JP2009229199A - Predicted arrival time calculator and predicted arrival time calculation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a predicted arrival time calculator and a predicted arrival time calculation method for calculating a predicted arrival time with improved accuracy by effectively utilizing information from a plurality of information sources. <P>SOLUTION: The predicted arrival time calculator of the present application calculates a predicted arrival time of a mobile body to a destination, and includes: a movement-information acquisition means for acquiring movement information relating to movement to the destination from the plurality of information sources; an adjustment means for adjusting each obtained movement information to express the movement information in a common unit of time or speed; and a predicted-arrival-time calculation means for calculating a predicted arrival time based on each adjusted movement information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present application relates to a technical field such as an estimated arrival time calculation device that calculates an estimated arrival time of a mobile object at a destination.

  Conventionally, for example, in a navigation device mounted on a moving body such as a vehicle, the estimated arrival time from the current position to the destination is calculated and presented to the user. The estimated arrival time can be calculated in consideration of not only the speed of the vehicle and the distance to the destination but also traffic information obtained by the navigation device, and can ensure accuracy to some extent.

Patent Document 1 discloses a technique for controlling a device at a destination using such estimated arrival time. In such a technology, if the actual arrival time is too early, the meaning of using the technology is halved in the first place, and if the actual arrival time is delayed, it cannot be rewound and wasted time and energy. As a result (for example, due to temperature control of an air conditioner or the like) is consumed, a higher accuracy is particularly required for the estimated arrival time.
JP 2007-202051 A

  However, in such a conventional technique, the estimated arrival time is calculated using, for example, traffic information obtained from one information source, and thus there is a limit to obtaining high accuracy. Further, if a plurality of devices are controlled at a time, if an attempt is made to compensate for such accuracy, it becomes impossible to control because the communication must be performed over and over again.

  Therefore, it is conceivable to improve the accuracy by acquiring traffic information for calculating the estimated arrival time from multiple information sources and using them, but in general, the information content and reliability from each information source There is a difference in degrees. For this reason, it is not easy to improve the accuracy of the estimated arrival time by using information from a plurality of information sources.

  The present application considers solving such a point as one of the issues, and an estimated arrival time calculation device capable of improving the accuracy of the estimated arrival time by efficiently using information from a plurality of information sources, and the expected arrival time The purpose is to provide a time calculation method and the like.

  In order to solve the above-mentioned problem, the invention described in claim 1 is an estimated arrival time calculation device for calculating an estimated arrival time of a moving body at a destination, wherein a plurality of pieces of movement information relating to movement to the destination are provided. Movement information acquisition means acquired from the information source, adjustment means for adjusting the acquired movement information so as to be expressed in a common unit of time or speed, and estimated arrival time based on the adjusted movement information The estimated arrival time calculating means for calculating

  The invention according to claim 8 is a method for calculating a scheduled arrival time for calculating a scheduled arrival time of a mobile body at a destination, wherein movement information relating to movement to the destination is obtained from a plurality of information sources. And adjusting the acquired movement information so as to be expressed in a common unit of time or speed, and calculating the estimated arrival time based on the adjusted movement information. And

  The estimated arrival time calculation program according to claim 9, wherein the computer for calculating the estimated arrival time of the moving body at the destination acquires movement information related to movement to the destination from a plurality of information sources, and the acquisition The adjusted movement information is adjusted to be expressed in a common unit of time or speed, and the estimated arrival time is calculated based on the adjusted movement information.

  Hereinafter, the best embodiment of the present application will be described with reference to the accompanying drawings. In addition, embodiment described below is embodiment at the time of applying this application with respect to an information collection system.

  First, the configuration and function of the information collection system according to the present embodiment will be described.

  FIG. 1 is a diagram illustrating a schematic configuration example of the information collection system according to the present embodiment, and FIG. 2 is a schematic configuration example of the information collection server.

  As shown in FIG. 1, the information collection system S includes a plurality of ITS (Intelligent Transport Systems) 1n (n: 1, 2,... K) and a plurality of in-vehicle navigation devices 2n (n: 1, 2... K), an in-facility device control server 30, and an information collection server 40. In addition, the plurality of ITS 1n, the plurality of in-vehicle navigation devices 2n, and the in-facility device control server 30 each include an information collection server 40 via a network NW that includes the Internet, a mobile communication network (including a base station), and the like. Are connected to each other, and data communication with each other can be performed.

  The ITS 1n and the in-vehicle navigation device 2n are positioned as information sources of movement information related to movement to a destination described later. Such movement information is a broad concept including traffic information and vehicle information described later.

  Each ITS1n is operated by, for example, a public organization or the private sector, and provides (transmits) traffic information such as traffic congestion information on roads existing in a certain area to the information collection server 40 periodically via the network NW. Yes. The contents of the traffic information provided by each ITS 1n are different (variable) even in the same section, and may be expressed differently. For example, the congestion section included in the congestion information and the average congestion speed of the vehicle in the section do not match for each ITS 1n. Furthermore, there is ITS1n in which information indicating the average traffic speed is not included in the traffic information, or there is ITS1n indicated by the required time in the section instead of the average traffic speed. In addition, the content of the traffic information provided by each ITS 1n is various with high reliability and low reliability. For example, traffic information provided from ITS1n operated by a public institution is estimated to have high reliability.

  Each on-vehicle navigation device 2n receives a navigation radio wave output from a satellite and detects a current position (longitude and latitude), a GPS (Global Positioning System) receiver, and a VICS that receives traffic information transmitted from a beacon or the like. (Vehicle Information and Communication System) Receiver, sensor unit having speed sensor for detecting vehicle speed based on vehicle speed pulse, storage unit for storing map data and navigation program, and display unit for displaying various information A voice output unit that outputs voice, an operation unit for receiving various instructions from the user, a communication unit for performing data communication with the information collection server 40 via the network NW, and the navigation A system control unit (consisting of a CPU, a RAM, a ROM, etc.) for overall control of all components in the device 2n; It is configured with these components are connected electrically to each other via a bus.

  Then, the system control unit of each in-vehicle navigation device 2n includes position information indicating the current position detected by the GPS receiving unit (may be corrected by vehicle speed or acceleration detected by the sensor unit), and Vehicle information including speed information indicating the speed of the vehicle detected by the sensor unit is periodically provided (transmitted) to the information collection server 40 via the communication unit and the network NW. In addition, you may comprise so that the said vehicle information may include the traffic information received by the VICS receiver.

  Further, for example, the system control unit of the in-vehicle navigation device 21 may receive destination information indicating a destination specified by the user when the user gives a route search instruction to the destination via the operation unit, and the above Route search instruction information including vehicle information and the like is provided (transmitted) to the information collection server 40 via the communication unit and the network NW. As a result, the information collection server 40 searches for a route to the destination, and calculates the estimated arrival time in consideration of the traffic information acquired from the ITS 1n and the vehicle information acquired from each in-vehicle navigation device 2n. The route information indicating the route and the estimated arrival time information indicating the estimated arrival time are returned to the in-vehicle navigation device 21 via the network NW, and the in-vehicle navigation device 21 provides the route to the destination and the arrival time. The scheduled time is displayed on the display unit or output as voice from the voice output unit. Instead of providing the destination information and the route search instruction information described above, the in-vehicle navigation device 21 searches for a route to the destination, and the route information indicating the searched route is sent to the communication unit and the network NW. Alternatively, the information may be provided (transmitted) to the information collection server 40. In this case, the estimated arrival time for the route information transmitted by the information collection server 40 is calculated in consideration of the acquired traffic information and vehicle information, and the information indicating the estimated arrival time is in-vehicle navigation via the network NW. It will be returned to the device 21.

