JPH1051843A - Mobile phone interactive system - Google Patents

Abstract

(57) [Abstract] [Problem] To provide a navigation system that can efficiently use detailed local information without being restricted by use places such as tunnels and underground shopping malls. A portable device of a portable telephone system is provided with a receiving unit for receiving position information transmitted from a wireless base station, and a position specifying processing unit for specifying a current position from the received position information. Inform the user of the current location.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone interactive system in which a portable telephone system and an information multiplex broadcasting system which is transmitted by being superimposed on a signal such as a radio broadcast or a television broadcast are interactively upgraded.

[0002]

2. Description of the Related Art Hitherto, navigation systems have been rapidly adopted in order to provide map information and road information such as traffic congestion when driving a car, and to eliminate traffic congestion and improve traffic efficiency. As shown in FIG. 4, these navigation systems use radio waves transmitted from a plurality of GPS (Global Positioning System) satellites 50 launched on the earth, and can be used anywhere, anytime, or on the earth. Even so, it is possible to quickly find out your current location.

Specifically, a plurality of radio waves transmitted from a GPS satellite 50 are received by a GPS receiver 51, the arrival time of each radio wave is measured, and the current position is measured based on the difference. Based on the measured current position, map information of the vicinity stored in a CD-ROM or the like is read by a CD-ROM driver 52, and the map information is added to the GPS receiver 51.
The current position measured in step is superimposed and displayed on the display device 53. With such a configuration, the current position of the car and
The travel route to the destination is displayed on the display device 53,
The driver is informed of the current position and the travel route.

[0004] In conjunction with a mobile radio system, information on road congestion, regulation, and accidents is provided by using, for example, an automobile telephone, a teleterminal, a beacon, etc., and the current position obtained from the GPS satellites is provided. And CD-ROM
In combination with the map information of the above, the optimal route to the destination of travel is searched to guide the driver. These systems are described in “3. Application to Vehicle 3-1 Vehicle Navigation System” on page 971 of “Television Society Journal of Image Information Engineering and Broadcasting Technology Vol. 46 No. 8 1992”.

[0005]

As described above, the navigation system for an automobile is a radio wave receiver from a GPS satellite, a measurement of the arrival time of the radio wave from the GPS satellite, and a CD-ROM or the like. Since the map information and the current position calculated by the radio wave from the GPS satellite are overwritten on the map information and the information is displayed on the display device, the whole system is complicated and large. In addition, when combined with a mobile radio system, the system becomes more complicated and large, and is not so problematic when mounted on a car, but is not suitable for individuals to carry and carry. In addition, the method using the GPS satellite radio waves has a problem that when entering a tunnel, an underground mall, a building, or the like, the radio waves from the GPS satellites do not reach and the current position cannot be measured.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a mobile radio system, specifically, an analog and digital cellular phone system, and an information multiplex broadcast by text information superimposed on a radio / television broadcast signal and transmitted. It is a mobile phone interactive system that can be used by individuals, such as a mobile phone, and can obtain various information using the system.

The mobile telephone system divides a telephone service area into predetermined areas called cells, arranges radio base stations for each cell, installs a base station connecting the base stations, and establishes a mobile telephone holder. Is configured to communicate with another telephone terminal via the base station and the master station. The area of each cell has a radius of about several km to 20 km, and a plurality of radio carriers are allocated to each cell, so that each cell phone is constantly monitored in which cell it is currently located. Information is being sent. This allows the mobile phone holder to know which cell is currently in use, and further provides regional information covering this cell from a server provided at the master station or base station using a mobile phone line, Alternatively, a system that can be used as a navigation system can be constructed by providing regional information over a plurality of cells in a wider area in the form of a multiplexed signal of broadcast signals such as radio and television broadcasts.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an example of a cellular phone service, in which the entire range of the service is divided into a range called a cell having a radius of about several km to 20 km, and a radio base station 1 is installed for each cell. In this radio base station 1, a master station 2 that controls each radio base station 1 is connected by a line or another radio. Further, the master station 2 is connected to a fixed line network of a normal wired telephone system. In the mobile phone system having such a configuration, in a digital mobile phone system, one mobile channel is shared by a plurality of mobile devices 30 and time-division multiplexed access (hereinafter, referred to as T) for performing time-division communication.
DMA). This TDMA is
For example, in a three-channel TDMA system, each radio base station 1
Are assigned a plurality of wireless carriers according to the size of the traffic. The radio base station has 2 frames per frame
0 ms time division multiplexed signal (hereinafter referred to as TDM signal)
Is transmitted by each carrier. Three slots (6.7 ms / slot) are arranged in one frame, a wireless carrier and a slot are allocated to a portable device during communication, and the portable device receives a TDM signal periodically (every 20 ms), A burst signal is transmitted to a wireless base station. In a portable device, a transmission / reception / idle cycle is repeated at a cycle of 20 ms, and three portable devices can simultaneously perform two-way communication with the wireless base station with a set of wireless carriers in the wireless base station and the portable device. I have. In other words, the wireless carrier is constantly communicating with the wireless base station during the mobile period, the wireless base station in each cell recognizes that a specific mobile device exists in the cell, and uses the data as a parent. By transmitting to the station, if there is an incoming call to the specific portable device, the line is immediately connected to the radio base station of the cell where the specific portable device exists, and communication with the specific portable device holder is established. It becomes possible.

