JP5483743B2 - POSITION INFORMATION TRANSMITTING DEVICE, POSITION INFORMATION MONITORING SYSTEM, POSITION INFORMATION TRANSMISSION INTERVAL OPTIMIZING METHOD - Google Patents

Description

The present invention relates to a position information transmission device, a position information monitoring system, and a position information transmission interval optimization method for wirelessly or wiredly transmitting position information of a monitoring target, and particularly suitable position information according to the position and time of the monitoring target. The present invention relates to a position information transmission device, a position information monitoring system, and a position information transmission interval optimizing method that enable transmission and are excellent in traceability of a monitoring target.

In a conventional position information transmission device and position information monitoring system, a GPS (GLOBAL POSITIONING SYSTEM) using radio waves from an artificial satellite or a mobile phone base station is used.
By tracking the location information of the monitoring target, for example, security systems such as detection of guest intrusion into theft, kidnapping, and intrusion prohibited areas, monitoring status and route of monitoring targets, distress signals in the mountains and the sea, etc. The system is provided with a service, and the service provider wirelessly receives GPS-based position information from a wireless communication terminal that moves together with the monitoring target, and the user is a service provider from a personal computer (PC) or a mobile phone. The current position of the monitoring target can be grasped by accessing the homepage. In emergency situations, the service provider should report to the police, firefighting, rescue team, security, etc., and dispatch response personnel to the site to collect the situation and take appropriate measures based on user requests. Can do.
Since the wireless communication terminal used for providing such a service needs to be portable, the size and weight are limited, and how to secure the power required for wireless transmission is important. In addition, it is necessary to send location information frequently in order to obtain current location information accurately in an emergency situation. Since there is a possibility that information in an emergency may be buried, it is necessary to have flexibility to cope with the situation.
As a technique for enhancing the flexibility of the position information monitoring system, a system for determining a wireless transmission interval from the current position of a wireless communication terminal carried by a user has been proposed (for example, see Patent Document 1).

JP 2007-166293 A

However, in the system of Patent Document 1, since the wireless transmission interval is set for each position in advance and the wireless transmission interval is determined based on the position of the wireless communication terminal, it is desired to change the wireless transmission interval according to the time zone even at the same position. There is a problem that it is not possible to deal with cases.

An example of such a problem is that the wireless transmission interval cannot be changed when the user is in the school even at midnight or in the mountains when the scheduled time for descent is exceeded.
In view of the above points, the present invention makes it possible to transmit appropriate location information by changing to an appropriate wireless or wired transmission interval according to the state of the monitoring target, and to have excellent tracking performance of the monitoring target. It is to provide a transmission device, a position information monitoring system, and a position information transmission interval optimization method.

In order to achieve the above object, according to one aspect of the present invention, for example, a position information transmission device having the following is provided.
A positioning unit that acquires position information corresponding to the position of the monitoring target. A transmission interval table that has a plurality of transmission intervals based on the position information and the acquisition time of the position information. Based on the acquisition time of the position information and the position information. A transmission interval selection unit that sets a transmission interval selected from the plurality of transmission intervals held in the transmission interval table. When the transmission timing is based on the transmission interval set by the transmission interval selection unit, From the transmission control unit that transmits the position information to be monitored and the acquisition time of the position information to the position information transmission unit, the position information transmission unit that transmits the position information to be monitored to the position information reception unit, and the setting information transmission unit Setting information receiving unit for receiving the plurality of transmission intervals set in the transmission interval table

Moreover, in order to achieve the said subject, according to the other aspect of this invention, the positional information monitoring system which has the following is provided, for example.
A positioning unit that acquires position information corresponding to the position of the monitoring target. A transmission interval table that has a plurality of transmission intervals based on the position information and the acquisition time of the position information. Based on the acquisition time of the position information and the position information. The transmission interval selection unit for selecting a transmission interval selected from the plurality of transmission intervals held in the transmission interval table. When the transmission timing is based on the transmission interval selected by the transmission interval selection unit, From the transmission control unit that transmits the position information to be monitored and the acquisition time of the position information to the position information transmission unit, the position information transmission unit that transmits the position information to be monitored to the position information reception unit, and the setting information transmission unit A setting information receiving unit that receives the plurality of transmission intervals set in the transmission interval table. The position information and the acquisition time of the position information of the monitoring target are transmitted. Position information receiving unit received from the unit, position information recording unit for recording the position information and the acquisition time of the position information, setting information specifying unit for determining the plurality of transmission intervals set in the transmission interval table, and receiving the setting information Setting information transmission unit for transmitting the plurality of transmission intervals set in the transmission interval table to the unit

Moreover, the transmission interval table possessed by the position information transmission device can be configured to retain a plurality of transmission intervals based on the position information and the acquisition time of the position information.
The transmission interval selection unit can change the transmission interval of the location information when the location information of the location information transmission device changes, or with the passage of time, or with the combination of the change of location information and the passage of time.
The transmission interval control unit can automatically suppress the transmission interval of the next position information when the position information transmission device transmits the position information and the previously transmitted position information and the position are not moving.

