the delay time storage means is a time obtained by subtracting the first transmission start time indicated by the first transmission start time information included in the transmission data signal The first accumulated transmission time information updated by updating the first accumulated transmission time information stored in the delay time storage means with information indicating a new accumulated transmission time added to the accumulated transmission time indicated by Indicated by The first next delay stored in the delay time storage means at a time equal to or greater than the average transmission time obtained by dividing the accumulated transmission time by the accumulated transmission count indicated by the updated first cumulative transmission count information. A delay time update process for storing information indicating a time obtained by adding the time indicated by the time information in the delay time storage means as the second next delay time information;
The first notification signal including the first next delay time information stored in the delay time storage means and the first terminal identification information is transmitted, and the second notification signal stored in the delay time storage means Processing for transmitting a second notification signal including the next delay time information and the second terminal identification information, and the first next delay time information stored in the delay time storage means and the first The terminal identification information is included in association with each other, and a third notification signal including the second next delay time information stored in the delay time storage unit and the second terminal identification information in association with each other is transmitted. A notification signal transmission process including any one of the processes to be performed, and
The first terminal is
First terminal control means;
First data collection start time storage means for storing data collection start time information indicating the data collection start time;
First transmission start time storage means;
First transmission data storage means;
Including first time monitoring means,
The first terminal control means includes:
When the first notification signal is received, at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage means, The first transmission start time information indicating the first transmission start time including the time indicated by the first next delay time information included is stored in the first transmission start time storage means, When the third notification signal is received, the third notification signal is added to the third notification signal at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage unit. The first transmission start time information indicating the first transmission start time added with the time indicated by the first next delay time information included in association with the terminal identification information of the first transmission. Start time storage means A first transmission start time storage process of storing,
When the first time monitoring means detects that the time indicated by the first transmission start time information stored in the first transmission start time storage means has arrived, the first transmission data storage means Performing a first data transmission process for transmitting the transmission data signal including the data stored in the data, the first terminal identification information, and the first transmission start time information to the data collection device,
The second terminal is
A second terminal control means;
Second data collection start time storage means for storing the data collection start time information;
Second transmission start time storage means;
Second transmission data storage means;
A second time monitoring means,
The second terminal control means includes:
When the second notification signal is received, at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means, Second transmission start time information indicating a second transmission start time including a time indicated by the second next delay time information included is stored in the second transmission start time storage unit, When the third notification signal is received, the third notification signal is added to the third notification signal at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means. Second transmission start time information indicating a second transmission start time obtained by adding a time indicated by the second next delay time information included in association with the second terminal identification information. Store in storage A second transmission start time storage processing,
When the second time monitoring means detects that the time indicated by the second transmission start time information stored in the second transmission start time storage means has arrived, the second transmission data storage means And a second data transmission process for transmitting the transmission data signal including the data stored in the data collection device, the second terminal identification information, and the second transmission start time information to the data collection device.

The fifth data collection system of the present invention is
First and second terminals respectively assigned first and second terminal identification information;
A data collection device for receiving transmission data signals from the first and second terminals,
The data collection device includes:
Clock means for outputting the current time;
Data collection start time information indicating data collection start time is stored, and the first terminal identification information and a first number of transmission times of the transmission data signal from the first terminal to the data collection device in the past are stored. First accumulated transmission time information and first next delay time information indicating accumulated transmission time information obtained by accumulating the transmission time of the transmission data signal from the first terminal to the data collection device in the past. And the second terminal identification information, the second cumulative transmission number information indicating the number of transmissions of the transmission data signal from the second terminal to the data collection device in the past, and the past Second accumulated transmission time information indicating accumulated transmission time obtained by accumulating transmission time of the transmission data signal from the second terminal to the data collection device and second next delay time information are stored in association with each other. And the delay time storage means,
Including device control means,
The device control means includes
When the transmission data signal including the first terminal identification information is received, a new transmission obtained by adding 1 to the number of transmissions indicated by the first cumulative transmission number information stored in the delay time storage means The first cumulative transmission number information stored in the delay time storage means is updated with information indicating the number of times, and the clock means outputs when the transmission data signal including the first terminal identification information is received. Indicated by the first next delay time information stored in the delay time storage means at the data collection start time indicated by the data collection start time information stored in the delay time storage means. Information indicating a new accumulated transmission time obtained by adding a time obtained by subtracting the time added to the accumulated transmission time indicated by the first accumulated transmission time information stored in the delay time storage means. The first accumulated transmission time information stored in the delay time storage means is updated, and the updated accumulated transmission time indicated by the updated first accumulated transmission time information is updated to the first accumulated transmission count. Information indicating a time obtained by adding a time indicated by the first next delay time information stored in the delay time storage means to a time equal to or longer than an average transmission time divided by the cumulative number of transmissions indicated by the information. A delay time update process stored in the delay time storage means as next delay time information of 2;
The first notification signal including the first next delay time information stored in the delay time storage means and the first terminal identification information is transmitted, and the second notification signal stored in the delay time storage means Processing for transmitting a second notification signal including the next delay time information and the second terminal identification information, and the first next delay time information stored in the delay time storage means and the first The terminal identification information is included in association with each other, and a third notification signal including the second next delay time information stored in the delay time storage unit and the second terminal identification information in association with each other is transmitted. A notification signal transmission process including any one of the processes to be performed, and
The first terminal is
First terminal control means;
First data collection start time storage means for storing data collection start time information indicating the data collection start time;
First transmission start time storage means;
First transmission data storage means;
Including first time monitoring means,
The first terminal control means includes:
When the first notification signal is received, at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage means, The first transmission start time information indicating the first transmission start time including the time indicated by the first next delay time information included is stored in the first transmission start time storage means, When the third notification signal is received, the third notification signal is added to the third notification signal at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage unit. The first transmission start time information indicating the first transmission start time added with the time indicated by the first next delay time information included in association with the terminal identification information of the first transmission. Start time storage means A first transmission start time storage process of storing,
When the first time monitoring means detects that the time indicated by the first transmission start time information stored in the first transmission start time storage means has arrived, the first transmission data storage means Performing a first data transmission process for transmitting the transmission data signal including the data stored in the first terminal identification information to the data collection device,
The second terminal is
A second terminal control means;
Second data collection start time storage means for storing the data collection start time information;
Second transmission start time storage means;
Second transmission data storage means;
A second time monitoring means,
The second terminal control means includes:
When the second notification signal is received, at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means, Second transmission start time information indicating a second transmission start time including a time indicated by the second next delay time information included is stored in the second transmission start time storage unit, When the third notification signal is received, the third notification signal is added to the third notification signal at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means. Second transmission start time information indicating a second transmission start time obtained by adding a time indicated by the second next delay time information included in association with the second terminal identification information. Store in storage A second transmission start time storage processing,
When the second time monitoring means detects that the time indicated by the second transmission start time information stored in the second transmission start time storage means has arrived, the second transmission data storage means And a second data transmission process for transmitting the transmission data signal including the data stored in the second terminal identification information to the data collection device.

The sixth data collection system of the present invention is
First and second terminals respectively assigned first and second terminal identification information;
A data collection device for receiving transmission data signals from the first and second terminals,
The data collection device includes:
Clock means for outputting the current time;
The first terminal identification information, the first cumulative transmission number information indicating the number of transmissions of the transmission data signal from the first terminal to the data collection device in the past, and the data collection from the past first terminal First accumulated transmission time information indicating accumulated transmission time obtained by accumulating transmission time of the transmission data signal to the apparatus and first next transmission start time information are stored in association with each other, and the second terminal identification information Second cumulative transmission number information indicating the number of transmissions of the transmission data signal from the second terminal to the data collection device in the past, and the transmission data signal from the second terminal to the data collection device in the past. Transmission start time storage means for storing the second accumulated transmission time information indicating the accumulated transmission time and the second next transmission start time information in association with each other,
Including device control means,
The device control means includes
When the transmission data signal including the first terminal identification information is received, a new value obtained by adding 1 to the transmission count indicated by the first cumulative transmission count information stored in the transmission start time storage means The clock means when the first cumulative transmission number information stored in the transmission start time storage means is updated with information indicating the number of transmissions and the transmission data signal including the first terminal identification information is received. A time obtained by subtracting the first transmission start time stored in the transmission start time storage unit from the output time is indicated by the first cumulative transmission time information stored in the transmission start time storage unit. The first cumulative transmission time information stored in the transmission start time storage means is updated with information indicating a new cumulative transmission time added to the cumulative transmission time, and is indicated by the updated first cumulative transmission time information. Is The first transmission start stored in the transmission start time storage means is a time equal to or longer than the average transmission time obtained by dividing the cumulative transmission time by the cumulative transmission count indicated by the updated first cumulative transmission count information. A transmission start time update process for storing information indicating a time added to the time indicated by the time information in the transmission start time storage unit as the second next transmission start time information;
The first notification signal including the first next transmission start time information and the first terminal identification information stored in the transmission start time storage unit is transmitted and stored in the transmission start time storage unit A process of transmitting a second notification signal including the second next transmission start time information and the second terminal identification information, and the first next transmission start time stored in the transmission start time storage means Information and the first terminal identification information are included in association with each other, and the second next transmission start time information stored in the transmission start time storage means and the second terminal identification information are included in association with each other. A notification signal transmission process including any one of the processes of transmitting the third notification signal,
The first terminal is
First terminal control means;
First transmission start time storage means;
First transmission data storage means;
Including first time monitoring means,
The first terminal control means includes:
When the first notification signal is received, the first next transmission start time information included in the first notification signal is stored in the first transmission start time storage unit, while the third When the notification signal is received, the first next transmission start time information included in the third notification signal in association with the first terminal identification information is stored in the first transmission start time storage unit. A first transmission start time storage process stored in
When the first time monitoring means detects that the time indicated by the first next transmission start time information stored in the first transmission start time storage means has arrived, the first transmission data storage Performing a first data transmission process of transmitting the transmission data signal including data stored in a means and the first terminal identification information to the data collection device;
The second terminal is
A second terminal control means;
Second transmission start time storage means;
Second transmission data storage means;
A second time monitoring means,
The second terminal control means includes:
If the second notification signal is received, the second next transmission start time information included in the second notification signal is stored in the second transmission start time storage means, while the third transmission signal is stored in the second transmission signal. When the notification signal is received, the second next transmission start time information included in the third notification signal in association with the second terminal identification information is stored in the second transmission start time storage means. A second transmission start time storing process stored in
When the second time monitoring means detects that the time indicated by the second next transmission start time information stored in the second transmission start time storage means has arrived, the second transmission data storage And a second data transmission process for transmitting the transmission data signal including the data stored in the means and the second terminal identification information to the data collection device.

