JP2021065090A - Information transmission device and system for movable body and movable body monitoring system - Google Patents

Abstract

To transmit pieces of information collected in time series on a movable body, to a base station in radio communication in a state of having high real time property and reducing omission of information.SOLUTION: An information transmission device 12 mounted on a movable body 100 comprises: a communication part 26 for performing radio communication with a ground side base station; a position detection part 28 for detecting a current position of the movable body 100; a section information storage part 27a for storing section information indicating a prescribed section including a section in which the radio communication cannot be performed; and basic information collection means for collecting basic information for generating or updating the section information. The communication part 26 is controlled so that, based on the current position and the section information, pieces of information collected in time series on the movable body 100 are transmitted to the base station, and the section information is generated or updated based on the basic information collected by the basic information collection means.SELECTED DRAWING: Figure 2

Description

The present invention relates to a mobile information transmission device, a mobile information transmission system, and a mobile monitoring system using the same.

In the vehicle condition monitoring system disclosed in FIG. 2 of Patent Document 1 below, the condition of the equipment and devices mounted on the railway vehicle is displayed on the vehicle monitoring device that displays the equipment condition of the vehicle, and the crew members constantly monitor the equipment. Was. The details of the state of the device mounted on the vehicle are recorded on the data storage medium, and after the operation is completed, the record is called from the data storage medium at the garage inspection and repair office, etc., and the state and status of the device are known. Based on the equipment failure information read from the data storage medium, the parts manufacturer was contacted for inspection and repair, and repairs were carried out.

However, with this conventional vehicle condition monitoring system, only the crew members can know the status of the equipment while the railroad vehicle is in operation. Therefore, when an equipment abnormality occurs, the crew members contact the appropriate department and ask for a decision. , Had to decide to continue or stop the operation. In addition, since detailed information on the state of the device can be obtained only after the operation is completed (after entering the garage), the repair work is delayed, and for example, the arrangement of replacement parts is delayed.

Therefore, the vehicle condition monitoring system disclosed in FIG. 1 of Patent Document 1 below is mounted on a railroad vehicle and acquires the equipment information of the railroad vehicle and the position information of the railroad vehicle described in the previous term, and the vehicle. An in-vehicle communication device for transmitting the failure information of the equipment of the railway vehicle and the position information of the railway vehicle acquired by the monitoring device, and the failure information of the equipment and the position of the railway vehicle from the in-vehicle communication device via the wireless communication network. It has a monitoring center that receives information, and the monitoring center analyzes the failure information of the device received from the in-vehicle communication device and selects a server that transmits the failure information and the location information.

According to this conventional vehicle condition monitoring system, failure information and the like of the railway vehicle equipment acquired by the vehicle monitoring device are transmitted by the in-vehicle communication device and transmitted to the monitoring center via the wireless communication network. Therefore, since the failure information of the equipment of the railway vehicle can be sent to the monitoring center in a state of high real-time performance, the state of the equipment mounted on the railway vehicle can be quickly grasped at the monitoring center, and the state of the equipment of the equipment can be grasped. The failure can be dealt with promptly.

Japanese Unexamined Patent Publication No. 2005-28945

However, Patent Document 1 only describes that the in-vehicle communication device transmits the failure information of the equipment of the railway vehicle and the position information of the railway vehicle, and it is unclear how to perform the transmission.

For example, in the conventional vehicle condition monitoring system disclosed in FIG. 1 of Patent Document 1 below, if information is simply transmitted periodically by the in-vehicle communication device, the vehicle can move into a tunnel, a mountainous area, or the like. If it is located, wireless communication between the in-vehicle communication device and the base station of the wireless communication network cannot be performed, and the information transmitted from the in-vehicle communication device at that time is received by the base station. As a result, the information received at the monitoring center is missing without reaching the monitoring center, and appropriate monitoring such as equipment failure cannot be performed.

Therefore, the vehicle is provided with area information for storing the area information indicating the area where wireless communication between the in-vehicle communication device and the base station cannot be performed, and based on the current position of the vehicle and the area information, for example. If the failure information is transmitted when the vehicle is located outside the area without transmitting the failure information when the vehicle is located in the area, the information received at the monitoring center can be obtained. Missing can be reduced.

In this case, the higher the accuracy of the area information, the more the omission of the information can be reduced, which is preferable.

Such circumstances are the same not only for failure information but also for other information collected in time series in rolling stock, and also for other moving objects such as automobiles as well as railroad cars.

The present invention has been made in view of such circumstances, and wirelessly communicates information collected in a mobile body in a time-series manner to a base station in a state of high real-time performance and reduced loss of information. It is an object of the present invention to provide a mobile information transmission device, a mobile information transmission system, and a mobile monitoring system using the same.

The following aspects are presented as means for solving the above problems. The information transmission device of the mobile body according to the first aspect is an information transmission device mounted on the mobile body, and has a communication unit that performs wireless communication with a base station on the ground side and the current position of the mobile body. A position detection unit to detect, an area information storage unit that stores area information indicating a predetermined area including an area where wireless communication cannot be performed, and basic information for collecting basic information for generating or updating the area information. The communication unit is controlled so that the information collected in time series in the mobile body is transmitted to the base station based on the current position and the area information. The area information is generated or updated based on the basic information collected by the basic information collecting means.

According to this first aspect, the information collected in time series in the mobile body is transmitted by the communication unit to the base station on the ground side by wireless communication. Therefore, according to the first aspect, unlike the conventional vehicle condition monitoring system disclosed in FIG. 2 of Patent Document 1, the conventional vehicle condition monitoring system disclosed in FIG. 1 of Patent Document 1. Similarly, the information collected in time series in the mobile body is delivered to the base station on the ground side (and by extension, the desired destination such as the server of the monitoring center connected to the base station by the network) in a highly real-time state. be able to.

Further, according to the first aspect, a position detection unit that detects the current position of the mobile body and an area information storage unit that stores area information indicating a predetermined area including an area in which wireless communication cannot be performed. The communication unit is controlled so that the information collected in time series in the mobile body is transmitted to the base station based on the current position and the area information. Information collected in time series in the body can be delivered to the base station by wireless communication in a state where the lack of information is reduced.

Then, according to the first aspect, the basic information collecting means for collecting the basic information for generating or updating the area information is provided, and the area information is the basic information collected by the basic information collecting means. Since the basic information is generated or updated based on the above, the basic information can be easily collected, and the basic information can be collected by the moving body that actually moves, so that the basic information is based on the basic information. By generating or updating the area information, the accuracy of the area information can be improved, whereby the information collected in time series in the moving body can be collected in a state where the lack of information is further reduced. It can be delivered to the base station by wireless communication.

In the first aspect of the mobile information transmitting device according to the second aspect, the basic information collecting means is an index indicating the current quality of the wireless communication or whether or not the index indicates a quality equal to or higher than a predetermined quality. The determination result and the current position of the moving body are associated with each other and are periodically collected as at least a part of the basic information.

This second aspect gives an example of the basic information. However, in the second aspect, the basic information is not limited to this example, and may include, for example, the index or the determination result and the time when the current position is collected.

The mobile information transmitter according to the third aspect is based on at least one of RSSI, SNR, noise intensity and CQI in the second aspect.

This third aspect gives a specific example of the index. However, in the third aspect, the index is not limited to these specific examples.

The information transmission device of the mobile body according to the fourth aspect is an information transmission device mounted on the mobile body, and is a plurality of communication units having different wireless communication methods, each of which corresponds to a base station on the ground side. A plurality of communication units that perform wireless communication between the two, a position detection unit that detects the current position of the moving body, and a plurality of types of predetermined areas corresponding to the plurality of communication units, each of which is a predetermined area. Stores area information indicating a plurality of types of predetermined areas, including an area in which wireless communication between the communication unit corresponding to the predetermined area of the type and the base station corresponding to the communication unit cannot be performed. Alternatively, an area information storage unit that stores area information indicating a common area common to the plurality of types of predetermined areas, and a basic information collecting means for collecting basic information for generating or updating the area information. The plurality of communication units are controlled so that the information collected in time series in the moving body is transmitted to the base station based on the current position and the area information. , Is generated or updated based on the basic information collected by the basic information collecting means.

According to this fourth aspect, the same advantages as those of the first aspect can be obtained, and since a plurality of communication units having different wireless communication methods are used, as compared with the case where only one communication unit is used. , Information can be delivered to any base station by wireless communication in a state where the loss of information is further reduced.

In the fourth aspect of the mobile information transmitting device according to the fifth aspect, the basic information collecting means is an index indicating the current quality of the wireless communication of each communication unit, or an index whose index is equal to or higher than a predetermined quality. The determination result of whether or not the quality is shown and the current position of the moving body are associated with each other and regularly collected as at least a part of the basic information.

This fifth aspect gives an example of the basic information. However, in the second aspect, the basic information is not limited to this example, and may include, for example, the index or the determination result and the time when the current position is collected.

The mobile information transmitter according to the sixth aspect is based on at least one of RSSI, SNR and CQI in the fifth aspect.

This sixth aspect gives a specific example of the index. However, in the fifth aspect, the index is not limited to these specific examples.

In the moving body information transmitting device according to the seventh aspect, the moving body is a railroad vehicle in any one of the first to sixth aspects.

This seventh aspect gives a specific example of a mobile body. However, in the first to sixth aspects, the moving body is not limited to the railway vehicle, and may be another moving body such as an automobile.

The moving body information transmission system according to the eighth aspect is a moving body information transmitting system having a plurality of information transmitting devices mounted on a plurality of moving bodies having at least a part of the same moving path. Each information transmission device includes a communication unit that performs wireless communication with a base station on the ground side, a position detection unit that detects the current position of the moving body on which the information transmission device is mounted, and the information transmission device. It is provided with an area information storage unit for storing area information indicating a predetermined area including an area where wireless communication cannot be performed in the above, and a basic information collecting means for collecting basic information for generating or updating the area information. In each of the information transmitting devices, the moving body on which the information transmitting device is mounted is based on the current position of the moving body on which the information transmitting device is mounted and the area information in the information transmitting device. The communication unit in the information transmission device is controlled so that the information collected in time series is transmitted to the base station, and the area in the information transmission device at least one of the plurality of information transmission devices. The information includes the basic information collected by the basic information collecting means in the information transmitting device and the basic information collected by the basic information collecting means in at least one other information transmitting device among the plurality of information transmitting devices. It is generated or updated based on or based on the basic information collected by the basic information collecting means in at least one other information transmitting device among the plurality of information transmitting devices.

Each of the information transmitting devices according to the eighth aspect corresponds to the information transmitting device according to the first aspect. In the information transmission device according to the first aspect, the area information used by itself is based on the basic information collected by its own basic information collecting means, whereas at least one of the above-mentioned at least one in the eighth aspect. In the information transmitting device, the area information used by itself is obtained by the basic information collected by its own basic information collecting means and the basic information collecting means of at least one other information transmitting device mounted on another mobile body. It is based on the collected basic information, or is based on the basic information collected by the basic information collecting means of the other at least one information transmitting device mounted on another mobile body. The at least one information transmitting device according to the eighth aspect can also obtain the same advantages as the information transmitting device according to the first aspect.

The mobile information transmission system according to the ninth aspect is a mobile information transmission system having a plurality of information transmission devices mounted on each of the plurality of mobile bodies, and each of the information transmission devices is a base on the ground side. A communication unit that performs wireless communication with a station, a position detection unit that detects the current position of the moving body on which the information transmission device is mounted, and an area where the information transmission device cannot perform the wireless communication. Each of the information transmission devices includes an area information storage unit that stores area information indicating a predetermined area including, and a basic information collecting means for collecting basic information for generating or updating the area information. Based on the current position of the moving body on which the transmitting device is mounted and the area information in the information transmitting device, the information collected in time series in the moving body on which the information transmitting device is mounted is obtained. The moving body in which the communication unit in the information transmitting device is controlled so as to be transmitted to the base station and the information transmitting device of at least one of the plurality of information transmitting devices is mounted is the plurality of moving bodies. The movement that subsequently travels the same movement path with respect to the moving body equipped with at least one other information transmitting device among the information transmitting devices, and is equipped with the at least one information transmitting device. When the body is located in the middle of the movement path, the information about the area ahead of the current position of the area information in the at least one information transmitting device is in the other at least one information transmitting device. It is updated based on the basic information collected by the basic information collecting means.

In each of the information transmission devices in the ninth aspect, the information collected in time series in the mobile body is transmitted by the communication unit of the information transmission device to the base station on the ground side by wireless communication. Therefore, according to each of the information transmission devices in the ninth aspect, unlike the conventional vehicle condition monitoring system disclosed in FIG. 2 of Patent Document 1, the information transmission device disclosed in FIG. 1 of Patent Document 1. Similar to the conventional vehicle condition monitoring system, the information collected in time series in the mobile body is collected in a highly real-time state at the base station on the ground side (and by extension, the server of the monitoring center connected to the base station via the network). It can be delivered to the desired destination).

Further, in each of the information transmitting devices according to the ninth aspect, a position detecting unit for detecting the current position of the moving body and a position detecting unit for detecting the current position of the moving body on which the information transmitting device is mounted. Each of the information transmission devices is equipped with an area information storage unit that stores area information indicating a predetermined area including an area in which the wireless communication cannot be performed in the information transmission device. Based on the current position of the mobile body and the area information in the information transmission device, the information collected in time series in the mobile body on which the information transmission device is mounted is transmitted to the base station. As described above, since the communication unit in the information transmitting device is controlled, the information collected in time series in the mobile body on which the information transmitting device is mounted can be obtained in a state where the lack of information is reduced. It can be delivered to the base station by wireless communication.

