JP4860425B2 - Wireless communication system - Google Patents

Description

The present invention relates to a radio communication system having a control station, a base station, and a mobile station, and more particularly to a data transmission system between a base station and a mobile station.

In general, a wireless device installed in a base station and a mobile station (for example, a train) in a wireless communication system transmits data such as operation information during operation, and is connected to the base station based on this data. The monitoring station is monitoring the mobile station.

A conventional wireless communication system is a wireless system as shown in FIG.
In this figure, a train radio system is taken as an example, and is composed of a control station 8-1, a plurality of base stations 8-21 to 2n, and a train 8-3 (mobile station) that moves on the track.
The control station 11 and each base station 8-21 to 2n are connected by a wired line, and each base station 8-21 to 2n and the train are connected by a wireless line.
The control station 8-1 communicates with the train via the base stations 8-21 to 2n. That is, each base station performs wireless communication with the train in accordance with an instruction from the control station 8-1. In such a wireless communication system, the control station 8-1 can monitor the operation state and the like by constantly transmitting and receiving operation information data to and from the train.

Next, with reference to FIGS. 9-10, the structure of the radio | wireless apparatus installed in the base station and the train is demonstrated.
FIG. 9 is a diagram showing the configuration of the base stations 8-21 to 2n. The base stations 8-21 to 2n are an antenna 9-1 for transmitting / receiving radio waves to / from a radio apparatus installed in the train, and a transmitter for transmitting radio waves of frequency f1 from the antenna 9-1 to the train side. 9-21, 9-22, switching unit 9-4 for switching transmission, receiver 9-3 for receiving radio wave of frequency f2 transmitted from the train side, and controlling data such as operation information The data controller 9-5 is provided. In FIG. 9, two transmitters are provided so that even if one transmitter fails, the base station can be operated with another transmitter.

  FIG. 10 is a diagram illustrating a configuration of the wireless device 8-3 installed in each vehicle in the train. As shown in FIG. 10, each train vehicle is provided with one wireless device 8-3 before and after the vehicle, and is connected to each other by wire or the like. The wireless device 8-3 constantly monitors whether or not a failure or the like has occurred. The configuration of the radio device 8-3 includes an antenna 10-1 that transmits and receives radio waves from the base stations 8-21 to 2n, a transmitter 10-2 that transmits radio waves of the frequency f2 from the antenna to the base station side, Receiver 10-3 that receives radio waves of frequency f1 transmitted from base stations 8-21 to 2n, switching unit 10-4 that switches between transmission and reception, and control unit 10-5 that controls radio apparatus 8-3 It consists of and.

Next, a sequence of a conventional train radio communication system will be described with reference to the drawings.
FIG. 11 is a diagram showing a sequence of a conventional train radio system. The explanation of the sequence diagram is a case where there are two train vehicles.
First, when the control station 8-1 issues an operation status request to the base stations 8-21 to 2n, the base stations 8-21 to 2n transmit a polling signal at a frequency f1 to the first radio device of the train. When the first vehicle wireless device 8-3 receives the polling signal having the frequency f1, the first vehicle wireless device 8-3 transmits a polling response signal having the frequency f2. When the base stations 8-21 to 2n receive the polling response signal with the frequency f2 from the first radio apparatus 8-3 of the train, the base stations 8-21 to 2n transmit the polling signal with the frequency f1 to the second radio apparatus 8-3 of the train. When the wireless device 8-3 of the second vehicle receives the polling signal, a polling response signal of frequency f2 is transmitted from the wireless device 8-3 of the second vehicle. When the base stations 8-21 to 2n receive the polling response signal having the frequency f2 from the wireless device 8-3 of the second vehicle, the base stations 8-21 to 2n collectively control the operation information data included in the polling response signals of the first vehicle and the second vehicle. Transmit to station 8-1.
In FIG. 11, the case where the number of train vehicles is two has been described. However, when the number of train vehicles is n, processing is performed n times in the same sequence.

