JP2008187483A - Wireless communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow easy communication between a plurality of persons who are in a moving body, using a plurality of communication terminals provided to the moving body. <P>SOLUTION: The wireless communication system comprises a control center and a moving body. The moving body comprises a display part, a plurality of communication terminals, a wireless communication means for executing a wireless communication process between an external device and one or more communication terminals among the plurality of communication terminals, an internal communication means for executing communication process between two or more communication terminals among the plurality of communication terminals, and a switching means for switching between the state where wireless communications are performed with the wireless communication means and the state where communications are performed with the internal communication means. The display part displays a list of specified items according to the operation on any of the plurality of communication terminals. According to the operation for selecting any one of the listed items, a detailed information about the item is displayed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wireless communication system including a mobile body provided with wireless equipment, and more particularly to a wireless communication system including a display unit on a mobile body and performing communication according to information displayed on the display unit.

  For example, in a firefighting digital wireless system, which is an example of a disaster prevention digital wireless system, a wireless facility is installed in a vehicle such as a fire engine or an ambulance, and a person existing in the vehicle and a person existing in an external disaster prevention center, etc. The wireless communication is performed by the wireless communication (for example, see Patent Document 1 and Non-Patent Documents 1 and 2).

Japanese Patent Laid-Open No. 9-172661 ARIB STD-T61, “Narrowband Digital Communication System (SCPC / FDMA)”, Japan Radio Industry Association ARIB STD-T79, "Municipal digital mobile communication system", Japan Radio Industry Association

However, the system as described above is still insufficiently studied, and further development is required. In particular, it has been necessary to improve a technique for providing a vehicle with a plurality of communication terminals and performing communication among a plurality of persons using the plurality of communication terminals.
The present invention has been made in view of such conventional circumstances, such as a wireless communication system capable of facilitating communication among a plurality of persons existing in a moving body using a plurality of communication terminals provided in the moving body. The purpose is to provide.

  In order to achieve the above object, according to the first aspect of the present invention, in the wireless communication system having a management center and a mobile body, the mobile body is a display unit, a plurality of communication terminals, and one of the plurality of communication terminals. Wireless communication means for executing wireless communication processing between two or more communication terminals and an external device; and internal communication means for executing communication processing between two or more communication terminals of the plurality of communication terminals; Switching means for switching between a state in which wireless communication by the wireless communication means is performed and a state in which communication by the internal communication means is performed, and the display unit is predetermined according to an operation of any of the plurality of communication terminals. The item list is displayed, and detailed information of the item is displayed in accordance with an operation for selecting one of the items displayed in the list.

  In order to achieve the above object, in claim 2, in the wireless communication system according to claim 1, the predetermined item is disaster prevention or fire fighting related information, and information indicating a contact address of the disaster prevention or fire fighting related information Is included in the detailed information.

  In order to achieve the above object, according to a third aspect of the present invention, in the wireless communication system according to the second aspect, by selecting a contact information for the disaster prevention or fire fighting related information in accordance with any operation of the plurality of communication terminals. Wireless communication with the contact is performed.

  In order to achieve the above object, according to claim 4, in the wireless communication system according to any one of claims 1 to 3, the mobile body includes a radio equipment body installed on the mobile body, A portable wireless device that is detachable from the wireless equipment body, the portable wireless device having portable wireless communication means for performing wireless communication processing with the external device; and In the portable wireless device, the same information is set as call information from the external device.

  As described above, according to the wireless communication system and the like according to the present invention, the mobile unit performs a wireless communication process between one or more of the plurality of communication terminals and an external device. Since the state of executing communication processing between two or more of the plurality of communication terminals is switched, for example, communication between a plurality of persons existing in a mobile object is facilitated. In particular, a great effect can be exhibited in a fire engine or an ambulance.

