JP4178136B2 - Wireless communication system - Google Patents

Description

  The present invention relates to a wireless communication system, and more particularly to a wireless communication system that effectively uses a plurality of wireless devices operated with one wireless license.

  Digital mobile radio systems are known for disaster prevention, fire fighting or emergency use. As a wireless system used in this digital mobile wireless system, there is a wireless system that shares an in-vehicle wireless device mounted on a vehicle such as an automobile and a portable wireless device. In such a shared wireless system, the following method is generally used when using an in-vehicle wireless device installed in a vehicle and a portable wireless device used outside the vehicle.

  The first method is shown in FIG. In FIG. 6, 601 is an in-vehicle adapter, 602 is a portable radio (also referred to as a portable radio), 603 is an antenna for an in-vehicle radio, and 604 is an antenna for a portable radio. When the portable wireless device 602 is used in the vehicle, the portable wireless device 602 is mounted on the in-vehicle adapter 601 installed in the vehicle, and the antenna (antenna) is changed from the portable wireless device antenna 604 to the in-vehicle wireless device antenna 603. The radio wave is emitted from the antenna from the aerial line 603 for the in-vehicle wireless device and used as the in-vehicle wireless device. When the portable wireless device 602 is used outside the vehicle, the portable wireless device 602 (or portable wireless device) is removed from the in-vehicle adapter 601 as shown in FIG. It switches to the aerial line 604 and is used independently as the portable wireless device 602. However, as shown in FIG. 7, when the portable wireless device 602 is used outside the vehicle, there is a problem that a person in the vehicle or near the vehicle cannot grasp the usage status of the portable wireless device 602.

  The second method is shown in FIG. In FIG. 8, 801 is an in-vehicle wireless device, 802 is a portable wireless device, 803 is an antenna for on-vehicle wireless device, and 804 is an antenna for portable wireless device. In this case, the vehicle has two wireless facilities, an in-vehicle wireless device 801 and a portable wireless device 802. Therefore, since it can be used independently both inside and outside the vehicle, it is not necessary to know the usage status of each other, and the in-vehicle wireless device 801 and the portable wireless device 802 can be used freely even in an emergency. However, this method requires an independent radio license for each of the in-vehicle wireless device 801 and the portable wireless device 802. In addition, since two in-vehicle wireless devices 801 and portable wireless devices 802 are installed in the same vehicle, it is necessary to set different calling names in a wireless system that performs wireless calling with a calling name. There's a problem.

  Moreover, the radio | wireless machine (for example, refer patent document 1) has described the technique of the radio | wireless machine which can be used for both portable and vehicle-mounted.

  In addition, a radio telephone apparatus (see, for example, Patent Document 2) describes a technique regarding an in-vehicle telephone apparatus and a mobile telephone apparatus that can be connected thereto.

JP 11-46155 A JP-A-6-104826

  In the above-described prior art, in the first method, when the radio equipment is used outside the vehicle, there is a problem that the operation status of the user of the portable radio device cannot be understood by a person inside the vehicle. In the second method, Since two radio equipments are owned, a radio license is required for each of the two radio equipments. In a radio system that performs radio call using a call name, it is necessary to have different call names in the same vehicle. .

  An object of the present invention is to provide a wireless communication system in which usage conditions of a plurality of wireless devices can be easily understood.

  Another object of the present invention is to provide a wireless communication system that can use an in-vehicle wireless device and a portable wireless device with one wireless license.

  Still another object of the present invention is to provide a wireless communication system that can monitor the communication content of a wireless device in both portable wireless devices and in-vehicle wireless devices.

  The wireless communication system of the present invention includes at least one in-vehicle wireless device and at least one portable wireless device. The in-vehicle wireless device is a portable wireless device in which the in-vehicle wireless device and the portable wireless device are detachably mounted. The housing unit includes a vehicle unit, a portable communication control unit, and a portable wireless device connection recognition unit. The vehicle-mounted wireless device and the portable wireless device each have a control unit having a memory unit, and the memory unit includes a wireless license. And the portable wireless device connection recognition unit detects whether or not the unique information stored in the memory unit matches, and controls the in-vehicle wireless device and the portable wireless device control unit. Is configured to control the emission of radio waves from the in-vehicle wireless device and the portable wireless device based on the detection result of the portable wireless device connection recognition unit.

  In the wireless communication system of the present invention, the same unique information is stored in the memory unit of the in-vehicle wireless device and the portable wireless device, and further, the in-vehicle wireless device is stored in the memory unit of the in-vehicle wireless device and the portable wireless device. It is configured to store distinction information for distinguishing between a portable device and the portable wireless device.

