JP2002315042A - Portable radio equipment, information communication system using the same and method for deciding position - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain portable radio equipment, capable of specifying the present position under a simple control using a simple constitution, without using a GPS position measuring system. SOLUTION: The portable radio equipment comprises a radio section for transmitting to and receiving from a base station, a reception level measuring section for measuring the reception level transmitted from the base station and received by the radio section, a memory for storing a plurality of predetermined positions and signal levels of the base station signals at the plurality of these positions as sets, and a position-deciding section for comparing the receiving level measured by the receiving level measuring section with the signal levels stored in the memory and deciding at least one position of the plurality of the positions.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable wireless device and an information communication system using the same, and more particularly to control of position determination and a position determination method.

[0002]

2. Description of the Related Art FIG. 10 is a diagram showing a system configuration of a transit information service system for transportation which is a conventional information communication system. In the figure, 150 is an information center device storing transfer guidance information, 109 is a base station, 101 is an information center device 15 via the base station 109.
0 indicates a portable wireless device capable of communicating with 0. Portable wireless device 101
Is the antenna 102 for communication with the base station 109, the display 1
22, a GPS position positioning unit 111, and a GPS signal antenna 112. The display 122 displays information input from an input unit (not shown) and information obtained from the information center device 150. GPS position positioning unit 111
Is the GP from the GPS satellites 110a, 110b, 110c.
A GPS signal is received via the S signal antenna 112, and the position of the portable wireless device 101 is measured by using a predetermined calculation method.

Next, the operation will be described. First, the user operates the operation unit of the portable wireless device 101 to input information such as a departure place, a destination, and a used transportation, and causes the display 122 to display the information. At the same time, the GPS positioning unit 111 is operated, and G
A position calculation using a GPS signal from the PS satellite 110 is performed, and the current position of the portable wireless device 101 is measured. Next, the information displayed on the display unit 122 and the GPS position positioning unit 11
1 is transmitted from the antenna 102 to the information center apparatus 150 via the base station 109.

[0006] The information center device 150 that has received the information from the portable wireless device 101 selects the stored transfer information based on the information and transmits the selected transfer information to the portable wireless device 101. The portable wireless device 101 receives the transfer information via the base station 109 and displays the information on the display 122. Thus, the user can obtain desired transfer information by looking at the display 122.

[0005]

Since the conventional information communication system is configured as described above, the portable wireless device is provided with a GPS positioning unit and a GP to obtain the current position.
It was necessary to provide an S signal antenna. By providing these parts, the size of the portable wireless device can be reduced,
There have been technical problems such as a reduction in weight and an increase in power consumption due to GPS positioning. Also, expensive G
There is a problem that the provision of the PS position positioning unit hinders cost reduction.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a portable wireless device capable of specifying a position with a simple configuration and a simple control. It is.

It is another object of the present invention to provide a portable wireless device capable of specifying a position with a simple configuration and simple control and obtaining information on the position. is there.

It is another object of the present invention to provide a portable wireless device capable of specifying a position more accurately with a simple configuration and a simple control.

It is another object of the present invention to provide an information communication system capable of specifying a position of a portable wireless device with a simple configuration and simple control and obtaining information on the position. .

[0010] It is another object of the present invention to specify a position of a portable wireless device with a simple configuration and simple control, to obtain information on the position, and to provide a portable wireless device. An object of the present invention is to provide an information communication system having a simpler configuration.

[0011] It is still another object of the present invention to provide an information communication system capable of specifying a position of a portable wireless device with a simple configuration and simple control and obtaining appropriate information on the position. It is.

Another object of the present invention is to specify a position with a simpler configuration and simpler control.
An object of the present invention is to provide a portable wireless device that can obtain information on the position.

[0013] It is another object of the present invention to specify a position of a portable wireless device with a simple configuration and simple control, to obtain information on the position, and to further simplify the portable wireless device with a simpler configuration. An object of the present invention is to provide an information communication system with simple control.

It is still another object of the present invention to provide a position determining method capable of specifying the position of a portable wireless device by simple control.

[0015]

According to a first aspect of the present invention, there is provided a portable radio apparatus for transmitting and receiving signals to and from a base station, and a reception level of a reception signal transmitted from the base station and received by the radio section. Reception level measurement unit, a storage unit that stores a plurality of predetermined positions and a signal level of a base station signal at each of the plurality of positions as a set, the reception level measured by the reception level measurement unit and the storage A position determining unit that compares the signal levels stored in the units and determines at least one of the plurality of positions.

The invention according to claim 2 of the present invention provides:
2. The portable wireless device according to claim 1, wherein the wireless unit transmits the position determined by the position determining unit to the server via the base station, and receives the position information related to the position stored in the server. It is.

Further, the invention according to claim 3 of the present invention provides:
3. The portable wireless device according to claim 2, further comprising an instruction input unit for designating one position when a plurality of positions are determined by the position determination unit, wherein the wireless unit determines a position designated by the instruction input unit. This is transmitted to the server.

Further, according to a fourth aspect of the present invention,
2. The portable wireless device according to claim 1, further comprising a channel recognizing unit for recognizing a channel of the received signal, wherein the storage unit stores the signal level of the base station signal in association with each of the plurality of channels, and the position determining unit. The reception level and the signal level corresponding to the same channel are compared to determine at least one of the plurality of positions.

Further, the invention according to claim 5 of the present invention provides:
2. The portable wireless device according to claim 1, further comprising a level change detecting unit for detecting a change in a received signal level, wherein the position determining unit determines a position when the change is smaller than a predetermined value. It is.