Embodiments according to the present invention will be described with reference to the drawings.
First, an example of a system to which the present invention can be applied will be described with reference to FIGS.
FIG. 1 shows a configuration example of a firefighting digital radio system which is an example of a disaster prevention digital radio system according to an embodiment of the present invention.
The firefighting digital wireless system of this example includes a disaster prevention center including a command device (command console) 71 having an operation unit 81, a display unit 82, and a storage unit 83, a line control device (wireless line control device) 72, and a plurality of disaster prevention centers. P base station apparatuses G1 to Gp, a plurality of p remote controllers H1 to Hp, and a plurality of q mobile station apparatuses I1 to Iq.
Each of the mobile station devices I1 to Iq includes an in-vehicle device 91 and a portable device 92. The mobile station device I1 to Iq includes a table 93 for placing the portable device 92. The in-vehicle device 91 includes a plurality of handsets 51. It is connected.

The firefighting digital wireless system of this example can be used for regional disaster prevention in each prefecture, for example. In this example, the command device 71 and the line control device 72 are installed in the disaster prevention center, and the respective base station devices G1 to Gp are installed in the fire department or on the outside of a school, library, building, street, mountain, etc. The remote controllers H1 to Hp are installed in the fire department, and the mobile station devices I1 to Iq are installed in a vehicle such as a fire truck or an ambulance.
In each vehicle, for example, an in-vehicle device 91 and a table 93 are mounted and attached to each vehicle, and the portable device 92 can be carried by a person or placed on the table 93.
Further, the handset 51 is cable-connected to the in-vehicle device and is disposed in the vicinity of the front seat and the rear seat in the vehicle so that a person in the vehicle can be used as an operation terminal of the in-vehicle device.

The outline | summary of the operation | movement performed in the firefighting digital radio system of this example is shown.
In the command device 71, the operation unit 81 is operated by a person (commander) to input various instructions and information, and the display unit 82 displays and outputs various information to be displayed on the screen. The stored storage unit 83 stores various information to be stored.
The commander can transmit various instructions from the command device 81 to the subordinate devices (line control device 72, base station devices G1 to Gp, remote controllers H1 to Hp, mobile station devices I1 to Iq). Further, the command device 71 can display various information received from the devices under its control, and necessary information is held in the storage unit 83.

The line control device 72 is connected to the command device 71 and the plurality of base station devices G1 to Gp, for example, by wire, relays communication between them, and performs various controls relating to a wireless line and the like.
Each base station apparatus G1 to Gp communicates wirelessly with mobile station apparatuses I1 to Iq existing in the communication area, and communicates with each remote controller H1 to Hp connected by wire.
Each of the remote controllers H1 to Hp communicates with each of the base station devices G1 to Gp connected by wire, and has, for example, a function similar to that of the mobile station device, and is operated by a person (signer). Is done.
Each of the mobile station devices I1 to Iq communicates wirelessly with the base station devices G1 to Gp where the mobile station devices I1 to Iq are registered.

FIG. 2 shows a block diagram of the in-vehicle device 91 and the portable device 92 according to the embodiment of the present invention.
The in-vehicle device 91 includes an antenna 101, a radio unit 102, a key operation unit 103, a display unit 104, a microphone unit 105, a speaker unit 106 having, for example, two speakers, a memory 107, a portable interface 108, A control unit 109 is provided, and a plurality of handsets 51 are provided.
The portable device 92 includes an antenna 111, a wireless unit 112, a key operation unit 113, a display unit 114, a microphone unit 115, a speaker unit 116, a memory 117, an in-vehicle interface 118, and a control unit 119. Yes.
Here, the internal processing function of the in-vehicle device 91 and the internal processing function of the portable device 92 are different in that the in-vehicle device 91 includes, for example, a plurality of speakers and a handset is connected. The outline is the same.

In the in-vehicle device 91, the wireless unit 102 wirelessly transmits and receives signals to and from the base station apparatuses G1 to Gp via the antenna 101, the key operation unit 103 receives a key operation from a person (user), and the display unit 104 receives information. , The microphone unit 105 inputs voice, the speaker unit 106 outputs voice, the memory 107 stores, for example, call information (ID information) that is a telephone number to be called, and the portable interface 108 is a portable device 92. For example, an optical signal communicates with the vehicle-mounted interface 118, and the control unit 109 performs various controls.
Further, the functions of the microphone unit 105 and the speaker unit 106 are provided in the handset 51, and voice input and output can be performed by the handset.
Here, the speaker unit 106 is installed in the front seat and the rear seat of the vehicle, and the handset 51 is also installed in the front seat and the rear seat, and communication between the handsets can be performed under the control of the control unit 109. .

