KR20200090360A - Train safety monitoring device and the method for real time transmission, Integrated monitoring and control system thereof - Google Patents

Abstract

The present invention relates to an apparatus for transmitting train status information in real time, which transmits train status information related to a train service to a control server in real time through LTE communications, temporarily stores train status information that could not be transmitted due to an occurrence of an LTE communications failure, and then transmits the train status information to the control server through Wi-Fi communications when a train enters a vehicle base. The apparatus for transmitting train status information in real time, which is connected to a multifunction vehicle bus (MVB) communications line (120) of a train and performs sniffing on train status information, comprises: an LTE antenna (101) and an LTE modem (102) for LTE communications; a Wi-Fi antenna (103) and a Wi-Fi module (104) for Wi-Fi communications; and a CPU board (107) controlled to transmit the sniffed train status information to a control server (200) in real time by using the LTE communications, store train status information not transmitted in real time due to the LTE communications failure in a memory (108), and transmit the train status information to the control server (200) by using Wi-Fi communications if a train is in a state in which Wi-Fi communications with the control server (200) is possible.

Description

Train safety information device and method, integrated monitoring control system including the same{Train safety monitoring device and the method for real time transmission, Integrated monitoring and control system thereof}

The present invention relates to a real-time transmission device for train status information, and more specifically, prioritizes all train status information generated during the operation of the train and transmits it to the control server in real time. The failed train status information relates to an apparatus and method for real-time transmission of train status information to be transmitted to a control server after entering the vehicle base, and an integrated monitoring and control system including such apparatus.

For the efficiency and stability of train operation, it is important to continuously communicate information about trains in motion. In addition, the transmission of this information is transmitted to the control server by the running train, and the control server is used as information necessary to establish an appropriate response in the event of an accident or a safe operation of the train based on the information.

With regard to the transmission of train information, an information transmission device (10-2018-0075876) of a railway vehicle filed by the present applicant and published on July 5, 2018 has been proposed, and such prior patents classified railway vehicle information. Afterwards, some of them are transmitted to the control server through the LET network and the rest are transmitted to the control server through the Wi-Fi network.

However, the preceding patents will be proposed because of the limitation of the amount and type of information to transmit train information to the control server for practical reasons such as technical limitations and security. In other words, since the status information of trains generated in connection with train operation is very diverse and the amount of data is not small, practically all the status information of trains could not be transmitted to the control server using the existing wireless network instead of the LET network. Therefore, it can be said to be a method of classifying and transmitting train status information.

In addition, in the prior art, in order to reduce the load on the control server before transmitting the train status information to the control server, there is a case where the information is processed in advance on the train and transmitted to the control server. That is, it took a considerable amount of time for the control server to receive and analyze train information. However, in terms of reducing the load on the control server, it was possible to expect a certain effect, but when processing information on the train, an error may occur that is incorrectly converted or changed. As a result, the likelihood that the control server receives the wrong information increases as much. Did.

This is an important issue in the safety of train operation. Even if the control server does not process the analysis of train information in real time, it is possible to minimize damage to the risk of accident by quickly preparing a countermeasure for safe operation. On the other hand, if the control server responds by receiving incorrect information, it can cause much more damage beyond the predictable level.

Therefore, the object of the present invention is to ensure the safety of train operation by allowing the real-time and continuous transmission to the control server using the LTE communication network in the form of raw data that does not process all train status information related to train operation. And improve efficiency.

Another object of the present invention is that the train information that cannot be transmitted in real time through LTE communication is temporarily stored in the train and then transmitted to the control server through the Wi-Fi network when the train enters the vehicle base, thereby substantially occurring during train operation. All train information is transmitted to the control server.

The real-time transmission device for train status information of the present invention for achieving the above object is a device that is connected to a multi-function vehicle bus (MVB) communication line of a train and sniffs train status information; LTE antenna and LTE modem for LTE communication; Wi-Fi antenna and Wi-Fi module for Wi-Fi communication; The sniffer train status information is transmitted to the control server in real time using the LTE communication, and the train status information that is not transmitted in real time due to the LTE communication failure is stored in a memory and the train is in a state where Wi-Fi communication with the control server is possible. When it is configured to include a CPU board that controls to transmit to the control server using Wi-Fi communication.

Here, the train status information real-time transmission device may further include a charging battery for supplying power until all of the train status information stored in the memory is transmitted to the control server.

And the present invention further includes a GPS module 109 for acquiring the location information of the train, the train location information obtained by the GPS module 109, and the failure due to the performance of the self-diagnosis function of the real-time transmission device for train status information And the diagnosis status information is transmitted in real time using LTE communication when the train status information is transmitted to the control server 200 or is transmitted using Wi-Fi communication.