  Further, in the wireless communication system of the present invention, when any one of the in-vehicle wireless device and the portable wireless device emits a radio wave, the distinction information of the wireless device that has emitted the radio wave is not emitted. It is configured to notify the radio.

  Further, in the wireless communication system of the present invention, the portable wireless device connection recognition unit detects a match between unique information of the in-vehicle wireless device and the portable wireless device, and the portable wireless device is used as the portable wireless device. When accommodated, the control unit of the portable wireless device prohibits the emission of radio waves from the portable wireless device, and when the portable wireless device is separated from the portable wireless device, the control unit of the on-vehicle wireless device It is configured to prohibit the emission of radio waves from the aircraft.

  Further, in the wireless communication system of the present invention, when the portable wireless device connection recognition unit detects a mismatch between the unique information of the in-vehicle wireless device and the portable wireless device, the in-vehicle wireless device and the control unit of the portable wireless device are The radio wave emission of the in-vehicle wireless device and the portable wireless device is controlled based on the discrimination information received from another wireless device.

  As described above, according to the present invention, it is possible to operate a plurality of wireless facilities such as an in-vehicle wireless device and a portable wireless device with one wireless license, and it is possible to easily grasp the operation status of the plurality of wireless facilities. There are features such as.

An embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a schematic diagram showing the system configuration of an embodiment of the present invention. 3, 301 is a base station, and 302-1 and 302-2,... 302-n are mobile stations such as vehicles. Note that the mobile station is collectively referred to as a mobile station 302. Reference numeral 302-2A denotes an in-vehicle wireless device mounted in the mobile station, and 302-2B denotes a portable wireless device. The in-vehicle wireless device 302-2A and the portable wireless device 302-2B form a pair to form the mobile station 302-2. is doing. Other mobile stations have similar configurations. Reference numeral 303 denotes a communication area where the base station 301 and each mobile station 302 can communicate. The communication method shown here is, for example, a press-talk communication method that uses two waves (duplex method) in the upstream and downstream directions. For example, the mobile station 302-1 and the portable radio 302-2B communicate with each other via the base station 301, and the frequency F is used for the uplink and the frequency f is used for the downlink. When the portable wireless device 302-2B and the mobile station 302-1 are communicating with each other, the other mobile stations 302 cannot emit radio waves. However, for example, voice (downlink f) from the base station can be monitored. Since this is defined in Japanese standards, the details are omitted.
In FIG. 3, in this case, mobile stations 302-1 and 302-n are configured such that the in-vehicle wireless device and the portable wireless device are integrated, that is, as shown in FIG. And the radio wave from 302-n is emitted from the antenna for onboard radio equipment. However, in the mobile station 302-2, the in-vehicle wireless device 302-2A and the portable wireless device 302-2B are separated, indicating that the portable wireless device 302-2B is currently communicating with the mobile station 302-1. Yes. The communication contents between the mobile station 302-1 and the portable radio 302-2B can be heard (monitored) by other mobile stations via the base station 301.

  Now, the in-vehicle wireless device 302-2A and the portable wireless device 302-2B of the mobile station 302-2 will be described with reference to FIG. FIG. 2 is a block diagram showing a schematic configuration of one embodiment of the present invention. In FIG. 2, the in-vehicle wireless device 302-2A and the portable wireless device 302-2B are shown as being integrally configured in the vehicle 205. The in-vehicle wireless device 302-2A is connected to the portable wireless device accommodating unit 201 by wireless communication such as infrared communication or communication via a transmission path 204 such as a cable. Portable wireless device 302-2B is accommodated in portable wireless device accommodating section 201. Reference numeral 202 denotes an in-vehicle radio aerial, and 203 denotes a portable radio aerial. 3 is separated from the in-vehicle wireless device 302-2A and the portable wireless device 302-2B, the portable wireless device 302-2B in FIG. 2 is removed from the portable wireless device accommodating portion 201 and taken out of the vehicle 205. It is a state. In FIG. 2, the in-vehicle wireless device 302-2A and the portable wireless device accommodation unit 201 are described in the embodiment connected by the transmission path 204, but the in-vehicle wireless device 302-2A and the portable wireless device accommodation unit 201 201 may be integrated. Therefore, an apparatus constituted by the in-vehicle wireless device 302-2A and the portable wireless device accommodating unit 201 will be referred to as an in-vehicle wireless device. In the following description, for convenience of explanation, the in-vehicle wireless device 302-2A and the portable wireless device housing unit 201 are described as devices connected by a transmission line 204 as shown in FIG.