  In the portable device 92, the wireless unit 112 wirelessly transmits and receives signals to and from the base station devices G1 to Gp through the antenna 111, and the key operation unit 113 performs key operations from a person (user) as in the above-described in-vehicle device. Receiving, display unit 114 displays information, microphone unit 115 inputs voice, speaker unit 116 outputs voice, and memory 117 stores call information (ID information) that is a telephone number for calling, for example. The in-vehicle interface 118 communicates with the portable interface 108 of the in-vehicle device 91 by, for example, an optical signal, and the control unit 119 performs various controls.

Here, the same information is set as the call information (ID information) stored in the memory 107 of the in-vehicle device 91 and the call information (ID information) stored in the memory 117 of the portable device 92.
The in-vehicle device 91 and the portable device 92 can communicate between the portable interface 108 and the in-vehicle interface 118 in a state where the portable device 92 is placed on the pedestal 93. Communication is not performed between the portable interface 108 and the vehicle-mounted interface 118 in a state where the portable interface 108 is removed from the table 93 and carried.

In this example, in a state where the portable device 92 is set (placed) on the pedestal 93, the portable device 92 does not particularly function, and reception from the base station devices G1 to Gp, and base station devices G1 to Gp are performed. Transmission, key input, display output, voice input, voice output, etc. are all performed by the in-vehicle device 91.
On the other hand, in a state where the portable device 92 is detached from the pedestal 93, the portable device 92 receives from the base station devices G1 to Gp, transmits to the base station devices G1 to Gp, key input, display output, and audio. Input, audio output, and the like are all performed. In this state, the vehicle-mounted device 91 performs reception from the base station devices G1 to Gp, display output, and audio output only. That is, the same call information (ID information) is set in the in-vehicle device 91 and the portable device 92, and reception can be performed simultaneously by both, but transmission is performed by either one. .

Note that the portable device 92 removed from the pedestal 93 performs wireless communication directly with the base station devices G1 to Gp without using the in-vehicle device 91. This point is considered to be different from a handset of a normal parent-child phone.
In addition, the state in which the portable device 92 is set on or removed from the table 93 is detected by the vehicle-mounted device 91 or the portable device 92, and the respective control units 109 and 119 according to the state at that time. Executable functions (or non-executable functions) are set.

The in-vehicle device 91 has a plurality of speakers and handsets. For example, when the portable device 92 is detached from the pedestal 93, the content of the call transmitted from the base station devices G1 to Gp to the portable device 92. Can be output from the speaker or the handset, and the content of the call transmitted from the portable device 92 to the base station apparatuses G1 to Gp can be output from the speaker or the handset.
As an example, mobile station devices I1 to Iq are provided in a fire engine or the like, and the fire engine or the like is at a site such as a fire, and a member goes out of the fire engine or the like with a portable device 92. When the other member is active and waits inside the fire engine or the like, the other member listens to the sound output from the in-vehicle device 91, and thereby, between the portable device 92 and the base station devices G1 to Gp. You can listen to the content of calls made at.
For example, different frequencies are used for downlink communication from the base station apparatuses G1 to Gp to the mobile station apparatuses I1 to Iq and uplink communication from the mobile station apparatuses I1 to Iq to the base station apparatuses G1 to Gp. .

  In addition, as communication between the base station devices G1 to Gp (for example, the command device 71) and the mobile station devices I1 to Iq, for example, a configuration in which press talk communication is performed may be used. A configuration in which two-way simultaneous communication such as a normal mobile phone is performed may be used, or a configuration in which communication in another mode is performed may be used. Also, information for notification is transmitted from the base station devices G1 to Gp to the mobile station devices I1 to Iq, and the mobile station devices I1 to Iq (automatically) receive the information in response to reception of the information. A configuration that outputs data can also be used.

