JP2650536B2 - Communication device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a line-of-sight communication system mounted on a mobile vehicle or the like and used to transmit a large amount of data by communication, without installing relay equipment or the like. The present invention relates to a communication apparatus which manages a communication network that enables communication between mobiles out of line of sight by transmitting and receiving data by connecting the network to a network.

[0002]

2. Description of the Related Art In order to perform high-speed and large-capacity data communication in mobile communication, a broadband communication device having high directivity within a line of sight is required. FIG. 4 shows an embodiment of a conventional communication device. In the figure, 1 is a transmission radio wave, 2 is a reception radio wave, 5 is an instruction processing unit, 6 is transmission data, 7 is a transmission unit, 8 is a transmission signal, 9 is a directional antenna unit, 19 is a reception signal, and 20 is a reception unit. , 21 are received data, 63 is an instruction input, such as voice and data. Reference numeral 64 denotes obtained data such as voice and data.

Next, the operation will be described. When there is an instruction input 63 to the communication device, the instruction processing unit 5 generates transmission data 6 to the transmission unit 7, and the transmission unit 7 transmits the directional antenna 9.
, A transmission signal 8 is generated. At this time, the directional antenna unit 9 transmits the transmission radio wave 1 to another moving body. Also,
When the directional antenna unit 9 receives a received radio wave 2 which is a radio wave from another moving object, the directional antenna unit 9 outputs a reception signal 19 to the reception unit 20, and the reception unit 20 outputs reception data 21 to the instruction processing unit 5. The instruction processing unit 5 outputs the obtained data 64 when the received data 21 is input.

[0004]

In the communication apparatuses configured as described above, since the communication apparatuses are directional communication, they must be in line of sight in order to perform communication between mobile units. However, a mobile body such as a vehicle is usually used in an environment such as an artificial object, vegetation, and terrain.

The present invention has been made to solve such a problem, and seeks other communicable mobile units, and a communication device mounted on each mobile unit becomes a relay station for transmitting communication. And a communication device capable of forming a communication network up to the communication partner.

[0006]

A communication apparatus according to the present invention includes an antenna search control unit for searching for any other communicable mobile unit, a directional antenna for transmitting and receiving high-speed large-capacity communication data, and a transmitting and receiving unit. Unit, an omni-directional antenna for receiving communication data from a transmission partner, its receiving unit, a self-locating unit for knowing its own geographical position, and a network connected by the received data. A data mixing unit that combines the position data of the plurality of destinations, the self-position data, and the map data, and mobile units connected under a network based on geographic communication failure information obtained from the mixing data by a map. A communication coverage calculation unit that calculates the communication coverage of each mobile unit, and an optimal connection between each mobile unit existing between the communication coverage units of each mobile unit and a desired communication partner. A communication path selection operation unit for obtaining the Michikai, mixing data, communications covering region, a graphic display unit for displaying a communication path, further transmission operation, specification of a communication partner, the control transmits the input communication route And an instruction processing unit for performing transmission / reception control when the mobile station becomes a relay station under another communication network.

[0007]

The communication apparatus according to the present invention is conventionally used for performing high-speed and large-capacity communication with a mobile unit by connecting the mobile units within line of sight with each other via a communication network configured with an optimum communication path. It is possible to communicate with a desired communication partner outside the line of sight, which would otherwise be impossible.

[0008]

[Embodiment 1] FIG. 1 is a diagram showing one embodiment of the present invention. In the figure, 1 is a transmission radio wave, 2 is a reception radio wave, 3 is a communication network reception radio wave, 4 is an input instruction command, 5 is an instruction processing unit, 6 is a transmission data, 7 is a transmission unit, 8 is a transmission signal, and 9 is a directivity. Omnidirectional antenna section, 10 is an omnidirectional antenna section, 11 is a communication network reception signal, 12 is an omnidirectional antenna reception section, and 13 is other mobile position data obtained from the communication network reception signal. Are all included. Numeral 14 denotes network reception data, which comprises mobile body position data 13 and communication status data of a directly connected destination. Reference numeral 15 denotes a directional search command, 16 denotes an antenna search control unit that inputs the directional search command 15 and outputs an antenna drive command 17, 18 denotes an antenna drive unit that executes search driving of a directional antenna, 19 denotes a reception signal, and 20 denotes reception. 21, received data; 22, a self-position locating unit for knowing the position of the mobile object; 23, self-position data; 24, mobile object position data 13 received by the omnidirectional antenna 10 and reception of the directional antenna 9; Data 21
A reception signal switching unit for switching data with respect to the position of
25 is network location data, 26 is map data, 2
7, a map data signal; 28, a data mixing unit for plotting the self-position data 23 and the network position data 25 on the map data; 29, mixing data;
Is a communication coverage calculation unit for calculating a communication coverage 31 for each mobile object from the mixing data 29; 32 is a communication route selection calculation unit for calculating an optimum communication route 33 from the communication coverage 31;
Is a display switching unit for selecting display data 35 from the mixing data 29, the communication coverage area 31, and the optimum communication path 33; 36, a display unit for displaying the display data 35 graphically; 37, a reception signal switching command; A request 39 is a display switching request, and 40 is a communication path calculation request.

