JP2840810B2 - Communications system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system suitable for use in management of various moving objects.

[0002]

2. Description of the Related Art Conventionally, in order to confirm the position of a mobile body such as an automobile at a remote place, a method of mounting a wireless communication device on each mobile body and communicating the position with the wireless communication device is known. General. Such a method by wireless communication is applied, for example, when a taxi company or a transportation company grasps the position of each vehicle operated.

[0003] In addition to the system used in the business of such a company, when traveling with a plurality of automobiles or motorcycles, etc., a wireless communication system is used to mutually know the positions of the vehicles. Wireless communication on devices is widely used.

[0004] As the wireless communication device applied in such a case, there are various communication systems such as a case where each communication device is directly connected wirelessly or a case where a wireless telephone system is used.

[0005]

However, in such a wireless communication method, for example, in the case of a taxi company,
It is necessary for the driver of each vehicle to respond to the communication from the company by voice, and in some cases it may be difficult to respond while driving, and because the position is notified by voice, the current position etc. There were disadvantages that were not always accurate.

[0006] In view of the foregoing, it is an object of the present invention to make it possible to easily know the position and state of a moving object.

[0007]

According to a first aspect of the present invention, as shown in FIG. 1, for example, there is provided a center having communication means capable of transmitting and receiving data, and a communication means capable of transmitting and receiving data to and from this center. In a communication system having a plurality of terminals, a current position detection unit is provided for each of the terminals, and a center is provided with a position display unit, a map data storage unit, and a position data storage unit for each terminal, By transmitting the detection position data transmission request signal from the center to each terminal,
The position data detected by the current position detecting means of the corresponding terminal is transmitted to the center, and the current position is displayed on the map based on the map data by the center position displaying means, and the detected position data transmission request signal is transmitted. Thus, the display position of the terminal that does not return the position data is a position based on the past position data stored in the position data storage means.

[0008]

[0009]

[0010]

[0011]

[0012]

[0013] The second invention is the first invention, wherein
The identification name given to each terminal is displayed near the display position of each terminal on the display map.

[0014]

[0015] In a third aspect based on the first aspect,
When a position is displayed based on past position data, the position is displayed in a manner different from other position displays.

According to a fourth aspect of the present invention, in the first or second aspect, a storage means is provided for storing the position data received by the center, and the storage means stores the past position data of each terminal and the current position data. Based on the above, the trajectory of each terminal moved on the display map is displayed.

[0017]

[0018]

According to a fifth invention, in any one of the first to fourth inventions, at least one of the plurality of terminals and a center are provided with a message display means, and the message display means is provided. Between the terminal equipped with
It is designed to be able to transmit messages.

[0020] In a sixth aspect based on the fifth aspect,
A message selected from messages prepared in advance is transmitted to the center or the terminal.

[0021] In a seventh aspect based on the fifth or sixth aspect, the message is provided with location data and transmitted.
The position corresponding to the position display means provided on the receiving side is displayed.

According to an eighth aspect of the present invention, in the seventh aspect,
The position data added to the message and transmitted is the current position data detected by the current position detecting means.

In a ninth aspect based on the seventh aspect,
The position data to be added to the message and transmitted is position data of a target point or a passing point.

According to a tenth aspect, in any one of the first to ninth aspects, the center is provided with a current position detecting means, and the center position data is transmitted to each terminal.

[0025]

According to the first aspect of the present invention, the data of the current position of each terminal is transmitted to the center by transmitting the detection position data transmission request signal from the center to each terminal. Even if there is a terminal that can know the current position and does not return the position data, the position based on the position data received in the past is displayed, so that the terminal (mobile) that cannot receive the current position Even in this case, the approximate position can be grasped on the center side.

[0026]

[0027]

[0028]

[0029]

[0030]

According to the second aspect of the present invention, the identification name given to each terminal is displayed near the display position of each terminal on the display map, so which terminal (mobile) is determined. It will be easy to understand.

[0032]

According to the third aspect of the invention, when a position is displayed based on the past position data, the position is displayed in a manner different from other position displays, so that the display by the past position data can be easily performed. You will understand.

According to the fourth aspect of the present invention, the trajectory of each terminal moved on the display map can be displayed, so that the moving state of each terminal (moving body) can be grasped.

[0035]

[0036]

According to the fifth aspect of the present invention, the message can be transmitted between the terminal and the center, so that the system of the present invention can be used as a message transmitting means.

According to the sixth aspect, a message selected from messages prepared in advance at the center or the terminal can be transmitted, so that the message can be easily transmitted.

According to the seventh aspect of the present invention, the message can be transmitted with the position data added thereto, so that the message with the specified position can be easily transmitted.

According to the eighth aspect of the present invention, the current position data detected by the current position detecting means is added to the message and transmitted, so that the current position and the message are transmitted at the same time, and the location where the message is transmitted can be determined. Become like

According to the ninth aspect, by transmitting the position data of the target point or the passing point to the message and transmitting the message, the transmission of the message designating the target point or the passing point can be simplified.

According to the tenth aspect of the present invention, the center is provided with a current position detecting means so that the position data of the center can be transmitted to each terminal. Can be determined on each terminal side.

