CN2181685Y - Long Gapless rail locking temp. measuring instrument for railway - Google Patents

Long Gapless rail locking temp. measuring instrument for railway Download PDF

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CN2181685Y
CN2181685Y CN 94201236 CN94201236U CN2181685Y CN 2181685 Y CN2181685 Y CN 2181685Y CN 94201236 CN94201236 CN 94201236 CN 94201236 U CN94201236 U CN 94201236U CN 2181685 Y CN2181685 Y CN 2181685Y
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resistance
output terminal
integrated circuit
pin
connect
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王岩
易大斌
李哲英
翟绪枝
朱彬青
夏雁岭
翟晓萍
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QINGDAO SIGNAL EQUIPMENT FACTORY QINGDAO RAILWAY BRANCH BUREAU
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QINGDAO SIGNAL EQUIPMENT FACTORY QINGDAO RAILWAY BRANCH BUREAU
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Abstract

The utility model relates to a long gapless rail locking temp. measuring instrument for railways, which is used for solving the problem that the locking temp. of the long gapless rail is difficult to measure. The utility model is provided with a temperature sensor, a magnetoelastic force sensor, a signal input front-end circuit whose input end is connected with the temperature sensor and the magnetoelastic force sensor, an A/D conversion circuit whose input end is connected with the output end of the signal input front-end circuit, an 8051 single chip computer circuit, a standard parallel tracer interface circuit, a keyboard display interface circuit, and a keyboard display circuit. The utility model is used for measuring the locking temp. of the long gapless rail, and the measuring precision is high. The test result can be printed and displayed by the utility model, and the operation of the utility model is simple.

Description

Long Gapless rail locking temp. measuring instrument for railway
The utility model relates to the tester of the seamless long rail fastening down temperature of a kind of measurement railway (0 stress point).
Railway is seamless, and long rail fastening down temperature is the significant data that railway department must grasp, and is the important evidence that summer, railway was safeguarded.The railway personnel can grasp exactly the seamless long rail fastening down temperature of the section of administering will directly influence the quality of railway track and jeopardize railway operation safety.At present, the test of seamless long rail fastening down temperature all is to rely on railway personnel's experience or do the sign observation on rail, this method and personnel's experience and sense of responsibility have very big correlativity, are difficult to accomplish find early rail morbid state, to the potential threat of traffic safety formation of railway.
Goal of the invention of the present utility model is a kind of tester that can measure the seamless long rail fastening down temperature of railway easily and accurately of design.
Goal of the invention of the present utility model is achieved in that the seamless long rail fastening down temperature measuring device of railway, and it has temperature sensor and magnetoelasticity force transducer.Its special character is, the standard that it also has the signal input front end circuit that input end and temperature sensor be connected with the magnetoelasticity force transducer, the A/D change-over circuit that input end is connected with the output terminal of signal input front end circuit, 8051 single chip circuits that are connected with the output terminal of A/D change-over circuit, be connected with 8051 single chip circuits walk abreast plotter interface circuit, keyboard and display interface circuit that is connected with 8051 single-chip microcomputers and the keyboard-display circuit that is connected with the keyboard and display interface circuit.Temperature sensor is an electric signal with the temperature transition of seamless long rail, and the magnetoelasticity force transducer is an electric signal with the stress transmission of seamless long guiding principle rail.Temperature signal and stress signal cushion, after amplification and the filtering, send into the A/D change-over circuit through signal input front end circuit.The A/D change-over circuit is finished the conversion of analog quantity to digital quantity under the control of 8051 single chip circuits, the digital quantity after the conversion is sent into 8051 single chip circuits and carried out computing.Data after 8051 single chip circuits are handled both can also can show output by display by the keyboard and display interface circuit by the parallel plotter interface circuit of standard by the form printout of plotter with curve and tables of data.Keyboard-display circuit mainly is made up of keyboard and display, and keyboard is used for importing various operational orders, and display is used for display command prompt and test result.
The utility model can be measured the locking temperature of seamless long rail exactly, the measuring accuracy height, and test result is not subjected to the influence of gauger's subjective factor.Its antijamming capability is strong, reliability is high, can print test result with curve and form intuitively, can directly read test result by display again, and is simple to operate.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Fig. 1 is a circuit block diagram of the present utility model, and as Figure of abstract.