According to a sixth aspect of the present invention, there is provided an information communication system, comprising: a server having a position-information storage unit for storing position information relating to a predetermined position; and a server capable of communicating with the server via a base station. A radio unit for transmitting and receiving to and from the base station, and a reception unit for measuring a reception level of a reception signal transmitted from the base station and received by the radio unit. A level measurement unit, a storage unit configured to store a plurality of predetermined positions and a signal level of a base station signal at each of the plurality of positions as a set, the reception level measured by the reception level measurement unit and stored in the storage unit. Comprising a position determining unit for comparing at least one of the plurality of positions and comparing the signal levels obtained, the wireless unit is determined by the position determining unit Transmits the location to the server,
The position information regarding the position obtained from the position-information storage unit of the server is received.

The invention according to claim 7 of the present invention provides:
7. The information communication system according to claim 6, wherein the server is configured to store a plurality of predetermined positions and a signal level of a base station signal at each of the plurality of positions as a set. Further comprising a group information selecting unit for selecting predetermined group information from the group information stored in the position-level storage unit based on the condition information, wherein the portable wireless device transmits the condition information to the server in the wireless unit and transmits the condition information to the server. The set information selected by the set information selecting unit is received, and the set information is stored in the storage unit.

Further, the invention according to claim 8 of the present invention provides:
8. The information communication system according to claim 7, wherein the server selects predetermined position information from the position information stored in the position-information storage unit based on the condition information transmitted from the portable wireless device and the determined position. The wireless communication device further includes a position information selection unit, and the portable wireless device receives the position information selected by the position information selection unit in the wireless unit.

The invention according to claim 9 of the present invention provides:
8. The information communication system according to claim 7, wherein the condition information includes a departure place and a destination, the position includes a base point of the transportation, and the position information includes departure time information of the transportation.

A portable radio device according to a tenth aspect of the present invention is a radio unit for transmitting and receiving to and from a base station, and a reception unit for measuring a reception level of a reception signal transmitted from the base station and received by the radio unit. A level measuring unit, including a channel recognition unit that recognizes a channel of the received signal, wherein the wireless unit transmits the reception level and the channel to the server via the base station, and based on the reception level and the channel in the server, A position determined from a plurality of positions stored in advance and position information relating to the position are received.

Further, an information communication system according to claim 11 of the present invention includes a server and a portable wireless device capable of communicating with the server via a base station, wherein the server has a predetermined configuration. A position-level storage unit that stores a plurality of positions and a signal level and a channel of a base station signal at each of the plurality of positions as a set, based on a reception level and a channel transmitted from the portable wireless device, corresponding to the same channel. A position-determining unit that compares the reception level and the signal level to determine at least one position from among the plurality of positions, a position-information storage unit that stores position information about a predetermined position, A radio unit that performs transmission and reception with the base station;
A reception level measurement unit for measuring a reception level of a reception signal transmitted from the base station and received by the radio unit, a channel recognition unit for recognizing a channel of the reception signal, wherein the reception signal and the channel Is transmitted to the server, and the position determined by the position determining unit of the server and the position information obtained from the position-information storage unit based on the position are received.

Further, a position determining method according to a twelfth aspect of the present invention is a method for determining a position of a portable radio device capable of communicating with a base station, comprising a plurality of predetermined positions and each of the plurality of positions. A first step of storing a signal level of a base station signal in a set, a second step of measuring a reception level of a reception signal transmitted from the base station and received by the portable wireless device, A third step of comparing signal levels to determine at least one of the plurality of positions.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram of a portable wireless device according to the present invention. In the figure, reference numeral 10 denotes a main body of a portable radio, and reference numeral 11 denotes an antenna for communication with a base station, which is provided on the main body of the portable radio. A radio unit 12, a reception level measurement unit 13, a level fluctuation detection unit 20, a channel recognition unit 1
4, a position determination unit 15, a storage unit 16, a display unit 18, an input operation unit 19, and a control unit 17 for integrally controlling these. The description of the control line connecting the control unit 17 and each unit is omitted.

The radio unit 12 is connected to the antenna 11,
A signal transmitted from the base station is received, and a signal is transmitted to the base station. The reception level measurement unit 13 is connected to the radio unit 12 and measures the reception level of a reception signal received by the radio unit 12. Channel recognition unit 14 connected to radio unit 12
Recognizes the channel of the received signal based on the frequency of the received signal received by the radio unit 12 or based on information from the control unit 17.

The level fluctuation detecting section 20 is connected to the receiving level measuring section 13 and detects a temporal fluctuation of the receiving level measured by the receiving level measuring section 13. Then, when the detected fluctuation is smaller than the predetermined value, a temporal fluctuation for outputting an activation signal to the position determination unit 15 is detected. As a specific example, the reception level measured by the reception level measurement unit 13 is stored in the storage unit 16 for a predetermined time, an average of the temporal fluctuation value is obtained, and when the average value is smaller than the predetermined value, the fluctuation is reduced. Is determined.

The storage unit 16 temporarily stores the reception level measured by the reception level measurement unit 13 and the channel recognized by the channel recognition unit and, for example, means of transportation between routes determined by the departure point and the destination. Are stored as a set of the plurality of base positions and the signal level of the base station signal at each of these base positions. The stored contents relating to the route may be previously input by the user from the input operation unit 19 based on predetermined information. Alternatively, the content stored in the external memory may be fetched from an input unit (not shown) and stored in the storage unit 16.

FIG. 2 shows the contents stored in the storage unit 16 and shows the standard signal levels of the base station signals measured in advance at the respective stations which are the locations of the transportation facilities. In the first embodiment, the signal levels of the base station signals from the own station, which is the base station of the service area including each station, and the six surrounding stations are stored.

