KR100651194B1 - A aid-measurement of electrical devices in electrical railway - Google Patents

Abstract

The present invention relates to an electric equipment state auxiliary measurement system of an electric railway vehicle, and more particularly, comprising: a speed sensor for generating a pulse signal corresponding to the rotational speed of a wheel; A frequency / voltage converter converting the speed detection pulse into a voltage; A first A / D converter converting the analog speed detection signal into a digital signal; A vehicle speed detector for detecting a current traveling speed of the railway vehicle; A counter for counting speed detection pulses; A position information detector for calculating a travel distance compared to the number of pulses and detecting a position thereof; A vehicle-mounted computer that collects and stores various electronic equipment and state information of the propulsion, braking, and auxiliary power in normal times; An RS485 communication interface for transmitting various state information stored in the vehicle-mounted computer to a measurement host computer as necessary; An electrical equipment voltage / current / temperature detection sensor for detecting voltage, current, and temperature for each of the various electrical appliances installed in each vehicle; A second A / D conversion unit converting the electrical component voltage, current and temperature values into a digital signal; It receives and stores various status information in real time from the vehicle speed detection unit, the position information detection unit, the second A / D converter, and the vehicle-mounted computer. In addition, it consists of a measurement host computer that stores and outputs the fault status information of the electronics.

Therefore, it is possible not only to accurately perform performance evaluation and failure diagnosis on various electrical appliances mounted on a vehicle, but also to accurately operate a vehicle-mounted computer without a large amount of time and manpower, or to have electrical equipment in which a failure occurs. In this case, it is possible to know exactly where the position is, the speed at that time and the driving position of the vehicle, etc., and also to accurately perform the troubleshooting and performance evaluation according to the measurement results of the electronic equipment, and to perform more prompt and necessary measures. It is possible to greatly increase the safety and reliability of the electric railway vehicle running.

Electronics, speed, position, onboard computer, host computer, auxiliary computer

Description

Aid-measurement of electrical devices in electrical railway             

1 is a block diagram of a system of the present invention;

Explanation of symbols on the main parts of the drawings

1: speed sensor 2: frequency / voltage converter

3: first A / D converter 4: vehicle speed detector

5: counter 6: location information detector

7: Vehicle-mounted computer 8: RS485 communication interface

9: Electronic Device 10: Electronic Device Voltage Detection Sensor

11: Electric current detection sensor 12: Electric temperature detection sensor

13: 2nd A / D conversion part 14: Host computer for a measurement

15: auxiliary computer for measurement 16: monitor

17: wired communication interface 18: wireless communication interface

19: railway operation management system

The present invention relates to an electronic measurement state auxiliary measurement system of an electric railway vehicle, and more particularly, a measurement host installed only when measuring voltage, current, and temperature information of various electric appliances installed in each vehicle of an electric railway vehicle. In addition to receiving speed and position information when inputting from a computer, various electronic devices and status information such as propulsion, braking, and auxiliary power are normally received from a vehicle-mounted computer installed in the vehicle through the RS485 communication interface. It is possible to perform performance evaluation and troubleshooting on various electronic devices more accurately, so that the on-board computer works correctly without spending a lot of time and manpower, there are electronic devices in which the failure occurs, and where is it? Speed and the vehicle's driving position It is invented so that fault diagnosis and performance evaluation can be performed more accurately.

In general, since electric vehicle is a mass transportation mode, the performance of each part must be guaranteed.

Among other things, it is important to verify that the onboard devices and the ground devices exchange information with each other correctly and that each control device or status information is accurately displayed on the screen in the cab or obtains fault information.

Although it is different according to each route, safety and reliability are increased because it is a proven system when controlling and monitoring the onboard device using RS485 communication interface.

However, in the related art, a failure occurs in a specific electronic device because it adopts a method of simply analyzing a status signal input from each device without receiving information from sensors that detect driving speed, position information, and various electronic device states. At that time, there was a difficult problem to accurately grasp various information about him.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and installs a voltage, current, and temperature sensor on each of the electrical equipment to measure its state in a traveling electric railway vehicle, and measures them in a host computer for measurement. The vehicle-mounted computer that connects directly to the measurement host computer through a measurement auxiliary computer installed in each vehicle, etc., and collects and stores various electronic equipment in the vehicle and various status information such as propulsion, braking, auxiliary power, etc. By connecting to the host computer for measurement through RS485 communication interface and receiving the speed and location information, it is possible to perform performance evaluation and trouble diagnosis of various electrical appliances mounted on the vehicle more accurately. Is the onboard computer operating correctly without manpower? Accurately grasp information on whether there are any electrical equipment, etc., where there is a broken electronics, where is the speed and driving position of the vehicle, and perform accurate diagnosis and performance evaluation accordingly. Its purpose is to provide an auxiliary system for measuring the condition of electrical equipment in electric railway vehicles.

An object of the present invention is a speed sensor which is provided on the wheel of the railway vehicle for generating a pulse signal corresponding to the rotational speed of the wheel while the railway vehicle is running; A frequency / voltage converter converting the frequency of the intermittent pulse detected by the speed sensor into a voltage; A first A / D converter converting the analog railroad vehicle speed voltage output from the frequency / voltage converter into a digital signal; A vehicle speed detector configured to receive an output signal of the first A / D converter and detect a current traveling speed of a railway vehicle; A counter for counting intermittent pulses detected by the speed sensor; A position information detection unit which receives the output signal of the counter and calculates the traveling distance of the railway vehicle compared to the number of pulses and detects the position thereof; A vehicle-mounted computer that collects and stores various electrical appliances installed in the vehicle and the state information of the propulsion, braking, and auxiliary power sources in normal times; An RS485 communication interface for transmitting various state information stored in the vehicle-mounted computer to a measurement host computer as needed; An electrical equipment voltage / current / temperature detection sensor for detecting voltage, current, and temperature for each of the various electrical appliances installed in each vehicle; A second A / D conversion unit converting the electrical component voltage, current and temperature values into a digital signal; It receives and stores various state information from the vehicle speed detector, the position information detector, the second A / D converter, and the vehicle-mounted computer in real time. It is configured as a measurement host computer that stores and outputs the failure status information of the electronic equipment, and the measurement host computer can display various information directly on a monitor or output it to a remote railway operation management system through a wired / wireless communication interface. This can be achieved by.

In addition, if necessary, the measurement auxiliary computer is installed in another vehicle that does not have a measurement host computer, and the measurement auxiliary computer stores voltage, current, and temperature information of various electrical appliances installed in the vehicle. This can be achieved by simultaneously transferring the data to the measurement host computer.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows a block diagram of a system of the present invention.

According to the present invention, there is provided a system comprising: a speed sensor (1) installed at a wheel of a railroad vehicle for generating a pulse signal corresponding to the rotational speed of a wheel while the railroad vehicle is running;

A frequency / voltage converter (2) for converting the frequency of the intermittent pulse detected by the speed sensor (1) into a voltage;

A first A / D converter (3) for converting an analog railway vehicle speed voltage output from the frequency / voltage converter (2) into a digital signal;

A vehicle speed detector (4) which receives the output signal of the first A / D converter (3) and detects the current traveling speed of the railway vehicle;

A counter (5) for counting intermittent pulses detected by the speed sensor (1);

A position information detector (6) which receives the output signal of the counter (5) and calculates the traveling distance of the railway vehicle compared to the number of pulses to detect the position of the vehicle;

A vehicle-mounted computer 7 which collects and stores various electrical appliances 9 installed in the vehicle in normal time and state information such as propulsion, braking, and auxiliary power;

An RS485 communication interface 8 for transmitting various state information stored in the vehicle-mounted computer 7 to the measurement host computer 14 as necessary;

Electrical appliances voltage / current / temperature detection sensors (10)-(12) which are installed in various electrical appliances (9) installed in each vehicle and detect voltage, current, and temperature for them, respectively;

A second A / D conversion unit 13 for converting voltage, current, and temperature values of various electrical appliances detected as analog signals through the electrical component voltage / current / temperature detection sensors 10-12 to digital signals; Wow;

The vehicle speed detection unit 4, the position information detection unit 6, the second A / D conversion unit 13, and the vehicle-mounted computer 7 receive and store various state information in real time, and at the same time fail in a specific electrical equipment. In the event of occurrence, it is a basic feature that the host computer 14 is configured to memorize and output the fault status information of the corresponding electrical equipment together with the speed and position information at that time.

At this time, the measurement host computer 14 displays various measurement information and speed and position information of the various electrical appliances 9 directly on the monitor 16 or remotely via the wired / wireless communication interfaces 17 and 18. It is an additional feature to output to the railway operation management system 19.

In addition, if necessary, in another vehicle in which the measurement host computer 14 is not installed, a measurement auxiliary computer 15 is installed to install the electronics voltage / current / temperature detection sensor 10-12 installed in the vehicle. ) Further allows the measurement auxiliary computer 15 to store the voltage, current and temperature information of the electrical components 9 detected in the It is characteristic.

Here, for convenience, the codes of the electrical equipment installed in each vehicle and the electrical equipment / voltage / current / temperature detection sensors installed in each of them are uniformly written.

Referring to the operation and effect of the system of the present invention configured as described above are as follows.

First, the system of the present invention installs electrical equipment voltage / current / temperature detection sensors (10)-(12) on electrical equipments (9) for which a condition measurement of each electrical equipment of an electric railway vehicle equipped with a vehicle-mounted computer (7) is desired. In addition, a measurement host computer 14 is installed, and if necessary, a separate measurement auxiliary computer 15 is installed in each vehicle. Checking the status of the various electrical appliances 9 by driving speed and location by comprehensively measuring the status of the various electrical appliances 9 detected and information such as propulsion, braking and auxiliary power, etc. System.

As such, when the configuration of the state auxiliary measurement system of the electrical equipment is completed and the electric railway vehicle is driven, the speed sensor 1 installed on the wheel continuously generates a pulse signal corresponding to the rotational speed of the wheel while the railroad vehicle is traveling. It outputs to the converter 2 and the counter 5.

Therefore, the frequency / voltage converter 2 converts the frequency of the interrupt pulse detected by the speed sensor 1 into an analog voltage and outputs the analog voltage to the A / D converter 3. In the D converter 3, the analog railroad vehicle speed voltage output from the frequency / voltage converter 2 is converted into a digital signal.

Therefore, the vehicle speed detector 4 receives the output signal of the A / D converter 3 and detects the current traveling speed of the railway vehicle and transmits it to the measurement host computer 14.

On the other hand, since the counter 5 counts the intermittent pulses detected by the speed sensor 1 and sends them to the position information detector 6, the position information detector 6 inputs the output signal of the counter 5. The distance of the railway vehicle compared to the number of pulses is calculated to detect the position of the vehicle.

At this time, the calculation method for determining the position of the railway vehicle in the position information detecting unit 6 is based on the number of pulses generated when the wheel of the railway vehicle is rotated and the circumferential length data of the wheel, the counter 5 When the number of pulses input is multiplied by the circumferential length of the wheel, the starting point of the railway vehicle is calculated as "0", and it is continuously calculated as to how many Km points the railway vehicle is currently traveling. It is sent to the host computer 14 for measurement.

Further, as described above, when the speed and the position information of the electric railway vehicle are continuously detected and inputted to the measurement host computer 14, the on-vehicle computer 7 stores various electrical appliances 9 installed in the vehicle at ordinary times. In addition, the data stored in the state information such as propulsion, braking, auxiliary power, and the like are transmitted to the measurement host computer 14 through the RS485 communication interface 8.

In addition, the electronics voltage / current / temperature detection sensors 10 to 12 installed in the various electrical appliances 9 of each vehicle detect the voltage supplied to the electronics and the current and temperature flowing therein, respectively. Output to the 2nd A / D conversion part 13 is carried out.

Therefore, in the second A / D converter 13, the digital, voltage, current, and temperature values of the various electrical components detected as analog signals through the electrical component voltage / current / temperature detection sensors 10 to 12 are digital signals. Is converted into a transmission to the measurement host computer 14.

Accordingly, in the measurement host computer 14, various status information transmitted from the on-vehicle computer 7 including output signals of the respective parts, that is, traveling speed, position information, and voltage, current, and temperature values for various electrical appliances. Receive the information in real time in the memory itself and at the same time perform the electronic device condition measurement program to determine whether a failure occurs in a particular electronic device.

As a result, when it is determined that a failure has occurred in a specific electronic device 9, the failure status information for the electronic device is stored in itself along with the speed and position information at that time, and output through an output device such as the monitor 16. By measuring the position information (KP), the operator can determine whether the onboard computer 7 is operating correctly, whether there is a faulty electrical appliance, etc., and if there is a faulty electrical appliance, where is the position, the speed at that time, and where the vehicle is traveling. accurate information on kilo kilo posts, etc., accurate fault diagnosis and performance evaluation, and necessary actions promptly.

In addition, since the measurement host computer 14 is further provided with a wired or wireless communication interface 17, 18, if necessary, the railroad operation management of status information, position and speed information of the detected electrical equipments as described above is required. It transmits to the system 19 to pinpoint at which point during the propulsion and braking at which point and at what speed when a failure occurs in a particular electrical component of the electrical component 9 of each vehicle in which the railway vehicle is driven. Be aware and follow up as soon as necessary.

On the other hand, if the voltage, current and temperature information for the electrical equipment 9 installed in each vehicle is directly transmitted to the measurement host computer 14 installed in the other vehicle, data errors due to ambient noise may occur. However, there is a concern that the processing capacity of the measurement host computer 14 may be impaired.

Therefore, in the present invention, the measurement auxiliary computer 15 is additionally installed in each vehicle as necessary to provide voltage, current, and temperature information of various electrical appliances 9 installed in the vehicle. The above-mentioned problem can be solved by allowing it to be stored in itself and to be transmitted to the measurement host computer 14 at the same time.

This invention can be implemented in other various forms, without deviating from the mind or main characteristic. Therefore, the above-described embodiments are merely examples in all respects and should not be interpreted limitedly.

The scope of the present invention is shown by the scope of the claims, which are not limited by the specification text, and all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

According to the present invention as described in detail above, in the electric vehicle vehicle equipped with a vehicle-mounted computer is provided with the electrical equipment voltage / current / temperature detection sensor to the electrical equipment that wants to measure the state of the electrical equipment installed in each vehicle and At the same time, a measurement host computer is installed, and if necessary, a separate measurement auxiliary computer is installed in each vehicle, and the status information on various electrical equipments detected by the existing vehicle-mounted computer in the traveling electric vehicle, In addition to information such as propulsion, braking, and auxiliary power, it is possible to comprehensively measure the status of various types of electronic devices by driving speed and position, so that performance evaluation and troubleshooting of various electronic devices mounted on a vehicle can be performed more accurately. Without the need for a lot of time and manpower, It is possible to know exactly whether it is in operation, whether there is a faulty electrical equipment, where is the position of the faulty electrical equipment, where the speed and driving position of the vehicle are located, and also the failure according to the measurement result of the electrical equipment. It is a very useful invention that can perform diagnosis and performance evaluation accurately and take more prompt and necessary measures, which can greatly increase the safety and reliability according to the driving of the electric railway vehicle.

Claims (5)

A speed sensor installed at the wheel of the railway vehicle and generating a pulse signal corresponding to the rotational speed of the wheel while the railway vehicle is traveling; A frequency / voltage converter converting the frequency of the intermittent pulse detected by the speed sensor into a voltage; An A / D converter converting the analog railroad vehicle speed voltage output from the frequency / voltage converter into a digital signal; A vehicle speed detector configured to receive an output signal of the A / D converter and detect a current traveling speed of a railway vehicle; A counter for counting intermittent pulses detected by the speed sensor; A position information detection unit which receives the output signal of the counter and calculates the traveling distance of the railway vehicle compared to the number of pulses and detects the position thereof; A vehicle-mounted computer that collects and stores various electrical appliances installed in the vehicle and the state information of the propulsion, braking, and auxiliary power sources in normal times; An RS485 communication interface for transmitting various state information stored in the vehicle-mounted computer to a measurement host computer as necessary; An electrical equipment voltage / current / temperature detection sensor mounted on each of the various electrical appliances installed in each vehicle and detecting voltage, current, and temperature for each of them; A second A / D converter for converting voltage, current, and temperature values of various electronic devices detected as analog signals through the electronic device voltage / current / temperature detection sensor into digital signals; It receives and stores various status information in real time from the vehicle speed detection unit, the position information detection unit, the second A / D conversion unit, and the vehicle-mounted computer. The electronic equipment vehicle auxiliary state measurement system, characterized in that configured as a host computer for measuring and storing the failure status information of the electrical equipment at the same time. The method according to claim 1, The measurement host computer, if a failure occurs in a specific electrical equipment of the electric railway vehicle running, the state information, position and speed information of the electrical equipment to the monitor in real time, characterized in that the electrical equipment of the electric vehicle vehicle system. The method according to claim 1, The measurement host computer transmits the real-time information, the position and the speed information of the electric equipment to a remote railway operation management system through a wireless communication interface when a failure occurs in a specific electric equipment of a running electric railway vehicle. Electronic auxiliary vehicle condition measurement system. The method according to claim 1, The measurement host computer transmits the status information, the position and the speed information of the electric equipments to a remote railway operation management system through a wired communication interface when a failure occurs in a specific electric equipment of a running electric railway vehicle. Electronic system condition measurement system of electric railway vehicle. The method according to claim 1, The measurement auxiliary computer is installed in another vehicle in which the measurement host computer is not installed, and the measurement auxiliary computer stores the voltage, current, and temperature information of various electrical appliances installed in the vehicle, and simultaneously measures the measurement host computer. Electronic equipment condition auxiliary measurement system of an electric railway vehicle, characterized in that the transmission to a computer.

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