CN209166488U - Portable velocity pressure lane testing device - Google Patents
Portable velocity pressure lane testing device Download PDFInfo
- Publication number
- CN209166488U CN209166488U CN201822236317.1U CN201822236317U CN209166488U CN 209166488 U CN209166488 U CN 209166488U CN 201822236317 U CN201822236317 U CN 201822236317U CN 209166488 U CN209166488 U CN 209166488U
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- testing device
- cpu
- pressure
- lane testing
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Abstract
The utility model discloses a kind of portable velocity pressure lane testing devices, it includes CPU module, signal generating module, matrix keyboard, display module and power conversion module, the matrix keyboard and the input terminal of CPU module connect, the output end of the CPU module and the input terminal of signal generating module connect, the output end of the module of the CPU is connect with display module, wherein, the signal generating module includes that circuit and pressure voltage regulator circuit occur for squared pulse trains, the power conversion module is the three-terminal voltage-stabilizing module of DC15V to DC5V, pass through simulated light electric-type velocity sensor and pressure sensor output signal, realize the fault detection of the train supervision equipment of free removal.
Description
Technical field
The utility model relates to measurement and control areas, and in particular to a kind of portable velocity pressure lane testing device.
Background technique
When velocity sensor or pressure sensor in train supervision equipment break down, usual fault detection method is needed
Velocity sensor or pressure sensor are removed to carry out fault detection, or good velocity pressure are passed using replacement method
Sensor or pressure sensor detect to be replaced, and such detection time is excessively complicated and cumbersome, and detection efficiency is not high.
Summary of the invention
To solve the above problems, the utility model provides a kind of portable velocity pressure lane testing device, pass through simulation
Photoelectric speed sensor and pressure sensor output signal realize the fault detection of the train supervision equipment of free removal.
The utility model is achieved through the following technical solutions:
Portable velocity pressure lane testing device, it includes CPU module, signal generating module, matrix keyboard, display module
And power conversion module, the input terminal connection of the matrix keyboard and CPU module, the output end and signal of the CPU module are sent out
The input terminal connection of raw module, the output end of the module of the CPU are connect with display module, wherein the signal generating module
Circuit and pressure voltage regulator circuit occurs including squared pulse trains, the power conversion module is the three of DC15V to DC5V
Hold Voltage stabilizing module.
The matrix keyboard is two rows, four column keyboard matrix.
The display module includes display screen and signal lamp, and the signal lamp includes power supply indicator and speed
Signal lamp.
Square-wave pulse output channel and pressure voltage output channel are provided in the signal generating module, the power supply turns
Power input channel is provided on mold changing block.
The square-wave pulse output channel, pressure voltage output channel and power input channel share same signal transmission end
Mouthful.
The CPU module is single-chip microcontroller.
The utility model provides a kind of portable velocity pressure lane testing device, its complete simulated light electric-type velocity sensor
With the voltage value of pressure sensor output pulse adjustable squared pulse trains and pressure adjustable, velocity pick-up can not removed
Conveniently judge that monitoring is set on velocity sensor or pressure sensor failure or train in the case where device and pressure sensor
Standby and line fault, passes through analog rate and pressure signal, it can also be used to the electronics of static test monitoring mode and experiment train
Cabinet correlation function.
Detailed description of the invention
Fig. 1 is portable velocity pressure lane testing device electrical block diagram.
Wherein, the reference numerals are as follows:
1. display module, 2. power supply indicators, 3 display screens, 4. speed signal indicator lights, 5. CPU modules, 6. matrixes
Keyboard, 7. power conversion modules, 8. square wave train pulse sequence generation circuits, 9. pressure voltage regulator circuits, 10. signals hair
Raw module.
Specific embodiment
Below in conjunction with the attached drawing in the utility model, to the technical scheme in the embodiment of the utility model carry out it is clear,
It is fully described by.Obviously, described embodiment example is only a part of embodiment of the utility model, rather than whole
Embodiment, the embodiment based on the utility model, those of ordinary skill in the art are not making creative work premise
Under all other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, portable velocity pressure lane testing device, it includes CPU module 5, signal generating module 10, matrix
Keyboard 6, display module 1 and power conversion module 7, the matrix keyboard 6 are connect with the input terminal of CPU module 5, the CPU mould
The output end of block 5 is connect with the input terminal of signal generating module 10, and the output end and display module 1 of the module 5 of the CPU connect
It connects, wherein the signal generating module 10 includes that circuit 8 and pressure voltage regulator circuit 9, the electricity occur for squared pulse trains
Source conversion module 7 is the three-terminal voltage-stabilizing module of DC15V to DC5V.
The CPU module is single-chip microcontroller, and the single-chip microcontroller model is preferably STC12C5A16S2.
The matrix keyboard 6 be two rows, four column keyboard matrix, two rows, the four column matrix keyboard include " setting " key, " on
Selection " key, " lower selection " key, " determine/automatic " key, " pressurized energy " key, " decompression power " key, " speed increases " key and " speed subtracts
It is small " key.
The display module 1 includes display screen 3 and signal lamp, and the signal lamp includes 2 He of power supply indicator
Speed signal indicator light 4, the display screen are high-resolution liquid crystal display.