[0043]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In this example, the present invention is applied to a system for managing a plurality of moving objects (vehicles) in a center location, and it is assumed that each moving object has a terminal.

FIG. 1 is a diagram showing the overall configuration of the communication system of the present embodiment. In FIG.
The center 1 includes a display device 100, a converter 2, and a transmission / reception unit 3. The specific configuration of the display device 100 will be described later. The display device 100 is connected to the converter 2
Is connected to the transmitting / receiving unit 3 via the
A conversion process for performing data transmission between the display device 100 and the transmission / reception unit 3 is performed. And the display device 1
The data generated in 00 is converted into transmission data by the converter 2 and then supplied to the transmission / reception unit 3 so that the transmission / reception unit 3 performs transmission processing, and the transmission / reception antenna 4 connected to the transmission / reception unit 3 Transmitted wirelessly. In this case, in this example, wireless transmission is performed via the base station 5.

A signal wirelessly transmitted from the base station 5 is received by the transmission / reception antenna 4 and subjected to reception processing by the transmission / reception unit 3. The received data is supplied to the display device 1 via the converter 2. You. The devices from the display device 100 to the transmission / reception antenna 4 are devices installed at the center.

Here, the configuration of the display device 100 is shown in FIG. 2, and the display device 100 is relatively small in size.
A display panel 101 including a liquid crystal panel is provided, and characters and graphics can be displayed on the display panel 101.
In this case, four function display sections 102, 103, 104, and 105 are formed at the lower end of the display panel 101, and the function display sections 102, 103, and
Function keys 1 arranged near 104 and 105
24, 125, 126, and 127 are functions of the display unit 1
The functions are displayed as 02 to 105.

Also, on the side of the display device 100, 2
The card slots 106 and 107 are arranged, and the function of the display device is set according to the program data stored in the memory card mounted in each of the slots 106 and 107. Here, the program data card 201 is mounted on one card slot 106, and the map data card 202 is mounted on the other card slot 107. This program data card 20
1 stores program data for using the display device 100 as a position display device, and a map data card 202 stores a display panel 1 of the display device 100.
01 stores map data for displaying a road map.

The operation keys arranged on the display device 100 include a power key 111 and a backlight key 11.
2, setting function key 113, card function key 114, point function key 115, message key 116, monitoring key 117, display switching key 118, individual moving body information display key 119, cursor key 120, enter key 1
21, a recall key 122, a zoom key 123, and the function keys 124 to 127 described above. In this case, the cursor keys 120 can indicate the directions up, down, left, and right, and the zoom keys 123 can be set in the + direction and the-direction.
An instruction to zoom in the direction can be given.

The operation information of the keys 111 to 127 is supplied to a system controller (not shown) for controlling the operation of the display device 100. When the program data card 201 is mounted on the display device 100 of the present embodiment, the operation performed under the control of the system controller is as follows: the map data stored in the map data card 202 is read and the road data is displayed on the display panel 101. While displaying the map, on this map,
The position indicated by the current position data transmitted from the terminal described later is displayed. At this time, the name set for each terminal is displayed at the same time. The current position data transmitted from each terminal is stored in a memory in the system controller. Further, a message displayed on the display panel 101 can be transmitted to each terminal, and a message transmitted from each terminal can be displayed on the display panel 101. is there. These functions will be described later.

Returning to the description of the configuration of the communication system shown in FIG. 1 using the display device 100, the center 1 equipped with the display device 100 transmits a plurality of terminals 10 and 20 via the base station 5. , 30}. Here, the base station 5 includes a communication control unit 6, and the communication control unit 6 performs communication control using the identification numbers assigned to the center and each terminal. As the identification numbers, there are a system identification number that is commonly set for the center and the terminal that constitute this system, and an individual identification number that is individually set for the center and each terminal. When transmitting from the base station 5 to the base station 5, a system identification number, an individual identification number of a transmission source, and an individual identification number of a transmission destination are added and transmitted.

In this case, the communication control unit 6 includes a transmission data memory 6a, and when message data is transmitted,
This message data is stored until it is received by the other party.

The configuration of each of the terminals 10, 20, 30 # will now be described.
20 and 30, each of the terminals 10, 20 and 30 includes transmission / reception antennas 11, 21 and 31, and the transmission / reception units 12, 22 and 32 receive signals received by the transmission / reception antennas 11, 21 and 31. . Then, the reception data processed by the transmission / reception units 12, 22, and 32 is received by the GPS receiver 1 via the converters 13, 23, and 33.
4, 24, 34.

The respective GPS receivers 14, 24,
34 is a GPS (Global Positionin)
g System) is a positioning device of the current position by a positioning system using an artificial satellite called GPS
Receiving antennas 15, 25, and 35 for receiving signals from satellites are connected.

The data of the coordinate positions received by the antennas 15, 25, 35 and calculated by the arithmetic circuits in the GPS receivers 14, 24, 34 are converted into converters 13, 23,
The transmission / reception units 12, 22, and 32 transmit the data to the base station 5 by wireless transmission from the transmission / reception antennas 11, 22, and 31. It is. Various accompanying data such as the traveling direction and the traveling speed detected along with the data of the current coordinate position are also transmitted wirelessly at the same time.

