JPS59175229A - State display system of radio taxi - Google Patents

Abstract

PURPOSE:To grasp the states of all taxis easily by transmitting digital signals which indicate the states and taxi numbers of respective taxis from the taxis every time operation states, etc., change, and displaying the taxi numbers at the base station in different colors according to the respective states. CONSTITUTION:A signal generator 14 installed in a taxi when receiving an operation state signal (free run, charged run, etc.) by a taxi meter or a state signal by the operation of each switch (power source switch, emergency switch, etc.) generates a digital signal indicating the state and taxi number and transmits them to the base station from a mobile radio equipment 16. The base station receives the signal from the mobile radio equipment 16 and displays respective taxi numbers on a CRT display in different colors corresponding to respective states. Thus, the states of all taxis are grasped easily and securely.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wireless taxi status display system that can efficiently perform wireless taxi dispatch operations.

Traditionally, wireless taxi dispatch services involve making a voice call from a base station communication center to multiple taxis scattered within a predetermined area, and issuing dispatch instructions based on the voice responses from empty vehicles. Ta. In this case, if responses were received from multiple vacant vehicles at the same time, dispatch staff at the base station would have to distinguish between multiple vehicle numbers, and if the number of responses increased, it would be difficult to correctly hear the vehicle numbers.

Generally, wireless taxis are in one of the following situations: empty, rented, paid, forwarded, closed, or charged, but when communicating only by voice between the taxi and the base station, it takes a relatively short time. It was almost impossible to constantly grasp the status of each taxi, which changed at regular intervals. Furthermore, in the event of an emergency, voice communication may not be possible.
In some cases, the base station was unable to detect the situation.

The present invention was made in view of the actual situation of the radio taxi dispatch service, and its purpose is to enable one base station to constantly grasp the status of all taxis within a predetermined area. An object of the present invention is to provide a wireless taxi status display system that enables efficient dispatching operations.

In order to achieve this purpose, the present invention provides a signal generator in each taxi, and generates a digital signal representing each taxi's status and car number each time its operating status changes.
The signal is received by the base station, processed by the signal processing device of the base station, and the vehicle number is displayed on the CRT display in different colors according to each situation.

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic diagram of a wireless taxi status display system according to the present invention. Mobile station 1 representing each wireless taxi
o includes a taximeter 12, a signal generator 14, a radio 16, a microphone 18, and an antenna 20. The taximeter 12 supplies a signal generator 14 with operating status signals that vary depending on its operating position. The microphone 18 still supplies a call status signal indicating whether or not a call is in progress to the signal generator 14 by operating the press button. The signal generator 14 converts various situation signals and the car number set for each taxi into a digital signal in a predetermined code format, and supplies the digital signal to the radio 16 as a modulated input. The signal modulated by the radio 16 is transmitted via the antenna 20 〇 On the other hand, the base station 22 that issues the dispatch command has an antenna 24 , a radio 26 , a remote controller 28 , a microphone 30 , and a signal processing device 32 , and a CRT display 34. Signals transmitted from mobile station 10 are received at antenna 24 and provided to remote controller 28 via radio 26 . The remote controller 28 separates a data signal consisting of various status signals and a vehicle number signal from a voice signal, and supplies the data signal to a signal processing device 32 . The CRT display 34 displays the car number of each taxi in different colors depending on the situation, and also displays the car number of the taxi in the conversation situation, based on the control output from the signal processing device 32.

FIG. 2 shows the configuration of the mobile station 10 shown in FIG. 1 in more detail. In this figure, the same components as in FIG. 1 are given the same reference numerals. The microcomputer 40 determines whether the taxi meter 12 is empty, has a rental taxi, is forwarding,
The microphone 18 also receives and receives signals indicating the status of premiums, etc.
The receiver receives a signal indicating the status of the call from the receiver. Further, in the microcomputer 40, a different car number for each taxi is preset by a car number setting switch SWl.

First, when power switch SW2 is turned on, DC 13
．． An 8V in-vehicle battery power supply is supplied to the microcomputer 40 via a stabilizing circuit 42 and to a radio power supply switch 44.
The signal is supplied to the radio 16 via the mobile station 10, and the mobile station 10 becomes operational. The Toki microcomputer 40 generates an operating status signal and a vehicle number signal based on the current position of the meter 12 in an appropriate digital code format, such as an NRZ equal length code format. Next, when the meter 12 is operated by raising or lowering it, an operating status signal corresponding to the position is generated, and the microcomputer 40
generates an operating status signal and a vehicle number signal in NRZ equal length code format corresponding to the meter position after operation. If the press button of the microphone 18 is still pressed, the microcomputer 40 generates a call status signal and a car number signal. Similarly, when the emergency switch SW3 or optional registration switch SW4 is turned on, the microcomputer 40
Generates a status signal indicating the occurrence of an emergency situation or a status signal and vehicle number signal at the time of voluntary registration. Furthermore, when the power switch SW2 is turned off, the microcomputer 40
Generates closed status signal and car number signal. Various status signals and vehicle number signals in the NRZ equal-length code format generated by the microcomputer 40 are supplied to the radio 16 as modulation inputs via the bandpass filter 46 and transmitted from the antenna 20. Note that the switch SW5 is a changeover switch, and when the press button on the microphone is not pressed, it is placed on the side that transmits the digital signal output from the microcomputer 40 to the radio device 16, and the press button on the microphone 18 is pressed. In this case, after the call status signal and car number signal are sent, the system is switched to the side that supplies the audio input from the microphone 18 to the radio 16 as a modulation input. At this time, the radio device 16 is switched from a receiving state to a transmitting state by a press input.

