CN201494472U - Distance meter for shunting of railway locomotive - Google Patents

Abstract

The utility model discloses a distance meter for shunting of railway locomotive, which has the advantages of simple structure and convenient use, and can cooperate with line geographic information data to calculate the driving distance needed for a front target and current speed in real time and assist a shunter to finish work, etc. The distance meter for shunting of railway locomotive is structured by consisting of a differential station and a handset; wherein the differential station is a computer which adopts a wireless mode to broadcast DGPS differential corrective information. The handset includes a micro-controller MCU; the micro-controller MCU is respectively connected with a FLASH memory, a GPS receiver, a keyboard, a liquid crystal screen, a wireless receiving module, a voice module and an interface circuit; and a battery provides a power for the work of the whole device.

Description

The shunting railway locomotives apomecometer

Technical field

The utility model relates to a kind of apomecometer, relates in particular to a kind of shunting railway locomotives apomecometer.

Background technology

At present in the railway system during locomotive shunting service, locomotive promotes train in the wings, the shunter carries out judging distance to preceding necromancer retaining, vehicle, three kinds of situations of caution mark foremost at train, report the driver with interphone, the driver progressively reduces the speed of a motor vehicle according to range-to-go, realizes safety stop or butt joint.Owing to multiple reason, phenomenons such as inaccurate often appear estimating, may cause the accident when serious.

Be subjected to the restriction of environment for use, the equipment that replaces the shunter to find range is never succeeded in developing.Traditional laser, radar ranging mode, need aim at measured target always, stand in outside the compartment when shunter works, the another hand that gets a grip on the rail is on the other hand taken interphone, can't operate distance measuring equipment (DME), and be subject to the interference of weather, adjacent tracks vehicle, under the situation that bend is arranged on the running route, can not measure the actual travel distance.Simultaneously, existing apomecometer can be divided into laser type substantially, primary categories such as ultrasonic type or electromechanics combine, for the laser type apomecometer, its survey precision height, but the also corresponding raising of equipment cost, simultaneously because the principle of light rectilinear propagation, it must assurance in measurement be aimed at measuring equipment at any time and just can measure accurately, it is at practical application cost height not only, and complicated operation, it obviously is inappropriate adopting this kind equipment for this situation of the reversing of locomotive, and because reversing is a dynamic process, must adjust the speed of a motor vehicle according to the distance of measuring in real time, so laser class apomecometer can't satisfy the needs of reversing; For the super sonic kind equipment, though it needn't operate too complicated as the laser kind equipment, but for the locomotive reversing, its periphery is to be existed by other a large amount of car bodies or equipment, for ultrasonic ranging, the accuracy of its measurement is had a greatly reduced quality like this, simultaneously for the road conditions as the detour, it is difficult for finishing real-time measurement equally, and range information accurately can not be provided; For the apomecometer of dynamo-electric association class, its structure complexity height, equipment is heavy, is difficult for carrying out hand-held, and can run into the same problem of laser class apomecometer when measuring.

Along with the raising gradually of gps system precision, this problem is known about the possibility of determining.

The utility model content

The purpose of this utility model is exactly in order to address the above problem, provide a kind of and have simple in structurely, easy to use, cooperate the circuit geographic information data, can calculate required operating range of the place ahead target and current vehicle speed in real time, the auxiliary shunter shunting railway locomotives apomecometer of advantage such as finish the work.

For achieving the above object, the utility model adopts following technical scheme:

A kind of shunting railway locomotives apomecometer, it is made up of difference station and hand-held set, and wherein the difference station is its employing wireless mode broadcasting RTCM form DGPS difference correction information of computing machine; Hand-held set comprises microcontroller MCU, and microcontroller is connected with FLASH memory device, GPS receiver, keyboard, LCDs, wireless receiving module, voice module and interface circuit respectively;

Microcontroller is data handing and control center, the data that its reception GPS receiver and wireless receiving module are sent here, determine position and speed that locomotive is current, finish distance calculation and running orbit record, by voice module prompting user distance velocity information, exchange with the user with LCDs by keyboard;

The GPS receiver receives the data of gps satellite broadcasting, output geographic position, state of kinematic motion and temporal information;

Wireless receiving module receives the DGPS difference correction information of difference station broadcasting, gives MCU, to improve the particularity and the stability of locating data;

The FLASH memory device is preserved all railway lines in this operating area, soil retaining, caution target geographical location information, is used for writing down the running orbit and the speed data of train in the shunting service simultaneously;

Voice module has speech-sound synthesizing function, is used for pointing out user the place ahead target range, the road speed information that whether exceeds the speed limit;

Keyboard and LCDs are the interfaces of microcontroller and user interactions, and the user operates this equipment by it;

Data-interface is used for connecting PC, the parameter of finishing the work setting, and program upgrade is downloaded geographic information data, the running orbit work of uploading record;

Battery provides electric power for operation of entire equipment.

