JP2004295736A - Mobile communication device, traffic jam information generation device, mobile communication method, traffic jam information generation/transmission method, program, and computer-readable storage medium recording the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily generate and provide precise nationwide traffic jam information at a low cost. <P>SOLUTION: This device comprises a traffic jam determination part 230 for determining whether or not a mobile body is located in a traffic jam, a GPS receiving part 210 for receiving GPS information of the mobile body from a satellite, a position calculation part 220 for calculating the position coordinate of the mobile body based on the GPS information, a conversion part 240 for converting the traffic jam determination result and the position coordinate of the mobile body to radio waves, and a transmitting part 250 for transmitting the radio waves converted by the conversion part 240 through the satellite. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mobile communication device or a traffic congestion information generation device. In addition, the present invention relates to a program for causing a computer to execute a method related to the device or a process related to the device, or a computer-readable recording medium storing the program.
[0002]
[Prior art]
Conventionally, a sensor installed on the road has recognized the occurrence and elimination of traffic congestion in a specific area at a center.
[0003]
Further, the following means are described in the literature for the purpose of providing a congestion detection system capable of constructing nationwide congestion information simply and inexpensively without installing a vehicle detection sensor on a road. A position detecting unit mounted on a plurality of vehicles traveling on a road and detecting a current position; a mobile communication terminal capable of transmitting the current position information detected by the position detecting unit in a non-contact manner; A mobile communication unit capable of receiving position information transmitted from a mobile communication terminal of the vehicle, a position information management computer for collecting and managing the position information transmitted from each vehicle via the mobile communication unit, The position information management computer detects traffic congestion based on the collected position information of each car. The congestion detection method in the position information management computer detects congestion based on the magnitude of a change in position information of the same automobile during a predetermined time (see Patent Document 1).
[0004]
Further, as a technology relating to satellite communication using a long elliptical orbit satellite, the following means aiming at enabling continuous communication for 24 hours even under the influence of a mountain shadow, a building shadow, etc. are described in the literature. . By sending a rescue request signal from a terminal in the event of a distress or accident, a climber with a terminal device can make a rescue request to a rescue center, such as the police or fire department, via a long elliptical orbit satellite. In the above, the position of a climber can be specified by position information data from a GPS satellite (see Patent Document 2).
[0005]
[Patent Document 1]
JP 2001-155290 A
[Patent Document 2]
JP 2001-069059 A
[0006]
[Problems to be solved by the invention]
When collecting traffic information from all over the country to collectively manage road traffic in order to reduce traffic congestion in addition to collecting traffic congestion information for a specific area, using a sensor installed on the road as in the conventional technology However, there is a problem that it is necessary to install sensors on roads nationwide, and it is expected that enormous costs will be required in terms of man, material and time.
[0007]
Further, as in the technology described in Patent Document 1, if the traffic jam is detected based on the magnitude of the change in the position information of each collected vehicle at a predetermined time, it is simply determined whether the vehicle is really in a traffic jam or stopped. There was a problem that it was not possible to judge whether the vehicle was just stopped or just stopped due to a failure.
[0008]
Further, even if a satellite link is used as in the technique described in Patent Document 2, the above problem cannot be solved.
[0009]
An object of the present invention is to generate accurate congestion information.
[0010]
An object of the present invention is to provide accurate traffic jam information.
[0011]
SUMMARY OF THE INVENTION An object of the present invention is to generate nationwide congestion information simply and inexpensively.
[0012]
[Means for Solving the Problems]
A mobile communication device according to the present invention is installed in a mobile, a traffic jam determination unit that determines whether the mobile is located in a traffic jam,
A receiving unit that receives GPS (Global Positioning System) information of the moving object from a satellite,
A position calculation unit that calculates position coordinates of the moving object based on the GPS information received by the reception unit;
A conversion unit that converts the result determined by the congestion determination unit and the position coordinates of the moving object calculated by the position calculation unit into radio waves,
A transmitting unit that transmits the radio wave converted by the converting unit via a satellite;
It is characterized by having.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
FIG. 1 is a diagram showing a configuration of a system according to the first embodiment.
In FIG. 1, a mobile unit 201 and a road traffic information collection management center 101 perform satellite communication via a quasi-zenith satellite 500. On the road traffic information collection and management center 101 side, the road traffic information collection and management center 101 receives the satellite information received by the gateway 400 from the quasi-zenith satellite 500 via the network 1. When transmitting, the route is the reverse. The mobile unit 201 receives GPS information and positioning correction data from a combination of the quasi-zenith satellite 500 and three or more GPS (Global Positioning System) satellites 300.
[0014]
FIG. 2 is a diagram showing a technology planned in the future.
In FIG. 2, the quasi-zenith satellite 500 orbits 35800 km above the ground so that the inclination angle of the quasi-zenith satellite is about 45 degrees from the equatorial plane once a day according to the rotation of the earth. Further, as an example, three quasi-zenith satellites 500 are arranged so as to be separated by 120 degrees at the ascending intersection of the right ascension (the intersection with the equatorial plane).
FIG. 3 is a diagram showing a technology planned in the future.
FIG. 3 shows the trajectory of the quasi-zenith satellite 500 in FIG. 2 when the ground is fixed. As shown in FIG. 3, the quasi-zenith satellite 500 orbits so as to draw a “figure of eight” having an intersection on the equator. The three quasi-zenith satellites 500 have different orbital planes, but are continuously located over Japan so that they alternate every eight hours. When the region is considered in Japan, there is always a quasi-zenith satellite 500 having an elevation angle of 70 degrees or more. Because it is located seamlessly over Japan, there is always a quasi-zenith satellite 500 with an elevation angle of 70 degrees or more, and when the receiver receives radio waves from the quasi-zenith satellite 500 on the ground, the radio waves are blocked even in the valley of the building There is no.
[0015]
FIG. 4 is a diagram showing a positioning system using a quasi-zenith satellite.