In this embodiment, each terminal 10, 2
At 0 and 30, the mobile (vehicle) on which the terminal is installed
Vehicle state detection circuits 17, 27, 37 for detecting the state of the vehicle are provided.
7 transmits the detected data to the transmission / reception units 12, 22, 3
In step 2, reception processing can be performed together with the current position data. The vehicle state detection circuits 17, 27, 37
For example, when the vehicle is a taxi, the vehicle state detected in the above includes a state relating to a traveling state with a passenger, an empty state, a pick-up state, a forwarding state, a break state, and the like.

It is to be noted that the transmission / reception units 12, 22, and 32 of the terminals 10, 20, and 30 receive the GPS receiver 1
The data supplied to 4, 24 and 34 include, for example, a detection position data transmission request signal. When this detection position data transmission request signal is supplied to each of the GPS receivers 14, 24, and 34, each of the GPS receivers 14, 24, and 34 turns on the power of a circuit necessary for positioning, and performs positioning of the current position. Do.
The data of the current coordinate position obtained by the positioning is supplied to the transmission / reception units 12, 22, and 32, and the base station 5
Side to transmit wirelessly.

A display device 36 is connected to the terminal 30. The display device 36 is basically the same device as the display device 100 provided on the center 1 side. However, in the case of the display device 36 on the terminal side, a program data card which stores a program that operates as a terminal is used as a program data card to be inserted into the card slot.

The display device 36 on the terminal 30 side
Is connected to the GPS receiver 34 so that the current position measured by the GPS receiver 34 can be displayed on the display device 36. Also, the transmission / reception unit 32 of the terminal 30
Can be displayed on the display panel of the display device 36, and the message displayed on the display panel can be transmitted to the base station by the transmission / reception unit 32.

Next, data transmission performed using the system configured as described above will be described. First, the initial setting required on the center 1 side will be described with reference to the flowchart of FIG. 3. When the power of the display device 100 on the center 1 side is turned on, the system controller of the display device 100 performs the initial setting. It is determined whether or not there is (step 101). When it is determined that the initial setting has not been performed, the center position of the road map to be displayed is set (step 102). At this time, as shown in FIG. 4, a road map of a predetermined location is displayed on the display panel 101 at the scale selected by the zoom key 123, and the identification mark P1 indicating the center position is displayed on the screen. The center position, that is, the position of the identification mark P1 is moved by the operation, and the center position can be set to a desired position. At this time, as shown in FIG. 4, "Please specify the center position" is displayed in characters.

When the setting of the center position is completed, a mobile unit (terminal) to be monitored is selected (step 103). At this time, as shown in FIG. 5, the message "Please set the monitoring display" is displayed.
Do you want to monitor all moving objects in this system?
Alternatively, the user selects the moving object to be monitored individually by operating the cursor key 120. In the case of FIG.
This shows a state where monitoring of the whole is selected.

When a mobile object to be monitored individually is selected, a mobile station setting screen as shown in FIG. 6 is displayed. On this screen, a list of mobile units (terminals) belonging to this system is displayed. In this case, in this example, an identification name of up to two characters can be assigned to each terminal. For example, when the moving body is a car, the driver name of this vehicle is set as the identification name. I do. Then, following the identification name, the individual identification number set for each terminal is displayed. It should be noted that information on these terminals is described in the memory card 20 attached to the display device 100.
1 is stored. Further, the identification name and the individual identification number can be set or changed by a predetermined key operation. Also, on the mobile station setting screen, the own station (that is, the center) is displayed as the individual number 0.

With the mobile station setting screen displayed,
By operating the cursor key 120 and the enter key 121, a process of selecting a moving object to be monitored from the displayed moving objects is performed.

After the selection of the moving object to be monitored is performed, an interval for monitoring each moving object is set (step 104). At this time, as shown in FIG. 7, the interval set on the screen is displayed in “minutes” and the cursor key 12
The displayed interval is sequentially changed by the operation of “0”, and is set by operating the enter key 121 with the desired interval displayed. In this case, it takes three minutes to monitor one terminal once. Therefore, the minimum interval that can be selected is [number of monitored objects × 3 minutes]. If a shorter time is set, an input error is displayed on the screen and the setting is made again. When the monitoring interval is set, each terminal is caused to transmit a detection position data transmission request signal from the center 1 at the set interval.

When the setting of the interval for monitoring each moving body is completed, the initial setting is completed. By performing this initial setting, it becomes possible to monitor the position of each mobile object. Next, a process for monitoring the position of each moving object will be described with reference to the flowchart of FIG. First, the monitoring of the position of each moving object is started by operating the monitoring key 117.
It is determined whether or not 7 has been operated (step 111). Here, when the monitoring key 117 is operated,
As shown in FIG. 9, a road map and a moving object are displayed (step 112). The road map display at this time is a map display centered on the position set in the center position setting at the time of the initial setting. Then, as the displayed moving object, among the moving objects selected to be monitored at the time of the initial setting, the moving object located within the range indicated by the map being displayed, based on the latest current position data, The moving object is displayed together with the set identification name. In FIG. 9, four mobile units M1,
M2, M3, and M4 are displayed on the map with the traveling direction indicated.

