JP2007013367A - Measuring system and measuring device and radio station - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that since it is not possible for a central unit to judge that a traveling object (for example, a train) on which a measuring device is loaded has crosses a zone when the train crosses the zone without releasing a measuring mode, it is not possible to release the measuring mode. <P>SOLUTION: Central units 1a and 1b transmit "outgoing radio waves 6a and 6b" for transmitting notification information showing the use status of a measuring object line as the object of measurement by a measuring device 4 from base stations 2a and 2b. When the measuring device 4 installed in a train 5 moves from a zone A to a zone B, the outgoing radio waves 6a and 6b to be transmitted from the central units 1a and 1b through transmission paths 8a and 8b by the base stations 2a and 2b are received by a mobile station 3 for measurement. A measuring side notification information receiving part 41 of the measuring device 4 receives "notification information" transmitted through the mobile station 3 for measurement by the outgoing radio waves 6a and 6b through a transmission path 9. When the notification of "empty" is received by the measuring side notification information receiving part 41, the measurement is started by a measuring side quality measuring part 42. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  This invention is a wireless system having a plurality of zones composed of a plurality of base stations wired with a central device, and moves between a plurality of zones and communicates with a base station by a radio system, The present invention relates to a measurement system that measures the wireless channel quality of a wireless system that uses a measurement mobile station and a wired measurement apparatus.

  In a conventional inspection system, when a moving body (for example, a train) equipped with an inspection device crosses between zones, the inspection of the inspection mode is manually notified to the central device before crossing the zone. The inspection was interrupted, and after crossing the zone, the inspection was resumed by manually informing the central unit of the start of the inspection mode.

As described above, the central device is instructed to start or cancel the inspection mode manually from the inspection device, and starts or cancels the inspection mode. There exists patent document 1 as literature regarding inspection.
JP 2004-48482 A

  Since the conventional system is configured as described above, if a moving body (for example, a train) equipped with an inspection device crosses a zone without canceling the inspection mode of the central device, the central device There was a problem that the inspection mode could not be canceled because it was not possible to determine that the test was crossed.

  The present invention has been made to solve the above-described problems, and even when a moving body (for example, a train) equipped with a measurement device performs measurement across zones, the measurement mode of the central device. The purpose is to release automatically. It is another object of the present invention to provide an inspection system capable of automatically restarting an inspection without interrupting the inspection manually and requesting a central device to start an inspection mode automatically.

The inspection system of the present invention is
A wireless station that performs wireless communication using a plurality of wireless lines;
A mobile communication device installed in a mobile body, which is communicably connected to the mobile communication device that communicates with the radio station via the plurality of radio channels, and is a measurement target that is a measurement target among the plurality of radio channels In an inspection system equipped with an inspection device that measures the quality of the line,
The radio station is
A station-side broadcast information creating unit for creating broadcast information indicating a use state of the measurement target line;
A station-side communication unit that transmits the broadcast information created by the station-side broadcast information creation unit;
A station-side inspection mode control unit that starts an inspection mode indicating an operation state corresponding to the measurement of the quality of the measurement target line by the inspection device;
The inspection device is
A measurement-side notification information receiving unit for receiving the notification information via the mobile communication device;
Based on the use state of the measurement target line indicated by the notification information received by the measurement side broadcast information receiving unit, the measurement of the quality of the measurement target line is started and a start signal indicating the start of measurement is sent to the mobile communication A measurement-side quality measurement unit that transmits to the wireless station via a device,
The station side communication unit of the wireless station is
Receiving the start signal transmitted by the inspection-side quality measurement unit of the inspection device;
The station side inspection mode control unit of the wireless station is
When the station side communication unit receives the start signal, the inspection mode is started in response to the received start signal.

  According to the present invention, the inspection device and the radio station can automatically start inspection.