  As described in FIGS. 8 to 11 above, in the conventional train radio system, the frequency of transmission from the base station is f1, and the frequency of transmission from the radio apparatus installed in the train is f2. Data was constantly transmitted and received between wireless devices, and the results were managed on the control station side to monitor train operation.

As a conventional radio communication system for trains, for example, there is Patent Literature 1.

JP-A-2005-236877

However, in the train radio communication system as described above, f1 is used when transmitting from the base station to the radio apparatus in the train, and f2 is used when transmitting from the radio apparatus within the train to the base station. Because communication is being performed, when a radio or the like performing communication in the same frequency band (f1, f2) as the frequency used in the train wireless communication system while the train is traveling on the track is present near the track However, there is a problem that communication between the base station and the wireless device installed in the train is disturbed by radio waves of the wireless device, and it becomes impossible to transmit and receive operation information data.
In addition, there is a problem similar to the above even when communication with the base station becomes impossible while the train is traveling in the shadow of a building even if it is not obstructed by other radio equipment.
For this reason, in the train radio communication system, if the above problems occur, the control station cannot manage the train, so the fail-safe function installed in the train operates and the train runs normally. Even if it was, an emergency stop was taken and the train operation was hindered.

The present invention has been made in view of such a conventional situation, and even if one of the frequencies f1 and f2 is obstructed and cannot communicate, the control station can monitor the operation status of the mobile station. The purpose of this is to prevent the fail-safe function for inadvertently stopping the train from operating.

And the control station, a base station, a radio communication system including a wireless device installed in the mobile station, the base station first transmitting data of operation information in the first frequency to the wireless device A second transmission unit for transmitting at a second frequency, a first reception unit for receiving operation information data of a mobile station transmitted at the first frequency from the wireless device, and a second receiving unit for receiving data operation information of the mobile station that has been transmitted at a second frequency, the mobile station comprises a first wireless device and the second wireless device, wherein the mobile station the first wireless device sends a receiver for receiving data transmitted in said first frequency from the first transmitter of the base station, the data before Symbol operation information of the mobile station at the first frequency and a transmitter for the said mobile station second wireless device, the base station Characterized by comprising: a receiver from two transmitters for receiving the data transmitted by the second frequency, and a transmitter for transmitting data of the operation information of the mobile station in the previous SL second frequency With the configuration, even if one frequency is obstructed and communication cannot be performed, communication can be performed using the other frequency.

Further, a control station, a base station, a radio communication system including a wireless device installed in the mobile station, the base station transmits at a first frequency data of operation information to the wireless device A first transmission unit, a second transmission unit that transmits at a second frequency, and a first reception unit that receives operation information data of a mobile station transmitted from the wireless device at the first frequency; A second receiving unit that receives data of operation information of the mobile station transmitted at the second frequency, and the wireless device receives data transmitted at the first frequency from the base station And a first receiver for detecting whether or not the first frequency is disturbed, and receiving data transmitted at a second frequency from the base station and detecting whether or not the second frequency is disturbed. A second receiver and a first frequency or second A transmitter that transmits mobile station operation information data to the base station at any one of the frequencies, and transmission of the transmitter when the receiver detects that the first frequency is disturbed And a control unit for setting the transmission frequency of the transmitter to the second frequency when it is detected that the second frequency is disturbed. By adopting the characteristic configuration, even if one frequency is obstructed and communication cannot be performed, communication can be performed using the other frequency .

