CN113852668A - Data interaction method and device for interlocking equipment and axle counting equipment - Google Patents
Data interaction method and device for interlocking equipment and axle counting equipment Download PDFInfo
- Publication number
- CN113852668A CN113852668A CN202111011500.1A CN202111011500A CN113852668A CN 113852668 A CN113852668 A CN 113852668A CN 202111011500 A CN202111011500 A CN 202111011500A CN 113852668 A CN113852668 A CN 113852668A
- Authority
- CN
- China
- Prior art keywords
- message
- axle counting
- target
- command
- counting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003993 interaction Effects 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000004891 communication Methods 0.000 claims abstract description 69
- 230000000737 periodic effect Effects 0.000 claims description 21
- 238000004590 computer program Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 101100171139 Arabidopsis thaliana DRT111 gene Proteins 0.000 description 1
- 101100204296 Arabidopsis thaliana SUA gene Proteins 0.000 description 1
- 101000658739 Homo sapiens Tetraspanin-2 Proteins 0.000 description 1
- 101100148116 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) RSN1 gene Proteins 0.000 description 1
- 101150013977 TSN1 gene Proteins 0.000 description 1
- 102100035873 Tetraspanin-2 Human genes 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention provides a data interaction method and a data interaction device for an interlocking device and an axle counting device, wherein the method comprises the following steps: in each period, acquiring target data, and receiving a first message sent by the interlocking device based on the Ethernet; generating a second message based on the target data and the first message; and sending the second message to the interlocking device based on the Ethernet. The invention provides a data interaction method and a data interaction device for interlocking equipment and axle counting equipment. The control of each axle counting section can be realized through long-distance and large-scale network communication, the cost is reduced, the circuit is simple, and faults are easy to check.
Description
Technical Field
The invention relates to the technical field of railway signals, in particular to a data interaction method and device of an interlocking device and an axle counting device.
Background
In the rail transit system, the axle counting equipment sends the occupation and clearance states of the axle counting sections to the interlocking system and receives an axle counting reset command or a pre-reset command from the interlocking system.
The interlocking and axle counting device usually adopts a relay interface mode, and the axle counting device converts the axle counting section state collected by the axle counting magnetic head into an analog signal to control the suction and falling of the relay; when the interlocking is set to reset or pre-reset the axle counting, information interaction is also carried out by driving the reset relay and the pre-reset relay to act.
In the prior art, each axle counting section needs to be provided with a corresponding axle counting state relay and a reset or pre-reset action relay, the relay is expensive, the construction cost is high, the wiring of a relay circuit is complex, and the fault finding is difficult.
Disclosure of Invention
The invention provides a data interaction method and device of an interlocking device and an axle counting device, which are used for overcoming the defects of small control range and high construction cost of a relay in the prior art, expanding the control range and reducing the construction cost.
The invention provides a data interaction method of an interlocking device and an axle counting device, which comprises the following steps:
in each period, acquiring target data, and receiving a first message sent by the interlocking device based on the Ethernet;
generating a second message based on the target data and the first message;
sending the second message to the interlocking device based on the Ethernet;
the interlocking device and the axle counting device perform data interaction based on a periodic communication mode, the target data comprises an occupation state of a target section and a fault state of the axle counting device, and the first message carries a target command and an identifier of the target command.
According to the data interaction method between the interlocking device and the axle counting device provided by the invention, the generating of the second message based on the target data and the first message comprises the following steps:
acquiring a first freshness based on the first message;
and generating the second message based on the target data and the first message under the condition that the first freshness is greater than a first threshold value.
According to the data interaction method between the interlocking device and the axle counting device provided by the invention, the generating of the second message based on the target data and the first message further comprises:
acquiring the target command in the first message and the identifier of the target command;
under the condition that a target command carried by the first message is not empty, responding to the target command, and generating a second message carrying feedback information of the target command, an identifier of the target command and the target data;
the identification of the target command is used for distinguishing the target commands issued by the same axle counting section for multiple times.
According to the data interaction method between the interlocking device and the axle counting device provided by the present invention, after the acquiring the target command in the first message and the identifier of the target command, the method further comprises:
and generating a second message carrying the target data under the condition that the target command carried by the first message is empty.
According to the data interaction method of the interlocking equipment and the axle counting equipment, the interlocking equipment and the axle counting equipment are communicated by adopting an RSSP-I railway signal safety protocol.
The invention also provides a data interaction method of the interlocking device and the axle counting device, which comprises the following steps:
in each period, sending a first message to the axle counting equipment based on Ethernet;
receiving a second message sent by the axle counting equipment based on the Ethernet;
acquiring target data based on the second message;
the interlocking device and the axle counting device perform data interaction based on a periodic communication mode, the first message carries a target command and an identifier of the target command, the second message is generated by the axle counting device based on the target data and the first message, and the target data comprises an occupation state of a target section and a fault state of the axle counting device.
According to the data interaction method between the interlocking device and the axle counting device provided by the invention, the obtaining of the target data based on the second message comprises the following steps:
acquiring a second freshness based on the second message;
and under the condition that the second freshness is larger than a second threshold value, acquiring the target data from the second message.
According to the data interaction method of the interlocking device and the axle counting device, provided by the invention, under the condition that the target command carried by the first message is not empty, the feedback information of the target command, the identifier of the target command and the target data are obtained based on the second message.
The invention also provides a data interaction device of the interlocking equipment and the axle counting equipment, which comprises the following components:
the first receiving module is used for acquiring target data in the period and receiving a first message sent by the interlocking device based on the Ethernet;
a generating module, configured to generate a second packet based on the target data and the first packet;
a first sending module, configured to send the second packet to the interlock device based on the ethernet;
the interlocking device and the axle counting device perform data interaction based on a periodic communication mode, the target data comprises an occupation state of a target section and a fault state of the axle counting device, and the first message carries a target command and an identifier of the target command.