Embodiment 1 FIG.
FIG. 1 is a configuration diagram showing a configuration of an inspection system 1000 according to Embodiment 1 of the present invention. In the figure, the inspection system 1000 includes a train 5 (an example of a moving body), a radio station 100a, and a radio station 100b. The configuration and operation of the radio station 100a and the radio station 100b are the same. In addition, when explaining the component of the radio | wireless station 100b, code | symbol "b" is attached | subjected.

  The train 5 includes an inspection mobile station 3 (mobile communication device) and an inspection device 4. The inspection device 4 includes an inspection side notification information receiving unit 41 and an inspection side quality measuring unit 42. The inspection mobile station 3 and the inspection device 4 are connected to each other by a transmission line 9. The transmission path 9 indicates that the content of the “broadcast information” transmitted by the “downlink radio waves 6a, 6b” is any of “free”, “in use”, and “inspection”. It is a transmission line for transmitting to the inspection device 4 from the transmission line. The inspection device 4 uses the inspection mobile station 3 to execute “inspection request” for instructing the central devices 1a and 1b to start the inspection mode and “instruction for canceling the inspection mode”. “Uplink radio wave 7” for transmitting “inspection cancellation request” is transmitted to the base stations 2a and 2b.

  The radio station 100a includes a central device 1a and two base stations 2a (an example of a station side communication unit). The central apparatus 1a includes a station side notification information creation unit 101a, a station side inspection mode control unit 102a, and a station side monitoring unit 103a. The base station 2 a transmits “downlink radio wave 6 a” for transmitting “notification information” described later to the inspection mobile station 3. The central apparatus 1a and each base station 2a are wiredly connected by the transmission path 8a.

  FIG. 2 is a diagram showing an example of the appearance of the central device 1a shown in FIG. The central device 1a in FIG. 2 is a computer that includes a CPU (Central Processing Unit), an input / output unit, and a storage unit. In FIG. 2, the central device 1a includes a system unit 700, a liquid crystal display 610, a keyboard (K / B) 611, a mouse 612, a compact disk device (CDD) 750, and a printer 760, which are connected by a cable. The central device 1a is connected to each base station 2a by wire.

  FIG. 3 is a hardware configuration diagram of the central device 1a of FIG. In FIG. 3, the central device 1a includes a CPU 710 that executes a program. The CPU 710 is connected to the ROM 731, RAM 732, liquid crystal display 610, K / B 611, mouse 612, communication board 733, FDD (Flexible Disk Drive) 740, CDD 750, printer 760, and magnetic disk device 720 via the bus 711. . In FIG. 3, each base station 2 a is wire-connected via the communication board 733.

  The magnetic disk device 720 stores an operating system (OS) 721, a window system 722, a program group 723, and a file group 724. The program group 723 is executed by the CPU 710, the OS 721, and the window system 722. In FIG. 3, a keyboard 611, an FDD 740, a CDD 750, and the like are input units. A liquid crystal display 610, a printer 760, an FDD 740, a CDD 750, and the like are output units. The magnetic disk device 720, the ROM 731, the RAM 732, and the like are storage units.

  The program group 723 executes functions described as “station side notification information creation unit”, “station side inspection mode control unit”, “station side monitoring unit”, etc. in the central apparatus 1a of the embodiment described below. Program to be stored. The program is read and executed by the CPU 710.

  Also, in the description of the embodiment described below, what is described as “station side notification information creation unit”, “station side inspection mode control unit”, “station side monitoring unit”, etc. is firmware stored in the ROM 731. It may be realized. Alternatively, it may be implemented by software alone, hardware alone, a combination of software and hardware, or a combination of firmware.

  The inspection device 4 in the first embodiment is also a computer similar to the central device 1a shown in FIGS. 2 and 3 (not shown). In the case of the inspection device 4 as well as the central device 1a, the program group 723 includes the “detection side quality measurement unit” and the “inspection side notification information reception unit” in the inspection device 4 of the embodiment described below. The program which performs the function demonstrated as etc. is memorize | stored. The central apparatus 1 a is connected to the base station 2 a via the communication board 733, whereas the inspection apparatus 4 is connected to the inspection mobile station 3 via the communication board 733.

