CN2466727Y

CN2466727Y - Locomotive running monitoring simulator table for teaching purpose

Info

Publication number: CN2466727Y
Application number: CN 01208633
Authority: CN
Inventors: 杨洪民
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-27
Filing date: 2001-02-27
Publication date: 2001-12-19
Anticipated expiration: 2011-02-27

Abstract

The utility model discloses a locomotive running monitoring simulator table for a teaching purpose. The utility model is mainly composed of a steering control map board, a demonstration sand table, a single-board computer, a locomotive speed generator, a ground signal generator, a locomotive model, etc., wherein, the locomotive speed generator is composed of a speed governing rotary knob and a rotary potentiometer which is fixed on the same shaft of the speed governing knob, a position signal of the rotary knob is converted to a voltage signal by the potentiometer and is sent to the single-board computer by a speed detection circuit, after the voltage signal is processed by the single-board computer, the voltage signal provides a current drive signal of corresponding power to a direct current motor of the locomotive model on the sand map by a locomotive driving circuit, and the running speed of the locomotive model is controlled.

Description

Railway locomotive operation monitoring teaching platform

The utility model relates to the teaching equipment of a kind of training, the relevant locomotive operation monitor device operation of examination railway locomotive steward.

At present, main-line locomotive has been equipped " LKJ-93 operation monitoring device " successively in the road, help and supervision steward safety, drive locomotive efficiently and finish the train traction task, the core of its work is supervision, the road speed of control locomotive, prevent that serious driving accidents such as hypervelocity and overrun a signal from appearring in train, because will gather the travel speed of locomotive and the information such as open state of ground signal at any time in the work of operation monitoring device, and its operating principle is closely related with locomotive speed again, so existing " operation monitoring testing table " all taken the locomotive speed signal generator, the specialized equipment that ground signal state receiver etc. are complicated and expensive, perhaps directly on the locomotive of normal operation, finish training and examination task, have a strong impact on the normal operation of locomotive, take the precious resources of locomotive, the utilization cost is very high, and teaching efficiency is also undesirable.

The purpose of this utility model is: a kind of locomotive operation of simulating is provided, and can set in advance the various running statuses of locomotive, the operation monitoring device teaching demonstration equipment that can work independently, it not only can initiatively be provided with and simulate locomotive in varying environment, various running statuses under the unlike signal instruction, and can also send alerting signal in advance and point out, make the steward in the classroom, just can learn correct working specification.

A kind of railway locomotive operation monitoring of the utility model teaching platform, comprise and handle the control chart board, the demonstration sand table, single card microcomputer, locomotive speed generator and ground signal generator, model locomotive etc., described locomotive speed generator is made up of speed governing knob and co-axially fixed with it rotational potentiometer, converts the position signalling of knob to voltage signal by potentiometer.Flow to single card microcomputer by velocity checking circuits, after single card microcomputer was handled, by the locomotive drive circuit, the direct current generator of the model locomotive on sand table provided the current drive signal of corresponding power, the gait of march of controller vehicle model.

The utility model has the advantages that: use single card microcomputer technology and corresponding speed signal generator, the ground signal generator, the operate as normal of simulation " operation monitoring device ", realize that it does not take the teaching of locomotive resource, demonstration, examination task, be convenient to be provided with various common catastrophic failures, strengthened teaching efficiency, the level of integrated system height, be convenient to safeguard that use cost is low.

Now for embodiment and be described with reference to the accompanying drawings as follows:

The utlity model has following accompanying drawing:

Fig. 1, manipulation control chart board schematic appearance;

Fig. 2, demonstration sand table partial schematic diagram;

Fig. 3, speed governing knob and potentiometer installation diagram;

Fig. 4, the utility model circuit theory diagrams;

Export to the display screen of handling on the control chart board 12 referring to the operation monitoring shows signal that produces after Fig. 1, single card microcomputer 17 dry runs and produce shows signal, remind the steward to note the speed of a motor vehicle, input parameter or enforcement unlocking operation, steward's unlocking operation can be finished by release keyboard 3, and speed governing knob 5 and potentiometer 12 are by nut 13,15 coaxial being fixed on the panel 14 of handling the control chart board (referring to Fig. 3).Figure 2 shows that the part of demonstration sand table 7, ground signal 8 on it is electrically connected with single card microcomputer by serial ports display circuit 18, one vehicle-mounted magnetic signal generator 10 is arranged on the model locomotive 9, with a direct current generator 11, direct current generator 11 is by wheel 16, track 26 is electrically connected with locomotive drive circuit 22, as shown in Figure 4, D1-the D18 of serial ports display circuit 18 is a charactron, be installed on the panel of handling the control chart board and export displaying symbol, XH1-XH16 is green, red, yellow diode, the signal lamp that is used for ground signal 8, in the velocity checking circuits 19, potentiometer 12 1 terminations+5V power supply, other end ground connection, middle output terminal is electrically connected with the INO of the analog signal detection mouth 0809 of single card microcomputer, and when rotating speed governing knob 5, potentiometer can be exported one between 0 arriving+voltage signal of 5V at middle output terminal, this signal is detected the speed that mouthful to convert a digital signal to be locomotive driving by the single card microcomputer analog quantity, uses for single card microcomputer.Ground signal generation circuit 25 is made up of one group of ship type switch and pull-up resistor, K1-K12 is a ship type switch, the one end ground connection other end is electrically connected with PA, PBO that the switching value of single card microcomputer detects mouthful 8255A7, when switch disconnected, the corresponding detected value of single card microcomputer was drawn on the pull-up resistor to be high level; When switch closure, the corresponding detecting position of single card microcomputer obtains low level, K1 to K12 is relatively independent, can produce 12 road signals at most, wherein six the tunnel be combined into the ground signal generator, formation ground signal is the signal condition of red light, green light, amber light or two amber lights, and other six the road are defined as fault signal generator, can be used to demonstrate special operation condition by the fault condition that it is provided with system.

The teacher by the ground signal on the chart board panel 14 be provided with switches set 6 set ground signal for two amber lights after, single card microcomputer 17 reads the following processing that this signal is made by the detection mouth that links to each other with ground signal generation circuit 25; 1. send drive signal by serial ports display circuit 18, light two yellow light-emitting diodes of relevant position, make ground signal be shown as two amber lights.2. drive phonetic function plate 20 and send voice suggestion " two amber light side lines enter the station, 46 kilometers of outlet speed limits ".3. by interface track switch driving circuit 21 is moved, change the rail switch position and be a side line that enters the station.

2. the student angle position of regulating speed governing knob 5, potentiometer changes, and the detection mouth of single card microcomputer promptly obtains a corresponding signal from velocity checking circuits 19, after the single card microcomputer decoding, produces vehicle speed signal V.This signal causes the following action of system: 1. single card microcomputer is lighted charactron 18 by serial line interface, goes out vehicle speed value at display screen 2 corresponding to the position display of the speed of a motor vehicle.2. export the current signal of a corresponding dutycycle by the PAO of analog output interface circuit 8255A5, drive the direct current generator 11 that is electrically connected with it, hauling engine is to advance with the corresponding speed of vehicle velocity V.The student can adjust the pace that knob can change the model locomotive in experiment in the presentation process at any time.

The student also can be by input release keyboard 3, fault is provided with switches set 4, ground signal is provided with switches set 6 to system input signal, is electrically connected with single card microcomputer by ground signal generation circuit 25, and its button value is read the back decoding by the PA mouth of 8255 (A6), PB mouth and uses.

Simulate in the driving process the student, the student can rotate the speed governing knob and change road speed YXV, and system base area and signal condition, calculate driving maximum speed limit XZV, when student's misoperation caused YXV more than or equal to XZV, system triggers " row uses incident " was moved as follows: 1. play voice " enforcement automatic stop " on the phonetic function plate, 2. be zero low level at locomotive drive circuit output duty cycle, the model locomotive is halted.

In Fig. 4, parking stall measure circuit 24 is made up of the tongue tube of burying underground under the sand table track, and when model locomotive passed through, tongue tube received vehicle-mounted magnetic signal, to low pulse of single card microcomputer output, sends the parking stall signal to system.

Claims

1. railway locomotive operation monitoring teaching platform, comprise and handle control chart board (1), demonstration sand table (7), single card microcomputer (17), locomotive speed generator and ground signal generator, model locomotive (9) etc., it is characterized in that: described locomotive speed generator is made up of speed governing knob (5) and co-axially fixed rotational potentiometer (12), potentiometer (12) one termination powers in the velocity checking circuits (19), other end ground connection, middle output terminal is electrically connected with the INO of the analog signal detection mouth 0809 of single card microcomputer, ground signal generation circuit (25) is made up of one group of ship type switch and pull-up resistor, ship type switch one end ground connection, the switching value of an other end and single card microcomputer detects the PA of mouthful 8255A7, PBO is electrically connected.

2. railway locomotive operation monitoring teaching platform according to claim 1, it is characterized in that: a vehicle-mounted magnetic signal generator (10) and a direct current generator (11) are arranged on the model locomotive (9), and direct current generator (11) is electrically connected with locomotive drive circuit (22) by wheel (16) track (26).