CN206974707U - A kind of train air testing tail pressure instrument with spread spectrum function - Google Patents
A kind of train air testing tail pressure instrument with spread spectrum function Download PDFInfo
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- CN206974707U CN206974707U CN201720921465.XU CN201720921465U CN206974707U CN 206974707 U CN206974707 U CN 206974707U CN 201720921465 U CN201720921465 U CN 201720921465U CN 206974707 U CN206974707 U CN 206974707U
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- pressure instrument
- spread spectrum
- spectrum function
- tail pressure
- train air
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Abstract
The utility model is a kind of train air testing tail pressure instrument with spread spectrum function, belong to railroad train air damping technical field, tail pressure instrument includes button 1, JTAG2, wireless communication module 3, pressure sensor 4, AD sample circuits 5, lithium battery 6, charging control circuit 7, charactron 8, MCU9, tail pressure instrument also includes handle (10), antenna protection pipe (11), upper shell (12), undersetting (13), O-ring seal (14), sensor control panel (15), battery cover board (16), battery bracket (17), antenna plate (18), circuit board module (19), dustproof sheet (20), master board (21), charge stud (22), ventilation stud (23), bolt (24).There is the train air testing tail pressure instrument of spread spectrum function to solve in the prior art for this, and the reliable communication of tail pressure instrument is apart from short, and stable signal transmission and anti-interference are poor, and configuration is not easy to the problem of waterproof and dustproof and anti-vibration.
Description
Technical field
The utility model is a kind of train air testing tail pressure instrument with spread spectrum function, belongs to railroad train air damping technology
Field.
Background technology
Vehicle brake performance be guarantee railway quality and safety key, and car inspection and repair main project it
One, in recent years, to adapt to movement requirement, vehicle braking employs some such as electronic control technology, disc brake, automatic stepless empty and load
Adjusting apparatus etc..Therefore, PLC and mechanics of communication are incorporated into vehicle braking performance test, microcomputer and PLC controls are being currently based on
Distributed centralization train air testing system in, its tail pressure instrument be one of important component for radio communication.But most tail pressure instrument
Reliable communication apart from short (be less than 1 kilometer), stable signal transmission and anti-interference are poor, and configuration be not easy to waterproof,
Dust-proof and anti-vibration.
The content of the invention
The utility model is exactly to design for above-mentioned the deficiencies in the prior art and provide one kind with spread spectrum work(
The train air testing tail pressure instrument of energy, the purpose is to solve the reliable communication of tail pressure instrument in the prior art apart from short, stable signal transmission
Property and anti-interference are poor, and configuration is not easy to the problem of waterproof and dustproof and anti-vibration.
The purpose of this utility model is achieved through the following technical solutions：
This kind has the train air testing tail pressure instrument of spread spectrum function, it is characterised in that：Tail pressure instrument includes button (1), JTAG
(2), wireless communication module (3), pressure sensor (4), AD sample circuits (5), lithium battery (6), charging control circuit (7), number
Code pipe (8), MCU (9)；The signal output part of button (1) is connected with MCU (9) signal input part (9e), JTAG (2) communication
Signal end is connected with MCU (9) signal of communication end (9f), the signal of communication end of wireless communication module (3) and MCU (9) communication
Signal end (9a) is connected, and the signal input part of pressure sensor (4) is connected with train pipe blast, the signal of pressure sensor (4)
Output end is connected with the signal input part of AD sample circuits (5), the signal output part of AD sample circuits (5) and MCU (9) signal
Input (9b) connects, and the power input of lithium battery (6) is connected with the power take-off (7b) of charging control circuit (7), filled
The power input (7c) of electric control circuit (7) is connected with charger, the signal of communication end (7a) of charging control circuit (7) with
MCU (9) signal of communication end (9c) connection, the signal input part of charactron (8) are connected with MCU (9) signal output part (9d)；
Tail pressure instrument also includes handle (10), antenna protection pipe (11), upper shell (12), undersetting (13), O-shaped sealing
Enclose (14), sensor control panel (15), battery cover board (16), battery bracket (17), antenna plate (18), circuit board module (19),
Dustproof sheet (20), master board (21), charging stud (22), ventilation stud (23), bolt (24).
Upper shell (12) is connected with undersetting (13) using four bolts (24), its end face filling with sealant.
Pressure sensor (4) is connected with sensor control panel (15), after the pressing of bottom and O-ring seal (14), by it with 4
Individual screws tighten is on undersetting (13).
Circuit board module is formed after charactron (8), master board (21), wireless communication module (3), antenna plate (18) connection
(19) upper shell (12) inside closely, and by metal battery support (17) is positioned at, and antenna plate (18) top enters antenna
In protection pipe (11).
Battery (6) is positioned in battery bracket (17) by battery cover board (16).
Undersetting (13) bottom is inlaid with ventilation stud (23) and two charging studs (22).
Handle (10) is connected with undersetting (13) by pin.
Charactron (8) port of export of upper shell (12) side, is pasted with transparent dust-proof piece (20).
Sensor control panel (15) in undersetting (13) is connected with circuit board module (19) using hard winding displacement, and button
(1) it is connected with master board (21) using soft arranging wire.