  Next, “notification information” will be described. The central device 1a constantly transmits “notification information”. In the inspection system 1000, trains (inspection mobile stations) that exist in one zone (for example, zone A) share a finite "call and data line (for example, one line)" and the central device " It is assumed that a call or data transmission is performed with the command console. The inspection device 4 measures the line quality of the “call and data line”. The “call and data line” to be measured may be hereinafter referred to as a measurement target line. The usage status of the “call and data line” is determined by using the line other than the “call and data line” and “training information (indicating whether it is free, in use, or inspecting)” for all trains ( (Mobile station for inspection). As described above, the central apparatus and the train inspection mobile station perform communication using at least two wireless lines (a plurality of wireless lines) including the “measurement target line” and the line for transmitting the notification information. . Here, the “notification information” is information indicating the usage state of the “measurement target line” used for communication with the central apparatus. “Notification information” has three states. They are “free”, “in use”, and “inspection”. “Free” indicates that the “measurement target line” is not used and can be used. “In use” indicates a state in which the “measurement target line” is used for a call or data transmission. “In-measurement” indicates a state in which the “measurement target line” is used by the inspection device 4 for inspection. Only when “notification information” is “vacant” among the three states, the train can talk to the command console, or the inspection device 4 can inspect the quality. When the content of “notification information” is “inspection” or “in use”, the inspection device 4 cannot start inspection. The inspection system 1000 communicates using a “call and data line” in order to confirm the quality of a radio line (measurement target line) that performs this call or data transmission.

  Next, the start of inspection will be described with reference to FIG. FIG. 4 is a sequence diagram for explaining the inspection start operation in the inspection system 1000. In the figure, the base station converts the data from the central device into radio waves and transmits it to the inspection mobile station, and also receives the radio waves from the measurement mobile station and passes the data to the central device. It is expressed as “central / base station”.

  In FIG. 1, the case where the inspection device 4 equipped in the train 5 existing in the zone A starts the inspection will be described.

(1) The inspection mobile station 3 receives the “downlink radio wave 6a”. This “downlink radio wave 6a” is transmitted from the central apparatus 1a via the transmission path 8a by the base station 2a. This “downlink radio wave 6a” includes “notification information” created by the station side notification information creation unit 101a of the central apparatus 1a (S1).
(2) The inspection mobile station 3 transmits “notification information” transmitted by the “downlink radio wave 6a” to the inspection device 4 via the transmission path 9 (S2). The inspection-side notification information receiving unit 41 of the inspection device 4 receives this notification information. Upon receiving the “notification information”, the inspection device 4 determines whether the content of the “notification information” is “free”, “in use”, or “inspection” by the inspection-side quality measurement unit 42. Check.
(3) When the inspection-side quality measurement unit 42 of the inspection device 4 confirms that the content of the “notification information” is “vacant”, the inspection-side quality measurement unit 42 starts the measurement start operation for the measurement target line To do. That is, in order to obtain the start of the inspection mode from the central device 1a, an initial “inspection request” (an example of a start signal) instructing the start of the inspection mode is created. Here, “first” means that after the measurement is started as described later, the inspection request is intermittently transmitted during the measurement. The “inspection mode” means an operation state of the central apparatus 1 a corresponding to the measurement of the quality of the measurement target line by the inspection device 4. The inspection-side quality measurement unit 42 transmits the “uplink radio wave 7” for transmitting the created “inspection request” to the inspection mobile station 3 (S3, S4). As described above, when the inspection device 4 receives “notification information” indicating “vacant”, one feature is that the inspection device 4 requests inspection.
(4) The “uplink radio wave 7” for transmitting the “inspection request” transmitted from the inspection mobile station 3 is received by the base station 2a and transmitted to the central apparatus 1a via the transmission path 8a. As a result, the “first inspection request” is transmitted to the central apparatus 1a. The station side inspection mode control unit 102a of the central apparatus 1a starts the inspection mode in response to the received “first inspection request”.
(5) The station side notification information creation unit 101a of the central apparatus 1a changes “notification information” from “empty” to “under inspection” with the start of the inspection mode by the station side inspection mode control unit 102a. Then, the “downlink radio wave 6a” in which the content of the “notification information” is “under inspection” is transmitted from the base station 2a via the transmission line 8a (S5).
(6) The “downlink radio wave 6a” whose content of “notification information” is “under inspection” is received by the inspection mobile station 3 and is detected by the inspection device 4 via the transmission path 9. It is received by the side notification information receiving unit 41. Then, the fact that the content of the “notification information” is “inspection” is transmitted to the inspection-side quality measurement unit 42 (S6). Then, the inspection-side quality measurement unit 42 of the inspection device 4 starts inspection. Steps surrounded by broken lines in FIG. 4 indicate operations during the inspection. The above is the process of S1 to S6 in FIG.

