JPH04257999A - Data transmitting and displaying system for moving vehicle - Google Patents

Abstract

PURPOSE:To suppress radio traffic, to exclude wrong reception, to secure automatic reception, to relax the condition of distributing transmitted data, and to improve accuracy and reliability for geographical guidance. CONSTITUTION:An instruction data is transmitted from a center side equipment A to plural moving vehicles 7 by data transmission or character data transmission by radio enabling the designation of the transmitting destination in place of voice radio. A moving vehicle side equipment B receives this transmitted data and displays it on a display 6. On the other hand, the center side equipment transmits a map coordinate data to the designated moving vehicle 7 so as to decide a map near the current position of the vehicle, and the moving vehicle side equipment retrieves the nearby map with this map coordinate data as a key, displays the map on the display 6 and receives the geographical guidance.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a data transmission and display method for moving vehicles, and in particular, for the purpose of guidance and instructions from the headquarters to a plurality of moving vehicles operated by the fire department, police, transportation industry, etc. The present invention relates to a data transmission and display method for a moving vehicle that wirelessly transmits and displays transmission data including information.

0002

2. Description of the Related Art The conventional method for giving guidance instructions to a moving vehicle as described above is performed by voice using a radio communication device. Furthermore, even when transmitting information is transmitted, the transmission method is limited to transmission methods that target all vehicles simultaneously or one specific vehicle.

Furthermore, when geographically guiding a moving vehicle, the head office confirms the map and then communicates with the moving vehicle by wireless voice transmission.

0004

[Problems to be Solved by the Invention] The above-mentioned method of transmitting information to moving vehicles using the conventional voice radio device itself causes an increase in radio traffic, and also has no recordability due to the transient nature of the voice, and furthermore, The disadvantage is that reception errors due to differences are unavoidable. Furthermore, when transmitting information through data transmission, it is limited to whether it is sent to all moving vehicles at once or by establishing a link with a specific vehicle, and each moving vehicle must be specified in detail. The disadvantage is that it cannot be done.

[0005] On the other hand, geographical guidance for moving vehicles requires a large amount of time for guide personnel to check maps and provide voice guidance.
Moreover, there are disadvantages in that erroneous guidance and an increase in wireless traffic are unavoidable.

[0006]

[Means for Solving the Problems] The method of the present invention is a data transmission and display method for a moving vehicle that transmits and displays data to a moving vehicle operated based on instructions from a headquarters. An information input panel for inputting transmission information or transmission character information including the presence or absence of designation, a data management control device for encoding and outputting the input information of this information input panel, and transmitting the output of this data management control device to radio waves of a designated channel. a headquarter-side device having a wireless transceiver that transmits external radio waves and receives external radio waves of a designated channel;
A radio transceiver that receives the radio waves transmitted by the radio transceiver of the head office side device and also transmits its own radio waves, and determines whether the output of this radio transceiver is addressed to itself, and if it is addressed to itself. The mobile vehicle apparatus includes a data management control device that decodes and outputs the data, and a display that displays the output of the data management control device as an image.

The method of the present invention is also a data transmission and display method for moving vehicles that transmits and displays map information to moving vehicles operated based on instructions from headquarters,
An information input panel for inputting the vehicle number of a moving vehicle to send map information and address information of the area desired to be displayed, and a map display that stores coordinate data necessary for displaying the map and displays the map based on the address information input from the information input panel. a map coordinate management device that searches for coordinates for specifying the address information necessary for a wireless transceiver that receives the radio waves transmitted by the radio transceiver of the headquarters device and transmits its own radio waves; and a radio transceiver that contains map data and responds to the output of the radio transceiver. It is configured to include a map data search device that searches and outputs map data, and a display that displays the map data as an image.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of a first embodiment of the present invention. The embodiment shown in FIG. 1 takes as an example a case in which a data transmission destination is specified from the headquarters to a moving vehicle and data is transmitted. A data management control device 2 that encodes the encoded data to be transmitted, a wireless transmitter/receiver 3, a wireless transmitter/receiver 4 as a moving vehicle side device, a data control device 5 that decodes and outputs the encoded transmitted data, and a display 6. It consists of:

Next, the operation of the first embodiment will be explained.

[0011] From the information input panel 1, the conditions of the destination and instruction data are input. The data management control device 2 encodes the destination specification conditions and instruction data and edits them into text as shown in FIG. The sending destination specification condition is composed of three elements: function code 8, number of parameters 9, and parameter 10, and the sending destination is specified by this condition. These texts are transmitted by the radio transceiver 3 to the mobile vehicle 7. By encoding, the transmission data density reaches more than ten times that of voice transmission. (120
In the case of 0BPS transmission, equivalent to 120 characters per second, 6 in Japanese
(equivalent to 0 characters) On the moving vehicle 7 side, the wireless transceiver 4 receives the data, and the data management control device 5 decodes it. At this time, the destination designation conditions are deciphered and it is determined whether the vehicle number preset for the host vehicle corresponds to the destination vehicle. If applicable, the instruction data 11 is displayed on the display 6. If not applicable, the instruction data 11 is ignored.

FIG. 3 is a diagram illustrating an example of the destination designated by the text in FIG. 2.

FIG. 4 is a block diagram of a second embodiment of the present invention. The second embodiment shown in FIG. 4 takes the case of transmitting character data to a moving vehicle as an example, and uses an information input panel 1 that is shared with the case of FIG.
, a data management control device 2 shared with the case of FIG. 1 that encodes the output of the information input panel 1, and a wireless transmitter/receiver 3 same as the case of FIG. , the same wireless transceiver 4 as in the case of FIG. 1, the data control processing device 5 in common with the case in FIG. 1, and the same display 6 as in the case in FIG.