Integrated monitoring and control system according to another aspect of the present invention, the above-described real-time transmission device for train status information; It includes a control server for real-time transmission of train status information connected to the train status information real-time transmission device and an LTE network, and provided in front of the LTE network and the control server so that the train status information is transmitted through an encrypted communication channel. Virtual private network (VPN) equipment is further installed.

In accordance with another aspect of the present invention, a method for real-time transmission of train status information includes: a train status information real-time transmission device (TSMD) installed in a cab switchboard of a train, which is being transmitted through a MVB (Multifunction Vehicle Bus) communication line. A first step of sniffing (sniffing); A second step of real-time transmission of the sniffed train status information to a control server through LTE communication at the request of the control server; In addition, when the TSMD and the control server are unable to access due to a failure of the LTE network, the train status information that is not transmitted in real time is stored in a memory, and then the control server is connected to the control server via Wi-Fi communication while Wi-Fi communication is possible with the control server. It includes the third step of transmitting.

The third step includes: a step 3-1 in which the TSMD attempts to connect to a control server every predetermined time for the Wi-Fi communication; Step 3-2 checking whether there is untransmitted train status information when connected to the control server according to the connection attempt; Step 3-3, when there is untransmitted train status information according to the check result, transmits it to the control server using Wi-Fi communication; In addition, steps 3-4 include deleting information stored in the memory when the transfer is completed.

According to the present invention as described above, TSMD connected to the MVB communication line sniffs train status information being transmitted, and transmits it to the control server in real time through the LTE network. Because the LTE network is used, a large amount of train status information can be smoothly transmitted to the control server, and since it is a real-time transmission, the engineer and the controller can instantly know the site conditions related to the train operation, and actively respond to accident risks and accidents. The effect that this is possible can be expected.

In addition, train status information that has not been transmitted due to LTE network failure is temporarily stored in the internal memory of TSMD, and when the train enters the vehicle base and Wi-Fi communication with the control server becomes available, trains that have not been transmitted through Wi-Fi communication Since the status information is transmitted, it is possible to compensate for problems caused by the failure of the LTE network, and accordingly, the present invention is to enable the control server to acquire all train status information related to train operation.

Moreover, in the present invention, since the train status information transmitted through the LTE network or the Wi-Fi network is transmitted to the control server in the form of raw data without any conversion process, it is possible to fundamentally prevent the risk that the control server receives incorrect information. This is possible because the present invention uses an LTE network capable of transmitting a large amount of train status information.

1 is an external perspective view of TSMD according to an embodiment of the present invention
2 is an internal configuration diagram of TSMD according to an embodiment of the present invention
3 is an overall configuration diagram of an integrated surveillance control system including TSMD of the present invention.
Figure 4 is a flow chart illustrating the process of TSMD transmits the train status information to the control server according to an embodiment of the present invention

Next, the present invention will be described in detail based on the embodiment illustrated in the drawings. As shown in FIG. 1, the train status monitoring device (TSMD) 100 of the present invention has an overall appearance in a predetermined case.

In addition, the TSMD 100 is provided with an LTE antenna 101 and a Wi-Fi antenna 103 to perform a function of transmitting train status information to the control server 200 through the LTE network and the Wi-Fi network, as shown in FIG. Inside, an LTE modem 102, a Wi-Fi module 104, a gateway board 105, a power board 106, a CPU board 107, a memory 108, and the like are configured.

The CPU board 107 according to the present invention is equipped with a CPU (not shown) and controls the overall operation of the TSMD 100. The train status information transmitted through the gateway board 105 is transmitted through the LTE modem 102 and the Wi-Fi module. It serves to communicate with the control server 200 through 104. That is, it serves to transmit the train status information extracted from the state and sensor values loaded on the vehicle's MVB (Multifunction Vehicle Bus) communication line 120 to the control server 200 through LTE communication or Wi-Fi communication.

Then, the train status information not transmitted through LTE communication is temporarily stored in the memory 108 and then transmitted to the control server 200 in a Wi-Fi manner when Wi-Fi communication is possible (ie, when the train enters the vehicle base). do.

As such, the CPU board 107 transmits all train status information related to train operation to the control server 200 without fail, and at this time, the information transmitted to the control server 200 is in the form of raw data without any processing.

In addition, the gateway board 105 transmits the train status information to the CPU board 107 by sniffing train status information from the MVB communication line 120, and the power board 106 converts DC 72V for trains to DC 12V. To perform. In addition, the memory 108 temporarily stores train status information that is not transmitted through the LTE network according to the control operation of the CPU.

