CN111391803A - Train derailment recognition early warning device - Google Patents

Abstract

The invention discloses a train derailment identification and early warning device. The device is composed of a laser ranging device, an early warning alarm module and a terminal processing module. The laser ranging device includes a laser ranging sensor, a sensor protection cover and a T-shaped combined rod. The sensor protective cover is provided with a laser ranging sensor, and the T-shaped combined rod is fixed on the bogie bolster through a U-shaped pipe clamp; the early warning and alarm module obtains the data of the laser ranging sensor in real time through a data line, The data is processed and compared with a preset threshold, and when data exceeding the threshold appears, a signal is sent through the wireless communication device to start the terminal processing module; the terminal processing module includes a brake processing module and a cab alarm module, and the brake processing module can be used. Automatically reduce the running speed of the train, and the alarm module is an alarm device that activates the cab.

Description

A train derailment identification and early warning device

technical field

The invention belongs to the field of train fault detection, in particular to a derailment identification and early warning device.

Background technique

Train derailment means that the wheels leave the rail during operation, so that the vertical and lateral restraint force of the rail on the wheelset disappears, and the train cannot continue to run normally on the track. The reasons for derailment are often difficult to find out. From the analysis of the types of derailment lines, high-speed railways, ordinary-speed railways, heavy-haul railways and urban rail transit lines have different operating speeds and train loads. The main reasons for derailment are also Inconsistent, as the running speed increases, the stickiness between the wheelset and the rail will decrease, and the risk of being affected by the external weather environment will increase. The chance of morphological influences such as its own smoothness will increase. At present, the detection device for train derailment has not been installed on the train, and the corresponding detection method is also to take measures after the train derails, which cannot avoid the harm caused by the derailment to the train and passengers.

At present, the devices or technologies for train derailment at home and abroad mainly lie in the alarm and treatment methods after the occurrence of derailment, and there is currently no technical means to detect and reduce the probability of derailment in time. Therefore, how to solve the above problems is the research object of the present invention.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a derailment identification and early warning device, which aims to take preventive measures in time for the derailment of the train while adapting to the existing train structure.

The object of the present invention can be realized through the following technical solutions:

A train derailment identification and early warning device is composed of a laser ranging device, an early warning alarm module and a terminal processing module. The laser ranging device includes a laser ranging sensor, a sensor protective cover and a T-shaped combined rod. A laser ranging sensor is arranged in the protective cover, and the laser ranging sensor includes a transmitting unit and a receiving unit; the T-shaped combined rod is fixed on the bogie bolster through a U-shaped pipe clamp; the early warning alarm module is connected through a data cable. Obtain the data of the laser ranging sensor in real time, compare the data with the preset threshold after processing, and start the terminal processing module through the wireless communication network when the data exceeding the threshold value occurs; the terminal processing module includes a brake processing module and a cab alarm The brake processing module can automatically reduce the running speed of the train, and the alarm module is an alarm device that activates the cab.

As a preferred solution, the laser ranging sensors are sequentially arranged on the left bottom end, the right bottom end and the left and right sides of the middle vertical bottom of the horizontal steel pipe in the combined rod. The data collected by the sensor is passed through the combined rod. The built-in data line is transmitted to the early warning and alarm module.

As a preferred solution, the transverse steel pipes of the combined rod are fixed on the bogie bolster through two U-shaped pipe clips on the left and right sides respectively, and the vertical rail is fixed on the bogie bolster through a U-shaped tube clip at the upper part.

As a preferred solution, the early warning and alarm module is located in the middle of the corresponding train body.

As a preferred solution, the early warning alarm module and the terminal processing module are connected through a wireless communication network, and a data transmission line is arranged as an emergency solution.

The brake processing module is installed in the train operation control system.

The alarm module is installed in the train fault display.

To further elaborate, the laser irradiation point of the laser ranging sensor is the position of the rail head.

To further elaborate, the sensor protection cover is fixed on the base plate by screws, and the base plate and the combined rod are welded to form a whole.

The advantages of the present invention are:

(1) The installation of the device is convenient and can be realized by adding the device to the bolster without affecting the existing structure of the vehicle body bogie.

(2) The accuracy of device identification is high. Compared with the method of identification through conversion indicators such as acceleration, the device realizes distance identification through pulsed laser, which is closer to the actual operating state in analysis.

(3) To reduce the hazards, the speed reduction warning will be given in time before the derailment may occur, and the driver will be informed of the train running status in time through the alarm prompt, so as to minimize the risk cost as much as possible.

(4) Wide range of applications, the device can be used on a variety of rail transit lines.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present patent more clearly, the following pictures are drawn and introduced.

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic diagram of the laser distance measuring device according to the present invention as viewed from the left.

FIG. 3 is an enlarged view of the laser distance measuring device of the present invention from the left side.

FIG. 4 is a schematic diagram of the working principle of the laser ranging device of the present invention.

FIG. 5 is a schematic diagram of the overall structure of the early warning alarm module and the terminal processing module of the present invention.

FIG. 6 is a flow chart of the working principle of the present invention.

Reference signs summary: 1-laser distance measuring device, 2-early warning alarm module, 3-terminal processing module, 4-bogie, 5-wheelset, 6-car body, 7-data transmission line, 8-T-type combination rod Pieces, 9-sensor protection cover, 10-U-shaped pipe clip, 11-steel rail, 12-laser ranging sensor, 13-bogie bolster, 14-wireless communication device, 15-brake processing module, 16-cab Alarm module.

Detailed ways

In order to understand the technical solutions of the present invention more clearly, the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

Embodiment: As shown in Figures 1-5, the present invention provides a train derailment identification and early warning device. The device is composed of a laser ranging device 1, an early warning alarm module 2 and a terminal processing module 3. The laser ranging device 1 includes A laser ranging sensor 12, a sensor protective cover 9 and a T-shaped combined rod 8, the sensor protective cover 9 is provided with a laser ranging sensor 12, and the laser ranging sensor 12 includes a transmitting unit and a receiving unit; the T-type The combined rod 8 is fixed on the bogie bolster 13 through the U-shaped tube clip 10; the early warning alarm module 2 obtains the data of the laser ranging sensor 12 in real time through the data transmission line 7, and compares the data with the preset threshold after processing. , when there is data exceeding the threshold value, the terminal processing module 3 is activated by sending a signal through the wireless communication device 14; the terminal processing module 3 includes a braking processing module 15 and a cab alarm module 16, and the braking processing module 15 can automatically reduce the train operation. per hour, the alarm module 16 is an alarm device for activating the cab, which can respectively provide derailment warning for high-speed railway, urban rail transit, heavy-haul railway and other lines by adjusting the corresponding thresholds.

As shown in Fig. 3-4, the sensor protective cover 9 arranged on the left and right ends and the bottom end of the T-shaped combined rod 8, the laser ranging sensor 12 arranged inside it illuminates the rail head vertically and horizontally, and receives its reflected light, A total of four sets of data collected from the vertical distance and the lateral distance from the rail heads on both sides are transmitted to the early warning and alarm module 2 through the data transmission line 7 for calculation to determine whether it exceeds the predetermined threshold.

As shown in Figure 5, when the value calculated by the early warning and alarm module 2 exceeds the threshold, a signal is sent through the wireless communication device 14 immediately, and the terminal processing module 3 cannot be connected, and the data transmission line 7 is used as an alternative; After the module 3 acquires the signal, it immediately controls the brake processing module 15 and the cab alarm module 16 through the data transmission line 7 .

As shown in FIG. 6 , a flow chart of the working principle of a train derailment identification and early warning device is introduced. During the running process of the train equipped with the present invention, the vertical distance and The lateral distance is then input to the early warning and alarm module 2 for calculation, and the obtained data is compared with the threshold value; when the data exceeds, it will immediately send a signal to the terminal processing module 3 to decelerate and brake the train, and issue a warning on the driving interface.

The above description of the examples is not intended to limit the scope of the present invention. For those skilled in the art, all modifications and changes made to the present invention are within the protection scope of the present invention.

Claims (3)

1. A train derailment identification and early warning device, the device is composed of a laser ranging device (1), an early warning alarm module (2) and a terminal processing module (3), the laser ranging device (1) comprises a laser ranging sensor (12), a sensor protective cover (9) and a T-shaped combined rod (8), the sensor protective cover (9) is provided with a laser ranging sensor (12), and the laser ranging sensor (12) includes a transmitting unit and receiving unit; the T-shaped combined rod (8) is fixed on the bogie bolster (13) through the U-shaped pipe clip (10); the early warning and alarm module (2) is obtained in real time through the data transmission line (7) The data of the laser ranging sensor (12) is processed and compared with a preset threshold value, and when data exceeding the threshold value occurs, the wireless communication device (14) sends a signal to start the terminal processing module (3); the terminal processing module (3) Including a brake processing module (15) and a cab alarm module (16), the brake processing module (15) can automatically reduce the running speed of the train, and the alarm module (16) is an alarm device for starting the cab, which can be adjusted by adjusting Corresponding thresholds respectively provide derailment warnings for high-speed railways, urban rail transit, and heavy-haul railways. 2. A train derailment identification and early warning device according to claim 1, characterized in that: the sensor protection cover (9) arranged at the left and right ends and the bottom end of the T-shaped combined rod (8), the laser The ranging sensor (12) illuminates the rail head vertically and horizontally, respectively, receives its reflected light, and transmits the collected vertical and lateral distances to the rail heads on both sides through the data transmission line (7), a total of four sets of data are transmitted to the early warning The alarm module (2) judges whether the predetermined threshold value is exceeded after operation. 3. A train derailment identification and early-warning device according to claim 1, characterized in that: when the value calculated by the early-warning alarm module (2) exceeds the threshold, a signal is immediately sent through the infinite communication device (14), and When the terminal processing module (3) cannot be connected, there is a data transmission line (7) as an alternative; when the terminal processing module (3) obtains the signal, it immediately decelerates and brakes the train, and issues a warning on the driving interface.

Images