[0009] The operation of the communication apparatus configured as described above will be described. The sender inputs data of contents desired to communicate with a desired communication partner as the input instruction command 4 to the instruction processing unit 5. The instruction processing unit 5 outputs the transmission data 6 to the transmission unit 7 and also outputs the pointing search command 15 to the antenna search control unit 16. The transmitting unit 7 outputs the transmission signal 8 to the directional antenna 9, and the directional antenna 9 generates the transmission radio wave 1. At this time, the directional antenna 9 receives the antenna drive command 17 from the antenna search control unit 16 and the antenna drive unit 18 starts to search and starts searching the directional direction. When an arbitrary mobile unit receives the transmission radio wave 1, the communication network reception radio wave 3 is transmitted. Therefore, the transmitting side receives the radio wave 3 with the omnidirectional antenna 10 or the directional antenna 9, and receives the communication network reception signal. 11 or the received signal 19 is obtained and received by the omnidirectional antenna receiving unit 12 or the receiving unit 20.

Here, when the other mobile object position data 13 is output from the omnidirectional antenna receiving unit 12, it is input to the antenna search control unit 16, and further, the network communication of the communication state data of the network reception data 14 of the other party is performed. The receivable state is input to the instruction processing unit 5, and when the instruction processing unit 5 outputs a pointing fixation command as the pointing search command 15 to the antenna search control unit 20, the directional antenna 9 points in the direction of the moving object in line of sight. Here, an integrated communication network is configured. Next, the one-to-one partner mobile unit also forms the next network in a similar manner, and each time a network is formed, the mobile unit located at its own position and under its own network with respect to the transmission source for itself. Send location data. The receiving system of the directional antenna 9 is a system that functions for one-piece communication. In this way, a network is arbitrarily formed in the initial search one after another. After that, network location data 2
5. The self-position data 28 and the map data 26 obtained from the self-position locating unit 22 are input to the data mixing unit 28, and the positions of the respective moving objects are plotted on the map data, and the mixing data 29 is output to the communication coverage calculating unit 30. I do.

The communication area calculation unit 30 obtains a communication area 31 for each mobile object based on a three-dimensional geographical communication failure condition and outputs it to the communication path selection operation unit 32. The communication path selection calculation unit 32 is an optimal communication path 33 in the network from the communication coverage area 31 of each mobile unit to the mobile unit of a desired communication partner.
Ask for. The optimal communication route is one that seeks a solution that minimizes the number of mobile vehicles serving as relay stations. The determined communication path 33 is input to the instruction processing unit 5, and the instruction processing unit 5 outputs communication path designation data as transmission data 6, and transmits the data to another moving object by the directional antenna 9. Upon receiving this transmission, each mobile operates to reconfigure the network according to the communication routing data. In addition, the display unit 36 can monitor the mixing data 29, the communication coverage area 31, and the communication path 33 in each processing process as needed. The activation of each processing unit is controlled by a communication coverage calculation request 38, a display switching request 39, and a communication path calculation request 40 issued from the instruction processing unit 5. By using this monitor, for example, there is an advantage that it is possible to know to which position the user should move in order to perform direct communication even with a partner who cannot communicate normally due to a communication failure.

Next, the operation in the case where the mobile terminal functions as a relay station will be described. When the communication network reception radio wave 3 which is a radio wave requesting the network is received, a network request for the communication state data 14 is input to the instruction processing unit 5, and the instruction processing unit 5 can accept a network relay station according to its own communication state. At this time, the directional search command 15 is output to the antenna search control unit 16, and the antenna search control unit 16 directs the directional antenna unit 9 toward the transmission partner by the antenna driving unit 18 in accordance with the input of the position data 13 on the transmission side. In this way, the first integrated network is formed, and in the next step, the directional antenna unit 9 responds to the network request received and input to the instruction processing unit 5 according to the communication procedure described above, and performs the next communication. Enter the articulated operation. At this time, reception from the source side is performed using the omnidirectional antenna unit 10 and transmission to the destination side is performed using the directional antenna unit 9.

FIG. 2 is an explanatory diagram of the construction process of the communication network according to the present invention. In the figure, reference numeral 41 denotes the configuration of the communication apparatus of the present invention excluding the directional antenna unit 9 and the omnidirectional antenna unit 10, 42 denotes a transmission source network request for transmission contents of transmission radio waves, 43 denotes transmission source transmission destination designation data, 44 Is transmission source self-position data, and 45 is transmission source communication route designation data. The source communication path designation data 45 is not transmitted at the time of the first connection. 46 is a relay station receivable signal, and 47 is relay station position data. The relay station position data 47 includes the position data of the mobile transmission partner 57 at the time of connection with the mobile transmission partner 57. Similarly 4
8 is a relay station network request, 49 is relay station transmission partner specification data, 50 is relay station self-position data, 51 is relay station communication path specification data, and the contents of source communication path specification data 45. 52 is a destination receivable signal,
53 is transmission destination position data, 54 is a communication failure, 55 is a mobile transmission destination, 56 is a mobile relay station, and 57 is a mobile transmission destination.

Next, the construction process of the communication network will be described. When the mobile transmission source 55 attempts to communicate with the mobile transmission partner 57 and cannot be connected due to the communication failure 54, the mobile transmission source 55 is a mobile device that can be connected to itself by any other mobile device. Search and source network request 4
2. The transmission destination designation data 43 and the transmission source self-position data 44 are transmitted from the directional antenna unit 9. The mobile unit that can receive the transmission radio wave by the omnidirectional antenna unit 10 and that can receive the network relay station becomes the mobile relay station 56 and sends the mobile station transmission source 55 the relay station receivable signal 46 from the directional antenna unit 9 and The relay station position data 47 is transmitted, and connection between the transmission source and the relay station is performed.

Next, the relay station operates in the same manner as the previous transmission source, and the relay station network request 48,
The relay station transmission partner designation data 49 and the transmission source self-position data 50 are transmitted from the directional antenna unit 9. The mobile transmission destination that has received the transmission radio wave is a destination reception enable signal 52.
The transmission position data 53 is transmitted to the relay station, and the relay station and the transmission destination are linked. When the network is thus constructed for the first time, the transmission source 55 determines the optimal communication route, transmits the source communication route specification data 45, and the designated relay station receives the source communication route specification data 45. Is transmitted as the relay station communication route designation data 51, and the communication network is constructed. Thereafter, when the transmission source transmits desired transmission data using the directional antenna, the omnidirectional antenna of the relay station receives the data and relays the data to the transmission destination using the directional antenna. The transmission destination receives the data with the omnidirectional antenna, and the data transmission is completed.

FIG. 3 is an explanatory diagram of communication path selection in the present invention. In the figure, 55 is a mobile transmission destination, 56 is a mobile relay station, 57 is a mobile transmission destination, 58 is another mobile within the communication coverage area, 59 is a source communication coverage area, and 60 is a relay station communication. Coverage area, 61 is communication path, 54 is communication failure, 6
2 is map data.

When selecting a communication route, the position of each mobile unit is plotted on a map 62, and among the three-dimensional geographic information read from the map data, the terrain obstacle 54 and the communication distance performance are taken into consideration. The source communication area 59 and the relay station communication area 60 of each mobile unit are calculated. As shown in the figure, the communication coverage area where the communication failure 54 exists is reduced. The optimum communication route 61 and the relay station 5 from the communication source 55 to the communication partner 57 according to the information shown on the map in this way.
6 can be selected.

[0018]

As described above, according to the present invention, in a case where high-speed large-capacity communication is performed in a communication mounted on a mobile object, the directivity can be improved in an environment where the line-of-sight condition is not established due to the influence of terrain and the like. When communication is performed, a plurality of arbitrary mobiles are used as relay stations, and a communication network is configured in an optimal form to enable communication between desired mobiles.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of a communication device according to the present invention;

FIG. 2 is an explanatory diagram of a communication network construction process according to the present invention.

FIG. 3 is an explanatory diagram of communication path selection in the present invention.

FIG. 4 is a configuration diagram of an embodiment of a conventional communication device.

[Explanation of symbols]

 Reference Signs List 5 instruction processing unit 7 transmitting unit 9 directional antenna unit 10 omnidirectional antenna unit 12 omnidirectional antenna receiving unit 16 antenna search control unit 18 antenna driving unit 20 receiving unit 22 self-locating unit 24 received signal switching unit 28 data mixing Unit 30 communication coverage calculation unit 32 communication route selection calculation unit 34 display switching unit 36 display unit 41 communication device 55 mobile transmission source 56 mobile relay station 57 mobile transmission partner 58 other mobile

Claims (1)

(57) [Claims] 1. A communication data transmission / reception means using a directional antenna, a search means for controlling the directional antenna so as to search for any other communicable mobile body, and receiving communication data from a transmission partner. Data receiving means having an omni-directional positive antenna, self-position detecting means for knowing the position of a moving object on the ground, and self-positioning means for receiving the communication data transmitting / receiving means, data received by the data receiving means, map data and output from the self-position detecting means. a communication covering Field arithmetic means for calculating a communication area coverage and a position data, a communication route selecting operation means for determining an optimal communication path from the communication covering areas, and indicate to Display means the communication covering zone and the communication path A communication device, comprising: