JP4707652B2 - Vehicle maintenance information communication system - Google Patents

Description

  The present invention relates to a vehicle maintenance information communication system, and more particularly to a vehicle maintenance information communication system capable of transmitting important failure information to a ground side system without stagnation.

  A conventional vehicle maintenance information communication system detects a failure of an in-vehicle device by a failure detection unit on the vehicle, and transmits failure occurrence information from a vehicle wireless transmission / reception unit to a radio ground station and further to a radio base station by train radio. From there, it was transmitted to the maintenance service site via the network.

  The maintenance service site analyzes the failure data received, identifies the failure part / cause, and sends the content / procedure of the work required for the failure part / cause and recovery to the vehicle location. Replacement parts were arranged with the manufacturer that delivered the internal equipment, and the manufacturer sent information, personnel, and replacement parts necessary for repair and replacement to the vehicle station as needed.

  On the other hand, the driver of the vehicle reports the vehicle status to the driving command station, and the driving command station determines whether or not the faulty vehicle can continue to operate. Was stopped and the vehicle was guided to the depot.

The vehicle station prepares for the recovery work based on the work information obtained from the maintenance service site, and starts the recovery work upon arrival of the vehicle.
In addition, failure analysis information collection means is provided to analyze the cause of failure, etc., collecting not only the event at the time of failure, but also the operation status of the equipment before and after the failure as analysis information, and the collected failure The analysis information is transmitted to the ground side by the on-vehicle wireless transmission / reception means, thereby identifying the faulty part and analyzing the cause of the fault. (For example, refer to Patent Document 1).

JP 2002-59834 A (paragraphs 0022-0027, FIG. 2)

  Conventional maintenance information communication systems based on vehicle failures are configured as described above. However, in actual train operation, wireless data transmission between the vehicle and the ground at the time of failure may not always be possible. .

  In the conventional vehicle maintenance information communication system, when wireless data transmission fails, the failure detection means on the vehicle repeats the retransmission of the same information until receipt confirmation information is received from the ground side system. There was a problem of taking the processing load of.

  In addition, failure information on devices such as controllers and brakes that have a large impact on train operation is more important than failure information on other devices, and is preferentially transmitted to the vehicle failure information database on the maintenance service site on the ground. Although it is necessary, in the conventional vehicle maintenance information communication system, there was no mechanism for distinguishing the importance of failure information and transmitting it to the ground side system. Therefore, there is a possibility that important failure information may stagnate depending on the congestion situation of the radio line. There was also a problem.

  The present invention has been made to solve the above-described problems, and a vehicle maintenance information communication system that can reduce the processing load of failure detection means on a vehicle without stagnation of highly important failure information. The purpose is to provide.

  A vehicle maintenance information communication system according to the present invention is provided on a vehicle, detects failure of the vehicle and issues failure occurrence information, and determines the importance of the failure occurrence information on the vehicle. A failure importance level judging means for classifying into failure occurrence information and general failure occurrence information, storing the important failure occurrence information in an important information buffer, and storing the general failure occurrence information in a general information buffer, and the important information buffer On the emergency line on-board radio transmission / reception means for transmitting the critical failure occurrence information to the emergency base station on the ground via the emergency line, and information on the general information buffer, and the general failure occurrence information. Is connected to the ground emergency base station and the normal base station via a network. And it is obtained by a maintenance service site for receiving failure information from each of the base stations.

  The vehicle maintenance information communication system according to the present invention is configured as described above, and an important information buffer and a general information buffer are provided between the vehicle failure detection means and the vehicle wireless transmission / reception means, and information is stored in each of them. Thus, regardless of whether the ground side system receives or not, re-transmission from the failure detection means on the vehicle becomes unnecessary, and the processing load on the failure detection means is reduced.

  In addition, the importance of failure occurrence information is determined by failure importance determination means, and important failure occurrence information is transmitted to the ground using an emergency line. Can be sent to.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing a configuration of a vehicle maintenance information communication system according to the first embodiment.

  In the vehicle maintenance information communication system of the first embodiment, when a failure of the in-vehicle device is detected by the failure detection unit 11 on the vehicle 1, the failure occurrence information Fx is transmitted to the failure importance level determination unit 14, where the failure is detected. Is an important failure related to the controller or brake, or a general failure related to equipment other than the controller or brake, etc., and in the case of an important failure, important failure occurrence information Fi is generated and this information is stored in the important information buffer. 15.