The invention also provides a data interaction device of the interlocking equipment and the axle counting equipment, which comprises the following components:
the second sending module is used for sending a first message to the axle counting equipment based on the Ethernet in each period;
a second receiving module, configured to receive, based on the ethernet, a second message sent by the axle counting device;
an obtaining module, configured to obtain target data based on the second packet;
the interlocking device and the axle counting device perform data interaction based on a periodic communication mode, the first message carries a target command and an identifier of the target command, the second message is generated by the axle counting device based on the target data and the first message, and the target data comprises an occupation state of a target section and a fault state of the axle counting device.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the steps of the data interaction method of the interlocking device and the axle counting device.
The invention also provides a non-transitory computer-readable storage medium on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the data interaction method of the interlocking device and the axle counting device as described in any one of the above.
The invention provides a data interaction method and a data interaction device for interlocking equipment and axle counting equipment. The control of each axle counting section can be realized through long-distance and large-scale network communication, the cost is reduced, the circuit is simple, and faults are easy to check.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a data interaction method of an interlocking device and an axle counting device provided by the invention;
FIG. 2 is a schematic view of the topological connection of the interlock device and the axle counting device provided by the present invention;
FIG. 3 is a second schematic flow chart of a data interaction method between the interlock device and the axle counting device according to the present invention;
FIG. 4 is one of the schematic structural diagrams of the data interaction device of the interlocking device and the axle counting device provided by the invention;
FIG. 5 is a second schematic structural diagram of a data interaction device of an interlock device and an axle counting device provided by the present invention;
fig. 6 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "comprises" and "comprising" indicate the presence of the described features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Fig. 1 is one of the flow diagrams of the data interaction method between the interlock device and the axle counting device provided by the present invention. As shown in fig. 1, a data interaction method for an interlock device and an axle counting device provided by an embodiment of the present invention includes: step 101, in each period, obtaining target data, and receiving a first message sent by an interlocking device based on an ethernet.
The interlocking device and the axle counting device perform data interaction based on a periodic communication mode, target data comprise an occupation state of a target section and a fault state of the axle counting device, and a first message carries a target command and an identifier of the target command.
It should be noted that the main execution body of the data interaction method between the interlock device and the axle counting device provided in the embodiment of the present invention is the axle counting device, and an application scenario of the data interaction method between the interlock device and the axle counting device provided in the embodiment of the present invention is that the interlock device controls an interaction process of the axle counting device in a certain section.
The axle counting device, also called a microcomputer axle counting device, is one of the devices for monitoring the use state of the track section, and judges whether the track section is occupied or not by monitoring the number of wheel pairs of the railway vehicle passing through between the axle counting points of the track section.
The working principle of the axle counting device is that axle counting points are respectively arranged at the entrance and exit ends of a track section, the number of wheel pairs of the railway vehicles running into the track section and the number of wheel pairs of the railway vehicles outputting the track section are monitored, and then the occupation condition of the section is judged by comparing the number of the running-in wheel pairs and the running-out wheel pairs.
The block section occupation situation is divided into two types, namely a block clear state and a block occupation state.
The section clear state means that a train in a certain track circuit section moves away from the section, and the track circuit of the section is free.
Zone occupation state: the method means that a train in a certain track circuit section occupies the section, so that the track circuit of the section is in an occupied state.
The interlocking device is a device for controlling turnouts, access and signals of a station and realizing an interlocking relationship between the turnouts, the access and the signals.
FIG. 2 is a schematic view of the topological connection of the interlock device and the axle counting device provided by the invention. As shown in fig. 2, the interlock device and the axle counting device adopt a dual-network redundant communication interface mode, so that two systems formed by the interlock device and the axle counting device can be mutually hot-standby. Under the condition of no need of manual intervention, when any system fails, the system can be automatically ensured to continuously provide services.
It should be noted that the interlock device and the axle counting device transmit or receive data in a periodic communication manner.
Specifically, in each cycle, the axle counting device collects target data and receives a first message sent by the interlocking device.
The target data comprises the occupation state of the section and the fault state of the axle counting equipment corresponding to the section.
And judging whether the train occupies the zone at the current moment or not according to the occupation state of the zone.
The fault state of the axle counting equipment comprises a normal state of the axle counting equipment and an abnormal state of the axle counting equipment, and whether the axle counting equipment in charge of the section has a fault or not and whether an axle counting result is available or not are judged according to the fault state of the axle counting equipment corresponding to the section.
Preferably, the axle counting device transmits the occupancy states of all the axle counting sections, the fault state of the axle counting device, and the like to the interlock device on a periodic basis.
The fault state of the axle counting device can also be used for indicating the fault type of the axle counting device, for example:
the fault state of the axle counting device is a number '1', which indicates that the actual zone is in the clear state, but the axle counting device still considers the zone to be in the occupied state.
The fault state of the axle counting device is a number "2", which indicates that the actual zone is in an occupied state, but the axle counting device still considers the zone to be in a clear state.
The first message is a data unit transmitted to the axle counting device through the ethernet at the interlock device, and is mainly used for encapsulating the axle counting command and the identification of the axle counting command sent to the axle counting device by the interlock device.
The target command is an axle counting command which is issued by the interlocking device to control the axle counting devices of the designated section. The axle counting command comprises an axle counting reset command and/or an axle counting pre-reset command.
The command tag corresponding to each axle counting command is used for distinguishing multiple commands issued to the same section by the interlocking device.