[0009] On the other hand, in the case of radio / television broadcasting, although not shown, in the case of television broadcasting in particular, audio information of a broadcast program is converted into textual information for effective use of the airwaves and for the hearing impaired and foreigners. In addition, the character information signal is superimposed on the television signal, or various information such as news, weather forecast, stock information, and event information which are not related to the program are superimposed on the television signal and transmitted as character information. The character information in the television signal is superimposed on the television screen on a display device such as a cathode ray tube or the like using a character information signal reproduction circuit provided in the television receiver and a character / graphic character table in the television receiver. Only character information is displayed. In recent years, even in radio broadcasting, a radio receiver capable of superimposing a character information signal on a radio signal and transmitting the received character information in a manner substantially similar to the television broadcasting has been widely used.

Further, portable equipment of the portable telephone system, that is, portable telephones, has been rapidly reduced in size and weight in recent years, and has not only a function of storing a calling telephone number and a function of displaying the number, but also a function of transmitting a simple message. It can be displayed. This display can be performed by a combination of character data of character information in the mobile phone and a reproducing circuit of the transmitted character information signal. Also,
On the other hand, character information can be transmitted as voice information in a state close to human voice. In particular,
With the introduction of a wide-area traffic control system using a computer, it has been practiced to notify a driver of a traffic congestion state via a radio of a car.

That is, it is possible to easily convert information of limited words and sentences, such as traffic information, into speech. For this reason, it is also possible to convert character information based on limited words and sentences, such as traffic information and sightseeing information of each region, into an audio signal. As shown in FIG. 2, using such a technique, as shown in FIG. 2, traffic information and sightseeing information of the area covered by the broadcast station are broadcast as broadcast radio waves in a text information multiplex broadcast superimposed on a radio / television broadcast signal. The radio wave transmitted from the station 11 is received by the radio base station 12 of each cell of the mobile phone system, and the text information multiplex signal received by the radio base station 12 is reproduced and converted into an audio signal. The mobile phone 13 can listen to the traffic information and the local sightseeing information transmitted by the text information multiplex broadcasting by transmitting the voice signal thus obtained using the wireless line of the mobile phone system.

In the above description, the text information of the text information multiplex broadcast superimposed on the broadcast radio wave is converted into an audio signal by the radio base station in each cell of the mobile phone system. If the capacity is large, the radio base station does not convert to audio signals, extracts only the necessary signals for text information multiplex broadcasting sent by broadcast radio waves, and uses only the text information using a mobile phone line. And display it as characters on a display device using the display function of the mobile phone.

Further, such local information is transmitted to the broadcasting station 1
Apart from broadcasting by superimposing on the broadcast signal from 1, for example, a server as an information source may be installed in the master station 2 and supplied from this server. Normally,
The broadcast station 11 broadcasts over a wide area, and is not very good at providing information in a small area. Therefore, wide area information may be supplied by a broadcast signal, and information closely related to a small area may be supplied from the master station 2. The transmission from the master station 2 to the mobile phone is possible by using an available channel of the mobile phone line, but the communication line of the mobile phone may be directly used.

The area information may be image information in addition to character information and audio information, and may be configured to handle the map itself. In that case, the portable device is provided with a display unit having a display area suitable for map display.

Further, it is also possible to add a function of receiving text information multiplex broadcasting to a portable telephone so as to directly receive and display text information multiplex broadcasting transmitted from a broadcasting station.