In the case of a fire engine, for example, press talk communication is used, a group communication (for example, group communication on a business link) is performed by calling mobile station devices I1 to Iq of a plurality of fire engines from the command device 71, and this group By carrying out a press talk communication in the inside, it is possible to perform the same fire site treatment by these plural fire engines.
In the case of an ambulance, for example, communication such as a normal telephone is used, and a call can be performed by speaking (calling) and receiving.
In addition, for example, the vehicle-mounted device 91 and the portable device 92 can be provided with a function capable of performing wireless communication even at a distance between the vehicle-mounted device 91 and the portable device 92. In this case, as an example, when the portable device 92 is taken out of the vehicle in a dead zone such as in a tunnel, the in-vehicle device 91 and the portable device 92 can be used to communicate with each other using a transceiver.

In the following embodiments, examples of devices that can be applied to the mobile station devices I1 to Iq provided in vehicles such as fire engines and ambulances will be shown.
For example, in a fire engine or an ambulance, the front seat and the back seat are often separated, and it is often difficult to directly talk between people in these seats.
Therefore, wireless equipment is provided at the front seat of the vehicle, the first handset is provided at the front seat, and the second handset is provided at the rear seat. Then, a person in the front seat uses the first handset, and a person in the back seat uses the second handset, thereby making it possible to make a call between these handsets. In addition, wireless communication can be performed between the first handset or the second handset and an external base station device via the wireless unit 102 of the in-vehicle device.
For example, a handset having a microphone and a speaker is used. However, as another configuration example, only a microphone or only a speaker can be used.

In FIG. 3, the block structural example of the vehicle equipment 91 of this example which concerns on embodiment of this invention is shown.
The in-vehicle device of this example includes a handset 51 for calling, a speaker 106, a switching box 53, and digital wireless equipment 54. The switching box 53 and the digital radio equipment 54 are blocks corresponding to the radio unit 102 and the control unit 109 of FIG. 2 described above.
Further, the function of the switching unit 53 may be included as a function of the control unit 109, or the switching unit may be configured in hardware and controlled by the control unit 109.
In this example, the handset 51, the switching box 53, and the digital radio equipment 54 are installed in the front part of the vehicle, and the speaker 52 is installed in the rear part of the vehicle.

The handset 51 has a microphone (microphone) 51a and a speaker 51b.
The switch box 53 includes a switch 61 for switching control and an audio signal amplifier (not shown).
The digital radio equipment 54 includes an A / D (Analog to Digital) conversion unit 71, a D / A (Digital to Analog) conversion unit 72, an audio codec unit 73, a digital signal processing unit 74, a transmission / reception unit 75, An antenna 76 is provided.

The changeover switch 61 is connected to the microphone 51a of the handset 51 and the A / D converter 71 (connected to the communication side) and connected to the microphone 51a of the handset 51 and the speaker 52 (on the speaker side). Switch to connected state.
Here, the changeover switch 61 may be changed by, for example, a button provided on the changeover box 53 or the handset 51 being operated by a person, or a CPU provided in the digital radio equipment 54 or the like. Switching control may be automatically performed by a control unit (not shown).
Further, in the case of a configuration including a plurality of handsets 51, the selector switch 61 of the switching box 53 is provided, and when the microphone 51 a of any handset is input, the speaker 51 b of another handset is output. The switch is controlled to be

An example of the operation performed in the mobile station apparatus of this example is shown.
When wireless communication is performed by the handset 51, the changeover switch 61 of the changeover box 53 is set so as to be in the path shown in FIG. 3 (connected to the communication side), and the microphone 51a of the handset 51 and the A / D The conversion unit 71 is connected.
A person (user) existing at the front of the vehicle uses the handset 51 to input sound into the microphone 51a and listen to the sound output from the speaker 51b.
In this case, an audio analog signal input to the microphone 51 a of the handset 51 is input to the digital radio equipment 54 via the switching box 53, converted into a digital signal by the A / D conversion unit 71, and then converted by the audio codec unit 73. The audio signal is encoded, modulated by the digital signal processing unit 74, and wirelessly transmitted from the antenna 76 by the transmission / reception unit 75.
A signal (received signal) received by the transmission / reception unit 75 via the antenna 76 is demodulated by the digital signal processing unit 74, decoded by the audio codec unit 73, and converted into an analog signal by the D / A conversion unit 72. It is converted and input to the speaker 51 b of the handset 51. Thereby, the sound included in the received signal is output from the speaker 51 b of the handset 51.