The first data collection method of the present invention is as follows.
The first terminal identification information assigned to the first terminal is stored in association with the first next delay time information, and the second terminal identification information assigned to the second terminal and the second next time are stored. In the data collection device having the delay time storage means that stores the delay time information in association with each other, the first data included in the transmission data signal from the time when the reception of the transmission data signal including the first terminal identification information is completed. A time obtained by adding a time indicated by the first next delay time information stored in the delay time storage means to a time equal to or longer than a time obtained by subtracting the first transmission start time indicated by the transmission start time information. A delay time update step of storing information in the delay time storage means as the second next delay time information;
A first notification signal including the first next delay time information stored in the delay time storage means and the first terminal identification information is transmitted from the data collection device and stored in the delay time storage means Transmitting from the data collection device a second notification signal including the second next delay time information and the second terminal identification information, and the first time stored in the delay time storage means The next delay time information and the first terminal identification information are included in association with each other, and the second next delay time information stored in the delay time storage means and the second terminal identification information are associated with each other. A notification signal transmission step including any one of the steps of transmitting the third notification signal included from the data collection device;
When the first terminal receives the first notification signal, the data indicated by the data collection start time information stored in the first data collection start time storage means provided in the first terminal The first transmission start time information indicating the first transmission start time obtained by adding the time indicated by the first next delay time information included in the first notification signal to the collection start time is the first transmission start time information. Is stored in the first transmission start time storage means provided in the terminal, and when the first terminal receives the third notification signal, the first data collection start time storage means The first next delay time information included in the third notification signal in association with the first terminal identification information at the data collection start time indicated by the stored data collection start time information. The first time added A first transmission start time storing step of storing the first transmission start time information indicating the signal start time to the first transmission start time storing means,
When the first terminal detects that the time indicated by the first transmission start time information stored in the first transmission start time storage means has arrived, the first terminal provided in the first terminal A first data transmission step of transmitting the transmission data signal including data stored in one transmission data storage means, the first terminal identification information, and the first transmission start time information to the data collection device; And when the second terminal receives the second notification signal, it is indicated by the data collection start time information stored in the second data collection start time storage means provided in the second terminal. Second transmission start time information indicating a second transmission start time obtained by adding a time indicated by the second next delay time information included in the second notification signal to the data collection start time. Provided in 2 terminals Stored in the second transmission start time storage means, and when the second terminal receives the third notification signal, the second data collection start time storage means stores the The time indicated by the second next delay time information included in the third notification signal in association with the second terminal identification information is added to the data collection start time indicated by the data collection start time information. A second transmission start time storage step of storing the second transmission start time information indicating the second transmission start time in the second transmission start time storage means;
When the second terminal detects that the time indicated by the second transmission start time information stored in the second transmission start time storage means has arrived, the second terminal provided in the second terminal A second data transmission step of transmitting the transmission data signal including the data stored in the second transmission data storage means, the second terminal identification information, and the second transmission start time information to the data collection device; Includes and.

Moreover, the second data collection method of the present invention includes:
The first terminal identification information assigned to the first terminal is stored in association with the first next transmission start time information, and the second terminal identification information assigned to the second terminal and the second In the data collection device including the transmission start time storage means for storing the next transmission start time information in association with each other, the transmission start time is determined from the time when reception of the transmission data signal including the first terminal identification information is completed. The first next transmission stored in the transmission start time storage means is equal to or longer than the time obtained by subtracting the first transmission start time indicated by the first next transmission start time information stored in the storage means. A transmission start time update step of storing information indicating a time added to the time indicated by the start time information in the transmission start time storage means as the second next transmission start time information;
A first notification signal including the first next transmission start time information and the first terminal identification information stored in the transmission start time storage unit is transmitted from the data collection device, and the transmission start time storage is stored. Transmitting the second notification signal including the second next transmission start time information and the second terminal identification information stored in the means from the data collection device, and storing in the transmission start time storage means The first next transmission start time information and the first terminal identification information are included in association with each other, and the second next transmission start time information stored in the transmission start time storage means and the second A notification signal transmission step consisting of any one of the steps of transmitting a third notification signal including the terminal identification information in association with the data collection device;
When the first terminal receives the first notification signal, the first next transmission start time information included in the first notification signal is provided in the first terminal. Stored in the transmission start time storage means, and when the first terminal receives the third notification signal, the third notification signal is included in association with the first terminal identification information. A first transmission start time storage step of storing the first next transmission start time information to be stored in the first transmission start time storage means;
Provided in the first terminal when the first terminal detects that the time indicated by the first next transmission start time information stored in the first transmission start time storage means has arrived A first data transmission step of transmitting the transmission data signal including the data stored in the first transmission data storage means and the first terminal identification information to the data collection device;
When the second terminal receives the second notification signal, the second next transmission start time information included in the second notification signal is provided in the second terminal. When the second terminal receives the third notification signal, it is stored in the third notification signal in association with the second terminal identification information. A second transmission start time storage step for storing the second next transmission start time information to be stored in the second transmission start time storage means;
Provided in the second terminal when the second terminal detects that the time indicated by the second next transmission start time information stored in the second transmission start time storage means has arrived And a second data transmission step of transmitting the transmission data signal including the data stored in the second transmission data storage means and the second terminal identification information to the data collection device.

The third data collection method of the present invention is as follows.
The first terminal identification information assigned to the first terminal, the first cumulative transmission number information indicating the number of transmissions of transmission data signals from the first terminal to the data collection device in the past, and the past first The first accumulated transmission time information indicating the accumulated transmission time obtained by accumulating the transmission time of the transmission data signal from the terminal to the data collection device and the first next delay time information are stored in association with each other, and the second Second terminal identification information assigned to the terminal, second cumulative transmission number information indicating the number of transmissions of the transmission data signal from the second terminal to the data collection device in the past, and the second terminal in the past Delay time storage means for storing second accumulated transmission time information indicating accumulated transmission time accumulated from the transmission time of the transmission data signal to the data collection device in association with second next delay time information Previous In the data collection device, when the transmission data signal including the first terminal identification information is received, the number of transmissions indicated by the first cumulative transmission number information stored in the delay time storage unit is 1 From the time when the transmission data signal including the first terminal identification information is received by updating the first cumulative transmission number information stored in the delay time storage means with information indicating the new transmission number to which The time obtained by subtracting the first transmission start time indicated by the first transmission start time information included in the transmission data signal is the accumulation indicated by the first accumulated transmission time information stored in the delay time storage means. The first cumulative transmission time information stored in the delay time storage means is updated with information indicating a new cumulative transmission time added to the transmission time, and is indicated by the updated first cumulative transmission time information. The first next delay time stored in the delay time storage means at a time equal to or greater than the average transmission time obtained by dividing the product transmission time by the cumulative transmission count indicated by the updated first cumulative transmission count information. A delay time update step of storing information indicating a time obtained by adding the time indicated by the information in the delay time storage means as the second next delay time information;
A first notification signal including the first next delay time information stored in the delay time storage means and the first terminal identification information is transmitted from the data collection device and stored in the delay time storage means Transmitting from the data collection device a second notification signal including the second next delay time information and the second terminal identification information, and the first time stored in the delay time storage means The next delay time information and the first terminal identification information are included in association with each other, and the second next delay time information stored in the delay time storage means and the second terminal identification information are associated with each other. A notification signal transmission step including any one of the steps of transmitting the third notification signal included from the data collection device;
When the first terminal receives the first notification signal, the data indicated by the data collection start time information stored in the first data collection start time storage means provided in the first terminal First transmission start time information indicating a first transmission start time obtained by adding a time indicated by the first next delay time information included in the first notification signal to the collection start time is the first terminal. Is stored in the first transmission start time storage means, and when the first terminal receives the third notification signal, it is stored in the first data collection start time storage means. The time indicated by the first next delay time information included in the third notification signal in association with the first terminal identification information at the data collection start time indicated by the data collection start time information. The first transmission starts with A first transmission start time storing step of storing the first transmission start time information indicating the time to the first transmission start time storing means,
When the first terminal detects that the time indicated by the first transmission start time information stored in the first transmission start time storage means has arrived, the first terminal provided in the first terminal A first data transmission step of transmitting the transmission data signal including data stored in one transmission data storage means, the first terminal identification information, and the first transmission start time information to the data collection device; When,
When the second terminal receives the second notification signal, it is indicated by the data collection start time information stored in the second data collection start time storage means provided in the second terminal. Second transmission start time information indicating a second transmission start time obtained by adding a time indicated by the second next delay time information included in the second notification signal to the data collection start time is the second transmission start time information. Is stored in the second transmission start time storage means provided in the terminal of the second terminal, and when the second terminal receives the third notification signal, the second data collection start time storage means is stored in the second data collection start time storage means. Indicated at the second next delay time information included in the third notification signal in association with the second terminal identification information at the data collection start time indicated by the stored data collection start time information. The second time added A second transmission start time storing step of storing the second transmission start time information indicating the signal start time to said second transmission start time storing means,
When the second terminal detects that the time indicated by the second transmission start time information stored in the second transmission start time storage means has arrived, the second terminal provided in the second terminal A second data transmission step of transmitting the transmission data signal including the data stored in the second transmission data storage means, the second terminal identification information, and the second transmission start time information to the data collection device; Includes and.