According to the first solution of the present invention,
A positioning unit for acquiring the position information of the device itself and the acquisition time at which the position information was acquired;
Against the region and time zone, and transmitting interval table storing outgoing between sending pre Symbol position information acquisition time,
Based on the location information and the acquisition time acquired by the positioning unit, the transmission interval table is referred to, and one or more regions defined for the location information and the time zone corresponding to the acquisition time are defined. A transmission interval selector for obtaining a plurality of transmission intervals;
When a transmission timing based on the calling interval determined by the originating interval selector, the outgoing call control part for performing control to transmit the acquired time and the position information,
Under the control of the outgoing call control part includes a location information transmitting unit that transmits the acquisition time and the position information,
When a plurality of transmission intervals are obtained, the transmission interval selection unit applies a minimum transmission interval from among them,
When the location information transmission unit transmits the location information and the acquisition time, the transmission control unit determines that the current transmission interval is the same as the previous transmission location information or region and the current transmission location information or region. And the next transmission interval to the value obtained by multiplying the same position information or the value according to the time located in the area,
When the next transmission interval exceeds a predetermined maximum value, the transmission control unit updates the next transmission interval to the maximum value.
There is provided a position information transmitting apparatus characterized by the above.

According to the second solution of the present invention,
A position information transmitter as described above;
A position information receiver that receives the position information and the acquisition time from the position information transmitter;
A position information recording unit for recording the position information received by the position information receiving unit and the acquisition time;
A position information monitoring system is provided.

According to the third solution of the present invention,
A position information transmitter as described above;
A setting information specifying unit for setting a plurality of transmission interval data representing transmission intervals for a region and a time zone to be set in the transmission interval table of the position information transmission device;
There is provided a position information monitoring system including a setting information transmitting unit that transmits a plurality of the transmission interval data determined by the setting information specifying unit to the position information transmitting device.

According to the fourth solution of the present invention,
Acquire the location information of the device itself and the acquisition time when the location information was acquired,
Based on the position information acquired by measuring position unit and acquisition time, with respect to the region and time zone, with reference to the outgoing interval table storing outgoing between sending pre Symbol position information acquisition time, corresponding to the position information Determining one or a plurality of transmission intervals defined for the area to be and the time zone corresponding to the acquisition time,
If multiple call intervals are required, apply the minimum call interval from among them,
When a transmission timing based on the determined metadata the originating interval, performs control of transmitting the acquisition time and the position information,
In accordance with the control, and transmits the acquisition time and the position information,
When transmitting the position information and the acquisition time, if the previously transmitted position information or area and the position information or area transmitted this time are the same, the current transmission interval and the time located in the same position information or area Set the next transmission interval to the value multiplied by the corresponding value,
A position information transmission interval optimization method is provided that updates the next transmission interval to the maximum value when the next transmission interval exceeds a predetermined maximum value .

According to the present invention, since the transmission interval is calculated from the current position information and the current time, it is possible to keep the transmission interval in an optimum state depending on the time even at the same position, and the power of the terminal device by wireless or wired It is possible to reduce the consumption amount, reduce the management load by reducing the information amount of the location information recording unit, and improve the location information traceability in an emergency.

The schematic block diagram which shows the positional infomation transmission apparatus 1 which concerns on embodiment of this invention, and a positional infomation monitoring system. Schematic which shows the area which monitors the positional infomation transmission apparatus 1 which concerns on embodiment of this invention. Schematic which shows the time slot | zone which monitors the positional infomation transmission apparatus 1 which concerns on embodiment of this invention. The correspondence figure of the table which shows the transmission interval of each area and time slot in the transmission interval table 102 which concerns on embodiment of this invention. Explanatory drawing which shows partially the GPS data which the positional infomation transmission apparatus 1 which concerns on embodiment of this invention receives from a GPS satellite. The flowchart which shows operation | movement of the positional infomation transmission apparatus 1. FIG. The flowchart which shows the detailed procedure of transmission interval (SNDINT) calculation. The flowchart about an initialization process. The flowchart about transmission interval data update processing. The flowchart about transmission interval determination processing. The flowchart about a transmission interval counter maximum value check process. The flowchart about a positional infomation transmission process. The flowchart about the same position information transmission suppression process start.