  Further, for example, the system control unit of the in-vehicle navigation device 21 receives destination information indicating the destination designated by the user when the user gives an operation start instruction of the electronic device at the destination via the operation unit. The electronic device information indicating the electronic device designated by the user (for example, the name of the electronic device is designated on the display screen) and the electronic device operation instruction information including the vehicle information are transmitted via the communication unit and the network NW. It is provided (transmitted) to the collection server 40. As a result, the information collection server 40 searches for a route to the destination and calculates the estimated arrival time. The estimated arrival time information indicating the estimated arrival time and the electronic device control information including the electronic device information are obtained. It is transmitted to the in-facility equipment control server 30 via the network NW, and the in-facility equipment control server 30 controls the operation of the electronic equipment. Further, the route information indicating the route and the estimated arrival time information indicating the estimated arrival time are returned from the information collection server 40 to the in-vehicle navigation device 21 via the network NW, and the in-vehicle navigation device 21 receives the destination. The route up to and the estimated arrival time are displayed on the display unit, or are output as audio from the audio output unit.

  The in-facility device control server 30 is a device control device that controls an electronic device at a destination. For example, the in-facility device control server 30 is installed in a building that is a destination and is connected to a LAN (Local Area Network) built in the building. Has been. A plurality of electronic devices (for example, air conditioners (air conditioners), rice cookers, bathtub water heaters, etc.) are connected to the LAN. Then, when the in-facility device control server 30 receives the electronic device control information from the information collection server 40, the in-facility device control server 30 uses the electronic device control information indicated by the electronic device control information based on the estimated arrival time indicated by the electronic device control information. It controls the operation of the equipment. For example, in the case where the electronic device is an air conditioner, a time (for example, 9:50) obtained by subtracting a time (for example, 10 minutes) from the current temperature to the set temperature from the estimated arrival time (for example, 10:00) When this happens, an operation start command (ON command) is given to the air conditioner. In addition, when the electronic device is a bathtub water heater, when the time (for example, 9:40) is calculated by subtracting the time (for example, 20 minutes) in which the hot water is accumulated in the bathtub from the estimated arrival time (for example, 10:00) An operation start command is given to the bathtub water heater.

  As shown in FIG. 2, the information collection server 40 includes an information processing unit 401 including a CPU, a RAM, a ROM, and the like, various data (including map data), and a program (including the estimated arrival time calculation program of the present invention). The storage unit 402 stores data, and includes a communication unit 403 for performing data communication with each in-vehicle navigation device 2n and the facility equipment control server 30 via the network NW.

  The information processing unit 401 includes a route search unit 401a, a movement information acquisition unit 401b (an example of movement information acquisition unit), a base selection unit 401c (an example of selection unit), a common unit adjustment unit 401d (an example of adjustment unit), an arrival schedule A time calculating unit 401e (an example of an estimated arrival time calculating unit) and an information providing unit 401f (an example of a providing unit) are provided, and these units are realized by the CPU executing a program.

  When the route search unit 401a receives, for example, route search instruction information or electronic device operation instruction information from the in-vehicle navigation device 21, for example, the map data is used to indicate the position indicated by the vehicle information included in the route search instruction information (the relevant A route (route) from the current position of the vehicle to the destination indicated by the destination information included in the route search instruction information is searched. In some cases, a plurality of routes are searched. In such a case, either one of the recommended routes is selected, or the estimated arrival time is calculated for each route according to the flow described later, and each calculated arrival is calculated. For example, the shortest scheduled arrival time is selected from the scheduled times. In addition, the searched route is represented by coordinates corresponding to longitude and latitude, for example.

  The movement information acquisition unit 401b acquires movement information related to movement to the destination indicated by the destination information from a plurality of information sources. For example, traffic information and vehicle information periodically transmitted from the information source ITS1n and the in-vehicle navigation device 2n are received as movement information and each area (for example, specified by coordinates corresponding to longitude and latitude). The movement information acquisition unit 401b stores the movement information related to movement to the destination as the movement information from the accumulated information, for example. Traffic information on the route to the destination (for example, a traffic jam section, an average traffic speed in that section) and vehicle information (for example, a vehicle speed measured at a certain position) are acquired. The information acquired in this way is stored in the work area in the RAM for each information source.