In FIG. 4, the positioning method is performed using four satellites. The GPS (Global Positioning System) has four satellites in six orbits with an ascending intersection tilt angle of 55 degrees and an ascending intersection longitude of 60 degrees each, and 24 satellites cover the entire earth. It is said to fulfill. The positioning method is to be performed as follows. First, the time until the radio wave emitted from any of the four satellites reaches the reception antenna 211 of the mobile communication device 200 installed on the mobile 201 is measured, and the distance to the satellite is calculated by multiplying by the speed of light C. Measure. Then, the four satellites are divided into two sets, and a rotation hyperbola having two satellites as focal points formed from a difference in distance from one set of two satellites and two satellites formed from a difference in distance from the other set of two satellites The point of intersection on the earth with the rotational hyperbola focusing on From this intersection, the position of the receiving antenna 211 of the mobile communication device 200 installed on the mobile 201 is obtained. For example, the positioning of the mobile unit 201 is performed by a combination of one quasi-zenith satellite 500 and three GPS satellites 300, or one quasi-zenith satellite 500, one geostationary satellite, and two GPS satellites 300. . Alternatively, the positioning of the mobile unit 201 is performed by a combination of the four GPS satellites 300.
[0016]
FIG. 5 is a diagram showing a configuration of a positioning system using a quasi-zenith satellite.
In FIG. 5, a GPS satellite 300 broadcasts positioning information. The quasi-zenith satellite 500 and a geostationary geostationary satellite 550 such as MTSAT (Multi-Functional Transport Statelite) having a positioning function are also GPS complementary satellites, and as positioning information, for example, differential positioning correction Broadcast high-precision positioning information including data and integrity data. Here, the positioning geostationary satellite 550 is used, but it is used as an example of a geostationary satellite, and another geostationary satellite may be used. The user uses the mobile communication device 200 to combine, for example, one quasi-zenith satellite 500 with three GPS satellites 300, one quasi-zenith satellite 500 with three geostationary satellites, or 1. Combination of one quasi-zenith satellite 500 and three satellites of the GPS satellite 300 and the positioning geostationary satellite 550, that is, position information necessary for positioning by at least four satellite groups including the quasi-zenith satellite 500 Can be obtained. Further, the position information necessary for positioning may be obtained by not only four satellites but also more satellite groups.
On the ground, a positioning information distribution center station and electronic reference points located throughout the country are located. The electronic reference point has its own reference position as a fixed point. For example, the electronic reference points arranged nationwide cover the whole country with an electronic reference point network as a single mesh surrounding a range surrounded by a plurality of adjacent electronic reference points. Electronic reference points located throughout the country obtain position information necessary for positioning by the above-mentioned four or more satellite groups. Then, it outputs positioning correction information such as an error between the reference position owned by itself and the position based on the position information obtained by the group of four or more satellites to the positioning information distribution center station. Here, since the whole country is covered by the electronic reference point network, the correction accuracy can be improved even at a certain position in the mesh. The positioning information distribution center station inputs positioning correction information from electronic reference points located throughout the country, collects and integrates the input positioning correction information, creates collected integrated information, and generates quasi-zenith via a predetermined antenna. Transmit to satellites such as satellite 500. The quasi-zenith satellite 500 or the like broadcasts high-precision positioning information based on the collected integrated information transmitted from the positioning information distribution center station to a satellite such as the quasi-zenith satellite 500 via a predetermined antenna.
By using at least the quasi-zenith satellite 500 having a small elevation and a high elevation angle, the user can avoid as much as possible the shielding due to being located in a mountain shadow or the like or an obstacle such as a building, and can avoid the shielding so as to obtain a positioning possible time. Can be improved. In addition, the user can obtain high-precision positioning information corrected by a system including at least four or more satellite groups including the quasi-zenith satellite 500, a positioning information distribution center station located on the ground, and an electronic reference point located nationwide. , Highly accurate position information can be obtained. As described above, by using the quasi-zenith satellite 500, the user can obtain high-accuracy position information, for example, position information on the ground with an accuracy of an error range of 25 cm.
[0017]
FIG. 6 is a diagram illustrating a configuration of the mobile communication device according to the first embodiment.
6, a mobile communication device 200 includes a GPS receiving unit 210, a position calculating unit 220, a congestion determining unit 230, a congestion information request packet generating unit 235, a converting unit 240, a transmitting unit 250, a receiving unit 255, an output unit 256, The storage unit 260 includes the antennas 211 and 251. The mobile communication device 200 is arranged or installed on the mobile 201.
[0018]
The traffic congestion determining unit 230 determines whether the moving body 201 is located under traffic congestion.
[0019]
The storage unit 260 stores road map information with an accuracy capable of identifying where on the road the mobile unit 201 is located.
[0020]
As an example of the receiving unit, the GPS receiving unit 210 receives the GPS information of the mobile unit 201 from the satellite group via the antenna 211. The GPS receiver 210 receives a plurality of pieces of GPS information of the mobile unit 201 at different times during a predetermined period from a group of satellites. As a predetermined period, for example, GPS information is received from a satellite group every minute. The predetermined period is not limited to one minute. Other periods may be used. The GPS receiving unit 210 inputs GPS information from a plurality of satellites including the quasi-zenith satellite 500 via the antenna 211. The plurality of satellites are a combination of one quasi-zenith satellite 500 and three GPS satellites 300, a combination of one quasi-zenith satellite 500 and three geostationary satellites for positioning 550, or one quasi-zenith satellite The satellite 500 is composed of a combination of three satellites including the GPS satellite 300 and the positioning geostationary satellite 550, that is, a group of four satellites including at least the quasi-zenith satellite 500. The GPS information is input from each of a plurality of satellites. By receiving GPS information from at least four satellite groups including the quasi-zenith satellite 500, the GPS information can be received even when it is located in a shadow of a building or the like.
[0021]
The receiving unit 255 receives, for example, difference positioning correction data from the quasi-zenith satellite 500 via the antenna 251 as correction data for precise positioning. The differential positioning correction data may be received from the positioning geostationary satellite 550 in some cases. By receiving from the quasi-zenith satellite 500, it is possible to receive the differential positioning correction data even when it is located in the shadow of a building or the like. By receiving the differential positioning correction data, highly accurate position information can be obtained.
[0022]
The position calculation unit 220 calculates the position coordinates of the mobile unit 201 based on the GPS information received by the GPS reception unit 210. The position calculation unit 220 calculates a plurality of position coordinates of the moving object 201 based on the plurality of GPS information received by the GPS reception unit 210. The position calculation unit 220 corrects the position coordinates of the moving body 201 based on the difference positioning correction data received by the reception unit 255. High accuracy, for example, 25 cm class position coordinates can be obtained by the correction.
[0023]
The congestion information request packet generation unit 235 generates a congestion information request packet that stores the result determined by the congestion determination unit 230 and the position coordinates of the moving body 201 calculated and corrected by the position calculation unit 220 as data. I do.