The switch SW6 forms a signal path for a synchronization signal sent from the microcomputer 40- to the radio 16 when the press button of the microphone 18 is pressed.

FIG. 3 shows the configuration of the signal processing device 32 shown in FIG. 1 in more detail. In this figure, the same components as in FIG. 1 are given the same reference numerals. Demodulator 5 of modem unit 50, a data signal line consisting of a status signal and a car number signal, separated by remote controller 28 of FIG.
2. is supplied to. The demodulator 52 demodulates the data signal under the synchronization signal supplied from the synchronization generator 54.

The demodulated data signal is supplied to the microcomputer 56 and processed. The microcomputer 56 is
It processes the situation signal and car number signal, generates a signal for displaying each car number in different colors according to each situation, and supplies it to the display control unit 58. The CRT display 34 is controlled by the city control output from the control unit 58 and displays each car number in different colors according to various conditions. Note that the keyboard 6o and printer 62 are marked as necessary, and can be used to input key data and record the car number and various situations.

FIG. 4 shows an example of a display method in the display system of the present invention.

The figure shows a case where there are 50 wireless taxis, from 1 to 50.
The numbers up to represent the car number of each taxi. Car numbers are displayed in different colors according to the situation that changes from time to time. For example, empty cars are displayed in green, paid cars in red, forwarded cars in yellow, closed stations in blue, emergency cars in purple, premiums in pink, and payments in white. .

Furthermore, the numbers of cars in call status are displayed together in one place along with their operating status (dynamics). In this case, the car number that last entered the call status is displayed at the top. The number of a car in an emergency situation will also be displayed elsewhere.

As is clear from the above description, according to the present invention, all vehicle numbers are displayed on the CRT display of the base station in different colors according to changing conditions, so that the dispatch staff at the base station can always keep track of all the vehicles. The situation can be grasped and vehicle dispatch operations can be carried out efficiently.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a wireless taxi status display system according to the present invention, FIG. 2 is a configuration example of the mobile station shown in FIG. 1, and FIG.
FIG. 4 is a diagram illustrating an example of a display method in a display system according to the present invention. 10...Mobile station 12...Taxi meter 14...Signal generator 16.26...Radio device 1
8.30...Microphone 20.24...Antenna 2
2...Base station 28...Remote controller 32.
...Signal processing device 34...CRT display applicant: Alps Transportation Co., Ltd., applicant: Alps Jidosha Co., Ltd., applicant: Matsumoto Tsuyo Tokki Co., Ltd., agent: patent attorney: Yu Mori Shimo Hajime Figure 1 Figure 2 Figure 4 =146 3 Figure 7 --J

Claims (1)

[Claims] (],) Each of a plurality of wireless taxis is equipped with a microphone, a taxi meter, various switches, a signal generator, a radio, and an antenna, and one base station is equipped with an antenna, a radio a taxi, a signal processing device, and a CRT display; a different car number for each taxi is set in advance in the signal generating device; generates an operating status signal representing each situation according to the operation; generates a call status signal according to the operation of the press button on the microphone of the taxi; generates an operation status signal according to the operation of the various switches; generate a situation signal representing each situation; when any of these situation signals is generated, the signal generating device converts the signal representing the respective situation and vehicle number into a digital signal in a predetermined code format; generate a modulated wave of this digital signal; transmit the modulated wave of this digital signal toward the radio of the taxi and the antenna base station; receive the transmitted signal by the antenna and radio of the base station; The received signal is demodulated and processed by the signal processing device, and each car number is sent to the CRT according to the respective situation.
A wireless taxi status display system characterized by displaying information in different colors on a display. (2) The situation display system according to claim 1, wherein the car numbers of taxis in use are displayed all at once on the CRT display. (3) The situation display system according to claim 1, wherein one of the various switches is an emergency switch that is operated when an emergency situation occurs. (4) The situation display system according to claim 3, wherein the car number of the taxi in which the emergency switch has been operated is displayed in a separate location on the CRT display.