JP3840972B2 - On-board equipment for quasi-zenith satellite, quasi-zenith satellite and quasi-zenith satellite system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a quasi-zenith satellite, a vehicle-mounted device for a quasi-zenith satellite, and a quasi-zenith satellite system.
[0002]
[Prior art]
As a method for exchanging various information with a mobile object, there are a method using a satellite, a method using a communication device installed on the road, and the like. As a method for exchanging various kinds of information between a moving body and a satellite, as described in JP-A-2001-111468, a method in which a large number of satellites are arranged in a low orbit and a high orbit are synchronized with the rotation of the earth. And a method using a synchronous orbiting satellite. The method of arranging a large number of satellites in a low orbit requires a large number of satellites, and thus costs are high. There is a geostationary satellite known as a synchronous orbit satellite, but the geostationary satellite has an elevation angle as low as 45 °. When transferring various information while moving, the geostationary satellite is obstructed by buildings, topography, etc. Various information exchanges may be interrupted. In addition, in order to exchange various information with the geostationary satellite even when the mobile body moves, a mechanism for always pointing the antenna toward the geostationary satellite is necessary. As a method for exchanging various kinds of information with a moving body, there is a method using a communication device installed on the road as described in JP-A-10-198889. However, in order to exchange various information, it is necessary to pass directly under the communication device, and in order to exchange various information even when the traveling speed of the moving body is slow due to traffic jams or the like, the communication device is installed at short distance intervals. It is necessary to install.
[0003]
As a general method for obtaining traffic information, there are methods using radio wave beacons, optical beacons, and FM multiplex broadcasting as described in IEICE Journal VOL.81, No.8, P842. You cannot receive the necessary traffic information in real time.
[0004]
According to the Institute of Electronics, Information and Communication Engineers VOL.84, NO.4, P255, the exhaust gas of diesel vehicles is about 3 times higher for nitrogen oxides and about 2 times higher for carbon dioxide when the running speed goes from 40 km / h to 5 km / h. It is shown that carbon monoxide is about 4 times higher. In other words, diesel vehicles exhaust a large amount of air pollutants at low speeds, so it is better to move them so as not to slow down as much as possible, but mobile operators do not know the next signal information, so they think The moving object is moving at speed.
[0005]
Road traffic regulation information such as road entry availability and speed limit changes from moment to moment, but the collection of information on traffic regulation is largely borne by the mobile operator.
[0006]
In order to obtain valuable information such as music data and map data, it is necessary to go to the store and purchase.
[0007]
An ETC (Electronic Toll Collection) is put into practical use as a system for transferring various information between a mobile body and a base. However, this system can exchange various information between the mobile unit and the base only in a limited area such as a toll gate.
[0008]
In the event of an accident, the police, fire department, and emergency are reported to the police, fire victims, and witnesses using public telephones, mobile phones, and the like.
[0009]
[Means for Solving the Problems]
  The communication device according to the present invention is:A positioning device for positioning its own position;
The self-position and the self-identification number measured by the positioning device, the road that the self is scheduled to travel, the point that is scheduled to pass, and the final destination information are transmitted to the quasi-zenith satellite and the transmitted A transmission / reception device that receives traffic information from the quasi-zenith satellite on the road that the driver is driving, the road that is driving, and the road that is scheduled to drive,Is provided.
[0010]
[Problems to be solved by the invention]
There is a method of using low-orbit satellites as a method of transferring various information between the mobile body and the satellites. In this case, however, it is necessary to arrange a large number of satellites, which increases costs and is not practical. It was. Further, there is a method using a synchronous orbit satellite that rotates in a high orbit in synchronization with the rotation of the earth, for example, a geostationary satellite. In this case, since the elevation angle of the satellite is as low as about 45 °, when various information is exchanged while moving, various information exchange may be interrupted by being blocked by buildings, topography and the like. In addition, in order to exchange various information with the geostationary satellite even when the moving body is moving, a mechanism for always directing the antenna in the direction of the geostationary satellite is necessary, which is expensive and is practical when considering stable communication. It was not right. There is also a method of installing a communication device on the road, but in order to exchange various information, it is necessary to pass directly under the communication device, and various information in real time even when the traveling speed of the moving body is slow due to traffic jams etc. In order to send and receive, it is necessary to install communication devices at short distance intervals, which is not realistic.
[0011]
Current methods for obtaining traffic information include methods using radio wave beacons, optical beacons, and FM multiplex broadcasting. However, necessary traffic information cannot be received in real time when necessary.
[0012]
In particular, diesel vehicles exhaust a large amount of air pollutants at low speeds, so it is better to move them so that they do not slow down as much as possible. In order to move the moving object, the stop and the movement by the signal were repeated. For this reason, a large amount of air pollutants was discharged.
[0013]
On general roads, traffic signs such as whether to enter or whether to turn right vary depending on the day of the week. In addition, on automobile-only roads, the speed limit changes depending on road conditions, for example, weather conditions such as rain, snow, and fog. The operator of the moving body has to travel while always paying attention to traffic regulation information that changes every moment depending on the day of the week. In some cases, there was a risk of overlooking traffic regulations.
[0014]
When music data and map data were required, it was necessary to get the data away from the moving body.
[0015]
In addition, the provision of information for each mobile object is limited to ETC (Electronic Toll Collection), but is limited.
