KR102165530B1 - A system for collecting data of railway equipmets with sensor adaptor - Google Patents

Abstract

The present invention relates to a contactless sensor-based data collection apparatus for monitoring the condition of railway electric facilities (a substation, an electric room and a signal room) operated on a site for urban railway services and, more specifically, to a condition data collection apparatus for a railway facility, capable of monitoring site data in real time by placing a sensor adaptor collecting data, which is wirelessly received from contactless sensor devices dispersed in various facilities, in each functional room; maintaining records about facility condition changes; and enabling interconnection with an integrated management system for monitoring railway facilities by transmitting the collected data to a station server.

Description

Railroad facility condition data collection system with sensor adapter {A SYSTEM FOR COLLECTING DATA OF RAILWAY EQUIPMETS WITH SENSOR ADAPTOR}

The present invention relates to a non-contact sensor-based data collection device for monitoring the state of railroad electrical facilities (substations, electrical rooms, signal rooms) operated in the field for urban railroad and railroad operation, and wirelessly from non-contact sensor devices scattered by various facilities. A sensor adapter that collects data received from each function room is placed in each function room to monitor field data in real time, maintain a record of changes in facility status, and transmit the collected data to the station server to monitor the status of railroad facilities. It relates to a railroad facility status data collection system that enables connection with an integrated management system.

As the importance of technology development and monitoring management has emerged in the industrial field, the introduction of condition data management that combines IT technologies such as a real-time monitoring system and a failure prediction technique based on big data is also being implemented in the urban railroad field. In particular, the urban railway field is a very complex convergence of electricity, communication, and mechanical facilities, and there is a concern that if the response is delayed, it may lead to emergency situations and large-scale safety accidents due to insufficient pre-discovery of overloads and rapid temperature rises per facility. The status data of major railway facilities, such as overload, low voltage, temperature, vibration status, smoke detection, etc. for each facility are monitored by sensing their status in real time, and it is of utmost importance to prevent safety accidents through prompt action when demanding attention to changes in status. Do.

Equipment for each functional room necessary for the operation of urban railroad trains is installed and operated at each station, and on-site facility inspection is a system that visually inspects and inspects the site every 1 to 7 days due to physical limitations. In this way, the existing method of managing the condition data of a facility by relying on manual computational input is focused on simple statistical analysis for facility maintenance or condition check, so that the efficiency in the use of reliable data is inferior.

In addition, since most of the subway substations, electrical rooms, and signal rooms are installed in corners of the basement, maintenance and management are not often difficult, and the high voltage is always flowing and is always exposed to the risk of safety accidents. In the conventional method of collecting data by contacting the facility to be monitored, the sensor wiring and the facility wiring are intertwined, and the sensor itself malfunctions in the event of an accident. Sometimes cases occur.

A lot of technologies related to low-power, wireless non-contact sensors have been recently proposed, and Korean Patent Laid-Open Publication No. 10-2011-0134268 (electric railway inspection device using a running train) suggests an idea of monitoring a line based on a non-contact sensor. A sensing data collection technique for integrated management of railroad facilities has not yet been proposed.

In particular, in the existing railway electrical equipment (substation, electric room, signal room), the wiring of the sensor itself is a method of collecting data by contacting a device to monitor a single sensor that measures temperature, humidity, current, vibration, and voltage. It is complicatedly entangled with the wiring of the facility, and when the condition of the facility changes, a problem occurs first in the sensor device attached to monitor it, generating incorrect data or affecting the main facility.

Even this is operated by attaching some sensors to major facilities, but the maintenance of auxiliary facilities such as substations, electrical rooms, signal rooms, etc., rather than management by sensors, periodically visits the site and inspects them through visual or instrumentation. The reality is that it is being operated with an emphasis.

In addition, most of the subway substations, electrical rooms, and signal rooms are installed in corners of the basement, making it difficult to maintain and manage, and they are always exposed to the risk of safety accidents as high-voltage facilities are always flowing.