According to the present invention, in the first embodiment, either the front or rear wireless device installed in each vehicle can communicate with the base station using the frequency f1 or f2. Therefore, for example, even if the signal of the frequency f1 is disturbed, communication can be performed at the frequency f2. For this reason, wireless devices installed at the front and rear of each vehicle can communicate with the other wireless device even if one of the wireless devices is obstructed. The problem that it is impossible to solve the problem is solved, the fail-safe function is inadvertently operated, and there is an effect that the train is not stopped urgently.
Also, since the polling signals transmitted from the base station at the frequencies f1 and f2 are the same data polling signals, even if the wireless device in front of the vehicle is obstructed and communication with the base station becomes impossible, Communication is possible with the wireless device, and the wireless device in the back is connected to the base station device in the front by wire, so the operation information data of the control station included in the polling signal transmitted from the base station is shared There is an effect that can be done.
According to the present invention, in the second embodiment, it is always monitored whether there is a frequency at which a radio apparatus installed in a train is disturbed. Since the polling response signal is transmitted with the frequency set to an undisturbed frequency, communication with the base station can be performed even if the communication with the base station is interrupted. For this reason, the problem of being unable to communicate between the base station and the train due to interference is solved, the fail-safe function is inadvertently operated, and the train is not stopped urgently.

Example 1
Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 shows a configuration example of a train radio communication system according to an embodiment of the present invention.
The train radio communication system of FIG. 1 is composed of a control station 1-1, a plurality of base stations 1-21 to 2n, and a train 1-3 (mobile station) that moves along a track.
The control station 1-1 and the base stations 1-21 to 2n are connected by wired lines, and the base stations 1-21 to 2n and the train 1-3 are connected by wireless lines.
The control station 1-1 communicates with the train 1-3 through the base stations 1-21 to 2n. That is, each of the base stations 1-21 to 2n performs wireless communication with the train 1-3 according to an instruction from the control station 1-1. In such a wireless communication system, the control station 1-1 can monitor the operation state and the like by constantly transmitting and receiving operation information with the train 1-3.

Next, the configuration of the radio apparatus installed in the base station and the train will be described with reference to FIGS.
FIG. 2 shows base stations 1-21 to 2 in the train radio communication system according to the embodiment of the present invention.
It is a figure which shows the structure of n.
The base stations 11-21 to 2n transmit the radio wave having the frequency f1 from the antenna 2-1 to the train side from the antenna 2-1 and the antenna 2-1 for transmitting and receiving the radio wave to the radio apparatus 1-3 installed in the train. Transmitter 2-21, transmitter 2-22 for transmitting radio waves of frequency f2, switching unit 2-41 for switching between transmission frequencies f1 and f2, and radio waves of frequency f1 transmitted from the train side Receiver 2-31, receiver 2-32 for receiving radio waves of frequency f2, switching unit 2-42 for switching between reception frequencies f1 and f2, duplexer 2-5, and data such as operation information Is provided with a data control unit 2-6.

FIG. 3 is a diagram showing a configuration of a radio apparatus 1-3 installed in a train in the train radio system according to the embodiment of the present invention. As shown in FIG. 3, each vehicle of the train 1-3 is provided with one wireless device 1-3 before and after each vehicle, and is connected to each other by wire or the like. Wireless devices constantly monitor each other for failures or the like.
The configuration of the wireless device 1-3 includes an antenna 3 for transmitting and receiving radio waves from the base stations 1-21 to 2n.
1, a transmitter 3-2 for transmitting radio waves from the antenna 3-1 to the base station side, a receiver 3-3 for receiving radio waves transmitted from the base stations 1-21 to 2 n, and transmission and reception A switching unit 3-4 for switching between and a control unit 3-5 for controlling the wireless device.
As described above, the wireless device of the first embodiment is provided one before and after one vehicle, and the transmission / reception frequency of the wireless device 1-3 provided at the front of the vehicle is f1, the rear of the vehicle. Communication is performed at a transmission / reception frequency f2 of the wireless device 1-3 provided.

Next, the sequence of the train radio communication system of the present embodiment will be described with reference to the drawings. FIG. 4 is a diagram showing a sequence of the train radio communication system. The sequence diagram will be described in the case where there are two train vehicles.
First, when the control station 1-1 issues an operation status request to the base stations 1-21 to 2n, the base stations 1-21 to 2n transmit the frequency to the radio device 1-3 installed in front of the first vehicle of the train. A polling signal is transmitted at f1. When the wireless device 1-3 installed in front of the first vehicle receives the polling signal having the frequency f1, the wireless device 1-3 installed in front of the first vehicle transmits a polling response signal having the frequency f1. When the base stations 1-21 to 2n receive the polling response signal having the frequency f1 from the radio device 1-3 installed in front of the first vehicle of the train, the base stations 1-21 to 2n transmit the frequency f2 to the radio device 1-3 behind the first vehicle. A polling signal of the same data as the data transmitted to the wireless device 1-3 ahead of the first vehicle is transmitted. When the wireless device 1-3 behind the first vehicle receives the polling signal, the wireless device 1-3 behind the first vehicle transmits a polling response signal of frequency f2. When the base station 1-21 to 2n finishes polling the wireless device 1-3 installed in front of and behind the first vehicle, the base station 1-21n transmits a polling signal in the same sequence as the first vehicle. Perform the process.
When the base stations 1-21 to 2n receive the polling response of the frequency f2 from the wireless device 1-3 of the second vehicle, the base stations 1-21 to 2n collectively control the train operation information data included in the polling response signals of the first vehicle and the second vehicle. Transmit to station 1-1.
In FIG. 4, the case where the number of train vehicles is two has been described. However, when the number of train vehicles is n, processing is performed n times in the same sequence.

Next, data included in the polling signal and the polling response signal will be described with reference to FIG.
FIG. 5A shows the configuration of the polling signal transmitted from the base stations 1-21 to 2n, and FIG. 5B shows the configuration of the polling response signal transmitted from the wireless device 1-3 installed in the train. FIG.
As shown to Fig.5 (a), the polling signal transmitted from the base station 1-21-2n is comprised from control station operation information data, emergency data, and other data. Control station operation information data is the operation number of each train managed on the control station side based on the timetable, the track information on which the operation number is running, operation time information, and installed in the train Data such as ID information of the wireless device.
The emergency data is data for entering emergency stop information for a train traveling on a track when an accident occurs on the track. When there is no need, it is set as predetermined fixed data. The other data is data for providing redundancy to the data. In particular, other data need not be entered as data unless necessary.

  As described with reference to FIG. 5 (a), the polling signals transmitted from the base stations 1-21 to 2n to the radio apparatus 1-3 installed in the train are the control station operation information data, emergency data, and other data. Consists of data. This data is transmitted as a polling signal to the wireless device 1-3 installed in the train together with error detection data such as CRC (Cyclic Redundancy Check), and the wireless device 1-3 performs this polling. When the signal is received, it is determined from the ID information of the wireless device 1-3 whether the polling signal has been transmitted to the own wireless device 1-3, and the polling signal transmitted to the own wireless device 1-3. If it is determined that the error is detected, CRC error detection is performed, and based on this result, it is determined whether the data transmitted from the base stations 1-21 to 2n can be normally received. If not received normally, it is determined that there is an abnormality in communication with the base stations 1-21 to 2n, the fail-safe function is activated, and measures such as an emergency stop of the train are taken. The determination of abnormality can be determined as abnormal when it is determined that there is an abnormality in communication once or a predetermined number of times (multiple times).

Next, FIG.5 (b) is the figure which showed the structure of the polling response signal transmitted to the base station 1-21-2n from the radio | wireless apparatus 1-3 installed in the train.
As shown in FIG.5 (b), the polling signal transmitted from the radio | wireless apparatus 1-3 is comprised from train operation information data, emergency data, and other data. Train operation information data refers to the position information, time information, ID information of the wireless device 1-3, and the operating state (normal, abnormal, failure) of the own wireless device 1-3 installed in the vehicle. Etc.) and data on the operating state of the other wireless device 1-3 installed in the vehicle.
Emergency data controls the emergency stop of a train when the train has an accident such as a derailment or when the train driver releases the train handle for a certain period of time (Detman). This is data for informing the station 1-1. The other data is data for providing redundancy to the data. In particular, other data need not be entered as data unless necessary.