[0016]
In the event of an accident, the police, fire department, and emergency were reported by the accident perpetrators, victims, and witnesses using public telephones and mobile phones. For this reason, there are delays in reporting due to accidents, delays in reporting due to the self-recognition of being reported by third parties, and delays in the arrival of police, etc. due to inability to contact the exact location of the accident. It has occurred. This delay in arrival could lead to death. Also, if the suspect escaped after the property destruction accident, it was necessary to conduct a steady investigation to secure the suspect's identity, which required enormous time and effort.
[0017]
After the trouble occurred in the mobile body, the mobile body operator contacted a dealer or the like. For this reason, there was a case where a trouble occurred during the movement. In addition, it took time to repair defects that were not reproducible.
[0018]
Although real-time weather information acquisition is desired, it has not been realized.
[0019]
In order to obtain valuable information such as music data and map data, it was necessary to obtain the valuable information away from the moving body.
[0020]
The present invention is made to solve such a problem, and by using several quasi-zenith guards located at a higher elevation angle than a geostationary satellite or the like, various information can be exchanged in real time. . In addition, since the quasi-zenith satellite has a high elevation angle, various information exchanges are not interrupted by buildings, topography, and the like. Further, since the quasi-zenith satellite has a high elevation angle and is always above, there is no need to worry about the direction of the satellite as in the case of using a geostationary satellite. As a result, there is no need to provide a communication device on the road, and no new construction is required.
[0021]
It is also possible to obtain real-time traffic information that is always necessary and stable.
[0022]
Real-time traffic signal status information and the like make it possible to travel with a small amount of atmospheric pollutant emissions such as carbon dioxide emissions and nitrogen oxide emissions.
[0023]
Since road traffic regulation information such as road entry availability and speed limits that change from moment to moment can be obtained in real time, the burden on the operator of the moving body is reduced, and road traffic regulation information is not overlooked.
[0024]
It is possible to obtain necessary music data, map data, and the like in real time without leaving the moving body.
[0025]
Information can be exchanged and billed even if the location is not limited to a plurality of individual mobile objects.
[0026]
Accident occurrences can be reported in real time along with the location of the accident to relevant ministries such as the police and fire department. In addition, the state of the operator of the moving body can be grasped in real time, and in the worst case such as cardiopulmonary arrest, it is possible to contact a nearby medical institution. Furthermore, even if the suspect escapes after destroying property damage, etc., since the collision information is transmitted to the related ministries and agencies, the suspect can be quickly secured.
[0027]
The dealer can quickly catch that the moving body is in bad condition and notify the user. Furthermore, when the moving body fails, it is possible to know the state before the failure, and it is possible to deal with a failure without reproducibility.
[0028]
It is possible to collect local weather information in real time.
[0029]
It is possible to obtain valuable information such as the latest music data and map data in real time without leaving the moving body.
[0030]
[Means for Solving the Problems]
The first aspect of the invention is a positioning device for positioning its own position, and transmitting and receiving the self-position and the identification number determined by the positioning device to the quasi-zenith satellite and receiving various information from the quasi-zenith satellite. The present invention relates to an on-vehicle device for a quasi-zenith satellite equipped with a device.
[0059]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
1 to 7 show a first embodiment of the present invention. In FIG. 1, 101 is a positioning device for positioning its own position, 102 is transmitting its own position and its identification number measured by the positioning device 101 to the quasi-zenith satellite, and various information from the quasi-zenith satellite. A receiving / transmitting device 103 for receiving is a quasi-zenith satellite vehicle-mounted device, and 201 is a quasi-zenith satellite located at a higher elevation angle than a geostationary satellite or the like. Note that the transmitting / receiving device 102 may transmit various types of information to the quasi-zenith satellite in addition to its own position and its own identification number.
[0060]
The operation of FIG. 1 will be described. The positioning device 101 measures its own position and outputs its own position information to the transmission / reception device 102. The transmission / reception device 102 transmits the self-position information of the positioning device 101, its own identification number, and in some cases, various information to the quasi-zenith satellite 201. The various types of information include collision information such as impact of a moving body, speed change amount, acceleration change amount, acceleration direction change amount, etc. caused by a collision, cooling water temperature, engine oil temperature, engine oil pressure, engine speed, turbo Status information of the mobile drive device such as pressure, the mobile operator's breathing rate, heart rate, strength information of the handle, etc., the movement of the mobile wiper, rainfall / snow, visible visibility, Information on weather conditions outside the moving body, such as humidity and outside temperature, request signals transmitted by the will of the moving body, the road on which the moving body is scheduled to travel, the point where it is scheduled to pass, and the final purpose Shows information about the ground. Here, the impact is a force that is suddenly applied to the object, and indicates the amount of energy change per unit time. The positioning of its own position may be a general method, for example, GPS (Global Positioning Systems), that is, a positioning system using an orbital altitude of about 20,000 km, a period of 12 hours, and 24 earth-orbiting satellites. Note that satellites for GPS are collectively referred to as GPS satellites. The self-identification number may be any number that does not cause confusion. For example, the identification number unique to the quasi-zenith satellite OBE, the identification number of the mobile unit equipped with the quasi-zenith satellite OBE 103, and the quasi-zenith satellite What is necessary is just to determine suitably the identification number etc. of the owner / owner of the onboard equipment 103. In addition, the modulation method, transmission frequency, transmission output, communication method, transmission data encoding method, etc. in transmission to the quasi-zenith satellite 201 only need to be able to exchange data with the quasi-zenith satellite 201, and are set appropriately according to the operation. To do. The transmission / reception device 102 receives various information from the quasi-zenith satellite 201. The reception sensitivity, the reception method, and the like for reception only need to be able to exchange data with the quasi-zenith satellite 201, and are appropriately set according to the operation.