As the position to be displayed on the map, the latest current position data transmitted from each mobile unit (terminal) is used, and the corresponding position on the map is used. If the current position data is not returned in the transmission of the immediately preceding detected position data transmission request signal, the latest position data stored in the display device 100 of the center 1 is used and the map data is used. Display the position above. However, when displaying a moving object that cannot receive this data, the moving object is displayed in a state where it can be distinguished from other moving objects.
In the display example shown in FIG. 9, the moving object M4 corresponds to a moving object that cannot receive data, and the display colors are reversed from those of the other objects.

Then, each time the latest current position data of each mobile unit is received, the display position is updated successively.

Returning to the description of the flowchart of FIG. 8, when the position confirmation key is operated in a state where the monitoring screen is displayed (step 112), the processing shifts to processing A in the position confirmation mode (step 113). ). When the center position key is operated, the process proceeds to the center position mode process B (step 114). When the trajectory key is operated, the process proceeds to trajectory mode processing C (step 115). When the navigation key is operated, the process proceeds to the process D in the navigation mode (step 116).

Keys for setting these modes are as follows:
The display corresponding to the function display sections 102, 103, 104, and 105 shown at the bottom of the display screen of FIG. 9 is performed, and the function keys 124, 125, 126, and 1 are displayed.
27 are used.

A description will be given of each of these modes. When the mode is set to the position confirmation mode in step 113 in the flowchart of FIG. 8, the process proceeds to the process of the flowchart of FIG. That is, first, a list of the moving objects being monitored is displayed (step 121). The display at this time is as shown in FIG.
As shown in (1), a list is displayed over the display map, and a process of selecting a moving object whose position is to be confirmed from the list by operating the cursor key 120 and the enter key 121 (step 122). ). When this mobile unit is selected, a control signal for calling the terminal of the specified mobile unit is transmitted from the center 1 to the corresponding terminal (step 123). When this control signal is transmitted and the other terminal is called, the current position data detected by this terminal is continuously transmitted. The display device 100 on the center 1 uses the continuously transmitted current position data to continuously display the position of the terminal (mobile body) (step 124). The display at this time is a map display centering on the current position of the selected moving object as shown in FIG.

Therefore, in the normal monitoring screen, the detection position moves only at predetermined intervals set at the initial stage.
In the position confirmation mode, the current position of the selected moving body can be continuously displayed.

When the position confirmation key is operated again when the position confirmation mode is set (step 1).
25), the mode is not in the position confirmation mode, and the display returns to the monitoring screen shown in FIG. 9 and returns to the monitoring state in which the position of each moving object is sequentially detected at set intervals.

Further, step 1 in the flowchart of FIG.
When the mode is set to the center position mode at 14, the process proceeds to the process of the flowchart shown in FIG. That is, the process first proceeds to the process of setting the center position (step 131). At this time,
As shown in FIG. 14, an identification mark P2 indicating the center position set in the screen is displayed on the screen, and the cursor key 1
The center position, that is, the position of the identification mark P2 is moved by the operation 20 and the center position can be set to a desired position. At this time, as shown in FIG. 14, "Please specify the position" is displayed in characters.

When the center position is set, the distance from the set center position to each moving object being monitored is determined by the system controller in the display device 100. Then, the status of the moving objects is displayed as a list in the order in which the determined distances are short (step 132). At this time, FIG.
As shown in FIG. 5, a list is displayed so as to overlap the map display. At this time, data relating to the situation of each moving object is also displayed in characters. For example, in the case of a taxi, whether or not there is an empty vehicle is displayed. Further, the time at which the latest position data was received is also displayed.

When the stop key is operated when the center position mode is set (step 133),
The mode returns to the monitoring screen shown in FIG. 9 without the center position mode, and returns to the monitoring state in which the position of each moving body is sequentially detected at set intervals.

Further, step 1 in the flowchart of FIG.
When the trajectory mode has been set in step 15, the process proceeds to the processing in the flowchart shown in FIG. That is, first, the display panel 101
Is displayed (step 141). As shown in FIG. 17, items such as recording, ending, reproducing, deleting and correcting the trajectory are displayed in a superimposed manner on the map display, and the menu is displayed by operating the cursor key 120 as shown in FIG. Can be selected. The processing of each item will be described with reference to the flowchart of FIG. 16. First, it is determined whether or not recording is selected (step 142). When recording is selected, a moving object to be recorded is selected on a selection screen (step 143). When the mobile unit to be recorded is selected, the recording of the position data transmitted from the terminal mounted on the selected mobile unit is started (step 14).
4).

Next, it is determined whether or not the recording end has been selected (step 145). When the recording end has been selected, the moving object for which the recording is to be ended is selected on the selection screen (step 146). On the selection screen at this time, a list of moving objects being recorded is displayed. Then, when the mobile unit whose recording is to be ended is selected, the recording of the position data transmitted from the terminal mounted on the selected mobile unit is ended (step 147).

Next, it is determined whether or not reproduction has been selected (step 148). When reproduction has been selected, a moving object whose trajectory is to be reproduced is selected on the selection screen (step 14).
9). At this time, on the selection screen, a list of moving objects on which the trajectories are recorded is displayed. Then, when a moving object for reproducing the trajectory is selected, a state in which the position data of the selected moving object changes is displayed as a trajectory on a map (step 150).