Each of the information transmitting devices according to the ninth aspect includes a basic information collecting means for collecting basic information for generating or updating the area information in the information transmitting device, and is among the plurality of information transmitting devices. The moving body equipped with at least one information transmitting device follows the same movement path with respect to the moving body equipped with at least one other information transmitting device among the plurality of information transmitting devices. When the moving body on which the at least one information transmitting device is mounted is located in the middle of the moving path, the current position of the area information in the at least one information transmitting device. Information about the area ahead is updated based on the basic information collected by the basic information collecting means in the at least one other information transmitting device. Therefore, according to the ninth aspect, even if the area where communication is not possible changes due to a certain base station not operating due to a failure or the addition of base stations, the change is relatively early. Since it is reflected in the area information in the at least one information transmitting device, the accuracy of the area information in the at least one information transmitting device is improved, whereby the moving body on which the at least one information transmitting device is mounted. The information collected in time series can be delivered to the base station by wireless communication in a state where the lack of information is further reduced.

In the eighth or ninth aspect of the mobile information transmission system according to the tenth aspect, the basic information collecting means in at least one information transmission device among the plurality of information transmission devices is in the information transmission device. An index indicating the current quality of the wireless communication or a determination result of whether or not the index indicates a quality equal to or higher than a predetermined quality and the current position of the mobile body on which the information transmitting device is mounted are associated with each other. It is periodically collected as at least a part of the basic information in the information transmission device.

This tenth aspect gives an example of the basic information. However, in the eighth and ninth aspects, the basic information is not limited to this example, and may include, for example, the index or the determination result and the time when the current position is collected.

In the tenth aspect of the mobile information transmission system according to the eleventh aspect, the index is based on at least one of RSSI, SNR, noise intensity and CQI.

The eleventh aspect gives a specific example of the index. However, in the fifth aspect, the index is not limited to these specific examples.

The moving body information transmission system according to the twelfth aspect is a moving body information transmitting system having a plurality of information transmitting devices mounted on a plurality of moving bodies having at least a part of the same moving path. Each information transmission device is a plurality of communication units having different wireless communication methods, each of which is equipped with a plurality of communication units that perform wireless communication with a corresponding base station on the ground side and the information transmission device. A position detection unit that detects the current position of the moving body and a plurality of types of predetermined areas corresponding to the plurality of communication units in the information transmission device, and each type of predetermined area is of the type. Stores area information indicating a plurality of types of predetermined areas including an area in which wireless communication cannot be performed between the communication unit corresponding to the predetermined area and the base station corresponding to the communication unit, or the plurality of items. Each of the above-mentioned information transmissions is provided with an area information storage unit for storing area information indicating a common area common to a predetermined area of a type, and a basic information collecting means for collecting basic information for generating or updating the area information. In the device, based on the current position of the moving body on which the information transmitting device is mounted and the area information in the information transmitting device, the moving body on which the information transmitting device is mounted is in chronological order. The plurality of communication units in the information transmitting device are controlled so that the collected information is transmitted to the base station, and the area information in at least one of the plurality of information transmitting devices is the area information. Based on the basic information collected by the basic information collecting means in the information transmitting device and the basic information collected by the basic information collecting means in at least one other information transmitting device among the plurality of information transmitting devices. Alternatively, it is generated or updated based on the basic information collected by the basic information collecting means in the other at least one information transmitting device among the plurality of information transmitting devices.

According to this twelfth aspect, the same advantages as those of the eighth aspect can be obtained, and since a plurality of communication units having different wireless communication methods are used, as compared with the case where only one communication unit is used. , Information can be delivered to any base station by wireless communication in a state where the loss of information is further reduced.

The mobile information transmission system according to the thirteenth aspect is a mobile information transmission system having a plurality of information transmission devices mounted on each of the plurality of mobile bodies, and each of the information transmission devices has a wireless communication system. Detects a plurality of different communication units, each of which performs wireless communication with a corresponding base station on the ground side, and the current position of the moving body on which the information transmission device is mounted. The position detection unit and the plurality of types of predetermined areas corresponding to the plurality of communication units in the information transmission device, and each type of predetermined area corresponds to the communication unit and the communication unit corresponding to the predetermined area of the type. Stores area information indicating a plurality of types of predetermined areas including an area in which wireless communication with a base station corresponding to the communication unit cannot be performed, or stores a common area common to the plurality of types of predetermined areas. The area information storage unit for storing the indicated area information and the basic information collecting means for collecting the basic information for generating or updating the area information are provided, and the information transmission device is mounted on each of the information transmission devices. Based on the current position of the moving body and the area information in the information transmitting device, the information collected in time series in the moving body equipped with the information transmitting device is transmitted to the base station. The moving body in which the plurality of communication units in the information transmitting device are controlled and at least one of the plurality of information transmitting devices is mounted is the plurality of information transmitting devices. The moving body on which at least one of the other information transmitting devices is mounted is subsequently moved along the same movement path, and the moving body on which the at least one information transmitting device is mounted is said to be the moving body. When located in the middle of the movement path, the information about the area ahead of the current position of the area information in the at least one information transmitting device is the basic information in the other at least one information transmitting device. It is updated based on the basic information collected by the collection means.

According to this thirteenth aspect, the same advantages as those of the ninth aspect can be obtained, and since a plurality of communication units having different wireless communication methods are used, as compared with the case where only one communication unit is used. , Information can be delivered to any base station by wireless communication in a state where the loss of information is further reduced.

In the mobile information transmission system according to the fourteenth aspect, in any one of the twelfth or thirteenth aspects, the basic information collecting means in at least one of the plurality of information transmission devices is the said. An index indicating the current quality of the wireless communication of each communication unit in the information transmitting device, or a determination result of whether or not the index indicates a quality equal to or higher than a predetermined quality, and the mobile body on which the information transmitting device is mounted. The current position is associated with each other and is periodically collected as at least a part of the basic information in the information transmitting device.

This fourteenth aspect gives an example of the basic information. However, in the twelfth and thirteenth aspects, the basic information is not limited to this example, and may include, for example, the index or the determination result and the time when the current position is collected.

In the fourteenth aspect of the mobile information transmission system according to the fifteenth aspect, the index is based on at least one of RSSI, SNR, noise intensity and CQI.

The fifteenth aspect gives a specific example of the index. However, in the fourteenth aspect, the index is not limited to these specific examples.

In the method for transmitting information on a moving body according to the sixteenth aspect, in the aspect according to any one of the eighth to fifteenth aspects, the moving body is a railroad vehicle.

This 16th aspect gives a specific example of a mobile body. However, in the eighth to fifteenth aspects, the moving body is not limited to the railway vehicle, and may be another moving body such as an automobile.

The mobile information transmission system according to the seventeenth aspect is the mobile information transmission device according to any one of the first to seventh aspects or the mobile information transmission system according to any of the eighth to sixteenth aspects. A server of a monitoring center that receives the information transmitted by the information transmitting device via a network including the base station.

According to this seventeenth aspect, the information collected in time series in the mobile body can be sent to the server of the monitoring center in a state of high real-time performance and reduced information loss, so that monitoring can be performed. The state of the moving body can be quickly grasped at the center, and measures can be taken promptly according to the state.

According to the present invention, information transmission of a mobile body capable of transmitting information collected in a time-series manner in the mobile body to a base station by wireless communication in a state of high real-time performance and reduced loss of information. It is possible to provide an apparatus, an information transmission system for a mobile body, and a mobile body monitoring system using the device.

It is a schematic block diagram which shows the mobile body monitoring system by 1st Embodiment of this invention. It is a schematic block diagram which shows the railroad vehicle as a moving body in FIG. 1, and the monitoring device and the information transmission device mounted on this railroad vehicle. An example of a predetermined area indicated by the area information used in the information transmission device of the mobile monitoring system according to the first embodiment of the present invention is a non-communication area and a communicable area in a part of the movement route of a railroad vehicle on a map. It is explanatory drawing which shows typically in relation to. It is a schematic flowchart which shows an example of the operation of the information transmission apparatus shown in FIG. 1 and FIG. It is a schematic flowchart which shows the detail of the periodic processing in FIG. It is a schematic flowchart which shows the detail of the determination process by the area information in FIG. It is a schematic flowchart which shows the detail of the determination process by the communication quality index in FIG. It is a schematic flowchart which shows the detail of the transmission process of the attribute addition information in FIG. It is a schematic flowchart which shows the detail of the basic information collection process in FIG. It is a figure which shows typically an example of the present position and the future position of a railroad vehicle in relation to the predetermined area indicated by the area information used in the information transmission device of the mobile body monitoring system according to the 1st Embodiment of this invention. .. It is a schematic flowchart which shows the detail of the determination process by the area information in FIG. 5 of the information transmission device of the mobile object monitoring system according to the 2nd Embodiment of this invention. It is a figure which shows typically an example of the present position and the future position of a railroad vehicle in relation to the predetermined area indicated by the area information used in the information transmission device of the railroad vehicle monitoring system according to the 3rd Embodiment of this invention. .. It is a schematic flowchart which shows the detail of the periodic processing in FIG. 4 of the information transmission device of the mobile monitoring system according to the 4th Embodiment of this invention. It is a schematic block diagram which shows the mobile body monitoring system by 5th Embodiment of this invention. It is a schematic block diagram which shows the railroad vehicle as a moving body in FIG. 14, and the monitoring device and the information transmission device mounted on the railroad vehicle. It is a schematic block diagram which shows the mobile body monitoring system by 7th Embodiment of this invention. FIG. 6 is a schematic configuration diagram showing a railroad vehicle as a moving body in FIG. 16 and a monitoring device and an information transmitting device mounted on the railroad vehicle. An example of a plurality of types of predetermined areas corresponding to a plurality of communication units indicated by area information used in the information transmission device of the mobile monitoring system according to the seventh embodiment of the present invention, and an example of their common areas. It is explanatory drawing which shows typically in relation to the non-communication area and the communicable area of each communication part in a part of the movement route of the railroad vehicle on the map. 16 is a schematic flowchart showing an example of the operation of the information transmission device shown in FIGS. 16 and 17. It is a schematic flowchart which shows the detail of the periodic processing in FIG. It is a schematic flowchart which shows the detail of the determination process by the area information in FIG. It is a schematic flowchart which shows the detail of the determination process by the communication quality index in FIG. It is a schematic flowchart which shows the detail of the transmission process of the attribute addition information in FIG. It is a schematic flowchart which shows the detail of the basic information collection process in FIG. It is a figure which shows typically an example of the present position and the future position of a railroad vehicle in relation to the common area indicated by the area information used in the information transmission device of the mobile body monitoring system according to the 7th Embodiment of this invention. .. It is a schematic flowchart which shows the detail of the determination process by the area information in FIG. 20 of the information transmission device of the mobile object monitoring system according to the 8th Embodiment of this invention. It is a figure which shows typically an example of the present position and the future position of a railroad vehicle in relation to the common area indicated by the area information used in the information transmission device of the railroad vehicle monitoring system according to the 9th Embodiment of this invention. .. FIG. 5 is a schematic flowchart showing details of periodic processing in FIG. 19 of an information transmission device of a mobile monitoring system according to a tenth embodiment of the present invention. FIG. 5 is a schematic flowchart showing details of periodic processing in FIG. 19 of an information transmission device of a mobile monitoring system according to an eleventh embodiment of the present invention. It is a schematic block diagram which shows the railroad vehicle as a moving body in FIG. 19, and the monitoring device and the information transmission device mounted on this railroad vehicle.

Hereinafter, the mobile information transmission device, the mobile information transmission system, and the mobile monitoring system according to the present invention will be described with reference to the drawings.

[First Embodiment]

FIG. 1 is a schematic configuration diagram showing a mobile monitoring system 1 according to the first embodiment of the present invention. FIG. 2 is a schematic configuration diagram showing a railroad vehicle 100 as a moving body in FIG. 1, a monitor device 11 mounted on the railroad vehicle 100, and an information transmission device 12.

The mobile body monitoring system 1 according to the present embodiment transmits information collected in time series in the railroad vehicle 100 by the monitoring device 11 mounted on the railroad vehicle 100 as a mobile body to the base station 13A on the ground side by wireless communication. An information transmission device 12 that transmits and is mounted on the railcar 100, and a monitoring center server 14 that receives the information transmitted by the information transmission device 12 via a network 13 including a mobile communication network including the base station. , Is equipped. The information transmission device 12 is a mobile information transmission device according to an embodiment of the present invention.

The mobile communication network may be provided by a mobile communication operator, or may be dedicated to a railway system, for example. The network 13 may include the Internet, a public switched telephone network (PSTN), a packet switching network (PSN), an ISDN (Integrated Services Digital Network), and the like.

The information collected by the monitoring device 11 in the railway vehicle 100 in time series includes, for example, the states of various devices and devices mounted on the railway vehicle 100, detection information from various sensors, various operations by crew members, and the like. (For example, information notifying that there is a shortage of equipment, etc.), such as the speed of the railroad vehicle 100 and the distance from the starting point to the own position of the railroad vehicle 100 (for example, while correcting with a station or a ground element). The distance detected based on the number of rotations of the wheel) and the like are included. The monitoring device 11 has a function of displaying the device status and the like based on the collected information and presenting it to a crew member such as a driver.

In the present embodiment, the information transmission device 12 is an input / output in which the monitor device 11 is connected to receive the information collected from the CPU 21, the ROM 22, the RAM 23, and the monitor device 11, or is connected to an external device (not shown) or the like. An interface 24, a timekeeping unit 25 having a timekeeping function (clock function) and outputting current time information, a communication unit 26 that performs wireless communication by radio waves between the base station 13A, and a storage device 27 such as a hard disk or SSD. A GPS receiving unit 28 as a position detecting unit for detecting the current position of the railroad vehicle 100, and a bus 29 connecting these to each other are provided. In the present embodiment, when the GPS receiving unit 28 cannot receive the GPS signal in a tunnel or the like, the distance from the starting point obtained from the monitoring device 11 is used as the current position of the railway vehicle 100.