  FIG. 1 is a block diagram showing a specific configuration when the in-vehicle wireless device 302-2A and the portable wireless device 302-2B shown in FIG. 2 are integrally configured. In addition, the same code | symbol is attached | subjected to the same thing as FIG. In FIG. 1, the in-vehicle wireless device 302-2A to which the in-vehicle wireless device antenna 202 is connected, the portable wireless device 302-2B to which the portable wireless device antenna 203 is connected, and the portable wireless device connected to the in-vehicle wireless device 302-2A. The wireless communication system including the machine accommodating unit 201 is operated as a wireless system that has received one wireless license. The portable wireless device accommodating unit 201 recognizes that the portable wireless device 302-2B is accommodated, the portable wireless device connection recognition unit 105, the portable wireless device CPU (or control unit) 103, and the in-vehicle wireless device CPU. An in-vehicle and portable communication control unit 104 for performing communication with (or control unit) 102 is mounted. Further, in a state where the portable wireless device 302-2B is accommodated in the portable wireless device accommodation unit 201, the in-vehicle, portable communication control unit 104, and portable wireless device provided in the portable wireless device 302-2B and the portable wireless device accommodation unit 201. The connection recognition unit 105 is connected to the connection recognition unit 105 via a predetermined connection unit (not shown).

  Further, the CPUs 102 and 103 are provided with memory units 106 and 107. The memory units 106 and 107 include, for example, ID No. 1 shown in FIG. Is registered. That is, in the memory unit 106 of the CPU 102 of the in-vehicle wireless device 302-2A, for example, the in-vehicle wireless device (302-2A): ID and the portable wireless device (302-2B): ID illustrated in FIG. 4 are registered. This is the telephone number, call name or ID No. given when this radio receives a radio license. Etc. (hereinafter these are collectively referred to as unique information). In FIG. 4, the part indicated by A1 is a telephone number, a calling name or an ID No. given when receiving a license. Etc. (for example, unique information indicated by 12345), and the portions indicated by a1 and a2 are information (a1: 11) for distinguishing between the in-vehicle wireless device 302-2A and the portable wireless device 302-2B shown in the present embodiment. ), (A2: 12) (these will be referred to as distinction information). In the present embodiment, only two units of the in-vehicle wireless device 302-2A and the portable wireless device 302-2B are shown, but the number is not limited to two, and a plurality of wireless devices can be provided. is there. That is, a plurality of wireless devices having one wireless license are configured to be distinguished from each other by the identification information. Then, the CPU (or control unit) 103 of the portable wireless device and the CPU (or control unit) 102 of the on-vehicle wireless device control the operations of the portable wireless device 302-2B and the on-vehicle wireless device 302-2A, respectively. Further, the in-vehicle and portable communication control unit 104 and the portable wireless device connection recognition unit 105 can be provided on the in-vehicle wireless device 302-2A side.

  Next, the operation of the portable wireless device connection recognition unit 105 will be described in detail. First, when the portable wireless device 302-2B is placed in the portable wireless device accommodating section 201, it is necessary to authenticate whether the wireless devices are the same. That is, the in-vehicle wireless device 302-2A and the portable wireless device 302-2B are paired, and the same wireless license is given as an integral unit. Similarly, it is assumed that the same license is also given to a plurality of other mobile stations 302. In the following description, the in-vehicle wireless device 302-2A and the portable wireless device 302-2B will be described for convenience of description.

  When radio waves are emitted from the in-vehicle radio 302-2A and the portable radio 302-2B, radio waves can be emitted from either one, but at the same time, radio waves are simultaneously emitted from the in-vehicle radio 302-2A and the portable radio 302-2B. Forbidden. Therefore, the portable wireless device connection recognition unit 105 determines whether, for example, the IDs of the above-described in-vehicle wireless device 302-2A and the portable wireless device 302-2B are the same or not identical (mismatch), and the CPU 102 based on the determination. And 103 control the operations of the respective in-vehicle wireless device 302-2A and portable wireless device 302-2B. That is, since there are a plurality of portable wireless devices, it is necessary to determine whether the wireless devices have the same wireless license, and it is also necessary to operate the wireless devices with different wireless licenses according to the rules. The radio ID No. The ID No. shown in FIG. The identification information (indicated by a1 and a2) is not determined. Table 1 shows the contents of the control.