In FIG. 2A, at station 1, base station A
The signal level of the base station signal transmitted from the base station and having a channel of 100 ch is 45 dBμ, and the signal level of the base station signal transmitted from the base station B and having a channel of 10 ch is 30 dB.
μ, the signal level of the base station signal transmitted from the base station C and the channel is 20 ch is 25 dBμ, the signal level of the base station signal transmitted from the base station D and the channel is 30 ch is 25 dBμ, and the signal level transmitted from the base station E is 25 dBμ. 40c
h, the signal level of the base station signal transmitted from the base station F is 20 dBμ, the signal level of the base station signal transmitted from the base station F is 50 dBμ, and the signal level of the base station signal transmitted from the base station G is 60 ch is 30dB
μ.

In FIG. 2B, at station 2, base station A
The signal level of the base station signal transmitted from the base station and having a channel of 100 ch is 50 dBμ, and the signal level of the base station signal transmitted from the base station B and having a channel of 10 ch is 35 dB.
μ, the signal level of the base station signal transmitted from the base station C and the channel is 20 ch is 30 dBμ, the signal level of the base station signal transmitted from the base station D and the channel is 30 ch is 25 dBμ, and the signal level transmitted from the base station E is 25 dBμ. 40c
h, the signal level of the base station signal transmitted from the base station F is 15 dBμ, the signal level of the base station signal transmitted from the base station F is 50 dBμ, and the signal level of the base station signal transmitted from the base station G is 60 ch is 30dB
μ.

In FIG. 2C, at station 3, base station A
The signal level of the base station signal transmitted from the base station and having a channel of 100 ch is 40 dBμ, and the signal level of the base station signal transmitted from the base station B and having a channel of 10 ch is 40 dB.
μ, the signal level of the base station signal transmitted from the base station C and the channel is 20 ch is 30 dBμ, the signal level of the base station signal transmitted from the base station D and the channel is 30 ch is 20 dBμ and the signal level transmitted from the base station E is 40c
h, the signal level of the base station signal transmitted from the base station F is 10 dBμ, the signal level of the base station signal transmitted from the base station F is 50 dB, and the signal level of the base station signal transmitted from the base station G is 60 ch. 25dB
μ.

In FIG. 2D, at station 4, base station A
The signal level of the base station signal transmitted from the base station and having a channel of 100 ch is 30 dBμ, and the signal level of the base station signal transmitted from the base station B and having a channel of 10 ch is 45 dB.
μ, the signal level of the base station signal transmitted from the base station C and the channel is 20 ch is 40 dBμ, the signal level of the base station signal transmitted from the base station G and the channel is 60 ch is 30 dBμ, the signal level transmitted from the base station H is 70c
h, the signal level of the base station signal transmitted from the base station I is 15 dBμ, the signal level of the base station signal transmitted from the base station I is 15 dBμ, and the signal level of the base station signal transmitted from the base station J is 90 ch. 25dB
μ.

Returning to FIG. 1, the position determination unit 15 compares the reception level and the channel of the reception signal obtained from the reception level measurement unit 13 and the channel recognition unit 14 with the contents stored in the storage unit 16 and stores them in advance. A station is selected from specified stations and specified as a position. For example, if the reception level of the reception signal from the base station A is 49 dBμ and the channel is 10
If it is 0ch, 100 of station 1, station 2, station 3, and station 4
signal level corresponding to each channel and reception level 49d
The difference from Bμ is calculated, and the station 2 at which this difference is minimum is specified as the position.

As will be described later, as another position specifying method, when the portable radio is monitoring the reception level of the peripheral base station, that is, detecting the peripheral zone level, the reception levels for a plurality of channels are measured. In this case, the storage unit 1
The signal level and the reception level corresponding to each of the plurality of channels stored in 6 are compared with each other to obtain a difference, and a station where the sum of the difference is minimum is specified as a position. In the case of this position specifying method, since the position is specified based on the reception levels of a plurality of channels, there is an effect that the accuracy increases.

If the distance between the routes is short, that is, only the station 1, the station 2, and the station 3 exist between the routes, and it is known in advance that these stations are within the service area of the same base station A, Storage unit 16 stores the reception level of the reception signal.
The station can be selected and specified only by comparing with the signal level of the base station signal stored in the base station. In this case, since the storage contents of the storage unit 16 need only be one signal level for each station, the used capacity is small and the number of objects to be compared is small, so that the control of the position determination unit 15 is simplified.

The position determining unit 15 is provided with a fluctuation detecting unit 20.
If the above-described position determination operation is performed by using the start signal output from the device, a stable reception level can be obtained, and thus there is an effect that the accuracy of the position specification increases.

The display section 18 displays the contents of the input from the input operation section 19, the station name which is the position specified by the position determining section 15, information on this station, and the like under the control of the control section 17. The input operation unit 19 is configured to include a numeric keypad and a function key for performing an input operation of a departure place, a destination, and the like, a communication operation, and the like, and outputs a signal based on the input contents to the control unit 17.

Next, the operation will be described. FIG. 3 is a diagram showing a route selected by the user and base stations near the route in the first embodiment. Reference numeral 30 denotes a portable wireless device of the first embodiment, and reference numerals 4a to 4j denote base stations A, B, C, D, E, F, G, H, Indicates I and J, 5
Reference numerals a to 5j denote cells which are service areas of the respective base stations A to J.

Reference numerals 61 and 62 denote a departure place and a destination specified by the user, 63 and 64 denote transportation means a and b on the route determined by the departure point 61 and the destination 62, respectively. Stations 1 to 7 on transportation a63 are shown. The user, along with the portable wireless device of the first embodiment, travels along this route by the transportation a 63 and the transportation b
Use 71 to move. The storage unit 16 of the portable wireless device 30 stores the location of the transportation facility on the route, that is, the signal level of each base station signal at the stations 1 to 4 on the transportation a63. The details of the storage contents are as shown in FIG.