As described with reference to FIG. 5B, the polling response signals transmitted from the radio apparatus 1-3 installed in the train to the base stations 1-21 to 2n are train operation information data, emergency data, and other data. Consists of data. This data is transmitted to the base stations 1-21 to 2n as a polling response signal together with error detection data such as CRC (Cyclic Redundancy Check), and the base stations 1-21 to 2n send this polling signal. When received, it determines from the ID information of the wireless device 1-3 whether or not it is a polling response signal from the ID information of the wireless device 1-3 that transmitted the polling signal, and is transmitted to the base stations 1-21 to 2n. If it is determined that the received polling response signal is received, CRC error detection is performed, and based on this result, it is determined whether the data transmitted from the wireless device 1-3 is normally received. If it cannot be normally received, it is determined that there is an abnormality in communication with the wireless device, and an emergency stop of the train on which the wireless device 1-3 is installed is performed. The determination of abnormality can be determined as abnormal when it is determined that there is an abnormality in communication once or a predetermined number of times (multiple times).
Further, when emergency data is transmitted from the wireless device 1-3, the control station side makes an emergency stop on a train traveling on the same track as the train on which the wireless device 1-3 is installed. A polling signal is transmitted so that

As described above, in the first embodiment, with such a configuration, either the front or rear wireless device 1-3 installed in each vehicle uses the frequency f1 or f2. Since the communication with the base stations 1-21 to 2n can be performed, for example, even if the signal with the frequency f1 is disturbed, the communication with the frequency f2 can be performed. For this reason, since the wireless device 1-3 installed in the front and rear of each vehicle can communicate with the other wireless device 1-3 even if one of the wireless devices 1-3 is disturbed, the wireless device 1-3 receives the interference. Thus, the problem that communication between the base stations 1-21 to 2n and the train cannot be solved is solved, the fail-safe function is inadvertently operated, and the train is not stopped urgently.
In addition, since the polling signals transmitted from the base stations 1-21 to 2n at the frequencies f1 and f2 are polling signals having the same data, the wireless device 1-3 in front of the vehicle is obstructed and communication with the base station is prevented. Even if it becomes impossible, communication can be performed by the rear wireless device 1-3, and the rear wireless device 1-3 is connected to the front base station device 1-3 by wire. The operation information data of the control station 1-1 included in the polling signals transmitted from -21 to 2n can be shared.

(Example 2)
A second embodiment of the present invention will be described with reference to the drawings.
The configuration of the train radio communication system of the second embodiment, the configurations of the base stations 1-21 to 2n, and the configurations of the polling signal and the polling response signal are the same as those in FIGS. 1, 2, and 5 of the first embodiment. Therefore, explanation is omitted.
A configuration of a wireless device 1-3 installed in a train, which is a characteristic part of the second embodiment, will be described with reference to FIG.
6 includes an antenna 6-1 that receives radio waves transmitted from the base stations 1-21 to 2n, a switching unit 6-4 that switches between transmission and reception, and a frequency f1 or frequency. a transmission unit 6-2 that performs transmission at any one of f2, a distributor 6-6 that distributes a signal received by the antenna, and a reception unit 6-31 that performs reception processing of the signal distributed by the distributor 6-6 6-32 and a control unit 6-5 that controls each unit of the wireless device 1-3.

The wireless device 1-3 shown in FIG. 6 is installed in the front and rear of each vehicle of the train as in the first embodiment, and the wireless devices 1-3 of each vehicle are connected to each other by wires or the like. Yes. Wireless device 1
-3 constantly monitors whether or not a failure or the like has occurred.
In the second embodiment, as shown in FIG. 6, the received signal is distributed by the distributor 6-6, and the receiving unit 6-31 having the frequency f1 and the receiving unit 6-32 having the frequency f2 have either frequency f1 or f2. Is constantly monitoring for any interference. If the radio apparatus 1-3 determines that the frequency f1 is obstructed, the radio apparatus 1-3 determines that it cannot communicate with the base stations 1-21 to 2n at the frequency f1, and the base station 1- When the polling response signal is transmitted to 21 to 2n, the control unit 6-5 controls to select and transmit the frequency f2 that is not disturbed.
Here, as a method for determining that one of the frequencies f1 and f2 is disturbed, when the control station operation information data cannot be received from the base stations 1-21 to 2n, the disturbing wave is received. The transmission frequency of the transmission unit 6-2 is set to a frequency that is not disturbed.

Next, a sequence of the train radio communication system according to the second embodiment will be described with reference to the drawings. FIG. 7 is a diagram showing a sequence of the train radio communication system. The sequence diagram will be described in the case where there are two train vehicles.
In the second embodiment, when the operation status request signal is transmitted from the control station 1-1 to the base stations 1-21 to 2n, the base stations 1-21 to 2n install polling signals of frequencies f1 and f2 on the first vehicle. Are sequentially transmitted to the wireless devices 1-3. The data included in the polling signals f1 and f2 are the same.
Next, the radio apparatus 1-3 installed in the train determines whether any of the polling signals f1 and f2 is obstructed. When it is determined that neither the polling signals f1 and f2 transmitted from the base stations 1-21 to 2n are obstructed, the wireless device 1-3 sends the polling response signal having the frequency f1 to the base stations 1-21 to 2n. Send. If the wireless device 1-3 determines that the polling signal f1 transmitted from the base stations 1-21 to 2n is obstructed, the wireless device 1-3 transmits the uninterrupted frequency f2 to the transmitter 6-2 of the wireless device 1-3. A transmission frequency is set in the base station 1-21, and a polling response signal is transmitted to the base stations 1-21 to 2n.
Next, when a polling response signal is received from the wireless device 1-3 of the first vehicle, polling signals f1 and f2 are transmitted to the wireless device 1-3 of the second vehicle. Similarly to the transmission device 1-3 of the first vehicle, the wireless device 1-3 of the second vehicle determines whether any of the polling signals f1 and f2 transmitted from the base station 1-3 is disturbed. The polling response signal is transmitted at the frequency set to the base stations 1-21 to 2n. The base stations 1-21 to 2n collectively transmit the train operation information data included in the polling response signals for the first vehicle and the second vehicle to the control station 1-1.
In FIG. 7, the case where the number of train vehicles is two has been described. However, when the number of train vehicles is n, processing is performed n times in the same sequence.

As described above, in the second embodiment, the wireless device 1-3 installed in the train is always monitored for a frequency that is disturbed. If there is a disturbed frequency, the wireless device 1-3 is monitored. Since the polling response signal is transmitted by setting the transmission frequency of the transmitter to an unhindered frequency, even if communication with the base stations 1-21 to 2n is hindered, communication can be performed at the unhindered frequency. . For this reason, the problem that communication between the base stations 1-21 to 2n and the train cannot be performed due to interference is solved, the fail-safe function is inadvertently operated, and the train is not stopped urgently.
In addition, when there is a disturbed frequency between the front and rear wireless devices 1-3 installed for each vehicle, the frequencies disturbed between the wireless devices 1-3 are notified to each other. Alternatively, the transmission frequency of the wireless device 1-3 can be set to a frequency that is not disturbed. When the radio apparatus 1-3 determines that one of the frequencies f1 and f2 is disturbed, the information on the disturbed frequency may be transmitted to the base station side. . By adopting such a configuration, the control station can also know the frequency that is being disturbed, and even when transmitting from the base station, it can also be controlled not to transmit at the frequency that is disturbed. .
Further, when there is no frequency interference, the base station may be notified that the interference is not occurring, and the normal communication may be resumed.

Here, the configurations of the radio communication system, the control station, the base station, and the mobile station according to the present invention are not necessarily limited to those described above, and various configurations may be used.
The present invention can also be provided as, for example, a method or method for executing the processing according to the present invention, a program for realizing such a method or method, or a recording medium for recording the program. It is also possible to provide various devices and systems. The application field of the present invention is not necessarily limited to the above-described fields, and the present invention can be applied to various fields.