The TSMD 100 according to the present invention is provided with a GPS module 109. By the GPS module 109, the train status information and the location information of the train can be transmitted to the real-time control server 200, and thus the control server 200 fails when analyzing data based on the train status information. Or, when a failure occurs or a failure is predicted, the current location of the train can be grasped. This means that it is possible to quickly take a response and response to a train failure or failure.

Referring to FIG. 3, the TSMD 100 is connected to the MVB communication line 120 while being installed on the switchboard of the cab power vehicle located at the front and rear of the vehicle. In addition, various devices 130 are connected to the MVB communication line 120 to generate train status information. The devices 130 include all devices for checking information related to train operation, including various sensors.

The train status information provided in this embodiment is shown in the following [Table 1]. Of course, the train status information is not necessarily limited to this.

Then, the control server 200 is provided through the network. The control server 200 analyzes all train status information sent from the vehicle and instructs and controls all operations related to the safety of train driving. Here, when the train status information is transmitted through LTE communication, a virtual private network (VPN) device is installed on the network to provide an encrypted communication channel for security of the communication network, and a VPN server must also be installed in front of the control server in the integrated safety control room. something to do.

Of course, only when the above-mentioned network for LTE communication is a general commercial network, and only train status information is transmitted through a dedicated LTE network, such VPN equipment need not be installed.

Next, a method of transmitting train status information to the control server 200 through the TSMD device 100 will be described. When the train operation starts, various devices 130 and sensors installed in the vehicle will detect or check train status information in [Table 1]. And the processed train status information communicates with other passenger cars through the MVB communication line 120.

When the train status information is transmitted through the MVB communication line 120, the TSMD 100 sniffs the train status information (s100). This means that when the CPU board 107 of the TSMD 100 requests the transmission of train status information to the gateway board 105, the gateway board 105 sniffs the train status information carried on the MVB communication line 120. It is performed in a manner of transmitting to the CPU board 107.

And the TSMD 100 must transmit the train status information sniffed to the control server 200 in real time using LTE communication (s102), which can transmit train status information in the order of sniffing or the control server 200 Can be sent upon request. The request method of the control server waits for a request to transmit train status information from the control server 200 while the TSMD 100 monitors the connection state with the control server 200, and then requests a transmission from the control server 200. It is to transmit the train status information at a predetermined cycle (for example, 1 second cycle) at the time when the request packet is delivered.

At this time, the TSMD 100 performs a self-diagnosis function to grasp the failure and diagnosis status of the TSMD device. When the train status information is transmitted, information related to the failure and diagnosis status is also transmitted in real time. Of course, if real-time transmission is not possible, future transmission via a Wi-Fi network will also be possible.

In addition, since the GPS module 109 is provided in the present invention, the location information of the train acquired by the GPS module 109 is also transmitted to the control server 200 together with the train status information and the information according to the self-diagnosis function. Here, since the location information of the train is for allowing the control server 200 to quickly know the current location of the train when a failure or failure occurs or a failure is predicted, it is preferable that the train is transmitted in real time. Of course, if real-time transmission of train location information is not possible, it will be transmitted through the Wi-Fi network, and based on the location information of the train transmitted through the Wi-Fi network, various operation information of the train may be analyzed later.

As described above, according to the present invention, all status information generated during train operation can be transmitted to the control server 200 through LTE communication, and when commercial LTE communication is used, it is transmitted through an encrypted communication channel provided by a VPN. This is done. And because it uses LTE communication, it will be possible to transmit more train status information than before. In addition, since the train status information transmitted to the control server 200 is transmitted in the raw data format in which no conversion or change is made in the TSMD 100, transmission of incorrect information can be fundamentally prevented.

On the other hand, it is most efficient for train status information to be transmitted to the control server 200 through LET communication, but it is impossible to connect to the control server due to an error in the LTE device, an error in the LTE network, or a program error. Information is not transmitted (s104, s106). In addition, train status information that is not transmitted due to the inability to connect is not omitted as it is, but is stored in the memory (s108) and then transmitted to the control server 200 as described below.

When the train is running, the Wi-Fi module tries to connect to the control server every predetermined time (s110). That is, while the train status information is transmitted in real time through LTE communication, the Wi-Fi module 104 attempts to connect to the control server 200 to continuously monitor whether the train enters the vehicle base. Of course, during this process, the train status information is transmitted in real time or the untransmitted train status information is stored in the memory 108. The train status information stored in the memory 108 is also raw data that has not undergone any conversion or processing.

And if the connection of the TSMD 100 and the control server 200 is successful according to the connection attempt (that is, this means that the train enters the vehicle base) (s112), the CPU board 107 is the memory 108 It accesses and checks whether there is train status information for which transmission has failed through LTE communication. If the train status information is stored in the memory 108 according to the check result, the CPU board 107 transmits the train status information stored through Wi-Fi communication through the Wi-Fi module 104 to the control server 200 (s114), When the transfer is completed, information stored in the memory 108 is deleted.

