KR100620058B1 - Portable device for measuring the road performance of railway vehicles and method therefor - Google Patents

Abstract

The present invention separates the measurement system into a main measurement system and a plurality of sub-measurement systems, and enables data transmission between the measurement systems to collect and analyze the data measured in the main measurement system. The present invention relates to a measuring apparatus and a control method thereof, comprising: a sensor unit having a plurality of sensors for measuring various physical quantities for measurement items required for running performance test of a railway vehicle; and a signal for each measurement item measured by each sensor of the sensor unit. At least one sub-measuring system including a data acquisition unit for storing and transmitting the current time and a screen display unit for outputting the acquired data to a screen; And a sensor unit having a plurality of sensors for measuring various physical quantities for the measurement items necessary for the driving performance test of the railway vehicle, and a signal for each measurement item measured by each sensor of the sensor unit together with the current time. Receives data from each of the sub-data acquisition systems, collects the data for each measurement item, stores them with time, and outputs the obtained data on the screen to analyze the driving performance of the corresponding railway vehicle with the stored data. It includes a main measurement system including a screen display.

Portable, simple, light weight, railway vehicle, running performance, sub measuring system, main measuring system

Description

Portable device for measuring the road performance of railway vehicles and method therefor}             

1 is a block diagram of an embodiment showing the configuration of a driving performance measuring apparatus for a portable railway vehicle according to the present invention,

2 is a table showing measurement points for measuring the running performance of a railway vehicle;

3 is a table showing the layout and the module name of the module of the sub-measuring system for testing the running performance of the railway vehicle according to the present invention;

4 is a block diagram showing an internal configuration of a data acquisition unit of a sub-measuring system according to the present invention;

5 is a flowchart showing a control method of a traveling performance measuring apparatus for a portable railway vehicle according to the present invention.

<Description of Symbols for Main Parts of Drawings>

110,120: Sub measuring system 111,121: Sensor part

112,122: data acquisition unit 113,123: screen display unit

130: main measurement system 140: hub

The present invention relates to an apparatus for measuring the running performance of a portable railway vehicle and a control method thereof. In particular, the measurement system is divided into a main measurement system and a plurality of sub-measuring systems, and data transmission is possible between the measurement systems. The present invention relates to a driving performance measuring apparatus for a portable railway vehicle and to a method of controlling the same, which can collect and analyze the data measured by.

In general, all trains, including electric railways, must be tested in advance of driving after development, in order to check whether all parts meet the designed performance after being mounted on the vehicle.

In the case of an electric vehicle, for example, 10 vehicles are configured and operated in a single train, and each vehicle has a plurality of identical measurement items, so that the same measuring device is used to measure a plurality of identical measurement items for each vehicle of 10 quantities. Multiple measuring sensors should be provided.

For example, the same measurement items such as the line voltage, the DC link voltage, the input voltages of the U, V, and W phases of the motor, the inverter voltage, etc., but the vehicle must be measured simultaneously for multiple devices. It is necessary to have a number of identical measuring devices to measure the performance.

In addition, when ten vehicles became one pair, in order to simultaneously measure the running performance of ten railway vehicles, it was necessary to measure several dozen measuring points using the same measuring apparatus.

In order to test the running performance of a railway vehicle, voltage / current of a large number of motors, voltage / current of each part of an inverter / converter, voltage / current of a charger, train speed, acceleration, acceleration variation amount, temperature of each part of the electric equipment, etc. Tens or hundreds of points must be measured simultaneously.

Therefore, in the past, due to the limitation of analytical ability and equipment, many parts cannot be measured at the same time, and only 16 measuring points are measured by one measuring instrument, and then the measured data is printed on paper in real time using a recorder and then recorded. Because the measurement point was measured by measuring the location of the points, it was not possible to accurately measure the condition of the vehicle.

Thus, the conventional measuring device could not measure many parts at the same time due to the limitation of analysis ability and equipment, and only 16 measurements are made during one test. Therefore, when many devices operate at the same time, the correlation between the devices is checked. In addition, there is a problem that it is not possible to accurately compare the relationship between the data when measuring by using a plurality of measuring devices.