When communicating in the same vehicle from the handset 51 installed at the front of the vehicle to the speaker 52 installed at the rear of the vehicle, for example, the switching box 53 installed at the front of the vehicle When the changeover switch 61 is manually operated by a person, the changeover switch 61 of the changeover box 53 is set so that another route (connected to the speaker side) is established, and the microphone 51a of the handset 51 and the speaker 52 are connected. Is done.
A person (user) existing at the front of the vehicle uses the handset 51 to input sound into the microphone 51a and listen to the sound output from the speaker 51b.
A person (user) existing at the rear of the vehicle listens to the sound output from the speaker 52.
In this case, an analog audio signal input to the microphone 51 a of the handset 51 is output from the speaker 52 via the switching box 53. Thereby, communication communication is performed from the person at the front of the vehicle to the person at the rear of the vehicle.

  Further, when a signal from a base station device or the like is wirelessly received by the digital wireless equipment 54 during communication between handsets (in this example, from the handset 51 to the speaker 52), as an example, the handsets In this case, it is possible to control the user to output sound, vibration, light, etc. to one or more (or all) handsets to notify the user. The switch 61 is forcibly switched to a path for performing wireless communication like the path shown in FIG. 3 (connected to the communication side), and communication between handsets is disconnected to enable wireless communication. Can be controlled.

  As described above, in the mobile station device of the present example, the wireless communication is performed with the handset 51 between the external base station device and the like, and the handset 51 installed at the front of the vehicle is installed at the rear of the vehicle. It is possible to switch between the state in which communication is communicated to the speaker 52 within the same vehicle, and work in a fire engine or an ambulance can be made more efficient.

  In this example, a vehicle such as a fire engine or an ambulance is used as the moving body, and the moving body is provided with a mobile station device (communication device). The mobile station device can be attached to and detached from the radio equipment body. It is comprised from the portable radio | wireless machine (in this example, illustration is abbreviate | omitted about the portable radio | wireless machine which has a portable wireless communication means).

Next, examples relating to the display unit according to the embodiment of the present invention will be described.
4 to 6 are diagrams showing various display examples according to the embodiment of the present invention. Here, an item (hospital) is selected and selected from the list information displayed on the in-vehicle display unit. By displaying contact information of information (in this example, hospital information) and switching the displayed contact information, a communication state with the information (in this example, a hospital) is established.

FIG. 4 shows an example displayed on the display unit connected to the vehicle-mounted device when the above-described mobile station device is mounted on an ambulance, for example. The initial screen is displayed.
If you need to check the status of the most recent hospital, for example, when you need to transport a sick person, etc., select “Recent hospital status search” in the figure, and touch “Check”. And the process moves to FIG.

FIG. 5 shows an example in which a specific medical subject in the selected hospital is displayed, for example. A subject to be searched is selected, and when the selection is made, the selected subject is highlighted (for example, the color changes. Inverted display, etc.).
When search start is selected (pressed), a search request is transmitted to the host computer.
If you want to cancel the search, select the “Suspend” button.

FIG. 6 shows an example in which when the host computer ends the search based on the selected subject, the search result of the subject in the hospital is received and the list is displayed.
Specifically, the searched hospital subjects are displayed, the current number of pages in the list display is shown, and the maximum number of pages listed is shown.
If the user wishes to continue searching for another subject, selecting “re-search” can return to the hospital subject selection screen.
When “end” is selected, the screen returns to the initial screen shown in FIG.
If you want to go back to the previous page or go to the next page, select “Previous page” or “Next page” respectively. In the case of “Previous page”, the current screen is the first page. In this case, it becomes invalid, and in the case of “next page”, it becomes invalid if the current screen is the maximum page.
In addition, for example, in the case of highlight display such as reverse display (white blank), other ambulances can indicate the hospital being transported, and when other ambulances are transported here, other ambulances are displayed. Indicates that the squad is being transported to the hospital and is highlighted until the emergency case ends.