Next, when the train 5 (the inspection device 4) moves from the zone A to the zone B, that is, when the train crosses the zone, the automatic cancellation of the inspection mode of the central device 1a, and the inspection device 4 moved to the zone B. The automatic start of the inspection mode will be described.
(1) The inspection-side quality measurement unit 42 of the inspection device 4 intermittently passes through the inspection mobile station 3 at predetermined time intervals (equal time intervals or non-uniform time intervals). The “uplink radio wave 7” for transmitting the “inspection request” after the first time (an example of a signal under measurement) is transmitted. The base station 2a receives this “uplink radio wave 7” and transmits the “testing request” for the second and subsequent times to the central apparatus 1a via the transmission line 8a.
(2) The station-side monitoring unit 103a of the central device 1a monitors whether the base station 2a has received the second and subsequent “inspection requests” transmitted intermittently, and the base station 2a performs the second and subsequent times. It is determined whether or not the “inspection request” is received. When the station-side monitoring unit 103a determines that “the base station 2a has received the second and subsequent inspection requests”, the station-side inspection mode control unit 102a continues the inspection mode. On the other hand, when the train 5 moves from the zone A to the zone B, the “inspection request” that the inspection device 4 transmits intermittently does not reach the central device 1a. In this case, the station-side monitoring unit 103a determines that “the base station 2a has not received the second and subsequent inspection requests”. When the station-side monitoring unit 103a determines that “the base station 2a has not received the second and subsequent inspection requests”, the station-side inspection mode control unit 102a cancels the inspection mode. As described above, when the second and subsequent “inspection request” is not transmitted to the central apparatus 1a even after a predetermined time has elapsed during the inspection mode, the station side monitoring unit 103a of the central apparatus 1a causes the inspection apparatus 4 to Is moved from zone A to another zone (for example, zone B). With this determination, the station side inspection mode control unit 102a cancels the inspection mode. When the inspection mode is cancelled, the station side broadcast information creating unit 101a changes the content of the “broadcast information” from “inspection” to “empty”, and from the base station 2a via the transmission path 8a, “Downlink radio wave 6a” for transmitting broadcast information of “vacant” is transmitted. By this operation, the central apparatus 1a can automatically cancel the inspection mode.
(3) When the inspection device 4 moves to the zone B and the inspection-side notification information receiving unit 41 receives “notification information” of “vacant” from the central device 1b via the measurement mobile station 3, As in the steps after S3 in FIG. 4, the inspection-side quality measurement unit 42 of the inspection device 4 requests the central device 1b to perform inspection, and the inspection is started thereafter. As a result, the inspection mode can be automatically started. This will be described in detail in the description of FIG.

