JPH0320000B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a device that automatically collects and displays the dynamics of a large number of mobile stations (for example, wireless taxis) managed by a company on a CRT at a base station. The present invention relates to a vehicle position display device that displays the current position of each taxi using symbols indicating the direction and distance from a specific point.

``Conventional technology'' In taxi operations, it is necessary to know where dozens or more vehicles are currently doing and what they are doing over a long period of time, from early morning until late at night. Furthermore, when a customer requests a ride, it is desirable to quickly find a vacant car near the customer and quickly issue an appropriate vehicle allocation order.

Conventionally, vehicle dynamic display devices for this type of taxi display the vehicle numbers of all vehicles on the CRT.
The dynamics were displayed by coloring the vehicle number. For example, empty cars are green, paid cars are red, forwarded cars are yellow, closed stations are blue, emergencies are in a purple frame (back color), premiums are in purple, etc.

``Problem to be Solved by the Invention'' However, with these dynamic displays, it is not possible to grasp the direction and distance of a mobile station from a specific point (for example, the location of a base station or the center of a city area).

An object of the present invention is to provide a device that can easily determine the direction and distance of a mobile station from a specific point.

"Means for Solving the Problems" The present invention is a vehicle position display device having a mobile station 1 and a base station 2, wherein the mobile station 1 is mounted on a vehicle and has a signal processing device 8.
, a radio 9 , a position data setting means 3 , and a vehicle number setting means 6 , and a signal processing device 8 divides the direction and distance into multiple stages from the position data setting means 3 around a specific position. The position data and the car number data from the car number setting means 6 are input, and are transmitted together with various data to the base station 2 by the radio 9. The base station 2 has the radio 12, Signal processing device 15
and a display means 16, the radio 12 receives the position, vehicle number, and various data transmitted from the mobile station 1 and inputs it to the signal processing device 15, which processes the data. This is a vehicle position display device that displays information about the mobile station 1 on a display device 16, and in which directions and distances are each displayed using symbols divided into a plurality of stages.

"Operation" At the mobile station, in order to notify the base station of the direction and distance of the current position, the driver operates the position data setting means to send distance data indicating the direction and distance of the current position to the signal processing device. In addition, each time the taxi meter is operated, dynamic signals such as empty cars, rental cars, and forwarding are sent to the signal processing device. The car number setting means always outputs preset car number data. These data are sent to the base station by polling from the base station.

Next, by operating the base station's keyboard, a polling signal for data collection is sent to the mobile station via the signal processing device, remote controller, radio, and antenna. When this polling signal is received by the mobile station's antenna and radio, dynamic data is transferred from the mobile station to the base station via the signal processing device, radio, and antenna. The transferred signal is received by an antenna and provided to a remote controller via a radio. The remote controller separates the data signal and the audio signal and provides the data signal to the signal processing device. The signal processing device demodulates and processes the data signal, and the signal is sent to the display means via the display control circuit to display the direction and distance from a specific point of the mobile station and other dynamic information.

"Example" Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 shows a first embodiment in which a mobile station responds to a polling signal from a base station.
In FIG. 1, 1 is a mobile station and 2 is a base station.

The mobile station 1 includes a position data setting means 3, a microphone 5, a vehicle number setting means 6, an emergency signal generation circuit 7, a signal processing device 8, a radio device 9, and an antenna 10, and is mounted on a taxi. 4 is a taximeter. The position data setting means 3
In the case of manual setting, the driver presses push buttons 3a, 3b, 3c, and 3 that indicate the current position direction from a specific point.
By pressing one of buttons d, 3e, 3f, 3g, and 3h and one of push buttons 3i, 3j, and 3k indicating the distance from a specific point, a signal indicating the direction and distance is output. For example, directions are north, northeast, east, southeast,
Eight directions: south, southwest, west, and northwest. Distances within 10 km are considered near, 10 to 20 km are medium, and 20 km or more are far. Also,
In the case of automatic setting, a sign post (small transmitter) is set at a specific point and at a predetermined distance from the specific point, and the location data setting means 3 built into the mobile station 1 receives the sign post of the current location to identify the location. A position signal indicating the direction and distance of the sign post from a point is automatically output. The taximeter 4
outputs dynamic signals such as empty cars, rental runs, and forwarding to a signal processing device 8 consisting of a control CPU. This signal processing device 8 receives position data from the position data setting means 3, dynamic signals from the taximeter 4, audio signals from the microphone 5, car number data from the car number setting means 6, and emergency signal generation circuit 7. Emergency data and the like are processed and transmitted to the base station 2 via the radio device 9 and antenna 10. Further, the signal processing device 8 receives and processes a polling signal from the base station 2.