Wireless communication module (3) is using the wireless communication module with spread spectrum function.
It is an advantage of the invention that：
1st, new tail pressure instrument configuration design brief and practical, internal circuit board modular combination, housing seal are good.
2nd, designed using membrane keyboard, small volume high-intelligentization, and moistureproof, dust-proof, oil-stain-preventing and pernicious gas, sealing
By force, acid and alkali-resistance antidetonation.
3rd, wireless communication module has spread spectrum (using LoRa technologies) function, its stable signal transmission and anti-interference
By force.
Brief description of the drawings
Fig. 1 is the circuit principle structure block diagram of the train air testing tail pressure instrument described in the utility model with spread spectrum function
Fig. 2 is the main view graph structure of the train air testing tail pressure instrument described in the utility model with spread spectrum function
Fig. 3 is Fig. 2 right sectional view
Fig. 4 is Fig. 2 upward view
In figure：Button 1, JTAG2, wireless communication module 3, pressure sensor 4, AD sample circuits 5, lithium battery 6, charging control
Circuit 7 processed, charactron 8, MCU9, handle 10, antenna protection pipe 11, upper shell 12, undersetting 13, O-ring seal 14, sensor
Control panel 15, battery cover board 16, battery bracket 17, antenna plate 18, circuit board module 19, dustproof sheet 20, master board 21, charging
Stud 22, ventilation stud 23, bolt 24.
Embodiment
The utility model is further described below with reference to drawings and examples：
Referring to shown in accompanying drawing 1~4, tail pressure instrument includes button 1, JTAG2, wireless communication module 3, pressure sensor 4, AD
Sample circuit 5, lithium battery 6, charging control circuit 7, charactron 8, MCU9；The signal output part of button 1 and MCU9 signal are defeated
Enter to hold 9e to connect, JTAG2 signal of communication end and MCU9 signal of communication end 9f connections, the signal of communication of wireless communication module 3
End is connected with MCU9 signal of communication end 9a, and the signal input part of pressure sensor 4 is connected with train pipe blast, pressure sensor
4 signal output part is connected with the signal input part of AD sample circuits 5, the signal output part of AD sample circuits 5 and MCU9 letter
Number input 9b connections, the power input of lithium battery 6 are connected with the power take-off 7b of charging control circuit 7, charge control
The power input 7c of circuit 7 is connected with charger, the signal of communication end 7a of charging control circuit 7 and MCU9 signal of communication
Hold 9c connections, the signal output part 9d connections of the signal input part and MCU9 of charactron 8；
In structure, the train air testing tail pressure instrument with spread spectrum function also includes handle 10, antenna protection pipe 11, upper shell
12nd, undersetting 13, O-ring seal 14, sensor control panel 15, battery cover board 16, battery bracket 17, antenna plate 18, wiring board
Component 19, dustproof sheet 20, master board 21, charging stud 22, ventilation stud 23, bolt 24, wherein：Upper shell 12 and undersetting
13 are connected using four bolts 24, and its end face filling with sealant, pressure sensor 4 is connected with sensor control panel 15, bottom
With O-ring seal 14 press after, by its with 4 screws tightens on undersetting 13, charactron 8, master board 21, radio communication
Module 3, antenna plate 18 form circuit board module 19 after connecting, and are closely positioned in upper shell 12 by metal battery support 17
Portion, and the top of antenna plate 18 is entered in antenna protection pipe 11, battery 6 is positioned in battery bracket 17 by battery cover board 16
In, the bottom of undersetting 13 is inlaid with ventilation stud 23 and two charging studs 22, and handle 10 is connected with undersetting 13 by pin
Connect, the port of export of charactron 8 of the side of upper shell 12, be pasted with transparent dust-proof piece 20, the sensor control panel 15 in undersetting 13
It is connected with circuit board module 19 using hard winding displacement, and button 1 is connected with master board 21 using soft arranging wire, wireless communication module 3
Using the wireless communication module with spread spectrum function.
It is that the tail presses instrument by sensor by blast that this kind, which has the operation principle of the train air testing tail pressure instrument of spread spectrum function,
Being converted to 4 and arrive 20mA current signals, reconvert is into corresponding pressure value, by wireless communication transmissions to relaying or actuator,
Realize to the real-time collection of blast.Its hardware realizes that step is as follows：
1st, tail pressure instrument is broadly divided into pressure acquisition part, wireless communication section, man-machine interaction part and equipment debugging and charged
Partly, MCU parts.It is responsible for blast analog quantity being converted to digital quantity in pressure acquisition part；Wireless communication section is responsible for gathering
To pressure data be transferred to relaying or actuator；It is responsible for related data input and shows in real time with pressure value in man-machine interaction part
Show；Equipment debugging live part is responsible for downloading debugging routine and equipment charge.
2nd, pressure acquisition part is responsible for blast analog quantity being converted to digital quantity, mainly samples electricity by pressure sensor, AD
ADC collecting parts form in road and MCU.Blast is converted to 4 and arrives 20mA current signals by pressure sensor, and current signal passes through
AD sample circuits are converted to digital quantity, and corresponding pressure value is included on 4 Digital sum pipes.