1. System and apparatus

FIG. 1 is a schematic configuration diagram showing a location information transmission device and a location information monitoring system according to an embodiment of the present invention.
The position information transmission device 1 includes a positioning unit 101, a transmission interval table 102, a transmission interval selection unit 103, a transmission control unit 104, a position information transmission unit 105, and a setting information reception unit 106.
Further, by appropriately including a position information receiving unit 107, a position information recording unit 108, a setting information specifying unit 109, a setting information transmitting unit 110, and a GPS satellite 111 that provides position information to the position information transmitting device 1. A location information monitoring system is configured.

The position information transmission device 1 is a portable wireless or wired communication terminal, has a GPS reception function, and needs to be able to transmit position information and position information acquisition time wirelessly or by wire. Further, the position information transmission device 1 needs to be able to receive the transmission interval by wire, wireless, or wire.
A specific example is a mobile phone that has a GPS function and is capable of transmitting location information and location information acquisition time via a public wireless or wired line, and receiving a transmission interval. A dedicated terminal capable of wireless or wired communication may be used. When the input / output device is mounted on the position information transmission device 1 such as when it is built in a notebook personal computer, the function of receiving the transmission interval may be eliminated and data representing the transmission interval may be directly input.

The positioning unit 101 receives radio waves from a plurality of GPS satellites 111 and measures the current position of the position information transmission device 1 from the time included in the radio waves and the position information of the GPS satellites 111.

The transmission interval table 102 is a table that stores transmission intervals. The transmission interval is a parameter for determining the frequency at which the location information is transmitted wirelessly or by wire. If the location information transmission device 1 is in a region with a low degree of urgency or is in a time zone with a low level of urgency, transmission of the location information is performed. By reducing the amount of data and the power consumption of the location information transmission device 1 by increasing the interval, the location information is transmitted when the location is in a highly urgent area or in a time zone with a high urgency. The position information transmitter 1 can be easily tracked by shortening the interval. Further, since the transmission interval is extended when the same position information as that at the previous transmission is made, the additional transmission interval at the same position information can be stored.

The transmission interval selection unit 103 uses the transmission interval data stored in the transmission interval table 102 to determine transmission interval data at the current position and position information acquisition time of the position information transmission device 1 obtained by the positioning unit 101. At this time, when a plurality of transmission interval data corresponds in the transmission interval table, a value that makes the transmission interval the shortest is applied.

The transmission control unit 104 includes a transmission interval counter (SNDCNT), an identical position information counter (SMCNT), and an interval timer (1 second interval). The transmission control unit 104 mainly has three functions. The first function is a transmission interval counter (SNDCNT) management function, and the second function is a function for issuing a positional information and a positional information acquisition time transmission command to the positional information transmission unit 105, and a third function. Is an outgoing call suppression function for the same location information.
As a first function, the transmission interval counter (SNDCNT) management function compares the transmission interval (SNDINT) with the current transmission interval (NOWINT) held inside from the transmission interval data calculated by the transmission interval selection unit 103. If there is a change, the value of the current transmission interval (NOWINT) is updated with the transmission interval (SNDINT), the transmission interval counter (SNDCNT) is updated to the current transmission interval (NOWINT), and the transmission interval counter (SNDCNT) is reset. (Details will be described later). (Details will be described later.)
As a second function, in the function of issuing a transmission command of position information and position information acquisition time, the transmission interval counter (SNDCNT) is decremented every second using the built-in interval timer, and when it becomes 0 A transmission command is issued to the position information transmission unit 105. Further, after the transmission command is issued, the transmission interval counter (SNDCNT) is updated to a value obtained by multiplying the current transmission interval (NOWINT) and the same position information counter (SMCNT), and the transmission interval counter (SNDCNT) is reset (for details, see (It will be described later.)
As a third function, in the transmission suppression function at the same position information, the previous position (LSTLOC) and the current position (NOWLOC) are compared after issuing a transmission command, and if they are the same, the same position information counter ( SMCNT) is incremented, and if they are different, the same position information counter (SMCNT) is set to 1 (details will be described later).

The location information transmission unit 105 is a location information reception unit 107 located outside the device for the current location and location information acquisition time of the location information transmission device 1 acquired by the positioning unit 101 using the transmission command issued by the transmission control unit 104 as a trigger. Is transmitted by wireless or wired communication.

The setting information reception unit 106 records the transmission interval data transmitted from the setting information transmission unit 110 outside the apparatus in the transmission interval table 102.

The position information receiving unit 107 records the current position and the position information acquisition time of the position information transmission device 1 transmitted from the position information transmission unit 105 in the position information recording unit 108 in the order of the position information acquisition time.

