JPS61293035A - Display system for empty car - Google Patents

Abstract

PURPOSE:To improve the taxi distribution processing of an AVM system by comparing area information with area code information and displaying the station number of a coincident mobile station in a different color. CONSTITUTION:An indication is voiced through a microphone 3 by operating the keyboard 2 of a base station 1 and then when a mobile station needs to receive a taxi distribution command, a polling signal is sent out of the base station to the mobile station with a registration switch. The mobile station whose registration switch is pressed transmits an answer signal to the base station with a time slot. This answer signal is received by a receiver 8 and converted into a digital signal, which is supplied to a data detecting means 10 to obtain received data. The area information from the keyboard 2 is inputted to an area comparing means 12 through a storage means 11 together with the output signal of the data detecting means 10 and when the area code and area information coincide with each other, the number of the mobile station is displayed in the different on a display device 13.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention uses voice to request a response from a mobile station such as a wireless taxi that wishes to register a dispatch order, and displays the station number of the mobile station that responded at a base station. A simplified AVM system (Automatic VehjcleMonit)
The present invention relates to an empty vehicle display method in a vehicle location, etc. automatic display system.

[Summary of the present invention] An AVM system that requests a response from a mobile station desiring to register a dispatch order by voice is a system that divides the business range of the mobile station into a plurality of districts in advance and places a sign post in each district. A transmitter is installed that constantly transmits weak radio waves, and first, a voice command is given to the base station saying, ``Please proceed in the direction of ○○ (empty cars).'' When the voice press switch is released, the base station sends a polling signal to the mobile station. 6 The mobile station that wants to respond presses the "registration switch" and the time slot (unique A response signal is sent back from the mobile station to the base station according to the time slot or random slot).

At this time, the mobile station can respond regardless of whether it is inside or outside the sign post area (range where the radio waves from the II weak radio wave transmitter reach). The base station that receives this response signal displays the station number of the mobile station that responded.

In this invention, in such an AVM system, it is checked whether the district code in the response signal from the mobile station matches the district specified on the keyboard as [○○ direction, plane j], and the matching station number (vehicle number) is checked. ) are displayed in different colors.

[Example] The figure shows the configuration of a base station 1 according to the present invention.

Now, operate the keyboard 2 of this base station 1 and enter "○○" in advance.
Operate the ``direction'' key and give the voice instruction from microphone 3, ``00 direction (empty car) please''. This voice is transmitted via the transmitter 4 and the transmitting antenna 5 to a mobile station (not shown). At this time, the mobile station presses the "registration switch" if it wishes to receive a dispatch command.

Next, when the microphone 3 is turned off at the base station 1, a polling signal is transmitted from the polling signal generating means 6 to the mobile station from the transmitting antenna 5 via the transmitter 4. . Receive this polling signal and
The mobile station that presses the "registration switch" transmits a response signal to the base station with a time slot. This response signal is composed of a prefix bit synchronization signal, a word synchronization (frame synchronization) signal, a dynamic code (vacant vehicle, etc.), a mobile station code (vehicle number code), a district code, a correction bit, etc. This response signal is received by the receiver 8 via the receiving antenna 7. The output signal of the receiver 8 is demodulated by the demodulating means 9 and becomes a digital signal. This digital signal is subjected to processing such as data detection and error correction by the data detection means IO to obtain received data. On the other hand, the district information of the [○○ plane] from the keyboard 2 is input to the district comparison means 12 together with the output signal of the data detection means 10 via the storage means 11. The area comparison means 12 detects whether the area code in the response signal of the mobile station matches the area information stored in the storage means 11, and if they match, displays the mobile station number on the display device 13 in blue, for example. For mobile stations that do not match or have no district code information, the mobile station number is displayed in a different color on the display device 13.

[Effects of the Invention] As described above, in this invention, the district information input during polling is compared with the district code information j- in the response signal from the mobile station based on the polling, and the matching mobile station (actually Since the station numbers of mobile stations (mobile stations located in that area) are displayed in a different color from those of mobile stations that do not match (mobile stations located outside the designated area), it is difficult to see which mobile stations are located in the area. The base station can easily determine whether this is the case. Therefore, when a wireless taxi is to be dispatched, it is possible to ensure that a taxi located in the relevant area is dispatched. Furthermore, if there are no taxis in the area, it is sufficient to allocate a taxi to a mobile station located in the vicinity that wishes to receive a taxi dispatch command, so it is expected that the taxi dispatch process for users will be improved.

[Brief explanation of the drawing]

The figure is a block diagram of a base station for explaining the empty vehicle display method according to the present invention. In the figure, 1 is a base station, 2 is a keyboard, 3 is a microphone, 4 is a transmitter, 5 and 7 are antennas, 6 is a polling signal generation means, 8 is a receiver, 9 is a demodulation means, 10 is a data detection means, 11 is a storage means, 12 is a district comparison means, and 13 is a display device. −4=

Claims (1)

[Claims] In the AVM method, a polling signal is sent to the mobile station after a voice instruction, and only the mobile station that wants to respond returns a response signal based on the polling signal. An empty vehicle display method characterized in that the area code information in the signal is compared and the station numbers of mobile stations that match are displayed in a different color from the station numbers of mobile stations that do not match.