[0061]
FIG. 2 shows an example of the ground surface trajectory of the quasi-zenith satellite 201, and 301 is an example of the ground surface trajectory of the quasi-zenith satellite. In FIG. 2, the orbit of the quasi-zenith satellite has a period of 24 hours and the orbit has an inclined orbit. As a result, in Japan, the elevation angle is about 60 ° or more, especially in metropolitan areas such as Tokyo and Osaka, and the elevation angle is about 70 ° or more, which is higher than that of a typical geostationary satellite. Yes. The elevation angle in Japan will be adjusted by appropriately adjusting the period, inclination of the orbit, etc. according to the operation. Here, the quasi-zenith satellite used in the present embodiment is a quasi-zenith satellite that is a generic term for satellites that can achieve a higher elevation angle than the elevation angle of a geostationary satellite. In addition, the quasi-zenith satellite always realizes a high elevation angle by switching and using several satellites. The quasi-zenith satellite vehicle-mounted device 103 always exchanges various information with the quasi-zenith satellite 201 having a high elevation angle, so that the exchange of various information is not interrupted by buildings, topography, and the like. For this reason, the quasi-zenith satellite vehicle-mounted device 103 can exchange various information with the quasi-zenith satellite 201 in real time. Furthermore, since the quasi-zenith satellite 201 is always above the transmission / reception device 102 of the on-vehicle device 103 for the quasi-zenith satellite, there is no need to worry about the direction of the satellite as in the case of using a geostationary satellite. The structure does not require a mechanism.
[0062]
3, 103 and 201 are the same as those in FIG. 1, 501 is a GPS satellite used for positioning, 502 to 504 are information that can be used for positioning equivalent to the GPS satellites transmitting for positioning. , 502 is a geostationary satellite orbiting in geostationary orbit, 503 is a fixed station on the ground installed on the ground, and 504 is an optical beacon installed on the road. 111 is a positioning receiver for receiving electromagnetic waves transmitted from the quasi-zenith satellite 201 and GPS satellite 501, geostationary satellite 502, ground fixed station 503, and optical beacon 504; 112 is information from the positioning receiver 111; This is a self-position calculation unit that originally calculates the self-position.
[0063]
As a general positioning method, there is a method using the GPS. However, since the GPS satellite has a low orbit, it may not be able to locate itself due to obstruction by buildings, features, etc. The fixed station 503 and the electromagnetic wave from the optical beacon 504 are received by the positioning receiver 111, and the reception result is output to the self-position calculator 112. The self position calculation unit 112 calculates the self position based on the result of the positioning reception unit 111. As a method for calculating the self-position, since information received by the positioning receiver 111 is information equivalent to information from a GPS satellite, a method similar to a system using GPS in general may be used.
[0064]
In FIG. 4, reference numeral 113 denotes a movement amount measuring unit that measures movement information such as its own acceleration, speed, acceleration direction, and speed direction. The movement amount measuring unit measures the movement amount in the three-dimensional direction by, for example, double integrating the acceleration in the three-dimensional direction on the time axis. Alternatively, the movement amount in the three-dimensional direction is measured by integrating the speed in the three-dimensional direction on the time axis. The measurement result of the movement amount measurement unit 113 is output to the self-position calculation unit 112. From the output, the self-position calculating unit 112 calculates the self-position. Note that the self-position may be determined by a method combining the methods shown in FIGS.
[0065]
In FIG. 5, 103 and 201 are the same as those in FIG. 1, 202 is a receiving device that receives the self-location information, its own identification number, and various types of information transmitted from the quasi-zenith satellite onboard unit 103, and 203 This is a transmission device that transmits various kinds of information to the on-vehicle device 103 for the zenith satellite. Various information transmitted from the transmission device 203 to the on-vehicle device 103 for the quasi-zenith satellite includes traffic information on a road on which the mobile body is traveling, a nearby road on which the mobile body is traveling, and a road on which the mobile body is scheduled to travel. , Traffic points such as planned traffic points, traffic congestion information to the final destination, traffic accident information, traffic signal status information of nearby moving objects, number of road vehicles / status information Status information, speed limit information, road traffic regulation information such as traffic sign information, valuable information such as music data and map data, weather information, position of quasi-zenith satellite onboard equipment, identification number, and other unique information A request signal or the like. The traffic light status information is information on a signal for making a stop request or the like to the moving body, and specifically, a red signal, a yellow signal, and a blue signal. The receiving device 202 and the transmitting device 203 only need to be able to exchange information with the quasi-zenith satellite-mounted device 103, and are appropriately set according to the operation. However, the receiving device 202 needs to have the ability to receive information transmitted from a plurality of quasi-zenith satellite on-board devices, and the transmitting device 203 is limited to all the quasi-zenith satellite on-vehicle devices 103. It is necessary to have a function of selectively transmitting various types of information, such as a quasi-zenith satellite vehicle-mounted device 103 in the area, a selected quasi-zenith satellite vehicle-mounted device 103, or an individual quasi-zenith satellite vehicle-mounted device 103.
[0066]
In FIG. 6, reference numerals 103 to 203 are the same as those in FIG. 5, and 204 is a part of the information received by the receiving apparatus 202 or all of the information or other information added is transmitted to the ground base, and the quasi-zenith. A terrestrial transmitter / receiver 401 that receives various kinds of information distributed to the on-vehicle device 103 for satellites, 401 is a terrestrial base that performs bidirectional communication with the quasi-zenith satellite 201. The terrestrial transmitter / receiver 204 and the terrestrial base 401 only need to be able to perform two-way communication, and the communication method and the like are appropriately set according to the operation.
[0067]
Ground base 401 regarding traffic information, road status information, road traffic regulation information, etc. (hereinafter referred to as “information due to roads”) transmitted to quasi-zenith satellite vehicle-mounted device 103 via quasi-zenith satellite 201. The operations performed in are outlined below. The traffic information mainly indicates traffic jam information and traffic accident information. The road status information mainly indicates traffic light status information (information on the status of a red signal, a yellow signal, and a green signal). The road traffic regulation information mainly indicates speed limit information and traffic sign information. The ground base 401 has two main operations. The first is the collection / judgment of information resulting from the road and the holding of the results, and the second is the information transmission to each on-vehicle device 103 for the quasi-zenith satellite via the quasi-zenith satellite 201.
[0068]
First, the collection / judgment of information resulting from the first road and the holding of the results are divided into various information such as traffic jam information, traffic accident information, traffic light status information, and road traffic regulation information. Note that the ground base 401 has map information.
[0069]
Explain traffic information. Judgment of traffic congestion may be based on general judgment criteria, but basically, traffic congestion at each point on the map is confirmed by confirming the amount of movement per hour of each mobile object shown on the map of the ground base 401. Make a decision. Each moving body is identified by an identification number from each moving body. In addition, when the mobile body cannot exchange information with the quasi-zenith satellite, such as in a tunnel, the traffic judgment may be performed using the information of the third vehicle detector installed on the road. In addition, as a 3rd vehicle detector, there exist an optical beacon, an electric wave beacon, etc. which are generally installed on the road. The result of determining that the traffic is jammed is held as traffic jam information on the map held by the ground base 401.
[0070]
Explain traffic accident information. When a traffic accident occurs, the ground base 401 collects information regarding the location of the traffic accident. The collected results are held as traffic accident information on the map held by the ground base 401.
[0071]
The traffic signal status information will be described. In general, signals at intersections on main roads are controlled by a road traffic information center or the like so as to give a long traffic right to a person with a large amount of traffic. Here, the road traffic information center and the like are part of the ground base 401. Information controlled by the road traffic information center or the like is held as traffic signal status information that changes from time to time on a map held by the ground base 401.
[0072]
The road traffic regulation information will be described. On general roads, traffic signs such as whether to enter or whether to turn right vary depending on the day of the week. In addition, on automobile roads, the speed limit changes depending on the road conditions, for example, weather conditions such as rain, snow, and fog. In this way, the information on the traffic sign and the speed limit is held as road traffic regulation information on the map held by the ground base 401.
[0073]
Next, information transmission to the quasi-zenith satellite vehicle-mounted device 103 via the quasi-zenith satellite 201 will be described.
[0074]
Explain traffic information. The traffic jam information transmitted to each quasi-zenith satellite vehicle-mounted device 103 via the quasi-zenith satellite 201 is preliminarily transmitted to the ground base 401. Based on the information on the actual destination and the traffic congestion information held by the ground base 401, the road on which each moving body is traveling, the road in the vicinity where the moving body is traveling, and the road on which the moving body is scheduled to travel Congestion information, traffic points scheduled to pass, and traffic information to the final destination are transmitted.
[0075]
Explain traffic accident information. The traffic accident information transmitted to the quasi-zenith satellite vehicle-mounted device 103 via the quasi-zenith satellite 201 is preliminarily transmitted to the ground base 401. Based on the final destination and the traffic accident information held by the ground base 401, the road on which each mobile body is traveling, the road in the vicinity where the mobile body is traveling, the road on which the mobile body is scheduled to travel, Transmit traffic accident information to the point where you plan to pass and the final destination.
[0076]
The traffic signal status information will be described. The traffic signal status information transmitted to each quasi-zenith satellite vehicle-mounted device 103 via the quasi-zenith satellite 201 is determined by the ground base 401 determining the traffic signal status information required by each mobile unit. In the determination, it is determined based on the position information and the moving direction of each moving body. As a result, the traffic signal status of a required part is transmitted among the traffic signal status information that changes every moment on the map held by the ground base 401.
[0077]
The road traffic regulation information will be described. The road traffic regulation information transmitted to each quasi-zenith satellite vehicle-mounted device 103 via the quasi-zenith satellite 201 is determined by the ground base 401 judging the road traffic regulation information required for each mobile unit. In the determination, it is determined based on the position information and the moving direction of each moving body. As a result, of the road traffic regulation information on the map held by the ground base 401, the required part of the road traffic regulation information is transmitted.