The identification of the target command refers to an axle counting command issued by the interlocking device for controlling the axle counting devices of the designated section in the designated time sequence, and is used for indicating the time sequence of all the axle counting commands of the target command in the section. The embodiment of the present invention does not specifically limit the application layer data of the first packet.
Preferably, the application layer data in the first message includes the number of segments in addition to the axle counting command of the segment and the identification of the axle counting command. The first message is used for controlling the axle counting equipment corresponding to each section. The application layer data in the first message is shown in table 1.
Table 1 application layer data table of first packet
Step 102, generating a second message based on the target data and the first message.
Specifically, after receiving the first message through the ethernet, the axle counting device analyzes the first message according to a specific communication protocol, generates corresponding feedback information according to the content obtained by analysis, and combines the feedback information with the target data to obtain a second message. The embodiment of the present invention does not specifically limit the communication protocol used for message parsing.
For example, the first message may be parsed by using RSSP-i railway signal security communication protocol, or the first message may be parsed by using RSSP-II railway signal security communication protocol.
And 103, sending a second message to the interlocking device based on the Ethernet.
Specifically, in the interaction period, after the axle counting device acquires the second message in step 102, the axle counting device sends the second message to the interlock device.
The second message is a data unit transmitted to the interlocking device at the axle counting device through the ethernet, and is mainly used for encapsulating information sent by the axle counting device to the interlocking device.
The embodiment of the present invention does not specifically limit the application layer data of the second packet.
Preferably, the application layer data in the second message includes, in addition to the feedback information of the section axle counting command and the identification of the axle counting command, the number of the sections, the occupied status of the sections, and the fault information of the axle counting device, and the application layer data in the second message is shown in table 2.
Table 2 application layer data table of the second packet
The embodiment of the invention is based on that the interlocking equipment and the axle counting equipment adopt the Ethernet and follow the interface of a safe communication protocol to send a second message to the interlocking equipment by acquiring the target data and the first message in each period in a periodic communication mode. The control of each axle counting section can be realized through long-distance and large-scale network communication, the cost is reduced, the circuit is simple, and faults are easy to check.
On the basis of any of the above embodiments, generating a second packet based on the target data and the first packet includes: based on the first message, a first freshness is obtained. Specifically, it should be noted that the first freshness corresponds to the first packet, and is used to determine whether data carried by the first packet is valid.
Specifically, in step 102, in the process of parsing the first packet, the freshness of the first packet is calculated according to the sender serial number, the receiver serial number, and the last sender serial number of the first packet. The embodiment of the present invention does not specifically limit the structure of the first packet.
Preferably, the structure of the first message is as shown in table 3.
Table 3 first message structure table
The calculation formula of the first freshness may be expressed as:
F1＝(Cycle Count1–RSN1)*PR1–(TSN 1–LTS1)*PT1
wherein, F1 is the first freshness, Cycle Count1 is the current processing Cycle Count when the receiver of the first message receives the first message, RSN1 is the message sequence number of the opposite party, PR1 is the processing Cycle of the receiver of the first message, TSN1 is the local sequence number, LTS1 is the local sequence number of the last message received, and PT1 is the processing Cycle of the sender of the first message.
It will be appreciated that the sequence number in the first message structure has a valid value of 1- (2)31-1). The sender must ensure that when two packets are generated, the multiplication of the difference value of the 'message sequence number of the local' field in the two packets and the 'communication period' is equal to the time interval for generating the two packets of messages.
When the opposite side message is not received or the communication interruption condition is judged, 0xFFFFFFFF is filled in both the opposite side message sequence number and the local side sequence number when the last message is received.
The Computer Based Interlocking (CBI) system shall check the validity of the received application message, and if the check fails, it is determined that the application message of the other party is not received in the current period (i.e. the packet message is discarded), and records the alarm information.
The following describes a specific examination method with reference to a specific embodiment.
The checking for consistency of message content includes checking for validity of fields of information, checking for validity of field combinations, and checking for integrity of information that should be contained in a Generic Array Logic (GAL) packet message.
And generating a second message based on the target data and the first message under the condition that the first freshness is greater than the first threshold value.
It should be noted that, when the interlock device and the axle counting device communicate, both the interlocking device and the axle counting device should supervise the received message according to the freshness corresponding to the message by a preset rule.
Specifically, the axle counting device is used as a receiver of the first message, and the first freshness is checked according to a preset threshold of the first freshness.
If the first freshness received by the axle counting device is less than the maximum tolerable freshness of the axle counting device to the interlocking device, the checking result of the first freshness is considered to be qualified, that is, the axle counting command transmitted by the first message and the identifier of the axle counting command are effective information, and the axle counting device can analyze the application layer data (that is, the target command and the identifier of the target command) of the first message from the first message.
If the first freshness received by the axle counting device is greater than or equal to the maximum tolerable freshness of the axle counting device to the interlocking device, the checking result of the first freshness is considered to be unqualified, that is, the axle counting command transmitted by the first message and the identification of the axle counting command are invalid information, and the axle counting device does not need to analyze the first message.
In the embodiment of the invention, the axle counting equipment performs freshness calculation on the acquired first message based on an interface mode that the interlocking equipment and the axle counting equipment adopt Ethernet and follow a safety communication protocol, and monitors the analysis of the first message according to the calculated first freshness. The system can realize effective control on each axle counting section through long-distance and large-scale network communication, reduces cost, has simple circuit and is easy to troubleshoot faults.
On the basis of any of the above embodiments, generating a second packet based on the target data and the first packet, further includes: and acquiring the target command in the first message and the identification of the target command.
The identification of the target command is used for distinguishing multiple target commands issued by the same axle counting section.
Specifically, in step 102, the axle counting device parses the first packet received by the ethernet, and obtains a target command specified in the application layer data of the first packet and an identifier corresponding to the target command.