Next, it is determined whether or not the deletion is selected (step 151). When the deletion is selected, the moving body from which the recorded trajectory is to be deleted is selected on the selection screen (step 152). At this time, on the selection screen, a list of moving objects on which the trajectories are recorded is displayed. Then, when a moving object whose trajectory is to be deleted is selected, the data of recording the trajectory of the selected moving object is deleted from the memory (step 153).

When the stop key is operated when the trajectory mode is set (step 154), the trajectory mode is stopped, and the display returns to the monitoring screen shown in FIG. Return to the monitoring state in which the position is sequentially detected.

Step 1 in the flowchart of FIG.
When the navigation mode is set to 16 in FIG.
It moves to the processing of the flowchart shown in FIG. That is, first, it is determined whether or not the navigation is currently being performed (step 161). If the navigation is being performed, the process is terminated. If the navigation is not being performed, the operation of setting the destination is performed (step 162). At this time, as shown in FIG. 19, an identification mark P3 indicating the destination is displayed on the screen.
By operating the cursor key 120, the destination, that is, the identification mark P
The position of No. 2 is moved, and the destination can be set to a desired position. At this time, as shown in FIG. 19, "Please specify the destination" is displayed in characters.

When the destination is set, the process proceeds to selection of a moving object to be navigated (step 163). At this time, as shown in FIG. 20, the user operates the cursor key 120 to select whether to perform navigation for all the moving objects on the monitor or to select the moving objects to be individually navigated. Then, the destination set in the map is displayed (step 164). Here, the center 1 is caused to wirelessly transmit the coordinate data of the destination via the base station 5 to the terminal equipped with the display device. However, if it is not selected as a moving object to be navigated, it is not transmitted.

When the stop key is operated (step 165), the processing is terminated.

In this embodiment, individual information of each moving object can be displayed. In this case, by performing a predetermined operation, this individual information display mode is set, and as shown in FIG. 21, an identification mark P4 for selecting a moving object whose individual information is to be displayed is displayed on the screen, By operating the cursor key 120, the mark P4 is moved to the display position of any moving object, and the enter key 12 is moved.
By operating 1, the display shifts to the display of the individual information on the moving object whose display position overlaps the mark P4. As a display mode of the individual information, as shown in FIG. 22, this moving body is displayed in a state of indicating the traveling direction, and when a destination is set, an arrow P5 indicating the direction of the destination is displayed. Is done. Further, the time when the position data was received last time, the latitude and longitude of the current location, and the state (situation) of the vehicle are displayed in characters and numbers.

In this embodiment, the display switching key 118
By operating, it is possible to switch the monitoring display of each moving object to a display on which concentric circles are displayed as shown in FIG. 23 instead of a display on the map. in this case,
The distance indicating the radius of the concentric circle is displayed.

In this example, a plurality of points such as a destination and a passing point can be set in advance. The set points can be displayed in a list as shown in FIG.

In this embodiment, messages can be transmitted between the terminal having the display device and the center 1. Although the transmission processing and the reception processing of this message can be basically performed by the same operation on any display device, the case of operating on the display device 100 of the center 1 will be described here. First, referring to the flowchart of FIG. 25, when performing a process related to a message, the message key 116 is first operated (step 171). When the message key 116 is operated, the function keys 124 and 125 become the transmission key and the reception key, respectively. When the transmission key is operated, the process proceeds to the message transmission processing E (step 172). Further, when the reception key is operated, the message reception processing F
(Step 173).

If the transmission process when the transmission key is operated is shown in the flowchart of FIG. 26, the mobile unit to which the message is to be transmitted is selected (step 181). At this time,
As shown in FIG. 27, terminals prepared by this system (only terminals having a display device capable of receiving a message)
And a list of centers is displayed.
By operating the enter key 121, a desired terminal or center is selected. In the display at this time, as shown in FIG.
Display "Please specify the destination" in characters.

After the transmission destination is selected, a message to be transmitted is instructed. In this example, a fixed text prepared in advance is transmitted, and a free text input by performing a character input operation is displayed. In some cases, transmission is performed, and which is to be transmitted is selected (step 182). Here, when transmitting a fixed sentence, a list of fixed sentences is displayed on the display panel 101 as shown in FIG. 28 by a predetermined operation (step 183), and the cursor key 120 and the enter key 12 are displayed.
A desired message is selected by the operation 1 (step 1
84). At this time, at the time of displaying the list of fixed sentences, as shown in FIG.
Is displayed.

Some fixed sentences require partial input of characters or numbers, and the system controller of the display device 100 determines whether or not the fixed sentence having the input portion is selected (step S1). 185) If a fixed sentence having an input portion is selected, a screen for executing a character or numeric input operation is displayed (step 186).

As a fixed sentence that requires partial input of characters and numbers, for example, "Please collect in XX"
Is prepared, and a character such as a place name is input in a location marked as XX. Alternatively, a fixed sentence "Please deliver at xx hour xx minutes" is prepared, and a number indicating the time is input in the portion marked xx. When a place name or the like is input, a place name set as a destination, a passing point, or the like may be input.

