CN110456103A - Hand-held locomotive photoelectric sensor emulates detector - Google Patents
Hand-held locomotive photoelectric sensor emulates detector Download PDFInfo
- Publication number
- CN110456103A CN110456103A CN201810428770.4A CN201810428770A CN110456103A CN 110456103 A CN110456103 A CN 110456103A CN 201810428770 A CN201810428770 A CN 201810428770A CN 110456103 A CN110456103 A CN 110456103A
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- locomotive
- photoelectric sensor
- held
- detector
- hand
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
- G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/008—Testing of electric installations on transport means on air- or spacecraft, railway rolling stock or sea-going vessels
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention of " hand-held locomotive photoelectric sensor emulates detector ", it is mainly used in railway locomotive maintenance, for emulating and detecting locomotive photoelectric sensor, it can be convenient live on-bne repair, detection locomotive photoelectric sensor and provide the various electronic devices of speed signal work by photoelectric sensor, the quick positioning failure place of energy, reduce locomotive unattended time, improve the detection means of locomotive operation, locomotive maintenance efficiency and reliability is improved, meets live locomotive inspection and repair and produces actual needs.
Description
Technical field
Present invention is mainly applied to railway locomotive maintenance.
Background technique
Locomotive photoelectric sensor (referred to as: velocity sensor) is used to the vehicle-mounted detection of monitor, EEF bogie on locomotive
Device, the anti-devices such as slow warning device, flange lubricator, speedometer, interim process control of speeding provide locomotive speed signal, if above-mentioned
Device breaks down, locomotive when being put in storage maintenance, because can not operating condition on simulated locomotive route when high-speed cruising, so can only tear open
Lower associated components are tested on Special test platform, are overhauled, can only be with warp (as row is repaired) in the case where no test situation
Replacement associated components are tested, not only low efficiency, but also not can guarantee failure can in time, reliably exclude.Therefore, " hand-held locomotive
The development of photoelectric sensor emulation detector " (referred to as: emulation detector), can live on-bne repair, detection speed biography
Sensor and the various electronic devices to be worked by velocity sensor offer speed signal, improve locomotive maintenance efficiency and reliability.
There was similar products development in early stage market, had signal simulation ability, but function is not perfect, inconvenient to use.This
Product functionally includes 1. copying: 4 multi-channel output signals of simulation velocity sensor simultaneously, while detecting locomotive and mentioning
The voltage and load capacity of power supply source.2. detection function: detection 4 multi-channel output signals of velocity sensor, while detecting locomotive
Velocity sensor operating voltage and electric current.
Summary of the invention
The emulation detector can fit detection velocity sensor performance in locomotive upper mold.It is mainly by charging module, charging
Interface, power conversion module, lithium battery, velocity simulation and detection unit, velocity test unit, digital voltmeter, digital current
The composition such as table, digital speed table, function switch and interface.
Technological difficulties: emulation detector first has to do experiment platform use (debugging spare unit) in electric appliance group workplace, while again
Meet scene in the daily utilization of locomotive and uses (judging failure).Meet live requirement, it is same functional requirement should to be completed
When with easy to carry again, that is to say, that emulation detector volume wants small, therefore in emulation detector project overall appearance and again
When amount design, carried out fully around this thought.Key technology has: 1. for make locomotive static (stoppings) simulated locomotive dynamically
(operation), it is necessary to which design uses locomotive speed signal emulation testing technology.2. for convenience of field application, according to locomotive inspection and repair reality
The needs of situation, can be on locomotive as the strong assistant for judging failure, and miniaturization must be designed to, hold by emulating detector
Formula.3. damage to prevent locomotive high-voltage power supply from generating instrument and in use high-voltage electricity wound caused by personnel
Evil, it is necessary to take circuit isolation technology.4. instrument internal is needed from charged pool, but in testing to meet portability requirements
Voltage, it is necessary to power supply needed for being generated using power inverter technology.5. judging for convenience of locomotive failure, maintenance level and effect are improved
Rate, instrument are needed using online measuring technique.
Technical characterstic:
1, hand-held, it is small in size, convenient for being used in teams and groups or scene；
2, self-powered, it can charge repeatedly；
3, multiple functional, velocity sensor emulation can not only be completed, moreover it is possible to complete velocity sensor detection；
4, speed adjustable range is big, and precision is high；
5, using circuit isolation, safeguard measure, safety is good；
6, good appearance, exquisiteness, firm；
7, extend cable to fix using magnetic mode, it is easy to use.
Technical parameter:
1. operating voltage: lithium battery 12V2.2AH, 8.0~12.6V of voltage range, maximum current 0.4A；
2. output voltage: 15V ± 5%, maximum power 3W；
3. analog rate: not less than 120 kilometers/hour, (wheel footpath is averaged as 1012mm, velocity error ± 4%.)；
4. analog rate exports pulse: square wave high level >=12V, low level≤2V(load resistance RL=3k Ω)；
Export square-wave waveform duty ratio 50% ± 10%；Electric current < 100mA；
5. speed signal input impedance: >=3k Ω；
6. simulated locomotive loads (each channel): 0.75W；
7. overall dimensions: 160mm*114mm*33mm；
8. weight: 0.6Kg.
The beneficial effect of emulation detector is: in locomotive failure maintenance process, can be convenient live on-bne repair, inspection
The various electronic devices surveying velocity sensor and being worked by velocity sensor offer speed signal, the quick positioning failure place of energy,
Locomotive unattended time is reduced, the perfect detection means of locomotive operation improves locomotive maintenance efficiency and reliability, to generate
Good Social benefit and economic benefit.
Detailed description of the invention
Fig. 1 is simulating and testing instrument principle function block diagram
Fig. 2 is simulating and testing instrument circuit diagram
Fig. 3 is simulating and testing instrument circuit boundary dimension figure
Fig. 4 is simulating and testing instrument circuit shape pictorial diagram
The working principle of the invention is described further to conjunction attached drawing below.
1. power-supply system power-supply system be mainly used to for emulation detector internal circuit and velocity sensor provide it is satisfactory
Power supply, while emulation detector internal cell charging can be completed.Mainly by built-in lithium battery, power switch, charging interface, power supply
The composition such as converter, circuit protecting element.Each component function is described as follows:
P1: lithium battery interface connects internal lithium battery, powers for circuit board；
CZ: charging interface, external special charging module, to lithium battery charging inside emulation detector；
RT1: self- recoverage insurance prevents the short circuit of emulation detector and overcurrent；
S1: power switch, three positions.Disconnected position (among handle), emulation detector power-off；Power supply position (handle is to the left), emulation inspection
Survey the work of instrument power transmission；Charge position (handle is to the right), emulation detector charging；
LED0: emulation detector charging orange indicating light, R0 is LED0 current-limiting resistance；
LED1: emulation detector working power green indicator light, R1 are LED1 current-limiting resistance；
C1: decoupling capacitor；
DC-DC1: direct current 12V is transformed into direct current 15V by power inverter module, provides the stabilized power supply of needs for emulation detector
And buffer action；
C2: low frequency filtering capacitor；
C3: high-frequency filter capacitor reduces the interference of DC-DC1 ripple；
2. velocity simulation detection system velocity simulation test macro is mainly used to analog simulator vehicle locomotive speed signal, pass through
Switch control simulation velocity signal is generated and is interrupted, and is formed comprising two parts: speed signal artificial circuit and speed signal detection
Circuit.Mainly by channel selection switch, functional select switch, 555 chips constitute signal generator, LM2917 chip is constituted F/
The composition such as V FV convertor, digital speed table.Each component function is described as follows:
J0: emulation testing interface connects locomotive circuit and velocity sensor by private cable；
S2:4 selects 1 channel selection switch, for selecting the speed signal channel for needing to emulate and detect；
S3: for functional select switch, three positions.Disconnected position (among handle) it is completely disconnected to emulate detector and locomotive, photoelectric sensor
It opens；Check bit (handle is to the right) connects photoelectric sensor, for detecting velocity sensor output speed signal and work electricity
Pressure, electric current；It emulates position (handle is to the left), conveys locomotive speed signal to locomotive circuit, while detecting locomotive and the electricity of power supply is provided
Pressure and load capacity.
LED2: emulation detector simulation work blue indicator light, R2 are LED2 current-limiting resistance；
LED3: emulation detector test work white indicating light, R3 is LED3 current-limiting resistance；
R15: analog rate sensor load；
IC1, IC2 are square-wave generator core, simulation velocity sensor output signal；
W3, R7, C5: square wave output duty cycle is adjusted；
IC1, IC2, C4, D3, D4, W2: square-wave oscillator circuit；
D3, D4 are IC2 protection diode and the increase low velocity linearity；
W2: adjustable square wave highest frequency output；
C4: charge and discharge capacitance；
C6, C7: for IC1 power supply high and low frequency filter capacitor；
IC2, W1, R4, R5, D5, D6 are that square wave frequency adjusts circuit；.
R5, D5, D6: it improves frequency adjusting and starts to control a little；
R6: reset terminal pull-up resistor；
R8: for the output of simulation velocity waveform current limliting；
W1: speed adjusts potentiometer；
The connectivity port J1:W1；
P2: to test the connectivity port table M1；
M1: for voltage, electric current dual display number table, locomotive power supply load and the detection of speed sensor circuit working condition are completed；
3. speed testing system speed testing system is used to detect simulation velocity signal and velocity sensor speed, use
Speedometer M2 shows locomotive speed value.Each component function is described as follows:
IC3: velocity test core；
W5: it for speed signal input circuit, adjusts W5 control speed signal and starts to control lowest amplitude voltage value (2V)；
C8: extremely high frequency clutter filters out capacitor；
R9: speed signal input resistance；
C10, W4: charge pump circuit exports integrating circuit；
Emitter following resistance inside R12:IC3；
R13, D8: increasing difference amplifier input negative terminal current potential inside IC3, improves circuit anti-interference ability；
C11, C12:IC3 power supply high and low frequency filter capacitor；
J2: to test the connectivity port table M2；
M2: locomotive speedmeter, for showing emulation and velocity sensor output speed value.
Claims (3)
1. hand-held locomotive photoelectric sensor emulate detector mainly by charging module, charging interface, power conversion module,
Lithium battery, velocity simulation and detection unit, velocity test unit, digital voltmeter, digital electronic ammeter, digital speed table, function
The composition such as change-over switch and interface.
2. hand-held locomotive photoelectric sensor emulation detector is mainly used in railway locomotive maintenance, 1. function, which includes, imitates
True function: emulation 4 multi-channel output signals of locomotive photoelectric sensor, while detecting locomotive and voltage and the load of power supply are provided
Ability；2. detection function: detection 4 multi-channel output signals of locomotive photoelectric sensor, while detecting locomotive photoelectric whirl biography
Sense device working voltage and current.
3. hand-held locomotive photoelectric sensor emulation detector technical characterstic has: 1. hand-held, it is small in size, convenient in teams and groups
Or scene uses；2. built-in lithium battery can charge repeatedly；3. multiple functional；4. speed adjustable range is big, precision is high；5. using
Circuit insulation blocking measure, safety are good；6. good appearance, exquisiteness, firm；7. extending cable to fix using magnetic mode, make
With conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810428770.4A CN110456103A (en) | 2018-05-08 | 2018-05-08 | Hand-held locomotive photoelectric sensor emulates detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810428770.4A CN110456103A (en) | 2018-05-08 | 2018-05-08 | Hand-held locomotive photoelectric sensor emulates detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110456103A true CN110456103A (en) | 2019-11-15 |
Family
ID=68472094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810428770.4A Withdrawn CN110456103A (en) | 2018-05-08 | 2018-05-08 | Hand-held locomotive photoelectric sensor emulates detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110456103A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220147740A1 (en) * | 2020-11-11 | 2022-05-12 | Powerchina Huadong Engineering Corporation Limited | Method for tracing pollution at drainage outlet of culvert |
-
2018
- 2018-05-08 CN CN201810428770.4A patent/CN110456103A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220147740A1 (en) * | 2020-11-11 | 2022-05-12 | Powerchina Huadong Engineering Corporation Limited | Method for tracing pollution at drainage outlet of culvert |
| US11645842B2 (en) * | 2020-11-11 | 2023-05-09 | Powerchina Huadong Engineering Corporation Limited | Method for tracing pollution at drainage outlet of culvert |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191115 |
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| WW01 | Invention patent application withdrawn after publication |