Fig. 2 is the circuit diagram of signal input front end circuit.
Fig. 3 is the circuit diagram of the parallel plotter interface circuit of A/D change-over circuit, 8051 single chip circuits and standard.
Fig. 4 is the circuit diagram of keyboard and display interface circuit.
Fig. 5 is the circuit diagram of keyboard-display circuit.
Fig. 6 is temperature a--stress curve.
As shown in Figure 1, the utility model is made up of temperature sensor, magnetoelasticity force transducer, signal input front end circuit, A/D change-over circuit, 8051 single chip circuits, the parallel plotter interface circuit of standard, keyboard and display interface circuit and keyboard-display circuit.
As shown in Figure 2, signal input front end circuit comprises:
A, socket WT, it adopts two core sockets, and it is connected with the output terminal of temperature sensor, its 1 pin and resistance R 3An end connect;
B, homophase input buffer amplifier 1, it is by resistance R 3, resistance R 4, adjustable resistance P 1Form with integrated circuit (IC) 11:A.Integrated circuit (IC) 11:A adopts LM324, and its output terminal is connected with the input end of low-pass amplifier 2;
C, low-pass amplifier 2, it is by resistance R 5, resistance R 6, resistance R 7, resistance R 8, capacitor C 4, capacitor C 5Form with integrated circuit (IC) 11:B.Resistance R 5Be connected with the output terminal of integrated circuit (IC) 11:A.Integrated circuit (IC) 11:B adopts LM324, and its output terminal INO is connected with the IN-O end of A/D change-over circuit;
D, socket WF, it adopts 3 core sockets, and it is connected with the output terminal of magnetoelasticity force transducer, its 2 pin and resistance R 12An end and resistance R 20An end connect;
E, no temperature drift homophase input buffer amplifier 3, it is by resistance R 10, resistance R 11, resistance R 12, resistance R 13, integrated circuit (IC) 12:A and integrated circuit (IC) 12:B form.Integrated circuit (IC) 12:A and integrated circuit (IC) 12:B all adopt LM324.The output terminal of integrated circuit (IC) 12:B is connected with the input end of amplifier 4;
F, amplifier 4, it is by resistance R 14, resistance R 15, adjustable resistance P 2Form with integrated circuit (IC) 12:C.Resistance R 15An end be connected with the output terminal of integrated circuit (IC) 12:B.Integrated circuit (IC) 12:C adopts LM324, and its output terminal is connected with the input end of low-pass amplifier 5;
G, low-pass amplifier 5, it is by resistance R 16, resistance R 17, resistance R 18, resistance R 19, capacitor C 6, capacitor C 7Form with integrated circuit (IC) 12:D.Resistance R 16An end be connected with the output terminal of integrated circuit (IC) 12:C.Integrated circuit (IC) 12:D adopts LM324, its output terminal and resistance R A 1An end connect;
H, the anti-phase input buffer amplifier 6 of no temperature drift, it is by resistance R 20, resistance R 21, resistance R 22, resistance R 23, integrated circuit (IC) 13:A and integrated circuit (IC) 13:B form.Integrated circuit (IC) 13:A and integrated circuit (IC) 13:B all adopt LM324, and the output terminal of integrated circuit (IC) 13:B is connected with the input end of amplifier 7;
I, amplifier 7, it is by resistance R 24, resistance R 25, adjustable resistance P 3Form with integrated circuit (IC) 13:C.Resistance R 24An end be connected with the output terminal of integrated circuit (IC) 13:B.Integrated circuit (IC) 13:C adopts LM324, and its output terminal is connected with the input end of low-pass amplifier 8;
J, low-pass amplifier 8, it is by resistance R 26, resistance R 27, resistance R 28, resistance R 29, capacitor C 8, capacitor C 9Form with integrated circuit (IC) 13:D.Resistance R 26An end be connected with the output terminal of integrated circuit (IC) 13:C.Integrated circuit (IC) 13:D adopts LM324, its output terminal and resistance R A 2An end connect;
K, totalizer 9, it is by resistance R A 1, resistance R A 2Form with integrated circuit (IC) 11:C.Integrated circuit (IC) 11:C adopts LM324, its output terminal IN 1Be connected with the IN-1 end of A/D change-over circuit.