In the vicinity of the station 2, the portable radio device 30 is in a standby state, and the base station signal from the base station A is intermittently received by the radio section 12. The reception level of the received signal is
The data is measured by the reception level measurement unit 13 and temporarily stored in the storage unit 16 together with the channel recognized by the channel recognition unit.

FIG. 4 is a timing chart showing the reception level detection timing of the portable wireless device. Timing A
, The base station receives a base station signal from its own station, that is, base station A, and measures its reception level. This corresponds to the above-mentioned intermittent reception. At timings B, C, D, and E, base station signals from base stations B, C, D, and E are received, and their reception levels are measured. This is called peripheral zone level detection. The reception level measured at the time of detecting the peripheral zone level is also temporarily stored in the storage unit 16 together with the channel. FIG. 5 shows the stored contents. The measurement time of the reception level for one channel is 1
ms or less, and a plurality of channels can be measured a plurality of times in a short time. Therefore, the stored reception level may be an average value of the reception levels measured a plurality of times.

The level fluctuation detecting section 20 calculates the average of the temporal fluctuation of the reception level measured a plurality of times for the same channel, and determines whether or not the average value is smaller than a predetermined value. If it is determined to be smaller, the position determination unit 15
Outputs an activation control signal. Thus, the position determination unit 15 can determine the position with high accuracy by using the reception level with high measurement accuracy. Also, based on the characteristic that the reception level fluctuates greatly due to the effects of fading while the portable radio is moving, but the reception level fluctuates little while the portable radio is stopped, the portable radio is stopped or moves at a low speed based on the above determination. Can be detected.

When the activation control signal is input from the level fluctuation detecting section 20, the position determining section 15 obtains from the receiving level detecting section 13 and the channel recognizing section 14 and stores in the storage section 16 as shown in FIG. The storage contents and the storage unit 16
Are compared with each other as shown in FIG.

More specifically, the reception level of each channel is compared to obtain a difference, and this is repeated for each channel, and the total difference is calculated for each station. It is considered that the measurement error of the reception level is large for the reception signal of the peripheral zone having the low reception level. Therefore, when calculating the sum of the differences between the respective channels, the difference in the channel of the own station, which is considered to be relatively small, Appropriate weighting may be applied to the difference between each channel so as to be emphasized. The station with the smallest calculated difference is specified as the position. That is, the station 2 is specified as a position and displayed on the display unit 18.

As described above, when traveling on a pre-selected route, the signal level of the base station signal at the location of the transportation facility on this route is stored in advance, so that the position of the portable radio device can be determined by the GPS. Can be obtained by simple control without adding a special device such as

Embodiment 2 Embodiment 2 of the present invention will be described with reference to the drawings. FIG. 6 is a configuration diagram of a transfer guidance system which is an information communication system according to Embodiment 2 of the present invention. The transfer guidance system includes an information center device 80 as a server, a base station 91 capable of communicating with the information center device 80 via a communication line 92, and a portable wireless device 90 capable of communicating with the base station 91 via a wireless line 93. Have been.

The same reference numerals as those in FIG. 1 denote the same or corresponding parts in the internal functional blocks of the portable wireless device 90, and a description thereof will be omitted. Reference numeral 21 denotes an instruction input key for instructing the position determined by the position determination unit 15 and displayed on the display unit 18 to receive, from the information center device 80, position information that is information on the position. Further, the position determining unit 15
When a plurality of positions are determined and displayed on the display unit 18, one of the displayed positions is selected, and an instruction to receive the position information is given. Since a plurality of positions are displayed as candidates and the user can select a correct position from among the candidates and obtain information on the position,
Easy to use. The function of the instruction input key 21 may be provided by any key such as a numeric keypad or a function key of the input operation unit 19.

The information center device 80 includes a storage device 81 that is a position-level storage unit, a storage device 82 that is a position-information storage unit, a group information selection unit 83, and a position information selection unit 84. The storage device 81 stores a plurality of pairs of positions, signal levels of base station signals at the positions, and channels indicating the frequencies of the base station signals. That is, in the second embodiment, the storage device 81 stores the station, the signal level of the base station signal at the station, and the channel shown in FIG. 2 described above. The set information selecting unit 83 specifies a route by a predetermined method based on given conditions, for example, a departure place and a destination, and selects a station on the route from the storage device 81. This predetermined method can be realized using a method similar to a known technique executed by, for example, transfer guidance software. When a plurality of routes are specified, these routes are transmitted to the portable wireless device 90 via the communication line 92, the base station 91, and the wireless line 93, and are located on the route selected and returned by the user of the portable wireless device 90. A station is selected from the storage device 81. The signal level and channel of the selected station and the base station signal stored as a pair with the selected station are
The data is transmitted to the portable wireless device 90 via the communication line 92, the base station 91, and the wireless line 93.

The storage device 82 stores information on the position in association with each position. In the second embodiment, a timetable of transportation facilities available at the station, a map of the station and the vicinity of the station, a departure line, a gate, and the like are stored as information. The position information selection unit 84 selects information from the storage device 82 based on the given condition, and transmits the information to the portable wireless device 90 as described above. For example, if the given condition is the station name and destination of the train at the position, the timetable of the destination local area is selected from the timetable stored in association with the station. If the current time information is also given, an optimal departure time of the train after that time and information on the line from which the train departs are selected from the timetable. If the station is a transfer station, a map of the station is also selected and transmitted.

Next, the operation will be described. FIG. 7 is a flowchart showing the operation of the transfer guidance system according to the second embodiment. FIG. 7A shows the operation on the portable radio device 90 side, and FIG. 7B shows the operation on the information center device 80 side. Is shown.

First, the operation of the portable wireless device 90 will be described.
In FIG. 7A, in step S101, the user of the portable wireless device 90 inputs a departure place and a destination from the input operation unit 19, and instructs a route search. The control unit 17 is a wireless unit 1
2 is operated, and the input departure place and destination are used as conditions for route search, and the wireless line 93, base station 91, communication line 9
2 to the information center device 80 (step S1).
02). Hereinafter, the portable wireless device 90 to the information center device 80
When information or the like is transmitted to the server, the same operation as described above is performed, and thus the detailed description will not be repeated.

A route search is performed on the information center device 80 side based on the transmitted condition. However, when there are a plurality of search result routes as described later, the searched plurality of routes are transmitted from the information center device 80 to the portable wireless communication device. Device 90. In step S103, as described above, the information center device 8
If a plurality of routes are transmitted from 0, step S10
4 and a plurality of routes from the information center device 80
The wireless unit 12 is operated and received via the communication line 92, the base station 91, and the wireless line 93. The control unit 17 causes the display unit 18 to display the plurality of received routes. Hereinafter, when information and the like transmitted from the information center device 80 to the portable wireless device 90 are received and displayed, the same operation as described above is performed, and thus the detailed description will not be repeated. The user selects one of the displayed routes and transmits it to the information center device 80 (step S105). The station on the route selected in step S105 and its group information are received from the information center device 80 and stored in the storage unit 16 (step S106).

At step S103, the information center device 80
If a plurality of routes are not transmitted from the information center device 80, one route searched by the information center device 80, the station on the route, and the group information thereof are received from the information center device 80 and stored in the storage unit 16 (step S106). ). Here, the station set information indicates information including the signal level and channel of the base station signal at the station, which is associated with each station, as described above.

In step S107, signals from the base station 91 and other nearby base stations are received, and the reception level and channel of the received signal are compared with the information stored in step S106 to determine the current position. Determine the station. The operation for determining this position is described in Embodiment 1.
Since the operation is the same as that of the portable wireless device, detailed description will not be repeated.

By displaying the station name of the station determined in step S107 on the display section 18, the user can know the current position. If a plurality of stations are determined in step S107 in step S108, step S1
In step 09, the user selects and determines one station using the instruction input key 21 (step S109). The determined station name is transmitted to the information center device 80 in order to receive the information on the determined station (step S110).

If one station is determined in step S108, the user confirms the station name and transmits it to the information center device 80 (step S110). At this time, if one station is determined by setting in advance, if the station name is automatically transmitted to the information center device 80, user convenience is improved. Step S
At 111, the information about the station transmitted from the information center device 80 is received and displayed on the display unit 18.

The position determination in step S107 operates when the level fluctuation detecting section 20 determines that the fluctuation of the reception level is smaller than the predetermined value, and automatically transmits the determined station to the information center apparatus 80. Then, as described above, the stop or low-speed movement of the portable wireless device can be detected based on the determination of the reception level fluctuation, so that the above-described operation is performed in accordance with the arrival of the transportation system on which the user is riding at the station. be able to. Thereby, the user can obtain appropriate information in a timely manner.

Next, the operation of the information center device 80 will be described. In FIG. 7B, in step S201, a departure point and a destination transmitted from the portable wireless device 90 are received as conditions, and a route search is started using these conditions. The group information selection unit 83 searches for a route based on a condition by a predetermined method (step S202). In step S203, if a plurality of routes have been searched in step S202, the process proceeds to step S204, and the plurality of routes are registered in the portable
Send to 0. Next, in step S205, the route selected from the portable wireless device 90 is received, and the process proceeds to step S206. If a plurality of routes have not been found in step S203, the process proceeds to step S206.

The set information selecting section 83 selects the station searched on the route searched in step S202 or the station on the route received in step S205 and its set information from the storage device 81 (step S206). And step S207
In, the selected information is transmitted to the portable wireless device 90.

In step S208, the portable wireless device 9
Upon receiving the station name transmitted from 0, the position information selecting unit 84 selects information on the station from the storage device 82. At this time, the position information selection unit 84 changes the type of information selected from the storage device 82 based on the condition given from the portable wireless device 90 side. For example, if the condition is the destination and the current time, an optimal train departure time after that time and information on the line from which the train departs are selected from the timetable of the destination area of the station. If the station is a transfer station based on the information at the time of the route search, a map of the station is also selected. Similarly, if the condition is that the station is the destination station, a peripheral map of the station is selected. Then, in step S209, the information selected in step S208 is transmitted to portable wireless device 90.

As described above, by using the communication information system of the second embodiment, the user of portable radio device 90 can obtain the current position and information suitable for the position.

Embodiment 3 Embodiment 3 of the present invention will be described with reference to the drawings. FIG. 8 is a configuration diagram of a transfer guidance system which is an information communication system according to Embodiment 3 of the present invention. The transfer guidance system includes an information center device 80 as a server, a base station 91 capable of communicating with the information center device 80 via a communication line 92, and a portable wireless device 90 capable of communicating with the base station 91 via a wireless line 93. Have been.

In the internal function block of the portable wireless device 90, reference numeral 10 denotes a portable wireless device main body, and reference numeral 11 denotes an antenna for communication with the base station 91, which is provided on the portable wireless device main body 10. Inside the portable wireless device main body 10, a wireless unit 12, a reception level measuring unit 13, a level fluctuation detecting unit 20, a channel recognizing unit 14, a display unit 18, an input operating unit 19, and an instruction input key 21 are integrated. Is provided with a control unit 17.

The radio unit 12 is connected to the antenna 11,
A signal transmitted from the base station is received, and a signal is transmitted to the base station. The reception level measurement unit 13 is connected to the radio unit 12 and measures the reception level of a reception signal received by the radio unit 12. Channel recognition unit 14 connected to radio unit 12
Recognizes the channel of the received signal based on the frequency of the received signal received by the radio unit 12 or based on information from the control unit 17. The level change detection unit 20 is connected to the reception level measurement unit 13 and detects a temporal change in the reception level measured by the reception level measurement unit 13. If the detected fluctuation is smaller than the predetermined value, the controller 17 is notified of the fact. The display unit 18 displays the contents of the input from the input operation unit 19, the station name as the position received from the information center device 80, information on the station, and the like under the control of the control unit 17. The input operation unit 19 is configured to include a numeric keypad and a function key for performing an input operation of a departure place, a destination, and the like, a communication operation, and the like, and outputs a signal based on the input contents to the control unit 17. The instruction input key 21 instructs the position displayed on the display unit 18 to receive position information, which is information on the position, from the information center device 80.

The information center device 80 includes a storage device 81 as a position-level storage unit, a storage device 82 as a position-information storage unit, a group information selection unit 83, a position information selection unit 84, a storage unit 85, and a position determination unit. 86. The storage device 81 stores a position and a signal level of a base station signal at the position,
A plurality of channels indicating the frequency of the base station signal are stored as a set. That is, in the third embodiment, the above-described station shown in FIG. 2 and the signal level and the channel of the base station signal at the station are stored in the storage device 81. The set information selecting unit 83 specifies a route by a predetermined method based on given conditions, for example, a departure place and a destination, and selects a station on the route from the storage device 81. This predetermined method can be realized using a method similar to a known technique executed by, for example, transfer guidance software. When a plurality of routes are specified, these routes are transferred to the communication line 92 and the base station 9.
1. A station on the route, which is transmitted to the portable wireless device 90 via the wireless line 93 and is selected and returned by the user of the portable wireless device 90, is selected from the storage device 81. The selected station and the signal level and channel of the base station signal stored as a pair with the selected station are stored in the storage unit 85.

The position determining unit 86 compares the reception level and the channel information transmitted from the portable wireless device 90 to the information center device 80 with the contents stored in the storage unit 85, and determines a predetermined value from the stations stored in advance. Is selected and specified as the position of the portable wireless device 90. For example, the portable wireless device 90
, The reception level of the base station A obtained from is 49 dBμ, and the channel is 100 ch, the station 1, the station 2, the station 3,
The difference between each signal level corresponding to 100 ch of the station 4 and the reception level 49 dBμ is calculated, and the station 2 at which the difference is minimum is specified as the position of the portable wireless device 90.

When the portable radio device 90 performs the above-described peripheral zone level detection and the reception levels for a plurality of channels are transmitted to the information center device 90, the reception levels corresponding to the plurality of channels stored in the storage unit 85 are respectively corresponded. If the difference between the signal level and the received signal level is compared and the difference is determined, and the station where the sum of the differences is minimized is specified as the position, the position is specified based on the reception levels of multiple channels, so that the accuracy is improved. There is.

The storage device 82 stores information on positions in association with each position. In the third embodiment, a timetable of transportation available at the station, a map of the station and the vicinity of the station, a departure line, a gate, and the like are stored as information. The position information selection unit 84 selects information from the storage device 82 based on the position obtained by the position determination unit 86 and the given condition, and transmits the information to the portable wireless device 90. For example, if the location is the name of a train station and the given condition is a destination, a timetable for the destination local area is selected from the timetable stored in association with the station. If the current time information is also given, an optimal departure time of the train after that time and information on the line from which the train departs are selected from the timetable. If the station is a transfer station, a map of the station is also selected and transmitted.

Next, the operation will be described. FIG. 9 is a flowchart showing the operation of the transfer guidance system according to the third embodiment. FIG. 9 (a) shows the operation of the portable wireless device 90, and FIG. 9 (b) shows the operation of the information center device 80. Is shown.

First, the operation of the portable wireless device 90 will be described. In FIG. 9A, in step S301, the user of the portable wireless device 90 inputs a departure place and a destination from the input operation unit 19, and instructs a route search. The control unit 17 operates the wireless unit 12 to transmit the input departure place and destination as conditions for route search to the information center device 80 via the wireless line 93, the base station 91, and the communication line 92 (step S302). . Hereinafter, when information or the like is transmitted from portable wireless device 90 to information center device 80, the same operation as described above is performed, and thus detailed description will not be repeated. The information center device 80 performs a route search based on the transmitted condition, and the searched route is transmitted from the information center device 80 to the portable wireless device 90. In step S303, the route from the information center device 80 is set to the communication line 92, the base station 9
1. The wireless unit 12 is operated and received via the wireless line 93. The control unit 17 causes the display unit 18 to display the received route. Hereinafter, when information and the like transmitted from the information center device 80 to the portable wireless device 90 are received and displayed, the same operation as described above is performed, and thus the detailed description will not be repeated. The user selects one of the displayed routes and sends it to the information center device 80 (step S304).

In step S 305, signals from base station 91 and other nearby base stations are received, and the reception level and channel of the received signal are transmitted to information center device 80. As described later, the information center device 80 determines a station based on the reception level and the channel, and transmits the station name to the portable wireless device 90. In step S306, the user can know the current position by receiving the station name of the station determined from the information center device 80 and displaying it on the display unit 18. The user determines the station using the instruction input key 21, and transmits the determined station name to the information center device 80 in order to receive information on the station (step S307). Next, in step S308, the information about the station determined and transmitted in step S307 is received from the information center device 80 and displayed on the display unit 18.

By setting in advance, the operation of step S307 may be omitted, and the station name determined from the information center device 80 and the information on the station may be simultaneously received and displayed. The performance is improved.