Next, with reference to FIG. 5, the case where the inspection device 4 starts the inspection in the zone A and ends the inspection will be described. FIG. 5 shows the operation at the end of the inspection of the inspection system in the first embodiment. In the figure, the base station converts the data from the central device into radio waves and transmits it to the mobile station, and also receives the radio waves from the mobile station and passes the data to the central device. "Central / base station".
(1) The portion surrounded by the broken line in FIG. 5 indicates the step during the measurement as in the portion surrounded by the broken line in FIG. A description will be given from S27 onward. When the inspection device 4 in the train 5 located in the zone A finishes the inspection, the inspection-side quality measurement unit 42 of the inspection device 4 transmits the release of the inspection mode to the central device 1a. Then, the “uplink radio wave 7” for transmitting the “detection cancellation request” for instructing the cancellation of the inspection mode from the inspection mobile station 3 is transmitted (S26, S27).
(2) The “uplink radio wave 7” for transmitting the “inspection cancellation request” is received by the base station 2a, and the “inspection cancellation request” is transmitted to the central apparatus 1a via the transmission path 8a. The station side inspection mode control unit 102a of the central apparatus 1a cancels the inspection mode. And the station side measurement mode control part 102a of the central apparatus 1a transmits the response of the completion | finish of measurement through the base station 2a (S28, S29).
(3) The station side broadcast information creation unit 101a of the central device 1a changes the "broadcast information" from "inspection" to "empty", and the base station 2a transmits the "broadcast information" via the transmission path 8a. “Downlink radio wave 6a” whose content is “vacant” is transmitted (S30, S31).
(4) “Downlink radio wave 6a” in which the content of “Broadcast information” is “vacant” is received by the mobile station 3 for inspection, and the notification information on the inspection side of the inspection device 4 via the transmission path 9 In response to the transmission, the inspection-side quality measurement unit 42 ends the inspection (measurement) (S31).
(5) As described above with reference to S26 to S31 in FIG. 3, when the inspection is performed across the zones, the inspection device 4 transmits the first “inspection request” and the inspection is started. Send a “Request to cancel inspection” to end the inspection. On the other hand, when performing inspections across zones, the central device 1a in the zone from which the train has passed receives the “inspection cancellation request” because there is no train to transmit the “inspection cancellation request”. I can't. For this reason, as described above, in the central apparatus 1a, the station side monitoring unit 103a monitors the second and subsequent “inspection requests”. As a result of the monitoring, if the station side monitoring unit 103a determines that the second and subsequent “inspection request” cannot be received, the station side inspection mode control unit 102a ends the inspection mode. The same operation is performed when the inspection is started or ended in the zone B.

  Next, with reference to FIG. 6, the case where the inspection device 4 in the train 5 existing in the zone A moves to the zone B while performing the inspection will be described. FIG. 6 shows an operation at the time of zone movement of the inspection system 1000 according to the first embodiment. In the figure, the base station converts the data from the central device into radio waves and transmits it to the mobile station, and also receives the radio waves from the mobile station and passes the data to the central device. "Central / base station".