Signal from temperature sensor is sent into homophase input buffer amplifier 1 through socket WT.Homophase input buffer amplifier 1 is by regulating adjustable resistance P 1Can be used to determine the temperature initial value, overcome temperature drift simultaneously.Low-pass amplifier 2 is used for overcoming the high frequency interference that surrounding environment causes.Temperature signal is sent into the A/D change-over circuit after buffering, filtering.Stress signal is sent into no temperature drift homophase input buffer amplifier 3 through socket WF.No temperature drift homophase input buffer amplifier 3 is used for importing the normal stress signal, and amplifier 4 amplifies stress signal, and low-pass amplifier filters high-frequency interferencing signal.The anti-phase input buffer amplifier 6 of no temperature drift is used for importing the negative sense stress signal, amplifier 7 amplifies stress signal, low-pass amplifier filters high-frequency interferencing signal, and normal stress signal and negative sense stress signal are sent into the A/D change-over circuit by totalizer 9 after buffering, amplification, filtering.
As shown in Figure 3,8051 single chip circuits are by single-chip microcomputer IC 1, 8 latch IC 2, read-only memory IC 3, reading writing memory IC 4, 3-8 code translator IC 5With or door IC9:A, IC9:B, IC9:C, IC9:D form.Single-chip microcomputer IC 1Adopt 8051,8 latch IC 2Adopt 74LS373, read-only memory IC 3Adopt 2764, reading writing memory IC 4Adopt 6264,3-8 code translator IC 5Adopt 74LS138, or door IC9:A, IC9:B, IC9:C, IC9:D all adopt 74LS32; The A/D change-over circuit is by A/D converter IC 6, double D trigger IC 7Form with rejection gate IC8:A, IC8:B.A/D converter IC 6Adopt ADC0809, double D trigger IC 7Adopt 74LS74, rejection gate IC8:A and IC8:B all adopt 74LS02; The parallel plotter interface circuit of standard is by 8 latch IC 10Form 8 latch IC with 16 core socket PORT 10Adopt 74LS273.Read-only memory IC 3By address bus A 0, A 1A 12With data bus D 0, D 1D 7With single-chip microcomputer IC 1Connect reading writing memory IC 4By address bus A 0, A 1A 12With data bus D 0, D 1D 7With single-chip microcomputer IC 1Connect.By 8 latch IC 3The single-chip microcomputer IC that latchs 1P 0Low 8 address dates and single-chip microcomputer IC that mouth is sent 1P 2The most-significant byte address date that mouth is sent is formed 16 bit addressing data, can be to read-only memory IC 3With reading writing memory IC 4Carry out addressing.3-8 code translator IC 5Input end A, B, C be connected 3-8 code translator IC with high 3 of address bus respectively 5Y 0End and read-only memory IC 3Sheet choosing end CE and reading writing memory IC 4Sheet choosing end CS 1Connect.Or the door IC9:A two input ends respectively with single-chip microcomputer IC 1RD end and 3-8 code translator IC 5Y 1End connects, or the output terminal of door IC9:A is connected with the keyboard and display interface circuit by peripheral hardware control bus KBR.Or the door IC9:B two input ends respectively with single-chip microcomputer IC 1WR end and 3-8 translate device IC 5Y 2End connects, or the output terminal of door IC9:B is connected with the keyboard and display interface circuit by peripheral hardware control bus DS.Or the door IC9:C two input ends respectively with single-chip microcomputer IC 1WR end and 3-8 code translator IC 5Y 4End connects, or the output terminal of door IC9:C is connected with the keyboard and display interface circuit by peripheral hardware control bus SS.Or the door IC9:D two input ends respectively with single-chip microcomputer IC 1WR end and the IC of 3-8 code translator 5Y 3End connects, or the output terminal of door IC9:D is by peripheral hardware control bus PRTU and 8 latch IC 10CLK end connect.Two input