Further, if step S305 is executed when the level fluctuation detecting section 20 determines that the fluctuation of the reception level is smaller than the predetermined value, the reception level having high measurement accuracy is transmitted to the information center apparatus 80. The information center device 80 can determine a position with high accuracy based on the information, so that an accurate position can be obtained. Furthermore, as described above, the stop or low-speed movement of the portable wireless device can be detected based on the determination of the reception level fluctuation, so that the above-described operation can be performed in accordance with the arrival of the user on the transportation system at the station. . Thereby, the user can obtain appropriate information in a timely manner.

Next, the operation of the information center device 80 will be described. In FIG. 9B, in step S401, a departure point and a destination transmitted from the portable wireless device 90 are received as conditions, and a route search is started using these conditions. The set information selecting unit 83 searches for a route by a predetermined method based on the condition (step S402), and transmits the searched route to the portable wireless device 90 (step S403).

Next, in step S404, the route selected and transmitted by the portable wireless device 90 is received. The group information selecting unit 83 selects the station on the route and the group information received in step S404 from the storage device 81, and stores them in the storage unit 86 (step S405). Here, the station group information indicates information including the signal level and the channel of the base station signal at the station, as described above.

As described above, portable radio device 90 receives signals from base station 91 and other base stations, and changes the reception level and channel of the received signal to information center device 8.
Send to 0. In step S406, the reception level and the channel are received from the portable wireless device 90, and the position determination unit 8
6 determines the station as the current position of the portable wireless device 90 by comparing the reception level and the channel with the contents stored in the storage unit 85. Specifically, the reception level is compared for each same channel to obtain a difference, and this is repeated for each channel, and the total of the difference is calculated for each station. Then, the station having the smallest calculated difference is specified as the position.

In step S407, step S4
The station name of the station determined in 06 is transmitted to the portable wireless device 90.
As described above, the portable wireless device 90 displays this station name,
The user knows the current position, determines the station, and transmits the station name to the information center device 90.

In step S408, the portable radio 9
Upon receiving the station name transmitted from 0, the position information selecting unit 84 selects information on the station from the storage device 82. At this time, the position information selection unit 84 changes the type of information selected from the storage device 82 based on the condition given from the portable wireless device 90 side. For example, if the condition is the destination and the current time, an optimal train departure time after that time and information on the line from which the train departs are selected from the timetable of the destination area of the station. If the station is a transfer station based on the information at the time of the route search, a map of the station is also selected. Similarly, if the condition is that the station is the destination station, a peripheral map of the station is selected. In step S409, the information selected in step S408 is transmitted to portable wireless device 90.

By setting in advance, the operations in steps S407 and S408 are omitted, and
In step S409, information on the station determined in step S406 may be selected, and the station name and the information on the selected station may be transmitted simultaneously. In this case, the convenience of the user is improved in response to the operation of the portable wireless device 90 described above.

As described above, by using the communication information system of the third embodiment, the user of portable radio device 90 can use the portable radio device having a simpler configuration and simpler control to determine the current position and the current position. Information suitable for the location can be obtained.

[0084]

As described above, the portable radio device according to the first aspect of the present invention has a configuration in which a position is determined from a plurality of predetermined positions using the reception level of a signal from a base station. Therefore, the position can be specified with a simple configuration and simple control.

Further, the portable wireless device according to the second and third aspects of the present invention has a configuration in which information on the determined position is obtained from the server, so that the position can be specified with a simple configuration and simple control. Information about the location can be obtained.

Further, the portable radio device according to claim 4 of the present invention has a configuration in which a position is determined from a plurality of predetermined positions using the reception level of the signal from the base station and the channel. The position can be specified more accurately with a simple configuration and simple control.

In the portable wireless device according to the fifth aspect of the present invention, the position is determined when the reception level fluctuation of the signal from the base station is small. Therefore, the position is determined by a simple configuration and simple control. Can be specified more accurately.

In the information communication system according to the sixth aspect of the present invention, the server stores position information on a predetermined position, and the portable radio device uses the reception level of a signal from the base station to determine the position information in advance. The location is determined from a plurality of locations, and information on the location is obtained from the server. Therefore, the location of the portable wireless device can be specified with a simple configuration and simple control, and information on the location can be obtained. Can be.

In the information communication system according to claims 7 and 9 of the present invention, the server stores a predetermined position and a signal level of the base station signal at the position as a set, and Is configured to obtain the storage information selected from the server, so that the portable wireless device can be further simplified.

Further, in the information communication system according to claim 8 of the present invention, the server is configured to select predetermined position information based on the position determined as the condition information, so that appropriate information regarding the position can be obtained. Can be.

Further, the portable wireless device according to the tenth aspect of the present invention transmits the reception level and the channel of the signal from the base station to the server and receives the position determined from the server. The position can be specified by a simple configuration and simple control, and information on the position can be obtained.

In the information communication system according to the eleventh aspect of the present invention, the server determines a position from a plurality of predetermined positions by using a reception level and a channel transmitted from the portable wireless device, and Since the wireless device is configured to obtain the information on the position determined from the server, it is possible to specify the position of the mobile wireless device and obtain information on the position with a mobile wireless device having a further simple configuration and simple control. it can.

According to the position determining method of the twelfth aspect of the present invention, the position of the portable wireless device can be specified by simple control.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of a portable wireless device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing contents stored in a storage unit included in the portable wireless device according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a route and base stations near the route according to the first embodiment of the present invention.

FIG. 4 is a timing chart showing reception level detection timing according to Embodiment 1 of the present invention.

FIG. 5 is a diagram showing storage contents of a storage unit included in the portable wireless device according to the first embodiment of the present invention.

FIG. 6 is a configuration diagram of an information communication system according to a second embodiment of the present invention.