In the present embodiment, the communication unit 26 has a function as an index acquisition unit 26a for acquiring an index indicating the current quality of wireless communication between the communication unit 26 and the base station 13A. The index can be based on, for example, at least one of RSSI (received signal strength display), SNR (signal-to-noise ratio), noise strength and CQI (channel quality display).

For example, when the communication unit 26 can acquire RSSI as a function of the index acquisition unit 26a but cannot acquire the noise intensity, the CPU 21 has a predetermined value (for example, −) of the RSSI value obtained from the communication unit 26. If it is 73 dB) or more, it is determined that the wireless communication can be performed, and it is determined that the index is equal to or higher than the predetermined quality, and if the RSSI value is smaller than the predetermined value, the said Assuming that wireless communication cannot be performed, it is determined that the index indicates that the quality is lower than the predetermined quality.

Further, for example, when the communication unit 26 can acquire both RSSI and noise intensity as a function of the index acquisition unit 26a, the CPU 21 has the first aspect that the value of RSSI is equal to or higher than a predetermined value (for example, −73 dB). When the second condition that the SNR calculated by the formula of SNR (dB) = RSSI (dBm) -noise intensity (dBm) is equal to or more than a predetermined value (for example, 25 dBm) is satisfied, the above condition is satisfied. Assuming that wireless communication can be performed, it is determined that the index indicates that the quality is equal to or higher than the predetermined quality, and if either of the first and second conditions is not satisfied, the wireless communication can be performed. If it cannot be determined, it is determined that the index is lower than the predetermined quality.

In the present embodiment, the information transmission device 12 stores area information indicating a predetermined area 203 including an area (communication-impossible area) 201 in which wireless communication between the communication unit 26 and the base station 13A cannot be performed. It has an information storage unit 27a. In the present embodiment, the area information storage unit 27a is a part of the storage area of the storage device 27, but is not limited to this. For example, when the railroad vehicle 100 returns to the base, by connecting a personal computer or the like to the input / output interface 24, the area information can be newly stored in the area information storage unit 27a by the personal computer or the like, or the area information can be stored. Area information can be updated in the storage unit 27a.

FIG. 3 shows an example of a predetermined area 203 indicated by the area information used in the information transmission device 12 of the mobile monitoring system 1 according to the present embodiment, which is a non-communication area 201 in a part of the movement route 200 of the railroad vehicle on the map. It is explanatory drawing which shows typically in relation to the communicable area (the area where wireless communication between a communication part 26 and a base station 13A can be performed) 202. In FIG. 3, in the movement path 200, the black portion indicates the non-communicable area 201, and the white portion indicates the communicable area 202. In the present embodiment, the predetermined area 203 is the same as the non-communication area 201, but this is not always the case in the present invention.

The area information indicating the predetermined area 203 may be information that directly indicates the predetermined area 203, or may be information that directly indicates an area other than the predetermined area 203. In the latter case, the area other than the predetermined area 203 indirectly indicates the predetermined area by the other areas.

The non-communication area 201 may be set as a known area such as a tunnel area or an area far from the base station 13A, or the railway vehicle 100 itself or another vehicle of the same type may be set in step S17 in FIG. 5 described later. It may be determined based on the basic information obtained by traveling in the past, or may be determined based on the basic information actually measured by the same method as step S17 in FIG. 5 described later. The railway vehicle 100 is actually driven, and the communication unit 26 periodically transmits the current position of the railway vehicle 100 in association with the current time, sends it to the server 14, and is based on the position of the missing railway vehicle 100 that does not reach the server 14. It may be determined, or one or two or more of them may be used in combination to determine or update.

However, in the present embodiment, as will be described later, the area information is generated or updated based on the basic information collected by the railway vehicle 100 itself in step S17 in FIG. 5 to be described later. There is.

In the present embodiment, the information transmission device 12 is collected by the collection information storage unit 27b that stores the information collected in time series in the railway vehicle 100 by the monitoring device 11 and in step S17 in FIG. 5 described later. The basic information storage unit 27c for storing the basic information for generating or updating the area information is provided. In the present embodiment, the collected information storage unit 27b and the basic information storage unit 27c are each a part of the storage area of the storage device 27, but the present invention is not limited to this.

In the present embodiment, the communication unit is controlled so that the information collected in time series in the railway vehicle 100 is transmitted to the base station 13A based on the current position of the railway vehicle 100 and the area information.26 Is controlled.

FIG. 4 is a schematic flowchart showing an example of the operation of the information transmission device 12 shown in FIGS. 1 and 2.

When the information transmission device 12 starts operation, the CPU 21 of the information transmission device 12 reads the current time at that time from the time measuring unit 25 (step S1), and the current time is the start timing of the periodic processing (predetermined time (for example, 1 second). ) Every start timing) is determined (step S2).

If it is determined in step S2 that the current time is not the start timing of the periodic processing, the process returns to step S1 and waits until the current time is the start timing of the periodic processing. On the other hand, if it is determined in step S2 that the current time is the start timing of the periodic processing, the process proceeds to step S3.

In step S3, the CPU 21 receives new information collected by the monitor device 11 in time series from the monitor device 11 and stores it in the collected information storage unit 27b. In the present embodiment, the time interval of the information collection timing by the monitoring device 11 and the time interval of the start timing of the periodic processing are the same (for example, 1 second). As a result, in the present embodiment, the information received from the monitor device 11 in step S3 is only the information most recently collected by the monitor device 11. However, the time intervals of the two do not necessarily have to match, and for example, the time interval of the start timing of the periodic processing may be double the time interval of the information collection timing by the monitoring device 11. In this case, the information received from the monitoring device 11 in step S3 is the information most recently collected by the monitoring device 11 and the information collected one time before.

The information collected by the monitoring device 11 in time series and stored in the collected information storage unit 27b in step S3 is retained in the collected information storage unit 27b without being deleted as it is even after steps S15 and S16 described later. For example, when the railroad vehicle 100 returns to the base, by connecting a personal computer or the like to the input / output interface 24, the information can be read from the collected information storage unit 27b by the personal computer or the like.

Subsequently, after the periodic processing (step S4) is performed, the process returns to step S1.

FIG. 5 is a schematic flowchart showing details of the periodic process (step S4) in FIG.

When the periodic process (step S4) is started, the CPU 21 first performs a determination process (step S11) based on the area information. FIG. 6 is a schematic flowchart showing details of the determination process (step S11) based on the area information in FIG.

When the determination process based on the area information (step S11) is started, the CPU 21 first reads the current position of the railway vehicle 100 at that time from the GPS receiving unit 28 (step S21). At this time, if the GPS receiving unit 28 cannot receive the GPS signal, the CPU 21 reads the distance from the starting point from the monitoring device 11 as the current position of the railway vehicle 100.

Next, the CPU 21 reads the area information from the area information storage unit 27a (step S22).

Subsequently, the CPU 21 determines whether or not the current position read by step S21 is within the predetermined area 203 indicated by the area information read in step S22 (step S23).

When it is determined in step S23 that the current position is within the predetermined area 203, the CPU 21 sets the determination result flag FA to 1 (step S28), ends the determination process based on the area information (step S11), and FIG. The process proceeds to step S12. On the other hand, if it is determined in step S23 that the current position is not within the predetermined area 203 (that is, outside the predetermined area 203), the determination result flag FA is set to 0 (step S27), and the determination process based on the area information (step S27). Step S11) is completed, and the process proceeds to step S12 in FIG.

In step S12, the CPU 21 determines whether or not the determination result flag FA is 1. If it is determined that the determination result flag FA is 1, the process proceeds to step S18. On the other hand, if it is determined that the determination result flag FA is not 1 (that is, it is 0), the process proceeds to step S13.

In step S13, the CPU 21 performs a determination process based on the communication quality index. FIG. 7 is a schematic flowchart showing details of the determination process (step S13) based on the communication quality index in FIG.

When the determination process based on the communication quality index (step S13) is started, the CPU 21 first reads the index indicating the current quality of the wireless communication at that time from the communication unit 26 functioning as the index acquisition unit 26a (step). S31), it is determined by the method as described above whether or not the index indicates that the quality is equal to or higher than the predetermined quality (step S32).

When it is determined in step S32 that the current index is equal to or higher than the predetermined quality (that is, wireless communication between the communication unit 26 and the base station 13A can be performed), the CPU 21 determines the determination result flag FB. Is set to 1 (step S33), the determination process based on the communication quality index (step S13) is completed, and the process proceeds to step S14 in FIG. On the other hand, if it is determined in step S32 that the current index is not equal to or higher than the predetermined quality (that is, wireless communication between the communication unit 26 and the base station 13A cannot be performed), the CPU 21 determines the determination result. The flag FB is set to 0 (step S34), the determination process based on the communication quality index (step S13) is completed, and the process proceeds to step S14 in FIG.

In step S14, the CPU 21 determines whether or not the determination result flag FB is 1. If it is determined that the determination result flag FB is not 1 (that is, it is 0), the process proceeds to step S18. On the other hand, if it is determined that the determination result flag FB is 1, the process proceeds to step S15.

In step S18, the CPU 21 still sets the processing target of step S18 as the processing target of step S15 and thereafter among the information read in the immediately preceding step S3 (of the information collected by the monitoring device 11 in the railway vehicle 100 in time series). Attribute that should be sent later for new information that has not been given). In the present embodiment, the CPU 21 generates a plurality of packets from the information in order to transmit the information in packets later, and the plurality of packets are a predetermined storage area in the RAM 23 (referred to as an “attribute-granting information storage area”). The attribute is given by storing in. The packet stored in the attribute assignment information storage area in the RAM 23 waits to be transmitted in step S16, which will be described later. At this time, in the present embodiment, the information read in step S3 and stored in the collected information storage unit 27b is held in the collected information storage unit 27b without being deleted as it is. The format for assigning the attribute to the information is not limited to being stored as a packet in the attribute-assigned information storage area in the RAM 23, and is transmitted later with respect to the information stored in the collected information storage unit 27b, for example. The attribute may be given by associating attribute data indicating that it should be.

After step S18, the process proceeds to step S17.

In step S15, the CPU 21 performs a process of transmitting new information. In the present embodiment, in step S15, the CPU 21 also steps to the processing target of step S18 among the information read in the immediately preceding step S3 (the information collected by the monitoring device 11 in the railway vehicle 100 in time series). In order to transmit packets of new information that has not been processed in S15 or later), a plurality of packets are generated from the information, and these packets are sequentially transmitted at predetermined time intervals. 26 is controlled.

Next, the CPU 21 performs an attribute assignment information transmission process (step S16). FIG. 8 is a schematic flowchart showing details of the attribute assignment information transmission process (step S16) in FIG.

When the attribute assignment information transmission process (step S16) is started, the CPU 21 first acquires the number of packets in the attribute assignment information storage area (step S41), and determines whether or not the number of packets is 0. (Step S42).

When it is determined in step S42 that the number of packets is 0 (that is, there are no packets in the attribute assignment information storage area), the attribute assignment information transmission process (step S16) is terminated, and step S17 in FIG. Move to. On the other hand, if it is determined in step S42 that the number of packets is not 0 (that is, the packets exist in the attribute assignment information storage area), the process proceeds to step S43.

In step S43, if the number of packets in the attribute-giving information storage area is equal to or greater than a predetermined number, the CPU 21 may use the predetermined number of packets in the attribute-giving information storage area as the number of packets in the attribute-giving information storage area. If is less than a predetermined number, the communication unit 26 controls all the packets in the attribute-imparted information storage area so that these packets are sequentially transmitted at predetermined time intervals. By the start timing of the next periodic processing, the packet transmission in step S15 and the packet transmission in step S16 are completed.

Subsequently, the CPU 21 releases the attribute assigned to the transmitted packet by deleting the packet transmitted in step S43 from the attribute assignment information storage area (step S44). After that, the process of transmitting the attribute assignment information (step S16) is completed, and the process proceeds to step S17 in FIG.

In step S17, the CPU 21 performs a basic information collecting process for collecting basic information for generating or updating the area information. FIG. 9 is a schematic flowchart showing details of the basic information collection process (step S17) in FIG.

When the basic information collection process (step S17) is started, the CPU 21 first reads the current position of the railway vehicle 100 at that time in the same manner as in step S21 (step S51).

Next, similarly to step S31, the CPU 21 reads an index indicating the current quality of the wireless communication at that time (step S52), and determines whether or not the index indicates that the quality is equal to or higher than the predetermined quality. (Step S53).

Subsequently, the CPU 21 reads the current time at that time from the time measuring unit 25 (step S54).

After that, the CPU 21 associates the current position read in step S51, the current index read in step S52, the determination result acquired in step S53, and the current time read in step S54 with each other, and provides basic information as the basic information. Write to the storage unit 27c (step S55).

It should be noted that, without performing step S51, the current position read in the immediately preceding step S21 may be used as the basic information instead of the current position read in step S51. Further, when steps S31 and S32 have already been performed in the same periodic processing (step S4), the current index obtained in steps S52 and S53 and the current index obtained in steps S52 and S53 are used as basic information without performing steps S52 and S53. Instead of the determination result, the current index and determination result obtained in steps S31 and S32 may be used. Further, the current time read in the immediately preceding step S1 may be used as the basic information without performing step S54.

When step S55 is completed, the basic information collection process (step S17) is completed, thereby ending the periodic process (step S4) and returning to step S1 in FIG.

The basic information written in the basic information storage unit 27c in step S55 can be obtained by connecting a personal computer or the like to the input / output interface 24 when the railway vehicle 100 returns to the base. It can be read from the storage unit 27c. The area information can be generated or updated by using the basic information.