The train status information stored in the memory 108 is preferably completed before the power supply is cut off because the train operation is completely stopped. However, due to the large amount of data in the train status information or the poor Wi-Fi communication status, the transmission of all information may not be completed before the power supplied to the train is cut off. Then, the control server 200 may not receive all of the train status information stored in the memory 108.

Therefore, the present invention allows the transmission of untransmitted train status information even after the power is cut off by installing a rechargeable battery in the TSMD (100). Although the charging battery is not shown in the drawing, it is preferable to be configured in connection with the power board 106 of the TSMD 100.

As described above, the present invention is that the control server 200 receives the train status information in real time through the LTE network, and accordingly, it is appropriate for an accident risk and an accident in that an engine operator and a controller can be provided in real time. You can respond. Also, due to various factors, train status information that has not been transmitted in real time can be additionally transmitted through a Wi-Fi network, so that all train status information can be obtained.

As described above, it is described with reference to the illustrated embodiment of the present invention, but these are only exemplary, and those skilled in the art to which the present invention pertains may variously depart from the spirit and scope of the present invention. It will be apparent that variations, modifications and other equivalent embodiments are possible. Therefore, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

That is, although the above embodiment is described as sniffing train status information being transmitted through the multifunction vehicle bus (MVB) communication line 120 of the train, the present invention is a train in which the communication line is RS485 or RS422. Even in the configuration, it is possible to perform the above-described process in the same way by sniffing information on the train status.

100: TSMD
101: LTE antenna
102: LTE modem
103: wifi antenna
104: wifi module
105: gateway board
106: power board
107: CPU board
108: memory
109: GPS module
120: MVB communication line
130: device
200: control server

Claims (6)

A multifunction vehicle bus (MVB) communication line 120 of the train, or a device that is connected to an RS485 or RS422 communication line and sniffs train status information;
LTE antenna 101 and LTE modem 102 for LTE communication;
Wi-Fi antenna 103 and Wi-Fi module 104 for Wi-Fi communication; And
The sniffer train status information is transmitted to the control server 200 in real time using the LTE communication, and the train status information not transmitted in real time due to the LTE communication failure is stored in the memory 108, and then the train is connected to the control server ( 200) When the Wi-Fi communication with the state becomes possible, real-time train status information transmission device comprising a CPU board 107 that controls to transmit to the control server 200 using Wi-Fi communication. According to claim 1,
A real-time train status information transmission device in which a rechargeable battery for supplying power can be further configured until all train status information stored in the memory 108 is transmitted to the control server 200. According to claim 1,
Further comprising a GPS module 109 for obtaining the location information of the train,
Train location information obtained by the GPS module 109,
When the train status information is transmitted to the control server 200, the failure status and the diagnostic status information according to the execution of the self-diagnosis function of the train status information real-time transmission device are transmitted together in real time using LTE communication or using Wi-Fi communication. Real-time transmission device for train status information. A real-time transmission apparatus 100 for train status information comprising the configuration of any one of claims 1 to 3; And
It includes a control server 200 for real-time transmission of train status information connected to the train status information real-time transmission device 100 and the LTE network,
An integrated monitoring and control system in which virtual private network (VPN) equipment is further installed to provide the train status information to be transmitted through an encrypted communication channel at the front end of the LTE network and the control server 200. A real-time train status information transmission device (TSMD) 100 installed in the cab switchboard of the train,
A first step of sniffing train status information being transmitted through a multifunction vehicle bus (MVB) communication line 120 or an RS485 or RS422 communication line;
A second step of real-time transmission of the sniffed train status information to the control server 200 by LTE communication at the request of the control server 200; And
When the TSMD (100) and the control server (200) are unable to access due to a failure of the LTE network, train status information that is not transmitted in real time is stored in the memory (108) and then communicates with the control server (200) via Wi-Fi. A real-time method of transmitting train status information, including a third step of transmitting to the control server 200 through Wi-Fi communication in a possible state. The method of claim 5, wherein the third step,
Step 3-1, the TSMD 100 attempts to connect to the control server 200 every predetermined time for the Wi-Fi communication;
Step 3-2 checking whether there is untransmitted train status information when connected to the control server 200 according to the connection attempt;
Step 3-3, when there is untransmitted train status information according to the check result, transmits it to the control server 200 using Wi-Fi communication; And
A method of real-time transmission of train status information including steps 3-4 of deleting information stored in the memory 108 when the transmission is completed.

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