[0078]
FIG. 7 shows the data flow of the quasi-zenith satellite system. The transmitting / receiving device 102 in the quasi-zenith on-vehicle device 103 transmits the self-location information of the mobile object, the identification number, and in some cases various information to the quasi-zenith satellite 201. The receiving device 202 in the quasi-zenith satellite 201 receives information transmitted from the on-vehicle device 103 for the quasi-zenith satellite. The terrestrial transmitter / receiver 204 transmits the information received by the receiver 202, part or all of the information, or information with other information added thereto to the terrestrial base 401. The ground base 401 receives information transmitted from the terrestrial transmitter / receiver 204 of the quasi-zenith satellite 201 and transmits various information and the like to be distributed to the quasi-zenith satellite vehicle-mounted device 103 to the terrestrial transmitter / receiver 204 of the quasi-zenith satellite 201. Send. The transmission device 203 transmits information to which a part or all of the information received by the ground transmission / reception device 204 or other information is added to the quasi-zenith satellite-mounted device 103. The transmitting / receiving device 102 in the quasi-zenith satellite-mounted device 103 receives various information from the transmitting device 203.
[0079]
As described above, various information can be exchanged by using several quasi-zenith guards. In addition, since the quasi-zenith satellite has a high elevation angle, various information exchanges are not interrupted by buildings, topography and the like. Further, since the quasi-zenith satellite has a high elevation angle and is always above, there is no need to worry about the direction of the satellite as in the case of using a geostationary satellite. As a result, there is no need to provide a communication device on the road, and no new construction is required.
[0080]
Embodiment 2. FIG.
8 to 13 show a second embodiment of the present invention. In FIG. 8, reference numeral 121 denotes a map storage unit in which two-dimensional or three-dimensional map information is stored, and reference numeral 122 denotes a moving body that is transmitted from the quasi-zenith satellite 201 toward the on-vehicle device 103 for the quasi-zenith satellite. Necessary for traffic information on roads, nearby roads where moving objects are traveling, traffic information on roads where moving objects are planned, points where traffic is scheduled, traffic information to final destination, traffic accident information, etc. 123 is a traffic information determination unit that superimposes the map stored in the map storage unit 121 and the real-time traffic information 122. FIG. 8 shows one of the functions of the quasi-zenith satellite vehicle-mounted device 103. The information from the quasi-zenith satellite 201 includes part or all of the information transmitted from the ground base 401. The operation is equivalent to the processing of a general car navigation system that displays traffic information and the like. Although the display of traffic information and the like is the same as that of the prior art, real-time traffic information that is always necessary can be obtained stably from the quasi-zenith satellite 201.
[0081]
In FIG. 9, 131 is information on the state of the moving body such as the speed of the moving body and the engine speed, and 132 is the movement of the moving body transmitted from the quasi-zenith satellite 201 to the on-vehicle device 103 for the quasi-zenith satellite. Road status information such as traffic signal status information in the vicinity of the vehicle, status information of the number of following vehicles, and the like. 133 is the status information 131 of the moving body and the status information 132 of the road such as the moving body. It is a moving body speed calculation part which calculates the speed of the moving body in which air pollutant discharge | emission amount, such as a thing discharge amount, decreases. FIG. 9 shows one of the functions of the quasi-zenith satellite vehicle-mounted device 103. The information from the quasi-zenith satellite 201 includes part or all of the information transmitted from the ground base 401. According to the Institute of Electronics, Information and Communication Engineers VOL.84, NO.4, P255, the exhaust gas of diesel vehicles is about 3 times higher for nitrogen oxides and about 2 times higher for carbon dioxide when the running speed goes from 40 km / h to 5 km / h. It has been shown that carbon monoxide is about 4 times higher. In other words, since diesel vehicles exhaust air pollutants at low speeds, it is better to move them so as not to be as slow as possible. FIG. 10 shows an example of the relationship between the moving distance and time of the moving body and the relationship between the speed and time of the moving body when a general land moving body is a vehicle. Although FIG. 10 is described without considering the acceleration, it is the same even if the acceleration is considered. In FIG. 10, it is assumed that the signal is in a state of requiring a stop for 30 to 60 seconds (generally, the traffic light is in a red state). Conventionally, since the next signal state is unknown, the vehicle travels at a constant speed of 60 km / h, and after traveling for a distance of 1100 m (after 60 seconds), it stops in response to a signal stop request. Then, after stopping for 30 seconds, it starts moving again. The moving body speed calculation unit 133 changes the traveling speed from 60 km / h to 40 km / h as an example from the traffic signal status information, the self-position information, etc. in the road status information 132 without stopping the signal. Calculate that the signal part can be passed. In some cases, the moving body speed calculation unit 133 may request the speed to be increased based on the state information 131 of the moving body. According to the Journal of the Institute of Electronics, Information and Communication Engineers, VOL.84, No.4, P255, as a traffic jam mechanism in the highway single road part, a temporary speed reduction is raised in the sag part. Therefore, when calculating the speed, the moving body speed calculation unit 133 determines the speed in consideration of road status information such as the number / status information of the following vehicles, which is one of the information of the road status information 132. May be. As described above, it is possible to travel with a small amount of air pollutant emissions such as carbon dioxide emissions and nitrogen oxide emissions by information such as real-time traffic lights from the quasi-zenith satellite 201.