If it is determined in step 182 that a free sentence is to be transmitted, a character input screen is displayed on the display panel 101 (step 187). That is, as shown in FIG. 29, the letters are displayed in the order of the 51st note and the letters and the numbers are also displayed. Then, the input characters are selected one by one by operating the cursor keys 120 and the enter key 121 to create a message (step 188). In the case of the display device 100 of the present example,
It has a kana-kanji conversion function for input characters and can create messages with kanji.

Then, in both the fixed sentence and the free sentence,
It is determined whether the message to be transmitted is a message requiring the current position data (step 189). This determination is automatically made by the system controller of the display device 100 in the case of a fixed sentence, and is selected by an input operation in the case of a free sentence. Examples of messages that require this current position data are, for example, "Please gather here",
There may be a message such as "I have an accident. Please come soon."

If the message requires the current position data, the GP connected to the display device
The current position data is determined by the S receiver (step 19).
0), the current position data is added to the message data by the transmission / reception unit and transmitted. However, in the case of this example, since the GPS receiver is not provided on the center 1 side (since it does not move), the center side does not transmit the current position data to the terminal side.

If it is determined in step 189 that the message does not require the current position data,
It is determined whether the message requires the coordinate data of the target position (step 191). In this case,
When the sentence is a fixed sentence, the system controller of the display device 100 automatically performs the sentence. When the sentence is a free sentence, the sentence is selected by an input operation. As a message that requires this current position data, for example, "Please gather at point 1",
There may be a message that needs to notify the target position, such as "the target point is as shown".

If the message requires the target position data, the coordinate data of the target position selected on the display device is determined (step 192). As the determination process at this time, for example, it is conceivable to automatically determine the coordinates of a point set in advance as a destination or the like. Alternatively, coordinate data such as latitude and longitude may be directly input.

When the message to be transmitted and the coordinate data (current position data or target position data) are prepared in this way, the display device supplies the message data and the coordinate data to the transmission / reception unit and sends the message data and the coordinate data to the base station 5. Wireless transmission (step 193).

In the case of a message that does not require any coordinate data, only the message data is supplied from the display device to the transmitting / receiving unit, and is transmitted by radio to the base station 5 (step 194). In any case, the message to be transmitted is transmitted with the individual identification number of the transmission source, the individual identification number of the transmission destination, and the system identification number.

Then, the base station 5 determines the destination based on the individual identification number given to the transmitted data,
While transmitting data notifying that a message has been transmitted to the corresponding destination, the memory 6 in the communication control unit 6 until the message receiving process is performed at the destination.
Message data (including assigned coordinate data) in a
Is stored.

Next, the message receiving process will be described. First, when there is a received message to the corresponding terminal or center (that is, when data indicating that a message is transmitted from the base station 5 is received),
A mark P6 indicating that there is a received message is displayed in the upper corner of the screen of the display panel of the display device of this terminal or center, as shown in FIG. This display
The processing is performed until the message data reception processing is performed.

When the reception key is operated in a state where the display indicating that the received message is present is performed, the processing of the flowchart shown in FIG. 30 is performed. That is, first, the base station 5
To send the data of the list of received messages to
As shown in FIG. 32, a list of received messages is displayed (step 201). In this list, only the sender's identification name and the first four characters of the message are displayed.
In addition, "Please select" is displayed in characters.

Then, from the received messages displayed in a list by operating the cursor key 120 and the enter key 121, a message for displaying the full text is selected (step 202). At this time, it is determined whether or not coordinate data is added to the selected received message (step 20).
3) If there is no coordinate data, only the message is displayed in full text as shown in FIG. If coordinate data is added to the selected received message, the received message is displayed in full text with some identification mark added to the corresponding coordinate position in the road map displayed on the display panel. , So that the message and the position indicated by the message can be determined (step 20).
5).

When the stop key is operated, the display of this message is stopped (step 206).

As described above, the message can be transmitted by the system of this embodiment, so that the message can be easily transmitted between the mobile unit and the center or between the mobile units, and the contact can be easily established. In this case, by using the position display function provided in the system of the present example and adding and transmitting coordinate data to the message, the position can be accurately and easily notified to the other party.

FIG. 34 is a flow chart showing an example of the use of the system of this embodiment.
An example in which the present invention is applied to a delivery operation is shown. When a customer requests delivery of a package, the center side instructs a vehicle (truck, motorcycle, etc.) on a pickup location and a delivery location (step 211). At this time, the center determines the vehicle running at the position closest to the pickup location in the center position mode, and sends a message to the corresponding vehicle. After receiving this message, the vehicle goes to the point on the displayed map and collects the cargo (step 21).
2) After delivery to the designated location (step 21)
3) Return to the office (step 214).

In the case of a carrier whose collection / delivery route is set in advance, as shown in the flowchart of FIG.
1) Delivery is performed (Step 222), and when a call for a pickup request from a customer (Step 223) or a redelivery request from a customer who has been away (Step 224) is received at the center,
After instructing the corresponding pickup and delivery by the message, the user is returned to the office (step 225).

Since the center can manage each vehicle in this manner, the use efficiency of each vehicle is improved and the running record of each vehicle can be easily obtained. In addition, the driver of each vehicle does not need to directly reply to the message from the center by voice or the like, but only has to perform the message receiving process at any time, so it is necessary to perform the receiving operation during driving etc. It is preferable from the viewpoint of safety.