  The base selection unit 401c selects movement information (data) having the highest reliability among pieces of movement information acquired from a plurality of information sources. For example, since the information acquired from each information source is considered to have a difference (variation) as described above, it is based on movement information from the information source with the highest reliability. For example, since the movement information from ITS1n operated by a public institution is considered to have high reliability, the movement information may be selected as movement information with high reliability.

  In each information source, particularly ITS1n, the estimated arrival time calculated by the information collection server 40, the route information to the destination of the vehicle equipped with the in-vehicle navigation device 21 that receives the estimated arrival time, and It may be configured to obtain the reliability of traffic information to be provided after the next time by receiving provision of the actual arrival time and managing it as a past history and determining a time difference between them. For example, if the ratio (%) of the difference between the estimated arrival time and the actual arrival time is equal to or lower than the lower limit value, the reliability is high (for example, 3), and if the ratio is equal to or higher than the upper limit value, the reliability is low (for example, 1). Then, for the traffic information on the route information managed as the past history, ITS1n itself determines the reliability of the traffic information from the time difference in the past history, and information indicating the reliability together with the traffic information is information collecting server 40. To provide.

  For example, if the reliability of the acquired movement information is not so different, it is not necessary to select the movement information (data) having the highest reliability.

  Further, before the movement information acquisition unit 401b acquires movement information, the information is narrowed down from a large number (for example, 10) of information sources to a high-predetermined number of information sources (for example, 5) with high reliability. You may comprise so that the movement information from a source may be acquired.

  The common unit adjustment unit 401d adjusts each acquired movement information so as to be expressed in a common unit of time or speed. Each travel information from each ITS1n includes information indicating the average traffic speed of the vehicle in the relevant section together with the traffic section, information indicating the required time in a certain section instead of the speed, or the above Since there are various types of information including only the traffic jam section without including both the speed and the required time, for example, each movement information is adjusted so as to be expressed in a common unit of speed (or time). Note that, for information that includes only the congestion section that does not include both the speed and the required time, for example, the average congestion speed in the congestion section included in the travel information with the highest reliability selected by the base selection unit 401c, for example. Or, as will be described later, the ratio of matching traffic sections included in each piece of movement information in a certain section is obtained, and the speed calculated based on the matching ratio (for example, the traffic congestion matching rate is If it is 100%, 5 km / h (reference traffic speed) is assigned, and if the traffic congestion matching rate is 80%, 10 km / h is assigned. As a result, it is possible to assign an appropriate speed or required time even for a traffic jam section that does not have both speed and required time information.

  Here, the reference traffic speed may be a general traffic speed, or may be an average traffic speed in a traffic congestion section included in the movement information having the highest reliability selected by the base selection unit 401c.

  FIG. 3 is a conceptual diagram showing comparison of movement information acquired from each information source. In the example of FIG. 3A, a traffic jam section included in the travel information from the ITS 11 to 15 as the information source is shown on the same route from the current position of the vehicle to the destination (the searched route). (For the travel information from ITS 11, 12, and 15, the average traffic speed in the traffic jam section is also shown), and a shift is seen little by little in that zone.

  In the example of FIG. 3A, the same route from the current position of the vehicle to the destination is divided into a plurality of sections (for example, divided into 1 km sections by the common unit adjustment unit 401d). For each section, a ratio of matching traffic congestion sections (hatched portions in the figure) included in each movement information is obtained. For example, in the section D3, the congestion coincidence rate is 100% (the congestion sections of all the movement information are coincident), and the congestion coincidence ratio of the sections D2 and D4 is 80% (the congestion sections of the four movement information are coincident). It has become. In a traffic jam section that does not include both the speed and the required time (movement information from ITS 13 and ITS 14 in the example in the figure), for example, a standard traffic jam speed ( In this example, 5 km / h, which is an average traffic speed in the section included in the travel information from the ITS 11, is assigned, and the reference traffic speed + α (α: predetermined) for a section with the traffic congestion matching rate of 80%. Is 10 km / h (see FIG. 3B). In addition, although the distance of the said division | segmentation area in the path | route to the destination is arbitrary (it does not need to divide | segment), if the distance of the said division | segmentation area is shortened, accuracy can be improved that much.