Next, the configuration of a portable device (specifically, a portable telephone) of the portable telephone interactive system of the present invention for realizing the above-described functions will be described with reference to FIG. A mobile phone means 32 for performing bidirectional communication with a wireless base station of the mobile phone system via a receiving antenna 31 and receiving a signal from the wireless base station is provided, and communication between the mobile phone means 32 and the wireless base station is provided. And a current position confirming means 33 for performing signal processing for specifying a cell in which a mobile phone exists and a position and area in the cell based on the electric field strength of a signal from a wireless base station, and the like. . Further, the current position confirmation means 33 is connected to a sound output means 35 and a display means 36 via a system control means 34 for controlling each signal processing means described later. Further, the current position confirmation means 33 is connected to a system control means 34 via a traveling direction prediction means 37. The system control means 34 further includes a tuning means 38 for receiving and tuning a character information multiplex signal superimposed on a broadcast signal via a broadcast radio wave receiving antenna 39,
A user interface means 40 for the user to input various data; a moving distance measuring means 41 for measuring the moving distance or time of the mobile phone; data inputted by the user; data calculated by each means; A memory means 42 for storing data transmitted from a broadcasting station is connected. The memory means 42 further stores tuning data of receivable broadcasting stations corresponding to cells in advance, and also stores operation procedures of each means.

The antenna 31 and the portable telephone means 3 having this configuration
2, system control means 34, sound output means 3
5. The display means 36, the memory means 42 and the user interface means 40 are basically the same as those of the conventional portable telephone.

In the portable telephone interactive system thus configured, the TD communicated between the radio base station 1 and the portable device 3 as described with reference to FIG.
Based on the M signal, the current position confirmation unit 33 detects the cell position where the portable device 3 currently exists. The radius of this cell is small in urban areas and large in suburbs due to the difference in the arrival conditions of radio waves. The current position in the cell can be detected by measuring the difference in the electric field strength or the arrival time. The current position information confirmed by the current position confirmation means 33 is stored in the memory means 42. Next, when the data of the movement target position is input from the user interface means 40, it communicates with the radio base station via the traveling direction prediction means 37, and the cell location on the way of movement or the text information multiplex broadcast frequency from the broadcast station, etc. Is read from the wireless base station, and the data is stored in the memory means 42. Alternatively, the procedure for reading the data such as the cell location or the text information multiplex broadcast frequency stored in the memory means 42 in advance is performed by the traveling direction prediction means 37.
Create with.

Next, when the portable device moves from the current position cell to the target position cell, the data is compared with the data in the memory means 42 of the portable device by communication with the radio base station of the destination cell, and the relevant radio base station is determined. Inform the portable device user that they have reached the cell range to be covered. Further, it receives the text information multiplex signal transmitted from the corresponding radio base station or the text information multiplex broadcast signal transmitted from the broadcasting station, and outputs the traffic information or the local sightseeing information of the cell area from the audio output means 35 or the display means 36. Get. In addition, by receiving and measuring a wireless carrier signal from a wireless base station for each neighboring cell, the current detailed position after movement is determined, and the required time or route to the detailed target position in the cell is displayed or displayed. It becomes possible to notify by voice.

In general, there are a plurality of broadcast stations covering the service area of the mobile phone. If it is not clear which broadcast station is broadcasting the target area information, a list of broadcast channels and multiplex broadcast contents is provided. Is broadcast at a specific time on a specific channel or all channels as index information, and based on the index information received by the user,
Broadcast channel settings can be made. If the broadcast time is limited or the time you want to receive is specified, it is possible to make a reservation for reception.For example, when moving, move to a channel that broadcasts the area information of the destination. You can also make a reservation according to the time.

Further, when an emergency occurs, each wireless base station transmits an emergency information signal to the portable device,
The portable device receiving this signal activates the portable device based on the emergency information signal recognition data in the portable telephone means 32 and the memory means 42, and sends the emergency information to the portable device user via the audio output means 35 or the display means 36. I can tell you. Also, when an emergency information signal is transmitted from a broadcast station, data for selecting a broadcast frequency covering a cell in the middle of a moving target is stored in the memory means 42 in advance, so that the cell area is immediately covered. The broadcast frequency can be selected, and the contents of the emergency information can be viewed on the audio output means 35 or the display means 36.