The shunting railway locomotives distance-finding method of apomecometer, its step is:

1) before carrying out schedule job, downloads all railway lines in this operating area, soil retaining, caution target geographic position data to apomecometer from PC earlier;

2) during operation, at first determine the position of target in beginning, when target is the attachment point of having stored, by classification searching or directly import the target code name, access the position data of storage;

If the place ahead is a transient target, earlier at target place single-point position-measuring functions, measure and the preservation target location, import target position data then, then import the running route numbering and carry out schedule job;

Under the situation that does not have the circulation line geodata, use the line walking function to gather track data, carry out operation with the interim track data of gathering;

3) after operation begins, equipment regularly with the voice suggestion dispatcher to the distance of the place ahead target with whether road speed exceeds the speed limit and information such as range of a signal speed of a motor vehicle on liquid crystal display, the voice suggestion time is then set the time quantum of reporting in advance according to the speed of a motor vehicle, the conformability of assurance and actual distance; Write down running orbit, speed, temporal information simultaneously, it is for the record logout can be uploaded to PC behind one class of end-of-job.

The acquisition of geographic position data is in the described step 1): railway line and soil retaining along the line, caution target geographic information data use apomecometer that circuit and single-point position are surveyed, in the interior FLASH memory device of the machine that is recorded in, uploading to PC again obtains after editing and processing, or utilize the data that have electronic chart, calibrated, format conversion obtains;

Every railway line and soil retaining along the line, caution target geographic information data carry out category index by station track, up-downgoing, goods yard, and add explanatory note, form data file and download in the hand-held set.

Described step 2) during the single-point position measurement, apomecometer is placed on the tested point in, by the time the reading convergence stops to measure after reaching accuracy requirement, and read-out information or add numbering and be saved in the machine, the take off data of preservation can upload in the PC.

Described step 2) the line walking function is gathered track data in, and the shunter carries apomecometer and makes an inspection tour object point by operation initial point road along the line and return initial point again, and the geographic information data of record circuit can be used for shunting service in machine.

Being defined as of described step 3) middle rolling car speed: railway line is represented with a series of linear portions, each line segment is represented with sequence number, end points coordinate, length, to the route segmentation time, the error of the length of each linear portion and its cooresponding actual path is controlled in the setting range, every iron leg route is made up of the data of numbering, text description, line segment sum and each line segment, all data download in the hand-held set after editing and processing on the PC is good;

Hand-held set is earlier with the target location, current location is mapped on the route of appointment with the road matching algorithm, then successively on the computational scheme current point to each line segment length sum between object point, be the distance that current locomotive will travel to target, concrete computation process is, with A on the route, the circuit of B point-to-point transmission is divided into a plurality of linear portions, the A point is in line segment 1, B is in line segment n, and the C point is the terminal point of line segment 1, and the D point is the starting point of line segment n, the latitude of four points, longitude is respectively: A (Lat1, Lon1), and B (Lat2, Lon2), C (Lat3, Lon3), and D (Lat4, Lon4), the length of m section linear portion is Lm, and AB point-to-point transmission operating range is:

$A\sqrt{{(\mathrm{lat}3-\mathrm{lat}1)}^2+{\left((\mathrm{lon}3-\mathrm{lon}1)\cos \left(\mathrm{lat}1\right)\right)}^2}+A\sqrt{{(\mathrm{lat}2-\mathrm{lat}4)}^2+{\left((\mathrm{lon}2-\mathrm{lon}4)\cos \left(\mathrm{lat}2\right)\right)}^2}+\underset{m=2}{\overset{n-1}{\mathrm{\Σ}}}{L}_m$

Constant A=111120 meter wherein are through the unit degree of being of, latitude.

The utility model total system is made up of difference station and hand-held set two parts, RTCM form DGPS difference correction information is broadcasted with wireless mode in the difference station, covering radius is five to ten kilometers, operated by rotary motion is at the commanding elevation place of institute overlay area, and hand-held set utilizes the difference correction data can obtain more precise and stable locating effect.

The utlity model has service vehicle's scheduling, route survey, single-point position-measuring functions, its process is:

Carry out in the process in schedule job, GPS receiver and wireless receiving module are regularly with locating data, the difference correction data are delivered among the MCU, after MCU determines present position and velocity information, the geographic information data of the corresponding road of inquiry from the FLASH memory device, add up the length of each segmentation successively along route, obtain operating range apart from target, whether exceed the speed limit according to rule judgment, with information sending voice module and be presented on the LCDs, simultaneously with current position coordinates, speed, temporal information records in the FLASH memory device, and this process is carried out repeatedly up to the end of job.

In the route survey process, GPS receiver and wireless receiving module are regularly delivered to locating data, difference correction data among the MCU, after MCU determines present position and velocity information, and joining day information, route label, record in the FLASH memory device, this process is carried out repeatedly up to the end of job.

In the single-point position measurement, GPS receiver and wireless receiving module are regularly delivered to locating data, difference correction data among the MCU, after MCU determines present position, obtain mean place and the degree of convergence shows on liquid crystal display, finish up to measuring, result of a measurement stores in the FLASH memory device after can adding numbering, time.

Single-point and route survey data can upload to and carry out subsequent treatment in the PC.

This equipment is downloaded all railway lines in this operating area, soil retaining, caution target geographic position data from PC earlier before carrying out schedule job.In use, when being the attachment point of having stored, target directly imports the target code name, when target is the train that is parked on the railway line, the shunter measures and the target setting position at the target place earlier, return the operational vehicle place again and carry out schedule job, or hold this equipment in measuring position, target place by another people, and informing the dispatcher by interphone, the dispatcher imports target position data by hand and carries out schedule job then.After starting working, equipment regularly with the voice suggestion dispatcher to the distance of the place ahead target and whether road speed exceeds the speed limit and on liquid crystal display information such as the range of a signal speed of a motor vehicle, voice suggestion has certain lead according to the speed of a motor vehicle, guarantees and the conformability of actual distance; Write down running orbit, speed, temporal information simultaneously, it is for the record logout can be uploaded to PC behind one class of end-of-job.

When conducting transmission line is measured, apomecometer is fixed on the operational vehicle, the GPS receiving wire is positioned in the middle of two rails, the incoming line numbering begins to measure, vehicle moves repeatedly at the uniform velocity back and forth with 20 to 40 kilometers speed per hour, finish to measure and preserve data, upload the data in the PC at last and handle.

When doing the single-point position measurement, on menu, start this function, machine is placed on the tested point, stops to measure after seeing the data convergence, and read-out information or be saved in the machine upload the data in the PC at last.

The beneficial effects of the utility model are:

(1) easy to use, be worn on one's body during work and get final product, do not need complex operations such as aiming, utilize voice suggestion the place ahead distance and overspeed warning.

(2) be not subjected to the interference of bend, weather conditions.

(3) use differential mode to improve the GPS accuracy of positioning.

Description of drawings

Fig. 1 is the hand-held set composition frame chart;

Fig. 2 is a computational scheme length scheme drawing.

Wherein, 1. microcontroller MCU, 2.FLASH memory device, 3.GPS receiver, 4. LCDs, 5. wireless receiving module, 6. voice module, 7. data-interface, 8. keyboard, 9. battery.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

The utility model is made up of difference station and hand-held set, and wherein the difference station is its employing wireless mode broadcasting RTCM form DGPS difference correction information of computing machine; Hand-held set comprises microcontroller MCU1 as shown in Figure 1, and microcontroller MCU1 is connected with FLASH memory device 2, GPS receiver 3, keyboard 8, LCDs 4, wireless receiving module 5, voice module 6 and interface circuit 7 respectively;

Microcontroller MCU1 is data handing and control center, the data that its reception GPS receiver and wireless receiving module are sent here, determine position and speed that locomotive is current, finish distance calculation and running orbit record, by voice module prompting user distance velocity information, exchange with the user with LCDs by keyboard;

FLASH memory device 2 is preserved all railway lines in this operating area, soil retaining, caution target geographical location information, is used for writing down the running orbit and the speed data of train in the shunting service simultaneously;

GPS receiver 3 receives the data of gps satellite broadcasting, output geographic position, state of kinematic motion and temporal information;

LCDs 4 and keyboard 8 are interfaces of microcontroller MCU1 and user interactions, and the user operates this equipment by it;

Wireless receiving module 5 receives the DGPS difference correction information of difference station broadcasting, gives MCU, to improve the particularity and the stability of locating data;

Voice module 6 has speech-sound synthesizing function, is used for pointing out user the place ahead target range, the road speed information that whether exceeds the speed limit;

Data-interface 7 is used for connecting PC, the parameter of finishing the work setting, and program upgrade is downloaded geographic information data, the running orbit work of uploading record;

Battery 9 provides electric power for operation of entire equipment.

Principle of work of the present utility model and using method:

The shunting railway locomotives distance-finding method of apomecometer, its step is:

1) before carrying out schedule job, downloads all railway lines in this operating area, soil retaining, caution target geographic position data to apomecometer from PC earlier;

2) during operation, at first determine the position of target in beginning, when target is the attachment point of having stored, by classification searching or directly import the target code name, access the position data of storage;

If the place ahead is a transient target, earlier at target place single-point position-measuring functions, measure and the preservation target location, import target position data then, then import the running route numbering and carry out schedule job;

Under the situation that does not have the circulation line geodata, use the line walking function to gather track data, carry out operation with the interim track data of gathering;

3) after operation begins, equipment regularly with the voice suggestion dispatcher to the distance of the place ahead target with whether road speed exceeds the speed limit and information such as range of a signal speed of a motor vehicle on liquid crystal display, the voice suggestion time is then set the time quantum of reporting in advance according to the speed of a motor vehicle, the conformability of assurance and actual distance; Write down running orbit, speed, temporal information simultaneously, it is for the record logout can be uploaded to PC behind one class of end-of-job.

The acquisition of geographic position data is in the described step 1): railway line and soil retaining along the line, caution target geographic information data use apomecometer that circuit and single-point position are surveyed, in the interior FLASH memory device of the machine that is recorded in, uploading to PC again obtains after editing and processing, or utilize the data that have electronic chart, calibrated, format conversion obtains;

Every railway line and soil retaining along the line, caution target geographic information data carry out category index by station track, up-downgoing, goods yard, and add explanatory note, form data file and download in the hand-held set.

Described step 2) during the single-point position measurement, apomecometer is placed on the tested point in, by the time the reading convergence stops to measure after reaching accuracy requirement, and read-out information or add numbering and be saved in the machine, the take off data of preservation can upload in the PC.

Described step 2) the line walking function is gathered track data in, and the shunter carries apomecometer and makes an inspection tour object point by operation initial point road along the line and return initial point again, and the geographic information data of record circuit can be used for shunting service in machine.

Being defined as of described step 3) middle rolling car speed: railway line is represented with a series of linear portions, each line segment is represented with sequence number, end points coordinate, length, to the route segmentation time, the error of the length of each linear portion and its cooresponding actual path is controlled in the setting range, every iron leg route is made up of the data of numbering, text description, line segment sum and each line segment, all data download in the hand-held set after editing and processing on the PC is good;

Hand-held set is earlier with the target location, current location is mapped on the route of appointment with the road matching algorithm, then successively on the computational scheme current point to each line segment length sum between object point, be the distance that current locomotive will travel to target, concrete computation process is, with A on the route, the circuit of B point-to-point transmission is divided into a plurality of linear portions, the A point is in line segment 1, B is in line segment n, and the C point is the terminal point of line segment 1, and the D point is the starting point of line segment n, the latitude of four points, longitude is respectively: A (Lat1, Lon1), and B (Lat2, Lon2), C (Lat3, Lon3), and D (Lat4, Lon4), the length of m section linear portion is Lm, and AB point-to-point transmission operating range is:

$A\sqrt{{(\mathrm{lat}3-\mathrm{lat}1)}^2+{\left((\mathrm{lon}3-\mathrm{lon}1)\cos \left(\mathrm{lat}1\right)\right)}^2}+A\sqrt{{(\mathrm{lat}2-\mathrm{lat}4)}^2+{\left((\mathrm{lon}2-\mathrm{lon}4)\cos \left(\mathrm{lat}2\right)\right)}^2}+\underset{m=2}{\overset{n-1}{\mathrm{\Σ}}}{L}_m$

Constant A=111120 meter wherein are through the unit degree of being of, latitude.

Claims (1)

1. a shunting railway locomotives apomecometer is characterized in that, it is made up of difference station and hand-held set, and wherein the difference station is its employing wireless mode broadcasting DGPS difference correction information of computing machine; Hand-held set comprises microcontroller MCU, and microcontroller MCU is connected with FLASH memory device, GPS receiver, keyboard, LCDs, wireless receiving module, voice module and interface circuit respectively;

Microcontroller MCU is data handing and control center, the data that its reception GPS receiver and wireless receiving module are sent here, determine position and speed that locomotive is current, finish distance calculation and running orbit record, by voice module prompting user distance velocity information, exchange with the user with LCDs by keyboard;

The GPS receiver receives the data of gps satellite broadcasting, output geographic position, state of kinematic motion and temporal information;

Wireless receiving module receives the DGPS difference correction information of difference station broadcasting, gives MCU, to improve the particularity and the stability of locating data;

The FLASH memory device is preserved all railway lines in this operating area, soil retaining, caution target geographical location information, is used for writing down the running orbit and the speed data of train in the shunting service;

Voice module has speech-sound synthesizing function, is used for pointing out user the place ahead target range, the road speed information that whether exceeds the speed limit;

Keyboard and LCDs are the interfaces of microcontroller MCU and user interactions, and the user operates this equipment by it;

Data-interface is used for connecting PC, the parameter of finishing the work setting, and program upgrade is downloaded geographic information data, the running orbit work of uploading record;

Battery provides electric power for operation of entire equipment.

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