  As described above, for example, when adjusted so as to be expressed by a common unit of speed for each divided section, for example, as shown in FIG. 3B, vehicles corresponding to each information source for each divided section. The speed of will be obtained. For a section that is not a congestion section (for example, 51 parts), for example, the legal speed of that section is assigned. Furthermore, for the section where the vehicle information from the in-vehicle navigation device 2n as the information source is present (the same applies to both the traffic jam section and the non-traffic section), by replacing it with the actual vehicle speed included in the vehicle information, If configured to adjust the speed of the vehicle in the section, the accuracy can be further increased.

  In addition, in a certain section corresponding to one information source, it is assumed that a congestion section and a section that is not so are included. In this case, for example, the section is further divided into small sections, and each piece of information for each small section. It is good to comprise so that the speed of the vehicle corresponding to a source may be calculated | required.

  The estimated arrival time calculation unit 401e calculates the estimated arrival time at the destination based on each piece of movement information adjusted as described above (for example, the speed of the vehicle). At this time, as described above, when the speed of the vehicle corresponding to each information source is obtained for each divided section, the estimated arrival time calculation unit 401e calculates the estimated arrival time based on the speed in each section. Will do. For example, the estimated arrival time calculation unit 401e calculates the average speed in each section by averaging the speeds of the vehicles corresponding to each information source in each section, and then calculates the distance of each section by the average speed. The divided required time is calculated (FIG. 3C is a conceptual diagram thereof), and the estimated arrival time is calculated by integrating (totaling) the required time in each section.

  Alternatively, the estimated arrival time calculation unit 401e obtains a plurality of patterns of speed (or time) candidates in each section based on each piece of movement information adjusted as described above, for example, the speed of the vehicle. It is effective if any one candidate is selected and the estimated arrival time is calculated based on the selected candidate.

  FIG. 4 is a diagram illustrating an example of calculating speed candidates of a plurality of patterns in a certain section. In the example of FIG. 4, the vehicle speeds in the section are rearranged in order of speed, and are divided into three patterns of speed candidates of high speed, medium speed, and low speed obtained based on this. The high speed is the top two average speeds that are fast in the section, and the low speed is the bottom two average speeds that are slow in the section. Here, high speed is assumed to arrive at the destination in the shortest time, medium speed is assumed to arrive at the destination in average time, and low speed is assumed to arrive at the destination in the longest time. It is supposed to arrive. Note that the speed candidates are not limited to three patterns, and more patterns may be obtained. Further, instead of obtaining the speed candidate, a required time candidate for each section may be obtained.

  Moreover, which candidate is selected from these speed candidates (or required time candidates) may be configured to automatically switch depending on, for example, the intended arrival time, or can be arbitrarily set by the user. You may comprise as follows. For example, if the estimated arrival time is simply provided to the in-vehicle navigation device 21, a medium speed may be selected. Further, if the estimated arrival time is provided to the in-facility equipment control server 30 for operation control of the electronic equipment, a high speed may be selected. Further, if the estimated arrival time is provided to the navigation device mounted on the vehicle of the package delivery company, for example, it may be appropriately selected according to the delivery time promised in advance with the delivery destination. This is because it is meaningless to provide the estimated arrival time if the actual arrival time is too early compared to the estimated arrival time (time).

  The information providing unit 401f returns the route information indicating the searched route and the estimated arrival time information indicating the calculated estimated arrival time to the in-vehicle navigation device 21 via the network NW, or the estimated arrival time. And the electronic device control information including the electronic device information are transmitted to the in-facility device control server 30 via the network NW.

  Next, an operation example of the information collection system according to the present embodiment will be described.

  FIG. 5 is a flowchart showing the estimated arrival time provision process in the information processing unit 401 of the information collection server 40.

  First, for example, when the user of the in-vehicle navigation device 21 gives a route search instruction to the destination via the operation unit, the destination information indicating the destination designated by the user, the vehicle information, etc. The route search instruction information including the information is transmitted to the information collection server 40 via the communication unit and the network NW. Alternatively, for example, when the user of the in-vehicle navigation device 21 gives an operation start instruction of the electronic device at the destination via the operation unit, the destination information indicating the destination designated by the user, Electronic device information indicating the specified electronic device and electronic device operation instruction information including the vehicle information and the like are transmitted to the information collection server 40 via the communication unit and the network NW.