(1) In FIG. 6, the portions surrounded by the broken lines in S <b> 41 to S <b> 45 indicate the steps during the measurement similarly to the portions surrounded by the broken lines in FIG. 4. In the zone A, the inspection mobile station 3 receives the “downlink radio wave 6a” transmitted from the central station 1a via the transmission path 8a by the base station 2a. Then, the “downlink radio wave 6 a” is transmitted from the inspection mobile station 3 to the inspection device 4 via the transmission path 9. Since the inspection device 4 is under inspection (corresponding to the portion surrounded by the broken line in FIG. 6), the content of the “notification information” included in the “downlink radio wave 6a” transmitted to the inspection device 4 is “under inspection” Is.
(2) The case where the inspection apparatus 4 moves to the zone B (S46 and after) will be described. Consider a case where the inspection device 4 in the train 5 moves from zone A to zone B. The inspection device 4 transmits a “downlink radio wave 6b” (notification information) transmitted from the central device 1b via the transmission line 8b via the inspection mobile station 3 to the inspection side notification information receiving unit. 41. In the case of FIG. 6, in S46, the radio station 100b (central apparatus 1b, base station 2b) and the mobile station 5 ′ are using the measurement target line by voice communication. Therefore, the use state of the line indicated by the “notification information” transmitted by the radio station 100b (central device 1b, base station 2b) is “in use” (S47, S48). In S49, this voice communication is terminated, and “notification information” becomes “vacant”. During the quality measurement of the measurement target line by the inspection-side quality measurement unit 42 of the inspection device 4, “notification information” indicating “free” is newly received by the inspection-side notification information receiving unit 41 via the “transmission path 9”. 4 (S50, S51), as in the operations after S3 in FIG. 4, the inspection-side quality measurement unit 42 newly starts the measurement operation and performs the first “inspection request for inspection mode” instruction. ”(Start signal) is transmitted from the inspection mobile station 3 (S52, S53). The “uplink radio wave 7” for transmitting the inspection request is received by the base station 2b and transmitted to the central apparatus 1b via the transmission path 8b. Thereby, the inspection request is transmitted to the central apparatus 1b, and the station side inspection mode control unit 102b of the central apparatus 1b starts the inspection mode.
(3) Further, in the central apparatus 1b, the station side broadcast information creation unit 101b changes “broadcast information” from “vacant” to “under inspection”. The “notification information” changed to “under measurement” is transmitted as “downlink radio wave 6b” from the base station 2b via the transmission path 8b.
(4) The “downlink radio wave 6b” for transmitting the “notification information” that has been inspected is received by the inspection mobile station 3 and is notified to the inspection side of the inspection device 4 via the transmission path 9. The information receiving unit 41 is notified that the content of the “notification information” is “under inspection”, and the inspection-side quality measurement unit 42 of the inspection device 4 starts inspection (measurement).
(5) After that, the inspection-side quality measurement unit 42 of the inspection device 4 causes the “uplink radio wave 7” to transmit the “inspection request” for the second and subsequent times from the inspection mobile station 3 intermittently.
(6) The base station 2b receives the “uplink radio wave 7” that transmits the “inspection request”, and transmits the “inspection request” to the central apparatus 1b via the transmission path 8b.
(7) The station side monitoring unit 103b of the central apparatus 1b confirms the “inspection request” transmitted intermittently, for example, at regular intervals. As a result of this monitoring, when the “inspection request” has been received, the station side inspection mode control unit 102b continues the inspection mode.
(8) As described above, in zone A, since the “inspection request” is not transmitted to the central apparatus 1a even after a predetermined time has passed, the station side monitoring unit 103a of the central apparatus 1a detects the inspection apparatus 4 from zone A to zone. Judging that it has moved to B, the station side inspection mode control unit 102a cancels the inspection mode accordingly. When the inspection mode is cancelled, the station side broadcast information creation unit 101a changes the content of the “broadcast information” from “inspection” to “empty”, and transmits “downlink” from the base station 2a via the transmission line 8a. Radio wave 6a "is transmitted.
(9) As described above, even when the inspection device 4 moves from the zone A to the zone B, the inspection can be automatically restarted and the inspection mode of the central device 1a can be automatically canceled.

  FIG. 7 is a diagram summarizing a case in which the inspection device and the central device start and stop the inspection in the inspection system 1000.

The inspection device starts inspection in the following cases.
(1) When “not available” notification information is received when measurement is not in progress, the inspection device starts inspection (measurement).
(2) When the “vacant” notification information is received before the inspection cancellation request is transmitted during measurement, the inspection device newly starts inspection.

The inspection device cancels the inspection in the following cases.
(1) When “not available” notification information is received before sending a measurement cancellation request during measurement, the measurement device ends the previous measurement (cancel the previous measurement and To resume inspection).
(2) The inspection device cancels the inspection when the inspection is completed.

The central device starts inspection in the following cases.
(1) When the first “inspection request” is received from the inspection device, the central device starts the inspection mode.

The central unit cancels the inspection in the following cases.
(1) When the “inspection cancellation request” is received, the central apparatus cancels the inspection mode.
(2) If the second and subsequent “inspection request” cannot be received during the inspection, the central device cancels the inspection mode.