The first data collection method of the present invention is as follows.
The first terminal identification information assigned to the first terminal, the first cumulative transmission number information indicating the number of transmissions of transmission data signals from the first terminal to the data collection device in the past, and the past first The first accumulated transmission time information indicating the accumulated transmission time obtained by accumulating the transmission time of the transmission data signal from the terminal to the data collection device is stored in association with the first next transmission start time information, and the second Second terminal identification information assigned to the terminal, second cumulative transmission number information indicating the number of transmissions of the transmission data signal from the second terminal to the data collection device, and the past second Transmission start time storage in which second accumulated transmission time information indicating accumulated transmission time accumulated from the transmission time of the transmission data signal from the terminal to the data collection device and second next transmission start time information are stored in association with each other. In the data collection device including a stage, when the transmission data signal including the first terminal identification information is received, it is indicated by the first cumulative transmission number information stored in the transmission start time storage unit The transmission data signal including the first terminal identification information by updating the first cumulative transmission number information stored in the transmission start time storage unit with information indicating a new transmission number obtained by adding 1 to the transmission number A time obtained by subtracting the first transmission start time stored in the transmission start time storage means from the time output by the clock means when the time is received is stored in the transmission start time storage means. Updating the first accumulated transmission time information stored in the transmission start time storage means with information indicating a new accumulated transmission time in addition to the accumulated transmission time indicated by the one accumulated transmission time information; The transmission start time storage stores a time equal to or greater than an average transmission time obtained by dividing the cumulative transmission time indicated by the first cumulative transmission time information by the cumulative transmission number indicated by the updated first cumulative transmission number information. Transmission start time time update that stores information indicating time added to the time indicated by the first transmission start time information stored in the means in the transmission start time storage means as the second next transmission start time information Steps,
A first notification signal including the first next transmission start time information and the first terminal identification information stored in the transmission start time storage unit is transmitted from the data collection device, and the transmission start time storage is stored. Transmitting the second notification signal including the second next transmission start time information and the second terminal identification information stored in the means from the data collection device, and storing in the transmission start time storage means The first next transmission start time information and the first terminal identification information are included in association with each other, and the second next transmission start time information stored in the transmission start time storage means and the second A notification signal transmission step comprising any one of the steps of transmitting a third notification signal including the terminal identification information in association with the data collection device;
When the first terminal receives the first notification signal, the first next transmission start time information included in the first notification signal is provided in the first terminal. Stored in the transmission start time storage means, and when the first terminal receives the third notification signal, the third notification signal is included in association with the first terminal identification information. A first transmission start time storage step of storing the first next transmission start time information to be stored in the first transmission start time storage means;
Provided in the first terminal when the first terminal detects that the time indicated by the first next transmission start time information stored in the first transmission start time storage means has arrived A first data transmission step of transmitting the transmission data signal including the data stored in the first transmission data storage means and the first terminal identification information to the data collection device;
When the second terminal receives the second notification signal, the second next transmission start time information included in the second notification signal is provided in the second terminal. When the second terminal receives the third notification signal, it is stored in the third notification signal in association with the second terminal identification information. A second transmission start time storage step for storing the second next transmission start time information to be stored in the second transmission start time storage means;
Provided in the second terminal when the second terminal detects that the time indicated by the second next transmission start time information stored in the second transmission start time storage means has arrived And a second data transmission step of transmitting the transmission data signal including the data stored in the second transmission data storage means and the second terminal identification information to the data collection device.

  The present invention has an effect that the server can avoid receiving transmission data signals from a plurality of terminals at the same time even if the amount of data transmitted from each terminal to the server is not known in advance.

It is a block diagram which shows embodiment of this invention. In 1st Embodiment, it is a figure which shows the content of the information table 19 after the server 2 receives the transmission data signal from each terminal 4. FIG. In the first embodiment, the contents of the information table 19 used when the server 2 side performs the process of obtaining the next transmission start time by adding the next delay time to the data collection start time performed on the terminal 4 side. FIG. In 2nd Embodiment, it is a figure which shows the content of the information table 20 after the server 2 receives the transmission data signal of the 1st time from each terminal 4. FIG. In 2nd Embodiment, it is a figure which shows the content of the information table 20 after the server 2 receives the transmission data signal of the 2nd time from each terminal 4. FIG. In the second embodiment, the contents of the information table 20 used when the next transmission start time is calculated on the server 2 side by adding the next delay time to the data collection start time performed on the terminal 4 side. FIG.

<First Embodiment>
First, the first embodiment of the present invention will be described in detail.

  FIG. 1 is a block diagram showing the first embodiment.

  The present embodiment includes a data collection system 1.

  The data collection system 1 includes a server 2 that is a data collection device, a plurality of terminals 4 each assigned unique identification information, and a wired or wireless communication network for performing communication between the server 2 and each terminal 4 3.

  The server 2 includes transmission / reception means 8, storage means 9, clock means 10, and control means 11.

  The transmission / reception means 8 exchanges signals with each terminal via the network 3.

  The clock means 10 outputs the current time.

  Each terminal 4 includes transmission / reception means 12, data collection start time storage means 13, transmission delay time storage means 14, transmission start time storage means 15, time monitoring means 16, control means 17, and transmission data storage means. 18 and so on.

  The transmission / reception means 12 exchanges signals with the server via the network 3.

  The data collection start time storage unit 13 stores data collection start time information indicating a data collection start time that is a time at which the server 2 starts collecting data from each terminal 4.

  The transmission delay time storage unit 14 stores transmission delay time information indicating the transmission delay time included in the notification signal transmitted from the server 2.

  The transmission start time storage means 15 is indicated by the transmission delay time information stored in the transmission delay time storage means 14 at the data collection start time indicated by the data collection start time information stored in the data collection start time storage means 13. Transmission start time information indicating the transmission start time obtained by adding the transmission delay time is stored.

  The time monitoring unit 16 monitors whether or not the transmission start time indicated by the transmission start time information stored in the transmission start time storage unit 15 has arrived.

  The transmission data storage unit 18 temporarily stores transmission data to the server 2.

  Next, the operation of this embodiment will be described.

  In the following description, the number of terminals 4 is three, and it is assumed that “terminal A”, “terminal B”, and “terminal C” are assigned to these three terminals 4 as terminal identification information, respectively. For convenience, these three terminals are referred to as “terminal A”, “terminal B”, and “terminal C”, which are the same as the terminal identification information assigned to them.

  FIG. 2 is a diagram showing the information table 19 stored in the storage unit 9 of the server 2.

  Referring to FIG. 2, the information table 19 includes a “terminal identification information” column, a “previous transmission time” column, and a “next delay time” column.

  In the “terminal identification information” column, terminal identification information “terminal A”, “terminal B”, and “terminal C” assigned to the three terminals are registered.

  The contents registered in the “previous transmission time” column and the “next delay time” column will be described in the following operation description.

  Now, the transmission start time storage means 15 of the terminals A, B and C indicate the transmission start times “0: 0: 0”, “0: 0: 30” and “0: 0: 8”, respectively. It is assumed that transmission start time information is stored, and the data collection start time storage means 13 stores data collection start time information indicating the data collection start time “0: 0: 0”.

  When the time monitoring unit 16 of the terminal A detects that the current time is the transmission start time “0: 0: 0” indicated by the transmission start time information stored in the transmission start time storage unit 15, The means 17 includes the transmission start time information, transmission data stored so far in the transmission data storage means 18 for transmission to the server 2, and terminal identification information “terminal A” assigned to the terminal A The transmission data signal is transmitted from the transmission / reception means 12 to the server 2 via the network 3.

  The server 2 receives the transmission data signal transmitted from the terminal A by the transmission / reception means 8, and the control means 11 determines that the transmission source of the transmission data signal is the terminal A from the terminal identification information included in the transmission data signal. Knowing that it exists, the transmission start time information included in the transmission data signal is temporarily stored in the storage means 9 as the transmission start time of the transmission data signal of the terminal A. Further, when the control means 11 detects the completion of reception of transmission data from the terminal A, the reception means indicating the reception completion time with the time output from the clock means 10 at that time as the reception completion time of transmission data of the terminal A. Completion time information is temporarily stored in the storage means 9.

  The control means 11 transmits the transmission data of the terminal A indicated by the transmission start time information stored in the storage means 9 from the reception completion time of the transmission data signal of the terminal A indicated by the reception completion time information stored in the storage means 9. The time obtained by subtracting the signal transmission start time, that is, the transmission time (here, 18 seconds) is calculated. After that, the control means 11 registers the transmission time “18” as the previous transmission time information in the previous transmission time column of the row in which the terminal identification information “terminal A” is registered in the terminal identification information column of the information table 19. Next delay time “00” is registered as next delay time information in the next delay time field.

  In the terminal B, the time monitoring unit 16 confirms that the current time is the transmission start time “0: 0: 30” indicated by the transmission start time information stored in the transmission start time storage unit 15. Upon detection, the control means 17 obtains the transmission start time information, the transmission data stored so far in the transmission data storage means 18 for transmission to the server 2, and the terminal identification information “terminal B” of the terminal B. The transmitted transmission data signal is transmitted from the transmission / reception means 12 to the server 2 via the network 3.

  The server 2 receives the transmission data signal transmitted from the terminal B by the transmission / reception unit 8, and the control unit 11 determines that the transmission source of the transmission data signal is the terminal B from the terminal identification information included in the transmission data signal. Knowing that it exists, the transmission start time information included in the transmission data signal is temporarily stored in the storage means 9 as the transmission start time of the transmission data signal of the terminal B. Further, when the control means 11 detects the completion of reception of the transmission data from the terminal B, the reception means indicating the reception completion time with the time output from the clock means 10 at that time as the reception completion time of the transmission data of the terminal B. Completion time information is temporarily stored in the storage means 9.