  Then, in the information collecting server 40, in step S1 of FIG. 5, it is confirmed whether or not the instruction information (route search instruction information or electronic device operation instruction information) has been received, and if received (step S1: YES), go to step S2.

  Next, in step S2, a route (for example, from the position indicated in the vehicle information included in the received instruction information (current position of the vehicle) to the destination indicated in the destination information included in the instruction information (for example, One route) is searched by the route search unit 401a.

  Next, in step S3, the movement information related to the searched route is transmitted by the movement information acquisition unit 401b from the movement information transmitted from the information source ITS1n and the in-vehicle navigation device 2n and stored in the buffer memory. Acquired, distinguished for each information source, and stored in the work area in the RAM.

  Next, in step S4, the movement information with the highest reliability among the acquired movement information is selected as a base by the base selection unit 401c as described above. For example, when there is not much difference in the reliability of the acquired movement information, it is not necessary to select the movement information with the highest reliability.

  Next, in step S5, as described above, for example, the route from the current position of the vehicle to the destination is divided into a plurality of sections by the common unit adjustment unit 401d, and each divided section is represented by a common unit of speed, for example. To be adjusted.

  Next, in step S6, as described above, the estimated arrival time calculation unit 401e obtains, for example, a plurality of patterns of speed candidates (for example, high speed, medium speed, low speed) in each section, and one speed among the candidates. A candidate is selected (for example, if the instruction information is route search instruction information, a medium speed is selected, and if the instruction information is electronic device operation instruction information, a high speed is selected). The required time of each section is calculated from the speed candidate and the distance of the section, and then the required time of each section is integrated to calculate the estimated arrival time.

  Next, in step S7, the estimated arrival time information indicating the calculated estimated arrival time is provided via the network NW. For example, when the instruction information is route search instruction information, route information, estimated arrival time information, and the like are provided to the in-vehicle navigation device 21 that is the transmission source of the instruction information. Thereby, in the said vehicle-mounted navigation apparatus 21, the route to the said destination and the said arrival time are displayed on a display part, or are output as a sound from an audio | voice output part. On the other hand, when the instruction information is electronic apparatus operation instruction information, the in-facility apparatus control server 30 is provided with electronic apparatus control information including estimated arrival time information and electronic apparatus information. Thereby, the said apparatus control server 30 performs operation control of the said electronic device.

  As described above, according to the above-described embodiment, the information collection server 40 acquires movement information related to movement of the vehicle to the destination from a plurality of information sources, and each acquired movement information is a common unit of time or speed. The estimated arrival time is calculated based on each adjusted movement information, so that even if there is a difference in the contents of movement information from individual information sources, such information can be efficiently processed. It can be used to improve the accuracy of the estimated arrival time. Since information indicating the estimated arrival time with high accuracy is provided to the in-vehicle navigation device 2n and the in-facility equipment control server 30, a user (for example, a driver) of the in-vehicle navigation device 2n More accurate arrival time can be grasped, and useless time and energy can be prevented from being consumed for controlling the electronic device at the destination.

  In addition, for each section divided from the current position to the destination into a plurality of sections, each movement information is adjusted to be expressed in a common unit of time or speed, and based on the required time or speed in each section If it is configured to calculate the estimated arrival time, the accuracy of the estimated arrival time can be further improved.

  In addition, based on each adjusted movement information, a plurality of patterns of speeds or required time candidates are obtained in each section, one of the candidates is selected, and the estimated arrival time is determined based on the selected candidates. If configured to calculate, it is possible to provide an estimated arrival time suitable for the application.

  In the above-described embodiment, one information collection server 40 is shown and described, but the function of the information collection server 40 is configured to be implemented in each in-vehicle navigation device 2n or in the facility device control server 30. In this case, each in-vehicle navigation device 2n or in-facility equipment control server 30 obtains necessary movement information from each information source, and calculates the estimated arrival time as described above. .