In the present embodiment, steps S11 to S14 set the operation mode for transmission from the communication unit 26 to the base station 13A as the operation mode of the first operation mode and the second operation mode based on the current position and the area information. It is an operation mode determining means that periodically determines which one to use, and when the current position is within the predetermined area 203, it is determined to be the first operation mode, and the current position is the predetermined area. It corresponds to the operation mode determining means for determining the second operation mode on the condition that it is outside 203. Further, in the present embodiment, step S18 corresponds to the processing of the first operation mode, and steps S15 and S16 correspond to the processing of the second operation mode.

Then, in the present embodiment, when step S18 is determined to be the first operation mode by the operation mode determining means, the first of the information collected in time series in the railway vehicle 100 is still present. It corresponds to an attribute-imparting means for imparting an attribute that a new information that has not been processed in the operation mode or the second operation mode should be transmitted later. Further, in the present embodiment, when steps S15 and S16 (however, excluding step S44) are determined to be the second operation mode by the operation mode determining means, the railway vehicle 100 is in chronological order. Of the collected information, new information that has not yet been processed in the first operation mode or the second operation mode, and at least a part of the information to which the attribute is assigned are the bases. It corresponds to the communication control unit that controls the communication unit 26 so as to be transmitted to the station. Further, in the present embodiment, step S44 corresponds to the attribute canceling means for canceling the attribute given to at least a part of the information to which the attribute is given after the information is transmitted. ing.

According to the present embodiment, the information collected in time series in the railroad vehicle 100 is transmitted by the communication unit 26 to the base station 13A on the ground side by wireless communication. Therefore, according to the present embodiment, the information collected in time series in the railroad vehicle 100 is collected by the monitoring center 13A on the ground side (and by extension, the monitoring center connected to the base station 13A via a network) in a state of high real-time performance. It can be delivered to the server 14). Therefore, the state of the railroad vehicle 100 can be quickly grasped at the monitoring center, and measures can be taken promptly according to the state.

Then, in the present embodiment, steps S11 to S14 periodically determine which of the first operation mode and the second operation mode is to be set based on the current position and the area information. When the current position is within the predetermined area 203, the first operation mode is determined, and the second operation mode is determined on condition that the current position is outside the predetermined area 203. When the operation mode of 1 is determined, new information that has not yet been processed in the first operation mode or the second operation mode among the information collected in the railroad vehicle 100 in time series. On the other hand, when the attribute that the information should be transmitted later is given (step S18) and the second operation mode is determined, the information collected in the railcar 100 in time series is still the first. At least a part of the new information that has not been processed in the operation mode 1 or the second operation mode and the information to which the attribute is given is transmitted to the base station (step S15, S16).

Therefore, according to the present embodiment, basically, when the current position of the railroad vehicle 100 is within the predetermined area 203, the attribute is given to the new information at that time, and the current position of the railroad vehicle 100 is the said. When it is outside the predetermined area, the new information at that time and the information to which the attribute is added are transmitted, so that the wireless communication is transmitted even though the wireless communication cannot actually be performed, and the transmission is properly completed. Many of the situations in which the information is not even resent as if it had been done are prevented, and as a result, the information collected in time series in the railway vehicle 100 is wirelessly communicated to the base station 13A in a state where the lack of information is reduced. Can be delivered by. Not only that, according to the present embodiment, basically, when the current position of the railroad vehicle 100 is outside the predetermined area 203, at least new information at that time is transmitted (step S15), so that it is relatively relative. High-value new information will be transmitted in preference to old information with relatively low value, and the information collected in time series in the railroad vehicle 100 will be wirelessly communicated to the base station in a more real-time state. Can be delivered by.

Further, according to the present embodiment, when the first operation mode is determined (YES in step S12 and NO in step S14), information is not transmitted, so that the communication unit In many cases, it is possible to avoid unnecessary transmission operation by 26. However, in the present invention, the information may be transmitted even when the first operation mode is determined.

Further, according to the present embodiment, since the basic information for generating or updating the area information is collected in step S17, the basic information can be easily collected, and the railway actually moving. Since the basic information can be collected by the vehicle 100, the accuracy of the area information can be improved by generating or updating the area information based on the basic information.

Furthermore, according to the present embodiment, the information collected in time series in the railway vehicle 100 is readable and stored in the collected information storage unit 27b regardless of whether or not the information is transmitted. Since the information is retained, the information collected in time series is stored in the collected information storage unit 27b as a whole. Therefore, for example, the information is read out at the base of the railway vehicle 100 and the failure status of the railway vehicle 100. It is also possible to analyze in detail. However, among the information recorded in the collected information storage unit 27b, the information transmitted in steps S15 and S16 may be deleted from the collected information storage unit 27b. In this case, the storage capacity of the collected information storage unit 27b can be suppressed.

Then, in the present embodiment, the area information is generated or updated based on the basic information collected by the railway vehicle 100 itself in step S17 in FIG. 5 described above.

That is, in the present embodiment, for example, when the area information storage unit 27a first newly stores the area information, the railway vehicle 100 is made to test run the movement route one or more times, and at that time, in step S17. The basic information collected and stored in the basic information storage unit 27c is read out by a personal computer or the like connected to the input / output interface 24, the area information is created based on the basic information, and the created area information is used as an area by the personal computer. It is stored in the information storage unit 27a. At this time, the area information based on the basic information may be automatically created according to a program such as a personal computer, or the basic information may be presented to the creator and created by intervening the judgment of the creator. It may be done.

Alternatively, in the present embodiment, the area information newly newly stored in the area information storage unit 27a is assumed to be created by an arbitrary method (such as the method described above), and is stepped during the actual operation of the railroad vehicle 100. When the railcar 100 returns to the base or the like, the basic information collected in S17 and stored in the basic information storage unit 27c is read out by a personal computer or the like connected to the input / output interface 24, and the basic information obtained during each run is read. Are sequentially accumulated, and based on the accumulated basic information, the area information is created as update area information, and the area information in the area information storage unit 27a is updated to the update area information. May be good. In this case as well, the area information for update may be created automatically, or the creator may intervene to create it. By using the basic information obtained during a large number of trips, statistical processing and the like can be performed, and highly accurate update area information can be created. In addition, if the radio wave sensitivity (and thus the non-communication area 201) is affected by the traveling time zone, season, weather (weather information can be obtained from the Japan Meteorological Agency, etc. via a network, etc. based on the date and time), A plurality of types of area information using these as parameters may be created, and the area information according to the actual traveling time zone, season, etc. may be read in step S21.

According to the present embodiment, the basic information for generating or updating the area information is collected in step S17, and the area information is generated or updated based on the basic information collected in step S17. Therefore, the basic information can be easily collected, and the basic information can be collected by the actually moving railroad vehicle 100, so that the area information can be generated or updated based on the basic information. By doing so, the accuracy of the area information can be improved, whereby the information collected in time series in the railcar 100 is delivered to the base station 13A by wireless communication in a state where the lack of information is further reduced. be able to.

[Second Embodiment]

FIG. 10 shows the current position and future position of the railroad vehicle 100 in relation to the predetermined area 203 indicated by the area information used in the information transmission device 12 of the mobile monitoring system 1 according to the first embodiment. It is a figure which shows an example schematically.

In FIG. 10, the railroad vehicle 100 at the current position is shown by a solid line, and the railroad car 100 at a future position is shown by a broken line. X in FIG. 10 is the traveling direction of the railway vehicle 100. FIG. 10 shows not only the predetermined area 203 but also the non-communication area 201 and the communicable area 202. As described above, in the first embodiment, the predetermined area 203 is made the same as the non-communication area 201. In FIG. 10, the railroad vehicle 100 is currently located in the communicable area 202 in front of the non-communicable area 201, but is located near the non-communicable area 201. The railroad vehicle 100 is in the non-communicable area 201 in the near future as indicated by the broken line.

In such a case, in the first embodiment, even if NO is determined in step S12 and YES in step S14 and the second operation mode is determined, the actual steps S15 and S16 are actually performed. Since the railroad vehicle 100 is in the non-communication area 201 at the time of transmission, wireless communication between the communication unit 26 and the base station 13A cannot be performed, and the information to be delivered is missing.

On the other hand, the information transmission device of the mobile monitoring system according to the second embodiment of the present invention can reduce or prevent such information loss.

The difference between the second embodiment of the present invention and the first embodiment is that in the first embodiment, the processing content of the determination process (step S11) based on the area information in FIG. 5 is FIG. In contrast to the processing content shown in FIG. 11, in the present embodiment, only the processing content of the determination process (step S11) based on the area information in FIG. 5 is the processing content shown in FIG.

FIG. 11 is a schematic flowchart showing the details of the determination process based on the area information in FIG. 5 of the information transmission device of the mobile monitoring system according to the second embodiment of the present invention, and corresponds to FIG.

The processing content shown in FIG. 11 differs from the processing content shown in FIG. 6 only in that steps S24 to S26 are added to FIG. 6 in FIG.

In FIG. 11, if NO in step S23, the CPU 21 reads the current speed of the railway vehicle 100 from the monitoring device 11 (or directly from the vehicle speed sensor) (step S24), and a predetermined time elapses from the present based on the speed. The position (future position) of the future railroad vehicle 100 after (for example, 10 seconds) is predicted (step S25), and it is determined whether or not the predicted future position is within the predetermined area 203 (step S26). If the determination result is YES, the process proceeds to step S28, and if the determination result is NO, the process proceeds to step S27.

Therefore, in the present embodiment, even if the railroad vehicle 100 is currently located in the communicable area 202, if the predicted position after the lapse of a predetermined time enters the non-communicable area 201, it enters the currently non-communication area 201. It will be treated as if it were. Therefore, according to the present embodiment, in the situation shown in FIG. 10, YES in step S26 in FIG. 11, so that the lack of delivered information is reduced or prevented.

In addition, other than the above points, the same advantages as those of the first embodiment can be obtained by the present embodiment.

[Third Embodiment]

FIG. 12 shows an example of the current position and future position of the railway vehicle 100 in relation to the predetermined area 203 indicated by the area information used in the information transmission device 12 of the railway vehicle monitoring system according to the third embodiment of the present invention. It is a diagram schematically shown and corresponds to FIG.

Similar to the second embodiment, the present embodiment can also reduce or prevent the loss of information that occurs in the first embodiment.

The difference between the present embodiment and the first embodiment is that in the first embodiment, the predetermined area 203 is the same as the non-communication area 201, whereas in the present embodiment, the predetermined area 203 is the same as the non-communication area 201. In addition to the non-communication area 201, the predetermined area 203 is located in front of the traveling direction X of the railway vehicle 100 in the non-communication area 201 and is capable of performing the wireless communication (“additional area” in FIG. 12). However, it is only a point including an area having a predetermined distance in the traveling direction X (“additional area” in FIG. 12). In the present embodiment, more specifically, the predetermined area 203 is obtained by adding an additional area to the non-communication area 201.

In the present embodiment, unlike the second embodiment, the processing content of the determination process based on the area information in FIG. 5 is the same as the processing content shown in FIG. 6, as in the first embodiment. There is.

According to the present embodiment, in the present embodiment, even if the railroad vehicle 100 is currently located in the communicable area 202, it is located in the predetermined area 203 in the case shown in FIG. It is treated as if it is currently in the non-communication area 201. Therefore, according to the present embodiment, the lack of information that occurs in the first embodiment is reduced or prevented as in the second embodiment.

In addition, other than the above points, the same advantages as those of the first embodiment can be obtained by the present embodiment.

[Fourth Embodiment]

FIG. 13 is a schematic flowchart showing details of periodic processing (step S4) in FIG. 4 of the information transmission device of the mobile monitoring system according to the fourth embodiment of the present invention, and corresponds to FIG.

The difference between the present embodiment and the first embodiment is that in the first embodiment, the processing content of the periodic processing (step S4) in FIG. 4 is the processing content shown in FIG. On the other hand, in the present embodiment, only the processing content of the periodic processing (step S4) in FIG. 4 is the processing content shown in FIG.

The difference between the processing content shown in FIG. 13 and the processing content shown in FIG. 5 is that in FIG. 13, steps S13 and S14 are removed with respect to FIG. 5, and if NO in step S12, the process proceeds to step S15. Only.

The present embodiment also provides almost the same advantages as the first embodiment.

In the present invention, the first embodiment is modified to obtain the second embodiment, or the first embodiment is modified to obtain the third embodiment. A modification similar to that obtained in the fourth embodiment may be applied to the fourth embodiment.

[Fifth Embodiment]

FIG. 14 is a schematic configuration diagram showing a mobile monitoring system 51 according to a fifth embodiment of the present invention, and corresponds to FIG. FIG. 15 is a schematic configuration diagram showing a railway vehicle 100 as a moving body in FIG. 14, and a monitoring device 11 and an information transmitting device 12 mounted on the railroad vehicle 100, and corresponds to FIG.

In FIGS. 14 and 15, elements that are the same as or correspond to the elements in FIGS. 1 and 2 are designated by the same reference numerals, and duplicate description thereof will be omitted.

The difference between the moving body monitoring system 51 according to the present embodiment and the moving body monitoring system 1 according to the first embodiment is that the moving body monitoring system 51 according to the present embodiment has a plurality of railways having the same movement route. Each of the vehicle 100 is provided with a plurality of information transmission devices 12, and in the present embodiment, the network 13 has a base station 13X provided at a station existing in the movement path of the railway vehicle 100. The point is that each railroad vehicle 100 is equipped with a station communication unit 30 that transmits and receives information by wireless communication between the railroad car 100 and the base station 13X when the railcar 100 is stopped at the station. The plurality of information transmission devices 12 constitute an information transmission system according to an embodiment of the present invention.