As described above, when a predetermined subject of the latest hospital is selected, the number of emergency empty beds related to the hospital can be displayed, and subjects in the hospital can be displayed.
Moreover, the number of vacant beds etc. can also be displayed as needed.
If the telephone number information is displayed for the selected hospital or subject, the telephone communication to the hospital or subject is established by selecting (pressing) the telephone number.
Then, when the transfer to the hospital is determined, by selecting “Determine transfer hospital” to that effect, it is transmitted to the host computer and registered in the host computer.
In the establishment of the above-described telephone communication, the wireless communication itself is performed by the in-vehicle wireless device, but the call itself can be performed using a handset.

According to the embodiments of the present invention described above, necessary information can be displayed by performing wireless communication with the host computer by the in-vehicle wireless device and the handset connected thereto, and based on the display, the necessary information can be displayed. You can establish telephone communications.
Moreover, although the case where the mobile station apparatus was mounted in the vehicle of an automobile was shown in this Embodiment, it is also possible to mount a mobile station apparatus in various mobile bodies, such as a train and a ship, for example.

The structural example of the firefighting digital wireless system which is an example of the disaster prevention digital wireless system which concerns on embodiment of this invention. The block diagram of the vehicle equipment and portable device which concern on embodiment of this invention. The block structural example of the vehicle equipment of this example which concerns on embodiment of this invention. The example of a display screen of an embodiment of the present invention (an example displayed on a display unit connected to an in-vehicle device). The example of a display screen of the embodiment of the present invention (an example in which specific medical subjects are displayed). An example of a display screen according to an embodiment of the present invention (an example in which a search result of a subject in the hospital is received and a list thereof is displayed).

Explanation of symbols

1 .... Command device 2 .... Line control device 11 .... Operating unit 12, 34, 44 ... Display unit 13 .... Storage unit 21 ... Vehicle-mounted device 22 .... Portable device 23 ... Station, A1-An ... Base station device, B1-Bn ... Remote controller, C1-Cm ... Mobile station device, 31, 41 ... Antenna, 32, 42 ... Radio unit, 33, 43 ... Key Operation unit,
35, 45 .. Microphone part, 36, 46 .. Speaker part, 37, 47 .. Memory, 38 .. Portable interface, 39, 49 .. Control part, 48 .. In-vehicle interface.

Claims (4)

In a wireless communication system having a management center and a mobile unit,
The mobile body includes a display unit, a plurality of communication terminals,
Wireless communication means for executing wireless communication processing between one or more of the plurality of communication terminals and an external device;
Internal communication means for executing communication processing between two or more of the plurality of communication terminals;
Switching means for switching between a state in which wireless communication by the wireless communication unit is performed and a state in which communication by the internal communication unit is performed;
The display unit displays a list of predetermined items according to an operation of any of the plurality of communication terminals,
A wireless communication system, wherein detailed information of an item is displayed according to an operation of selecting any of the items displayed in the list. The wireless communication system according to claim 1, wherein
The predetermined item is disaster prevention or fire fighting related information,
A wireless communication system, wherein the detailed information includes information indicating a contact address of the disaster prevention or fire fighting related information. The wireless communication system according to claim 2,
A wireless communication system that performs wireless communication with a contact by selecting a contact for the disaster prevention or fire fighting related information according to an operation of any of the plurality of communication terminals. The wireless communication system according to any one of claims 1 to 3,
The mobile body includes a radio equipment body installed on the mobile body, and a portable radio that is detachable from the radio equipment body,
The portable wireless device has portable wireless communication means for executing wireless communication processing with the external device,
In the wireless equipment body and the portable wireless device, the same information is set as calling information from the external device,
A wireless communication system.

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