And the identification of the target command is used for appointing the interlocking device to send the command to the axle counting device at the appointed time sequence.
Preferably, in step 102, when the first freshness corresponding to the first message meets the preset requirement, the axle counting device analyzes the first message received by the ethernet to obtain a target command specified in the application layer data of the first message and an identifier corresponding to the target command.
And under the condition that the target command carried by the first message is not empty, responding to the target command, and generating a second message carrying the feedback information of the target command, the identification of the target command and the target data.
Specifically, under the condition that the target command analyzed by the axis counting device is not empty, the control operation carried in the target command is executed based on the target command, and a second message is sent to the interlocking device after the control operation is executed.
The second message is a data unit transmitted to the interlocking device at the axle counting device through the ethernet, and is mainly used for encapsulating feedback information of an axle counting command sent to the interlocking device by the axle counting device, an identifier of the axle counting command, and target data.
The feedback information of the target command refers to feedback information used for responding to the axle counting command of the interlocking device by the axle counting device in the designated zone based on whether the control operation carried by the target command is executed or not. The feedback information of the axle counting command comprises feedback information of the axle counting reset command and/or feedback information of the axle counting pre-reset command.
And identification of a target command, wherein the axle counting device for a specified section responds to the axle counting command with specified time sequence so as to distinguish the command feedback.
The embodiment of the invention is based on the fact that the interlocking device and the axle counting device adopt the Ethernet and follow the interface mode of the safety communication protocol, under the condition that the effective command exists in the axle counting command received from the interlocking device through the first message, the axle counting device executes the axle counting command and then sends a second message for indicating the section state and responding to the execution command to the interlocking device. The control of each axle counting section can be realized through long-distance and large-scale network communication, the cost is reduced, the circuit is simple, and faults are easy to check.
On the basis of any of the above embodiments, after acquiring the target command in the first message and the identification of the target command, the method further includes: and generating a second message carrying target data under the condition that the target command carried by the first message is empty.
Specifically, the second message is directly sent to the interlock device when the target command analyzed by the axis counting device is empty.
The second message is a data unit transmitted to the interlock device through the ethernet at the axle counting device, and is mainly used for encapsulating target data collected by the axle counting device in the administration section.
The embodiment of the invention is based on the fact that the interlocking device and the axle counting device adopt the Ethernet and follow the interface mode of the safety communication protocol, the condition that no effective command exists in the axle counting command received from the interlocking device is obtained through the first message, and the axle counting device sends the second message for indicating the section state to the interlocking device after executing the axle counting command. The monitoring of the state of each axle counting section can be realized through long-distance and large-scale network communication, the cost is reduced, the circuit is simple, and the faults are easy to check.
On the basis of any one of the above embodiments, the interlocking device and the axle counting device communicate by adopting RSSP-I railway signal safety protocol.
Specifically, for interactive messages between the interlocking equipment and the axle counting equipment, the RSSP-I railway signal safety protocol is adopted to package or analyze the messages.
RSSP-I railway signal safety communication protocol, which is designed for solving the data communication time sequence among equipment, solves the high requirements of the data timeliness, the data integrity, the data packet sequence, the data accuracy and the like of the communication among the equipment,
it can be understood that the interlock device and the axle counting device use a Transmission Control Protocol (TCP) or a User Datagram Protocol (UDP) mode to perform communication link of the network layer.
The embodiment of the invention adopts the Ethernet based on the interlocking device and the axle counting device and follows the RSSP-I railway signal safety interface mode, can realize timely, effective and complete acquisition of accurate transmission data through long-distance and large-scale network communication, reduces the cost, has simple circuit and is easy to troubleshoot faults.
Fig. 3 is a second schematic flow chart of the data interaction method between the interlock device and the axle counting device provided by the present invention. As shown in fig. 3, a data interaction method for an interlock device and an axle counting device provided by an embodiment of the present invention includes: step 301, in each period, sending a first message to the axle counting device based on the ethernet.
The interlocking device and the axle counting device perform data interaction based on a periodic communication mode, and the first message carries a target command and an identifier of the target command.
It should be noted that the main execution body of the data interaction method between the interlock device and the axle counting device provided in the embodiment of the present invention is the interlock device, and an application scenario of the data interaction method between the interlock device and the axle counting device provided in the embodiment of the present invention is that the interlock device controls an interaction process of an axle counting device in a certain section.
It should be noted that the interlock device and the axle counting device transmit or receive data in a periodic communication manner. Specifically, in each cycle, the interlock device sends a first message to the axle counting device.
The first message is a data unit transmitted to the axle counting device through the ethernet at the interlock device, and is mainly used for encapsulating the axle counting command and the identification of the axle counting command sent to the axle counting device by the interlock device.
The target command is an axle counting command which is issued by the interlocking device to control the axle counting devices of the designated section. The axle counting command comprises an axle counting reset command and/or an axle counting pre-reset command.
The command tag corresponding to each axle counting command is used for distinguishing multiple commands issued to the same section by the interlocking device.
The identification of the target command refers to an axle counting command issued by the interlocking device for controlling the axle counting devices of the designated section in the designated time sequence, and is used for indicating the time sequence of all the axle counting commands of the target command in the section. The embodiment of the present invention does not specifically limit the application layer data of the first packet.
Preferably, the application layer data in the first message further includes, in addition to the section axle counting command and the identification of the axle counting command, the number of the sections, which is used to control the axle counting device corresponding to each section, and the application layer data in the first message is as shown in table 1 above.
And the second message is generated by the axle counting equipment based on the target data and the first message.
It should be noted that, before step 302, after receiving and analyzing the first message, the axle counting device encapsulates all data for responding to the first message into a second message, and sends the second message to the interlock device.