In addition, a comprehensive measuring device has been made due to the gradual development of electronic technology, and thus a comprehensive measuring system has been installed and utilized in the G7 in Korea, but it is bulky and heavy because of the purpose of long-term testing. Due to the fixed / assembled device, there is a limit to moving the device, so there is a problem that it cannot be used for the test of the urban railway vehicle.

On the other hand, in constructing a system that can measure all the data necessary for measuring the running performance of a railway vehicle with a single device, the mobility must be good and the reliability of the data can be assured in all cases.

In addition, in the measurement of a large amount of data, measurement synchronization must be made so that the measurements of each measuring device can be compared at the same time. In addition, provision of a method for transmitting and receiving data between devices is an important part.

The present invention has been proposed to solve the above problems, the object of which is to measure the running performance of a railway vehicle traveling performance measuring apparatus of a portable railway vehicle that can simultaneously measure a number of measurement points with a single device and It is to provide a control method.

Another object of the present invention is to separate the measurement system of a railway vehicle into a main measurement system and a plurality of sub-measuring systems, and to enable mutual data communication so that the traveling of a portable railway vehicle capable of collecting and analyzing the measurement data in the main measurement system. It is to provide a performance measuring apparatus and a control method thereof.

It is still another object of the present invention to provide an apparatus for measuring the running performance of a portable railway vehicle and a control method thereof, wherein the sub-measuring system has a minimum measuring function and is made compact and portable.                         

Another object of the present invention can be applied to various types of vehicles by changing the measurement items, the applicability is improved, and thus the driving performance measuring apparatus and the control of the portable railway vehicle that can reduce the time and effort for the measurement To provide a way.

In order to achieve the above object of the present invention, the traveling performance measuring apparatus of the portable railway vehicle of the present invention, the sensor unit having a plurality of sensors for measuring the various physical quantities for the measurement items required for the running performance test of the railway vehicle; At least one sub-measuring system including a data acquisition unit for storing and transmitting a signal for each measurement item measured by each sensor of the sensor unit together with a current time, and a screen display unit for outputting the acquired data to a screen; And

A sensor unit having a plurality of sensors for measuring various physical quantities for the measurement items necessary for the running performance test of the railway vehicle, and stores the signal for each measurement item measured by each sensor of the sensor unit with the current time, and Receives data from each of the sub data acquisition systems, collects each of the measurement items and stores them with time. The data acquisition unit analyzes the driving performance of the corresponding railway vehicle with the stored data, and outputs the acquired data to the screen. It characterized in that it comprises a main measuring system including a screen display.

According to an aspect of the present invention, there is provided a method for measuring a running performance of a portable railway vehicle, the method comprising: searching for modules of a measurement module unit installed in a main measurement system and setting measurement items corresponding to the corresponding modules; After the module retrieval and item setting is completed, requesting a sub-measuring system for module retrieval and item setting and confirmation thereof; The sub-measuring system, when the request is received, searching for modules of a measurement module unit installed in the self-measuring unit and setting measurement items corresponding to the corresponding modules; The controller of the main measuring system checks the signal indicating that the module search and item setting is completed from the sub measuring system, checks the current time of its own clock, and sets a synchronization time interval between the main measuring system and the sub measuring system. ; After the measurement is made, the main measuring system and the sub measuring system determine whether the synchronization time interval has elapsed, and when the synchronization time interval has elapsed, the controller of the main measuring system outputs the current time to the sub measuring system, and then the sensor from the sensor unit. Receiving the measured signals and sequentially storing them in the storage unit; When the measurement signal is input from the last measurement module, it is determined whether the test is ended, and if it is not the end, the step of determining whether the synchronization time interval has elapsed is repeated. .

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. In the drawings referred to in the present invention, components having substantially the same configuration and function will use the same reference numerals.

1 is a block diagram of an embodiment showing the configuration of a driving performance measuring apparatus for a portable railway vehicle according to the present invention.

Referring to FIG. 1, a driving performance measuring apparatus of a portable railway vehicle according to the present invention includes two sub measuring systems 110 and 120 and a main measuring system 130.