表１において、認証項目のＩＤ同一とは、車載無線機３０２−２Ａと携帯無線機３０２−２Ｂとは、同一の免許（図４で示すＩＤＮｏ．１２３４５で示す。）を与えられた無線機を意味し、ＩＤ不一致とは、車載無線機３０２−２Ａと携帯無線機３０２−２Ｂとが異なったＩＤＮｏ．を持つ無線機を意味する。

In Table 1, the same authentication item ID means that the in-vehicle wireless device 302-2A and the portable wireless device 302-2B are wireless devices that have been given the same license (indicated by ID No. 12345 shown in FIG. 4). This means that the ID mismatch indicates that the in-vehicle wireless device 302-2A and the portable wireless device 302-2B have different ID numbers. Means a radio with

  FIG. 5 is a flowchart for explaining the operation of this embodiment. First, in step 501, the portable radio 302-2B is placed in the portable radio accommodation unit 201. In step 502, the portable wireless device connection recognition unit 105 mutually authenticates whether the in-vehicle wireless device 302-2A and the portable wireless device 302-2B have the same wireless number, that is, whether the IDs are the same. The authentication method is the ID No. registered in the memory 106 of the CPU 102. ID No. registered in the memory 107 of the CPU 103. Are compared and authenticated. As a result of authentication, if the IDs match, the process proceeds to step 504, and if the IDs do not match, the process proceeds to step 503.

  In step 503, the CPU of the in-vehicle wireless device and the portable wireless device that have received the result of the ID mismatch prohibit the emission of radio waves from the in-vehicle wireless device and the portable wireless device, operate only reception, and receive from other wireless devices. Only the signal, that is, the signal indicated by f in FIG. 3 is received. On the other hand, emission of radio waves from the in-vehicle wireless device and the portable wireless device is permitted under predetermined conditions. This will be described later.

  In step 504, the CPU 102 of the in-vehicle wireless device 302-2A permits the emission of radio waves from the in-vehicle wireless device 302-2A, and the CPU 103 of the portable wireless device 302-2B prohibits the emission of radio waves from the portable wireless device 302-2B. To do.

  Next, the case where the portable wireless device 302-2B is removed from the portable wireless device accommodating unit 201 in step 505, that is, the case where the portable wireless device 302-2B is taken out of the vehicle will be described.

  In step 506, when the portable wireless device 302-2B is removed from the portable wireless device housing unit 201, the CPU 102 of the in-vehicle wireless device 302-2A prohibits the emission of radio waves from the in-vehicle wireless device 302-2A and operates only reception. . On the other hand, the CPU 103 of the portable wireless device 302-2B permits the emission of radio waves from the portable wireless device 302-2B. Subsequent step 507 is the same as step 501, and this operation is repeated thereafter. Step 508 indicates the end of wireless communication.

  In the above configuration, the control of the emission of radio waves from the radio based on the authentication of the portable radio connection recognition unit 105 has been described for a plurality of radios given one radio license.

  Thus, in step 503, it has been described that when the in-vehicle wireless device 302-2A and the portable wireless device 302-2B do not match the ID, emission of radio waves from the portable wireless device 302-2B is permitted under predetermined conditions. This will be described. As described above, in the embodiment of the present invention, it is necessary to effectively use a plurality of wireless devices having different IDs when a plurality of wireless devices are given the same wireless license. However, when the paired in-vehicle wireless device and portable wireless device are separated, the communication state of the other party cannot be known from each other. In addition, a plurality of radio devices having the same radio license can emit radio waves at the same time. Therefore, the person who owns the radio device needs to obtain information that can be used to determine whether or not his / her radio device can be used. ID No. 1 shown in FIG. Is for distinguishing a plurality of wireless devices, and as described above, ID No. A1 is a wireless license ID, and a1 and a2 are IDs for distinguishing a plurality of wireless devices having the same license. The plurality of wireless devices are CPCs of the wireless devices, for example, the CPUs 102 and 103 operate each wireless device so that the reception signal from the base station 301 can always be received. In the case of a signal indicating whether the transmission is made, for example, in the case of the portable wireless device 302-2B, the transmission information of the unique information A1 (12345) and the discrimination information a2 (12) is received and displayed on the display device.

  Accordingly, when one wireless device, for example, the portable wireless device 302-2B transmits radio waves, the display unit (not shown) of the other wireless device, for example, the in-vehicle wireless device 302-2A has a portable wireless device. 302-2B ID number, i.e., IDNo. 12345-12 is displayed. At the same time, since the voice can also be heard by the portable radio 302-2B, the user knows who (which radio) is emitting radio waves. Alternatively, which wireless device is in use can be displayed on the display unit of the wireless device. Therefore, a plurality of radio devices having the same license do not emit radio waves simultaneously by two or more units.