[0024]
The conversion unit 240 converts the GPS information as radio waves received by the GPS reception unit 210 and the differential positioning correction data as radio waves received by the reception unit 255 into digital information. The conversion unit 240 converts the congestion information request packet storing the result determined by the congestion determination unit 230 and the position coordinates of the moving body 201 calculated and corrected by the position calculation unit 220 into radio waves.
[0025]
The transmitting unit 250 transmits the radio wave converted by the converting unit 240 via the quasi-zenith satellite 500 via the antenna 251.
[0026]
The congestion determination unit 230 determines whether the mobile unit is in a traffic congestion condition based on a predetermined distance based on the relative distance between the plurality of position coordinates of the mobile unit 201 calculated by the position calculation unit 220 and the predetermined period. To determine if it is located at For example, as a predetermined period, if the moving body 201 has not moved for 100 minutes or more per minute, it is determined that there is traffic.
[0027]
The traffic congestion determining unit 230 further determines that the mobile unit 201 is in a traffic congestion when the mobile unit 201 is located at the center of the lane on the road based on the road map information stored in the storage unit 260. You may be comprised so that it may be determined that it is located. For example, even if the moving body 201 has not moved for more than 100 m in one minute, it may be that the moving body 201 usually stops because of a break, a breakdown, or other reasons, so that it may have been stopped by road measurement. If the moving body 201 is located at the center of the lane, which is assumed, and if the moving distance is short, it is determined that the moving body 201 is located under traffic congestion, so that such a case can be eliminated.
[0028]
FIG. 7 is a diagram illustrating an example of the GPS information and the correction data.
FIG. 8 is a diagram illustrating an example of the own location information.
In FIG. 7, the GPS information includes satellite orbit information, satellite clock information, ionospheric correction data, and position information of other satellites. The correction data includes differential positioning correction data. The GPS receiving section 210 receives GPS information, and the receiving section 255 receives correction data.
In FIG. 8, the own position information includes X, Y, and Z coordinate positions, time, date, and map information (MAP).
[0029]
FIG. 9 is a diagram illustrating an example of the congestion information request packet.
In FIG. 9, a header such as an address, a congestion information request message, position information, a time at which the position information was acquired, and data of a congestion determination result are stored as a congestion information request packet. As a result of the traffic jam determination, for example, information of “traffic jam” or “normal” is given. However, the present invention is not limited to this, and an identification symbol or the like indicating “congestion” or “normal” may be determined in advance.
[0030]
FIG. 10 is a diagram illustrating a configuration of the road traffic information collection management device according to the first embodiment.
In FIG. 10, the road traffic information collection management device 100 (which is an example of a traffic congestion information generation device) includes a reception unit 110, a traffic congestion information creation unit 120, a traffic congestion information transmission unit 130, and a storage unit 140. The road traffic information collection and management device 100 is installed in a road traffic information collection and management center 101. However, the road traffic information collection management device 100 may be installed in the gateway 400.
[0031]
The receiving unit 110 receives, via the quasi-zenith satellite 500, the traffic jam determination result (an example of traffic information) and the position coordinates of the mobile unit 201 from the mobile communication device 200 installed in the mobile unit 201. The receiving unit 110 receives a traffic jam information request packet (an example of a traffic jam information request message) requesting traffic jam information transmitted by the traffic jam information transmitting unit 130 from the mobile communication device 200. The traffic jam information request packet stores a traffic jam information request message, a traffic jam determination result, and the position coordinates of the moving object. The mobile unit 201 (for example, a vehicle) requesting the traffic jam information is highly likely to be in a traffic jam, and receives the traffic jam information request packet from the mobile body 201 requesting the traffic jam information. Thus, information can be effectively collected.
[0032]
The storage unit 140 stores road map information.
[0033]
The traffic congestion information creating unit 120 creates traffic congestion information indicating traffic congestion based on the traffic congestion determination result received by the receiving unit 110 and the position coordinates of the moving object. The traffic congestion information creating unit 120 inputs the road map information stored in the storage unit and, based on the input road map information, based on the traffic congestion determination result, determines the position of the mobile object where the traffic congestion determination result is determined. For example, a congestion mark or a normal mark is attached to the coordinates. In other words, the traffic congestion information creating unit 120 creates a traffic congestion map as traffic congestion information by describing (inputting) the congestion position determined by the mobile communication device 200 on a road map. Alternatively, a road map that distinguishes between a congested position and a position that is not congested is created.
[0034]
The traffic congestion information transmitting unit 130 transmits the traffic congestion information created by the traffic congestion information creating unit 120 to the mobile communication device 200 that transmitted the traffic jam information request message via the quasi-zenith satellite 500.
[0035]
On the mobile side, the receiving unit 255 receives the traffic congestion information via the quasi-zenith satellite 500. Then, the output unit 256 displays the received traffic congestion information so that it can be recognized by the user, or outputs the information as voice.
[0036]
As described above, according to the first embodiment, it is possible to easily and inexpensively generate and provide accurate nationwide traffic information at low cost. In addition, by making a traffic jam determination on the mobile body side, it is possible to reduce the load on a center that manages road information nationwide. In addition, by using the quasi-zenith satellite, high-precision positioning can be performed, and information can be obtained in a wide range of positions. Further, by storing traffic information in a traffic congestion request packet and obtaining it from a mobile body, traffic congestion information can be efficiently collected.
[0037]
Embodiment 2 FIG.
FIG. 11 is a diagram illustrating a configuration of a mobile communication device according to the second embodiment.
11, the mobile communication device 200 further includes a detection unit 270 in addition to the configuration of FIG. Other configurations of the road traffic information collection management device 100 and the like are the same as those in the first embodiment.
[0038]
The detection unit 270 detects another moving object located around the moving object 201. The congestion determination unit 230 determines whether the mobile unit 201 is located in a traffic congestion based on another mobile unit detected by the detection unit 270.
For example, the detection unit 270 attaches the sensor to the outer periphery of the vehicle as an example of the moving body 201, and the traffic congestion determination unit 230 determines that the traffic is congested when the distance to the vehicle ahead is short and the distance to the road measurement is long. . During a traffic jam, it can be determined that the traffic is congested because the distance to the vehicle in front tends to be short. By setting the distance to the road measurement to be long, it is possible to eliminate the case where the vehicle is simply stopped, which is assumed when the distance to the road measurement is short.
[0039]
As described above, according to the second embodiment, in addition to the effects of the first embodiment, more accurate traffic congestion information can be generated.