ends of rejection gate IC8:A respectively with single-chip microcomputer IC 1WR end and 3-8 code translator IC 5And Y 7End connects, and the output terminal of rejection gate IC8:A is connected with the ALE of A/D converter end.Two input ends of rejection gate IC8:B respectively with single-chip microcomputer IC 1RD end and 3-8 code translator IC 5Y 7End connects, the output terminal of rejection gate IC8:B and A/D converter IC 6ENABLE end connect.A/D converter IC 6Input end IN-0 and IN-1 be connected A/D converter IC with IN1 with the output terminal IN0 of signal input front end circuit respectively 6Output terminal and data bus D 0, D 1D 7Connect.Double D trigger IC 7Output terminal Q and A/D converter IC 6CLOCK end connect double D trigger IC 7CLK end and single-chip microcomputer IC 1ALE end connect.8 latch IC 10D 1, D 2D 8The end respectively with data bus D 0, D 1D 7Connect 8 latch IC 10Output terminal Q 1, Q 2Q 8Respectively with 2,3 of 16 core socket PORT ... 9 pin connect.1 pin of 16 core socket PORT and 11 pin respectively with single-chip microcomputer IC 1P 11End and P 10End connects, 10,13,14,15,16 pin and the single-chip microcomputer IC of 16 core socket PORT 1RD end connect.
Single-chip microcomputer IC 1Be responsible for the data processing and the control of total system, its P 2Mouth is the most-significant byte of address bus, its P 0Mouth is the least-significant byte and the data line of address bus, address least-significant byte and data line time-sharing multiplex, read-only memory IC 3Be used for the storage program, reading writing memory IC 4Be used for stored data.The parallel plotter interface circuit of standard is connected with the PP-40 plotter.
As shown in Figure 4, the keyboard and display interface circuit is by 8 latch IC 14, 8 latch IC 15, driver IC 16, driver IC 17, eight digit buffer IC 18, current-limiting resistance R 30, R 31R 41, 10 pin twin-string socket PORT 1With 16 pin twin-string socket PORT 2Form.8 latch IC 14With 8 latch IC 15All adopt 74LS273, driver IC 16And driver IC 17All adopt DS75492, eight digit buffer IC 18Adopt 74LS244.8 latch IC 14Be that 7 segment encode display segments are selected buffer register, its D 1, D 2D 8The end respectively with data bus D 0, D 1D 7Connect, its CLK end is connected with peripheral hardware control bus SS; Driver IC 16Be segment driver, its 1A, 2A ... 6A respectively with 8 latch IC 14Q 1, Q 2Q 6End connects, its 1Y, 2Y ... 6Y end respectively with 16 pin twin- string socket PORT 28,7 ... 3 pin connect; 8 latch IC 15Be position choosing and keyboard row buffer register, its D 1, D 2D 6The end respectively with data bus D 0, D 1D 6Connect, its CLK end is connected with peripheral hardware control bus DS; Driver IC 17Be to show bit driver, its 1A, 2A end respectively with 8 latch IC 14Q 7, Q 8End connects, its 3A, 4A, 5A, 6A end respectively with 8 latch IC 15Q 1, Q 2, Q 3, Q 4End connects, and its 1Y, 2Y, 3Y, 4Y, 5Y, 6Y end are connected with 2,1,13,14,15,16 pin of 16 pin twin-string socket PORT respectively; Eight digit buffer IC 18For keyboard reads in impact damper, its 2Y 1, 2Y 2, 2Y 3, 2Y 4The end respectively with data bus D 0, D 1, D 3, D 4Connect, its 2G end is connected its 2A with peripheral hardware control bus KBR 1, 2A 2, 2A 3, 2A 4The end respectively with current-limiting resistance R 38, R 39, R 40, R 41An end and 10 pin twin- string socket PORT 110,9,8,7 pin connect current-limiting resistance R 38, R 39, R 40, R 41Other end ground connection; 10 pin twin- string socket PORT 11,2 ... 6 pin respectively with 8 latch IC 15Q 1, Q 2Q 6End connects; Current-limiting resistance R 30, R 31R 37An end respectively with 16 pin twin- string socket PORT 28,7 ... 1 pin connects, current-limiting resistance R 30, R 31... R 37The other end be connected with positive supply.
As shown in Figure 5, keyboard-display circuit is by four LED data pipe LD 0, LD 1, LD 2, LD 3, 2 * 4 keyboard U, U resets 1, 16 pin twin-string socket PORT 3With 10 pin twin-string socket PORT 4Form.Keyboard U and 10 pin twin-string socket PORT 4Connect 10 pin twin-string socket PORT 4By flat cable and twin-string socket PORT 1Connect; Reset key U 1Two ends respectively with 16 pin twin-string socket PORT 39 pin be connected with 10 pin; LED charactron LD 0, LD 1, LD 2, LD 3With 16 pin twin-string socket PORT 3Connect 16 pin twin-string socket PORT 3By flat cable and 16 pin twin-string socket PORT 2Connect.
The meaning of each key of 2 * 4 keyboard U is: line unit, DW test Pause key on TEST test function key, the RUP reading, line unit, PRT printing key, ST instrument self-correcting key, TL thermometer function key under CR ESC Escape, the RDO reading.
Software of the present utility model comprises watchdog routine, data acquisition subroutine, calculates determining program and shows print routine.During use, at first magnetoelasticity force transducer and temperature sensor are attached at the rail outside.After turning on the power switch, press instrument self-correcting key ST, the initial value of stress is placed 0, year, month, day, the beginning Measuring Time during then with the keyboard input measurement and finish the mileage points of Measuring Time and test.When pressing test function key TEST, instrument begins to measure, and temperature signal and stress signal are sent into the A/D change-over circuit through signal input front end circuit, send into 8051 single chip circuits and carry out data processing after the conversion of A/D change-over circuit.8051 single chip circuits are (during rising 0.5C) collection stress signal when temperature signal just changes only, when temperature rising 0.5C, then shows the measured value of a relative stress.Pass through if any train in the measuring process, can press test Pause key DW, suspend and measure.(Measuring Time should comprise the time when temperature is the highest in one day) presses ESC Escape CR after measurement after a while, stops to measure.Carry out measurement result after the data processing through 8051 single chip circuits, can press on the reading that line unit RDO reads under the line unit RUP and reading, also can press printing key PRT, draw by plotter, print curve as shown in Figure 6, can find out the locking temperature of seamless long rail by Fig. 6 curve.

Claims (5)

1, railway is seamless long rail fastening down temperature measuring device, it has temperature sensor and magnetoelasticity force transducer, it is characterized in that it also has input end and imports front end circuit with the signal that temperature sensor is connected with the magnetoelasticity force transducer, the A/D change-over circuit that input end is connected with the output terminal of signal input front end circuit, 8051 single chip circuits that are connected with the output terminal of A/D change-over circuit, the standard that is connected with the 8051 single chip circuits plotter interface circuit that walks abreast, keyboard and display interface circuit that is connected with 8051 single-chip microcomputers and the keyboard-display circuit that is connected with the keyboard and display interface circuit.
According to the seamless long rail fastening down temperature measuring device of the described railway of claim 1, it is characterized in that 2, signal input front end circuit comprises:
A, socket (WT), it adopts two core sockets, and it is connected with the output terminal of temperature sensor, and its (1) pin is connected with an end of resistance (R);
B, homophase input buffer amplifier (1), it is by resistance (R 3), resistance (R 4), adjustable resistance (P 1) and integrated circuit (IC11:A) composition, integrated circuit (IC11:A) adopts LM324, and its output terminal is connected with the input end of low-pass amplifier (2);
C, low-pass amplifier (2), it is by resistance (R), resistance (R 6), resistance (R 7), resistance (R 3), electric capacity (C 4), electric capacity (C 5) and integrated circuit (IC11:B) composition, resistance (R 5) be connected with the output terminal of integrated circuit (IC11:A), integrated circuit (IC11:B) adopts LM324, and its output terminal (IND) is connected with (IN-O) end of A/D change-over circuit;
D, socket (WF), it adopts 3 core sockets, and it is connected with the output terminal of magnetoelasticity force transducer, its (2) pin and resistance (R 10) an end and resistance (R 20) connect;
E, no temperature drift homophase input buffer amplifier (3), it is by resistance (R 10), resistance (R 11), resistance (R 12), resistance (R 13), integrated circuit (IC12:A) and integrated circuit (IC12:B) form, integrated circuit (IC12:A) and integrated circuit (IC12:B) all adopt LM324, the output terminal of integrated circuit (IC12:B) is connected with the input end of amplifier (4);
F, amplifier (4), it is by resistance (R 14), resistance (R 15), adjustable resistance (P 2) and integrated circuit (IC12:C) composition, resistance (R 15) an end be connected with the output terminal of integrated circuit (IC12:B), integrated circuit (IC12:C) adopts LM324, its output terminal is connected with the input end of low-pass amplifier (5);
G, low-pass amplifier (5), it is by resistance (R 16), resistance (R 17), resistance (R 18), resistance (R 19), electric capacity (C 6), electric capacity (C 7) and integrated circuit (IC12:D) composition, resistance (R 16) an end be connected with the output terminal of integrated circuit (IC12:C), integrated circuit (IC12:D) adopts LM324, its output terminal and resistance (RA 1) an end connect;
H, the anti-phase input buffer amplifier of no temperature drift (6), it is by resistance (R 20), resistance (R 21), resistance (R 22), resistance (R 23), integrated circuit (IC13:A) and integrated circuit (IC13:B) form, integrated circuit (IC13:A) and integrated circuit (IC13:B) all adopt LM324, the output terminal of integrated circuit (IC13:B) is connected with the input end of amplifier (7);
I, amplifier (7), it is by resistance (R 24), resistance (R 25), adjustable resistance (P 3) and integrated circuit (IC13:C) composition, resistance (R 24) an end be connected with the output terminal of integrated circuit (IC13:B), integrated circuit (IC13:C) adopts LM324, its output terminal is connected with the input end of low-pass amplifier (8);
J, low-pass amplifier (8), it is by resistance (R 26), resistance (R 27), resistance (R 28), resistance (R 29), electric capacity (C 8), electric capacity (C 9) and integrated circuit (IC13:D) composition, resistance (R 26) an end be connected with the output terminal of integrated circuit (IC13:C), integrated circuit (IC13:D) adopts LM324, its output terminal and resistance (RA 2) an end connect;
K, totalizer (9), it is by resistance (RA 1), resistance (RA 2) and integrated circuit (IC11:C) composition, integrated circuit (IC11:C) adopts LM324, and its output terminal (IN1) is connected with (IN-1) end of A/D change-over circuit.
3,, it is characterized in that 8051 single chip circuits are by single-chip microcomputer (IC according to claim 1 or require the seamless long rail fastening down temperature measuring device of 2 described railways 1), 8 latch (IC 2), read-only memory (IC 3), reading writing memory (IC 4), 3-8 code translator (IC 5) and or door (IC9:A), (IC9:B), (IC9:C), (IC9:D) form single-chip microcomputer (IC 1) 8051,8 latch (IC of employing 2) employing 74LS373, read-only memory (IC 3) adopt 2764, reading writing memory (IC 4) adopt 6264,3-8 code translator (IC 5) employing 74LS138; Or door (IC9:A), (IC9:B), (IC9:C), (IC9:D) all adopt 74LS32; The A/D change-over circuit is by A/D converter (IC 6), double D trigger (IC 7) and rejection gate (IC8:A), (IC8:B) form A/D converter (IC 6) employing ADC0809, double D trigger (IC 7) adopting 74LS74, rejection gate (IC8:A) and rejection gate (IC8:B) all adopt 74LS02; The parallel plotter interface circuit of standard is formed 8 latch (IC by 8 latchs (IC10) and 16 core sockets (PORT) 10) employing 74LS273, read-only memory (IC 3) by address bus (A 0), (A 1) ... (A 12) and data bus (D 0), (D 1) ... (D 7) and single-chip microcomputer (IC 1) connect read-write memory (IC 4) by address bus (A 0), (A 1) ... (A 12) and data bus (D 0), (D 1) ... (D 7) be connected with single-chip microcomputer, by 8 latch (IC 2) single-chip microcomputer (IC that latchs 1) (P 0) mouthful the least-significant byte address bus and the single-chip microcomputer (IC that send 1) (P 2) the most-significant byte address bus sent of mouth forms 16 bit addressing address buss, can be to read-only memory (IC 3) and reading writing memory (IC 4) carry out addressing, 3-8 code translator (IC 5) input end (A), (B), (C) be connected with high 3 of address bus respectively; 3-8 code translator (IC 5) (Y 0) end and read-only memory (IC 3) sheet choosing end (CE) and reading writing memory (IC 4) sheet choosing end (CS 1) connect, or two input ends of door (IC9:A) respectively with single-chip microcomputer (IC 1) (RD) end and 3-8 code translator (IC 5) (Y 1) end connects, or the output terminal of door (IC9:A) is connected with the keyboard and display interface circuit by peripheral hardware control bus (KBR), or two input ends of (IC9:B) respectively with single-chip microcomputer (IC 1) (WR) end and 3-8 code translator (IC 5) (Y 2) end connects, or the output terminal of door (IC9:B) is connected with the keyboard and display interface circuit by peripheral hardware control bus (DS), or two input ends of (IC9:C) respectively with single-chip microcomputer (IC 1) (WR) end and 3-8 code translator (IC 5) (Y 4) end connects, or the output terminal of door (IC9:C) is connected with the keyboard and display interface circuit by peripheral hardware control bus (SS), or two input ends of (IC9:D) respectively with single-chip microcomputer (IC 1) (WR) end and 3-8 code translator (IC 5) (Y 3) end connects, or the output terminal of door (IC9:D) is by peripheral hardware control bus (PRTU) and 8 latch (IC 10) (CLK) end connect, two input ends of rejection gate (IC8:A) respectively with single-chip microcomputer (IC 1) (WR) end and 3-8 code translator (IC 5) (Y 7) end connects, the output terminal of rejection gate (IC8:A) is held with (ALE) of A/D converter and is connected, two input ends of rejection gate (IC8:B) respectively with single-chip microcomputer (IC 1) (RD) end and 3-8 code translator (IC 6) (Y 7) the end connection, the output terminal of rejection gate (IC8:B) and A/D converter (IC 0) (ENABLE) end connect A/D converter (IC 0) input end (IN-0) and (IN-1) be connected A/D converter (IC with (IN1) with the output terminal (IN0) of signal input front end circuit respectively 0) output terminal and data bus (D 0), (D 1) ... (D 7) connect double D trigger (IC 7) output terminal (Q) and A/D converter (IC 6) (CLOCK) end connect double D trigger (IC 7) (CLK) end with single-chip microcomputer (IC 1) (ALE) end connect 8 latch (IC 10) (D 1), (D 2) ... (D 8) end respectively with data bus (D 0), (D 1) ... (D 7) connect 8 latch (IC 10) output terminal (Q 1), (Q 2) ... (Q 8) respectively with (2), (3) of 16 core sockets (PORT) ... (9) pin connects, (1) pin of 16 core sockets (PORT) and (11) pin respectively with single-chip microcomputer (IC 1) (P 11) end and (P 10) the end connection, (10) of 16 core sockets (PORT), (13), (14), (15), (16) pin and single-chip microcomputer (IC 1) (RD) end connect.
4, according to the seamless long rail fastening down temperature measuring device of the described railway of claim 3, it is characterized in that the keyboard and display interface circuit is by 8 latch (IC 14), 8 latch (IC 15), driver (IC 16), driver (IC 17), eight digit buffer (IC 18), current limliting electricity group (R 30), (R 31) ... (R 41), 10 pin twin-string socket (PORT 1) and 16 pin twin-string socket (PORT 2) form 8 latch (IC 14) and 8 latch (IC 15) all adopt 74LS273, driver (IC 16) and driver (IC 17) all adopt DS75492, eight digit buffer (IC 18) employing 74LS244,8 latch (IC 14) be that 7 segment encode display segments are selected buffer register, its (D 1), (D 2) ... (D 8) end respectively with data bus (D 0), (D 1) ... (D 7) connect, its (CLK) end is connected with peripheral hardware control bus (SS); Driver (IC 16) be segment driver, its (1A), (2A) ... (6A) end respectively with 8 latch (IC 14) (Q 1), (Q 2) ... (Q 6) the end connection, its (1Y), (2Y) ... (6Y) end respectively with 16 pin twin-string socket (PORT 2) (8), (7) ... (3) pin connects; 8 latch (IC 15) be position choosing and keyboard row buffer register, its (D 1), (D 2) ... (D 6) end respectively with data bus (D 0), (D 1) ... (D 5) connect, its (CLK) end is connected with peripheral hardware control bus (DS); Driver (IC 17) for showing bit driver, its (1A), (2A) end respectively with 8 latch (IC 14) (Q 7), (Q 8) end connects, its (3A), (4A), (5A), (6A) end respectively with 8 latch (IC 15) (Q 1), (Q 2), (Q 3), (Q 4) end connects, its (1Y), (2Y), (3Y), (4Y), (5Y), (6Y) end respectively with 16 pin twin-string socket (PORT 2) (2), (1), (13), (14), (15), (16) pin connect; Eight digit buffer (IC 18) for keyboard reads in impact damper, its (2Y 1), (2Y 2), (2Y 3), (2Y 4) end respectively with data bus (D 0), (D 1), (D 2) (D 3) connect, its (2G) end is connected its (2A with peripheral hardware control bus (KBR) 1), (2A 2), (2A 3), (2A 4) end respectively with current-limiting resistance (R 38), (R 39), (R 40), (R 41) an end and 10 pin twin-string socket (PORT 1) (10), (9), (8), (7) pin connect current-limiting resistance (R 38), (R 39), (R 40), (R 41) other end ground connection; 10 pin twin-string socket (PORT 1) (1), (2) ... (6) pin respectively with 8 latch (IC 15) (Q 1), (Q 2) ... (Q 6) the end connection; Current-limiting resistance (R 30), (R 31) ... (R 37) an end respectively with 16 pin twin-string socket (PORT 2) (8), (7) ... (1) pin connects, current-limiting resistance (R 30), (R 31) ... (R 37) the other end be connected with positive supply.
According to the long rail fastening down temperature measuring device of the described railway of claim 4, it is characterized in that 5, keyboard-display circuit is by four LED charactron (LD 0), (LD 1), (LD 2), (LD 3), 2 * 4 keyboards (U), reset key (U 1), 16 pin twin-string socket (PORT 3) and 10 pin twin-string socket (PORT 4) form keyboard (U) and 10 pin twin-string socket (PORT 4) connect 10 pin twin-string socket (PORT 4) by flat cable and 10 pin twin-string socket (PORT 1) connect; Reset key (U 1) two ends respectively with 16 pin twin-string socket (PORT 3) (9) pin be connected with (10) pin; LED charactron (LD 0), (LD 1), (LD 2), (LD 3) and 16 pin twin-string socket (PORT 3) connect 16 pin twin-string socket (PORT 3) by flat cable and 16 pin twin-string socket (PORT 2) connect.
CN 94201236 1994-01-13 1994-01-13 Long Gapless rail locking temp. measuring instrument for railway Expired - Fee Related CN2181685Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 94201236 CN2181685Y (en) 1994-01-13 1994-01-13 Long Gapless rail locking temp. measuring instrument for railway

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 94201236 CN2181685Y (en) 1994-01-13 1994-01-13 Long Gapless rail locking temp. measuring instrument for railway

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CN2181685Y true CN2181685Y (en) 1994-11-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102877385A (en) * 2012-10-16 2013-01-16 哈尔滨安通测控技术开发有限公司 Measurement device and measurement method of jointless track steel rail zero-stress rail temperature

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102877385A (en) * 2012-10-16 2013-01-16 哈尔滨安通测控技术开发有限公司 Measurement device and measurement method of jointless track steel rail zero-stress rail temperature
CN102877385B (en) * 2012-10-16 2015-04-22 哈尔滨安通测控技术开发有限公司 Measurement method of jointless track steel rail zero-stress rail temperature of a measurement device

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