The setting information specifying unit 109 mainly has two functions. The first function is a function for designating transmission interval data stored in the transmission interval table 102, and the second function is a function for issuing a transmission interval data transmission command to the setting information transmission unit 110.
In the function of designating the transmission interval data, the transmission interval corresponding to the area where the location information transmission device 1 is monitored and the time zone where the location information transmission device 1 is monitored are designated. For example, two points are designated on the map, and a rectangular area surrounded by the two points is targeted. Further, the time zone of the target rectangular area is designated, and the position information sending interval when the position information sending device 1 exists in the designated time zone of the target rectangular area is inputted. The transmission interval data input in this way is stored in the transmission interval table 102 via the setting information transmitting unit 110 and the setting information receiving unit 106.

In addition, instead of the setting information receiving unit 106, the setting information transmitting unit 110, and the setting information specifying unit 109, the position information transmitting device 1 includes the setting information specifying unit 109 or an appropriate input unit, and one of these is used. The transmission interval table 102 may be set by input.
In addition, the position information transmission unit 105 and the position information reception unit 107 may be omitted, and the position information transmission device 1 may include the position information recording unit 108.

FIG. 2 is a schematic diagram showing an area where the position information transmitting apparatus 1 according to the embodiment of the present invention is monitored.
X1Y1 and X2Y2 in FIG. 2 define a rectangular target area with two points on the diagonal line of the XY coordinate system. GPS position data is generally expressed in north latitude (YY degrees YY minutes YY.YYYY seconds) and east longitudes (XX degrees XX minutes XX.XXXX seconds), but in this embodiment (X, Y) for ease of explanation. ). In this embodiment, as an example, region 1, region 2, and region 3 are defined, and undefined regions are defined as regions and others.

FIG. 3 is a schematic diagram showing transmission intervals for each time zone of region 1 where position information transmission device 1 according to the embodiment of the present invention is monitored.
In this example, T in FIG. 3 indicates a time axis, and the start point A and the end point B of the arrow define a time zone expressed in 24 hours. In this embodiment, as an example, time zone 1, time zone 2, and time zone 3 of region 1 are defined, and an undefined time zone is set as a time zone and the like.

FIG. 4 is a correspondence diagram of a table showing the transmission interval data of each region and time zone in the transmission interval table 102.
“*” In the table value is a symbol indicating that all are targeted, and “−” is a symbol indicating undefined. In order to obtain the current transmission interval of the target area, the transmission interval defined in the corresponding time zone of the corresponding area is acquired using the current position information of the position information transmission device 1 and the current position information acquisition time as keys. If either the target area or the target time zone is not defined, or if neither the target area or the target time zone is defined, the transmission interval of the undefined item is applied. Conversely, when multiple transmission intervals are applicable, the minimum transmission interval is applied. In this example, the initial value of the transmission interval in the undefined state is 10 seconds, and the transmission interval setting unit is seconds.
For example, when the current position information of the position information transmission device 1 is (0.5, 0) and the current position acquisition time is 2011/3/1 (Tue) 12:00: 00 The time zone 2 and the transmission interval are 600 from the position acquisition time. When the position information of the position information transmission device 1 is acquired again after 600 seconds, the current position information is (1, 1.5) and the current position acquisition time is 2011/3/1 (Tue) 12:10:00. Since the current position information is region 2, the current position acquisition time 12:10:00 is undefined, so the transmission interval is 10.
When the current position information of the position information transmission device 1 is (1.5, 1.5) and the current position acquisition time is 2011/3/1 (Tue) 20:30: 00 Since the current position acquisition time is Tuesday, the time zone 2 and the transmission interval are 1800. At this time, if the current position acquisition time is 2011/3/2 (Wednesday) 20:30: 00, it becomes region 2-time zone 1 and the transmission interval is 500.
Similarly, if the current position information of the position information transmission device 1 is (−2, 2.5) and the current position acquisition time is 2011/3/10 (Thurs) 20:30: 00, the region 3—time zone 1 is obtained. The transmission interval is 100. However, if the current position acquisition time is 2012/3/10 (Sat) 20:30, it is undefined and the transmission interval is 10.

FIG. 5 is an explanatory diagram partially showing GPS data received from the GPS satellite by the position information transmitting apparatus 1. The GPS data includes information such as observation time, coordinate information (X, Y), GPS quality, number of used satellites, vertical positioning error, altitude above sea level.

2. Action

FIG. 6 is a flowchart showing the operation of the position information transmission device 1.
Hereinafter, the operation of the position information transmission device 1 will be described. In the following description, the user uses an input unit such as a button and a liquid crystal display mounted on the position information transmission device 1 or from the external setting information specifying unit 109 via the setting information transmitting unit 110 and the setting information receiving unit 106. Each setting can be operated and confirmed.