Next, the operation of the embodiment shown in FIG. 4 will be explained.

[0015] From the information input panel 1, the vehicle number of the destination and the message to be sent are input. The data management control device 2 encodes the vehicle number and the sent text and sends it from the wireless transceiver 3. Sentences can be encoded at speeds of 60 to 1 per second.
It is possible to transmit at a speed of about 00 characters, which is more than 10 times faster than voice transmission.

On the moving vehicle 7 side, the wireless transceiver 4 receives data, and the data control processing device 5 decodes the data. At this time, if the vehicle number matches the preset number of the own vehicle, the character data portion is displayed on the display 6.

FIG. 5 shows the data format of the transmission data sent from the headquarters side to the mobile vehicle side, and shows that the data is composed of a vehicle number 12 and character data 13.

FIG. 6 is a block diagram of a third embodiment of the present invention. The third embodiment takes as an example the case where map information is sent to a designated moving vehicle, and the information input panel 14 inputs input information for determining the vehicle and address, and the information is provided from the information input panel 14. A head office device includes a map coordinate management device 15 that performs a coordinate search for displaying a map based on the address information sent, and a wireless transceiver 16 that transmits vehicle numbers and map coordinates. a wireless transmitter/receiver 17 that receives the received signal; and a map data search device 1 that searches for map data based on the received output of the wireless transmitter/receiver 17.
8 and a moving vehicle side device equipped with a display 19.

Next, the operation of the third embodiment will be explained.

From the information input panel 14, enter the vehicle number of the vehicle for which you want to send the map and the address of the area you want to display (XX Town XXX
(Chome, number XX, number XX, etc.). Map coordinate management device 1
Step 5 searches for coordinates for map display based on the input address information. The vehicle number and map coordinates thus obtained are sent from the wireless transceiver to the moving vehicle 7 in the format shown in FIG.

The moving vehicle 7 receives the vehicle number and map coordinates with the wireless transceiver 17, and if the received vehicle number is the own vehicle, the map data search device 18 searches for map data of the corresponding area, and displays the map data on the display device. 19 as a map.

[0022]

[Effects of the Invention] As explained above, the present invention allows the head office to specify a destination to a moving vehicle, encode and send instruction data, and transmit instruction information in character code for display. By doing so, wireless traffic is significantly suppressed by encoding instruction information and character encoding, basically eliminating erroneous reception due to mishearing in the case of voice transmission, ensuring automatic reception, and making it possible to send multiple identical instructions. It has the advantage that it can be sent to several moving vehicles in one go.

Furthermore, the present invention transmits and displays the position of a moving vehicle on a map wirelessly from the headquarters, thereby greatly suppressing wireless traffic by converting the geographical guidance information of the moving vehicle into data. This has the effect of significantly improving guidance accuracy and reliability.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a first embodiment of the present invention.

FIG. 2 is a diagram showing a text format sent from the headquarters to a moving vehicle in the first embodiment.

FIG. 3 is a diagram illustrating an example of destination designation using text in FIG. 2;

FIG. 4 is a configuration diagram of a second embodiment of the present invention.

FIG. 5 is a data format of transmission data sent from the headquarters to a moving vehicle in the second embodiment.

FIG. 6 is a configuration diagram of a third embodiment of the present invention.

FIG. 7 is a data format of transmission data sent from the headquarters to a moving vehicle in the third embodiment.

[Explanation of symbols]

1 Information input panel 2 Data management control device 3,4 Wireless transceiver 5 Data control processing device 6 Display 7. Moving vehicle 8 Function code 9 Number of parameters 10 Parameters 11 Instruction data 12 Vehicle number 13 Character data 14 Information input panel 15 Map coordinate management device 16,17 Wireless transceiver 18 Map data search device 19 Display 20 Vehicle number 21 Map coordinates

Claims (2)

[Claims] Claim 1. A data transmission and display method for a moving vehicle that transmits and displays data to a moving vehicle operated based on instructions from a headquarters, the data transmission display method including transmission information or transmission characters including whether or not the moving vehicle is designated. An information input panel for inputting information, a data management control device for encoding and outputting the input information of this information input panel, and transmitting the output of this data management control device using radio waves on a designated channel, as well as external radio waves on the designated channel. a head office device having a wireless transmitter/receiver for receiving data; a wireless transmitter/receiver that receives radio waves transmitted by the wireless transmitter/receiver of the head office device and also transmits its own transmitted radio waves; The mobile vehicle side device includes a data management control device that determines whether the data is addressed to the user and decodes and outputs the decoded data if the data is addressed to the user, and a display that displays the output of the data management control device as a video image. A data transmission and display method for a moving vehicle, characterized by: [Claim 2] A data transmission and display method for a moving vehicle that transmits and displays map information to a moving vehicle operated based on instructions from a headquarters, the data transmission and display method including the vehicle number and display of the moving vehicle that is to transmit the map information. An information input panel for inputting address information of a desired area and coordinate data necessary for map display are stored, and coordinates for specifying the address information necessary for map display are searched based on the address information input from the information input panel. A head office device having a map coordinate management device, a wireless transceiver that transmits the vehicle number and map coordinates in a predetermined format and on a predetermined channel, and receives external radio waves on the same channel, and wireless transmission and reception between the head office device. a wireless transceiver that receives radio waves transmitted by the machine and transmits its own radio waves; a map data search device that includes map data and receives output from the radio transceiver to search and output corresponding map data; 1. A data transmission and display method for a moving vehicle, comprising: a display that displays the map data as an image.