Specifically, the interlocking device receives a second message from the axle counting device.
The second message is a data unit transmitted to the interlock device at the axle counting device through the ethernet, and is mainly used for encapsulating all information sent by the axle counting device to the interlock device.
Wherein, the second message at least comprises the target information collected by the axle counting equipment in the jurisdiction area,
optionally, the second packet includes only the target data.
Optionally, the second message includes target information collected by the axle counting device, and also includes feedback information of the target command responding to the target command in the first message and an identifier of the target command.
The feedback information of the target command refers to feedback information of the axle counting command used for responding to the interlocking device based on whether the control operation carried by the target command is executed or not by the axle counting device in the designated zone, and the feedback information of the axle counting command comprises the feedback information of the axle counting reset command and the feedback information of the axle counting pre-reset command.
And identification of a target command, wherein the axle counting device for a specified section responds to the axle counting command with specified time sequence so as to distinguish the command feedback. The embodiment of the present invention does not specifically limit the application layer data of the second packet.
Preferably, the application layer data in the second message may include information such as the number of segments in addition to the target data of the segments, the feedback information of the axle counting command, and the identifier of the axle counting command, and the application layer data in the second message is as shown in table 2 above.
And step 303, acquiring target data based on the second message.
The target data comprises the occupation state of the target section and the fault state of the axle counting device.
Specifically, after receiving the second packet through the ethernet, the interlock device parses the second packet according to a specific communication protocol, and obtains target data specified in the application layer data. The embodiment of the present invention does not specifically limit the communication protocol used for message parsing.
For example, the second message is parsed using RSSP-i railway signal secure communication protocol.
The target data comprises the occupation state of the section and the fault state of the axle counting equipment corresponding to the section. And judging whether the train occupies the zone at the current moment or not according to the occupation state of the zone.
The fault state of the axle counting equipment comprises a normal state of the axle counting equipment and an abnormal state of the axle counting equipment, and whether the axle counting equipment in charge of the section has a fault or not and whether an axle counting result is available or not are judged according to the fault state of the axle counting equipment corresponding to the section.
Optionally, after receiving the second packet through the ethernet, the interlock device parses the second packet according to a specific communication protocol, and obtains the target data specified in the application layer data, the feedback information of the target command, and the identifier of the target command.
Preferably, the axle counting device transmits the occupancy states of all the axle counting sections, the fault state of the axle counting device, and the like to the interlock device on a periodic basis. Wherein the fault state of the axle counting device can also be used for indicating the fault type of the axle counting device
The embodiment of the invention is based on that the interlocking device and the axle counting device adopt Ethernet and follow the interface of a safe communication protocol to periodically communicate, the axle counting device can execute corresponding operation by sending a first message to the axle counting device in each period, and then the execution condition of the axle counting device is known by a second message for response. The control of each axle counting section can be realized through long-distance and large-scale network communication, the cost is reduced, the circuit is simple, and faults are easy to check.
On the basis of any of the above embodiments, acquiring target data based on the second packet includes: and acquiring a second freshness based on the second message.
It should be noted that the second freshness corresponds to the second packet, and is used to determine whether the data carried in the second packet is valid.
Specifically, in step 302, during the parsing process of the second packet, the freshness of the second packet is calculated according to the serial number of the sender, the serial number of the receiver, and the serial number of the sender of the last interaction of the second packet. The embodiment of the present invention does not specifically limit the structure of the second packet.
Preferably, the structure of the second message is as shown in table 4.
Table 4 second message structure table
The calculation formula for the second freshness can be expressed as:
F2＝(Cycle Count2–RSN2)*PR2–(TSN 2–LTS2)*PT2
wherein, F2 is the second freshness, Cycle Count2 is the current processing Cycle Count when the receiver receives the second message, RSN2 is the opposite message sequence number, PR2 is the receiver processing Cycle, TSN2 is the local sequence number, LTS2 is the local sequence number when the last message is received, and PT2 is the processing Cycle of the sender.
It will be appreciated that the sequence number in the second message structure has a valid value of 1- (2)31-1). The sender must ensure that when two packets are generated, the multiplication of the difference value of the 'message sequence number of the local' field in the two packets and the 'communication period' is equal to the time interval for generating the two packets of messages.
When the opposite side message is not received or the communication interruption condition is judged, 0xFFFFFFFF is filled in both the opposite side message sequence number and the local side sequence number when the last message is received.
The Computer Based Interlocking (CBI) system shall check the validity of the received application message, and if the check fails, it is determined that the application message of the other party is not received in the current period (i.e. the packet message is discarded), and records the alarm information.
And under the condition that the second freshness is larger than a second threshold value, acquiring the target data from the second message.
Specifically, the interlocking device is used as a receiver of the second message, and the second freshness is checked according to a preset threshold value of the second freshness.
If the second freshness received by the interlocking device is smaller than the maximum tolerable freshness of the interlocking device to the axle counting device, the checking result of the second freshness is considered to be qualified, that is, the axle counting command transmitted by the second message, the identifier of the axle counting command, the occupation state of the segment and the fault information of the axle counting device of the corresponding segment are all valid information, and the axle counting device can analyze the application layer data of the second message from the second message.
If the second freshness received by the interlocking device is greater than or equal to the maximum tolerable freshness of the interlocking device to the axle counting device, the checking result of the second freshness is considered to be unqualified, that is, the axle counting command transmitted by the second message, the identification of the axle counting command, the occupied state of the section and the fault information of the axle counting device in the corresponding section have invalid information, and the axle counting device does not need to analyze the second message.