FIG. 8 is a flowchart of the initialization process.
First, the transmission interval selection unit 103 checks whether the transmission interval table 102 is set (S601), and if not, sets the transmission interval (SNDINT) in the undefined area of the transmission interval table 102 to 10 Set. (S602)
Second, the transmission interval selection unit 103 initializes all the counters and variables. (S603 to S608) The transmission interval counter (SNDCNT) is 0 (S603), the transmission interval (SNDINT) is 0 (S604), the current transmission interval (NOWINT) is 0 (S605), and the same position information counter (SMCNT) is 1 (S606), the previous position (LSTLOC) is set to (0, 0) (S607), and the current position (NOWLOC) is set to (0, 0) (S608).

FIG. 9 is a flowchart of the transmission interval data update process.
Thirdly, the transmission interval selection unit 103 confirms whether transmission interval data is received from the setting information reception unit 106 (S609), and if received, sets the transmission interval data in the transmission interval table 102. (S610)
In this embodiment, a rectangular target area is defined by two points on the diagonal line of the XY coordinate system in the external setting information specifying unit 109, and the time axis T of the target area is (year, month, day, The interval between the start point A and the end point B is defined as the target time zone in the format of hour, minute, second, day of the week), and the transmission interval is specified for the target time zone in the target area. At this time, “*” is a symbol indicating that all the objects are targeted.
For example, for the target area of area 1 in FIG. 2, two coordinates (1, −1) and (−1, 1) are input as (X1, Y1) and (X2, Y2) shown in FIG. 4. For the target time zone of region 1 in FIG. 3, three time zones are set for region 1. Since the region 1-time zone 1 shown in FIG. 4 is from 0: 0: 0 without specifying the date and day of the week to 8:59:59, the start point A is (*, *, *, 0, 0). , 0, *), (*, *, *, 8, 59, 59, *) as the end point B, and 3600 as the transmission interval. Similarly, enter (*, *, *, 9, 0, 0, *) as A in region 1-time zone 2, and enter (*, *, *, 20, 59, 59, *) as B, and send interval , 600, enter (*, *, *, 17, 0, 0, *) as A in region 1-time zone 3, and enter (*, *, *, 21, 59, 59, *) as B Enter 100 as the interval.

Returning to FIG. 6, fourthly, the positioning unit 101 acquires the current position information (X, Y) of the position information transmission device 1 based on the GPS data received from the GPS satellite group 111. (S611)

FIG. 10 is a flowchart of the transmission interval determination process.
Fifth, the transmission interval selection unit 103 inputs the current position (X, Y) of the position information transmission device 1 obtained in step S611 from the positioning unit 101, and the transmission interval table 102 set in steps S609 to S610. , The corresponding transmission interval value is obtained from the current position and the current time of the position information transmission device 1, and set to the transmission interval (SNDINT). (S612)
Sixth, the transmission interval selection unit 103 compares the current transmission interval (NOWINT) with the transmission interval (SNDINT) acquired in step S612 (S613), and when the values are different (S613: NO), (NOWINT) is updated with the value of the transmission interval (SNDINT). (S614) Further, the transmission interval selection unit 103 updates the value of the same position information counter (SMCNT) to 1 (S615), and sets the transmission interval counter (SNDCNT) to the same position information counter (SMCNT) of the current transmission interval (NOWINT). ) Update to double value. (S616) At this time, since the same position information counter (SMCNT) is updated to 1 in step S615, the current transmission interval (NOWINT) and the transmission interval (SNDINT) are substantially the same value. If there is no change in the transmission interval in step S613, steps S614 to S616 are skipped.

FIG. 11 is a flowchart of the transmission interval counter maximum value check process.
Further, the transmission interval selection unit 103 determines whether or not the transmission interval counter (SNDCNT) set in step S616 exceeds the maximum value (S617), and if it exceeds (S617: YES), the transmission interval counter (SNDCNT). ) Is updated to the maximum value. (S618) Here, for example, 43200 seconds (12 hours) is assumed as the maximum value.
For example, if the current position of the position information transmission device 1 is (0.5, 0.5), the current position acquisition time is 2011/3/1 (Tue) 12:00:00, and immediately after the start of processing, step S612 Since the transmission interval (SNDINT) is 600 and the current transmission interval (NOWINT) is initialized to 0 in step S605, the comparison is made NO in step S613, and the current transmission interval (NOWINT) is 600, which is the same position information counter. In (SMCNT), 600 is set in the transmission interval counter (SNDCNT).

FIG. 12 is a flowchart of the position information transmission process.
Seventh, the transmission interval selection unit 103 determines whether the value of the transmission interval counter (SNDCNT) is 0 (S619). If the value is 0 (S619: YES), the transmission control unit 104 transfers to the location information transmission unit 105. A position information transmission command is output. (S620)

In step S620 and the like, when the location information transmission unit 105 receives a location information transmission command from the transmission control unit 104, the location information reception unit 107 transmits the current location of the location information transmission device 1 included therein via a wireless or wired public line. Send to. The position information receiving unit 107 records the received current position of the position information transmitting device 1 in the position information recording unit 108 in time series.