  The control means 11 transmits the transmission data of the terminal B indicated by the transmission start time information stored in the storage means 9 from the reception completion time of the transmission data signal of the terminal B indicated by the reception completion time information stored in the storage means 9. The time obtained by subtracting the signal transmission start time, that is, the transmission time (here, 21 seconds) is calculated. Thereafter, the control means 11 registers the transmission time “21” as the previous transmission time information in the previous transmission time column of the row in which the terminal identification information “terminal B” is registered in the terminal identification information column of the information table 19.

  Furthermore, the control means 11 registers “00” registered in the next delay time column of the row in which the terminal identification information “terminal A” is registered in the terminal identification information column of the information table 19 in the previous transmission time column of the same table. The terminal identification information “terminal B” is registered in the terminal identification information column by adding “36” obtained by adding “18” or more (here, “36”, which is a value obtained by doubling “18”). Register as next delay time information indicating the next delay time in the next delay time column of the row.

  In the terminal C, the time monitoring unit 16 confirms that the current time is the transmission start time “0: 0: 8” indicated by the transmission start time information stored in the transmission start time storage unit 15. Upon detection, the control means 17 sends the transmission start time information, the transmission data stored so far in the transmission data storage means 18 for transmission to the server 2, and the terminal identification information “terminal C” of the terminal C. The transmitted transmission data signal is transmitted from the transmission / reception means 12 to the server 2 via the network 3.

  The server 2 receives the transmission data signal transmitted from the terminal C by the transmission / reception means 8, and the control means 11 determines that the transmission source of the transmission data signal is the terminal C from the terminal identification information included in the transmission data signal. Knowing that it exists, the transmission start time information included in the transmission data signal is temporarily stored in the storage means 9 as the transmission start time of the transmission data signal of the terminal C. Further, when the control means 11 detects the reception completion of transmission data from the terminal C, the reception means indicating the reception completion time with the time output from the clock means 10 at that time as the reception completion time of transmission data of the terminal B. Completion time information is temporarily stored in the storage means 9.

  The control means 11 transmits the transmission data of the terminal B indicated by the transmission start time information stored in the storage means 9 from the reception completion time of the transmission data signal of the terminal C indicated by the reception completion time information stored in the storage means 9. A time obtained by subtracting the signal transmission start time, that is, a transmission time (here, 40 seconds) is calculated. Thereafter, the control means 11 registers the transmission time “40” as the previous transmission time information in the previous transmission time column of the row in which the terminal identification information “terminal C” is registered in the terminal identification information column of the information table 19.

  Further, the control means 11 registers “36” registered in the next delay time column of the row in which the terminal identification information “terminal B” is registered in the terminal identification information column of the information table 19 in the previous transmission time column of the same table. The terminal identification information “terminal C” is registered in the terminal identification information column with “78” obtained by adding the value of “21” or more (here, “42”, which is a value obtained by doubling “21”). Register as next delay time information indicating the next delay time in the next delay time column of the row.

  In this way, the server 2 sequentially receives transmission data signals from the plurality of terminals 4 and registers the previous transmission time information and the next delay time information in the information table 19 for each terminal.

  When the data collection from all the terminals 4 is completed, the server 2 for each terminal identification information registered in the terminal identification information column of the table 19 corresponds to the terminal identification information and the next delay time column corresponding to the terminal identification information. The notification signal including the next delay time information registered in (1) is transmitted to the network 3.

  When the transmission / reception means 12 of each terminal 4 checks the terminal identification information included in each notification signal transmitted from the server 2 via the network 3 and receives a notification signal including the terminal identification information assigned to the terminal itself The next delay time information included in the notification signal is passed to the control means 17.

  The control unit 17 stores the passed next delay time information in the transmission delay time storage unit 14. Further, the control unit 17 adds the next delay time indicated by the next delay time information stored in the transmission delay time storage unit 14 to the time stored in the data collection start time storage unit 13 to thereby determine the next transmission start time. And the transmission start time is stored in the transmission start time storage means 15.

  In this embodiment, the transmission / reception means 12 of the terminal A examines the terminal identification information included in each notification signal transmitted from the server 2 via the network 3 and the terminal identification information “terminal A” assigned to the own terminal. Is received, the next delay time information “00” included in the notification signal is passed to the control means 17.

  The control unit 17 stores the passed next delay time information “00” in the transmission delay time storage unit 14. Further, the control means 17 is stored in the transmission delay time storage means 14 at the data collection start time “0: 0: 0” indicated by the data collection start time information stored in the data collection start time storage means 13. The next transmission start time “0: 0: 0” is obtained by adding the next delay time “00” indicated by the next delay time information, and the transmission start time information indicating the transmission start time is transmitted to the transmission start time storage unit 15. To remember.

  Further, the transmission / reception means 12 of the terminal B examines the terminal identification information included in each notification signal transmitted from the server 2 via the network 3, and the notification including the terminal identification information “terminal B” assigned to the own terminal When the signal is received, the next delay time information “36” included in the notification signal is passed to the control means 17.

  The control means 17 stores the passed next delay time information “36” in the transmission delay time storage means 14. Further, the control means 17 is stored in the transmission delay time storage means 14 at the data collection start time “0: 0: 0” indicated by the data collection start time information stored in the data collection start time storage means 13. The next transmission start time “0: 0: 36” is obtained by adding the next delay time “36” indicated by the next delay time information, and the transmission start time information indicating the transmission start time is transmitted to the transmission start time storage unit 15. To remember.

  Further, the transmission / reception means 12 of the terminal C examines the terminal identification information included in each notification signal transmitted from the server 2 via the network 3, and the notification including the terminal identification information “terminal C” assigned to the own terminal When the signal is received, the next delay time information “78” included in the notification signal is passed to the control means 17.

  The control means 17 stores the passed next delay time information “78” in the transmission delay time storage means 14. Further, the control means 17 is stored in the transmission delay time storage means 14 at the data collection start time “0: 0: 0” indicated by the data collection start time information stored in the data collection start time storage means 13. The next transmission start time “0: 1: 18” is obtained by adding the next delay time “78” indicated by the next delay time information, and the transmission start time information indicating the transmission start time is transmitted to the transmission start time storage unit 15. To remember.

  Thus, as described above, when the transmission start time indicated by the transmission start time information stored in its own transmission start time storage unit 15 arrives, each terminal 4 transmits the transmission stored in its own transmission data storage unit 18. The transmission data signal including the data is transmitted to the server 2, and the server 2 sequentially receives the transmission data signal from all the terminals 4, and the contents of the previous transmission time column and the next delay time column of the table 19 corresponding to each terminal are displayed. Update and notify the corresponding terminal of the updated contents of the next delay time column.

  In the present embodiment, the transmission start time information is included in the transmission data signal transmitted from each terminal 4, but if the data collection start time information is stored in the storage means 9 on the server 2 side, the data Since the transmission start time of each terminal can be calculated from the data collection start time indicated by the collection start time information and the next delay time indicated by each next delay time information registered in the next delay time column of the information table 19, Thus, when the server 2 is configured to obtain the transmission start time of each terminal, it is not necessary to include the transmission start time information in the transmission data signal.

  In the present embodiment, the data collection start time information indicating the data collection start time “0: 0: 0” is fixedly stored in the data collection start time storage unit 13 of each terminal. Includes the data collection start time information indicating the desired data collection start time in the notification signal transmitted from the server 2, and stores the collection start time information included in the received notification signal in the data collection start time storage means of each terminal. 13 may be stored.

  In the present embodiment, the server 2 transmits the next delay time information to each terminal. However, the next transmission start time is obtained by adding the next delay time to the data collection start time performed on the terminal 4 side. Is included in the notification signal notified from the server 2 to each terminal, the transmission start time information indicating the transmission start time at the terminal, and each terminal is the own terminal included in the received notification signal. The transmission start time information indicating the transmission start time may be stored in the transmission start time storage means 15.

  In this case, it goes without saying that it is not necessary to provide each terminal 4 with the data collection start time storage means 13 and the transmission delay time storage means 14. In this case, instead of the next delay information column of the table 19, a next transmission start time column in which next transmission start time information indicating the next transmission start time of each terminal is registered as shown in FIG. . Furthermore, in this case, it is not necessary to include transmission start time information in the transmission data signal transmitted from each terminal 4 to the server 2.

  In this embodiment, a notification signal including the next delay time information for the terminal is sent to each terminal. However, the terminal identification information of each terminal and the next time for the terminal are sent to one notification signal. In association with the delay time information, each terminal 4 extracts the next delay time information included in the notification signal in association with the terminal identification information allocated to the own terminal included in the notification signal. You may do it.

  As described above, this embodiment has an effect that the server can avoid receiving transmission data signals from a plurality of terminals at the same time even if the amount of data transmitted from each terminal to the server is not known in advance.

  The reason is that the next transmission start time at each terminal is determined based on the time required for the last data transmission of each terminal so that the next data transmission of a plurality of terminals does not overlap.

<Second Embodiment>
Next, a second embodiment of the present invention will be described.

  The configuration of this embodiment is the same as that of the first embodiment shown in FIG. 1, but the next delay time or the next transmission time calculation method executed by the control means 11 of the server 2 is the same as that of the first embodiment. It is different.

  That is, in the first embodiment, the next delay time or the next transmission time is obtained for each terminal 4 based on the previous transmission time, whereas in the present embodiment, the past transmission time is obtained for each terminal 4. The next delay time or the next transmission time is obtained based on the average transmission time averaged.

  Hereinafter, a method for obtaining the average transmission time and the next delay time in the present embodiment will be described in detail.

  In the present embodiment, an information table 20 shown in FIG. 4 is stored in the storage unit 9 instead of the information table 19 shown in FIG.

  Referring to FIG. 4, the information table 20 includes a “terminal identification information” field in which terminal identification information assigned to each terminal is registered, and the number of transmission data signals transmitted from each terminal 4 to the server 2 in the past. The “accumulated transmission count” field in which cumulative transmission count information indicating a certain cumulative transmission count is registered, and the cumulative transmission time information indicating the cumulative transmission time in which the transmission time of the transmission data signal from each terminal 4 to the server 2 is accumulated. Is registered in the "cumulative transmission count" column of the corresponding row, and the cumulative transmission time indicated by the cumulative transmission time information registered in each row of the "cumulative transmission time" column The “average transmission time” field in which average transmission time information indicating the average transmission time obtained by dividing by the cumulative transmission number indicated in the cumulative transmission number information is registered, and next delay time information indicating the next delay time of each terminal Registered The consisting of a "next time delay time" column.