In the embodiment of the invention, based on the interface mode that the interlocking device and the axle counting device adopt the Ethernet and follow the safety communication protocol, the interlocking device calculates the freshness of the obtained second message, and supervises the analysis of the second message according to the calculated second freshness. The real feedback of each axle counting section can be obtained through long-distance and large-scale network communication, the cost is reduced, the circuit is simple, and faults are easy to check.
On the basis of any of the above embodiments, under the condition that the target command carried in the first message is not empty, the feedback information of the target command, the identifier of the target command, and the target data are acquired based on the second message.
Specifically, when the target command in the first message sent by the interlock device to the axle counting device is not empty, after receiving the second message through the ethernet, the second message is analyzed according to a specific communication protocol, and the feedback information of the target command specified in the application layer data and the identifier corresponding to the target command are obtained.
Preferably, when the target command in the first message sent by the interlock device to the axle counting device is not null, after the second message is received through the ethernet, and when it is verified that the second freshness of the second message meets the preset requirement, the second message is analyzed according to the specific communication protocol, so as to obtain the feedback information of the target command specified in the application layer data and the identifier corresponding to the target command.
It can be understood that, in the case that the target command in the first message sent by the interlock device to the axle counting device is not null, that is, the interlock device does not indicate a command to the axle counting device, the second message at this time only includes the target data collected by the axle counting device. And analyzing the second message according to a specific communication protocol to acquire the specified target data in the application layer data. .
The embodiment of the invention is based on the interface mode that the interlocking device and the axle counting device adopt the Ethernet and follow the safe communication protocol, the axle counting device executes the axle counting command by sending the first message with the effective command to the axle counting device, and then the execution condition of the axle counting device is known by the second message for response. The control of each axle counting section can be realized through long-distance and large-scale network communication, the cost is reduced, the circuit is simple, and faults are easy to check.
The embodiment of the invention is based on the fact that the interlocking device and the axle counting device adopt the Ethernet and follow the interface mode of the safe communication protocol, the condition that no effective command exists in the axle counting command received from the interlocking device is obtained through the first message, and the interlocking device obtains the feedback information of the target command, the identification of the target command and the target data according to the received second message. The monitoring of the state of each axle counting section can be realized through long-distance and large-scale network communication, the cost is reduced, the circuit is simple, and the faults are easy to check.
Fig. 4 is one of the structural schematic diagrams of the data interaction device of the axle counting device and the interlocking device provided by the invention. As shown in fig. 4, a data interaction apparatus for an axle counting device and an interlocking device according to an embodiment of the present invention includes: a first receiving module 410, a generating module 420 and a first transmitting module 430, wherein:
the first receiving module 410 is configured to send a first message to the axle counting device based on the ethernet in this period.
The generating module 420 is configured to receive, based on the ethernet, a second message sent by the axle counting device.
And a first sending module 430, configured to obtain the target data based on the second packet.
The interlocking device and the axle counting device perform data interaction based on a periodic communication mode, target data comprise an occupation state of a target section and a fault state of the axle counting device, and a first message carries a target command and an identifier of the target command.
Specifically, the first receiving module 410, the generating module 420, and the first transmitting module 430 are electrically connected in sequence.
The first receiving module 410 collects the target data and receives the first message sent by the interlock device in each cycle.
After receiving the first message through the ethernet, the generating module 420 parses the first message according to a specific communication protocol, generates corresponding feedback information according to the content obtained by parsing, and combines the feedback information with the target data to obtain a second message.
The first sending module 430 sends the second message to the interlock device after acquiring the second message in the interaction period. .
Optionally, the generating module 420 comprises a first freshness unit and a generating unit, wherein:
and the first freshness unit is used for acquiring the first freshness based on the first message.
And the first generating unit is used for generating a second message based on the target data and the first message under the condition that the first freshness is greater than the first threshold value.
Optionally, the generating module 420 includes a first obtaining unit and a second generating unit, wherein:
and the first acquisition unit is used for acquiring the target command in the first message and the identification of the target command.
And the second generating unit is used for responding to the target command and generating a second message carrying the feedback information of the target command, the identification of the target command and the target data under the condition that the target command carried by the first message is not empty.
The identification of the target command is used for distinguishing multiple target commands issued by the same axle counting section.
Optionally, the second generating unit is further configured to generate a second packet carrying target data when the target command carried in the first packet is empty.
Optionally, the interlock device and the axle counting device communicate with each other using RSSP-i railway signal safety protocol.
Preferably, the data interaction device of the axle counting device and the interlocking device is the axle counting device.
The data interaction device of the interlocking device and the axle counting device provided by the embodiment of the invention is used for executing the data interaction method based on the interlocking device and the axle counting device, the implementation mode of the data interaction device is consistent with that of the data interaction method of the interlocking device and the axle counting device provided by the invention, and the same beneficial effects can be achieved, and the description is omitted here.
The embodiment of the invention is based on that the interlocking equipment and the axle counting equipment adopt the Ethernet and follow the interface of a safe communication protocol to send a second message to the interlocking equipment by acquiring the target data and the first message in each period in a periodic communication mode. The control of each axle counting section can be realized through long-distance and large-scale network communication, the cost is reduced, the circuit is simple, and faults are easy to check.
Fig. 5 is a second schematic structural diagram of a data interaction device of an interlock device and an axle counting device provided by the invention. As shown in fig. 5, a data interaction apparatus for an interlock device and an axle counting device according to an embodiment of the present invention includes: a second sending module 510, a second receiving module 520, and an obtaining module 530, wherein:
the second sending module 510 is configured to send, in each period, a first message to the axle counting device based on the ethernet.
A second receiving module 520, configured to receive, based on the ethernet, a second message sent by the axle counting device.
An obtaining module 530, configured to obtain the target data based on the second packet.