[0082]
In FIG. 11, 141 is real-time road traffic regulation information such as speed limit information and traffic sign information transmitted from the quasi-zenith satellite 201 to the quasi-zenith satellite vehicle-mounted device 103, and 142 is a map storage unit 121. And the real-time road traffic regulation information 141. FIG. 11 shows one of the functions of the on-vehicle device 103 for the quasi-zenith satellite. The information from the quasi-zenith satellite 201 includes part or all of the information transmitted from the ground base 401. The road traffic regulation information determination unit 142 superimposes the real-time road traffic regulation information 141 information on the map stored in the map storage unit 121. In this way, since road traffic regulation information such as road entry availability and speed limits that change from moment to moment can be obtained in real time, the burden on the mobile operator is reduced and road traffic regulation information is not overlooked. In addition, weather information can be obtained by a similar method.
[0083]
In FIG. 12, 151 is valuable information such as music data and map data transmitted from the quasi-zenith satellite 201 to the quasi-zenith satellite vehicle-mounted device 103, and 152 is a valuable information recording unit for recording the valuable information 151. . FIG. 12 shows one of the functions of the quasi-zenith satellite vehicle-mounted device 103. The information from the quasi-zenith satellite 201 includes part or all of the information transmitted from the ground base 401. The valuable information recording unit 152 records valuable information transmitted from the quasi-zenith satellite 201. The valuable information transmitted from the quasi-zenith satellite 201 is information required at the present time. Note that a recording medium and a recording method in the valuable information recording unit 152 may be a general CD, a hard disk, or the like. In this way, it is possible to obtain necessary music data, map data, and the like in real time without leaving the moving body.
[0084]
In FIG. 13, reference numeral 161 denotes a request signal transmitted from the quasi-zenith satellite 201 to the quasi-zenith satellite vehicle-mounted device 103, and 162 is a request signal determination unit that confirms the content requested by the request signal 161. FIG. 13 shows one of the functions of the on-vehicle device 103 for the quasi-zenith satellite. The request signal from the quasi-zenith satellite 201 is a request signal transmitted from the ground base 401. The request signal 161 means that when the ground base 401 requires the position, identification number, and other specific information of the quasi-zenith satellite vehicle-mounted device 103, the ground base 401 is directed to the quasi-zenith satellite vehicle-mounted device 103. Is a signal for requesting to transmit. Further, the request signal determination unit 162 determines what the ground base 401 is requesting. The quasi-zenith satellite vehicle-mounted device 103 is requested by the ground base 401 for a collision confirmation, a mobile drive device status information, a pilot status information, a wiper movement, a weather status information, a transmission confirmation signal, etc. according to the pilot's will. Sometimes. This function is used when the information cannot be exchanged between the quasi-zenith satellite vehicle-mounted device 103 and the quasi-zenith satellite 201. This is necessary when it is necessary to keep track of it.
[0085]
Next, a method for obtaining valuable information such as desired music data and map data from each on-vehicle device 103 for a quasi-zenith satellite will be described below. The quasi-zenith satellite vehicle-mounted device 103 requests the ground base 401 to transmit desired information such as music data and map data via the quasi-zenith satellite 201. Upon receiving the request, the ground base 401 transmits a billing confirmation signal for the desired valuable information to the quasi-zenith satellite vehicle-mounted device 103 via the quasi-zenith satellite 201. The quasi-zenith satellite vehicle-mounted device 103 that has received the billing confirmation signal for the desired valuable information transmits information regarding whether or not billing is possible to the ground base 401 via the quasi-zenith satellite 201. Upon receiving the billable signal, the ground base 401 transmits the requested valuable information to the quasi-zenith satellite vehicle-mounted device 103 via the quasi-zenith satellite 201. In this way, information can be exchanged and billed for each of the plurality of individual quasi-zenith satellite on-board units 103. An example of a billing method for exchanging valuable information is shown below. Charging is generally performed by the following two methods. The first is a prepaid method, and the second is a credit method. In the case of the prepaid system, the money is changed to the third form in advance. The third form is, for example, an IC card, a prepaid card, or electronic money. The money changed to the third form may be held by the quasi-zenith satellite-mounted device 103 or by the ground base 401 or a third party registered in the ground base 401. Billing is performed when a prepaid billing request signal transmitted at the will of the mobile operator is generated. In the case of the credit method, a charging request signal by credit transmitted at the will of the mobile operator is transmitted from the quasi-zenith satellite vehicle-mounted device 103 to the ground base 401 via the quasi-zenith satellite 201. The ground base 401 or a third party such as a credit company connected to the ground base 401 charges by credit. The charging by credit may be a general charging method. It should be noted that in order to charge by credit, registration to the ground base 401 is performed in advance.
[0086]
The methods shown in FIGS. 8, 9 and 11 to 13 may be combined. The information required for the combination may be selected by a mobile operator in a menu format, and the selection result may be transmitted to the ground base 401 via the quasi-zenith satellite 201 as a request signal.