  The next delay time indicated by the next delay time information registered in the next delay time column of the table 20 is obtained based on the previous transmission time information registered in the previous transmission time column of the table 19 in the first embodiment. As will be described later, it is obtained based on the average transmission time information registered in the average transmission time column of the table 20 by a method similar to the method.

  Then, a notification signal including next delay time information indicating the corresponding next delay time is transmitted to each terminal 4 as in the first embodiment, and each terminal 4 that has received the notification signal receives the notification signal from the first embodiment. Similarly, based on the delay time information included in the notification signal, transmission start time information indicating the transmission start time that is the start time of transmission of the next transmission data signal is stored in the transmission start time storage unit 15.

  For example, the notification signals including the next delay time information indicating the next delay times “00”, “36”, and “78” registered in the next delay time column of the table 20 shown in FIG. And the data collection start time indicated by the data collection start time information stored in the data collection start time storage means 13 of the terminals A, B and C is “0: 0: 0” Similarly to the first embodiment, the transmission start time storage means 15 of the terminals A, B, and C store the transmission start times “0: 0: 0”, “0: 0: 36”, and “0 o'clock”, respectively. Transmission start time information indicating “1 minute 18 seconds” is stored.

  Thereafter, when the transmission start time indicated by the transmission start time information stored in the transmission start time storage unit 15 of each of the terminals A, B, and C arrives, the transmission data signal is transmitted as in the first embodiment. Transmission to the server 2 starts.

  When receiving the transmission data signal from each terminal 4, the control means 11 of the server 2 calculates each transmission time in the same manner as in the first embodiment.

  For example, it is assumed that the transmission times calculated for the terminals A, B, and C are 20 seconds, 18 seconds, and 38 seconds, respectively.

  In this case, the control means 11 of the server 2 presents the cumulative transmission count indicated by the cumulative transmission count information registered in the cumulative transmission count column of the row in which “terminal A” in the terminal identification information column of the table 20 is registered. Updated to “2” obtained by adding 1 to “1” of “1”, and “38” obtained by adding 20 to the current “18” to the accumulated transmission time indicated by the accumulated transmission time information registered in the accumulated transmission time column of the bank. The average transmission time indicated by the average transmission time information registered in the average transmission time column of the bank is changed from the current “18” to “19” (the updated cumulative transmission time “38” is updated). (The value divided by the cumulative transmission count “2”).

  Similarly, the control means 11 of the server 2 presents the cumulative transmission count indicated by the cumulative transmission count information registered in the cumulative transmission count column of the row in which “terminal B” of the terminal identification information column of the table 20 is registered. Updated to “2”, which is obtained by adding 1 to “1”, and the accumulated transmission time indicated by the accumulated transmission time information registered in the accumulated transmission time column of the bank is added to 18 by adding “18” to the current “21”. The average transmission time indicated by the average transmission time information registered in the average transmission time column of the bank is changed from the current “21” to “20” (the updated cumulative transmission time “39” is updated). Updated to the value “19.5” divided by the cumulative transmission count “2” rounded off), and the cumulative transmission count of the row in which “terminal C” in the terminal identification information column of the table 20 is registered It is indicated by the cumulative transmission count information registered in the column. The cumulative transmission count is updated to “2” obtained by adding 1 to the current “1”, and the cumulative transmission time indicated by the cumulative transmission time information registered in the accumulative transmission time column of the bank is set to the current “40”. Is updated to “78”, and the average transmission time indicated by the average transmission time information registered in the average transmission time column of the bank is changed from the current “40” to “39” (updated cumulative transmission time “78”). ”Is updated to the value obtained by dividing the cumulative transmission count“ 2 ”after the update).

  The contents of the table 20 updated as described above are shown in FIG.

  Note that the next delay time indicated by the next delay time information registered in the next delay time column of the table 20 is the average transmission in the same manner as that obtained based on the previous transmission time information in the first embodiment. Calculated based on time information.

  For example, the next delay time for the terminal B is the same as the average of “00” registered in the next delay time column of the row in which the terminal identification information “terminal A” is registered in the terminal identification information column of the table 20 of FIG. It is “38” obtained by adding a value equal to or greater than the average transmission time “19” registered in the transmission time column (here, “38”, which is a value obtained by doubling “19”), and this value “38” is the terminal. Registered in the next delay time column of the row in which “terminal B” in the identification information column is registered, and the next delay time for terminal C is that of the row in which the terminal identification information “terminal B” is registered in the terminal identification information column. A value equal to or more than the average transmission time “20” registered in the average transmission time column of the bank to “38” registered in the next delay time column (here, “40” is a value obtained by doubling “20”). Is added to “78”, and this value “78” is “78” in the terminal identification information column. End C "is registered in the next delay time section of the line that has been registered.

  Then, the control means 11 of the server 2 refers to this table 20 and transmits a notification signal including next delay time information indicating the corresponding next delay time to each terminal 4 as in the first embodiment, Each terminal 4 that has received the notification signal transmits a transmission start time, which is a transmission start time of the next transmission data signal, based on the delay time information included in the notification signal, as in the first embodiment. The start time information is stored in the transmission start time storage unit 15.

  As in the first embodiment, in this embodiment, the next delay time is added to the data collection start time performed on the terminal 4 side without transmitting the next delay time information from the server 2 to each terminal. Next, processing for obtaining the next transmission start time is performed on the server 2 side, and the notification signal notified from the server 2 to each terminal includes transmission start time information indicating the transmission start time at the terminal. The transmission start time information indicating the transmission start time at the own terminal included in the transmission start time storage means 15 may be stored. In this case, instead of the next delay information column of the table 20, a next transmission start time column in which next transmission start time information indicating the next transmission start time of each terminal is registered as shown in FIG.

  As described above, in this embodiment, as in the first embodiment, the server receives the transmission data signal from a plurality of terminals at the same time even if the amount of data transmitted from each terminal to the server is not known in advance. There is an effect that it can be avoided.

  The reason is that the next transmission start time at each terminal is determined so that the next data transmission of multiple terminals does not overlap based on the average time required for the previous data transmission of each terminal. It is.

DESCRIPTION OF SYMBOLS 1 Data collection system 2 Server 3 Communication network 4 Terminal 8 Transmission / reception means 9 Storage means 10 Clock means 11 Control means 12 Transmission / reception means 13 Data collection start time storage means 14 Transmission delay time storage means 15 Transmission start time storage means 16 Time monitoring means 17 Control means 18 Transmission data storage means 19 Information table 20 Information table

Claims (10)