The interlocking device and the axle counting device perform data interaction based on a periodic communication mode, a first message carries a target command and an identifier of the target command, a second message is generated by the axle counting device based on target data and the first message, and the target data comprises an occupation state of a target section and a fault state of the axle counting device.
Specifically, the second transmitting module 510, the second receiving module 520, and the obtaining module 530 are electrically connected in sequence.
The second sending module 510 sends the first message to the axle counting device in each cycle.
The second receiving module 520 receives a second message from the axle counting device.
After receiving the second packet through the ethernet, the obtaining module 530 parses the second packet according to a specific communication protocol, and obtains the target data specified in the application layer data.
Optionally, the acquisition module 530 includes a second freshness unit and a first acquisition unit, wherein:
and the second freshness unit is used for acquiring second freshness based on the second message.
And the first obtaining unit is used for obtaining the target data from the second message under the condition that the second freshness is greater than a second threshold value.
Optionally, the obtaining module 530 includes a second obtaining unit, wherein:
and the second obtaining unit is used for obtaining the feedback information of the target command, the identifier of the target command and the target data based on the second message under the condition that the target command carried by the first message is not empty.
Preferably, the data interaction device of the axle counting device and the interlocking device is the interlocking device.
The data interaction device of the interlocking device and the axle counting device provided by the embodiment of the invention is used for executing the data interaction method based on the interlocking device and the axle counting device, the implementation mode of the data interaction device is consistent with that of the data interaction method of the interlocking device and the axle counting device provided by the invention, and the same beneficial effects can be achieved, and the description is omitted here.
The embodiment of the invention is based on that the interlocking device and the axle counting device adopt Ethernet and follow the interface of a safe communication protocol to periodically communicate, the axle counting device can execute corresponding operation by sending a first message to the axle counting device in each period, and then the execution condition of the axle counting device is known by a second message for response. The control of each axle counting section can be realized through long-distance and large-scale network communication, the cost is reduced, the circuit is simple, and faults are easy to check.
Fig. 6 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 6: a processor (processor)610, a communication interface (communication interface)620, a memory (memory)630 and a communication bus 640, wherein the processor 610, the communication interface 620 and the memory 630 are communicated with each other via the communication bus 640. The processor 610 may invoke logic instructions in the memory 630 to perform a method of data interaction of the interlock device with the axle counting device, the method comprising: in each period, acquiring target data, and receiving a first message sent by interlocking equipment based on the Ethernet; generating a second message based on the target data and the first message; sending a second message to the interlocking device based on the Ethernet; the interlocking device and the axle counting device perform data interaction based on a periodic communication mode, target data comprise an occupation state of a target section and a fault state of the axle counting device, and a first message carries a target command and an identifier of the target command.
In addition, the logic instructions in the memory 630 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
In another aspect, the present invention also provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, which when executed by a computer, enable the computer to perform the method for data interaction between an interlock device and an axle counting device provided by the above methods, the method comprising: in each period, acquiring target data, and receiving a first message sent by interlocking equipment based on the Ethernet; generating a second message based on the target data and the first message; sending a second message to the interlocking device based on the Ethernet; the interlocking device and the axle counting device perform data interaction based on a periodic communication mode, target data comprise an occupation state of a target section and a fault state of the axle counting device, and a first message carries a target command and an identifier of the target command.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to execute the data interaction method of the interlock device and the axle counting device provided in the above, the method comprising: in each period, acquiring target data, and receiving a first message sent by interlocking equipment based on the Ethernet; generating a second message based on the target data and the first message; sending a second message to the interlocking device based on the Ethernet; the interlocking device and the axle counting device perform data interaction based on a periodic communication mode, target data comprise an occupation state of a target section and a fault state of the axle counting device, and a first message carries a target command and an identifier of the target command.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A data interaction method of an interlocking device and an axle counting device is characterized by comprising the following steps:
in each period, acquiring target data, and receiving a first message sent by the interlocking device based on the Ethernet;
generating a second message based on the target data and the first message;
sending the second message to the interlocking device based on the Ethernet;
the interlocking device and the axle counting device perform data interaction based on a periodic communication mode, the target data comprises an occupation state of a target section and a fault state of the axle counting device, and the first message carries a target command and an identifier of the target command.
2. The data interaction method of the interlocking device and the axle counting device according to claim 1, wherein the generating a second message based on the target data and the first message comprises:
acquiring a first freshness based on the first message;
and generating the second message based on the target data and the first message under the condition that the first freshness is greater than a first threshold value.
3. The data interaction method of the interlocking device and the axle counting device according to any one of claims 1 or 2, wherein the generating a second message based on the target data and the first message further comprises:
acquiring the target command in the first message and the identifier of the target command;
under the condition that a target command carried by the first message is not empty, responding to the target command, and generating a second message carrying feedback information of the target command, an identifier of the target command and the target data;
the identification of the target command is used for distinguishing the target commands issued by the same axle counting section for multiple times.
4. The data interaction method of the interlock device and the axle counting device according to claim 3, further comprising, after the obtaining the target command and the identification of the target command in the first message:
and generating a second message carrying the target data under the condition that the target command carried by the first message is empty.
5. The data interaction method of the interlock device and the axle counting device according to claim 1, wherein the interlock device and the axle counting device communicate with each other by using RSSP-I railway signal safety protocol.
6. A data interaction method of an interlocking device and an axle counting device is characterized by comprising the following steps:
in each period, sending a first message to the axle counting equipment based on Ethernet;
receiving a second message sent by the axle counting equipment based on the Ethernet;
acquiring target data based on the second message;
the interlocking device and the axle counting device perform data interaction based on a periodic communication mode, the first message carries a target command and an identifier of the target command, the second message is generated by the axle counting device based on the target data and the first message, and the target data comprises an occupation state of a target section and a fault state of the axle counting device.