  In the case of a general failure, general failure occurrence information Fg is generated and stored in the general information buffer 16. The general information buffer 16 also stores failure analysis information Fa collected by the failure analysis information collecting means 13 similar to the conventional vehicle maintenance information communication system. Since the failure analysis information Fa may include state information for representing related information in a graph format, the data capacity may be larger than the failure occurrence information Fx.

  On the other hand, on the vehicle 1, an on-vehicle wireless transmission / reception means 12 for an ordinary wireless line R2 corresponding to an on-vehicle wireless transmission / reception means in a conventional vehicle maintenance information communication system and an emergency line vehicle using the emergency wireless line R1. The upper wireless transmission / reception means 17 is provided, and the on-vehicle wireless transmission / reception means 17 for emergency lines accesses the important information buffer 15 at predetermined intervals to confirm the presence / absence of important failure occurrence information Fi.

  Note that the emergency line R1 is limited to only important failures with small capacity data, as in the case where it is necessary to promptly transmit only the first report that a failure has occurred. Refers to a communication infrastructure that has a characteristic that it can be transmitted and received, has a short line occupation time, and can be released in a short time, and can be brought online. In contrast, the normal line R2 can transmit and receive large amounts of information, and has a characteristic that the occupied time of the line becomes long. For this reason, failure analysis information Fa that may increase the data capacity is transmitted through the general information buffer 16 via the normal line R2 as described later.

  When new important failure occurrence information Fi is confirmed in the important information buffer 15, the information is taken out from the important information buffer 15, and the emergency ground radio station R1 is used for the emergency radio station R1, and further the emergency Is transmitted to the terrestrial radio base station 25, and then to the maintenance service site 23 via a network (not shown).

  The on-vehicle wireless transmission / reception means 12 for the normal line provided on the vehicle 1 accesses the general information buffer 16 as necessary, takes out the general failure occurrence information Fg and the failure analysis information Fa, and performs normal wireless communication similar to the conventional one. The data is transmitted to the normal line radio ground station 21 and further to the normal line terrestrial radio base station 22 using the line R2, and from there to the maintenance service site 23 via a network (not shown).

It is the schematic which shows the structure of the vehicle maintenance information communication system by Embodiment 1 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Vehicle, 11 Failure detection means, 12 On-vehicle wireless transmission / reception means, 13 Failure analysis information collection means, 14 Failure importance determination means, 15 Important information buffer, 16 General information buffer, 17 On-vehicle wireless transmission / reception means for emergency lines, 21 Radio ground station, 22 Radio base station, 23 Maintenance service site, 24 Emergency ground radio station, 25 Emergency ground radio base station, Fx failure occurrence information, Fa failure analysis information, Fi critical failure occurrence information, Fg General Failure occurrence information, R1 emergency radio link, R2 normal radio link.

Claims (3)

  A failure detection means for detecting failure of the vehicle and generating failure occurrence information provided on the vehicle, and determining the importance of the failure occurrence information on the vehicle, and classifying it into important failure occurrence information and general failure occurrence information In addition, the important failure occurrence information is stored in the important information buffer, the failure importance level determining means for storing the general failure occurrence information in the general information buffer, the information in the important information buffer is confirmed, and the important failure occurrence information is confirmed. On-vehicle wireless transmission / reception means for transmitting to the emergency base station on the ground via the emergency line and the information on the general information buffer are confirmed, and the general failure occurrence information is transmitted to the ground normal base station via the normal line. Connected to the normal line on-vehicle wireless transmission / reception means, the ground emergency base station and the normal base station via a network, and receives failure occurrence information from each base station. Vehicle maintenance information communication system that includes a maintenance service sites.   2. The vehicle maintenance information communication system according to claim 1, further comprising failure analysis information collecting means provided on the vehicle for collecting failure analysis information and supplying the failure analysis information to the general information buffer.   The vehicle maintenance information communication system according to claim 1 or 2, wherein the emergency line on-board wireless transmission / reception means accesses the important information buffer at predetermined intervals.

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