Sub-measuring system 110, 120 according to the present invention is a sensor unit 111 and 121 having a plurality of sensors for measuring the various physical quantities for the measurement items required for the running performance test of the railway vehicle, and the sensor unit ( Data acquisition units 112 and 122 for storing and transmitting the signal for each measurement item measured by each sensor of 111 and 121 together with the current time, and a screen display unit 113 for outputting the acquired data to the screen. 123).

The main measurement system 130 according to the present invention includes a sensor unit 131 having a plurality of sensors for measuring various physical quantities for measurement items required for the driving performance test of a railway vehicle, and each sensor of the sensor unit 131. It stores the signal for each measurement item measured by the current time, and also receives the data from each of the sub-measuring system (110,120), and collects the data for each measurement item and stores it with the time, the corresponding railway vehicle It includes a data acquisition unit 132 for analyzing the driving performance of the, and a screen display unit 133 for outputting the obtained data on the screen.

The sub-measuring systems 110 and 120 may be manufactured to include a plurality of measurement modules in a case which is easy to carry so that the sub-measuring systems 110 and 120 may be simply connected to the main measurement system 130.

In this case, each measurement module can individually configure the filter S / W and H / W, these measurement modules are completely separated to configure the signal to prevent interference. The sensor units 111 and 121 of the sub measurement system 110 and 120 include a temperature sensor, a voltage sensor, a current sensor, an acceleration sensor, and a speed sensor.

In addition, the traveling performance portable measuring device of the railway vehicle may be made of a structure that can be mounted on and removed from the vehicle in order to make it easy to carry and transport.

In addition, the sub-measuring system (110, 120) may be formed in a plurality, wherein the main measurement system 130 is connected to the plurality of sub-measuring system (110, 120) and a LAN (LAN) Local Area Network (Hub) It is possible to communicate with each other. That is, data transmission and reception between each device is made through a LAN using a hub (Hub) 140 when using a plurality of devices, it can be made by connecting directly when using only two devices.

Hereinafter, the operation and effects of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is to separate the main measurement system and the sub measurement system to measure the running performance of the railway vehicle to be detachable from each other, to enable the data transmission between the main and sub, and to adjust the measurement items appropriately, It will be described in detail with reference to the drawings.

The sub-measurement systems 110 and 120 will be described in detail. Each of the sub-measurement systems 110 and 120 receives synchronization signals from the main measurement system 130 to synchronize the measurement. At this time, through the sensor unit 111, 121 of the sub-measuring system (110, 120) measures various physical quantities for the measurement items required for the running performance test of the railway vehicle.

When measuring the measurement point of the railroad car, each of the sub-measuring systems 110 and 120 receives the current time from the main measuring system 130 and synchronizes its own time with the time of the main measuring system 130.

Each of the sub-measuring systems 110 and 120 and the main measurement system 130 measure items required for the driving performance test of the railway vehicle through the sensor units 111 and 121 for a predetermined time (for example, 5 minutes) in a time-aligned state. do.

2 is a table showing measurement points for measuring the running performance of railroad cars.

As can be seen in the column of Fig. 2, speed sensor-vehicle speed sensor and axle speed sensor, voltage sensor-wire voltage sensor, DC link voltage sensor, pneumatic sensor-control vehicle pneumatic sensor and power vehicle pneumatic sensor, current sensor-converter Input current sensor 1,2, inverter output current U phase, V phase, W phase sensors, signal sensor-propulsion signal sensor, brake signal sensor, CM motion signal sensor, door motion signal sensor, extended feed signal sensor, dump motion signal And dump motion signal, brake sensor-commercial brake sensor, security brake sensor, stop brake sensor and parking brake sensor, air conditioner motion sensor-air conditioner motion sensor (half), air conditioner motion sensor (full), heater motion sensor (half), heater Motion sensors (front) and acceleration sensors are installed in one vehicle and connected to the data acquisition units 112 and 122 of the sub measurement systems 110 and 120.

3 is a table showing the layout and the module names of the modules of the sub-measuring system for testing the running performance of the railway vehicle according to the present invention.

Sensors are installed in corresponding portions of the railway vehicle corresponding to each measurement point shown in FIG. 2, and the sensors are connected to respective modules installed in the module units of the data acquisition units 112 and 122. The module unit includes a rack so that each module is inserted into the rack and inputs measurement data input from each sensor to the data acquisition units 112 and 122.

The data acquisition units 112 and 122 of the sub measurement systems 110 and 120 store data input from each sensor during the synchronization time, and the main measurement system through the hub 140 according to the synchronization time with the data stored during the synchronization time. Send to 130.

4 is a block diagram showing the internal configuration of the data acquisition unit of the sub-measuring system according to the present invention.

The data acquisition units 112 and 122 of the sub-measuring system 110 and 120 according to the present invention include a communication unit 43 for performing data communication through the hub 140; A storage unit 42 for storing measured data; A measurement module unit 44 for converting the detection signals of the respective sensors input from the sensor units 111 and 121 including a plurality of sensors installed at the measurement points of the railway vehicle into electrical measurement signals; The measurement signal of the measurement module unit 44 is synchronized with the main measurement system 130 and stored in the storage unit 42, and the communication unit 43 controls the main measurement system 130 through the hub 140. It consists of a control unit 41 for transmitting to.

Although the data acquisition units 112 and 122 of the sub measurement systems 110 and 120 have been described herein, the internal configuration of the data acquisition unit 132 of the main measurement system 13 is also the same.

The main data acquisition unit 130 transmits current time data to synchronize the measurement time to each of the sub data acquisition units 110 and 120, and transmits the measurement signal transmitted from each of the sub data acquisition units 110 and 120 to the present time. It is stored together with the storage unit 42 in time.

As such, the measured data inputted to the main measuring system 130 synchronized with the sub measuring systems 110 and 120 are stored in the storage unit 42 of the main measuring system 130 together with the time data to store the measured data at the same time. Marked in time, each measurement data can be compared at the same time.

5 is a flowchart showing a control method of a traveling performance measuring apparatus for a portable railway vehicle according to the present invention.

As shown in FIG. 3, the control unit 41 of the main measurement system 130 searches for modules of the measurement module unit 44 installed in the main measurement system 130 and sets measurement items corresponding to the corresponding modules (step). S1).

After the module search and the item setting for the main measurement system 130 are completed, the module measurement and the item setting and the confirmation are requested to the sub measuring systems 110 and 120 (step S2).

When the sub-measurement system 110 or 120 receives the module search and item setting and its confirmation request (step S3), the sub-measurement systems 110 and 120 search for modules of the measurement module unit 44 installed therein and set measurement items corresponding to the corresponding module ( Step S4).

The control unit 41 of the main measurement system 130 checks the signal from the sub-measuring systems 110 and 120 indicating that the module search and item setting have been completed (step S5), and displays the current time of the clock of the control unit 41 itself. After confirmation (step S6), the synchronization time interval is set to, for example, 5 minutes between the main measurement system 130 and the sub measurement systems 110 and 120 (step S7).

The synchronization time interval is a time at which the main measuring system 13 and the sub measuring systems 110 and 120 start measuring and receive measurement signals from a plurality of measuring points and store them in the storage unit 42 together with the current time.

After the measurement is made, it is determined whether the synchronization time interval has elapsed, and when the synchronization time interval has elapsed (step S8), the control unit 41 of the main measurement system 130 outputs the current time to the sub measurement systems 110 and 120 ( In step S9), the measurement signals of the sensors are received from the sensor units 111 and 121 and sequentially stored in the storage unit 42 (step S11).

When the measurement signal is input from the last measurement module, it is determined whether the test is ended, and if not, the process returns to the step S8, and if it is the end, the test is ended (step S12).

Similarly, the sub-measuring system 110, 120 receives the current time and adjusts its own time (step S10), receives the measurement signals of the sensors from the sensor units 111 and 121, stores them in the storage unit 42, and the main measurement system ( 130) (step S13).

If the measurement signal is input from the last measurement module, it is determined whether the test is finished, and if not, the process returns to the step S13, and if it is the end, the test is terminated (step S14).

The above description is only a description of specific embodiments of the present invention, and the present invention is not limited to these specific embodiments, and furthermore, various changes and modifications of the configuration are possible from the above-described specific embodiments of the present invention. Those skilled in the art will readily appreciate.

According to the present invention as described above, in the traveling performance portable measurement apparatus of a railway vehicle, the data acquisition system is separated into a main and a sub to separate the data acquisition system to measure the running performance of the railway vehicle, respectively manufactured to be detachable from each other, the main and sub It is possible to transfer the data between them and adjust the measurement items appropriately, so that it is easy to attach and detach, and it is easy to carry by making the sub small with the minimum measuring function, thereby improving the mobility and portability. By changing the item, it can be applied to various types of vehicles, thereby improving applicability, thereby reducing the time and effort for measurement.

Claims (6)

Measurement items measured by sensors 111 and 121 having a plurality of sensors for measuring various physical quantities for measurement items required for the running performance test of a railway vehicle, and sensors of the sensors 111 and 121. At least one sub-measuring system including a data acquisition unit 112 and 122 for storing and transmitting a star signal together with a current time, and a screen display unit 113 and 123 for outputting the acquired data to a screen. 110,120); And The sensor unit 131 having a plurality of sensors for measuring various physical quantities for the measurement items required for the running performance test of the railway vehicle, and the signal for each measurement item measured by each sensor of the sensor unit 131 at the present time. And the data acquisition unit 132 which receives data from each of the sub-measuring systems 110 and 120, collects the data for each measurement item, and stores them together with time. The data acquisition unit 132 analyzes the driving performance of the corresponding railway vehicle using the stored data. And a main measurement system (130) including a screen display unit (133) for outputting the obtained data on the screen. The apparatus of claim 1, wherein the sub-measuring system (110, 120) is made of a portable module. The traveling performance measuring apparatus of claim 1, wherein the traveling performance portable measuring apparatus of the railway vehicle is configured to be mounted on and removed from the vehicle in order to simplify carrying and carrying. The apparatus of claim 1, wherein the sub-measuring system (110, 120) and the main measurement system (130) are connected through a hub connected by a LAN line. The method of claim 1, wherein the data acquisition unit (112, 122, 132) comprises a communication unit 43 for data communication through the hub (140); A storage unit 42 for storing measured data; A measurement module unit 44 for converting the detection signals of the sensors input from the sensor units 111, 121, 131 into electrical measurement signals and outputting the electrical measurement signals; The control unit 41 which synchronizes the measurement signal of the measurement module unit 44 with the main measurement system 130 and stores it in the storage unit 42, and controls the communication unit 43 to communicate with each other through the hub 140. Running performance measuring apparatus of a portable railway vehicle, characterized in that consisting of. Searching for modules of the measurement module unit 44 installed in the main measurement system 130 and setting measurement items corresponding to the corresponding modules; After the module search and the item setting are completed, requesting the sub measurement system (110, 120) for the module search and item setting and confirmation thereof; When the request is received, the sub-measuring system (110, 120) searching for the modules of the measurement module unit (44) installed therein and setting measurement items corresponding to the corresponding modules; The control unit 41 of the main measuring system 130 checks the signal indicating that the module search and item setting is completed from the sub measuring systems 110 and 120, checks the current time of its own clock, and then the main measuring system 130 and the sub Setting a synchronization time interval between measurement systems (110, 120); After the measurement is made, the main measurement system 130 and the sub measurement systems 110 and 120 determine whether the synchronization time interval has elapsed, and when the synchronization time interval elapses, the controller 41 of the main measurement system 130 determines the current time. Outputting to the sub-measuring system (110, 120), and subsequently receiving the measurement signals of the sensors from the sensor (111, 121) and sequentially storing them in the storage (42); When the measurement signal is input from the last measurement module, it is determined whether the test is terminated. If not, the process of determining whether the synchronization time interval has elapsed is repeated. Running performance measurement method of a portable railway vehicle, characterized in that.

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