CN213600090U

CN213600090U - Speed measurement and mileage detection device

Info

Publication number: CN213600090U
Application number: CN202022780437.5U
Authority: CN
Inventors: 韩志杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-02
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a speed measuring and mileage detecting device, which comprises a roller detecting component and an auxiliary detecting component; the roller detection assembly is arranged at the bottom of the train, and the auxiliary detection assembly is arranged at the two sides of the train; the roller detection assembly measures the rotating speed of the roller in a laser detection mode; the roller detection assembly comprises a roller detection bracket, a counter, a laser emitter, a laser receiver, a reflector, a processor and a display panel; the roller support is arranged at the bottom of the train and close to the roller, the reflector is arranged on the roller, the laser emitter and the laser receiver are connected with the roller detection support, and the laser emitter and the laser receiver are arranged in a matching way with the roller; the laser receiver is electrically connected with the counter; the utility model discloses a carry out contactless measurement to the train gyro wheel, calculate the speed of train with the mileage, even the train gyro wheel takes place wearing and tearing, can not its measuring accuracy to guarantee the accuracy of train data, guarantee the operation safety of train.

Description

Speed measurement and mileage detection device

Technical Field

The utility model belongs to the technical field of the rail transit technique and specifically relates to a speed measurement and mileage detection device.

Background

With the rapid development of the domestic rail transit industry, higher requirements are placed on the safety and reliability of rail transit; the accurate real-time running speed of the train is the normal work basis of a plurality of vehicle-mounted devices, and the accuracy of the data is directly related to the performance of technologies such as train kilometer post positioning, traction and braking force control and the like.

However, the currently used train speed detection technologies all have certain disadvantages. At present, 2 methods are mainly used for calculating the running speed of a train, one method is a speed sensor method, and the other method is a GPS method. The speed sensor method is that a speed sensor is arranged on a motor, the rotating speed of a wheel can be calculated by detecting the rotating speed of a motor rotor and multiplying the rotating speed by the transmission ratio between an axle and the motor, then the linear speed of a wheel tread is calculated through the wheel diameter of the wheel, and the running speed of a train is expressed by the linear speed. However, this method has some disadvantages: 1) the axle is meshed with the motor rotor through multiple stages of gears, and vehicle speed calculation errors are caused by distortion of the transmission ratio due to manufacturing tolerance, abrasion and the like; 2) the wheels are not cylinders with equal radius and have certain taper, the wheels and the train body are flexibly suspended during running of the train, the wheels can move left and right to cause the diameters of the wheel parts in contact with the steel rails to be changed all the time, and errors can be brought to speed calculation; 3) the wheel is an easily-worn part, and the outer diameter of the tread of the running wheel of the train is gradually worn, so that the diameter of the wheel is changed, and errors are brought to the calculation of the speed of the train; 4) when the traction force or the braking force exceeds the maximum friction force during the running of the train, the wheels can spin, and at the moment, although the linear velocity of the tread of the wheels is not the running speed of the train, a great error is introduced to the calculation of the speed of the train. The GPS method is that a GPS module is installed on a train, and the running speed of the train is detected through a global positioning system. The method also has the problem of signal loss in tunnels or mountainous areas, and although the method can compensate by adding inertial navigation, the method also has a limited effect on longer tunnels.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a utility model aim at: aiming at the problems, the speed measurement and mileage detection device is provided, and the problems that the speed measurement is not accurate in rail transit, the speed measurement has errors, and the influence is brought to the train operation safety are solved.

The scheme is realized as follows:

a speed measurement and mileage detection apparatus: the device comprises a roller detection assembly and an auxiliary detection assembly; the roller detection assembly is arranged at the bottom of the train, and the auxiliary detection assemblies are arranged at the two sides of the train; the roller detection assembly measures the rotating speed of the roller in a laser detection mode.

Preferably, the roller detection assembly comprises a roller detection bracket, a counter, a laser emitter, a laser receiver, a reflector, a processor and a display panel; the roller support is arranged at the bottom of the train and close to the roller, the reflector is arranged on the roller, the laser emitter and the laser receiver are connected with the roller detection support, and the laser emitter and the laser receiver are arranged in a matching way with the roller; the laser receiver is electrically connected with the counter.

Preferably, the counter is electrically connected to the processor, and the display panel is electrically connected to the processor, and the processor processes the data and displays the obtained data on the display.

Preferably, the auxiliary detection assembly comprises an auxiliary detection board, a mileage memory and a support rod; the mileage storage device is fixedly connected with the ground inside the tunnel through the supporting rods, the mileage storage device is arranged on the two sides of the train, and the mileage storage device is arranged in the train travelling direction at intervals.

Preferably, the auxiliary detection board is arranged on the outer side of the train, the height position of the auxiliary detection board is the same as the height of the mileage storage, the auxiliary detection board is used for detecting the mileage stored in the mileage storage, and the auxiliary detection board is electrically connected with the processor.

Preferably, the mileage storages are arranged along the traveling direction of the train and are arranged at equal intervals in sequence.

Preferably, the roller detection support is arranged to be multiple along the bottom of the train, and each roller detection assembly detects the data of the roller where the roller detection assembly is located.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses a carry out contactless measurement to the train gyro wheel, calculate the speed of train with the mileage, even the train gyro wheel takes place wearing and tearing, its inside girth can not take place to influence, can not its measuring accuracy to guarantee the accuracy of train data, guarantee the operation safety of train.

2. The utility model discloses a gyro wheel determine module and supplementary determine module carry out dual detection to train mileage data and speed data, have reduced because the unstable error that brings of signal in the tunnel, guarantee the accuracy of the data that detect.

Drawings

Fig. 1 is a schematic overall front view structure of the present invention;

FIG. 2 is a schematic side view of the whole structure of the present invention;

FIG. 3 is a schematic view of the mounting structure of the roller detecting bracket and the reflector according to the present invention;

fig. 4 is a schematic view of the installation structure of the laser transmitter, the laser receiver, and the reflector in the present invention;

the labels in the figure are: 1. a roller detection bracket; 2. a counter; 3. a laser transmitter; 4. a laser receiver; 5. a reflector; 6. a processor; 7. a display panel; 8. an auxiliary detection board; 9. a mileage memory; 10. a support rod.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the designated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

Example 1

As shown in fig. 1 to 4, a speed measurement and mileage detection device includes a roller detection assembly and an auxiliary detection assembly; the roller detection assembly is arranged at the bottom of the train, and the auxiliary detection assemblies are arranged at the two sides of the train; the roller detection assembly measures the rotating speed of the roller in a laser detection mode.

The roller detection assembly comprises a roller detection bracket 1, a counter 2, a laser emitter 3, a laser receiver 4, a reflector 5, a processor 6 and a display panel 7; the roller support is arranged at the bottom of the train and close to the roller, the reflector 5 is arranged on the roller, the laser emitter 3 and the laser receiver 4 are connected with the roller detection support 1, and the laser emitter 3 and the laser receiver 4 are arranged in a matching way with the roller; the laser receiver 4 is electrically connected with the counter 2;

the laser transmitter 3 is used for transmitting laser, the laser receiver 4 is used for receiving the laser reflected by the reflector 5, and when the laser receiver 4 receives the laser once, the counter 2 counts once; the counter 2 is electrically connected with the processor 6, the speed of the roller in unit time can be known through the counting of the roller by the counter 2, and the total mileage traveled by the train can be calculated through the counting of the accumulated counter 2;

based on above-mentioned structure, can be through carrying out contactless measurement to the train gyro wheel, calculate the speed of train, and mileage, even the train gyro wheel takes place wearing and tearing, its inside girth can not take place to influence, can not its measuring accuracy to guarantee the accuracy of train data, guarantee the operation safety of train.

The display panel 7 is electrically connected to the processor 6, processes the data by the processor 6, and displays the obtained data on a display.

The auxiliary detection component comprises an auxiliary detection board 8, a mileage memory 9 and a support rod 10; the mileage storages are fixedly connected with the ground in the tunnel through support rods 10 and are arranged at the two sides of the train, and a plurality of mileage storages are arranged in the train advancing direction at intervals;

the auxiliary detection board 8 is arranged on the outer side edge of the train, the height position of the auxiliary detection board 8 is the same as that of the mileage memory, the auxiliary detection board 8 is used for detecting the mileage stored in the mileage memory 9, and the auxiliary detection board 8 is electrically connected with the processor 6;

the mileage storages are arranged along the advancing direction of the train and are sequentially arranged at equal intervals, for example, the mileage storages arranged in the tunnel are arranged one by one at intervals of 5 kilometers, the data stored in the first mileage detector is 5 kilometers, the data stored in the second mileage detector is 10 kilometers, and after the auxiliary detection board 8 reads the numerical value of the mileage storage at the position of the auxiliary detection board, the numerical value is compared with the mileage numerical value of the roller and corrected;

because the signal reception in the tunnel is unstable, the detection method in the detection 2 is needed to assist in measurement, double detection of the travel mileage and the speed of the train is realized, and the accuracy of the detected data is ensured.

The auxiliary detection board 8 is arranged at the two sides of the train, and the mileage data is simultaneously acquired through the two sides, so that the success rate of acquiring the data is improved.

The gyro wheel detects support 1 and sets up to a plurality ofly along the train bottom, and every gyro wheel determine module all detects its data of place gyro wheel, reduces the inaccuracy that single data brought.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A speed measurement and mileage detection device is characterized in that: the device comprises a roller detection assembly and an auxiliary detection assembly; the roller detection assembly is arranged at the bottom of the train, and the auxiliary detection assemblies are arranged at the two sides of the train; the roller detection assembly measures the rotating speed of the roller in a laser detection mode.

2. A speed measurement and range detection device as claimed in claim 1, wherein: the roller detection assembly comprises a roller detection bracket, a counter, a laser emitter, a laser receiver, a reflector, a processor and a display panel; the roller detection support is arranged at the bottom of the train and close to the roller, the reflector is arranged on the roller, the laser emitter and the laser receiver are connected with the roller detection support, and the laser emitter and the laser receiver are arranged in a matching way with the roller; the laser receiver is electrically connected with the counter.

3. A speed measurement and range detection device as claimed in claim 2, wherein: the counter is electrically connected with the processor, the display panel is electrically connected with the processor, the data are processed through the processor, and the obtained data are displayed on the display.

4. A speed measurement and mileage detection apparatus as recited in claim 3, wherein; the auxiliary detection assembly comprises an auxiliary detection plate, a mileage storage and a support rod; the mileage storage device is fixedly connected with the ground inside the tunnel through the supporting rods, the mileage storage device is arranged on the two sides of the train, and the mileage storage device is arranged in the train travelling direction at intervals.

5. A speed measurement and mileage detection apparatus as recited in claim 4, wherein; the auxiliary detection board is arranged on the outer side of the train, the height position of the auxiliary detection board is the same as that of the mileage accumulator, the auxiliary detection board is used for detecting the mileage stored in the mileage accumulator, and the auxiliary detection board is electrically connected with the processor.

6. A speed measurement and mileage detection device as recited in claim 5, wherein; the mileage accumulator is arranged along the advancing direction of the train and is arranged at equal intervals in sequence.

7. A speed measurement and mileage detection apparatus as recited in claim 6, wherein; the gyro wheel detects the support and sets up to a plurality ofly along the train bottom, and every gyro wheel determine module all carries out the detectability to the data of its place gyro wheel.