The system according to the present embodiment is preferably applied to a case where it is necessary to manage a plurality of vehicles (moving bodies) such as a taxi company in addition to such a carrier.

In the above embodiment, the communication is performed via the base station. However, the communication may be performed directly between the center and each terminal without using the base station. Or,
A wide area communication system such as a wireless telephone line may be used.

In the above embodiment, the center is fixed. However, the center may be mounted on a moving body such as a vehicle. In this case, a GPS receiver may be provided on the center side to notify each terminal of the position of the center.

FIG. 36 is a diagram showing an example in which the center 40 is mounted on a mobile body and direct wireless communication is performed between the terminals 50 and 60. Here, the center 40 and the terminal 50 have exactly the same configuration. And one unit is used as a center for convenience. That is, the center 40 and the terminal 50 are connected to transmitting and receiving antennas 41 and 51, transmitting and receiving units 42 and 52, converters 43 and 53, GPS receivers 44 and 54, GPS receiving antennas 45 and 55, Devices 46 and 56 are provided. The terminal 60 includes a transmitting / receiving antenna 61, a transmitting / receiving unit 62, a converter 63, and a GPS receiver 64.
And a GPS receiving antenna 65 (there is no display device).

By configuring the system in this way, the center 40 and the terminal 50 can transmit a message while confirming the mutual positions. Further, the position of the terminal 60 can be confirmed at the center 40 or the terminal 50. Such a system for performing direct communication is suitable for, for example, traveling with a plurality of vehicles such as touring. FIG. 37 is a flowchart showing an example of a usage example in this case. After gathering at a meeting place (step 231), an intermediate point can be set and gathered at this intermediate point (step 232). In this case, the center 40 or the terminal device 50 functions as a navigation device by displaying the position of the own vehicle and the destination on the display device, so that the meeting place can be easily searched.

When any of the cars gets lost on the way (step 233), a temporary gathering place can be determined by determining a temporary gathering place and transmitting it as a message (step 234), and the destination can be reached. Can be reached (step 235).

By mounting the center on the moving body in this way, the applicable range of this system is expanded.

In the above embodiment, the current position is measured by using the GPS. However, it is a matter of course that a positioning device that detects the current position by another method may be used.

In the above embodiment, the display device displays a map based on the data stored in the memory card. However, the map data may be obtained using another storage medium.

[0116]

According to the first aspect of the present invention, the data of the current position of each terminal is transmitted to the center by transmitting the detected position data transmission request signal from the center to each terminal. Even if there is a terminal that cannot know the current position of the terminal and does not return the position data, the position based on the position data received in the past is displayed. Even in the case of (body), the approximate position can be grasped on the center side.

[0117]

[0118]

[0119]

[0120]

[0121]

According to the second aspect of the present invention, the identification name given to each terminal is displayed near the display position of each terminal on the display map, so which terminal (mobile) is determined. It will be easy to understand.

[0123]

According to the third aspect of the present invention, when a position is displayed based on the past position data, the position is displayed in a manner different from other position displays, so that the display by the past position data can be easily performed. You will understand.

According to the fourth aspect of the present invention, the trajectory of each terminal moved on the display map can be displayed, so that the moving state of each terminal (moving body) can be grasped.

[0126]

[0127]

According to the fifth aspect of the present invention, a message can be transmitted between a terminal and a center, so that the system of the present invention can be used as a means for transmitting a message.

Further, according to the sixth aspect, a message selected from messages prepared in advance at the center or the terminal can be transmitted, so that the message can be easily transmitted.

Further, according to the seventh aspect, the message can be transmitted with the position data added thereto, so that the message or the like whose position is designated can be easily transmitted.

According to the eighth aspect, the current position data detected by the current position detecting means is added to the message and transmitted, so that the current position and the message are transmitted at the same time, and the location where the message is transmitted can be determined. Become like

According to the ninth aspect, by transmitting the position data of the target point or the passing point to the message and transmitting the message, the transmission of the message designating the target point or the passing point can be simplified.

According to the tenth aspect, the center is provided with the current position detecting means so that the position data of the center can be transmitted to each terminal, so that the center when the center is mounted on the moving body is provided. Can be determined on each terminal side.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram showing an embodiment of the present invention.

FIG. 2 is a plan view showing a display device according to one embodiment.

FIG. 3 is a flowchart illustrating an initial setting process according to an embodiment;

FIG. 4 is an explanatory diagram showing a display example (center position setting screen) according to one embodiment.

FIG. 5 is an explanatory diagram showing a display example (moving object selection screen to be monitored) according to one embodiment;

FIG. 6 is an explanatory diagram showing a display example (mobile station setting screen) according to one embodiment.

FIG. 7 is a display example (monitor interval setting screen) according to one embodiment.
FIG.

FIG. 8 is a flowchart illustrating a monitoring setting process according to an embodiment.

FIG. 9 is an explanatory diagram showing a display example (monitoring screen) according to one embodiment.

FIG. 10 is a flowchart showing processing in a position confirmation mode according to one embodiment.

FIG. 11 is an explanatory view showing a display example (position confirmation mode selection screen) according to one embodiment.