In the present embodiment, the station communication unit 30 is connected to the bus 29 and controlled by the CPU 21. The CPU 21 receives a signal from the monitoring device 11 indicating that the railway vehicle 100 is stopped at the station, controls the station communication unit 30, and when the railway vehicle 100 is stopped at the station, basic information. The basic information collected in the storage unit 27c is sent to the server 14 (may be another server) via the base station 13X and the network 13. Further, when the railway vehicle 100 is stopped at the station, the CPU 21 inquires whether or not the update area information for the own vehicle exists in the server 14, and if it exists, the CPU 21 is used for the update. The area information was requested to be sent to the own vehicle, and the area information in the area information storage unit 27a was sent from the server 14 via the network 13, the base station 13X, and the station communication unit 30 of the own vehicle. Update to the area information for update. In the present embodiment, the area information to be newly stored in the area information storage unit 27a of each information transmission device 12 may be created by an arbitrary method (such as the method described above).

In the present embodiment, the server 14 sequentially accumulates the basic information sent from the information transmission device 12 for each information transmission device 12. Then, the server 14 creates update area information for the information transmission device 12 based on the basic information sent from the information transmission device 12 for each information transmission device 12 at an appropriate frequency. It is made to stand by for the information transmitting device 12. Alternatively, the own information transmission device 12 is based on the basic information sent from at least one information transmission device 12 other than the own information transmission device 12 among the basic information sent from each information transmission device 12. The update area information for is created and made to stand by for the information transmission device 12. Alternatively, all the basic information sent from each information transmission device 12 is used, update area information is created based on all of them, and the update area information is made to stand by as common to each information transmission device 12. ..

The present embodiment also provides the same advantages as the first embodiment.

The base station 13A may also be provided at the station so that the communication unit 26 also functions as the station communication unit 30. Further, instead of sending the basic information collected by each information transmission device 12 to the server 14 via the network 13 or sending the update area information from the server 14 to each information transmission device 12 via the network 13. In the same manner as in the first embodiment, the update area information may be written as well as read by a personal computer or the like connected from each information transmission device 12 at the depot. Further, the movement routes of the railroad vehicles 100 do not necessarily have to be the same, and only some of the movement routes need be the same. In this case, when updating the area information of the own vehicle based on the basic information of the other vehicle, the area information may be updated using only the basic information of the portion where some of the movement routes match.

In the present invention, even if the same modification as that obtained by adding the modification to the first embodiment to obtain the fifth embodiment is applied to the second to fourth embodiments. Good.

[Sixth Embodiment]

The sixth embodiment of the present embodiment is a modification of the fifth embodiment as follows.

That is, in the present embodiment, in the fifth embodiment, the railroad vehicle 100 equipped with at least one information transmission device 12 among the plurality of information transmission devices 12 transmits the other at least one information. The railroad vehicle 100 on which the device 12 is mounted is subsequently moved along the same movement path, and the railroad vehicle 100 on which the at least one information transmission device 12 is mounted is located in the middle of the movement path. At that time, the information about the area ahead of the current position of the area information in the at least one information transmitting device 12 is updated based on the basic information collected in the other at least one information transmitting device 12. It is intended to be done.

For example, the own vehicle 100 (railroad vehicle 100 on the right side in FIG. 14) is ahead of the railroad vehicle 100 (railroad vehicle 100 on the right side in FIG. 14) that precedes a predetermined number of stations via the base station 13X and the network 13. Then, the server 14 receives the basic information, and based on this basic information, the server 14 creates the update area information regarding the area from the current position of the own vehicle 100 to several stations ahead, and the update area information is the network 13. And, it may be received by the own vehicle 100 via the base station 13X, and the area information of the own vehicle may be updated to the update area information.

According to the present embodiment, even if the non-communication area 201 changes due to the failure of a certain base station 13A or the addition of the base station 13A, at least one of the above changes occurs at a relatively early stage. Since it is reflected in the area information in the information transmission device 12, the accuracy of the area information in the at least one information transmission device 12 is improved, whereby in the railway vehicle 100 equipped with the at least one information transmission device 12. The information collected in time series can be delivered to the base station 13A by wireless communication in a state where the lack of information is further reduced.

[7th Embodiment]

FIG. 16 is a schematic configuration diagram showing a mobile monitoring system 61 according to a seventh embodiment of the present invention, and corresponds to FIG. FIG. 17 is a schematic configuration diagram showing a railroad vehicle 100 as a moving body in FIG. 16 and a monitoring device 11 and an information transmitting device 12 mounted on the railroad vehicle 100, and corresponds to FIG. In FIGS. 16 and 17, the same or corresponding elements as those in FIGS. 1 and 2 are designated by the same reference numerals.

The mobile monitoring system 61 according to the present embodiment transmits information collected in time series in the railway vehicle 100 by the monitoring device 11 mounted on the railway vehicle 100 to the base stations 13A, 13B, 13C on the ground side by wireless communication. The information transmission device 12 mounted on the railroad vehicle 100 and the information transmitted by the information transmission device 12 are transmitted to the mobile communication network including the base station 13A, the mobile communication network including the base station 13B, and the base station 13C. It includes a server 14 of a monitoring center that receives via a network 13 including a mobile communication network including. The information transmission device 12 in FIGS. 16 and 17 is a mobile information transmission device according to an embodiment of the present invention.

In the present embodiment, the information transmission device 12 is an input / output in which the monitor device 11 is connected to receive the information collected from the CPU 21, the ROM 22, the RAM 23, and the monitor device 11, or is connected to an external device (not shown) or the like. An interface 24, a timekeeping unit 25 having a timekeeping function (clock function) and outputting current time information, three communication units 26A, 26B, 26C, a storage device 27 such as a hard disk or SSD, and the current state of the railway vehicle 100. It includes a GPS receiving unit 28 as a position detecting unit for detecting a position, and a bus 29 connecting these to each other.

In the present embodiment, when the GPS receiving unit 28 cannot receive the GPS signal in a tunnel or the like, the distance from the starting point obtained from the monitoring device 11 is used as the current position of the railway vehicle 100.

The communication unit 26A performs wireless communication with the corresponding ground-side base station 13A by the first wireless communication method. The communication unit 26B performs wireless communication with the corresponding ground-side base station 13B by a second wireless communication method different from the first wireless communication method. The communication unit 26C performs wireless communication with the corresponding ground-side base station 13C by a third wireless communication method different from the first and second wireless communication methods. The antennas of the communication units 26A, 26B, and 26C may be separate or shared by one antenna.

In the present embodiment, the communication unit 26A functions as an index acquisition unit 26Aa for acquiring an index (current index of the communication unit 26A) indicating the current quality of wireless communication between the communication unit 26A and the base station 13A. have. The communication unit 26B has a function as an index acquisition unit 26Ba for acquiring an index (current index of the communication unit 26B) indicating the current quality of wireless communication between the communication unit 26B and the base station 13B. The communication unit 26C has a function as an index acquisition unit 26Ca for acquiring an index (current index of the communication unit 26C) indicating the current quality of wireless communication between the communication unit 26C and the base station 13C. These indicators and their determination are the same as the indicators and their determinations described in the first embodiment.

In the present embodiment, the information transmission device 12 is three types of predetermined areas 203A, 203B, 203C corresponding to the three communication units 26A, 26B, 26C, respectively, and each predetermined area is a predetermined area of the type. Stores area information indicating three types of predetermined areas 203A, 203B, 203C, including an area (communication-impossible area) in which wireless communication cannot be performed between the communication unit corresponding to the communication unit and the base station corresponding to the communication unit. It has an area information storage unit 27a to be used. In the present embodiment, the area information storage unit 27a is a part of the storage area of the storage device 27, but is not limited to this. For example, when the railroad vehicle 100 returns to the base, by connecting a personal computer or the like to the input / output interface 24, the area information can be newly stored in the area information storage unit 27a by the personal computer or the like, or the area information can be stored. Area information can be updated in the storage unit 27a.

In the present embodiment, the CPU 21 uses the information collected in time series in the railroad vehicle 100 in combination with the three communication units 26A, 26B, 26C or by switching according to the situation to the base station 13A, It also functions as a communication control unit that controls the three communication units 26A, 26B, and 26C so as to be transmitted to the 13B and 13C.

FIG. 18 shows a plurality of types of predetermined areas 203A, 203B, 203C corresponding to the plurality of communication units 26A, 26B, 26C indicated by the area information used in the information transmission device 12 of the mobile monitoring system 61 according to the present embodiment. An example and an example of their common area 203 are shown in the non-communication areas 201A, 201B, 201C and the communicable areas 202A, 202B, of the communication units 26A, 26B, 26C in a part of the movement route of the railroad vehicle 100 on the map. It is explanatory drawing which shows typically in relation to 202C.

In FIG. 18A, the non-communication area (area where communication between the communication unit 26A and the base station 13A cannot be performed) 201A of the communication unit 26A is shown by a black part in the movement path 200, and the communication unit is shown. The communicable area of 26A (the area where communication can be performed between the communication unit 26A and the base station 13A) 202A is shown by a white portion in the movement path 200.

In FIG. 18B, the non-communication area (the area where communication between the communication unit 26B and the base station 13B cannot be performed) 201B of the communication unit 26B is shown by the black part in the movement path 200, and the communication unit is shown. The communicable area of 26B (the area where communication can be performed between the communication unit 26B and the base station 13B) 202B is shown by a white portion in the movement path 200.

In FIG. 18C, the non-communication area (area where communication between the communication unit 26C and the base station 13C cannot be performed) 201C of the communication unit 26C is shown by a black part in the movement path 200, and the communication unit is shown. The communicable area of 26C (the area where communication can be performed between the communication unit 26C and the base station 13C) 202C is shown by a white portion in the movement path 200.

In FIG. 18D, the common areas common to the non-communication areas 201A, 201B, 201C of the communication units 26A, 26B, 26C (all of the communication units 26A, 26B, 26C and the base stations 13A, 13B corresponding to these, respectively, Area 201 where communication with 13C cannot be performed) 201 is indicated by a black part in the movement path 200, and is one of the areas outside the common area 201 in the movement route 200 (communication units 26A, 26B, 26C). The area (area) 202 in which communication between the above and the corresponding base station is possible is shown by a white portion in the movement path 200. The broken line extending in the left-right direction in FIG. 18 indicates the same position in the movement path 200.

In the present invention, instead of the area information indicating the three types of predetermined areas 203A, 203B, 203C, the area information indicating the common area 203 common to the three types of predetermined areas 203A, 203B, 203C is used, and the area information is used. May be stored in the area information storage unit 27a.

The area information indicating the predetermined areas 203A, 203B, 203C may be information that directly indicates the predetermined areas 203A, 203B, 203C, the area that is not the predetermined area 203A, the area that is not the predetermined area 203B, and the predetermined area. The information may directly indicate an area other than the area 203C. In the latter case, an area that is not a predetermined area indirectly indicates a predetermined area by other areas. Further, the area information indicating the common area 203 may be information that directly indicates the common area 203, or may be information that directly indicates an area that is not the common area 203. In the latter case, an area other than the common area 203 indirectly indicates the common area 203 by other areas.

In the present embodiment, the three types of predetermined areas 203A, 203B, 203C are made the same as the non-communication areas 201A, 201B, 201C, respectively, and the common area 203 common to the three types of predetermined areas 203A, 203B, 203C is It is the same as the common area 201 common to the non-communication areas 201A, 201B, and 201C. However, this is not always the case in the present invention.

The non-communication area 201A is a tunnel area, a mountainous area, an area far from the base station 13A, or the like. The non-communication area 201B is a tunnel area, a mountainous area, an area far from the base station 13B, and the like. The non-communication area 201C is a tunnel area, a mountainous area, an area far from the base station 13C, and the like. As shown in FIG. 3, the non-communication areas 201A, 201B, are caused by the fact that the number and position of base stations corresponding to the communication units and their communication sensitivities are different for each communication unit 26A, 26B, 26C. 201B are not exactly the same and are offset.

The non-communication areas 201A, 201B, 201C may be set as known areas such as a tunnel area and an area far from the corresponding base stations 13A, 13B, 13C, or the railway in step S117 in FIG. 20 described later. It may be determined based on the basic information acquired by the vehicle 100 itself or another vehicle of the same type or the like running in the past, or the basic obtained by actual measurement by the same method as step S117 in FIG. 20 described later. It may be determined based on the information, or the railway vehicle 100 is actually driven and the current position of the railway vehicle 100 is periodically transmitted from the communication units 26A, 26B, and 26C in association with the current time and the identification information of the communication unit. Then, it may be determined based on the position of the railroad vehicle 100 which is sent to the server 14 and is missing without reaching the server 14, or may be determined or updated by using one or two or more of these in combination.

However, in the present embodiment, as will be described later, the area information is generated or updated based on the basic information collected by the railroad vehicle 100 itself in step S117 in FIG. 20 to be described later. There is.

Further, in the present embodiment, the information transmission device 12 includes a basic information storage unit 27c that stores basic information for generating or updating the area information collected in step S17 in FIG. 20, which will be described later. There is. In the present embodiment, the basic information storage unit 27c is a part of the storage area of the storage device 27, but is not limited to this.

Further, in the present embodiment, the information transmission device 12 includes a collection information storage unit 27b that stores information collected in time series in the railway vehicle 100 by the monitoring device 11. In the present embodiment, the collected information storage unit 27b is a part of the storage area of the storage device 27, but is not limited to this.

FIG. 19 is a schematic flowchart showing an example of the operation of the information transmission device 12 shown in FIGS. 16 and 17.

When the information transmission device 12 starts operation, the CPU 21 of the information transmission device 12 reads the current time at that time from the time measuring unit 25 (step S101), and the current time is the start timing of the periodic processing (predetermined time (for example, 1 second). ) Every start timing) (step S102).

If it is determined in step S102 that the current time is not the start timing of the periodic processing, the process returns to step S101 and waits until the current time is the start timing of the periodic processing. On the other hand, if it is determined in step S102 that the current time is the start timing of the periodic processing, the process proceeds to step S103.

In step S103, the CPU 21 receives new information collected by the monitoring device 11 in time series from the monitoring device 11 and stores it in the collected information storage unit 27b. In the present embodiment, the time interval of the information collection timing by the monitoring device 11 and the time interval of the start timing of the periodic processing are the same (for example, 1 second). As a result, in the present embodiment, the information received from the monitor device 11 in step S103 is only the information most recently collected by the monitor device 11. However, the time intervals of the two do not necessarily have to match, and for example, the time interval of the start timing of the periodic processing may be double the time interval of the information collection timing by the monitoring device 11. In this case, the information received from the monitoring device 11 in step S103 is the information most recently collected by the monitoring device 11 and the information collected one time before.

The information collected by the monitoring device 11 in time series and stored in the collected information storage unit 27b in step S103 is held in the collected information storage unit 27b, and is personalized, for example, when the railway vehicle 100 returns to the base. By connecting a computer or the like to the input / output interface 24, the information can be read from the collected information storage unit 27b by a personal computer or the like.

Subsequently, after the periodic processing (step S104) is performed, the process returns to step S101.

The information collected by the monitoring device 11 in time series and stored in the collected information storage unit 27b in step S103 is retained in the collected information storage unit 27b without being deleted as it is even after steps S115 and S116 described later. For example, when the railroad vehicle 100 returns to the base, by connecting a personal computer or the like to the input / output interface 24, the information can be read from the collected information storage unit 27b by the personal computer or the like.

FIG. 20 is a schematic flowchart showing details of the periodic process (step S104) in FIG.

When the periodic process (step S104) is started, the CPU 21 first performs a determination process (step S111) based on the area information. FIG. 21 is a schematic flowchart showing details of the determination process (step S111) based on the area information in FIG. 20.

When the determination process based on the area information (step S111) is started, the CPU 21 first reads the current position of the railway vehicle 100 at that time from the GPS receiving unit 28 (step S121). At this time, if the GPS receiving unit 28 cannot receive the GPS signal, the CPU 21 reads the distance from the starting point from the monitoring device 11 as the current position of the railway vehicle 100.

Next, the CPU 21 reads the area information from the area information storage unit 27a (step S122).

Subsequently, the CPU 21 determines whether or not the current position read by step S121 is within the common area 203 common to the three types of predetermined areas 203A, 203B, and 203C indicated by the area information read in step S22 (. Step S123).

When it is determined in step S123 that the current position is within the common area 203, the CPU 21 sets the determination result flag FA to 1 (step S128), ends the determination process based on the area information (step S111), and proceeds with FIG. The process proceeds to step S112. On the other hand, if it is determined in step S123 that the current position is not within the common area 203 (that is, outside the common area 203), the determination result flag FA is set to 0 (step S127), and the determination process based on the area information (step S127). Step S111) is completed, and the process proceeds to step S112 in FIG.

In step S112, the CPU 21 determines whether or not the determination result flag FA is 1. If it is determined that the determination result flag FA is 1, the process proceeds to step S118. On the other hand, if it is determined that the determination result flag FA is not 1 (that is, it is 0), the process proceeds to step S113.

In step S113, the CPU 21 performs a determination process based on the communication quality index. FIG. 22 is a schematic flowchart showing details of the determination process (step S113) based on the communication quality index in FIG. 20.

When the determination process based on the communication quality index (step S113) is started, the CPU 21 first functions as the current index of the communication unit 26A at that time, the index acquisition unit 26Ba, from the communication unit 26A that functions as the index acquisition unit 26Aa. The current index of the communication unit 26B at that time is read from the communication unit 26B, and the current index of the communication unit 26C at that time is read from the communication unit 26C functioning as the index acquisition unit 26Ca (step S131). By determining whether or not it indicates that the quality is equal to or higher than the predetermined quality by the method as described above, it is determined whether or not at least one of these three indicators indicates that the quality is equal to or higher than the predetermined quality ( Step S132).

In step S132, it is shown that at least one of the current three indexes is of a predetermined quality or higher (that is, wireless communication can be performed by at least one of the communication units 26A, 26B, 26C). ), The CPU 21 sets the determination result flag FB to 1 (step S133), ends the determination process based on the communication quality index (step S113), and proceeds to step S114 of FIG. On the other hand, if it is determined in step S132 that all three indexes are not equal to or higher than the predetermined quality (that is, wireless communication by all the communication units 26A, 26B, 26C cannot be performed), the CPU 21 determines. The result flag FB is set to 0 (step S134), the determination process based on the communication quality index (step S113) is completed, and the process proceeds to step S114 in FIG.

In step S114, the CPU 21 determines whether or not the determination result flag FB is 1. If it is determined that the determination result flag FB is not 1 (that is, it is 0), the process proceeds to step S118. On the other hand, if it is determined that the determination result flag FB is 1, the process proceeds to step S115.

In step S118, the CPU 21 still sets the processing target of step S118 as the processing target of step S115 and subsequent steps among the information read in the immediately preceding step S103 (of the information collected by the monitoring device 11 in the railway vehicle 100 in time series). Attribute that should be sent later for new information that has not been given). In the present embodiment, the CPU 21 generates a plurality of packets from the information in order to transmit the information in packets later, and the plurality of packets are a predetermined storage area in the RAM 23 (referred to as an “attribute-granting information storage area”). The attribute is given by storing in. The packet stored in the attribute assignment information storage area in the RAM 23 waits to be transmitted in step S16, which will be described later. At this time, in the present embodiment, the information read in step S103 and stored in the collected information storage unit 27b is held in the collected information storage unit 27b without being deleted as it is. The format for assigning the attribute to the information is not limited to being stored as a packet in the attribute-assigned information storage area in the RAM 23, and is transmitted later with respect to the information stored in the collected information storage unit 27b, for example. The attribute may be given by associating attribute data indicating that it should be.

After step S118, the process proceeds to step S117.

In step S115, the CPU 21 performs a process of transmitting new information. In the present embodiment, in step S115, the CPU 21 also steps to the processing target of step S118 among the information read in the immediately preceding step S103 (out of the information collected by the monitoring device 11 in the railway vehicle 100 in time series). In order to transmit packets of new information that has not been processed in S115 or later), a plurality of packets are generated from the information, and these packets are sequentially spaced at predetermined time intervals to all of the communication units 26A, 26B, and 26C. The communication units 26A, 26B, and 26C are controlled so that packets are transmitted from each of them. At this time, the CPU 21 transmits packets from only one of the communication units 26A, 26B, 26C, which is determined in step S132 to indicate that the index is equal to or higher than the predetermined quality. , 26C may be controlled.

Next, the CPU 21 performs an attribute assignment information transmission process (step S116). FIG. 23 is a schematic flowchart showing details of the attribute assignment information transmission process (step S116) in FIG. 20.

When the attribute assignment information transmission process (step S116) is started, the CPU 21 first acquires the number of packets in the attribute assignment information storage area (step S141), and determines whether or not the number of packets is 0. (Step S142).

When it is determined in step S142 that the number of packets is 0 (that is, there are no packets in the attribute assignment information storage area), the attribute assignment information transmission process (step S116) is terminated, and step S117 in FIG. 20 is terminated. Move to. On the other hand, if it is determined in step S142 that the number of packets is not 0 (that is, the packets exist in the attribute assignment information storage area), the process proceeds to step S143.

In step S143, if the number of packets in the attribute-giving information storage area is equal to or greater than a predetermined number, the CPU 21 may use the predetermined number of packets in the attribute-giving information storage area as the number of packets in the attribute-giving information storage area. If is less than a predetermined number, all the packets in the attribute-assigned information storage area are communicated so that these packets are sequentially transmitted from all of the communication units 26A, 26B, and 26C at predetermined time intervals. Units 26A, 26B, and 26C are controlled. At this time, the CPU 21 transmits the packet from only at least one communication unit determined in step S132 among the communication units 26A, 26B, 26C to indicate that the index is equal to or higher than the predetermined quality. 26B and 26C may be controlled. By the start timing of the next periodic processing, the packet transmission in step S115 and the packet transmission in step S116 are completed.

Subsequently, the CPU 21 releases the attribute assigned to the transmitted packet by deleting the packet transmitted in step S143 from the attribute assignment information storage area (step S144). After that, the process of transmitting the attribute assignment information (step S116) is completed, and the process proceeds to step S117 in FIG.

In step S117, the CPU 21 performs a basic information collecting process for collecting basic information for generating or updating the area information. FIG. 24 is a schematic flowchart showing details of the basic information collection process (step S117) in FIG.

When the basic information collection process (step S117) is started, the CPU 21 first reads the current position of the railway vehicle 100 at that time in the same manner as in step S121 (step S151).

Next, the CPU 21 reads the current index of the communication unit 26A at that time, the current index of the communication unit 26B at that time, and the current index of the communication unit 26C at that time, as in step S131 (step S152). For each of the three indexes of the above, it is determined whether or not the index indicates that the quality is equal to or higher than the predetermined quality by the method as described above, and the determination results thereof are acquired (step S153).

Subsequently, the CPU 21 reads the current time at that time from the time measuring unit 25 (step S154).

After that, the CPU 21 associates the current position read in step S151, the current indexes read in step S152, the determination results acquired in step S153, and the current time read in step S154 with each other as the basic information. Write to the basic information storage unit 27c (step S155).

Note that, without performing step S151, the current position read in the immediately preceding step S21 may be used as the basic information instead of the current position read in step S151. Further, when steps S131 and S132 have already been performed in the same periodic processing (step S104), the current indexes obtained in steps S152 and S153 are used as basic information without performing steps S152 and S153. And, instead of each determination result, each current index and each determination result obtained in steps S131 and S132 may be used. Further, the current time read in the immediately preceding step S101 may be used as the basic information without performing step S154.

When step S155 is completed, the basic information collection process (step S117) is completed, whereby the periodic process (step S104) is completed, and the process returns to step S101 in FIG.

The basic information written in the basic information storage unit 27c in step S155 can be obtained by connecting a personal computer or the like to the input / output interface 24 when the railway vehicle 100 returns to the base. It can be read from the storage unit 27c. The area information can be generated or updated by using the basic information.

In the present embodiment, steps S111 to S114 first operate the operation mode related to transmission from the communication units 26A, 26B, 26C to the base stations 13A, 13B, 13C based on the current position and the area information. It is an operation mode determining means for periodically determining whether to select a mode or a second operation mode, and when the current position is within the common area 203, the first operation mode is determined. , Corresponds to the operation mode determining means for determining the second operation mode on the condition that the current position is outside the common area 203. Further, in the present embodiment, step S118 corresponds to the processing of the first operation mode, and steps S115 and S116 correspond to the processing of the second operation mode.

Then, in the present embodiment, when step S118 is determined to be the first operation mode by the operation mode determining means, the first of the information collected in time series in the railway vehicle 100 is still present. It corresponds to an attribute-imparting means for imparting an attribute that a new information that has not been processed in the operation mode or the second operation mode should be transmitted later. Further, in the present embodiment, when steps S115 and S116 (however, excluding step S144) are determined to be the second operation mode by the operation mode determining means, the railway vehicle 100 is in chronological order. Of the collected information, new information that has not yet been processed in the first operation mode or the second operation mode, and at least a part of the information to which the attribute is assigned are the bases. It corresponds to the communication control unit that controls the communication units 26A, 26B, and 26C so as to be transmitted to the station. Further, in the present embodiment, step S144 corresponds to the attribute canceling means for canceling the attribute given to at least a part of the information to which the attribute is given after the information is transmitted. ing.

According to the present embodiment, the information collected in the railroad vehicle 100 in time series is transmitted by the communication units 26A, 26B, 26C to the base stations 13A, 13B, 13C on the ground side by wireless communication. Therefore, according to the present embodiment, the information collected in time series in the railroad vehicle 100 is collected in a state of high real-time property, and the base stations 13A, 13B, 13C on the ground side (and by extension, the base stations 13A, 13B, 13C). It can be delivered to the server 14) of the monitoring center connected to the network. Therefore, the state of the railroad vehicle 100 can be quickly grasped at the monitoring center, and measures can be taken promptly according to the state.

Then, in the present embodiment, steps S111 to S114 periodically determine which of the first operation mode and the second operation mode should be set based on the current position and the area information. When the current position is within the common area 203, the first operation mode is determined, and the second operation mode is determined on condition that the current position is outside the common area 203. When the operation mode of 1 is determined, among the information collected in time series in the railway vehicle 100, new information that has not yet been processed for the first operation mode or the second operation mode. On the other hand, when the attribute that the information should be transmitted later is given (step S118) and the second operation mode is determined, the information collected in the railway vehicle 100 in time series is still the first. At least a part of the new information that has not been processed in the operation mode 1 or the second operation mode and the information to which the attribute is given is transmitted to the base stations 13A, 13B, 13C. (Steps S115, S116).

Therefore, according to the present embodiment, basically, when the current position of the railroad vehicle 100 is within the common area 203, the attribute is given to the new information at that time, and the current position of the railroad vehicle 100 is the said. When the area is outside the common area 203, the new information at that time and the information to which the attribute is added are transmitted, so that the wireless communication cannot actually be performed, but the transmission is properly performed. Many of the situations in which the railway vehicle 100 is regarded as completed and not even resent are prevented, so that the information collected in time series in the railway vehicle 100 can be collected in the base stations 13A and 13B in a state where the lack of information is reduced. , 13C can be delivered by wireless communication. Not only that, according to the present embodiment, basically, when the current position of the railroad vehicle 100 is outside the common area 203, at least new information at that time is transmitted (step S115), so that it is relatively relative. High-value new information will be transmitted in preference to old information with relatively low value, and the information collected in time series in the railroad vehicle 100 will be transmitted in a more real-time state at base stations 13A and 13B. , 13C can be delivered by wireless communication.

Further, according to the present embodiment, when the first operation mode is determined (YES in step S112 and NO in step S114), information is not transmitted, so that the communication unit In many cases, it is possible to avoid unnecessary transmission operations by the 26A, 26B, and 26C. However, in the present invention, the information may be transmitted even when the first operation mode is determined.

Further, according to the present embodiment, since the basic information for generating or updating the area information is collected in step S117, the basic information can be easily collected, and the railway actually moving. Since the basic information can be collected by the vehicle 100, the accuracy of the area information can be improved by generating or updating the area information based on the basic information.

Furthermore, according to the present embodiment, the information collected in time series in the railway vehicle 100 is readable and stored in the collected information storage unit 27b regardless of whether or not the information is transmitted. Since the information is retained, the information collected in time series is stored in the collected information storage unit 27b as a whole. Therefore, for example, the information is read out at the base of the railway vehicle 100 and the failure status of the railway vehicle 100. It is also possible to analyze in detail. However, among the information recorded in the collected information storage unit 27b, the information transmitted in steps S15 and S16 may be deleted from the collected information storage unit 27b. In this case, the storage capacity of the collected information storage unit 27b can be suppressed.

Then, in the present embodiment, the area information is generated or updated based on the basic information collected by the railway vehicle 100 itself in step S117 in FIG. 20 described above.

That is, in the present embodiment, for example, when the area information storage unit 27a newly stores the area information, the railway vehicle 100 is made to test run the movement route one or more times, and at that time, in step S117. The basic information collected and stored in the basic information storage unit 27c is read out by a personal computer or the like connected to the input / output interface 24, the area information is created based on the basic information, and the created area information is used as an area by the personal computer. It is stored in the information storage unit 27a. At this time, the area information based on the basic information may be automatically created according to a program such as a personal computer, or the basic information may be presented to the creator and created by intervening the judgment of the creator. It may be done.

Alternatively, in the present embodiment, the area information newly newly stored in the area information storage unit 27a is assumed to be created by an arbitrary method (such as the method described above), and is stepped during the actual operation of the railroad vehicle 100. When the railcar 100 returns to the base or the like, the basic information collected in S117 and stored in the basic information storage unit 27c is read out by a personal computer or the like connected to the input / output interface 24, and the basic information obtained during each run is read. Are sequentially accumulated, and based on the accumulated basic information, the area information is created as update area information, and the area information in the area information storage unit 27a is updated to the update area information. May be good. In this case as well, the area information for update may be created automatically, or the creator may intervene to create it. By using the basic information obtained during a large number of trips, statistical processing and the like can be performed, and highly accurate update area information can be created. In addition, when the radio wave sensitivity (and thus the non-communication area 201) is affected by the traveling time zone, season, weather (weather information can be obtained from the Japan Meteorological Agency, etc. via a network, etc. based on the date and time), A plurality of types of area information using these as parameters may be created, and the area information according to the actual traveling time zone, season, etc. may be read in step S121.

According to the present embodiment, the basic information for generating or updating the area information is collected in step S117, and the area information is generated or updated based on the basic information collected in step S117. Therefore, the basic information can be easily collected, and the basic information can be collected by the actually moving railroad vehicle 100, so that the area information can be generated or updated based on the basic information. By doing so, the accuracy of the area information can be improved, whereby the information collected in time series in the railcar 100 is delivered to the base station 13A by wireless communication in a state where the lack of information is further reduced. be able to.

[Eighth Embodiment]

FIG. 25 shows the current position and future position of the railroad vehicle 100 in relation to the common area 203 indicated by the area information used in the information transmission device 12 of the mobile monitoring system 61 according to the seventh embodiment. It is a figure which shows an example schematically.

In FIG. 25, the railroad vehicle 100 at the current position is shown by a solid line, and the railroad car 100 at a future position is shown by a broken line. X in FIG. 25 is the traveling direction of the railway vehicle 100. FIG. 25 shows not only the common area 203 but also the non-communication areas 201A, 201B, 201C and the communicable areas 202A or 202B or 202C. As described above, in the seventh embodiment, the predetermined areas 203A, 203B, 203C are the same as the non-communication areas 201A, 201B, 201C, respectively, so that the common area 203 is the non-communication areas 201A, 201B. , 201C is the same as the common area 201. In FIG. 25, the railroad vehicle 100 is currently located in the communicable area 202A or 202B or 202C in front of the common area 201, but is located near the common area 201. In the near future, which is indicated by the broken line, the railroad vehicle 100 is in the common area 201 (that is, all of the non-communication areas 201A, 201B, and 201C).

In such a case, in the seventh embodiment, even if NO is determined in step S112 and YES is determined in step S114 and the second operation mode is determined, the actual steps S115 and S116 are actually performed. Since the railroad vehicle 100 is in all the non-communication areas 201A, 201B, 201C at the time of transmission, all of the communication units 26A, 26B, 26C are wirelessly connected to the corresponding base stations 13A, 13B, 13C. Communication becomes impossible, and the information to be delivered is missing.

On the other hand, the information transmission device of the mobile monitoring system according to the eighth embodiment of the present invention can reduce or prevent such information loss.

The eighth embodiment of the present invention differs from the seventh embodiment in that, in the seventh embodiment, the processing content of the determination process (step S111) based on the area information in FIG. 20 is FIG. 21. In contrast to the processing content shown in FIG. 20, in the present embodiment, only the processing content of the determination process (step S111) based on the area information in FIG. 20 is the processing content shown in FIG. 26.

FIG. 26 is a schematic flowchart showing the details of the determination process based on the area information in FIG. 20 of the information transmission device of the mobile monitoring system according to the eighth embodiment of the present invention, and corresponds to FIG. 21.

The only difference between the processing content shown in FIG. 26 and the processing content shown in FIG. 21 is that steps S124 to S126 are added to FIG. 21 in FIG.

In FIG. 26, if NO in step S123, the CPU 21 reads the current speed of the railway vehicle 100 from the monitoring device 11 (or directly from the vehicle speed sensor) (step S124), and a predetermined time elapses from the present based on the speed. The position (future position) of the future railroad vehicle 100 after (for example, 10 seconds) is predicted (step S125), and it is determined whether or not the predicted future position is within the common area 203 (step S126). If the determination result is YES, the process proceeds to step S128, and if the determination result is NO, the process proceeds to step S127.

Therefore, in the present embodiment, even if the railroad vehicle 100 is currently located in the communicable area 202A or 202B or 202C, the predicted position after the lapse of a predetermined time is the common area 203 (all of the communicable areas 201A, 201B and 201C). ), It will be treated in the same way as if it is currently in the common area 203 (all of the non-communication areas 201A, 201B, 201C). Therefore, according to the present embodiment, in the situation shown in FIG. 25, YES is set in step S126 in FIG. 26, so that the lack of delivered information is reduced or prevented.

In addition to the above points, the present embodiment also has the same advantages as the seventh embodiment.

[9th Embodiment]

FIG. 27 shows an example of the current position and future position of the railway vehicle 100 in relation to the common area 203 indicated by the area information used in the information transmission device 12 of the railway vehicle monitoring system according to the ninth embodiment of the present invention. It is a diagram schematically shown and corresponds to FIG. 25.

Similar to the eighth embodiment, the present embodiment can also reduce or prevent the loss of information that occurs in the seventh embodiment.

The difference between the present embodiment and the seventh embodiment is that in the seventh embodiment, the predetermined areas 203A, 203B, 203C are the same as the non-communication areas 201A, 201B, 201C, respectively. On the other hand, in the present embodiment, (i) the predetermined area 203A is located in front of the traveling direction X of the railroad vehicle 100 in the non-communication area 201A in addition to the non-communication area 201A, and wireless communication of the communication unit 26A is performed. Areas that can be carried out (“additional areas”), including areas having a predetermined distance in the traveling direction X (“additional areas”), (ii) predetermined areas 203B are in addition to the non-communication area 201B. An area (“additional area”) located in front of the traveling direction X of the railroad vehicle 100 in the non-communication area 201B and capable of performing wireless communication of the communication unit 26B, and having a predetermined distance in the traveling direction X. Including (“additional area”), (iii) the predetermined area 203C is located in front of the traveling direction X of the railroad vehicle 100 in the non-communication area 201C in addition to the non-communication area 201C, and wireless communication of the communication unit 26C is performed. It is only a point that can be performed (“additional area”) and includes an area (“additional area”) having a predetermined distance in the traveling direction X. As a result, as shown in FIG. 27, in the present embodiment, the common area 203 is set in any of the predetermined areas 203A, 203B, 203C in the area where all of 201A, 201B, and 201C overlap (common area 201). It is the one with the added additional area added.

In the present embodiment, unlike the eighth embodiment, the processing content of the determination process based on the area information in FIG. 20 is the same as the processing content shown in FIG. 21 as in the seventh embodiment. There is.

According to the present embodiment, in the present embodiment, even if the railroad vehicle 100 is currently located in the communicable area 202A or 202B or 202C, it is located in the common area 203 when as shown in FIG. 27. Therefore, it is treated as if it is currently in all of the non-communication areas 201A, 201B, and 201C. Therefore, according to the present embodiment, the lack of information that occurs in the second embodiment is reduced or prevented as in the third embodiment.

In addition to the above points, the present embodiment also has the same advantages as the seventh embodiment.

[10th Embodiment]

FIG. 28 is a schematic flowchart showing details of periodic processing (step S104) in FIG. 19 of the information transmission device of the mobile monitoring system according to the tenth embodiment of the present invention, and corresponds to FIG. 20.

The difference between the present embodiment and the seventh embodiment is that in the seventh embodiment, the processing content of the periodic processing (step S104) in FIG. 19 is the processing content shown in FIG. On the other hand, in the present embodiment, only the processing content of the periodic processing (step S104) in FIG. 19 is the processing content shown in FIG. 28.

The difference between the processing content shown in FIG. 28 and the processing content shown in FIG. 20 is that in FIG. 28, steps S113 and S114 are removed with respect to FIG. 20, and if NO in step S112, the process proceeds to step S115. Only.

In the present embodiment, when the packet is transmitted in step S113, the packet may be transmitted from all of the communication units 26A, 26B, and 26C, respectively, or the packet is currently transmitted in step S111 of the communication units 26A, 26B, and 26C. Packets may be transmitted only from the communication unit whose position is determined to be outside the common area 203. Further, in the present embodiment, when the packet is transmitted in step S116, the packet may be transmitted from all of the communication units 26A, 26B, and 26C, respectively, or the packet is currently transmitted in step S111 of the communication units 26A, 26B, and 26C. Packets may be transmitted only from the communication unit whose position is determined to be outside the common area 203.

The present embodiment also provides almost the same advantages as the seventh embodiment.

In the present invention, the seventh embodiment is modified to obtain the eighth embodiment, or the seventh embodiment is modified to obtain the ninth embodiment. A modification similar to that obtained in the tenth embodiment may be applied to the tenth embodiment.

[11th Embodiment]

FIG. 29 is a schematic configuration diagram showing a mobile monitoring system 71 according to the eleventh embodiment of the present invention, and corresponds to FIG. FIG. 30 is a schematic configuration diagram showing a railroad vehicle 100 as a moving body in FIG. 29, a monitor device 11 and an information transmission device 12 mounted on the railroad vehicle 100, and corresponds to FIG.

In FIGS. 29 and 30, the same or corresponding elements as those in FIGS. 16 and 17 are designated by the same reference numerals, and duplicate description thereof will be omitted.

The difference between the moving body monitoring system 71 according to the present embodiment and the moving body monitoring system 61 according to the seventh embodiment is that the moving body monitoring system 71 according to the present embodiment has a plurality of railways having the same movement route. Each of the vehicle 100 is provided with a plurality of information transmission devices 12, and in the present embodiment, the network 13 has a base station 13X provided at a station existing in the movement path of the railway vehicle 100. The point is that each railroad vehicle 100 is equipped with a station communication unit 30 that transmits and receives information by wireless communication between the railroad car 100 and the base station 13X when the railcar 100 is stopped at the station. The plurality of information transmission devices 12 constitute an information transmission system according to an embodiment of the present invention.

In the present embodiment, the station communication unit 30 is connected to the bus 29 and controlled by the CPU 21. The CPU 21 receives a signal from the monitoring device 11 indicating that the railway vehicle 100 is stopped at the station, controls the station communication unit 30, and when the railway vehicle 100 is stopped at the station, basic information. The basic information collected in the storage unit 27c is sent to the server 14 (may be another server) via the base station 13X and the network 13. Further, when the railway vehicle 100 is stopped at the station, the CPU 21 inquires whether or not the update area information for the own vehicle exists in the server 14, and if it exists, the CPU 21 is used for the update. Requested to send the area information to the own vehicle, and updated the area information in the area information storage unit 27a from the server 14 via the network 13, the base station 13X, and the communication unit for the station of the own vehicle. Update to area information for. In the present embodiment, the area information to be newly stored in the area information storage unit 27a of each information transmission device 12 may be created by an arbitrary method (such as the method described above).

In the present embodiment, the server 14 sequentially accumulates the basic information sent from the information transmission device 12 for each information transmission device 12. Then, the server 14 creates update area information for the information transmission device 12 based on the basic information sent from the information transmission device 12 for each information transmission device 12 at an appropriate frequency. It is made to stand by for the information transmitting device 12. Alternatively, the own information transmission device 12 is based on the basic information sent from at least one information transmission device 12 other than the own information transmission device 12 among the basic information sent from each information transmission device 12. The update area information for is created and made to stand by for the information transmission device 12. Alternatively, all the basic information sent from each information transmission device 12 is used, update area information is created based on all of them, and the update area information is made to stand by as common to each information transmission device 12. ..

The present embodiment also provides the same advantages as the seventh embodiment.