First and second terminals respectively assigned first and second terminal identification information;
A data collection device for receiving transmission data signals from the first and second terminals,
The data collection device includes:
Clock means for outputting the current time;
Delay time storage means for storing the first terminal identification information and the first next delay time information in association with each other, and storing the second terminal identification information and the second next delay time information in association with each other When,
Including device control means,
The device control means includes
The first transmission indicated by the first transmission start time information included in the transmission data signal from the time output by the clock means when the reception of the transmission data signal including the first terminal identification information is completed. Information indicating the time obtained by adding the time indicated by the first next delay time information stored in the delay time storage means to the time equal to or longer than the time obtained by subtracting the start time is used as the second next delay time information. A delay time update process stored in the delay time storage means;
The first notification signal including the first next delay time information stored in the delay time storage means and the first terminal identification information is transmitted, and the second notification signal stored in the delay time storage means Processing for transmitting a second notification signal including the next delay time information and the second terminal identification information, and the first next delay time information stored in the delay time storage means and the first The terminal identification information is included in association with each other, and a third notification signal including the second next delay time information stored in the delay time storage unit and the second terminal identification information in association with each other is transmitted. A notification signal transmission process including any one of the processes to be performed, and
The first terminal is
First terminal control means;
First data collection start time storage means for storing data collection start time information indicating the data collection start time;
First transmission start time storage means;
First transmission data storage means;
Including first time monitoring means,
The first terminal control means includes:
When the first notification signal is received, at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage means, Storing the first transmission start time information indicating the first transmission start time to which the time indicated by the first next delay time information included is added in the first transmission start time storage unit, When the third notification signal is received, at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage means, The first transmission start time information indicating the first transmission start time obtained by adding the time indicated by the first next delay time information included in association with the first terminal identification information is the first transmission start time information. Transmission start time A first transmission start time storage processing of storing in 憶 means,
When the first time monitoring means detects that the time indicated by the first transmission start time information stored in the first transmission start time storage means has arrived, the first transmission data storage means Performing a first data transmission process for transmitting the transmission data signal including the data stored in the data, the first terminal identification information, and the first transmission start time information to the data collection device,
The second terminal is
A second terminal control means;
Second data collection start time storage means for storing the data collection start time information;
Second transmission start time storage means;
Second transmission data storage means;
A second time monitoring means,
The second terminal control means includes:
When the second notification signal is received, at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means, Second transmission start time information indicating a second transmission start time including a time indicated by the second next delay time information included is stored in the second transmission start time storage unit, When the third notification signal is received, the third notification signal is added to the third notification signal at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means. Second transmission start time information indicating a second transmission start time obtained by adding a time indicated by the second next delay time information included in association with the second terminal identification information. Store in storage A second transmission start time storage processing,
When the second time monitoring means detects that the time indicated by the second transmission start time information stored in the second transmission start time storage means has arrived, the second transmission data storage means Performing a second data transmission process of transmitting the transmission data signal including the data stored in the data, the second terminal identification information, and the second transmission start time information to the data collection device. Characteristic data collection system. First and second terminals respectively assigned first and second terminal identification information;
A data collection device for receiving transmission data signals from the first and second terminals,
The data collection device includes:
Clock means for outputting the current time;
Data collection start time information indicating data collection start time is stored, and the first terminal identification information and the first next delay time information are stored in association with each other, and the second terminal identification information A delay time storage means for storing the second next delay time information in association with each other;
Including device control means,
The device control means includes
The time indicated by the data collection start time information stored in the delay time storage means from the time output by the clock means when reception of the transmission data signal including the first terminal identification information is completed. Stored in the delay time storage means at a time equal to or greater than the time obtained by adding the time indicated by the first next delay time information stored in the delay time storage means to the data collection start time. A delay time update process for storing, in the delay time storage means, information indicating a time obtained by adding the time indicated by the first next delay time information as the second next delay time information;
The first notification signal including the first next delay time information stored in the delay time storage means and the first terminal identification information is transmitted, and the second notification signal stored in the delay time storage means Processing for transmitting a second notification signal including the next delay time information and the second terminal identification information, and the first next delay time information stored in the delay time storage means and the first The terminal identification information is included in association with each other, and a third notification signal including the second next delay time information stored in the delay time storage unit and the second terminal identification information in association with each other is transmitted. A notification signal transmission process including any one of the processes to be performed, and
The first terminal is
First terminal control means;
First data collection start time storage means for storing the data collection start time information;
First transmission start time storage means;
First transmission data storage means;
Including first time monitoring means,
The first terminal control means includes:
When the first notification signal is received, at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage means, Storing the first transmission start time information indicating the first transmission start time to which the time indicated by the first next delay time information included is added in the first transmission start time storage unit, When the third notification signal is received, the time indicated by the first next delay time information included in association with the first terminal identification information is added to the third notification signal. A first transmission start time storage process for storing the first transmission start time information indicating the first transmission start time in the first transmission start time storage means;
When the first time monitoring means detects that the time indicated by the first transmission start time information stored in the first transmission start time storage means has arrived, the first transmission data storage means And a first data transmission process for transmitting the transmission data signal including the data stored in the first terminal identification information to the data collection device,
The second terminal is
A second terminal control means;
Second data collection start time storage means for storing the data collection start time information;
Second transmission start time storage means;
Second transmission data storage means;
A second time monitoring means,
The second terminal control means includes:
When the second notification signal is received, at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means, Second transmission start time information indicating a second transmission start time including a time indicated by the second next delay time information included is stored in the second transmission start time storage unit, When the third notification signal is received, the third notification signal is added to the third notification signal at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means. Second transmission start time information indicating a second transmission start time obtained by adding a time indicated by the second next delay time information included in association with the second terminal identification information. Store in storage A second transmission start time storage processing,
When the second time monitoring means detects that the time indicated by the second transmission start time information stored in the second transmission start time storage means has arrived, the second transmission data storage means And a second data transmission process for transmitting the transmission data signal including the data stored in the second terminal identification information to the data collection device. First and second terminals respectively assigned first and second terminal identification information;
A data collection device for receiving transmission data signals from the first and second terminals,
The data collection device includes:
Clock means for outputting the current time;
The first terminal identification information and the first next transmission start time information are stored in association with each other, and the second terminal identification information and the second next transmission start time information are stored in association with each other. Time storage means;
Including device control means,
The device control means includes
Indicated by the first next transmission start time information stored in the transmission start time storage means from the time output by the clock means when reception of the transmission data signal including the first terminal identification information is completed. Information indicating a time obtained by adding a time equal to or longer than a time obtained by subtracting the first transmission start time to the time indicated by the first next transmission start time information stored in the transmission start time storage means. Transmission start time update processing stored in the transmission start time storage means as next transmission start time information of 2;
The first notification signal including the first next transmission start time information and the first terminal identification information stored in the transmission start time storage unit is transmitted and stored in the transmission start time storage unit A process of transmitting a second notification signal including the second next transmission start time information and the second terminal identification information, and the first next transmission start time stored in the transmission start time storage means Information and the first terminal identification information are included in association with each other, and the second next transmission start time information stored in the transmission start time storage means and the second terminal identification information are included in association with each other. A notification signal transmission process including any one of the processes of transmitting the third notification signal,
The first terminal is
First terminal control means;
First transmission start time storage means;
First transmission data storage means;
Including first time monitoring means,
The first terminal control means includes:
When the first notification signal is received, the first next transmission start time information included in the first notification signal is stored in the first transmission start time storage unit, while the third When the notification signal is received, the first next transmission start time information included in the third notification signal in association with the first terminal identification information is stored in the first transmission start time storage unit. A first transmission start time storage process stored in
When the first time monitoring means detects that the time indicated by the first next transmission start time information stored in the first transmission start time storage means has arrived, the first transmission data storage Performing a first data transmission process of transmitting the transmission data signal including data stored in a means and the first terminal identification information to the data collection device;
The second terminal is
A second terminal control means;
Second transmission start time storage means;
Second transmission data storage means;
A second time monitoring means,
The second terminal control means includes:
If the second notification signal is received, the second next transmission start time information included in the second notification signal is stored in the second transmission start time storage means, while the third transmission signal is stored in the second transmission signal. When the notification signal is received, the second next transmission start time information included in the third notification signal in association with the second terminal identification information is stored in the second transmission start time storage means. A second transmission start time storing process stored in
When the second time monitoring means detects that the time indicated by the second next transmission start time information stored in the second transmission start time storage means has arrived, the second transmission data storage And a second data transmission process for transmitting the transmission data signal including the data stored in the means and the second terminal identification information to the data collection device. First and second terminals respectively assigned first and second terminal identification information;
A data collection device for receiving transmission data signals from the first and second terminals,
The data collection device includes:
Clock means for outputting the current time;
The first terminal identification information, the first cumulative transmission number information indicating the number of transmissions of the transmission data signal from the first terminal to the data collection device in the past, and the data collection from the past first terminal The first accumulated transmission time information indicating the accumulated transmission time obtained by accumulating the transmission time of the transmission data signal to the apparatus and the first next delay time information are stored in association with each other, and the second terminal identification information and Second cumulative transmission number information indicating the number of transmissions of the transmission data signal from the second terminal in the past to the data collection device and past transmission data signal from the second terminal to the data collection device. Delay time storage means for storing the second accumulated transmission time information indicating the accumulated transmission time obtained by accumulating the transmission time and the second next delay time information in association with each other;
Including device control means,
The device control means includes
When the transmission data signal including the first terminal identification information is received, a new transmission obtained by adding 1 to the number of transmissions indicated by the first cumulative transmission number information stored in the delay time storage means The first cumulative transmission number information stored in the delay time storage means is updated with information indicating the number of times, and the clock means outputs when the transmission data signal including the first terminal identification information is received. The first cumulative transmission time information stored in the delay time storage means is a time obtained by subtracting the first transmission start time indicated by the first transmission start time information included in the transmission data signal The first accumulated transmission time information updated by updating the first accumulated transmission time information stored in the delay time storage means with information indicating a new accumulated transmission time added to the accumulated transmission time indicated by Indicated by The first next delay stored in the delay time storage means at a time equal to or greater than the average transmission time obtained by dividing the accumulated transmission time by the accumulated transmission count indicated by the updated first cumulative transmission count information. A delay time update process for storing information indicating a time obtained by adding the time indicated by the time information in the delay time storage means as the second next delay time information;
The first notification signal including the first next delay time information stored in the delay time storage means and the first terminal identification information is transmitted, and the second notification signal stored in the delay time storage means Processing for transmitting a second notification signal including the next delay time information and the second terminal identification information, and the first next delay time information stored in the delay time storage means and the first The terminal identification information is included in association with each other, and a third notification signal including the second next delay time information stored in the delay time storage unit and the second terminal identification information in association with each other is transmitted. A notification signal transmission process including any one of the processes to be performed, and
The first terminal is
First terminal control means;
First data collection start time storage means for storing data collection start time information indicating the data collection start time;
First transmission start time storage means;