[0040]
Embodiment 3 FIG.
FIG. 12 is a diagram illustrating a configuration of a mobile communication device according to the third embodiment.
12, the mobile communication device 200 is different from the configuration in FIG. 6 in that the traffic congestion determination unit 230 is not provided, and a buffer unit 280 is provided instead.
FIG. 13 is a diagram illustrating a configuration of a road traffic information collection management device according to the third embodiment.
13, the road traffic information collection and management device 100 further includes a traffic congestion determination unit 150 in addition to the configuration of FIG.
[0041]
In the third embodiment, the congestion determination is performed by the center side, not by the mobile body.
First, on the mobile unit side, the GPS receiving unit 210 receives a plurality of pieces of GPS information of the mobile unit 201 at different times for a predetermined period from a satellite group, as in the first embodiment. As in the first embodiment, for example, the GPS information is received from the satellite group every minute as the predetermined period. The predetermined period is not limited to one minute as in the first embodiment. Other periods may be used.
[0042]
The receiving unit 255 receives, for example, difference positioning correction data from the quasi-zenith satellite 500 via the antenna 251 as correction data for precise positioning, as in the first embodiment.
[0043]
The position calculating unit 220 calculates a plurality of position coordinates of the mobile unit 201 based on the plurality of GPS information received by the GPS receiving unit 210 as in the first embodiment, and calculates the position coordinates of the moving object 201 by the receiving unit 255. The position coordinates of the moving body 201 are corrected based on the reference positioning correction data.
[0044]
The buffer unit 280 accumulates a plurality of position coordinates of the moving body 201 calculated and corrected by the position calculation unit 220.
[0045]
The traffic congestion information request packet generation unit 235 generates a traffic congestion information request packet that is calculated and corrected by the position calculation unit 220 and stores a plurality of position coordinates of the mobile unit 201 stored in the buffer unit 280 as data.
FIG. 14 is a diagram illustrating an example of a traffic jam information request packet according to the third embodiment.
In FIG. 14, the congestion information request packet stores a header such as an address, a congestion information request message, a plurality of pieces of position information, and respective times at which the respective pieces of position information of the plurality of pieces of position information are obtained.
[0046]
Conversion section 240 converts GPS information as radio waves received by GPS reception section 210 and difference positioning correction data as radio waves received by reception section 255 into digital information, as in the first embodiment. The conversion unit 240 converts the congestion information request packet storing the plurality of position coordinates of the moving body 201 calculated and corrected by the position calculation unit 220 into radio waves.
[0047]
Transmitting section 250 transmits the radio waves converted by converting section 240 via quasi-zenith satellite 500 via antenna 251 as in the first embodiment.
[0048]
On the center side, the receiving unit 110 receives, from the mobile communication device 200 installed on the mobile unit 201, a congestion information request packet storing a plurality of position coordinates at different acquisition times of the mobile unit 201.
[0049]
The storage unit 140 stores road map information with an accuracy capable of identifying a position on the road where the moving body 201 is located.
[0050]
The traffic congestion determining unit 150 determines whether or not the moving object is located in a traffic congestion based on the plurality of position coordinates of the moving object received by the receiving unit 110. The traffic congestion determination unit 150, for example, based on the relative distance between the plurality of position coordinates of the moving body 201 calculated by the position calculating unit 220 during a predetermined period, the moving body in a traffic jam on a predetermined basis Determine if it is located. For example, as a predetermined period, if the moving body 201 has not moved for 100 minutes or more per minute, it is determined that there is traffic. The congestion determining unit 150 further determines that there is a congestion when the moving body 201 is located at the center of the lane on the road.
[0051]
Based on the road map information stored in the storage unit 140 and the position coordinates of the moving object received by the receiving unit 110, the traffic congestion information creating unit 120 determines whether the moving object 201 is located at the center of the lane on the road. , The traffic jam information indicating the traffic jam is created. In other words, the traffic congestion information creating unit 120 creates traffic congestion information indicating the traffic congestion when the traffic congestion determining unit 150 determines that the mobile unit 201 is located under traffic congestion.
The traffic congestion information creating unit 120 inputs the road map information stored in the storage unit 140, and generates a traffic congestion determination result for the input road map information based on the traffic congestion determination result, as in the first embodiment. For example, a congestion mark or a normal mark is attached to the determined position coordinates of the moving object. In other words, the traffic congestion information creating unit 120 creates a traffic congestion map as traffic congestion information by describing (inputting) the congestion position determined by the mobile communication device 200 on a road map. Alternatively, a road map that distinguishes between a congested position and a position that is not congested is created.
[0052]
The traffic congestion information transmitting unit 130 transmits the traffic congestion information created by the traffic congestion information creating unit 120 to the mobile communication device 200 that transmitted the traffic congestion request packet via a satellite.
[0053]
As described above, according to the third embodiment, similarly to the first embodiment, whether the vehicle as a moving object is really in the middle of a traffic jam, is simply stopped, or is stopped due to a failure. It is possible to easily and inexpensively generate and provide accurate congestion information on a nationwide scale that solves the problem that it is not possible to judge whether there is only traffic. In addition, by using the quasi-zenith satellite, high-precision positioning can be performed, and information can be obtained in a wide range of positions. Further, by storing traffic information in a traffic congestion request packet and obtaining it from a mobile body, traffic congestion information can be efficiently collected.
In addition, by performing the congestion determination on the center side, a unified congestion determination can be performed. Further, the load on the moving body can be suppressed. In other words, the individual user can be released from the cost of equipping the congestion determination unit.
[0054]
Embodiment 4 FIG.
FIG. 15 is a diagram illustrating a configuration of a mobile communication device according to the fourth embodiment.
15, the mobile communication device 200 further includes a traffic information collection unit 290 in addition to the configuration of FIG. The configuration of the road traffic information collection management device 100 is the same as that of FIG.
[0055]
The traffic information collecting unit 290 collects traffic information of the moving body 201. The traffic information collection unit 290, for example, attaches a sensor to the outer periphery of a vehicle as an example of the moving body 201, measures a distance to a vehicle ahead, a distance to a road measurement, and collects each measured distance as traffic information. I do.
[0056]
The operations of the GPS receiving section 210, the position calculating section 220, the buffer section 280, the receiving section 255, and the output section 256 are the same as those in the above embodiments.