FIG. 12 is an explanatory diagram illustrating a display example (a screen displaying a selected moving object as a center) according to an embodiment;

FIG. 13 is a flowchart illustrating processing in a center position mode according to an embodiment.

FIG. 14 is a display example (center position setting screen) according to one embodiment.
FIG.

FIG. 15 is an explanatory diagram showing a display example (screen displaying a list of stations near the center position) according to one embodiment;

FIG. 16 is a flowchart illustrating a trajectory mode process according to one embodiment.

FIG. 17 is an explanatory diagram showing a display example (trajectory mode setting screen) according to one embodiment.

FIG. 18 is a flowchart illustrating processing in a navigation mode according to one embodiment.

FIG. 19 is an explanatory diagram showing a display example (navigation mode setting screen) according to one embodiment.

FIG. 20 is an explanatory diagram illustrating a display example (a trajectory selection screen in a navigation mode) according to an embodiment;

FIG. 21 is an explanatory diagram showing a display example (selection screen for displaying individual information) according to one embodiment.

FIG. 22 is a display example (individual information display screen) according to one embodiment.
FIG.

FIG. 23 is a display example (screen at the time of display switching) according to one embodiment.
FIG.

FIG. 24 is an explanatory diagram showing a display example (point list display screen) according to one embodiment.

FIG. 25 is a flowchart showing a message transmission / reception process according to one embodiment.

FIG. 26 is a flowchart showing a message transmission process according to one embodiment.

FIG. 27 is an explanatory diagram illustrating a display example (message transmission destination selection screen) according to one embodiment;

FIG. 28 is an explanatory diagram illustrating a display example (fixed message list display screen) according to one embodiment;

FIG. 29 is an explanatory diagram showing a display example (free message input screen) according to one embodiment.

FIG. 30 is a flowchart showing a message receiving process according to one embodiment.

FIG. 31 is an explanatory diagram illustrating a display example (screen having a received message) according to one embodiment;

FIG. 32 is an explanatory diagram showing a display example (received message list display screen) according to one embodiment.

FIG. 33 is an explanatory diagram showing a display example (received message display screen) according to one embodiment;

FIG. 34 is a flowchart illustrating an example of a collection / delivery operation to which the communication system according to the embodiment is applied.

FIG. 35 is a flowchart illustrating another example of a collection / delivery operation to which the communication system according to the embodiment is applied;

FIG. 36 is a system configuration diagram showing another embodiment of the present invention.

FIG. 37 is a flowchart illustrating an example in which a communication system according to another embodiment is applied.

[Explanation of symbols]

1,40 center 2,13,23,33,43,53,63 converter 3,12,22,32,42,52,62 transmitting / receiving unit 4,11,21,31,41,51,61 transmitting / receiving antenna 5 Base station 6 Communication control unit 10, 20, 30, 50, 60 Terminal 14, 24, 34, 44, 54, 64 GPS receiver 15, 25, 35, 45, 55, 65 GPS receiving antenna 17, 27, 37 Vehicle state detection circuit 36, 46, 56, 100 Display device 101 Display panel 106, 107 Card slot 201 Program data card 202 Map data card

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-4-229397 (JP, A) JP-A-5-22208 (JP, A) JP-A-4-7919 (JP, A) JP-A-5-208 268134 (JP, A) JP-A-4-319990 (JP, A) JP-A-4-257999 (JP, A) JP-A-5-40899 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04B 7/26 H04Q 7/00-7/38 G08G 1/00-1/16

Claims (10)

(57) [Claims] 1. A communication system comprising: a center having communication means capable of transmitting and receiving data; and a plurality of terminals having communication means capable of transmitting and receiving data to and from the center. Is provided with a current position detecting means, the center is provided with a position displaying means, a map data storing means and a position data storing means of each terminal, and the center transmits a detected position data transmission request signal to each of the terminals. By the transmission, the position data detected by the current position detecting means of the corresponding terminal is transmitted to the center, and the current position is displayed on the map based on the map data by the position display means of the center. By transmitting the position data transmission request signal, the display position of the terminal that does not return the position data is determined based on the past position data stored in the position data storage unit. Communication system 2. The communication system according to claim 1, wherein the identifier assigned to each terminal is displayed near a display position of each terminal on a display map. 3. The communication system according to claim 1, wherein a position display based on past position data is displayed in a manner different from other position displays. 4. The communication system according to claim 1, further comprising a storage unit for storing the position data received by the center, wherein the storage unit stores the past position data and the current position data of each terminal. And a communication system that displays a trajectory of each terminal moving on a display map based on the information. 5. The communication system according to claim 1, wherein at least one of said plurality of terminals and said center are provided with a message display means, A communication system capable of transmitting a message between a terminal having a display means and a center. 6. The communication system according to claim 5, wherein the center or the terminal transmits a message selected from messages prepared in advance. 7. The communication system according to claim 5, wherein a position data is added to the message to be transmitted, and a position corresponding to a position display means provided on the receiving side is displayed. 8. The communication system according to claim 7, wherein the position data added to the message and transmitted is the current position data detected by the current position detection means. 9. The communication system according to claim 7, wherein the position data added to the message and transmitted is position data of a target point or a passing point. 10. The communication system according to claim 1, wherein said center is provided with a current position detecting means, and said terminal transmits position data of said center.