[0087]
Embodiment. 3
14 to 17 show a third embodiment of the present invention. In each figure, reference numerals 103 to 401 are the same as those shown in the second embodiment. In FIG. 14, reference numeral 411 denotes an emergency contact device that transmits an emergency signal from the ground base 401 of the quasi-zenith satellite system to the police and fire department in the event of an emergency, and 412 denotes the related ministries and agencies such as the police and fire department that receive the emergency signal. . When the collision information generated due to the collision such as the impact of the moving object, the speed change amount, the acceleration change amount, the acceleration direction change amount, etc. is transmitted from the quasi-zenith satellite vehicle-mounted device 103, the ground via the quasi-zenith satellite 201 Information on the occurrence of an abnormality such as a collision of the moving body is transmitted to the station 401. In the emergency communication device 411, the self-position, identification number, etc. of the mobile body carrying the quasi-zenith satellite 103 in which an abnormality such as a collision has occurred is notified to the relevant ministries and agencies such as the police and fire department. Further, when the state information of the pilot such as the respiration rate, heart rate, and strength of gripping the steering wheel is transmitted from the on-vehicle device 103 for the quasi-zenith satellite, the ground station 401 is transmitted via the quasi-zenith satellite 201. The state information of the driver of the moving body is transmitted to the. Note that the respiratory operator's respiratory rate and heart rate are acquired by a sensor attached to the seat belt, for example. Further, the strength of gripping the handle is acquired by a sensor attached to the handle. In the emergency communication device 411, in addition to the occurrence of an abnormality such as a collision, the state information of the operator is also notified to the relevant ministries and agencies such as the police and the fire department. As a result, the occurrence of an accident can be communicated to the relevant ministries and agencies such as the police and fire department in real time together with the location of the accident. In addition, the state of the operator of the moving body can be grasped in real time, and in the worst case such as cardiopulmonary arrest, it is possible to contact a nearby medical institution. Furthermore, even if the suspect escapes after destroying property damage, etc., since the collision information is transmitted to the related ministries and agencies, the suspect can be quickly secured.
[0088]
In FIG. 15, reference numeral 421 denotes a state information transfer device for transferring state information such as cooling water temperature, engine oil temperature, engine oil pressure, engine speed, turbo pressure, etc., to the third place. Here, the third place is a place that requires the state information of the moving body drive device, and examples thereof include automobile manufacturers, dealers, various research institutions, and the like. The information of the state information transfer device 421 is information transmitted from the quasi-zenith satellite vehicle-mounted device 103 to the ground base 401 via the quasi-zenith satellite 201. The automobile manufacturer can know how much the user is overusing the engine for engine design and the like. In addition, the dealer can quickly catch and inform the user that the moving body is in poor condition. Furthermore, when the moving body fails, it is possible to know the state before the failure, and it is possible to deal with a failure without reproducibility. The quasi-zenith satellite vehicle-mounted device 103 or the owner / owner of the ground base 401 may provide status information for a fee. This is a reward for providing information. In addition, the dealer can promptly notify the user that the moving body is in bad condition and notify the user, and if the user who has heard the message requests the dealer to repair the car, a discount service may be provided. . As a merit of the dealer, it is possible to acquire a user who may repair the moving body in the future, and the user can receive a discount service. In order to create such a flow, the dealer registers in advance with the ground base 401 in order to receive provision of information.
[0089]
In FIG. 16, reference numeral 431 denotes a weather communication device that transmits weather information such as wiper movement, rainfall / snowfall, visible visibility, humidity, and outside temperature from the ground base 401 of the quasi-zenith satellite system, and 432 receives weather information. It is a meteorological information collection organization such as the Japan Meteorological Agency. The information of the weather communication device 431 is information transmitted from the quasi-zenith satellite vehicle-mounted device 103 to the ground base 401 via the quasi-zenith satellite 201. Hereinafter, information regarding the movement of the wiper will be described. The movement of the wiper is transmitted from the quasi-zenith satellite-mounted device 103 and transmitted to the weather information collecting organization 432 via the weather communication device 431. In the case of rainy weather, it is possible to determine the presence / absence of rain / snow by monitoring the movement of the wipers of a plurality of moving bodies transmitted from a certain area. Note that the movements of the wipers of the plurality of moving bodies are confirmed by reducing malfunctions caused by movements of the wipers that are not intended to pay rain, such as window cleaning. Hereinafter, meteorological information such as the amount of rainfall / snowfall, visible visibility, humidity, and outside temperature will be described. The weather information is transmitted from the quasi-zenith satellite vehicle-mounted device 103 and transmitted to the weather information collecting organization 432 via the weather communication device 431. The meteorological information may be measured by a visual visibility sensor that measures the visual visibility provided in advance on the moving body, a hygrometer that measures humidity, a rain meter that measures rainfall / snowfall, and a thermometer that measures temperature. . As a result, it is possible to collect local weather information in real time. The quasi-zenith satellite vehicle-mounted device 103 or the owner / owner of the ground base 401 may provide status information for a fee. This is a reward for providing information.
[0090]
In FIG. 17, reference numeral 441 denotes a valuable information transmitting / receiving apparatus for transferring valuable information from a company / institution or the like that holds valuable information, and reference numeral 442 denotes a valuable information holding company / institution or the like that holds valuable information. When each vehicle-mounted device 103 for the quasi-zenith satellite requests the ground base 401 to transmit music data, map data, etc., as valuable information via the quasi-zenith satellite 201, it exchanges valuable information of the ground base 401. The device 441 transmits information about the user who needs the valuable information to the valuable information holding company / institution etc. 442 holding the valuable information, and transmits music data, map data, etc., which are valuable information. Request. The valuable information holding company / institution 442 transmits the held valuable information to the valuable information transmitting / receiving device 441 in response to only the registered user request. The transmitted valuable information is transmitted to the quasi-zenith satellite vehicle-mounted device 103 via the quasi-zenith satellite 201. It should be noted that charging for exchange of valuable information is performed by the method shown in the second embodiment. In this way, valuable information such as the latest music data and map data can be obtained in real time without leaving the moving body.