Existing contact-type sensors collected by attaching a sensor to the facility have difficulty in interoperability between data and it is difficult to maintain the correlation between the collected data depending on the sensor product, so meaningful analysis and data convergence are limited, and facility in terms of utilization There are many cases of death after installation due to insufficient analysis effect of the condition.

Accordingly, a non-contact sensor-based data collection device is required to monitor the status of railroad electrical facilities (substation, electrical room, signal room) operated on-site for urban railroad and railroad operation. There is a need for a system for the collection of railroad facility data, which has a record keeping, integrated management system of railroad facilities, and link function.

1. Republic of Korea Patent Application Publication No. 10-2011-0134268 (electric railway inspection device using a running train)

An object of the present invention is to provide a data sensing and collection system for railroad facilities equipped with a sensor adapter in order to collect data on the state of facilities for each functional room in a more reliable and effective manner by applying non-contact sensor technology.

In order to perform efficient preventive maintenance, the present invention provides a low-power, wireless network-linked real-time data collection using a non-contact sensor, integrity verification and error analysis of the generated equipment status data, real-time collection and recording of sensing information, and real-time to maintainers in case of emergency. IOT-based pre-emergency response and maintenance system that can be reported as (smartphone, mobile terminal, etc.), and the collected data is transmitted to the server in the station in a form suitable for fusion so that it can be linked with the integrated urban railroad management system. It aims to provide a configurable railroad facility status data collection system.

In order to solve the problems of the prior art as described above,

The system for collecting status data of railroad facilities of the present invention includes non-contact sensors for each facility that do not require wiring for monitoring the status of electrical facilities (substations, electrical rooms, signal rooms) operated at urban railroads and railroad operation sites. By collecting data wirelessly received from the non-contact sensors scattered by facilities and monitoring them in real time, maintaining records of changes in facility status, and transmitting the collected data to a station server, an integrated management system for monitoring railroad facilities and It includes a sensor adapter to connect.

By applying the non-contact sensor technology through the status data collection system of railroad facilities equipped with a sensor adapter according to the present invention, it is possible to collect the status data of facilities for each site function room in a more reliable and effective manner, as well as sensing data in a wireless manner. By collecting and monitoring in real time, various information such as power, signals, operation status of communication facilities, overload, low voltage, temperature, etc. in each site function room is used as data for accident prevention and emergency response, securing the safety of facilities, and managing old age. , It can be actively used for lifespan management.

In addition, sensor adapters are placed in each functional room to primarily analyze errors and integrity of data collected from various types of sensor devices, record collected data according to changes in device status in real time, and fused to a station server. By reporting in the form of data, integrated monitoring of railroad facilities is possible, and when abnormal changes occur, a precautionary system can be established by notifying the connected system and maintenance personnel.

In this way, errors in monthly and weekly artificial facility inspection can be prevented in advance through continuous real-time facility status sensing, record maintenance, and measures, and facilities such as obsolescence, performance degradation factors, and future predictions by utilizing accumulated convergence data as big data. It is necessary to secure the availability/reliability/safety of

1 is a configuration diagram of a railroad management system having a sensor adapter according to the present invention
2 is an exemplary view of collecting equipment data with a sensor adapter according to the present invention
3 is a block diagram of a station server system having a sensor adapter according to the present invention
4 is a conceptual diagram of a sensor adapter structure for collecting state data according to the present invention
Figure 5 is a conceptual diagram of the operation principle and function of the sensor adapter according to the present invention
Figure 6 is a conceptual diagram of the principle and function of a reverse server system with a sensor adapter according to the present invention
7 is a conceptual diagram of interaction between a sensor adapter and a reverse server according to the present invention

In the present invention, various modifications may be made and various embodiments may be provided, and specific embodiments are illustrated in the drawings and will be described through detailed description. However, this is not intended to limit the present invention to a specific embodiment, it is to be understood to include all changes, equivalents, or substitutes included in the spirit and scope of the present invention. In describing each drawing, similar reference numerals are used for similar components. In describing the present invention, when it is determined that a detailed description of a related known technology may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