  In the inspection system 1000 according to the first embodiment, when the inspection-side notification information receiving unit 41 of the inspection device 4 receives “not-available” notification information, the inspection-side quality measurement unit 42 starts the inspection. Therefore, the inspection device 4 can automatically start inspection. Further, when the central apparatus receives the first inspection request via the base station, the station side inspection mode control unit starts the inspection mode. Thus, the central device can automatically start the inspection mode.

  In the inspection system 1000 according to the first embodiment, the inspection-side quality measuring unit 42 of the inspection device 4 intermittently transmits the second and subsequent inspection requests during the inspection. And if the station side monitoring unit of the central device monitors whether or not the second and subsequent inspection requests can be received, and determines that it is not received, the station side inspection mode control unit cancels the inspection mode, The inspection mode can be automatically canceled when the train crosses the zone.

  In the inspection and measurement system 1000 according to the first embodiment, the inspection-side quality measurement unit 42 resumes the measurement of the line quality when the inspection-side notification information receiving unit 41 receives notification information indicating availability during the measurement. . Therefore, the measurement of the line quality can be resumed even when the zone is crossed.

  In the inspection device 4 of the first embodiment, when the inspection-side notification information receiving unit 41 receives “empty” notification information, the inspection-side quality measurement unit 42 starts the measurement. Therefore, the inspection device 4 can automatically start inspection.

  In the inspection device 4 of the first embodiment, the inspection-side quality measurement unit 42 resumes the measurement of the line quality when the inspection-side notification information receiving unit 41 receives notification information indicating availability during the measurement. . Therefore, the measurement of the line quality can be resumed even when the zone is crossed.

  In the central device of the first embodiment, when the first inspection request is received from the inspection device 4 via the base station, the station-side inspection mode control unit starts the inspection mode. Thus, the central device can automatically start the inspection mode.

  In the central device according to the first embodiment, the station side monitoring unit monitors whether or not the second and subsequent inspection requests can be received, and if the station side monitoring unit determines that the request has not been received, the station side inspection mode control unit performs the inspection mode. Is released. Therefore, the inspection mode can be automatically canceled even when the train crosses the zone.

It is a block diagram which shows the structure of the inspection system 1000 by Embodiment 1. FIG. It is a figure which shows the example of the external appearance of the central apparatus by Embodiment 1. FIG. 2 is a diagram illustrating an example of a hardware configuration of a central device according to Embodiment 1. FIG. 5 is a flowchart showing an operation at the start of inspection by the inspection system 1000 according to the first embodiment. 6 is a flowchart showing an operation at the end of inspection of the inspection system 1000 according to the first embodiment. 5 is a flowchart showing an operation at the time of zone crossing of the inspection system 1000 according to the first embodiment. It is a figure which shows the start and completion | finish of the inspection of the inspection apparatus and central apparatus of the inspection system 1000 by Embodiment 1. FIG.

Explanation of symbols

  1a, 1b Central device, 2a, 2b Base station, 3 mobile station for inspection, 4 inspection device, 41 Inspection side notification information reception unit, 42 Inspection side quality measurement unit, 5 train, 6a, 6b Downstream radio wave, 7 uplink radio wave, 8a, 8b transmission line, 9 transmission line, 100a, 100b wireless station, 101a station side broadcast information creation unit, 102a station side detection mode control unit, 103a station side monitoring unit, 611 keyboard, 612 mouse, 610 Liquid crystal display, 700 system unit, 720 magnetic disk device, 721 OS, 722 window system, 723 program group, 724 file group, 731 ROM, 732 RAM, 733 communication board, 740 FDD, 750 CDD, 760 printer, 1000 inspection system .