The congestion information request packet generation unit 235 stores the traffic information of the mobile unit collected by the traffic information collection unit 290 and the plurality of position coordinates of the mobile unit 201 calculated and corrected by the position calculation unit 220. Generate an information request packet.
FIG. 16 is a diagram illustrating an example of a traffic jam information request packet according to the fourth embodiment.
In FIG. 16, the congestion information request packet stores traffic information in addition to the information shown in FIG.
[0057]
The conversion unit 240 converts the traffic information of the mobile unit 201 collected by the traffic information collection unit 290 and the position coordinates of the mobile unit calculated by the position calculation unit 220 into radio waves. Then, the transmission unit 250 transmits the radio wave converted by the conversion unit 240 via the satellite.
[0058]
On the other hand, on the center side, the receiving unit 110 receives a traffic jam information request packet storing traffic information and the position coordinates of the moving object from the mobile communication device 200 installed in the moving object 201. The traffic jam information request packet stores a traffic jam information request message for requesting traffic jam information transmitted from the mobile communication device by the traffic jam information transmitting unit.
[0059]
The traffic congestion determining unit 150 determines whether or not the mobile unit 201 is located in a traffic congestion based on the traffic information received by the receiving unit 110 and the position coordinates of the mobile unit 201. The traffic congestion determination unit 150, for example, based on the relative distance between the plurality of position coordinates of the moving body 201 calculated by the position calculating unit 220 during a predetermined period, the moving body in a traffic jam on a predetermined basis Determine if it is located. For example, as a predetermined period, if the moving body 201 has not moved for 100 minutes or more per minute, it is determined that there is traffic. The congestion determining unit 150 further determines that there is a congestion when the moving body 201 is located at the center of the lane on the road. The congestion determining unit 230 determines that there is a congestion when the distance to the vehicle in front is short and the distance from the road measurement is long. During a traffic jam, it can be determined that the traffic is congested because the distance to the vehicle in front tends to be short. By setting the distance to the road measurement to be long, it is possible to eliminate the case where the vehicle is simply stopped, which is assumed when the distance to the road measurement is short.
[0060]
The traffic congestion information creating unit 120 creates traffic congestion information indicating the traffic congestion when the traffic congestion determining unit 150 determines that the mobile unit 201 is located under traffic congestion. In other words, the traffic jam information creating unit 120 creates traffic jam information indicating a traffic jam based on the traffic information received by the receiving unit 110 and the position coordinates of the mobile unit 201.
[0061]
The traffic congestion information transmitting unit 130 transmits the traffic congestion information created by the traffic congestion information creating unit 120 to the mobile communication device 200 via a satellite.
[0062]
As described above, according to the fourth embodiment, in addition to the effect of the third embodiment, by providing the traffic information collecting unit 290, a vehicle as a moving object can be truly congested by means different from the third embodiment. Generates and provides accurate and easy-to-use low-cost traffic congestion information on a nationwide scale that solves the problem of being unable to determine whether it is in the middle of a whirlpool, just stopped, or just stopped due to a failure. can do.
[0063]
Embodiment 5 FIG.
In each of the above embodiments, by transmitting a traffic jam information request packet from the mobile communication device 200 of the user who wants to obtain traffic jam information to the road traffic information collection management device 100, the road traffic information collection management device 100 I was getting traffic information. In the fifth embodiment, a system will be described in which the road traffic information collection and management device 100 efficiently obtains traffic information regardless of whether the user wants to obtain traffic information.
[0064]
FIG. 17 is a diagram illustrating a configuration of a road traffic information collection management device according to the fifth embodiment.
17, the road traffic information collection and management device 100 further includes an extraction unit 160 and an external device transmission unit 170 in addition to the configuration of FIG. The configuration of the mobile communication device 200 is different from the configuration in FIG. 12 or FIG. 15 in that a traffic message request packet generating unit 235 is replaced with another usage message generating unit.
[0065]
First, the mobile communication device 200 is communicating with an external device for another use via the quasi-zenith satellite 500 and the gateway 400. As another application, for example, when the mobile unit 201 on which the mobile communication device 200 is installed is a business vehicle, there is a periodic position notification for notifying the own position to the company. In particular, it is conceivable that the transportation company performs regular location contact. Alternatively, as another application, for example, communication for VOD (video on demand) is cited. This is, for example, communication of a request message for requesting distribution of a desired song to the device of the distribution company or communication of a request message requesting distribution of a new map for updating a map for GPS. To be.
[0066]
On the mobile unit 201 side, another use message generating unit generates a packet in which a plurality of position coordinates of the mobile unit 201 calculated and corrected by the position calculation unit 220 are stored in the packet of the other use message. . Alternatively, a packet storing the plurality of position coordinates of the moving object 201 calculated and corrected by the position calculating unit 220 and the traffic information of the moving object collected by the traffic information collecting unit 290 is generated. Then, the signal is converted into a radio wave by the conversion unit 240, and then transmitted by the transmission unit 250 to each external device of the transportation company or the distribution company via the quasi-zenith satellite 500.
[0067]
On the center side, the packet received by the gateway 400 is first transmitted to the road traffic information collection and management device 100, and the receiving unit 110 transmits the traffic congestion information transmitted from the mobile communication device 200 by the traffic congestion information transmitting unit 130. And the other usage message different from the traffic congestion information request message requesting the request.
[0068]
The extracting unit 160 extracts the traffic information and the position coordinates of the moving object from the other usage message received by the receiving unit 110.
Then, the external device transmitting unit 170 outputs the remaining messages from which the position coordinates of the moving object or the traffic information and the position coordinates of the moving object are extracted by the extracting unit 160 to the external message corresponding to the other use message. Send to device.
[0069]
The road traffic information collection and management device 100 determines the traffic congestion information based on the position coordinates of the moving object extracted by the extracting unit 160 or the traffic information and the position coordinates of the moving object as in the above embodiments. Generate and send.
[0070]
In FIG. 17, the traffic congestion determination is performed on the road traffic information collection management device 100 side, but the same applies to the case where the traffic congestion determination is performed in the mobile communication device 200 as in the first and second embodiments. That is, the receiving unit 110 receives the other usage message different from the traffic information request message for obtaining the traffic information transmitted from the mobile communication device 200 by the traffic information transmitting unit 130. The packet of the other usage message stores the position coordinates of the moving object and the result of the traffic jam determination.
[0071]
The extracting unit 160 extracts the traffic jam determination result and the position coordinates of the moving object from the other usage message received by the receiving unit 110.
Then, the external device transmitting unit 170 transmits the remaining message from which the extraction result of the congestion determination and the position coordinates of the moving object are extracted to the external device corresponding to the other usage message.
[0072]
The road traffic information collection and management device 100 generates and transmits traffic jam information based on the traffic jam determination result extracted by the extraction unit 160 and the position coordinates of the moving body as in each of the embodiments described above.
[0073]
FIG. 18 is a diagram illustrating an example of another usage message.
In FIG. 18, a header such as an address, traffic congestion information, and an information request message for another use are stored in the other use message. As the congestion information, for example, a plurality of position information and the acquisition time of each position information, or a plurality of position information, the acquisition time of each position information and traffic information, or the acquisition time of the position information and the position information and the congestion determination result No.
[0074]
As described above, according to the fifth embodiment, in addition to the effects of the above-described embodiments, by storing information serving as the basis of the traffic jam information in other use messages, traffic jam information can be widely and efficiently collected. Can be.
[0075]
Embodiment 6 FIG.
FIG. 19 is a diagram illustrating a configuration of a system according to the sixth embodiment.
FIG. 19 is a diagram in which the moving body 201 side is omitted.
FIG. 19 shows a configuration in which the extraction unit 160 and the external device transmission unit 170 of the road traffic information collection management device 100 in FIG. That is, the gateway 400 includes the extraction unit 440.
In addition, the transmission unit 430 transmits the position coordinates of the moving object or the traffic information and the position coordinates of the moving object in Embodiment 5 extracted by the extraction unit 440 to the road traffic information collection management device 100. . Then, when the transmitting unit 430 transmits information to the network 1, the extracting unit 440 extracts the position coordinates of the moving object in the fifth embodiment, or the traffic information and the remaining extracted position coordinates of the moving object. Is transmitted to the external device 600 corresponding to the other usage message.
[0076]
Alternatively, the transmitting unit 430 transmits the traffic jam determination result and the position coordinates of the moving object in the fifth embodiment extracted by the extracting unit 440 to the road traffic information collection management device 100. Then, when the transmitting unit 430 transmits information to the network 1, the extracting unit 440 extracts the remaining messages from which the traffic jam determination result and the position coordinates of the moving object in the fifth embodiment have been extracted to the other applications. The message is transmitted to the external device 600 corresponding to the message.
[0077]
As described above, according to the sixth embodiment, in addition to the effects of the above embodiments, the load on the center side can be suppressed. Further, the transmission to the external device 600 can be accelerated to the extent that other usage messages do not pass through the road traffic information collection management device 100. Since the transmission to the external device 600 can be made faster, in particular, for information that requires real-time properties such as a moving image or a song, the information can be accurately received by the mobile communication device, in other words, clear information.
[0078]
Embodiment 7 FIG.
FIG. 20 is a diagram illustrating a configuration of a road traffic information collection management device according to the seventh embodiment.
20, the road traffic information collection and management device 100 further includes a charging unit 190 and a mobile communication device identification unit 180 in addition to the configuration of FIG. The configuration of the mobile communication device 200 is the same as FIG. 12 or FIG.
[0079]
The charging unit 190 charges the traffic congestion information transmitted by the traffic congestion information transmitting unit 130.
The mobile communication device identification unit 180 identifies the mobile communication device 200 that has transmitted the position coordinates of the mobile object received by the receiving unit 110 or the traffic information and the position coordinates of the mobile object. For the identification, for example, an identifier for identifying the mobile communication device 200 is further stored in the congestion information request packet received by the receiving unit 110.
The charging unit 190 discounts the amount charged for the mobile communication device 200 identified by the mobile communication device identification unit 180.
[0080]
As described above, the service fee is reduced for the mobile unit that provides the information that is the basis of the traffic jam information. Some users may not want to provide their own information, but it is possible to encourage the provision of information by reducing the service fee.
[0081]
In FIG. 20, the traffic jam determination is performed on the road traffic information collection management device 100 side. However, the same applies to the case where the traffic jam determination is performed by the mobile communication device 200 as in the first and second embodiments.
That is, the mobile communication device identifying unit 180 identifies the mobile communication device 200 that has transmitted the position coordinates of the mobile and the traffic jam determination result received by the receiving unit 110. Then, the charging unit 190 discounts the amount charged for the mobile communication device 200 identified by the mobile communication device identification unit 180.
[0082]
In the seventh embodiment, for a user who does not want to provide his or her own information, a selection unit may be provided for selecting information that is the basis of the traffic jam information so as not to be stored in the packet.
[0083]
As described above, according to the seventh embodiment, in addition to the effects of the above-described embodiments, a service fee is reduced for a mobile unit that provides information on which traffic jam information is based. , You can collect a lot of traffic information.
[0084]
Embodiment 8 FIG.
FIG. 21 is a diagram illustrating a configuration of a road traffic information collection management device according to the eighth embodiment.
In FIG. 21, the road traffic information collection management device 100 further includes an information amount determination unit 181 in addition to the configuration of FIG. The configuration of the mobile communication device 200 is the same as FIG. 12 or FIG.
The information amount determining unit 181 determines the information amount of the traffic information received by the receiving unit 110. The information amount is determined based on, for example, the number of packets received by the receiving unit 110.
The charging unit 190 discounts the charged amount according to the information amount of the traffic information determined by the information amount determining unit 181.
[0085]
As described above, according to the eighth embodiment, in addition to the effects of the above-described embodiments, a service charge is provided to a mobile object that provides information based on traffic congestion information according to the amount of traffic information. By reducing the cost, more traffic information can be collected.
[0086]
In the above description, what has been described as "-unit" in the description of each embodiment can be partially or entirely constituted by a computer-operable program. These programs can be created in C language, for example. Alternatively, HTML, SGML, or XML may be used. Alternatively, the screen may be displayed using JAVA (registered trademark).
[0087]
In the above description, in the case where what is described as “-unit” in the description of each embodiment is partially or entirely configured by a computer-operable program, the mobile communication device 200 is not illustrated. Includes a CPU (Central Processing Unit) that executes a program. The CPU is connected to a ROM (Read Only Memory) (an example of a storage device), a RAM (Random Access Memory) (an example of a storage device), a radio wave / digital data converter, a communication board, a display device, It is connected to a magnetic disk device (an example of a storage device), a speaker, and the like. Similarly, the road traffic information collection management device 100 includes a CPU that executes a program, and the CPU is an example of a ROM, a RAM, a radio wave / digital data conversion device, a communication board, and a magnetic disk device (a storage device) via a bus. ) And so on.