Furthermore, the moving speed or moving time of the portable device is measured by the moving distance measuring means 41, and the mobile device communicates with the radio base station according to the moving distance or time according to the procedure stored in the memory means 42. Alternatively, the content of the text information multiplex signal can be viewed by selecting the broadcast frequency of the broadcast station. The moving distance measuring means 41 can use a clock function and, for example, a pedometer function when the portable device user is walking, or data obtained from a speedometer or a distance meter of the car when using the car. I can do it.

When the moving distance measuring means 41 is used and, for example, a moving means such as a railway which has a small change in the moving time is used, the required time from the current position to the moving target position is calculated and the moving time is calculated. It is also possible to shut off the operating power supply of the portable device during the time and turn on the operating power supply of the portable device again after the required time elapses, so that data for reducing the power consumption of the portable device can be stored in the memory unit 42.

Further, the electric field intensity of the radio carrier radio wave transmitted from the radio base station of the cell on the move is measured,
The movement target position may be calculated by performing position prediction based on the movement direction of the movement destination by the movement direction prediction means 37. According to this, it is necessary to input movement target position data to the user interface means 40 before moving. In addition, it is also possible to select the character information multiplex broadcast signal of the moving destination in the middle of the movement and obtain the information of the moving destination at any time.

In the above description, the radius of the cell is several K
Although the mobile phone system (so-called cellular system) having a cell radius of about 20 m to 20 km has been described, the present invention is not limited to this, and the radius of the cell is 200 m to 30 m.
Needless to say, it can be applied to a PHS (Personal Handy Phone System) of about 0 m. In the case of the PHS, since the area of each cell is small, it is possible to handle more detailed regional information, and to provide a highly accurate navigation system. Can be built.

[0026]

As described above, the present invention relates to a mobile phone used in a mobile phone service system, that is, a mobile device, that is, a current position confirming means, a traveling direction predicting means, a moving distance measuring means, a character information, By adding to the functions of a conventional mobile phone, a reception channel selection unit for a multiplex broadcast signal and a memory unit with an expanded storage capacity for storing various data,
A portable telephone interactive system having a small and lightweight navigation function can be constructed. This makes it possible to communicate within tunnels, underground shopping centers, and buildings that could not be achieved with conventional navigation systems installed on automobiles, etc., to obtain information by text information multiplex broadcasting, and to provide services for mobile phone systems. The area is divided into cells, and communication between the radio base station and the portable device in the cell, which is always performed, makes it easy to detect the current position of the portable device, such as a CD-ROM used in a car navigation system. There is no need to use the map information and the like stored in the mobile phone, and the mobile phone interactive system having an inexpensive navigation function can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a service method of a mobile phone system.

FIG. 2 is an explanatory diagram showing an outline of a mobile phone interactive system of the present invention.

FIG. 3 is a block diagram showing a configuration of a mobile phone interactive system according to the present invention.

FIG. 4 is a block diagram showing a configuration of a conventional navigation system.

[Explanation of symbols]

 32 mobile phone means 33 current position confirmation means 34 system control means 35 audio output means 36 display means 37 traveling direction prediction means 38 channel selection means 40 user interface means 41 travel distance measurement means

Claims (12)