  In the above embodiment, a vehicle is taken as an example of a moving body, and an example in which information indicating the estimated arrival time is provided to a navigation device mounted on the vehicle has been described. It is also possible to apply information indicating the estimated arrival time to a navigation device (for example, built in a mobile phone), a navigation device mounted on a ship, a navigation device mounted on an aircraft, or the like.

It is a figure showing an example of outline composition of an information collection system concerning this embodiment. It is an example of outline composition of an information collection server. It is a conceptual diagram which shows the comparison of the movement information acquired from each information source. It is a figure which shows the example of calculation of the speed candidate of the several pattern in a certain area. 7 is a flowchart showing a scheduled arrival time provision process in the information processing unit 401 of the information collection server 40.

Explanation of symbols

1n ITS
2n On-vehicle navigation device 30 In-facility equipment control server 40 Information collection server 40
401 Information processing unit 401a Route search unit 401b Movement information acquisition unit 401c Base selection unit 401d Common unit adjustment unit 401e Estimated arrival time calculation unit 401f Information provision unit 402 Storage unit 403 Communication unit NW Network S Information collection system

Claims (10)

An estimated arrival time calculation device for calculating an estimated arrival time of a mobile object at a destination,
Movement information acquisition means for acquiring movement information related to movement to the destination from a plurality of information sources;
Adjusting means for adjusting the acquired movement information so as to be expressed in a common unit of time or speed;
An estimated arrival time calculating means for calculating an estimated arrival time based on each adjusted movement information;
An estimated arrival time calculation device comprising: In the estimated arrival time calculation device according to claim 1,
Among the pieces of movement information acquired from the plurality of information sources, further comprising selection means for selecting movement information having the highest reliability,
The said adjustment means adjusts so that each said movement information may be represented by the common unit of time or speed on the basis of the movement information selected by the said selection means, The arrival time calculation apparatus characterized by the above-mentioned. In the estimated arrival time calculation device according to claim 1 or 2,
The said adjustment means calculates | requires the ratio with which each said acquired movement information corresponds, and adjusts the said time or speed based on the said ratio that corresponds, The arrival time calculation apparatus characterized by the above-mentioned. The estimated arrival time calculation device according to any one of claims 1 to 3,
The adjustment means adjusts the movement information so that each movement information is expressed in a common unit of time or speed for each of the sections divided from the current position to the destination into a plurality of sections.
The estimated arrival time calculating means calculates the estimated arrival time based on the required time or speed of the moving body in each of the sections. In the estimated arrival time calculation device according to any one of claims 1 to 4,
The estimated arrival time calculation means obtains a plurality of patterns of time or speed candidates based on the adjusted movement information, selects any one of the candidates, and based on the selected candidates An estimated arrival time calculating apparatus for calculating the estimated arrival time. In the estimated arrival time calculation device according to any one of claims 1 to 6,
An estimated arrival time calculation device, further comprising providing means for providing information indicating the calculated estimated arrival time to a navigation device mounted on the mobile body. In the estimated arrival time calculation device according to any one of claims 1 to 7,
An estimated arrival time calculation apparatus, further comprising: a provision unit that provides information indicating the calculated estimated arrival time to an apparatus control apparatus that controls an apparatus at the destination. An estimated arrival time calculation method for calculating an estimated arrival time of a mobile object at a destination,
Obtaining movement information relating to movement to the destination from a plurality of information sources;
Adjusting each acquired movement information to be expressed in a common unit of time or speed;
Calculating an estimated arrival time based on each adjusted movement information;
The estimated arrival time calculation method characterized by comprising. A computer that calculates the estimated time of arrival at the destination
Obtaining movement information relating to movement to the destination from a plurality of information sources;
Adjust the acquired movement information to be expressed in a common unit of time or speed,
An estimated arrival time calculation program that functions to calculate an estimated arrival time based on each of the adjusted pieces of movement information.   10. A recording medium in which the estimated arrival time calculation program according to claim 9 is recorded so as to be readable by a computer.

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