In the present invention, the present invention relates to a data collection system for the state of railroad electrical equipment (substation, electric room, signal room) operated in the field for urban railroad and railroad operation,

As shown in Fig. 1, a sensor adapter for configuring a sensor array 200 by installing low-power, wireless non-contact sensor devices in various facilities scattered by functional rooms, and collecting data wirelessly received from non-contact sensor devices ( 100) is placed in each functional room to monitor field data in real time, maintain a record of changes in equipment status, and transmit the collected data to the station server 300 through the network gateway 400 to integrate for railway facilities. It is characterized by implementing a data collection system for the state of railroad facilities using a sensor adapter that enables connection with the management system.

As shown in Fig. 4, the sensor adapter 100 classifies (101b) the type of sensor, ID, installed position, and stable operation state standard, etc. in the device internal database and puts it in the internal database (101a), Receives the sensed status information regularly and determines the abnormal state of the relevant facility based on the stored reference information (101c), records a log of the abnormal operation when the abnormal state is detected (101d), and if it is normal, the reverse server through the network gateway (101e), and the transmitted sensor-specific data is a periodic repetition event processing module 101 that records the data source and log in the internal database (101f),

An aperiodic event processing module 102 that receives an aperiodic immediate alarm signal from a sensor when an abnormal operation alarm or a change in equipment status is processed through the same process as the periodic event processing module,

It is characterized by consisting of a sensor addition/change event processing module 103 that resets the sensor monitoring screen when addition or change occurs due to the sensor maintenance process and records a log related to sensor change in the internal database. The principle of operation is shown in FIG. 5.

A sensor array 200, characterized in that it is configured so as not to affect main facilities, using the own power source and using a non-contact sensor device that does not require separate power and cable construction in connection with a wireless network is shown in FIG. As I did,

Each sensor converts external energy such as frequency, light, and temperature in its own power generation unit to generate AC for the sensor to operate and to receive power that can operate on its own.

All sensor devices allow data to be transmitted to the sensor adapter through IoT, WiFi-based wireless data transmission method,

The condition of the facility is monitored by configuring the voltage, current for the facility, the temperature of the non-contact facility of the thermal imaging camera method, the temperature in the facility room, the humidity, and the vibration sensor measured by attaching to the installed facility as a non-contact sensor of a low power or separate power source. It is characterized in that the sensor array 200 for each functional room is configured to be able to do so.

2 shows an example of the configuration of the non-contact sensor-based facility room sensor array. Fig. 2 shows that five types of wireless sensors (voltage, current, temperature, vibration, humidity) are installed in one electric device rack in a railway function room (transformation room, signal machine room, electric room, etc.). And in order to analyze the operating environment, it is possible only by comprehensively analyzing the data correlation of temperature, humidity, current, vibration, and voltage conditions.

Each sensor converts external energy such as frequency, light, and temperature in its own power generation unit to generate AC for the sensor to operate and receive power to operate on its own. The voltage that the sensor can operate is between DC 3.6~5.5V.

(2a) is a sensor that measures the temperature and humidity inside the transformer rack. Humidity measurement range is 0%RH ~ 100%RH, power consumption is Sleep <100uA, Tx <25mA, and the power consumption generation method uses frequency to generate power consumption by itself, and the communication cycle is 1 minute. One by one, the measurement data is wirelessly communicated with the Kumho Sensor Adapter in the 927MHz band using the SDR protocol, and the Kumho Sensor Adapter uses the LTE network to transmit the data to the reverse server.

(2b) is a voltage measurement sensor, which uses a method of measuring voltage by connecting it to the + and-terminals, and the operating input voltage of the sensor is DC 3.6 ~ 5.5V, and the voltage measurement range is between DC 1V ~ 30V. The accuracy is within DC 10mV, the power consumption of the sensor is Sleep <3uA, Tx <62mA, and the communication cycle of the sensed data is transmitted once per minute. It communicates wirelessly with the sensor adapter in the 927MHz band using the SDR protocol. The sensor adapter transmits data to the reverse server using the LTE network.