7. The data interaction method of the interlock device and the axle counting device according to claim 6, wherein the obtaining target data based on the second message comprises:
acquiring a second freshness based on the second message;
and under the condition that the second freshness is larger than a second threshold value, acquiring the target data from the second message.
8. The data interaction method of the interlocking device and the axle counting device according to any one of claims 6 or 7, wherein when the target command carried in the first message is not empty, the feedback information of the target command, the identifier of the target command and the target data are obtained based on the second message.
9. A data interaction device of an interlocking device and an axle counting device is characterized by comprising:
the first receiving module is used for acquiring target data in the period and receiving a first message sent by the interlocking device based on the Ethernet;
a generating module, configured to generate a second packet based on the target data and the first packet;
a first sending module, configured to send the second packet to the interlock device based on the ethernet;
the interlocking device and the axle counting device perform data interaction based on a periodic communication mode, the target data comprises an occupation state of a target section and a fault state of the axle counting device, and the first message carries a target command and an identifier of the target command.
10. A data interaction device of an interlocking device and an axle counting device is characterized by comprising:
the second sending module is used for sending a first message to the axle counting equipment based on the Ethernet in each period;
a second receiving module, configured to receive, based on the ethernet, a second message sent by the axle counting device;
an obtaining module, configured to obtain target data based on the second packet;
the interlocking device and the axle counting device perform data interaction based on a periodic communication mode, the first message carries a target command and an identifier of the target command, the second message is generated by the axle counting device based on the target data and the first message, and the target data comprises an occupation state of a target section and a fault state of the axle counting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111011500.1A CN113852668A (en) | 2021-08-31 | 2021-08-31 | Data interaction method and device for interlocking equipment and axle counting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111011500.1A CN113852668A (en) | 2021-08-31 | 2021-08-31 | Data interaction method and device for interlocking equipment and axle counting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113852668A true CN113852668A (en) | 2021-12-28 |
Family
ID=78976728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111011500.1A Pending CN113852668A (en) | 2021-08-31 | 2021-08-31 | Data interaction method and device for interlocking equipment and axle counting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113852668A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231728A (en) * | 2011-05-16 | 2011-11-02 | 铁道部运输局 | Train control data communication method, equipment and system |
| CN107953899A (en) * | 2017-12-21 | 2018-04-24 | 通号（北京）轨道工业集团有限公司 | A kind of meter shaft electrical interface devices |
| CN111806514A (en) * | 2020-07-23 | 2020-10-23 | 四川瑞云信通科技有限公司 | Route type axle counting integration system and method |
| CN111856174A (en) * | 2019-04-28 | 2020-10-30 | 比亚迪股份有限公司 | Full electronic interlock test system and method |
-
2021
- 2021-08-31 CN CN202111011500.1A patent/CN113852668A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231728A (en) * | 2011-05-16 | 2011-11-02 | 铁道部运输局 | Train control data communication method, equipment and system |
| CN107953899A (en) * | 2017-12-21 | 2018-04-24 | 通号（北京）轨道工业集团有限公司 | A kind of meter shaft electrical interface devices |
| CN111856174A (en) * | 2019-04-28 | 2020-10-30 | 比亚迪股份有限公司 | Full electronic interlock test system and method |
| CN111806514A (en) * | 2020-07-23 | 2020-10-23 | 四川瑞云信通科技有限公司 | Route type axle counting integration system and method |
Non-Patent Citations (1)
| Title |
|---|
| 齐志华;: "城市有轨电车信号控制系统的设计", 城市轨道交通研究, no. 07, 10 July 2020 (2020-07-10) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105700509B (en) | Car-mounted terminal detection method and device based on CAN | |
| CN110099398B (en) | Network failure information collection method, network system, storage medium and network device | |
| EP3375691A1 (en) | Monitoring system for a railway infrastructure | |
| CN106411648A (en) | Data monitoring method and data monitoring server of urban rail transit signal system | |
| CN105007197A (en) | Method and device for monitoring communication state of MVB bus | |
| CN108599989B (en) | MVB bus detection method and device | |
| CN113590468A (en) | Automatic testing method and device for ATS interface of automatic train monitoring system | |
| CN111077871B (en) | Railway signal system fault intelligent analysis platform | |
| CN112383457B (en) | Safety slave station system based on CANopen protocol | |
| CN102123005B (en) | Online monitoring method for safety data communication process of train control system | |
| CN106707101A (en) | Distribution network operating state monitoring device with four-remote function | |
| EP4183661A1 (en) | Security information supervision apparatus applied to high-speed rail signal system | |
| CN110597226A (en) | Abnormity early warning method and device for vehicle-mounted Ethernet | |
| CN104504773A (en) | Transmission method and device for locomotive running state data | |
| CN113852668A (en) | Data interaction method and device for interlocking equipment and axle counting equipment | |
| CN103825793B (en) | A kind of Internet of Things data message discharge device and its method | |
| CN104219504A (en) | Fault detecting method of subway video monitoring system | |
| CN114189834B (en) | Rail transit vehicle-ground communication supervision system and method | |
| CN110913418A (en) | Method and system for early warning and positioning of rail transit communication fault | |
| CN113807687B (en) | Scheduling centralized simulation system, interface device and wireless block control simulation system | |
| CN114104037B (en) | Vehicle-mounted signal equipment redundancy equipment, method, device and medium | |
| CN116156537A (en) | Vehicle-ground communication data analysis method and device | |
| CN111169510A (en) | Train communication system | |
| CN113562035B (en) | Train position report jump protection method, device, electronic equipment and storage medium | |
| CN115801925A (en) | Data processing method and device based on automatic train monitoring ATS system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |