JP2017175262A - Information generation device, information generation method, program, and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information generation device capable of securely receiving information transmitted from the outside, to enable navigation operation based on most up-to-date information.SOLUTION: The information generation device includes: a first acquisition unit 43A which acquires the position information of a traffic information transmission station which transmits a radio signal (broadcast signal); a second acquisition unit 43B which acquires obstacle information which includes the position information of an obstacle in the periphery of a moving body; an estimation unit 43C which, based on the position information of the transmission station and the obstacle information, estimates a radio signal dead zone in the periphery of the moving body; and a generation unit 43D which generates estimated information related to the dead zone estimated by the estimation unit.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an information generation apparatus, an information generation method, a program, and a recording medium.

  In recent years, navigation devices are mounted on many vehicles such as automobiles. For example, the navigation device searches for a route from the current location to the destination, and performs driving guidance of the automobile along the route. For example, Patent Document 1 discloses a navigation device configured such that a display unit displays route information in a display form corresponding to an acquired radio wave state based on the radio wave state information.

JP 2006-98147 A

  For example, a driver of a car drives the car according to the guidance of the navigation device. For example, when searching for a route, the navigation device performs a search based on various conditions such as a route that prioritizes travel distance and a route that prioritizes travel time. In addition, a navigation device that acquires traffic information and performs route search or guidance based on the traffic information and a navigation device that performs route search excluding a predetermined area have been devised.

  Here, for example, in order to perform high-quality navigation operations according to actual road conditions, it is necessary to reliably receive information transmitted from the outside such as traffic information and keep the information in the device always up-to-date Is preferred. For example, traffic information receivable positions exist locally. Therefore, even if the vehicle has reached the receivable position, traffic information may not be received by a large truck or the like that is accidentally traveling in the receivable position. In this case, there is a problem that the traffic information in the device is not updated and the navigation processing based on the latest data cannot be performed.

  The present invention has been made in view of the above points, and is an information generation device, an information generation method, a program, and a recording that reliably receive information transmitted from the outside and enable a navigation operation based on the latest information. One of the problems is to provide a medium.

  The invention according to claim 1 is a first acquisition unit that acquires position information of a transmitting station that transmits a radio signal, and a second acquisition unit that acquires obstacle information including position information of obstacles around the moving body. And an estimation unit that estimates a dead zone of a radio signal around a moving object based on position information and obstacle information of a transmitting station, and a generation unit that generates estimation information about the dead zone estimated by the estimation unit .

  The invention according to claim 6 is the obstacle in which the first acquisition unit acquires the position information of the transmitting station that transmits the radio signal, and the second acquisition unit includes the position information of the obstacle around the moving body. A step of acquiring object information; a step of estimating an insensitive zone of a radio signal around the moving object based on position information and obstacle information of the transmitting station; and a generating unit detecting the insensitivity estimated by the estimating unit. Generating estimated information about the zone.

  According to the seventh aspect of the present invention, the computer acquires a first acquisition unit that acquires position information of a transmitting station that transmits a radio signal, and obstacle information that includes position information of obstacles around the mobile object. Two acquisition units, an estimation unit that estimates a dead zone of a wireless signal around a moving object based on position information and obstacle information of a transmitting station, and a generation unit that generates estimation information about the dead zone estimated by the estimation unit; To function as.

  According to an eighth aspect of the present invention, the computer acquires a first acquisition unit that acquires position information of a transmitting station that transmits a radio signal, and obstacle information that includes position information of obstacles around the mobile object. Two acquisition units, an estimation unit that estimates a dead zone of a wireless signal around a moving object based on position information and obstacle information of a transmitting station, and a generation unit that generates estimation information about the dead zone estimated by the estimation unit; , A program to be operated as is recorded.

It is a block diagram which shows the structure of the navigation system by which the information generation apparatus which concerns on Example 1 is mounted, and a vehicle. 1 is a block diagram illustrating a detailed configuration of an information generation apparatus according to Embodiment 1. FIG. It is a flowchart which shows each step of the dead zone calculation method by the information generation apparatus which concerns on Example 1. FIG. (A) And (b) is a figure which shows the example of a display screen of the estimation information by the information generation apparatus which concerns on Example 1. FIG. It is a block diagram which shows the relationship with the peripheral element of the information generation apparatus which concerns on the modification of Example 1. FIG. (A) is a block diagram showing a configuration of a program according to the second embodiment, and (b) is a block diagram showing a configuration of a recording medium according to the third embodiment.

  Examples of the present invention will be described in detail below.

  FIG. 1 is a block diagram illustrating a configuration of the navigation system 10 in which the information generation device 43 according to the first embodiment is mounted. In the present embodiment, a case where the information generation device 43 is mounted (built in) as a component of the navigation system 10 will be described. However, the information generation device may be provided separately from the navigation system. In this case, the information generation apparatus according to the present invention performs an information generation operation by exchanging necessary data with the navigation system.

  Further, in the present embodiment, a description will be given of a case where the navigation system 10 is mounted on the moving body VE0 and operates. The moving body VE0 is, for example, a vehicle such as an automobile, a motorcycle, or a bicycle. For example, when the moving body VE0 is an automobile, the navigation system 10 is a car navigation system. Note that the navigation system 10 does not have to be provided in the mobile body VE0 or the like. For example, the navigation system 10 is equipped with a hardware or software in a portable navigation device such as a PND (Personal Navigation Device) or a mobile terminal device such as a smartphone. It may be installed as wear.

  The navigation system 10 includes an input operation unit 21 for a user to perform input operations such as destination information, a communication unit 22 for communication with the outside, navigation information such as map information and route information, and temporary information used for navigation processing. A storage unit 23 in which typical data is stored, and an imaging unit 24 that captures an image of the periphery of the moving object VE0.

  The navigation system 10 includes a display unit 41 on which navigation information such as map information, route information, traffic information, and guidance information is displayed, and an audio output unit 42 on which the navigation information is output by voice. In addition, the navigation system 10 controls the operations of the input operation unit 21, the communication unit 22, the storage unit 23, the imaging unit 24, the display unit 41, and the audio output unit 42, and performs a processing of the navigation system 10. Have The navigation system 10 is provided with an information generating device 43. These are connected to each other via a transmission line (bus line) BL capable of bidirectional communication.

  The input operation unit 21 is a part that is operated by a user to input an instruction to the navigation system 10 such as a touch panel, a dial switch, or a button.

  For example, the communication unit 22 receives traffic information such as GPS information and VICS (registered trademark) information, and stores the traffic information in the storage unit 23. The communication unit 22 supplies the received traffic information and the like to the navigation processing unit 30. The communication unit 22 has a function of receiving various information signals used for navigation processing such as a GPS receiver, a VICS (registered trademark) (Vehicle Information Communication System) receiver, and a beacon receiver.

  The communication unit 22 may have communication functions such as in-vehicle LAN, WiFi communication, mobile phone (cellular) communication, inter-vehicle communication, and Internet connection. For example, the communication unit 22 receives a signal from a GPS satellite, and acquires time data and the current position of the moving body (vehicle). The communication unit 22 receives a VICS (registered trademark) signal, and acquires facility information including road information, traffic information, and parking lot information, weather information, and the like. In addition, it receives traffic information such as traffic jam information and traffic restrictions sent from the beacon device.

  The storage unit 23 includes a storage device capable of erasing and writing data, such as a hard disk drive (HDD), a semiconductor memory such as a flash memory, a Blu-ray (registered trademark) (Blu-ray) disk, a DVD-ROM, and the like. .

  The navigation processing unit 30 includes, for example, a CPU (Central Processing Unit), a RAM (Random Access Memory) that stores programs and data, and a ROM (Read Only Memory).

  In addition, the imaging unit 24 is provided, for example, around the moving body VE0 and performs imaging of the periphery of the moving body VE0 (for example, the front, side, and rear of the moving body VE0). For example, the imaging unit 24 includes a camera. In addition, the navigation system 10 may have a detector that can measure the distance to other moving bodies, such as a radar and an infrared sensor.

  The navigation processing unit 30 obtains navigation information such as road network link information and node information, map information, traffic information, specification information about the moving body VE, and time information from the input operation unit 21, the communication unit 22, and the storage unit 23. get. The navigation processing unit 30 generates a route based on the acquired navigation information. The navigation processing unit 30 generates display data based on the generated route and guidance data for route guidance, and outputs navigation information to the display unit 41 and the voice output unit 42 to perform a route guidance operation. The navigation processing unit 30 controls the display operation of the display unit 41 and the audio output operation of the audio output unit 42.