First transmission data storage means;
Including first time monitoring means,
The first terminal control means includes:
When the first notification signal is received, at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage means, The first transmission start time information indicating the first transmission start time including the time indicated by the first next delay time information included is stored in the first transmission start time storage means, When the third notification signal is received, the third notification signal is added to the third notification signal at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage unit. The first transmission start time information indicating the first transmission start time added with the time indicated by the first next delay time information included in association with the terminal identification information of the first transmission. Start time storage means A first transmission start time storage process of storing,
When the first time monitoring means detects that the time indicated by the first transmission start time information stored in the first transmission start time storage means has arrived, the first transmission data storage means Performing a first data transmission process for transmitting the transmission data signal including the data stored in the data, the first terminal identification information, and the first transmission start time information to the data collection device,
The second terminal is
A second terminal control means;
Second data collection start time storage means for storing the data collection start time information;
Second transmission start time storage means;
Second transmission data storage means;
A second time monitoring means,
The second terminal control means includes:
When the second notification signal is received, at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means, Second transmission start time information indicating a second transmission start time including a time indicated by the second next delay time information included is stored in the second transmission start time storage unit, When the third notification signal is received, the third notification signal is added to the third notification signal at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means. Second transmission start time information indicating a second transmission start time obtained by adding a time indicated by the second next delay time information included in association with the second terminal identification information. Store in storage A second transmission start time storage processing,
When the second time monitoring means detects that the time indicated by the second transmission start time information stored in the second transmission start time storage means has arrived, the second transmission data storage means Performing a second data transmission process of transmitting the transmission data signal including the data stored in the data, the second terminal identification information, and the second transmission start time information to the data collection device. Characteristic data collection system. First and second terminals respectively assigned first and second terminal identification information;
A data collection device for receiving transmission data signals from the first and second terminals,
The data collection device includes:
Clock means for outputting the current time;
Data collection start time information indicating data collection start time is stored, and the first terminal identification information and a first number of transmission times of the transmission data signal from the first terminal to the data collection device in the past are stored. First accumulated transmission time information and first next delay time information indicating accumulated transmission time information obtained by accumulating the transmission time of the transmission data signal from the first terminal to the data collection device in the past. And the second terminal identification information, the second cumulative transmission number information indicating the number of transmissions of the transmission data signal from the second terminal to the data collection device in the past, and the past Second accumulated transmission time information indicating accumulated transmission time obtained by accumulating transmission time of the transmission data signal from the second terminal to the data collection device and second next delay time information are stored in association with each other. And the delay time storage means,
Including device control means,
The device control means includes
When the transmission data signal including the first terminal identification information is received, a new transmission obtained by adding 1 to the number of transmissions indicated by the first cumulative transmission number information stored in the delay time storage means The first cumulative transmission number information stored in the delay time storage means is updated with information indicating the number of times, and the clock means outputs when the transmission data signal including the first terminal identification information is received. Indicated by the first next delay time information stored in the delay time storage means at the data collection start time indicated by the data collection start time information stored in the delay time storage means. Information indicating a new accumulated transmission time obtained by adding a time obtained by subtracting the time added to the accumulated transmission time indicated by the first accumulated transmission time information stored in the delay time storage means. The first accumulated transmission time information stored in the delay time storage means is updated, and the updated accumulated transmission time indicated by the updated first accumulated transmission time information is updated to the first accumulated transmission count. Information indicating a time obtained by adding a time indicated by the first next delay time information stored in the delay time storage means to a time equal to or longer than an average transmission time divided by the cumulative number of transmissions indicated by the information. A delay time update process stored in the delay time storage means as next delay time information of 2;
The first notification signal including the first next delay time information stored in the delay time storage means and the first terminal identification information is transmitted, and the second notification signal stored in the delay time storage means Processing for transmitting a second notification signal including the next delay time information and the second terminal identification information, and the first next delay time information stored in the delay time storage means and the first The terminal identification information is included in association with each other, and a third notification signal including the second next delay time information stored in the delay time storage unit and the second terminal identification information in association with each other is transmitted. A notification signal transmission process including any one of the processes to be performed, and
The first terminal is
First terminal control means;
First data collection start time storage means for storing data collection start time information indicating the data collection start time;
First transmission start time storage means;
First transmission data storage means;
Including first time monitoring means,
The first terminal control means includes:
When the first notification signal is received, at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage means, The first transmission start time information indicating the first transmission start time including the time indicated by the first next delay time information included is stored in the first transmission start time storage means, When the third notification signal is received, the third notification signal is added to the third notification signal at the data collection start time indicated by the data collection start time information stored in the first data collection start time storage unit. The first transmission start time information indicating the first transmission start time added with the time indicated by the first next delay time information included in association with the terminal identification information of the first transmission. Start time storage means A first transmission start time storage process of storing,
When the first time monitoring means detects that the time indicated by the first transmission start time information stored in the first transmission start time storage means has arrived, the first transmission data storage means Performing a first data transmission process for transmitting the transmission data signal including the data stored in the first terminal identification information to the data collection device,
The second terminal is
A second terminal control means;
Second data collection start time storage means for storing the data collection start time information;
Second transmission start time storage means;
Second transmission data storage means;
A second time monitoring means,
The second terminal control means includes:
When the second notification signal is received, at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means, Second transmission start time information indicating a second transmission start time including a time indicated by the second next delay time information included is stored in the second transmission start time storage unit, When the third notification signal is received, the third notification signal is added to the third notification signal at the data collection start time indicated by the data collection start time information stored in the second data collection start time storage means. Second transmission start time information indicating a second transmission start time obtained by adding a time indicated by the second next delay time information included in association with the second terminal identification information. Store in storage A second transmission start time storage processing,
When the second time monitoring means detects that the time indicated by the second transmission start time information stored in the second transmission start time storage means has arrived, the second transmission data storage means And a second data transmission process for transmitting the transmission data signal including the data stored in the second terminal identification information to the data collection device. First and second terminals respectively assigned first and second terminal identification information;
A data collection device for receiving transmission data signals from the first and second terminals,
The data collection device includes:
Clock means for outputting the current time;
The first terminal identification information, the first cumulative transmission number information indicating the number of transmissions of the transmission data signal from the first terminal to the data collection device in the past, and the data collection from the past first terminal First accumulated transmission time information indicating accumulated transmission time obtained by accumulating transmission time of the transmission data signal to the apparatus and first next transmission start time information are stored in association with each other, and the second terminal identification information Second cumulative transmission number information indicating the number of transmissions of the transmission data signal from the second terminal to the data collection device in the past, and the transmission data signal from the second terminal to the data collection device in the past. Transmission start time storage means for storing the second accumulated transmission time information indicating the accumulated transmission time and the second next transmission start time information in association with each other,
Including device control means,
The device control means includes
When the transmission data signal including the first terminal identification information is received, a new value obtained by adding 1 to the transmission count indicated by the first cumulative transmission count information stored in the transmission start time storage means The clock means when the first cumulative transmission number information stored in the transmission start time storage means is updated with information indicating the number of transmissions and the transmission data signal including the first terminal identification information is received. A time obtained by subtracting the first transmission start time stored in the transmission start time storage unit from the output time is indicated by the first cumulative transmission time information stored in the transmission start time storage unit. The first cumulative transmission time information stored in the transmission start time storage means is updated with information indicating a new cumulative transmission time added to the cumulative transmission time, and is indicated by the updated first cumulative transmission time information. Is The first transmission start stored in the transmission start time storage means is a time equal to or longer than the average transmission time obtained by dividing the cumulative transmission time by the cumulative transmission count indicated by the updated first cumulative transmission count information. A transmission start time update process for storing information indicating a time added to the time indicated by the time information in the transmission start time storage unit as the second next transmission start time information;
The first notification signal including the first next transmission start time information and the first terminal identification information stored in the transmission start time storage unit is transmitted and stored in the transmission start time storage unit A process of transmitting a second notification signal including the second next transmission start time information and the second terminal identification information, and the first next transmission start time stored in the transmission start time storage means Information and the first terminal identification information are included in association with each other, and the second next transmission start time information stored in the transmission start time storage means and the second terminal identification information are included in association with each other. A notification signal transmission process including any one of the processes of transmitting the third notification signal,
The first terminal is
First terminal control means;
First transmission start time storage means;
First transmission data storage means;
Including first time monitoring means,
The first terminal control means includes:
When the first notification signal is received, the first next transmission start time information included in the first notification signal is stored in the first transmission start time storage unit, while the third When the notification signal is received, the first next transmission start time information included in the third notification signal in association with the first terminal identification information is stored in the first transmission start time storage unit. A first transmission start time storage process stored in
When the first time monitoring means detects that the time indicated by the first next transmission start time information stored in the first transmission start time storage means has arrived, the first transmission data storage Performing a first data transmission process of transmitting the transmission data signal including data stored in a means and the first terminal identification information to the data collection device;
The second terminal is
A second terminal control means;
Second transmission start time storage means;
Second transmission data storage means;
A second time monitoring means,
The second terminal control means includes:
If the second notification signal is received, the second next transmission start time information included in the second notification signal is stored in the second transmission start time storage means, while the third transmission signal is stored in the second transmission signal. When the notification signal is received, the second next transmission start time information included in the third notification signal in association with the second terminal identification information is stored in the second transmission start time storage means. A second transmission start time storing process stored in
When the second time monitoring means detects that the time indicated by the second next transmission start time information stored in the second transmission start time storage means has arrived, the second transmission data storage And a second data transmission process for transmitting the transmission data signal including the data stored in the means and the second terminal identification information to the data collection device. The first terminal identification information assigned to the first terminal is stored in association with the first next delay time information, and the second terminal identification information assigned to the second terminal and the second next time are stored. In the data collection device having the delay time storage means that stores the delay time information in association with each other, the first data included in the transmission data signal from the time when the reception of the transmission data signal including the first terminal identification information is completed. A time obtained by adding a time indicated by the first next delay time information stored in the delay time storage means to a time equal to or longer than a time obtained by subtracting the first transmission start time indicated by the transmission start time information. A delay time update step of storing information in the delay time storage means as the second next delay time information;
A first notification signal including the first next delay time information stored in the delay time storage means and the first terminal identification information is transmitted from the data collection device and stored in the delay time storage means Transmitting from the data collection device a second notification signal including the second next delay time information and the second terminal identification information, and the first time stored in the delay time storage means The next delay time information and the first terminal identification information are included in association with each other, and the second next delay time information stored in the delay time storage means and the second terminal identification information are associated with each other. A notification signal transmission step including any one of the steps of transmitting the third notification signal included from the data collection device;
When the first terminal receives the first notification signal, the data indicated by the data collection start time information stored in the first data collection start time storage means provided in the first terminal The first transmission start time information indicating the first transmission start time obtained by adding the time indicated by the first next delay time information included in the first notification signal to the collection start time is the first transmission start time information. Is stored in the first transmission start time storage means provided in the terminal, and when the first terminal receives the third notification signal, the first data collection start time storage means The first next delay time information included in the third notification signal in association with the first terminal identification information at the data collection start time indicated by the stored data collection start time information. The first time added A first transmission start time storing step of storing the first transmission start time information indicating the signal start time to the first transmission start time storing means,