Square-wave pulse output channel and pressure voltage output channel, the power supply are provided in the signal generating module 10
Power input channel is provided on conversion module 7.
The square-wave pulse output channel, pressure voltage output channel and power input channel share same signal transmission end
Mouthful, described to share same signal transmission port as five pin input ports, pin is respectively connected to power supply output channel, square wave arteries and veins
Output channel and pressure voltage output channel are rushed, a remaining pin is that idle pin can be used as anti-error pin.
The portable velocity pressure lane testing device, the course of work are as follows: by p-wire by portable velocity pressure
Lane testing device is connected with the monitoring device on train, and portable velocity pressure lane testing device is obtained from train supervision equipment
15V power supply is taken, and 15V voltage is converted into 5V voltage by power conversion module 7, for portable velocity pressure channel
Tester provides operating voltage, if 5V voltage is normal, power supply indicator 2 and display screen 3 are lit, at this time portable speed
Degree pressure channel tester start self-test, show after self-test screen display regulate the speed value and adjust pressure value, initial velocity value
It is zero with pressure value, pressing " setting " key enters parameter input state, show screen display " wheel footpath " " pulse " two parameters,
It is pressed after " setting " key is switched to the parameter item to be adjusted again, cursor flashes in the parameter, passes through " upper selection " key and " lower choosing
Select " key is adjusted.When being adjusted, often by primary, parameter one step-length of adjustment, such as: " wheel footpath ", often by primary adjustment
1mm, parameter was quickly adjusted in key 1 second or more for long-pressing " upper selection " key and " lower selection "；Umber of pulse is then several commonly used digital
Between recycle, such as 8,10,100." determining/automatic " key is pressed after having adjusted to be saved, and invalid parameters are otherwise inputted.
The speed signal pulse that " wheel footpath ", " pulse " parameter consistent with device parameter to be simulated must just can guarantee sending
Correctly, the velocity amplitude that the speed that otherwise portable velocity pressure lane testing device provides is shown with locomotive monitoring equipment will be different
It causes.
The portable velocity pressure lane testing device has autorun.In velocity pressure adjustment state pressing
" determine/automatic " key, device up will be accelerated and be pressurizeed with 1 kilometer per second and 10KP/ second speed, five kilometers of every acceleration with
100KP suspends five seconds, continues to accelerate after the EOT end of timeout.Pressing " confirmation/automatic test " key exits automatic test mode again,
Back to manual test.The function greatly facilitates the upkeep operation in library.
Under manual mode: pressing " decompression power " key corresponding pressure numerical value is successively decreased as unit of 10KP, presses " pressurized energy " key "
Corresponding pressure numerical value is incremented by as unit of 10KP, and pressing " speed reduction " key corresponding speed numerical value is successively decreased as unit of 1KM, is pressed
" speed increase " key corresponding speed numerical value is incremented by as unit of 1KM.
Velocity pressure signal automatic clear in each device power.
The portable velocity pressure lane testing device, by the output adjustable squared pulse trains of pulse come analog rate biography
Sensor, by pressure voltage output channel come analog pressure sensor, and the portable velocity pressure lane testing device can lead to
It crosses locomotive monitoring equipment and obtains power supply, have the characteristics that portable convenient, efficient.
Technological means disclosed in the utility model is not limited only to technological means disclosed in above embodiment, also
Including technical solution consisting of any combination of the above technical features.It should be pointed out that for the ordinary skill of the art
For personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (6)
1. portable velocity pressure lane testing device, it is characterised in that: it includes CPU module, signal generating module, matrix key
The input terminal of disk, display module and power conversion module, the matrix keyboard and CPU module connects, the output of the CPU module
End is connect with the input terminal of signal generating module, and the output end of the module of the CPU is connect with display module, wherein the letter
Number module occurs includes that circuit and pressure voltage regulator circuit occur for squared pulse trains, and the power conversion module is DC15V
To the three-terminal voltage-stabilizing module of DC5V.
2. velocity pressure lane testing device according to claim 1, it is characterised in that: the matrix keyboard is two rows four column
Keyboard matrix.
3. velocity pressure lane testing device according to claim 1, it is characterised in that: the display module includes display screen
And signal lamp, the signal lamp include power supply indicator and speed signal indicator light.
4. velocity pressure lane testing device according to claim 1, it is characterised in that: be arranged in the signal generating module
There are square-wave pulse output channel and pressure voltage output channel, is provided with power input channel in the power conversion module.
5. velocity pressure lane testing device according to claim 4, it is characterised in that: the square-wave pulse output channel,
Pressure voltage output channel and power input channel share same signal transmission port.
6. velocity pressure lane testing device according to claim 1, it is characterised in that: the CPU module is single-chip microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822236317.1U CN209166488U (en) | 2018-12-28 | 2018-12-28 | Portable velocity pressure lane testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822236317.1U CN209166488U (en) | 2018-12-28 | 2018-12-28 | Portable velocity pressure lane testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209166488U true CN209166488U (en) | 2019-07-26 |
Family
ID=67327845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822236317.1U Active CN209166488U (en) | 2018-12-28 | 2018-12-28 | Portable velocity pressure lane testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209166488U (en) |
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2018
- 2018-12-28 CN CN201822236317.1U patent/CN209166488U/en active Active
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