JPH0563637A - Position detection system for mobile body terminal equipment - Google Patents

Abstract

PURPOSE:To simply build up the detection system for a vehicle position for a business managing lots of vehicles such as transportation business by allowing a stationary terminal equipment connected, to a mobile communication exchange station detects a current position of a mobile body terminal equipment. CONSTITUTION:A district data table 12 used to store relation between a district identification code and a district name and a terminal identification code (vehicle number) of a mobile body terminal equipment 1 and the district identification code with cross reference is provided to a stationary terminal equipment 9 connected to a radio base station 6 through a mobile communication exchange station 7 and a general exchange station 8. When the mobile body terminal equipment 1 receives a district identification code different from the district identification code stored already newly, a preset vehicle number and the district identification code received newly are sent automatically to the stationary terminal equipment 9 through the radio base station 6, the mobile communication exchange station 7 and the general exchange station 8. A control section 11 of the stationary terminal equipment 9 receives information sent through a reception section 10, referes to the district data table 12, extracts the district name and displays it onto a display section 13 together with the vehicle number.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a position detecting method for a mobile terminal in a wide area mobile communication system divided into a plurality of small areas.

[0002]

2. Description of the Related Art Conventionally, in the position detection of a mobile terminal of this type, a region identification code determined for each area divided into small areas in which the mobile terminal is constantly broadcast from a radio base station. In addition to receiving and storing, the area identification code and terminal identification code are transmitted to the mobile communication switching center via the radio base station to notify the position of each mobile terminal, and the area where the incoming call to the mobile terminal is made. It is used only to determine the location and is called location registration.

[0003]

In the above-mentioned conventional position detection of mobile terminals, the mobile communication switching center normally holds the position information of each mobile terminal and uses it only for incoming call control. There is a problem in that the position of each mobile terminal cannot be known from a fixed terminal or the like connected to the mobile communication switching center.

[0004]

The position detecting method for a mobile terminal according to the present invention is determined for each area divided into small areas in which the mobile terminal is constantly broadcast from a radio base station. In a wide area mobile communication system that receives and stores an area identification code and transmits the area identification code to the radio base station, the area identification code and the area name are attached to a fixed terminal connected from the radio base station through an exchange. And a data table for correspondingly storing this area identification code and the terminal identification code of the mobile terminal, and the mobile terminal newly creates an area identification code different from the already stored area identification code. When received by
The automatically transmitted and preset terminal identification code and the newly received area identification code are transmitted to the fixed terminal via the radio base station and the exchange, and the fixed terminal transmits the terminal identification code and area. The configuration is such that an identification code is received, the data table is referred to, the area name is extracted and displayed together with the terminal identification code.

[0005]

The present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a mobile communication system for explaining an embodiment of the present invention. In FIG. 1, the mobile terminal 1 is configured to include a transmission / reception unit 2 that transmits / receives a signal via an antenna 5, a control unit 3, and an automatic dial unit 4. On the other hand, on the base station side, a plurality of radio base stations 6 are installed for each zone divided into small areas with respect to the mobile communication switching center 7. The fixed terminal 9 is connected to the mobile communication switching center 7 via the general switching center 8 and receives the signal.
0, a control unit 11, a region data table 12 for converting the region identification code and the region name and storing the region identification code and the terminal identification code in association with each other, and a display unit 1.
And 3 are included.

The operation will be described below. The plurality of radio base stations 6 constantly broadcast individual area identification codes, and the mobile terminal 1 moves between them. First, when the power of each terminal is turned on, in the mobile terminal 1, the area identification code broadcast from the wireless base station 6 is received and stored, and a call is made from the automatic dial section 4 to obtain the area identification code and the terminal. The identification code (in this case, the vehicle number) is transmitted to the mobile communication switching center 7 via the radio base station 6. The mobile communication switching center 7 transmits these pieces of information to the fixed terminal 9 via the general exchange center 8.

The control unit 11 registers these pieces of information in the area data table 12 and displays the area name and the corresponding vehicle number corresponding to the area identification code obtained from the area data table 12 on the display unit 13.

The mobile terminal 1 always receives the area identification code from the radio base station 6, and stores the information in the control unit 3. When the mobile terminal 1 moves and the electric field from the radio base station 6 falls below a certain level, the mobile terminal 1 changes the reception timing or the reception frequency and captures radio waves from the radio base station 6 above a certain level, Receive the area identification code inside.

When the newly received area identification code is different from the area identification code already stored, the control unit 3
Activates the automatic dial unit 4. The automatic dial unit 4 makes a call using a preset dial number, connects the line, and sends the preset vehicle number and the current area identification code to the fixed terminal 9 in the same procedure as described above.

In the fixed terminal 9, the control unit 11 receives these pieces of information via the receiving unit 10, and the area data table 12
The area name corresponding to the area identification code is extracted and the current position is displayed on the display unit 13 together with the vehicle number.

[0012]

As described above, according to the present invention, the area identification code and the area name are converted to the fixed terminal connected from the radio base station through the exchange, and the area identification code and the terminal identification code of the mobile terminal are converted. When a mobile terminal newly receives an area identification code different from the area identification code already stored, a data table for correspondingly storing and is stored. The received area identification code is transmitted to the fixed terminal via the wireless base station and the exchange, and the fixed terminal receives the transmitted terminal identification code and area identification code and refers to the data table to extract the area name. By configuring to display together with the terminal identification code, it is possible to detect the current position of the mobile terminal with a fixed terminal, such as the transportation industry and the taxi industry. There is an effect that the detection system of easily vehicle position can be constructed in industries that manage a large number of vehicles as the.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a mobile communication system for explaining an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mobile terminal 2 Transmitter / receiver section 3,11 Control section 4 Automatic dial section 5 Antenna 6 Radio base station 7 Mobile communication exchange station 8 General exchange station 9 Fixed terminal 10 Receiving section 12 Area data table 13 Display section

Claims (1)

[Claims] 1. A mobile terminal receives and stores an area identification code determined corresponding to each area divided into small areas which are constantly broadcast from a wireless base station, and the area identification code is stored in the wireless area. In a wide area mobile communication system for transmitting to a base station, conversion of the area identification code and area name to a fixed terminal connected from the wireless base station via a switching center, and this area identification code and terminal identification of the mobile terminal A data table for correspondingly storing the code and the mobile terminal is newly received when the mobile terminal newly receives an area identification code different from the area identification code already stored,
The automatically transmitted and preset terminal identification code and the newly received area identification code are transmitted to the fixed terminal via the radio base station and the exchange, and the fixed terminal transmits the terminal identification code and area. A position detecting method for a mobile terminal, comprising receiving an identification code, referring to the data table, extracting the area name and displaying the area name together with the terminal identification code.