FIG. 13 is a flowchart for starting the same position information transmission suppressing process.
Further, the transmission interval selection unit 103 acquires the current position (NOWLOC) of the position information transmission device 1 from the GPS data acquired in step S611 (S622), and compares the previous position (LSTLOC) (S622). When the values are the same (S623: YES), the transmission interval selection unit 103 increments the same position information counter (SMCNT). (S624) When the values are different in step S623 (S623: NO), the transmission interval selection unit 103 updates the same position information counter (SMCNT) to 1 (S625) and sets the previous position (LSTLOC) value to the current position (S625). NOWLOC). (S626)

Returning to FIG. 12, thereafter, the transmission interval selection unit 103 updates the transmission interval counter (SNDCNT) to a value that is the same position information counter (SMCNT) times the current transmission interval (NOWINT). (S621)
Furthermore, as shown in FIG. 11, the transmission interval selection unit 103 determines whether or not the transmission interval counter (SNDCNT) set in step S616 exceeds the maximum value (S617), and exceeds (S617: YES). ), The transmission interval counter (SNDCNT) is updated to the maximum value. (S618)
For example, the previous position (LSTLOC) is (0.5, 0.5), the current position (NOWLOC) is (0.5, 0.5), the same position information counter (SMCNT) is 1, and the current transmission interval ( If the transmission interval counter (SNDCNT) is 0 in the state of “NOWINT” and transmission interval (SNDINT) 600, since the transmission interval counter (SNDCNT) is 0 in step S619, the previous position (LSTLOC) and the current position are determined in step S623. Since the position (NOWLOC) is the same, the position information transmission in step S620 is performed. After that, in step S623, the previous position (LSTLOC) and the current position (NOWLOC) are the same, so the same position information counter (SMCNT) is updated to 2. In order to update the previous position (LSTLOC) to the current position (NOWLOC), the transmission interval counter SNDCNT) is updated to 1200 multiplied by 2 600 at the same position information counter of the current outgoing interval (NOWINT) (SMCNT).
As a result, when the position has not changed since the previous transmission of position information, the transmission interval is automatically extended.
In addition, instead of using location information for the determination of the same location, the region corresponding to the location information is used, and when there is no change in the region depending on whether the region is the same, a process for realizing automatic extension of the transmission interval is performed. You may do it.

Returning to FIG. 6, eighthly, the transmission interval counter (SNDCNT) is decremented (S627) by an interval timer (not shown) with a period of 1 second. (S628)
For example, when the current position of the position information transmission device 1 is (0.5, 0.5) and the current position acquisition time is 2011/3/1 (Tue) 12:00:00, The same position information counter (SMCNT) is decremented from 600, and position information transmission from the transmission control unit 104 to the position information transmission unit 105 is executed 600 seconds later (10 minutes later). If it does not move from the current position, the same position information counter (SMCNT) is incremented every time position information transmission is executed, and the transmission interval counter (SNDCNT) increases to 600, 1200, 1800. It will be followed.

Finally, when the use stop of the position information transmitting apparatus 1 is instructed, the above-described operation is ended (step S629: YES).

In addition, since the above transmission interval setting function changes the transmission interval according to the current position of the location information transmission device 1 and the current position acquisition time, the region and time zone assumed as the action range of the monitoring target are set. It needs to be set appropriately. The detailed procedure for calculating the transmission interval (SNDINT) in step S612 will be described below.

FIG. 7 is a flowchart showing a detailed procedure for calculating a transmission interval (SNDINT).
First, the transmission interval selection unit 103 initializes a work variable transmission interval work (SNDINTWK) that stores the current position of the position information transmission device 1 and the minimum value of the transmission interval at the current position information acquisition time to 99999. (S701) This value is set to a value larger than the maximum value of the transmission interval, and is not set other than the initial value.
Second, the transmission interval selection unit 103 acquires data for one record from the transmission interval table 102 (S702), and the current position (X, Y) acquired by the positioning unit 101 is acquired from the transmission interval table 102. It is determined whether it is included in the position information range of the record. (S703) For example, when the current position is (0.5, 0.5), the determined records are region 1-time zone 1, region 1-time zone 2, region 1-time zone 3, region 2-time zone. 1 and region 2-time zone 2 are applicable.
When the position information of the target record corresponds in step S703 (S703: YES), the transmission interval selection unit 103 compares the time zone of the same record with the current time and determines whether it is included in the target time zone of the target record. . (S704)
For example, if the position information acquisition time is 2011/3/10 (Thu) 20:30: 00, if the determination in both steps S703 and S704 is limited to YES records, region 1-time zone 2, region 1-time zone 3 and 3 records in region 2 and time zone 2 are applicable.