The base station 2 that issues a vehicle dispatch command includes an antenna 11;
It is composed of a radio 12, a remote controller 13, a microphone 14, a signal processing device 15, a display means 16 consisting of a CRT, a keyboard 17, and a printer 18.
The signal processing device 15 includes a demodulator 20 which demodulates the data signal separated from the audio signal under the synchronization signal supplied from the synchronization signal generator 19 by the remote controller 13, and a demodulator 20 which demodulates the data signal separated from the audio signal. It is constituted by a control CPU 21 for processing, and a display control circuit 22 for processing the dynamic data of each vehicle processed by the control CPU 21 for display and supplying it to the display means 16.

Next, the operation of the device according to the present invention will be explained.

In the mobile station 1, the driver uses the position data setting means 3 to inform the base station 2 of the direction and distance of the current position.
any of the push buttons 3a to 3h, and the push buttons 3i, 3
Press either j or 3k. Then, position data indicating the direction and distance of the current position is sent to the signal processing device 8.
sent to. Furthermore, each time the taximeter 4 is operated, dynamic signals such as empty, rental, and forwarding are sent to the signal processing device 8. Car number setting means 6 always outputs preset car number data. These data are sent to the base station 2 by polling from the base station 2, but when an emergency situation such as an accident or robbery occurs, an emergency signal is sent to the base station even without polling by operating the emergency signal generation circuit 7. Sent to 2.

Next, operate the keyboard 17 of the base station 2,
Signal processing device 15, remote controller 13, radio device 1
2. Emit a polling signal for data collection to the mobile station 1 via the antenna 11. When this polling signal is received by the antenna 10 and radio device 9 of the mobile station 1, direction and distance data and dynamic data are transmitted from the mobile station 1 to the base station 2 via the signal processing device 8, radio device 9, and antenna 10. be transferred. The transferred signal is received by the antenna 11 and transmitted to the radio device 1.
2 to the remote controller 13. Remote controller 13 separates the data signal and audio signal and provides the data signal to signal processing device 15 . The signal processing device 15 demodulates the data signal and uses it for control.
The signal is supplied to the CPU 21, and the signal processed by the control CPU 21 passes through the display control circuit 22 to the display means 1.
6, and displays the dynamic state as shown in Figure 2. Specifically, Figure 2 shows a case where there are 50 taxis, and the numbers from 1 to 50 represent the car number of each taxi. This car number is displayed in different colors according to changes in the dynamics of the mobile station 1. For example, empty cars are displayed in green, paid cars in red, forwarded cars in yellow, closed stations in blue, emergencies in a purple frame (back color), and premiums in purple. Also, for the arrow symbol 23 next to the car number, the direction of the arrow indicates the current direction of the taxi from a specific point.When there is one arrow, it is short distance, when there are two arrows, it is medium distance, and when there are three arrows, it is medium distance. is assumed to be a long distance, and therefore, in order to search for vacant cars in a certain area, it is only necessary to search by the color of the car number (green) and the direction and number of the arrow marks 23. Additionally, vehicle numbers in call status are displayed together in one place along with their dynamics. In this case, the car number that entered the call status last is displayed at the top. Vehicle numbers in emergency situations are also displayed in a separate location. Furthermore,
Year, month, day, time, etc. are also displayed.

Although the device shown in FIG. 1 has a function in which the mobile station 1 responds when polling is received from the base station 2, the device shown in FIG.
It is also possible for the mobile station 1 to spontaneously transmit the vehicle number, dynamic data, voice, position direction distance data, etc. to the base station 2. In other words, mutual communication is possible.