  In other words, in the case of the ID mismatch shown in Table 1, when one wireless device emits radio waves in a plurality of wireless devices having the same wireless license, from which wireless device the radio waves are transmitted to the other wireless devices. Because it is possible to know whether or not the radio has been launched, radio waves are not emitted from other radios. In addition, in order to automatically prohibit the emission of radio waves to radios other than the radio that is emitting radio waves, the ID No. ID Nos. Of wireless devices other than 12345-12. If the CPU of the radio device having the function of the radio device is programmed in the CPU of each radio device so as to prohibit the emission of radio waves and operate only for reception, it can be easily implemented.

  Although the present invention has been described in detail above, the present invention is not limited to the embodiments of the wireless communication system described herein, and can be widely applied to wireless communication systems other than those described above. Needless to say.

It is a block diagram which shows the specific structure of one Example of this invention. It is a block diagram which shows one Example of this invention. It is a figure which shows schematic structure of the radio | wireless communications system of this invention. It is a figure which shows one Example of individual ID of this invention. It is a flowchart for demonstrating operation | movement of this invention. It is a figure which shows an example in the vehicle of the conventional radio | wireless communications system. It is a figure which shows an example outside the vehicle of the conventional radio | wireless communications system. It is a figure which shows another example in the vehicle of the conventional radio | wireless communications system.

Explanation of symbols

  102, 103: CPU, 104: vehicle-mounted, portable communication control circuit, 105: portable wireless device connection recognition circuit, 106, 107: memory unit, 201: portable wireless device housing unit, 202, 603, 803: antenna for vehicle-mounted wireless device , 203, 604, 804: antenna for portable radio, 204: transmission path, 205: vehicle, 301: base station, 302: mobile station, 302-2A, 801: in-vehicle radio, 302-2B, 602, 802: Portable radio, 303: communication area, 601: in-vehicle adapter.

Claims (3)

  The vehicle-mounted wireless device includes at least one vehicle-mounted wireless device and at least one portable wireless device. The vehicle-mounted wireless device includes a vehicle-mounted wireless device, a portable wireless device housing portion on which the portable wireless device is detachably mounted, and vehicle-mounted and portable communication A control unit, a portable wireless device connection recognition unit, and a control unit for controlling the in-vehicle wireless device, and the portable wireless device has a control unit for controlling the portable wireless device; the in-vehicle wireless device and the portable wireless device; Each has a memory unit in the control unit, and the memory unit stores unique information related to a radio license, and when the portable radio is mounted in the portable radio unit accommodating unit, the respective control unit Determines whether or not the unique information stored in the memory unit matches, and if the mismatch of the unique information is recognized, the control unit of the in-vehicle wireless device and the control unit of the portable wireless device Nothing Machine and a wireless communication system, characterized by controlling so as to receive operating the vehicle radio and the portable wireless device along with prohibiting firing of radio waves of the mobile wireless device. And at least one vehicle wireless device and at least one mobile station ing from portable radios, the vehicle wireless device, a vehicle radio, portable radio housing portion for detachably mounting the portable radio device And a control unit that controls the in-vehicle, portable communication control unit, portable radio connection recognition unit, and in-vehicle radio, and the portable radio has a control unit that controls the portable radio. And the portable wireless device each have a memory unit in the control unit, the memory unit stores unique information about a wireless license, and the portable wireless device is mounted in the portable wireless device housing unit Each of the control units determines whether or not the unique information stored in the memory unit matches, and when recognizing the mismatch of the unique information, the control unit of the in-vehicle wireless device and the portable wireless device Control unit , Mobile station and controls so as to receive operating the vehicle radio and the portable wireless device along with prohibiting firing of a radio wave-vehicle radio and the portable wireless device. The vehicle-mounted wireless device includes at least one vehicle-mounted wireless device and at least one portable wireless device, and the vehicle-mounted wireless device controls the vehicle-mounted wireless device and a portable wireless device housing portion in which the portable wireless device is detachably mounted. The portable wireless device has a control unit for controlling the portable wireless device, and when the portable wireless device is mounted in the portable wireless device housing portion, the in-vehicle wireless device and the portable wireless device The wireless device identifies unique information related to a wireless license, and if the unique information does not match, each control unit of the in-vehicle wireless device and the portable wireless device prohibits the emission of the in-vehicle wireless device and the portable wireless device And
A wireless communication method, wherein the vehicle-mounted wireless device and the portable wireless device are controlled to perform a receiving operation.

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