Claims (7)

A wireless station that performs wireless communication using a plurality of wireless lines;
A mobile communication device installed in a mobile body, which is communicably connected to the mobile communication device that communicates with the radio station via the plurality of radio channels, and is a measurement target that is a measurement target among the plurality of radio channels In an inspection system equipped with an inspection device that measures the quality of the line,
The radio station is
A station-side broadcast information creating unit for creating broadcast information indicating a use state of the measurement target line;
A station-side communication unit that transmits the broadcast information created by the station-side broadcast information creation unit;
A station-side inspection mode control unit that starts an inspection mode indicating an operation state corresponding to the measurement of the quality of the measurement target line by the inspection device;
The inspection device is
A measurement-side notification information receiving unit for receiving the notification information via the mobile communication device;
Based on the use state of the measurement target line indicated by the notification information received by the measurement side broadcast information receiving unit, the measurement of the quality of the measurement target line is started and a start signal indicating the start of measurement is sent to the mobile communication A measurement-side quality measurement unit that transmits to the wireless station via a device,
The station side communication unit of the wireless station is
Receiving the start signal transmitted by the inspection-side quality measurement unit of the inspection device;
The station side inspection mode control unit of the wireless station is
An inspection system that starts the inspection mode in response to the received start signal when the station side communication unit receives the start signal. The inspection-side quality measurement unit of the inspection device is
When measurement of the quality of the measurement target line is started, a signal under measurement indicating that measurement is in progress is transmitted to the wireless station at a predetermined interval via the mobile communication device,
The station side communication unit of the wireless station is
Receiving the measuring signal;
The radio station further includes:
A station-side monitoring unit that monitors a reception state of the signal under measurement received by the station-side communication unit and determines whether the signal under measurement is received by the station-side communication unit;
The station side inspection mode control unit of the wireless station is
2. The inspection mode is canceled when the station side monitoring unit determines that the signal under measurement is not received by the station side communication unit during the inspection mode. Inspection system. The inspection-side quality measurement unit of the inspection device is
When the measurement side notification information receiving unit receives notification information indicating that the measurement target line is in an unused state during measurement of the quality of the measurement target line via the mobile communication device, 2. The inspection system according to claim 1, wherein measurement of the quality of the measurement target line is newly started. In the inspection device that measures the quality of the radio link,
A test-side notification information receiving unit that receives notification information indicating a use state of a measurement target line that is a measurement target wireless line for measuring quality;
A measurement-side quality measurement unit that starts measurement of the quality of the measurement target line based on a usage state of the measurement target line indicated by the notification information received by the measurement-side notification information reception unit. Characteristic inspection device. The inspection-side quality measurement unit is
When the measurement side broadcast information receiving unit receives broadcast information indicating that the measurement target line is in use, during measurement of the quality of the measurement target line, the measurement of the quality of the measurement target line is performed. The inspection apparatus according to claim 4, wherein the inspection apparatus is newly started. In the radio station where the quality of the measurement target line to be measured among the multiple radio lines used by the own station is measured,
A station-side broadcast information creating unit for creating broadcast information indicating a use state of the measurement target line;
The measurement target indicated by the notification information from the measurement device that transmits the notification information generated by the station-side notification information generation unit and measures the quality of the measurement target line that has received the notification information. A station side communication unit that receives a start signal indicating the start of measurement of the quality of the measurement target line generated based on the use state of the line;
In response to the start signal received by the station-side communication unit, a station-side detection mode control unit that starts a measurement mode indicating an operation state corresponding to the measurement of the quality of the measurement target line by the measurement device; A radio station comprising: The inspection device is
When measurement of the quality of the measurement target line is started, a measurement signal indicating that measurement is in progress is transmitted at a predetermined interval,
The station side communication unit
Receiving the measuring signal;
The radio station further includes:
A station-side monitoring unit that monitors a reception state of the signal under measurement received by the station-side communication unit and determines whether the signal under measurement is received by the station-side communication unit;
The station side inspection mode control unit is
7. The inspection mode is canceled when the station side monitoring unit determines that the signal under measurement is not received by the station side communication unit during the inspection mode. Radio stations.

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