Thirdly, the transmission interval selection unit 103 compares the transmission interval of the target record with the transmission interval work (SNDINTWK), and when the transmission interval of the target record has a smaller value (S705: YES), the transmission interval work (SNDINTWK) Is updated to the sending interval of the target record. (S706) For example, when the target record is region 1-time zone 2, since the transmission interval work (SNDINTWK) is set to the initial value 99999, step S705 is YES, and in step S706, the transmission interval work (SNDINTWK) Is updated to 600.
Fourth, the transmission interval selection unit 103 determines whether or not the last record of the transmission interval record 102 is the target. (S707) If the process has not been executed up to the last record (S707: NO), the process returns to step S702 to target the next record. If the process has been executed up to the last record (S707: YES), the transmission interval selection unit 103 determines whether the transmission interval work (SNDINTWK) is the same as the initial value of 99999. (S708)
When the transmission interval work (SNDINTWK) is the same as the initial value (S708: YES), the transmission interval selection unit 103 determines that the current position and the current position information acquisition time are not included in the transmission interval table 102. The transmission interval (SNDINT) is updated with other transmission intervals. (S709) When the transmission interval work (SNDINTWK) is not the same as the initial value (S708: NO), the transmission interval selection unit 103 updates the transmission interval (SNDINT) to the transmission interval work (SNDINTWK). (S710)

3. effect

According to the above embodiment, the following effects can be obtained.

First, a table for defining a transmission interval is prepared in the position information transmission device 1, and transmission of position information is transmitted wirelessly or by wire from the position information transmission unit 105 to the external position information reception unit 107 according to the current position and time. Since the interval can be changed, even if the location information transmission device 1 is a constant transmission type, the transmission interval is widened in the time zone that does not require monitoring even at the same position, and the power consumption of the location information transmission device 1 is reduced. The capacity of the recording unit 108 can be reduced. Further, by narrowing the transmission interval in a time zone where priority monitoring is necessary, the accuracy of the position information of the monitoring target can be increased.
Similarly, even if the time zone is the same, the transmission interval can be changed depending on the position of the monitoring target. Furthermore, since a plurality of transmission intervals can be defined for a specific time zone in a specific area, settings can be made by flexibly changing the area and time zone.
For example, when climbing, increase the transmission interval until the scheduled time of descent, and reduce power consumption, but if you are in the climbing area after the planned date of descent, you should be able to narrow the transmission interval to help search because there is a possible distress. This setting is a unique feature of the present invention in which the transmission interval can be controlled by a combination of the mountain climbing area and the descent time.
Also, the school students should bring them to high-risk locations such as boiler rooms and incinerators, late-night school areas, non-summer pools, test room staff rooms, etc. It is also possible to make a setting such as narrowing the transmission interval when deviating from the transportation route and after the estimated arrival time.

Secondly, when the position has not moved since the previous transmission, the function of temporarily suppressing the transmission interval reduces the number of times the position information is transmitted at the same position, thereby suppressing the power consumption of the position information transmission apparatus 1 and The capacity of the position information recording unit 108 can be reduced. Furthermore, it is possible to reduce the situation where the same position information is arranged at the time of tracking the position information and improve the visibility. In addition, since this function can provide a constant transmission suppression effect without setting the transmission interval setting accuracy strictly, it is possible to save the user from setting the transmission interval. Even if the transmission interval is temporarily suppressed, if the transmission interval changes due to the time zone, the transmission interval will be released even if there is no change in the location information. Can accommodate changes.

Further, in the present embodiment, the configuration in which data from the GPS satellite group 111 is used for positioning of the position information transmission device 1 is described. However, information necessary for positioning is not limited to GPS data. The current position may be determined by obtaining the distance to the base station by three-point positioning based on radio waves from the base station. The region is specified by two rectangular diagonal points, but it is specified by a polygon defined by connecting three or more points, a circle defined by a center point and a radius, or on a map such as GOOGLEMAP. A method is also conceivable in which a target area is designated with a mouse and transferred to the position information transmitting apparatus 1. In addition to inputting the numerical value of the time zone, the method of filling the target period of the calendar or clock, the position information transmitter 1 is calculated from the location information history of the location information recording unit 108, and the frequency of the location information transmission device 1 exists, A method of automatically adjusting the transmission interval according to the frequency is also conceivable.
In addition, when the transmission interval is changed, when entering the hazardous area, when the specified time elapses, or when the transmission interval is set below a certain level, a warning sound is emitted from the location information transmission device 1 to the owner. It may be possible to prompt a warning or to send a warning mail to an administrator or a user.
In addition, in this embodiment, the setting information designating unit is prepared outside the location information transmission device 1 in consideration of convenience when the user sets the transmission interval, and transmits the setting information to the location information transmission device 1. However, the setting information transmitting device 1 can be built in the position information transmitting device 1 or can be prepared inside and outside the position information transmitting device 1.
The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from or changing the technical idea of the present invention.