(2c) is a sensor that measures current, the input voltage is operated at DC 3.6 ~ 5.5V, the current measurement range is 1A ~ 15A, the current measurement accuracy is 1mA, and the frequency of the measurement current is D/C or 1Hz ~ 20Hz ( A/C), and the communication method with the sensor adapter is the SDR method, and is configured the same as the voltage sensor. When 36mV/A value is measured when DC 3V power is input, the measured voltage value is converted into current and data is acquired.

(2d) is a device that measures the temperature within a given coordinate using a thermal imaging camera. The thermal imaging camera uses a method of applying general power in consideration of power consumption, and the measurement temperature range is -10℃ ~ 450 The accuracy is ±3°C in °C The mounting method is a bracket attachment type so that the user can define the transmission period of the sensed data, and the communication method is transmitted in the same way as the sensor.

(2e) indicates a contact-type temperature sensor. It is a compact sensor that can be installed in a place where it is difficult to measure with a thermal imaging camera and the sensor is difficult to install, and the temperature is measured by contacting the facility, and the temperature measurement range of the sensor is- It is possible to 200℃ ~ 1350℃, the accuracy is ±0.25℃, and the communication cycle is designed to transmit measurement data once per minute. In addition, the detected temperature data is transmitted to the sensor adapter, the transmission method is SDR (software defined radio) and the frequency band is 927MHz.

(2f) is a vibration detection sensor, and it is designed as an attachment type for easy installation. Input power is DC 4.8V, sensor type is 3-axis, measurement range is ±2g/±4g/±8g/±16g, allowable temperature is -40℃ ~ 85℃, and communication period is with the above sensors. same.

The station server 300 located at the railway and urban railway stations to interface with sensor adapters of each functional room to collect status data and to interwork with an integrated management system for railway facilities,

As shown in Fig. 3, when the safety standards for each facility are not met, an SMS transmission module 301 for transmitting an SMS message to a maintenance person in charge and an operation manager, and recording the history of the transmitted warning message,

Facility status monitoring module 302 for monitoring the status data of facilities for each functional room in the station, generating alarm warning messages, and recording the history of occurrence,

Facility abnormality monitoring module 303 that detects in real time when equipment abnormality occurs and generates an alarm warning notifying equipment abnormality,

A reference management module 304 for managing safety standards for each facility in a standardized manner, and designating a recipient or a receiving group of SMS messages to be responsible for reporting the status of the facility,

It is characterized by being composed of a network interface module 305 for interworking with sensors installed in facilities of each functional room to report and interwork with the SFM system that collects and converges facility status data.

The reverse server 300 system, as shown in FIG. 6, in order to process real-time and irregular events that occur for sensing data collection and interworking with the SFM server,

The railway station server 300 to process real-time or irregular events that occur for interworking with the SFM system,

The facility condition monitoring module 302,

For the purpose of monitoring the status information of a plurality of facilities in a plurality of machine rooms, the step 302a of real-time display of the physical quantity information of the sensor received from the sensor attached to each facility on the monitoring screen, and the physical quantity information changed from the existing physical quantity is a monitoring screen. Including a facility condition monitoring event processing process of the step (302b) of storing as a log in the log file of the application program,

The facility abnormality detection module 303,

When the sensor physical quantity information is received, the management standard (caution section, boundary section, danger section) of the facility physical quantity by the machine room classification and panel classification of the corresponding sensor is inquired from the database previously set and stored by the facility operator (303a),

Comparing and confirming the range of physical quantities of the real-time sensor (303b),

If the physical quantity is out of the normal range according to the management standard, inquiring the mobile phone warning text transmission standard for each management section standard of the sensor physical quantity in the database (303c),

If the warning text is to be transmitted (303d), the text of the sensor error occurrence warning text and the recipient information are inquired from the database, and the SMS-type warning text is transmitted to the person inquired using the wireless modem, and the transmission history is alerted to the database. Step (303e) of insert processing into the text transmission history,

Including a facility abnormality detection event processing process of the step (303g) of displaying a facility abnormality occurrence state on the monitoring screen (303f) and recording the equipment abnormality detection history in a log file of the monitoring application,

The interface module 305,

In the case of transmitting the physical quantity information of each sensor of a plurality of facilities received from the station server to the SFM integrated management system, if the SFM system and the socket are connected, transmitting packet information in the form of a message through the socket (305a), the SFM system of the database SFM system transmission event processing process of recording the transmission processing log in the data transmission log table (305b) and storing the transmission target message type packet as untransmitted data in the untransmitted data storage table of the database if there is no socket connected to the SFM system Including,

The standard management module 304,

When receiving facility failure prediction information, extracting station classification, machine room classification, and equipment classification information from the received failure prediction information and displaying it as failure prediction information of the relevant facility on a monitoring screen (304a),

Inquiring whether the corresponding failure prediction information is an alarm text transmission target or not, inquiring the error prediction warning text transmission standard for each facility in the database (304b),

If the corresponding facility is the target of sending the SMS warning message (304c), the step of inquiring the phrase and recipient information of the failure prediction warning text in the database (304d),

It characterized by including a failure prediction result reception event processing process in step 304e of transmitting an SMS-type warning text to the inquired person using a wireless modem and storing the transmitted history as a warning text transmission history in a database. .

In the interaction of exchanging data between the sensor adapter and the reverse server,

As shown in Figure 7, the reverse server 300 in the interaction of exchanging data with a plurality of sensor adapters 100,

The individual station server 300 is automatically executed by the system when the station server system starts up or is manually executed by the administrator in order to receive information on the physical quantity of the on-site sensor from a plurality of sensor adapters in each functional room in real time through TCP/IP socket communication. Executing to create a socket (7c_1),

Waiting for a communication connection request from the sensor adapter (7c_2),

When a connection request (7a_1) is received from an arbitrary sensor adapter, the Internet address of the sensor adapter 100 that has requested communication connection is searched in the communication connection socket list in the program memory to see if it is currently connected to the reverse server, and if it is already connected. A connection processing process that connects 1:N communication between the reverse server and the sensor adapter through the step (7c_3) of closing the socket allocated for the communication connection, creating a new socket and allocating it, and allocating it to the waiting socket (7c_3). 7c),

Receiving information in the form of a string including field sensor physical quantity information transmitted (7b_2) from a plurality of sockets communicatively connected with the sensor adapter 100 (7d_2),

Step of firstly checking the form error of data by checking the start character field and the end character field of the received data, and the total received size (7d_3),

When an error is detected, the contents of the error are logged in the program log and returned. If no error is detected, the received data classification field, the machine room classification field, and the sensor classification field are checked for each field based on a predefined protocol. Step (7d_4),

In the above step, when a field error is detected, inserting the contents into the error data table in the database and returning without further processing to wait for data reception from the sensor adapter again (7d_5),

On-site sensor data performing a series of receiving processing steps (7d_7) after performing the step (7d_6) of inserting the received information into the database for each machine room or panel when it is determined as normal data without detecting an error It is characterized by including a reception processing process (7d).

In the present invention, in the data collection system for the state of railroad facilities equipped with the sensor adapter as described above, the sensor adapter 100 collects data transmitted from each sensor array, analyzes the integrity of the data, and then collects the fused data. By serving as a relay that transmits to the reverse server 300, the sensing data in the sensor array composed of various products can be managed in a smarter and more efficient form, and for an error of a single sensor, whether the error is temporary or abnormal state change Provides a basis for comprehensively determining whether it means.

100: sensor adapter for collecting status data of railroad facilities
101: cyclic repeating process
102: aperiodic event processing process
103: sensor add/change event processing process
200: Non-contact sensor array for each functional room
300: Station server for interworking with convergence data collection-based SFM system
301: SMS transmitter
302: facility monitoring unit
303: facility abnormality monitoring unit
304: Standards Management Department
305: network interface unit

Claims (6)

In the data collection system for monitoring the condition of the railway electrical equipment operated in the field for the operation of urban railways and railways,
A sensor array 200 composed of a plurality of non-contact sensor devices provided in railway electric facilities scattered for each functional room;
A sensor adapter 100 for collecting field data wirelessly received from the non-contact sensor devices 200;
Including; a station server 300 for collecting the collected equipment status data in the form of fusion data and reporting it to the SFM system,
The sensor adapter 100 monitors the field data in real time, maintains a record of changes in the state of electrical equipment, and transmits the collected data to the station server 300 through the network gateway 400, thereby Make it possible to connect with the integrated management system for monitoring,

The sensor array 200,
Each sensor converts external energy such as frequency, light, and temperature in its own power generation unit to generate AC for the sensor to operate and to receive power that can operate on its own.
All sensor devices allow data to be transmitted to the sensor adapter through IoT, WiFi-based wireless data transmission method,
The condition of the facility is monitored by configuring the voltage, current for the facility, the temperature of the non-contact facility of the thermal imaging camera method, the temperature in the facility room, the humidity, and the vibration sensor measured by attaching to the installed facility as a non-contact sensor of a low power or separate power source. It is characterized by configuring an array of sensors for each functional room so that
Railroad facility status data collection system with sensor adapter
The method of claim 1,
The sensor adapter 100,
Classify (101b) the sensor type, ID, installed location, and stable operation status standard in the device's internal database, put it in the internal database (101a), and receive the sensed status information for the relevant facility regularly based on the stored reference information. The abnormal state of the relevant facility is determined (101c), and a log of the abnormal operation is recorded when the abnormal state is detected (101d), and if it is normal, it is transmitted to the station server through the network gateway (101e), and the transmitted sensor-specific data is internally Periodic repetitive event processing module 101 for recording (101f) the data source and log in the database,
An aperiodic event processing module 102 that receives an aperiodic alarm signal from a sensor or an immediate alarm signal aperiodically in case of a change in equipment status and processes it through the same process as the periodic repetition event processing module 101
Characterized in that it consists of a sensor addition/change event processing module 103 that resets the sensor monitoring screen when addition or change occurs due to the sensor maintenance process and records a log related to sensor change in the internal database,
Railroad facility condition data collection system with sensor adapter.

delete The method of claim 1,
The station server 300 located at the railway and urban railway stations to interface with sensor adapters in each functional room to collect status data and interwork with an integrated management system for monitoring the status of railway facilities,
An SMS transmission module 301 for sending an SMS message to the maintenance and operation manager in charge, and recording the history of the transmitted warning message when the safety standards for each facility are not met,
Facility status monitoring module 302 for monitoring the status data of facilities for each functional room in the station, generating alarm warning messages, and recording the history of occurrence,
Facility abnormality monitoring module 303 that detects in real time when equipment abnormality occurs and generates an alarm warning notifying equipment abnormality,
A reference management module 304 for managing safety standards for each facility in a standardized manner, and designating a recipient or a receiving group of SMS messages to be responsible for reporting the status of the facility,
It is characterized in that it is composed of a network interface module 305 for interlocking with sensors installed in facilities of each functional room to report and interwork with the SFM system that collects and converges status data.
Railroad facility condition data collection system with sensor adapter.
The method of claim 4,
The station server 300 in order to process real-time or irregular events that occur for sensing data collection and interworking with the SFM system,
The facility condition monitoring module 302,
(302a) real-time display of the physical quantity information of the sensor received from the sensor attached to each facility on the monitoring screen for the purpose of monitoring the status information of a plurality of facilities in a plurality of machine rooms; And the physical quantity information changed from the existing physical quantity is a monitoring screen Including the facility status monitoring event processing process of the step (302b) of storing a log in the log file of the application,
The facility abnormality monitoring module 303,
When the sensor physical quantity information is received, inquiring (303a) the management criteria (caution section, boundary section, danger section) of the facility physical quantity for each machine room classification and panel classification of the corresponding sensor in the database previously set and stored by the facility operator;
Comparing and confirming the range of physical quantities of the real-time sensor (303b);
If the physical quantity is out of the normal range according to the management criteria, inquiring the mobile phone warning text transmission criteria for each management section criterion of the sensor physical quantity in the database (303c);
If the warning text is to be transmitted (303d), the text of the sensor error occurrence warning text and the recipient information are inquired from the database, and the SMS-type warning text is transmitted to the person inquired using the wireless modem, and the transmission history is alerted to the database. Inserting into the text transmission history (303e);
Including a facility abnormality detection event processing process of the step (303g) of displaying a facility abnormality occurrence state on the monitoring screen (303f) and recording the equipment abnormality detection history in a log file of the monitoring application,
The interface module 305,
In the case of transmitting the physical quantity information of each sensor of the plurality of facilities received by the station server to the SFM integrated management system, if the SFM system and the socket are connected, transmitting packet information in the form of a message through the socket (305a);
Recording a transmission processing log in the data transmission log table by the SFM system of the database (305b); And an SFM system transmission event processing process for storing a transmission target message type packet as non-transmitted data in a non-transmitted data storage table of the database if there is no socket connected to the SFM system,
The standard management module 304,
When receiving facility failure prediction information, extracting station classification, machine room classification, and equipment classification information from the received failure prediction information and displaying the information on the monitoring screen as failure prediction information (304a);
A step (304b) of inquiring whether the corresponding failure prediction information is an alarm text transmission target or not;
If the corresponding facility is the target of sending the SMS warning message (304c), the step of inquiring the phrase and recipient information of the failure prediction warning text in the database (304d); And
And a process of processing an event of receiving a failure prediction result of (304e) transmitting an SMS-type warning text to the inquired person using a wireless modem and storing the transmission history as a warning text transmission history in a database. doing
Railroad facility condition data collection system with sensor adapter.
The method of claim 4,
The station server 300 in the interaction of exchanging data with a plurality of sensor adapters 100,
The individual station server 300 is automatically executed by the system when the station server system starts up or is manually executed by the administrator in order to receive information on the physical quantity of the on-site sensor from a plurality of sensor adapters in each functional room in real time through TCP/IP socket communication. Executing to create a socket (7c_1);
Waiting for a communication connection request from the sensor adapter (7c_2); And
When a connection request (7a_1) is received from an arbitrary sensor adapter, the Internet address of the sensor adapter 100 that has requested communication connection is searched in the communication connection socket list in the program memory to see if it is currently connected to the reverse server, and if it is already connected. The connection processing process of connecting 1:N communication between the reverse server and the sensor adapter through the step of closing the socket allocated for the communication connection, creating a new socket, allocating it, and allocating it to the waiting socket if it is not connected (7c_3). (7c) and,

Receiving (7d_2) information in the form of a string including field sensor physical quantity information transmitted (7b_2) from a plurality of sockets communicatively connected to the sensor adapter 100;
First checking a form error of data by checking a start character field, an end character field, and a total reception size of the received data (7d_3);
When an error is detected, the contents of the error are logged in the program log and returned. If no error is detected, the received data classification field, the machine room classification field, and the sensor classification field are checked for each field based on a predefined protocol. Step 7d_4;
Inserting the content into the error data table in the database when the field error is detected in the above step, and returning without further processing to wait for data reception from the sensor adapter (7d_5);
If an error is not detected and it is determined as normal data, inserting the received information into a database for each machine room or panel as physical quantity information for each sensor (7d_6); And
Including a field sensor data reception processing process (7d) to perform a series of reception processing steps (7d_7);
Railroad facility condition data collection system with sensor adapter.

Images