[0091]
Here, a method for realizing the flow will be described. In order to realize the above flow, the following registration is required. First, a user who wishes to obtain valuable information via the quasi-zenith satellite-mounted device 103 is registered in the ground base 401 or the valuable information holding company / institution 442. Second, the valuable information holding company / institution 442 is registered in the ground base 401. Each will be described below. In the first case, user registration may be charged. This is a price for the advantage that the user can always obtain the latest music data, map data, etc. in an environment where information can be exchanged with the quasi-zenith satellite 201 if registered. In the second case, 442 registration of valuable information holding company / institution etc. may be charged. This has an advantage that valuable information holding company / institution 442 can secure users who require music data and map data. Further, the valuable information holding company / institution 442 can perform so-called Internet sales without having a store, and can reduce the running cost of the store.
[0092]
【The invention's effect】
  According to the present invention, it is possible to obtain real-time traffic information which is always required stably.
[Brief description of the drawings]
FIG. 1 is a diagram showing an on-vehicle device for a quasi-zenith satellite shown in Embodiment 1 of the present invention;
FIG. 2 is a diagram illustrating an example of a ground surface locus of a quasi-zenith satellite.
FIG. 3 is a diagram showing a positioning apparatus shown in Embodiment 1 of the present invention.
FIG. 4 is a diagram showing a positioning apparatus shown in Embodiment 1 of the present invention.
FIG. 5 is a diagram showing a quasi-zenith satellite shown in the first embodiment of the present invention.
FIG. 6 is a diagram showing a quasi-zenith satellite shown in the first embodiment of the present invention.
FIG. 7 is a diagram showing a data flow of the quasi-zenith satellite system shown in the first embodiment of the present invention.
FIG. 8 is a diagram showing an on-vehicle device for a quasi-zenith satellite shown in Embodiment 2 of the present invention;
FIG. 9 is a diagram showing an on-vehicle device for a quasi-zenith satellite shown in Embodiment 2 of the present invention.
FIG. 10 is a diagram showing the relationship between the distance and time of the moving body and the relationship between the speed and time of the moving body shown in the second embodiment of the present invention.
FIG. 11 is a diagram showing an on-vehicle device for a quasi-zenith satellite shown in Embodiment 2 of the present invention;
FIG. 12 is a diagram showing an on-vehicle device for a quasi-zenith satellite shown in Embodiment 2 of the present invention;
FIG. 13 shows a quasi-zenith satellite vehicle-mounted device shown in Embodiment 2 of the present invention.
FIG. 14 is a diagram showing a quasi-zenith satellite system shown in Embodiment 3 of the present invention.
FIG. 15 is a diagram showing a quasi-zenith satellite system shown in Embodiment 3 of the present invention;
FIG. 16 shows a quasi-zenith satellite system shown in Embodiment 3 of the present invention.
FIG. 17 is a diagram showing a quasi-zenith satellite system shown in a third embodiment of the present invention.
[Explanation of symbols]
101 Positioning device
102 Transceiver
103 On-vehicle equipment for Quasi-Zenith Satellite
111 Positioning receiver
112 Self-position calculator
113 Movement amount measuring unit
121 Map storage
122 Real-time traffic information
123 Traffic Information Judgment Unit
131 Status information
132 Road status information
133 Moving object speed calculation part
141 Real-time road traffic regulation information
142 Road Traffic Regulation Information Determination Unit
151 Valuable information
152 Valuable Information Recording Unit
161 Request signal
162 Request signal determination unit
201 Quasi-Zenith Satellite
202 Receiver
203 Transmitter
204 Terrestrial transceiver
301 Orbit of Quasi-Zenith Satellite
401 ground base
411 Emergency contact device
412 Police, fire fighting, etc.
421 Status information transfer device
431 Meteorological communication device
432 Meteorological information collection organization
441 Valuable Information Transfer Device
442 Valuable information holding company / institution, etc.
501 GPS satellite
502 Geostationary satellite
503 Fixed station on the ground
504 Light beacon

Claims (2)

A positioning device for positioning its own position;
The positioning device self-position and self identification number and that is positioning, the road plan to self run direction, transmits the point and the final destination information is scheduled to pass to the quasi-zenith satellite, the transmitted transmission and reception apparatus and vehicle-mounted device for quasi-zenith satellites comprising receiving road self is strike, the road near that strike, the congestion information of the road plan to run toward the quasi-zenith satellite based on the information. A quasi-equipment comprising a positioning device for positioning its own position, and a transmission / reception device for transmitting the self-position and self-identification number determined by the positioning device to the quasi-zenith satellite and receiving various information from the quasi-zenith satellite. In the in-vehicle device for Zenith Satellite
The quasi-zenith satellite vehicle-mounted device has a map storage unit storing a map,
A road traffic regulation information indicating a speed limit distributed from the quasi-zenith satellite, and a road traffic regulation information determination unit that overlaps the map stored in the map storage unit,
Furthermore, the quasi-zenith satellite vehicle-mounted device is a mobile body speed calculation unit that calculates the speed of the mobile body that emits less air pollutants from the speed information of the mobile body and the status information of the traffic signal distributed from the quasi-zenith satellite. And comprising
The quasi-zenith satellite on-vehicle device is a quasi-zenith satellite on-vehicle device that determines the speed from the speed limit and the speed of the mobile object calculated by the mobile object speed calculation unit.

Images