Next, Fig. 3 shows a case in which dynamic data signals, etc., are automatically (spontaneously) transmitted to the base station when the dynamics of the mobile station changes, that is, the device shown in Fig. 1 is modified. This shows a second embodiment.
In FIG. 3, the mobile station 1 is equipped with a position data setting means 3, a taximeter 4, a microphone 5, a car number setting means 6, an emergency signal generation circuit 7, and an optional registration switch 26, as in FIG. is coupled to the signal generator 8a, and the signal generator 8a
is further coupled to an antenna 10 via a radio 9. Further, in the base station 2, a remote controller 13 coupled to a microphone 14 is coupled to an antenna 11 via a radio 12, and a receiving terminal unit 24 and a data processing unit 25 of a signal processing device 15 are connected to each other.
Vehicle status display means (CRT display) through
16.

In such a configuration, the mobile station 1 communicates with the taximeter each time the dynamics (rental travel, premium, empty vehicle, forwarding) changes.
Data on the vehicle number, movement, direction of movement, and distance are transmitted to the signal generator 8a, the radio 9, and the antenna 1.
0 to the base station 2. In addition, mobile station 1
Similarly, when the power is turned on and when the optional registration switch 26 is operated, the vehicle number, current movement, arbitrary direction, and distance data are transmitted.

Furthermore, position data setting means 3 and audio microphone 5
Every time you press , press dynamics, car number signal, and location data are transmitted. When an emergency situation (such as a taxi robbery) occurs in the mobile station 1, when the emergency signal generation circuit 7 is operated, the emergency situation, car number signal, and position data are similarly transmitted.

Furthermore, in the base station 2, the signal sent from the mobile station 1 is received by the radio 12 via the antenna 11, and is processed by the signal processing device 15 via the remote controller 13. Information such as position/direction distance data, as well as the date and time of the reception date, are displayed on the vehicle status display means 17. When the voice microphone 5 is pressed or the emergency signal generation circuit 7 is operated on the mobile station 1, the car number of the other party's station in a normal voice call or the car number of the emergency vehicle is displayed.

In the above-mentioned embodiment, arrows were used as symbols to indicate directions, and distances were expressed by the number of arrows. However, it is not limited to this. For example, the direction may be represented by an arrow, and the distance may be represented by the length of the arrow.

"Effects of the Invention" Since the present invention is configured as described above, it is possible to intuitively inform the current location of a mobile station such as a taxi in terms of both direction and distance, and it is also possible to effectively use the CRT screen as a display means. This can be used to display more dynamics within a given area.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of a vehicle position display device according to the present invention, FIG. 2 is a front view of a display screen, and FIG. 3 is a block diagram showing a second embodiment of the present invention. 1...Mobile station (taxi), 2...Base station, 3
...Position data setting means, 3a to 3h...Push button indicating direction, 3i, 3j, 3k...Push button indicating distance, 4...Taximeter, 5...Microphone, 6...
...Vehicle number setting means, 7...Emergency signal generation circuit, 8...
...Signal processing device, 9...Radio device, 10...Antenna, 11...Antenna, 12...Radio device, 13...
...Remote controller, 14...Microphone, 15...Signal processing device, 16...Display means consisting of CRT, 17
... Keyboard, 18 ... Printer, 19 ... Synchronization signal generator, 20 ... Demodulator, 21 ... For control
CPU, 22... Display control circuit, 23... Symbol indicating direction.

Claims (1)

[Claims] 1. A vehicle position display device having a mobile station 1 and a base station 2, wherein the mobile station 1 is mounted on a vehicle, and a signal processing device 8
, a radio device 9, a position data setting means 3, and a vehicle number setting means 6, and a signal processing means 8 divides the direction and distance from the position data setting means 3 into a plurality of stages from the specific position. The position data and the car number data from the car number setting means 6 are input, and are transmitted together with various data to the base station 2 by the radio 9. The base station 2 has the radio 12, Signal processing device 15
and a display means 16, the radio 12 receives the position, vehicle number, and various data transmitted from the mobile station 1 and inputs it to the signal processing device 15, which processes the data. A vehicle position display device that displays information about a mobile station 1 on a display device 16, in which directions and distances are each displayed using symbols divided into a plurality of stages.