FIG. 7 is a flowchart showing an operation of the information communication system according to the second embodiment of the present invention.

FIG. 8 is a configuration diagram of an information communication system according to a third embodiment of the present invention.

FIG. 9 is a flowchart showing an operation of the information communication system according to the third embodiment of the present invention.

FIG. 10 is a system configuration diagram of a conventional information communication system.

[Explanation of symbols]

 REFERENCE SIGNS LIST 12 wireless unit 13 reception level measuring unit 14 channel recognizing unit 15 position determining unit 16 storage unit 20 level fluctuation detecting unit 21 instruction input key (instruction input unit) 80 information center device (server) 81 storage device (position-level storage unit) 82 Storage Device (Position-Information Storage Unit) 83 Set Information Selection Unit 84 Position Information Selection Unit 86 Position Determination Unit 90 Portable Radio 91 Base Station

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5H161 AA01 BB20 CC13 CC20 DD21 DD50 GG01 GG03 GG11 GG23 5K067 AA21 BB04 DD20 EE02 EE10 FF03 FF05 FF23 HH23 JJ52 JJ54 KK15

Claims (12)

[Claims] A radio unit for transmitting and receiving to and from a base station; a reception level measuring unit for measuring a reception level of a reception signal transmitted from the base station and received by the radio unit; a plurality of predetermined positions; A storage unit that stores the signal level of the base station signal at each of the plurality of locations as a set, and compares the reception level measured by the reception level measurement unit with the signal level stored in the storage unit, from among the plurality of locations. A portable wireless device comprising a position determining unit for determining at least one position. 2. The wireless unit transmits a position determined by the position determining unit to a server via the base station,
The portable wireless device according to claim 1, wherein the portable wireless device receives position information on the position stored in the server. 3. When a plurality of positions are determined by the position determining unit, the position determining unit further includes an instruction input unit that specifies one position, and the wireless unit transmits the position specified by the instruction input unit to the server. 3. The portable wireless device according to claim 2, wherein the portable wireless device transmits. 4. The apparatus further comprising: a channel recognition unit that recognizes a channel of the received signal, wherein the storage unit stores the signal level of the base station signal in association with a plurality of channels, The portable wireless device according to claim 1, wherein the reception level and the signal level corresponding to the same channel are compared to determine at least one of the plurality of positions. 5. A level fluctuation detecting section for detecting a fluctuation of the received signal level, wherein when the fluctuation is smaller than a predetermined value,
The portable wireless device according to claim 1, wherein the position determining unit determines a position. 6. An information communication system comprising: a server provided with a position-information storage unit for storing position information relating to a predetermined position; and a portable wireless device capable of communicating with the server via a base station. A wireless unit that performs transmission and reception with the base station; a reception level measurement unit that measures a reception level of a reception signal transmitted from the base station and received by the wireless unit; a plurality of predetermined positions And a storage unit that stores the signal level of the base station signal at each of the plurality of positions as a set, compares the reception level measured by the reception level measurement unit with the signal level stored in the storage unit, Comprising a position determination unit that determines at least one position from among, and transmitting the position determined by the position determination unit in the wireless unit to the server, Serial server location - information communication system and receives the location information about the position obtained from the information storage unit. 7. A position-level storage unit for storing a plurality of predetermined positions and a signal level of a base station signal at each of the plurality of positions as a set, wherein the server stores condition information from the portable wireless device. The portable wireless device further includes a set information selecting unit that selects predetermined set information from the set information stored in the position-level storage unit based on the position-level storage unit. The information communication system according to claim 6, wherein the group information selected by the group information selection unit of the server is received, and the group information is stored in the storage unit. 8. A position for selecting predetermined position information from the position information stored in the position-information storage unit based on the condition information transmitted from the portable wireless device and the determined position. The information communication system according to claim 7, further comprising an information selection unit, wherein the portable wireless device receives the position information selected by the position information selection unit in the wireless unit. 9. The condition information includes a departure place and a destination,
The information communication system according to claim 7, wherein the position includes a base position of the transportation, and the position information includes departure time information of the transportation. 10. A radio unit for transmitting and receiving to and from a base station, a reception level measuring unit for measuring a reception level of a reception signal transmitted from the base station and received by the radio unit, a channel for recognizing a channel of the reception signal A recognition unit, wherein the wireless unit transmits the reception level and the channel to the server via the base station, and based on the reception level and the channel in the server, the wireless unit is determined from a plurality of positions stored in advance. A portable wireless device for receiving a position and a position information relating to the position. 11. An information communication system including a server and a portable wireless device capable of communicating with the server via a base station, the server comprising: a plurality of predetermined locations; and a base station at each of the plurality of locations. A position-level storage unit that stores a signal level and a channel of a station signal as a set, based on a reception level and a channel transmitted from the portable wireless device, compares the reception level and the signal level corresponding to the same channel. A position determination unit that determines at least one position from among the plurality of positions, a position-information storage unit that stores position information regarding a predetermined position, wherein the portable wireless device transmits and receives data to and from the base station. A radio section for performing; a reception level measurement section for measuring a reception level of a reception signal transmitted from the base station and received by the radio section; A channel recognition unit for recognizing a channel of the signal, wherein the radio unit transmits the reception signal and the channel to the server, and the position-information based on the position determined by the position determination unit of the server and the position. An information communication system for receiving position information obtained from a storage unit. 12. A position determining method for determining a position of a portable wireless device capable of communicating with a base station, comprising a plurality of predetermined positions and a signal level of a base station signal at each of the plurality of positions. A first step of storing; a second step of measuring a reception level of a reception signal transmitted from the base station and received by the portable wireless device; comparing the reception level with the signal level; A third step of determining at least one position from the positions.