The base stations 13A, 13B, and 13C may also be provided at the station so that the communication unit 26 also functions as the station communication unit 30. Further, instead of sending the basic information collected by each information transmission device 12 to the server 14 via the network 13 or sending the update area information from the server 14 to each information transmission device 12 via the network 13. In the same manner as in the seventh embodiment, the update area information may be written as well as read by a personal computer or the like connected from each information transmission device 12 at the depot. Further, the movement routes of the railroad vehicles 100 do not necessarily have to be the same, and only some of the movement routes need be the same. In this case, when updating the area information of the own vehicle based on the basic information of the other vehicle, the area information may be updated using only the basic information of the portion where some of the movement routes match.

In the present invention, even if the same modification as that obtained by modifying the seventh embodiment to obtain the eleventh embodiment is applied to the eighth to tenth embodiments. Good.

[Twelfth Embodiment]

The twelfth embodiment of the present embodiment is a modification of the eleventh embodiment as follows.

That is, in the present embodiment, in the eleventh embodiment, the railroad vehicle 100 equipped with at least one information transmission device 12 among the plurality of information transmission devices 12 transmits the other at least one information. The railroad vehicle 100 on which the device 12 is mounted is subsequently moved along the same movement path, and the railroad vehicle 100 on which the at least one information transmission device 12 is mounted is located in the middle of the movement path. At that time, the information about the area ahead of the current position of the area information in the at least one information transmitting device 12 is updated based on the basic information collected in the other at least one information transmitting device 12. It is intended to be done.

For example, the own vehicle 100 (railroad vehicle 100 on the right side in FIG. 14) precedes a distance corresponding to a predetermined number of stations from the railroad vehicle 100 (railroad vehicle 100 on the right side in FIG. 29) via the base station 13X and the network 13. Then, the server 14 receives the basic information, and based on this basic information, the server 14 creates the update area information regarding the area from the current position of the own vehicle 100 to several stations ahead, and the update area information is the network 13. And, it may be received by the own vehicle 100 via the base station 13X, and the area information of the own vehicle may be updated to the update area information.

According to the present embodiment, even if the non-communication area 201 changes due to the failure of a certain base station 13A due to a failure or the addition of the base station 13A, at least one of the above changes occurs at a relatively early stage. Since it is reflected in the area information in the information transmission device 12, the accuracy of the area information in the at least one information transmission device 12 is improved, whereby in the railroad vehicle 100 on which the at least one information transmission device 12 is mounted. The information collected in time series can be delivered to the base stations 13A, 13B, and 13C by wireless communication in a state where the lack of information is further reduced.

Although each embodiment of the present invention has been described above, the present invention is not limited to these embodiments.

For example, in the first to fourth embodiments, the predetermined area 203 may be extended by a predetermined distance from the non-communication area 201 to the rear side of the traveling direction X of the railway vehicle 100.

Further, for example, in the seventh to twelfth embodiments, the predetermined areas 203A, 203B, 203C extend from the non-communication areas 201A, 201B, 201C to the rear side of the traveling direction X of the railway vehicle 100 by a predetermined distance. You may.

Further, for example, in the seventh to twelfth embodiments, the information transmission device 12 has three communication units 26A, 26B, and 26C, but in the present invention, the communication unit included in the information transmission device The number may be two or four or more.

Furthermore, although each of the above-described embodiments is an example in which the moving body is the railroad vehicle 100, the moving body is not limited to the railroad vehicle 100 in the present invention.

1,51,61,62 Information transmission system 11 Monitor device 12 Information transmission device 13A, 13B, 13C Base station 26, 26A, 26B, 26C Communication unit 26a, 26Aa, 26Ba, 26Ca Index acquisition unit 27a Area information storage unit 27b Collection Information storage unit 27c Basic information storage unit 100 Railway vehicle

Claims (17)

It is an information transmission device mounted on a mobile body.
A communication unit that performs wireless communication with a base station on the ground side,
A position detection unit that detects the current position of the moving body, and
An area information storage unit that stores area information indicating a predetermined area including an area where wireless communication cannot be performed, and an area information storage unit.
Basic information collecting means for collecting basic information for generating or updating the area information, and
With
The predetermined area is an area located in front of the moving body in the area where wireless communication cannot be performed and capable of performing wireless communication, and has a predetermined distance in the traveling direction. , Including
The communication unit is controlled so that the information collected in time series in the mobile body is transmitted to the base station based on the current position and the area information.
The area information is generated or updated based on the basic information collected by the basic information collecting means.
An information transmission device for a mobile body, which is characterized in that. The basic information collecting means correlates the index indicating the current quality of the wireless communication or the determination result of whether or not the index indicates the quality equal to or higher than a predetermined quality with the current position of the mobile body, and the basic information. The mobile information transmitting device according to claim 1, wherein at least a part of the mobile body is collected on a regular basis. The mobile information transmitter according to claim 2, wherein the index is based on at least one of RSSI, SNR, noise intensity and CQI. It is an information transmission device mounted on a mobile body.
A plurality of communication units having different wireless communication methods, each of which performs wireless communication with a corresponding base station on the ground side, and a plurality of communication units.
A position detection unit that detects the current position of the moving body, and
A plurality of types of predetermined areas corresponding to the plurality of communication units, and each type of predetermined area is between the communication unit corresponding to the predetermined area of the type and the base station corresponding to the communication unit. An area information storage unit that stores area information indicating a plurality of types of predetermined areas including areas where wireless communication cannot be performed, or stores area information indicating a common area common to the plurality of types of predetermined areas. ,
Basic information collecting means for collecting basic information for generating or updating the area information, and
With
Each type of predetermined area is in the traveling direction of the mobile body in the area in which wireless communication cannot be performed between the communication unit corresponding to the predetermined area of the type and the base station corresponding to the communication unit. An area located on the front side and capable of performing the wireless communication, including an area having a predetermined distance in the traveling direction.
The plurality of communication units are controlled so that the information collected in time series in the mobile body is transmitted to the base station based on the current position and the area information.
The area information is generated or updated based on the basic information collected by the basic information collecting means.
An information transmission device for a mobile body, which is characterized in that. The basic information collecting means associates an index indicating the current quality of the wireless communication of each communication unit or a determination result of whether or not the index indicates a quality equal to or higher than a predetermined quality with the current position of the moving body. The mobile information transmitting device according to claim 4, wherein the basic information is regularly collected as at least a part of the basic information. The mobile information transmitter according to claim 5, wherein the index is based on at least one of RSSI, SNR, and CQI. The information transmitting device for a moving body according to any one of claims 1 to 6, wherein the moving body is a railroad vehicle. An information transmission system for a mobile body having a plurality of information transmission devices mounted on a plurality of mobile bodies having at least a part of the same movement path.
Each of the information transmission devices includes a communication unit that performs wireless communication with a base station on the ground side, a position detection unit that detects the current position of the mobile body on which the information transmission device is mounted, and the information transmission. An area information storage unit that stores area information indicating a predetermined area including an area in which the wireless communication cannot be performed in the device, and a basic information collecting means for collecting basic information for generating or updating the area information. Prepare,
The predetermined area is an area located in front of the moving body in the area where wireless communication cannot be performed and capable of performing wireless communication, and has a predetermined distance in the traveling direction. , Including
In each of the information transmitting devices, in the moving body on which the information transmitting device is mounted, based on the current position of the moving body on which the information transmitting device is mounted and the area information in the information transmitting device. The communication unit in the information transmitting device is controlled so that the information collected in time series is transmitted to the base station.
The area information in at least one of the plurality of information transmitting devices is the basic information collected by the basic information collecting means in the information transmitting device and at least the other at least of the plurality of information transmitting devices. Based on the basic information collected by the basic information collecting means in one information transmitting device, or collected by the basic information collecting means in at least one other information transmitting device among the plurality of information transmitting devices. Generated or updated based on basic information,
An information transmission system for mobile objects. An information transmission system for a mobile body having a plurality of information transmission devices mounted on each of the plurality of mobile bodies.
Each of the information transmission devices includes a communication unit that performs wireless communication with a base station on the ground side, a position detection unit that detects the current position of the mobile body on which the information transmission device is mounted, and the information transmission. An area information storage unit that stores area information indicating a predetermined area including an area in which the wireless communication cannot be performed in the device, and a basic information collecting means for collecting basic information for generating or updating the area information. Prepare,
The predetermined area is an area located in front of the moving body in the area where wireless communication cannot be performed and capable of performing wireless communication, and has a predetermined distance in the traveling direction. , Including
In each of the information transmitting devices, in the moving body on which the information transmitting device is mounted, based on the current position of the moving body on which the information transmitting device is mounted and the area information in the information transmitting device. The communication unit in the information transmitting device is controlled so that the information collected in time series is transmitted to the base station.
The mobile body on which at least one of the plurality of information transmission devices is mounted is the mobile body on which at least one other information transmission device of the plurality of information transmission devices is mounted. On the other hand, it follows the same movement route and moves
When the moving body on which the at least one information transmitting device is mounted is located in the middle of the moving path, the area ahead of the current position of the area information in the at least one information transmitting device. Is updated based on the basic information collected by the basic information collecting means in the at least one other information transmitting device.
An information transmission system for mobile objects. Does the basic information collecting means in at least one information transmitting device among the plurality of information transmitting devices indicate an index indicating the current quality of the wireless communication in the information transmitting device or whether the index indicates a quality equal to or higher than a predetermined quality? The determination result of whether or not the information is transmitted and the current position of the moving body on which the information transmitting device is mounted are associated with each other and periodically collected as at least a part of the basic information in the information transmitting device. The mobile information transmission system according to claim 8 or 9. The mobile information transmission system according to claim 10, wherein the index is based on at least one of RSSI, SNR, noise intensity and CQI. An information transmission system for a mobile body having a plurality of information transmission devices mounted on a plurality of mobile bodies having at least a part of the same movement path.
Each of the information transmission devices is equipped with a plurality of communication units having different wireless communication methods, each of which performs wireless communication with a corresponding base station on the ground side, and the information transmission device. A position detection unit that detects the current position of the moving body and a plurality of types of predetermined areas corresponding to the plurality of communication units in the information transmission device, and each type of predetermined area is the type. Stores area information indicating a plurality of types of predetermined areas including an area in which wireless communication between the communication unit corresponding to the predetermined area and the base station corresponding to the communication unit cannot be performed, or the above-mentioned It is provided with an area information storage unit that stores area information indicating a common area common to a plurality of types of predetermined areas, and a basic information collecting means for collecting basic information for generating or updating the area information.
Each type of predetermined area is in the traveling direction of the mobile body in the area in which wireless communication cannot be performed between the communication unit corresponding to the predetermined area of the type and the base station corresponding to the communication unit. An area located on the front side and capable of performing the wireless communication, including an area having a predetermined distance in the traveling direction.
In each of the information transmitting devices, in the moving body on which the information transmitting device is mounted, based on the current position of the moving body on which the information transmitting device is mounted and the area information in the information transmitting device. The plurality of communication units in the information transmitting device are controlled so that the information collected in time series is transmitted to the base station.
The area information in at least one of the plurality of information transmitting devices is the basic information collected by the basic information collecting means in the information transmitting device and at least the other at least of the plurality of information transmitting devices. Based on the basic information collected by the basic information collecting means in one information transmitting device, or collected by the basic information collecting means in at least one other information transmitting device among the plurality of information transmitting devices. Generated or updated based on basic information,
An information transmission system for mobile objects. An information transmission system for a mobile body having a plurality of information transmission devices mounted on each of the plurality of mobile bodies.
Each of the information transmission devices is equipped with a plurality of communication units having different wireless communication methods, each of which performs wireless communication with a corresponding base station on the ground side, and the information transmission device. A position detection unit that detects the current position of the moving body and a plurality of types of predetermined areas corresponding to the plurality of communication units in the information transmission device, and each type of predetermined area is the type. Stores area information indicating a plurality of types of predetermined areas including an area in which wireless communication between the communication unit corresponding to the predetermined area and the base station corresponding to the communication unit cannot be performed, or the above-mentioned It is provided with an area information storage unit that stores area information indicating a common area common to a plurality of types of predetermined areas, and a basic information collecting means for collecting basic information for generating or updating the area information.
Each type of predetermined area is in the traveling direction of the mobile body in the area in which wireless communication cannot be performed between the communication unit corresponding to the predetermined area of the type and the base station corresponding to the communication unit. An area located on the front side and capable of performing the wireless communication, including an area having a predetermined distance in the traveling direction.
In each of the information transmitting devices, in the moving body on which the information transmitting device is mounted, based on the current position of the moving body on which the information transmitting device is mounted and the area information in the information transmitting device. The plurality of communication units in the information transmitting device are controlled so that the information collected in time series is transmitted to the base station.
The mobile body on which at least one of the plurality of information transmission devices is mounted is the mobile body on which at least one other information transmission device of the plurality of information transmission devices is mounted. On the other hand, the same movement route is followed and moved,
When the moving body on which the at least one information transmitting device is mounted is located in the middle of the moving path, the area ahead of the current position of the area information in the at least one information transmitting device. Is updated based on the basic information collected by the basic information collecting means in the at least one other information transmitting device.
An information transmission system for mobile objects. The basic information collecting means in at least one information transmitting device among the plurality of information transmitting devices is an index indicating the current quality of the wireless communication of each communication unit in the information transmitting device, or the index is equal to or higher than a predetermined quality. The result of determining whether or not the information is transmitted and the current position of the moving body on which the information transmitting device is mounted are associated with each other and periodically as at least a part of the basic information in the information transmitting device. The mobile information transmission system according to claim 12 or 13, characterized in that the information is collected in. The mobile information transmission system according to claim 14, wherein the index is based on at least one of RSSI, SNR, noise intensity and CQI. The information transmission system for a mobile body according to any one of claims 8 to 15, wherein the moving body is a railroad vehicle. The mobile information transmitting device according to any one of claims 1 to 7 or the mobile information transmitting system according to any one of claims 8 to 16.
A server of a monitoring center that receives the information transmitted by the information transmitting device via a network including the base station, and a server of the monitoring center.
A mobile monitoring system characterized by being equipped with.

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