  In addition, the navigation system 10 includes a sensor (not shown) that detects a moving speed and a moving direction of the moving body VE0. The navigation processing unit 30 acquires time information, map information, GPS information, VICS (registered trademark) information, and information from the sensor, and performs route generation and route guidance. For example, the navigation processing unit 30 obtains the current location from the GPS information, generates an optimum route to the destination and provides route guidance, and displays the estimated arrival time and traffic information. In addition, the navigation processing unit 30 acquires the actual situation around the moving object via, for example, the imaging unit 24 and assists the driver when parking, for example.

  In the present embodiment, the navigation system 10 receives various information from the transmitting station TR. For example, the transmission station TR includes a traffic information transmission station that transmits VICS (registered trademark) information. For example, the transmission station TR includes an antenna that transmits VICS (registered trademark) information. A transmission signal (broadcast signal) from the transmission station TR can also be received by a plurality of other mobile units VE1 other than the mobile unit VE0. The navigation system 10 receives not only traffic information but also, for example, GPS information and position information of the other vehicle VE0 from the transmitting station TR by radio signals. In this embodiment, the moving body VE0 on which the navigation system 10 is mounted is referred to as the own vehicle, and the other moving body VE1 is referred to as the other vehicle.

  The information generation device 43 estimates the dead zone of the radio signal on the road on which the host vehicle VE0 is traveling, and generates the estimated information. The information generation device 43 acquires and detects the position of the transmitting station TR and the actual surrounding situation of the host vehicle VE0, and estimates a dead zone of the radio signal based on the acquired position. Note that the dead zone is a radio wave interference region that is generated when a radio wave from the transmission station TR is blocked by a building or a moving body.

  FIG. 2 is a block diagram illustrating configurations of the navigation processing unit 30 and the information generation device 43. The navigation processing unit 30 acquires information used for driving support such as a current location calculation unit AP that calculates and updates the current location of the host vehicle VE0, a route generation unit GE that generates a route that guides the host vehicle VE0, and route guidance. And an information acquisition unit RE.

  The current location calculation unit AP acquires GPS signals and vehicle speed signals at predetermined time intervals, calculates the current location based on these signals, and generates current location information. The current location calculation unit AP may be configured to acquire the current time. Further, the information acquisition unit RE acquires the transmission station position information TP, the obstacle information OBJ, and the map information MP from the communication unit 22, the storage unit 23, the imaging unit 24, and the like, for example.

  Next, in this embodiment, the information generation device 43 acquires the first acquisition unit 43A that acquires the position information TP of the transmission station TR that transmits the radio signal, and the obstacle information OBJ around the host vehicle VE0. The second acquisition unit 43B, an estimation unit 43C that estimates the dead zone of the radio signal based on the position information TP and the obstacle information OBJ, and a generation unit that generates estimation information of the dead zone estimated by the estimation unit 43C 43D. Moreover, the information generation device 43 has an output unit 43E that outputs the generated estimation information of the dead zone.

  For example, the first acquisition unit 43A acquires position information (transmission station position information TP) of the transmission station TR that transmits a radio signal (for example, a radio wave signal) from the navigation processing unit 30. For example, the second acquisition unit 43B acquires the obstacle information OBJ including the position information of the obstacle (radio wave obstacle) around the host vehicle VE0 from the navigation processing unit 30.

  For example, the navigation processing unit 30 acquires a peripheral image of the host vehicle VE0 from the imaging unit 24, analyzes the host vehicle peripheral image, and detects an obstacle on the road. The second acquisition unit 43B acquires obstacle information OBJ including the position and movement speed of the obstacle from the navigation processing unit 30. For example, the obstacle includes other moving objects, features such as buildings and overpasses. For example, the second acquisition unit 43B acquires other moving body information (for example, other vehicle information) including the position and speed of the other moving body (for example, another vehicle) as the obstacle information OBJ.

  The image acquired by the navigation processing unit 30 is an image (moving image) captured by the imaging unit 24, a three-dimensional image on the Internet received by the communication unit 22, and one of the map information MP read from the storage unit 23. Includes images of parts. Further, the navigation processing unit 30 takes in and analyzes a plurality of time-lapse images of the own vehicle, that is, moving images. For example, the navigation processing unit 30 detects and estimates the position of the surrounding vehicle from the present time to a predetermined time later from the relative position and relative speed between the host vehicle VE0 and the surrounding vehicle. The navigation processing unit 30 can also detect the current position and estimated position of the radio wave obstacle around the host vehicle VE0 from a radar and an infrared sensor in the navigation system 10.

  First, the estimation unit 43C, for example, from the navigation processing unit 30, based on the position information (transmission station position information TP) of the transmission station TR that transmits a radio signal (for example, a radio wave signal) and the current location information of the host vehicle VE0. It is determined whether or not the transmitting station TR exists in the vicinity of VE0 (for example, within a predetermined distance).

  The estimation unit 43C estimates a dead zone of a radio signal around the host vehicle VE0 based on the position information TP and obstacle information (for example, other moving body information) OBJ of the transmission station TR. For example, when the estimation unit 43C determines that the transmission station TR exists in the vicinity of the host vehicle VE0, the estimation unit 43C estimates a dead zone of a radio signal transmitted from the transmission station TR. For example, the estimation unit 43C calculates, as a dead zone, an area on the road where a radio signal transmitted from the transmission device TR is blocked by a traveling large truck.

  Further, when the other vehicle is traveling behind the host vehicle VE0 in the same direction as the host vehicle VE0 and at a speed faster than the host vehicle VE0, the estimation unit 43C and the position information of the transmitting station TR and other mobile body information ( Based on the other vehicle information) and the position information and speed information of the host vehicle VE0, a dead zone of the radio signal around the host vehicle VE0 is estimated. That is, the estimation unit 43C estimates a region that will become a dead zone in the future (for example, after a predetermined time).

  Specifically, the navigation processing unit 30 acquires and analyzes an image around the host vehicle VE0, and is another vehicle traveling around the host vehicle VE0 and is positioned in front of the vehicle VE0 after a predetermined time. Then, the analyzed other vehicle is detected as a radio wave obstacle. The estimation unit 43C estimates the dead zone of the radio signal based on the position of the other vehicle and the position of the transmission station TR after the predetermined time.

  For example, the distance or range of the surrounding area (surrounding) of the host vehicle VE0, that is, the insensitive zone estimation target area may be determined according to the actual road condition. Alternatively, the range may be determined in advance. For example, it may be determined according to the radio wave arrival range (service area) from the transmitting station TR. Further, it may be determined based on a navigation guidance range (screen display range). Furthermore, it may be determined based on a moving range such as a moving speed and a moving direction of the host vehicle VE0. Moreover, you may determine combining these.

  The generation unit 43D generates information (estimation information) regarding the dead zone estimated by the estimation unit 43C. For example, the generation unit 43D supplies the generated estimation information to the navigation processing unit 30 or an output unit 43E described later. For example, the output unit 43E is a display or a speaker, and the output unit 43E performs display of estimated information or an audio output operation by the generation unit 43D. For example, the output unit 43E outputs the estimation information in association with an image related to the periphery of the host vehicle VE0.

  In addition, when the navigation processing unit 30 receives the estimation information from the generation unit 43D, for example, the navigation processing unit 30 displays the vehicle surrounding image and the dead zone of the wireless signal on the display unit 41 in a superimposed manner. That is, the navigation processing unit 30 generates a route from the departure point to the destination of the host vehicle VE0, displays an image indicating the route on the display unit 41, performs route guidance for the host vehicle VE0, and indicates a dead zone. The estimated information is superimposed on the image and displayed on the display unit 41.

  The image displayed on the display unit 41 by the output unit 43E or the navigation processing unit 30 is an image (moving image) captured by the imaging unit 24, a three-dimensional image on the Internet received by the communication unit 22, and the storage unit 23. A part of the map information MP read out from the image is included.

  In addition, the generation unit 43D acquires map information of the road on which the host vehicle VE0 travels, and generates guidance information that guides the host vehicle VE0 to travel on the road while avoiding the dead zone. The generation unit 43E supplies the generated guidance information to the output unit 43E or the navigation processing unit 30. For example, the navigation processing unit 30 displays guidance information on the display unit 41 in addition to the estimated information related to the vehicle periphery image and the wireless signal dead zone.

  In the present embodiment, the case where the information generation device 43 includes the output unit 43E has been described. However, the information generation device 43 may not include the output unit 43E. In this case, the estimation information and guidance information generated by the generation unit 43D may be supplied to the navigation processing unit 30.

  FIG. 3 is a flowchart showing each step of the information generation method by the information generation device 43. 4A and 4B are diagrams illustrating display examples of the display unit 41 based on the estimation information generated by the generation unit 43D of the information generation device 43. For example, the information generation device 43 starts the calculation operation when the host vehicle VE0 starts to travel. First, the first acquisition unit 43A acquires the position information (transmission station position information TP) of the transmission station TR from the navigation processing unit 30 (step S11).

  Next, the estimating unit 43C determines whether or not the host vehicle VE0 is traveling near the transmitting station TR (step S12). For example, the estimation unit 43C acquires the current location information calculated by the current location calculation unit AP of the navigation processing unit 30, the position information TP of the transmission station TR, and the map information MP, and based on these information, the transmission station around the host vehicle VE0. It is determined whether or not TR exists.

  Next, the second obtaining unit 43B obtains the obstacle information OBJ from the navigation processing unit 30 when the estimating unit 43C determines that the transmitting station TR exists in the vicinity of the host vehicle VE0. In the present embodiment, first, the second acquisition unit 43B uses, as the obstacle information OBJ, another vehicle (obstacle) OB1 traveling in the vicinity of the host vehicle VE0 or a vehicle positioned in front of the host vehicle VE0 in the future ( Information on the obstacle OB2) is acquired (step S13). Further, the second acquisition unit 43B acquires information related to a feature (obstacle OB3) in the vicinity (for example, forward) of the host vehicle VE0 (step S14).

  When it is determined that the transmitting station TR does not exist around the own vehicle VE0, the information generating device 43 does not perform the information generating operation, and the estimating unit 43C causes the own vehicle VE0 to travel around the transmitting station TR. Wait until it is determined that

  Next, after determining that the transmitting station TR exists around the host vehicle VE0, the estimating unit 43C, based on the obstacle information OBJ including the position information TP of the transmitting station TR and the positions of the obstacles OB1, OB2, and OB3. A dead zone of the radio signal is estimated (step S15). In the present embodiment, the estimation unit 43C estimates the current dead zone (BZ1) and estimates (calculates) the estimated dead zone (BZ2) after a predetermined time.

  Subsequently, the generation unit 43D generates estimation information related to the dead zones BZ1 and BZ2 (step S16). In the present embodiment, the generation unit 43D supplies the estimation information to the navigation processing unit 30. The navigation processing unit 30 associates (for example, overlaps) the acquired estimated information with the vehicle surrounding image and causes the display unit 41 to display the information for a predetermined time. The display operation may be performed by the output unit 43E when the output unit 43E receives the estimation information generated by the generation unit 43D.

  FIGS. 4A and 4B are diagrams illustrating a display example of the display unit 41 in step S16. As shown in FIG. 4A, the current forward traveling vehicle OB1 and the current dead zone BZ1 are displayed in the screen of the display unit 41. Moreover, as shown in FIG.4 (b), the future front running vehicle OB2 and the future dead zone BZ2 may be displayed in the screen of the display part 41. FIG. In addition, although not illustrated, when the obstacle information OBJ including the feature OB3 as an obstacle is acquired, the feature OB3 may be displayed. For example, when the transmitting station TR is included in the vehicle periphery image, the position of the transmitting station TR may be displayed (declared).

  When the generation unit 43D generates the guidance information, the navigation processing unit 30 may further display the guidance information on the display unit 41 or may output the guidance guidance voice from the voice output unit 42. For example, examples of the guidance information include display data and voice data for guiding acceleration / deceleration and lane change of the host vehicle VE0.

  As described above, the information generation device 43 includes the first acquisition unit 43A that acquires the position information TP of the transmitting station TR that transmits the radio signal, and the obstacle including the position information of the obstacles OB1 to OB3 around the mobile body VE0. A second acquisition unit 43B for acquiring information OBJ, an estimation unit 43C for estimating dead zones BZ1 and BZ2 of radio signals around mobile VE0 based on position information TP and obstacle information OBJ of transmitting station TR, and estimation It has generating part 43D which generates presumed information about dead zone BZ1 and BZ2 which part 43C presumed.

  Therefore, for example, when a large vehicle is traveling in front of the host vehicle VE0, the presence of the dead zone BZ1 of the VICS (registered trademark) signal by the large vehicle can be grasped. Accordingly, display of the dead zone BZ1 and guidance for avoiding the dead zone BZ1 can be performed, and reliable reception of VICS (registered trademark) information can be assisted. Therefore, the traffic information of the navigation system 10 can be kept up-to-date. Further, by using the information generation method including the above-described steps, it is possible to avoid a failure in receiving traffic information and provide a method for reliably receiving the latest traffic information.

  FIG. 5 is a diagram illustrating a configuration of the information generation device 62 according to a modification of the first embodiment. This modification corresponds to a case where an information generation device 62 having the same configuration as the information generation device 43 is provided separately from the navigation system 50. In this modification, the navigation system 50 is a conventional navigation system.