As various processes performed in the radio communication system, the control station, the base station, and the mobile station according to the present invention, the processor is stored in a ROM (Read Only Memory) in a hardware resource including a processor, a memory, and the like. A configuration controlled by executing the control program may be used, and for example, each functional unit for executing the processing may be configured as an independent hardware circuit. Further, the present invention can be grasped as a computer-readable recording medium such as a floppy (registered trademark) disk or a CD (Compact Disc) -ROM storing the control program, or the program (itself). The processing according to the present invention can be performed by inputting the program from the recording medium to the computer and causing the processor to execute the program.

The block diagram of the train radio | wireless communications system which concerns on the form of Embodiment 1, 2 of this invention is shown. The block diagram of the base station which concerns on Embodiment 1, 2 of this invention is shown. The block diagram of the radio | wireless apparatus installed in the train which concerns on Embodiment 1 of this invention is shown. FIG. 2 shows a sequence diagram of a base station and a radio apparatus according to the first embodiment of the present invention. 1 shows an example of the structure of a polling signal and a polling response signal according to Embodiments 1 and 2 of the present invention, (a) shows the configuration of a polling signal transmitted from a base station, and (b) shows a polling response transmitted from a wireless device The structure of a signal is shown. The block diagram of the radio | wireless apparatus installed in the train which concerns on Embodiment 2 of this invention is shown. The sequence diagram of the base station and radio | wireless apparatus which concern on Embodiment 2 of this invention is shown. The block diagram of the conventional train radio | wireless communications system is shown. The block diagram of the conventional base station is shown. The block diagram of the radio | wireless apparatus installed in the conventional train is shown. The sequence diagram of the conventional base station and radio | wireless apparatus is shown.

Explanation of symbols

1-1: Control Bureau,
1-21 to 2n: base station,
1-3: A wireless device installed in the train,
2-1: Base station antenna 2-21: Base station transmitter (f1)
2-22: Base station transmitter (f2)
2-31: Base station receiver (f1)
2-32: Base station receiver (f2)
2-41, 2-42: Base station switching unit 2-5: Base station duplexer 2-6: Base station data control unit 3-1: Radio device antenna 3-2: Radio device transmitter 3 -3: Radio device receiver 3-4: Radio device switching unit 3-5: Radio device control unit

Claims (2)

A wireless communication system including a control station, a base station, and a wireless device installed in a mobile station,
The base station includes a first transmission unit that transmits operation information data to the wireless device at a first frequency, a second transmission unit that transmits at a second frequency, and a first frequency from the wireless device. A first receiving unit that receives data on the operation information of the mobile station that has been transmitted in (2), and a second receiving unit that receives data on the operation information of the mobile station that has been transmitted on the second frequency,
The mobile station includes a first wireless device and a second wireless device connected to each other,
The first wireless device and the second wireless device are:
A first receiver for receiving data transmitted at a first frequency from the base station and detecting whether the first frequency is disturbed ;
A second receiver for receiving data transmitted at a second frequency from the base station and detecting whether the second frequency is disturbed ;
A transmitter for transmitting operation information data of a mobile station to the base station at either the first frequency or the second frequency ;
When the first frequency is detected as being disturbing in the first receiver, to set the frequency of transmission of the transmitter to a second frequency, the second frequency in said second receiver There when it is detected as being disturbing, and a control unit that sets a frequency of transmission of the transmitter to a second frequency Rutotomoni,
When the first wireless device and the second wireless device detect a disturbed frequency, they notify each other of the disturbed frequency and set the frequency of the transmitter to an undisturbed frequency. A wireless communication system. When the first radio apparatus and the second radio apparatus determine that the first frequency or the second frequency is disturbed, the base station transmits information on the disturbed frequency. 2. The wireless communication system according to claim 1, wherein the control station controls the base station not to transmit at the disturbed frequency.