When the first terminal detects that the time indicated by the first transmission start time information stored in the first transmission start time storage means has arrived, the first terminal provided in the first terminal A first data transmission step of transmitting the transmission data signal including data stored in one transmission data storage means, the first terminal identification information, and the first transmission start time information to the data collection device; And when the second terminal receives the second notification signal, it is indicated by the data collection start time information stored in the second data collection start time storage means provided in the second terminal. Second transmission start time information indicating a second transmission start time obtained by adding a time indicated by the second next delay time information included in the second notification signal to the data collection start time. Provided in 2 terminals Stored in the second transmission start time storage means, and when the second terminal receives the third notification signal, the second data collection start time storage means stores the The time indicated by the second next delay time information included in the third notification signal in association with the second terminal identification information is added to the data collection start time indicated by the data collection start time information. A second transmission start time storage step of storing the second transmission start time information indicating the second transmission start time in the second transmission start time storage means;
When the second terminal detects that the time indicated by the second transmission start time information stored in the second transmission start time storage means has arrived, the second terminal provided in the second terminal A second data transmission step of transmitting the transmission data signal including the data stored in the second transmission data storage means, the second terminal identification information, and the second transmission start time information to the data collection device; A data collection method comprising: and. The first terminal identification information assigned to the first terminal is stored in association with the first next transmission start time information, and the second terminal identification information assigned to the second terminal and the second In the data collection device including the transmission start time storage means for storing the next transmission start time information in association with each other, the transmission start time is determined from the time when reception of the transmission data signal including the first terminal identification information is completed. The first next transmission stored in the transmission start time storage means is equal to or longer than the time obtained by subtracting the first transmission start time indicated by the first next transmission start time information stored in the storage means. A transmission start time update step of storing information indicating a time added to the time indicated by the start time information in the transmission start time storage means as the second next transmission start time information;
A first notification signal including the first next transmission start time information and the first terminal identification information stored in the transmission start time storage unit is transmitted from the data collection device, and the transmission start time storage is stored. Transmitting the second notification signal including the second next transmission start time information and the second terminal identification information stored in the means from the data collection device, and storing in the transmission start time storage means The first next transmission start time information and the first terminal identification information are included in association with each other, and the second next transmission start time information stored in the transmission start time storage means and the second A notification signal transmission step consisting of any one of the steps of transmitting a third notification signal including the terminal identification information in association with the data collection device;
When the first terminal receives the first notification signal, the first next transmission start time information included in the first notification signal is provided in the first terminal. Stored in the transmission start time storage means, and when the first terminal receives the third notification signal, the third notification signal is included in association with the first terminal identification information. A first transmission start time storage step of storing the first next transmission start time information to be stored in the first transmission start time storage means;
Provided in the first terminal when the first terminal detects that the time indicated by the first next transmission start time information stored in the first transmission start time storage means has arrived A first data transmission step of transmitting the transmission data signal including the data stored in the first transmission data storage means and the first terminal identification information to the data collection device;
When the second terminal receives the second notification signal, the second next transmission start time information included in the second notification signal is provided in the second terminal. When the second terminal receives the third notification signal, it is stored in the third notification signal in association with the second terminal identification information. A second transmission start time storage step for storing the second next transmission start time information to be stored in the second transmission start time storage means;
Provided in the second terminal when the second terminal detects that the time indicated by the second next transmission start time information stored in the second transmission start time storage means has arrived And a second data transmission step of transmitting the transmission data signal including the data stored in the second transmission data storage means and the second terminal identification information to the data collection device. Data collection method. The first terminal identification information assigned to the first terminal, the first cumulative transmission number information indicating the number of transmissions of transmission data signals from the first terminal to the data collection device in the past, and the past first The first accumulated transmission time information indicating the accumulated transmission time obtained by accumulating the transmission time of the transmission data signal from the terminal to the data collection device and the first next delay time information are stored in association with each other, and the second Second terminal identification information assigned to the terminal, second cumulative transmission number information indicating the number of transmissions of the transmission data signal from the second terminal to the data collection device in the past, and the second terminal in the past Delay time storage means for storing second accumulated transmission time information indicating accumulated transmission time accumulated from the transmission time of the transmission data signal to the data collection device in association with second next delay time information Previous In the data collection device, when the transmission data signal including the first terminal identification information is received, the number of transmissions indicated by the first cumulative transmission number information stored in the delay time storage unit is 1 From the time when the transmission data signal including the first terminal identification information is received by updating the first cumulative transmission number information stored in the delay time storage means with information indicating the new transmission number to which The time obtained by subtracting the first transmission start time indicated by the first transmission start time information included in the transmission data signal is the accumulation indicated by the first accumulated transmission time information stored in the delay time storage means. The first cumulative transmission time information stored in the delay time storage means is updated with information indicating a new cumulative transmission time added to the transmission time, and is indicated by the updated first cumulative transmission time information. The first next delay time stored in the delay time storage means at a time equal to or greater than the average transmission time obtained by dividing the product transmission time by the cumulative transmission count indicated by the updated first cumulative transmission count information. A delay time update step of storing information indicating a time obtained by adding the time indicated by the information in the delay time storage means as the second next delay time information;
A first notification signal including the first next delay time information stored in the delay time storage means and the first terminal identification information is transmitted from the data collection device and stored in the delay time storage means Transmitting from the data collection device a second notification signal including the second next delay time information and the second terminal identification information, and the first time stored in the delay time storage means The next delay time information and the first terminal identification information are included in association with each other, and the second next delay time information stored in the delay time storage means and the second terminal identification information are associated with each other. A notification signal transmission step including any one of the steps of transmitting the third notification signal included from the data collection device;
When the first terminal receives the first notification signal, the data indicated by the data collection start time information stored in the first data collection start time storage means provided in the first terminal First transmission start time information indicating a first transmission start time obtained by adding a time indicated by the first next delay time information included in the first notification signal to the collection start time is the first terminal. Is stored in the first transmission start time storage means, and when the first terminal receives the third notification signal, it is stored in the first data collection start time storage means. The time indicated by the first next delay time information included in the third notification signal in association with the first terminal identification information at the data collection start time indicated by the data collection start time information. The first transmission starts with A first transmission start time storing step of storing the first transmission start time information indicating the time to the first transmission start time storing means,
When the first terminal detects that the time indicated by the first transmission start time information stored in the first transmission start time storage means has arrived, the first terminal provided in the first terminal A first data transmission step of transmitting the transmission data signal including data stored in one transmission data storage means, the first terminal identification information, and the first transmission start time information to the data collection device; When,
When the second terminal receives the second notification signal, it is indicated by the data collection start time information stored in the second data collection start time storage means provided in the second terminal. Second transmission start time information indicating a second transmission start time obtained by adding a time indicated by the second next delay time information included in the second notification signal to the data collection start time is the second transmission start time information. Is stored in the second transmission start time storage means provided in the terminal of the second terminal, and when the second terminal receives the third notification signal, the second data collection start time storage means is stored in the second data collection start time storage means. Indicated at the second next delay time information included in the third notification signal in association with the second terminal identification information at the data collection start time indicated by the stored data collection start time information. The second time added A second transmission start time storing step of storing the second transmission start time information indicating the signal start time to said second transmission start time storing means,
When the second terminal detects that the time indicated by the second transmission start time information stored in the second transmission start time storage means has arrived, the second terminal provided in the second terminal A second data transmission step of transmitting the transmission data signal including the data stored in the second transmission data storage means, the second terminal identification information, and the second transmission start time information to the data collection device; A data collection method comprising: and. The first terminal identification information assigned to the first terminal, the first cumulative transmission number information indicating the number of transmissions of transmission data signals from the first terminal to the data collection device in the past, and the past first The first accumulated transmission time information indicating the accumulated transmission time obtained by accumulating the transmission time of the transmission data signal from the terminal to the data collection device is stored in association with the first next transmission start time information, and the second Second terminal identification information assigned to the terminal, second cumulative transmission number information indicating the number of transmissions of the transmission data signal from the second terminal to the data collection device, and the past second Transmission start time storage in which second accumulated transmission time information indicating accumulated transmission time accumulated from the transmission time of the transmission data signal from the terminal to the data collection device and second next transmission start time information are stored in association with each other. In the data collection device including a stage, when the transmission data signal including the first terminal identification information is received, it is indicated by the first cumulative transmission number information stored in the transmission start time storage unit The transmission data signal including the first terminal identification information by updating the first cumulative transmission number information stored in the transmission start time storage unit with information indicating a new transmission number obtained by adding 1 to the transmission number A time obtained by subtracting the first transmission start time stored in the transmission start time storage means from the time output by the clock means when the time is received is stored in the transmission start time storage means. Updating the first accumulated transmission time information stored in the transmission start time storage means with information indicating a new accumulated transmission time in addition to the accumulated transmission time indicated by the one accumulated transmission time information; The transmission start time storage stores a time equal to or greater than an average transmission time obtained by dividing the cumulative transmission time indicated by the first cumulative transmission time information by the cumulative transmission number indicated by the updated first cumulative transmission number information. Transmission start time time update that stores information indicating time added to the time indicated by the first transmission start time information stored in the means in the transmission start time storage means as the second next transmission start time information Steps,
A first notification signal including the first next transmission start time information and the first terminal identification information stored in the transmission start time storage unit is transmitted from the data collection device, and the transmission start time storage is stored. Transmitting the second notification signal including the second next transmission start time information and the second terminal identification information stored in the means from the data collection device, and storing in the transmission start time storage means The first next transmission start time information and the first terminal identification information are included in association with each other, and the second next transmission start time information stored in the transmission start time storage means and the second A notification signal transmission step comprising any one of the steps of transmitting a third notification signal including the terminal identification information in association with the data collection device;
When the first terminal receives the first notification signal, the first next transmission start time information included in the first notification signal is provided in the first terminal. Stored in the transmission start time storage means, and when the first terminal receives the third notification signal, the third notification signal is included in association with the first terminal identification information. A first transmission start time storage step of storing the first next transmission start time information to be stored in the first transmission start time storage means;
Provided in the first terminal when the first terminal detects that the time indicated by the first next transmission start time information stored in the first transmission start time storage means has arrived A first data transmission step of transmitting the transmission data signal including the data stored in the first transmission data storage means and the first terminal identification information to the data collection device;
When the second terminal receives the second notification signal, the second next transmission start time information included in the second notification signal is provided in the second terminal. When the second terminal receives the third notification signal, it is stored in the third notification signal in association with the second terminal identification information. A second transmission start time storage step for storing the second next transmission start time information to be stored in the second transmission start time storage means;
Provided in the second terminal when the second terminal detects that the time indicated by the second next transmission start time information stored in the second transmission start time storage means has arrived And a second data transmission step of transmitting the transmission data signal including the data stored in the second transmission data storage means and the second terminal identification information to the data collection device. Data collection method.

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