  The communication terminal 60 is a tablet terminal, for example, and includes an input operation unit 61 and an information generation device 62. The mobile body (for example, vehicle) VE2 to which the communication terminal 60 is connected is a vehicle that is an information generation target of the information generation device 62. By providing the communication terminal 60 having the information generating device 62 separately from the navigation system 50 as in this modification, the conventional navigation system 50 can function as the navigation system 10. Even if the information generating device 62 is configured in this way, it is possible to keep the information in the navigation system 50 as an information generation target up-to-date.

  FIG. 7A is a block diagram illustrating a configuration of a program 70 according to the second embodiment. In the present embodiment, the program 70 causes the computer CP to function as the first acquisition unit 43A, the second acquisition unit 43B, the estimation unit 43C, the generation unit 43D, and the output unit 43E. That is, the program 70 causes the computer CP to function as the information generation device 43. Therefore, for example, the computer CP in which the program 70 is installed functions as the information generating device 43 of the vehicle VE0 as shown in the first embodiment. Further, by connecting the computer CP to a conventional navigation system, the conventional navigation system can function as the navigation system 10.

  In the present embodiment, various computers having interfaces can function as the information generation device 43. Therefore, for example, the traffic information of the vehicle VE0 or VE2 can be easily kept up-to-date, and a navigation operation based on the latest information can be performed.

  FIG. 7B is a block diagram illustrating a configuration of a recording medium 80 according to the third embodiment. A program 70 according to the second embodiment is recorded on the recording medium 80. For example, the program 70 according to the second embodiment corresponds to a mode in which the program 70 is uploaded so as to be downloadable on the server. In the present embodiment, for example, by connecting the recording medium 80 to another commercially available car navigation system, the other car navigation system can easily function as the information generating device 43 (navigation system 10).

DESCRIPTION OF SYMBOLS 10 Navigation system 43 Information generator 43A 1st acquisition part 43B 2nd acquisition part 43C Estimation part 43D Generation part 43E Output part VE0, VE2 Mobile body

Claims (8)

A first acquisition unit that acquires position information of a transmitting station that transmits a radio signal;
A second acquisition unit for acquiring obstacle information including position information of obstacles around the moving body;
Based on the position information of the transmitting station and the obstacle information, an estimation unit that estimates a dead zone of the radio signal around the moving body;
An information generation apparatus comprising: a generation unit that generates estimation information related to the dead zone estimated by the estimation unit. The obstacle is another moving body,
The second acquisition unit acquires other moving body information including the position and speed of the other moving body,
The information generation apparatus according to claim 1, wherein the estimation unit estimates a dead zone of the radio signal around the mobile body based on position information of the transmitting station and the other mobile body information. . When the other moving body is traveling behind the moving body in the same direction as the moving body and at a faster speed than the moving body,
The estimation unit estimates a dead zone of the radio signal around the moving body based on the position information of the transmitting station, the other moving body information, and the position information and speed information of the moving body. The information generating apparatus according to claim 2, wherein   The information generation apparatus according to claim 1, wherein the obstacle is a feature existing around the moving body.   5. The information generation apparatus according to claim 1, further comprising an output unit that outputs the estimation information generated by the generation unit in association with an image related to the periphery of the moving object. A first acquisition unit acquiring position information of a transmitting station that transmits a radio signal;
A step in which the second acquisition unit acquires obstacle information including position information of obstacles around the moving body;
An estimating unit estimating a dead zone of the radio signal around the moving body based on the position information of the transmitting station and the obstacle information;
A generation unit that generates estimation information related to the dead zone estimated by the estimation unit; Computer
A first acquisition unit that acquires position information of a transmitting station that transmits a radio signal;
A second acquisition unit for acquiring obstacle information including position information of obstacles around the moving body;
Based on the position information of the transmitting station and the obstacle information, an estimation unit that estimates a dead zone of the radio signal around the moving body;
A program that functions as a generation unit that generates estimation information related to the dead zone estimated by the estimation unit. Computer
A first acquisition unit that acquires position information of a transmitting station that transmits a radio signal;
A second acquisition unit for acquiring obstacle information including position information of obstacles around the moving body;
Based on the position information of the transmitting station and the obstacle information, an estimation unit that estimates a dead zone of the radio signal around the moving body;
A recording medium on which a program that functions as a generation unit that generates estimation information related to the dead zone estimated by the estimation unit is recorded.

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