In the above description, the position information transmitting device can be configured to perform wireless communication or wired communication with the position information receiving unit and / or the setting information transmitting unit through the wireless communication network or the wired communication network.
Further, the data transmitted by the position information transmission device can include position information or both position information and acquisition time.

Position information transmission device 1, positioning unit 101, transmission interval table 102, transmission interval selection unit 103, transmission control unit 104, position information transmission unit 105, setting information reception unit 106, position information reception unit 107, position information recording unit 108, Setting information specifying unit 109, setting information transmitting unit 110, GPS satellite group 111

Claims (8)

A positioning unit for acquiring the position information of the device itself and the acquisition time at which the position information was acquired;
Against the region and time zone, and transmitting interval table storing outgoing between sending pre Symbol position information acquisition time,
Based on the location information and the acquisition time acquired by the positioning unit, the transmission interval table is referred to, and one or more regions defined for the location information and the time zone corresponding to the acquisition time are defined. A transmission interval selector for obtaining a plurality of transmission intervals;
When a transmission timing based on the calling interval determined by the originating interval selector, the outgoing call control part for performing control to transmit the acquired time and the position information,
Under the control of the outgoing call control part includes a location information transmitting unit that transmits the acquisition time and the position information,
When a plurality of transmission intervals are obtained, the transmission interval selection unit applies a minimum transmission interval from among them,
When the location information transmission unit transmits the location information and the acquisition time, the transmission control unit determines that the current transmission interval is the same as the previous transmission location information or region and the current transmission location information or region. And the next transmission interval to the value obtained by multiplying the same position information or the value according to the time located in the area,
When the next transmission interval exceeds a predetermined maximum value, the transmission control unit updates the next transmission interval to the maximum value.
A position information transmission device characterized by that .
In the position information transmission device according to claim 1 ,
The transmission interval table includes transmission interval data in which a transmission interval smaller than other transmission intervals is set for a region and a time zone for all or an undefined region and time zone. Position information transmitter.
In the position information transmission device according to claim 1 or 2 ,
The call interval table is
By external setting information designation part or other input part,
The target area is defined by a rectangle defined by two points on the diagonal line of the XY coordinate system,
For the time axis T of the target area, the target time zone depends on the time point between the start point and end point of the time axis determined by any one of year, month, day, hour, minute, second, and day of the week. Define
A position information transmitting apparatus characterized in that a plurality of inter-transmission data for designating transmission intervals for the target area and the target time zone are stored.
In the position information transmitter according to any one of claims 1 to 3 ,
Furthermore, a setting information receiving unit for receiving a plurality of transmission interval data representing transmission intervals for the region and time zone to be set in the transmission interval table from an external device,
The transmission interval selection unit sets the transmission interval data received from the external device by the setting information reception unit in the transmission interval table.
In the position information transmitter according to any one of claims 1 to 4 ,
An input unit configured to receive a plurality of transmission interval data representing a transmission interval for a region and a time zone set in the transmission interval table;
The transmission interval selection unit sets the transmission interval data input from the input unit in the transmission interval table.
A position information transmitting device according to any one of claims 1 to 5 ;
A position information receiver that receives the position information and the acquisition time from the position information transmitter;
A position information recording unit for recording the position information received by the position information receiving unit and the acquisition time;
A location information monitoring system.
A position information transmitting device according to any one of claims 1 to 5 ;
A setting information specifying unit for setting a plurality of transmission interval data representing transmission intervals for a region and a time zone to be set in the transmission interval table of the position information transmission device;
A position information monitoring system comprising: a setting information transmitting unit configured to transmit a plurality of the transmission interval data determined by the setting information specifying unit to the position information transmitting device.
Acquire the location information of the device itself and the acquisition time when the location information was acquired,
Based on the position information acquired by measuring position unit and acquisition time, with respect to the region and time zone, with reference to the outgoing interval table storing outgoing between sending pre Symbol position information acquisition time, corresponding to the position information Determining one or a plurality of transmission intervals defined for the area to be and the time zone corresponding to the acquisition time,
If multiple call intervals are required, apply the minimum call interval from among them,
When a transmission timing based on the determined metadata the originating interval, performs control of transmitting the acquisition time and the position information,
In accordance with the control, and transmits the acquisition time and the position information,
When transmitting the position information and the acquisition time, if the previously transmitted position information or area and the position information or area transmitted this time are the same, the current transmission interval and the time located in the same position information or area Set the next transmission interval to the value multiplied by the corresponding value,
The position information transmission interval optimization method for updating the next transmission interval to the maximum value when the next transmission interval exceeds a predetermined maximum value .

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