[Claims] 1. A mobile communication system in which a service area is divided into a plurality of cells, a radio base station is provided for each cell, and communication between a master station and a mobile device or between mobile devices is performed via the radio base station. In the telephone system, a position information signal receiving unit that receives a position information signal transmitted from the wireless base station, wherein the mobile device specifies a position of the mobile device based on the received position information signal. A mobile phone interactive system, comprising: 2. The portable device receives position information signals from radio base stations of a plurality of cells adjacent to each other, and the position specifying processing unit receives a position information signal based on the received plurality of position information signals. 2. The mobile phone interactive system according to claim 1, wherein the mobile phone interactive system is configured to specify a position of the mobile device. 3. The portable device further comprises: input means for inputting destination target position data; storage means for storing the input target position data; and notifying means. 3. The mobile phone interactive system according to claim 1, wherein a moving position is specified by a specifying unit, and the arrival of the target position is notified by the notifying unit. . 4. A mobile area in which a service area is divided into a plurality of cells, a radio base station is provided for each cell, and communication between a master station and a portable device or between portable devices is performed via the radio base station. In the mobile phone system, the wireless base station includes means for transmitting area information, the mobile device receives a position information signal transmitted from the wireless base station, and the received position information. A mobile phone interactive system comprising: a position specifying processing unit that specifies a position of a mobile device based on an information signal; and a receiving unit that receives local information from the wireless base station. 5. The radio base station according to claim 4, wherein the transmission of the area information is stopped when the number of used lines in the cell matches the allowable number of lines. The described mobile phone interactive system. 6. A mobile communication system in which a service area is divided into a plurality of cells, a radio base station is provided for each cell, and communication between a master station and a mobile device or between mobile devices is performed via the radio base station. In the telephone system, a broadcasting unit that multiplexes and superimposes regional information on a broadcast signal and transmits the position information signal, and a position information signal receiving unit that receives a position information signal transmitted from the wireless base station, based on the received position information signal A mobile phone interactive system comprising: a mobile device having position specifying processing means for specifying the position of the mobile device; and receiving means for receiving local information superimposed on the broadcast signal. 7. The local information includes map information, and the portable device includes a display unit, and the display device displays the location specified as the map information on the display unit. Item 7. A mobile phone interactive system according to any one of Items 4 and 6. 8. A mobile communication system in which a service area is divided into a plurality of cells, a radio base station is provided for each cell, and communication between a master station and a mobile device or between mobile devices is performed via the radio base station. In the telephone system, a broadcasting unit that superimposes regional information on a broadcast signal and transmits the broadcast at a different frequency for each region; a positional information signal receiving unit that receives a positional information signal transmitted from the radio base station; Position specifying processing means for specifying the position of the mobile device based on the obtained position information signal, receiving means for receiving area information superimposed on the broadcast signal, input means for inputting destination target position data, Target position data storage means for storing the broadcast data; broadcast frequency storage means for storing broadcast frequency information of the broadcast means covering a position in the middle of movement; Based on the information and the position information of the unit, mobile phone Interlaken Restorative system by controlling the receiving means during the movement consists of a portable device provided with the reception control means for receiving the area information. 9. A mobile station which divides a service area into a plurality of cells, provides a radio base station for each cell, and performs communication between a master station and a portable device or between portable devices via the radio base station. In a mobile phone system, broadcasting means for multiplexing and superimposing regional information on a broadcast signal and transmitting at a different frequency for each region; position information signal receiving means for receiving a regional information signal transmitted from the radio base station; Position specifying processing means for specifying the position of the portable device based on the obtained position information signal; receiving means for receiving the area information superimposed on the broadcast signal; input means for inputting destination target position data; Target position data storage means for storing the obtained data, broadcast frequency information storage means for storing broadcast frequency information of the broadcast means covering a position in the middle of movement, and clock measurement means. A portable telephone interactive system comprising: a portable device having a reception control unit for controlling the reception unit during movement based on the information of the broadcast frequency information storage unit and the time information of the time measurement unit to receive the area information. . 10. A mobile communication system in which a service area is divided into a plurality of cells, a radio base station is provided for each of the cells, and communication between the master station and the portable device or the portable device is performed via the radio base station. In the telephone system, a broadcasting unit that superimposes regional information on a broadcast signal and transmits the broadcast at a different frequency for each region; a positional information signal receiving unit that receives a positional information signal transmitted from the radio base station; Position specifying processing means for specifying the position of the mobile device based on the obtained position information signal, receiving means for receiving area information superimposed on the broadcast signal, input means for inputting destination target position data, Target position data storing means for storing the received data, electric field intensity measuring means for measuring the electric field intensity of the broadcast signal received by the receiving means, and , Mobile phones interactive system that controls the reception means to receive a large broadcast signal of greatest electric field strength during the movement consists of a portable device provided with the reception control means for receiving the area information. 11. The portable device further comprising: an arrival time estimating means for estimating a time to a destination target position; and a power control means for shutting off power until the estimated arrival time is reached. 3, 8, 9, 1
0. The mobile telephone interactive system according to any one of 0. 12. A mobile communication system in which a service area is divided into a plurality of cells, a wireless base station is provided for each of the cells, and communication between the master station and the portable device or the portable device is performed via the wireless base station. In the telephone system, a regional information transmitting unit provided in the radio base station for transmitting regional information, a broadcasting unit for multiplexing and superimposing regional information on a broadcast signal and broadcasting, and a position information signal transmitted from the radio base station. Position information signal receiving means for receiving, position specifying processing means for specifying the position of the portable device based on the received position information signal, and area information receiving means for receiving area information transmitted from the wireless base station; Broadcast receiving means for receiving regional information superimposed on the broadcast signal; switching between regional information transmitted from the radio base station and regional information superimposed on the broadcast signal And selection means for-option, the mobile phone interactive system consisting of a portable device; and a display means for displaying the selected area information.