The magnetic disk device stores an operating system (OS), a window system, a group of programs, and a group of files. The program group is executed by a CPU, an OS, and a window system.
When constituted by programs, the programs stored in the above-described program group are those executed by those described as “-unit” in the description of each embodiment. In the file group, those described as "-information" in the description of the above embodiment are stored.
In addition, what is described as “-unit” in the description of each embodiment may be realized by firmware stored in a ROM. Alternatively, the present invention may be implemented by software, hardware, or a combination of software, hardware, and firmware.
Further, a program for implementing the above-described embodiments includes a magnetic disk device, an FD (Flexible Disk), an optical disk, a CD (Compact Disk), an MD (Mini Disk), a DVD (Digital Versatile Disk), and the like. The information may be stored using a recording device using a medium.
[0088]
【The invention's effect】
According to the present invention, it is possible to generate and provide nationwide-scale traffic congestion information simply and inexpensively and accurately. In addition, by making a traffic jam determination on the mobile body side, it is possible to reduce the load on a center that manages road information nationwide. Further, by storing traffic information in a traffic congestion request packet and obtaining it from a mobile body, traffic congestion information can be efficiently collected.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a system according to a first embodiment.
FIG. 2 is a diagram showing a technology planned in the future.
FIG. 3 is a diagram showing a technology planned in the future.
FIG. 4 is a diagram showing a positioning system using a quasi-zenith satellite.
FIG. 5 is a diagram showing a configuration of a positioning system using a quasi-zenith satellite.
FIG. 6 is a diagram showing a configuration of a mobile communication device according to the first embodiment.
FIG. 7 is a diagram illustrating an example of GPS information and correction data.
FIG. 8 is a diagram showing an example of self position information.
FIG. 9 is a diagram illustrating an example of a congestion information request packet.
FIG. 10 is a diagram showing a configuration of a road traffic information collection management device according to the first embodiment.
FIG. 11 is a diagram showing a configuration of a mobile communication device according to a second embodiment.
FIG. 12 is a diagram showing a configuration of a mobile communication device according to a third embodiment.
FIG. 13 is a diagram showing a configuration of a road traffic information collection management device according to a third embodiment.
FIG. 14 is a diagram showing an example of a congestion information request packet according to the third embodiment.
FIG. 15 is a diagram illustrating a configuration of a mobile communication device according to a fourth embodiment.
FIG. 16 is a diagram showing an example of a congestion information request packet according to the fourth embodiment.
FIG. 17 is a diagram showing a configuration of a road traffic information collection management device according to a fifth embodiment.
FIG. 18 is a diagram showing an example of another usage message.
FIG. 19 is a diagram showing a configuration of a system according to a sixth embodiment.
FIG. 20 is a diagram illustrating a configuration of a road traffic information collection management device according to a seventh embodiment.
FIG. 21 is a diagram illustrating a configuration of a road traffic information collection management device according to an eighth embodiment.
[Explanation of symbols]
1 network, 100 road traffic information collection and management device, 101 road traffic information collection and management center, 110 reception unit, 120 traffic congestion information creation unit, 130 traffic congestion information transmission unit, 140 storage unit, 150 traffic congestion determination unit, 160 extraction unit, 170 external device transmission unit, 180 mobile communication device identification unit, 181 information amount determination unit, 190 charging unit, 200 mobile communication device, 201 mobile unit, 210 GPS reception unit, 211 antenna, 220 position calculation unit, 230 congestion determination Unit, 235 congestion information request packet generation unit, 240 conversion unit, 250 transmission unit, 251 antenna, 255 reception unit, 256 output unit, 260 storage unit, 270 detection unit, 280 buffer unit, 290 traffic information collection unit, 300 GPS satellite , 400 gateway, 430 transmitter, 440 extractor, 500 QZS 550 positioning geostationary satellites, 600 external device.

Claims (21)

A traffic congestion determining unit that is installed on the moving body and determines whether the moving body is located under traffic congestion;
A receiving unit that receives GPS (Global Positioning System) information of the moving object from a satellite,
A position calculation unit that calculates position coordinates of the moving object based on the GPS information received by the reception unit;
A conversion unit that converts the result determined by the congestion determination unit and the position coordinates of the moving object calculated by the position calculation unit into radio waves,
A transmitting unit for transmitting the radio wave converted by the converting unit via a satellite. The receiving unit receives, from a satellite, a plurality of pieces of GPS information of the moving object at different times during a predetermined period,
The position calculation unit calculates a plurality of position coordinates of the moving object based on the plurality of GPS information received by the reception unit,
The traffic congestion determination unit is configured to locate the mobile unit under traffic congestion on a predetermined basis based on a relative distance between a plurality of position coordinates of the mobile unit calculated by the position calculation unit and the predetermined period. 2. The mobile communication device according to claim 1, wherein it is determined whether or not the mobile communication device is a mobile communication device. The mobile communication device further includes a storage unit that stores road map information with an accuracy at which position on the road the mobile is located,
The traffic congestion determining unit further determines that the moving object is located under traffic congestion when the moving object is located at the center of the lane on the road based on the road map information stored in the storage unit. 3. The mobile communication device according to claim 2, wherein: The mobile communication device further includes a detection unit that detects another mobile body located around the mobile body,
2. The mobile communication device according to claim 1, wherein the congestion determination unit determines whether the mobile is located in a traffic congestion based on another mobile detected by the detection unit. . A receiving unit that receives the position coordinates of the moving body from a mobile communication device installed in the moving body,
A storage unit for storing road map information;
Based on the road map information stored in the storage unit and the position coordinates of the moving object received by the receiving unit, when the moving object is located at the center of the lane on the road, traffic indicating traffic congestion A traffic congestion information creating unit for creating traffic congestion information,
A traffic congestion information transmitting unit that transmits the traffic congestion information created by the traffic congestion information creating unit via a satellite. A traffic information collection unit that is installed on the moving body and collects traffic information of the moving body;
A receiving unit that receives GPS (Global Positioning System) information of the moving object from a satellite,
A position calculation unit that calculates position coordinates of the moving object based on the GPS information received by the reception unit;
A conversion unit that converts the traffic information of the mobile unit collected by the traffic information collection unit and the position coordinates of the mobile unit calculated by the position calculation unit into radio waves,
A mobile communication device comprising: a transmission unit that transmits the radio wave converted by the conversion unit via the satellite. A receiving unit that receives traffic information and the position coordinates of the moving body from a mobile communication device installed in the moving body,
A traffic congestion information creating unit that creates traffic congestion information indicating traffic congestion based on the traffic information received by the receiving unit and the position coordinates of the moving object;
A traffic congestion information transmitting unit that transmits the traffic congestion information created by the traffic congestion information creating unit via a satellite. The receiving unit receives a traffic jam information request message requesting traffic jam information transmitted from the mobile communication device by the traffic jam information transmitting unit,
8. The traffic congestion information generating device according to claim 7, wherein the traffic information and the position coordinates of the moving object are stored in the traffic congestion information request message. The receiving unit receives another use message different from the traffic jam information request message for obtaining traffic jam information transmitted by the traffic jam information transmitting unit from the mobile communication device,
8. The traffic congestion information generating device according to claim 7, wherein the traffic information and the position coordinates of the moving object are stored in the other use message. The traffic congestion information generating device further includes an extraction unit configured to extract the traffic information and the position coordinates of the moving object from another use message received by the reception unit,
An external device transmitting unit for transmitting the remaining message from which the traffic information and the position coordinates of the moving object are extracted by the extracting unit to an external device corresponding to the other use message. Item 9. The traffic congestion information generation device according to Item 9. The traffic congestion information generating device further includes a traffic congestion determining unit that determines whether the moving object is located in a traffic congestion based on the traffic information received by the receiving unit and the position coordinates of the moving object. Prepare,
8. The traffic congestion information creation unit according to claim 7, wherein the traffic congestion information creation unit creates the traffic congestion information indicating the traffic congestion when the traffic congestion determination unit determines that the moving body is located under traffic congestion. Traffic congestion information generation device. The traffic congestion information generating device further includes a charging unit that charges the traffic congestion information transmitted by the traffic congestion information transmitting unit,
A mobile communication device identification unit that identifies the mobile communication device that has transmitted the traffic information and the position coordinates of the mobile object received by the reception unit,
8. The traffic congestion information generating device according to claim 7, wherein the charging unit discounts the charged amount for the mobile communication device identified by the mobile communication device identification unit. The traffic congestion information generating device further includes a charging unit that charges the traffic congestion information transmitted by the traffic congestion information transmitting unit,
An information amount determination unit that determines the information amount of the traffic information received by the reception unit,
8. The traffic congestion information generating device according to claim 7, wherein the charging unit discounts the charged amount according to the information amount of the traffic information determined by the information amount determining unit. Using a device installed on the moving body, a traffic jam determining step of determining whether the moving body is located under traffic congestion,
A receiving step of receiving GPS (Global Positioning System) information of the moving object from a satellite;
A position calculating step of calculating position coordinates of the moving object based on the GPS information received in the receiving step;
A conversion step of converting the result determined in the congestion determination step and the position coordinates of the moving body calculated in the position calculation step into radio waves,
Transmitting a radio wave converted by the conversion step via the satellite. A receiving step of receiving position coordinates of the moving body from a mobile communication device installed on the moving body,
An input step of inputting road map information stored in the storage device from a storage device in which road map information is stored;
Based on the road map information input in the input step and the position coordinates of the moving body received in the receiving step, when the moving body is located at the center of the lane on the road, traffic indicating traffic congestion A traffic congestion information creation process for creating congestion information,
A traffic congestion information transmitting step of transmitting, via a satellite, the traffic congestion information created in the traffic congestion information creating step. Using a device installed on the moving body, a traffic information collecting step of collecting traffic information of the moving body,
A receiving step of receiving GPS (Global Positioning System) information of the moving object from a satellite;
A position calculating step of calculating position coordinates of the moving object based on the GPS information received in the receiving step;
A conversion step of converting the traffic information of the moving body collected by the traffic information collecting step and the position coordinates of the moving body calculated by the position calculation step into radio waves,
Transmitting a radio wave converted by the conversion step via the satellite. A receiving step of receiving traffic information and the position coordinates of the moving body from a mobile communication device installed in the moving body,
A traffic congestion information creating step of creating traffic congestion information indicating traffic congestion based on the traffic information and the position coordinates of the moving object received in the receiving step;
A traffic congestion information transmitting step of transmitting, via a satellite, the traffic congestion information created in the traffic congestion information creating step. Using a device installed in the moving body, a traffic jam determination process to determine whether the moving body is located under traffic congestion,
A receiving process of receiving GPS (Global Positioning System) information of the moving object from a satellite;
Position calculation processing for calculating position coordinates of the moving object based on the GPS information received in the receiving step;
A conversion process of converting the result determined by the congestion determination process and the position coordinates of the moving object calculated by the position calculation process into radio waves,
A program for causing a computer to execute a transmission process of transmitting the radio wave converted by the conversion process via the satellite, or a computer-readable recording medium storing the program. A receiving process of receiving the position coordinates of the moving body from a mobile communication device installed on the moving body,
Input processing for inputting the road map information stored in the storage device from the storage device in which the road map information is stored;
Based on the road map information input by the input processing and the position coordinates of the moving body received by the receiving processing, when the moving body is located at the center of the lane on the road, the traffic indicating traffic congestion Traffic jam information creation processing for creating traffic jam information,
A program for causing a computer to execute a traffic congestion information transmission process for transmitting the traffic congestion information created by the traffic congestion information creation process via a satellite, or a computer-readable recording medium recording the program. A traffic information collection process of collecting traffic information of the moving body using a device installed on the moving body,
A receiving process of receiving GPS (Global Positioning System) information of the moving object from a satellite;
Position calculation processing for calculating position coordinates of the moving object based on the GPS information received by the reception processing;
A conversion process of converting the traffic information of the mobile object collected by the traffic information collection process and the position coordinates of the mobile object calculated by the position calculation process into radio waves,
A program for causing a computer to execute a transmission process of transmitting the radio wave converted by the conversion process via the satellite, or a computer-readable recording medium storing the program. A receiving process of receiving traffic information and the position coordinates of the moving object from a mobile communication device installed in the moving object,
A traffic congestion information creating process for creating traffic congestion information indicating traffic congestion based on the traffic information received by the reception process and the position coordinates of the moving object;
A program for causing a computer to execute a traffic congestion information transmission process for transmitting the traffic congestion information created by the traffic congestion information creation process via a satellite, or a computer-readable recording medium recording the program.

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