3rd, the pressure data that wireless communication section is responsible for collecting is transferred to relaying or actuator, mainly by channel radio
Believe module (there is spread spectrum function) composition.Its module can receive the wireless poll instruction that relaying or actuator issue, and be connected to finger
The MCU pressure values for having switched to digital quantity sent by serial communication port are sent by 433MHz frequencies after order, so that will
Pressure data is transferred to relaying or actuator.
4th, related data input and pressure value real-time display are responsible in man-machine interaction part.Mainly by button and charactron group
Into.The functions such as the station track selection of tail pressure instrument realize that button is responsible for the input of data, charactron by the cooperation of button and charactron
Pressure charge value real-time display.
5th, equipment debugging live part is responsible for downloading debugging routine and equipment charge.Mainly by JTAG, charging control circuit,
Lithium battery group into.Tail pressure instrument can be downloaded by JTAG to MCU, debugging routine；When charging control circuit is connected with external charger
It can be lithium cell charging, and charging current is cut off when electricity is full of；Equipment passes through lithium battery during operation use at the scene
Power supply, continuous use 12 hours can be met.
6th, tail presses instrument program storage in Micro-processor MCV, main to complete tail pressure instrument working state administration, pressure data turn
Change, the function such as sensor calibration.
Claims (10)
- A kind of 1. train air testing tail pressure instrument with spread spectrum function, it is characterised in that：Tail pressure instrument includes button (1), JTAG (2), wireless communication module (3), pressure sensor (4), AD sample circuits (5), lithium battery (6), charging control circuit (7), number Code pipe (8), MCU (9)；The signal output part of button (1) is connected with MCU (9) signal input part (9e), JTAG (2) communication Signal end is connected with MCU (9) signal of communication end (9f), the signal of communication end of wireless communication module (3) and MCU (9) communication Signal end (9a) is connected, and the signal input part of pressure sensor (4) is connected with train pipe blast, the signal of pressure sensor (4) Output end is connected with the signal input part of AD sample circuits (5), the signal output part of AD sample circuits (5) and MCU (9) signal Input (9b) connects, and the power input of lithium battery (6) is connected with the power take-off (7b) of charging control circuit (7), filled The power input (7c) of electric control circuit (7) is connected with charger, the signal of communication end (7a) of charging control circuit (7) with MCU (9) signal of communication end (9c) connection, the signal input part of charactron (8) are connected with MCU (9) signal output part (9d)；Tail pressure instrument also includes handle (10), antenna protection pipe (11), upper shell (12), undersetting (13), O-ring seal (14), sensor control panel (15), battery cover board (16), battery bracket (17), antenna plate (18), circuit board module (19), anti- Dirt piece (20), master board (21), charging stud (22), ventilation stud (23), bolt (24).
- 2. the train air testing tail pressure instrument with spread spectrum function according to claim 1, it is characterised in that：Upper shell (12) is with Bearing (13) is connected using four bolts (24), its end face filling with sealant.
- 3. the train air testing tail pressure instrument with spread spectrum function according to claim 1, it is characterised in that：Pressure sensor (4) Be connected with sensor control panel (15), after the pressing of bottom and O-ring seal (14), by its with 4 screws tightens in undersetting (13) on.
- 4. the train air testing tail pressure instrument with spread spectrum function according to claim 1, it is characterised in that：Charactron (8), master control Circuit board module (19) is formed after making sheet (21), wireless communication module (3), antenna plate (18) connection, and by metal battery support (17) it is internal to be closely positioned at upper shell (12), and antenna plate (18) top is entered in antenna protection pipe (11).
- 5. the train air testing tail pressure instrument with spread spectrum function according to claim 1, it is characterised in that：Battery (6) passes through electricity Pond cover plate (16) is positioned in battery bracket (17).
- 6. the train air testing tail pressure instrument with spread spectrum function according to claim 1, it is characterised in that：Undersetting (13) bottom It is inlaid with ventilation stud (23) and two charging studs (22).
- 7. the train air testing tail pressure instrument with spread spectrum function according to claim 1, it is characterised in that：Handle (10) and lower branch Seat (13) is connected by pin.
- 8. the train air testing tail pressure instrument with spread spectrum function according to claim 1, it is characterised in that：Upper shell (12) side Charactron (8) port of export, be pasted with transparent dust-proof piece (20).
- 9. the train air testing tail pressure instrument with spread spectrum function according to claim 1, it is characterised in that：In undersetting (13) Sensor control panel (15) is connected with the hard winding displacement of circuit board module (19) use, and button (1) and master board (21) use are soft Winding displacement connects.
- 10. the train air testing tail pressure instrument with spread spectrum function according to claim 1, it is characterised in that：Wireless communication module (3) using the wireless communication module with spread spectrum function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720921465.XU CN206974707U (en) | 2017-07-27 | 2017-07-27 | A kind of train air testing tail pressure instrument with spread spectrum function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720921465.XU CN206974707U (en) | 2017-07-27 | 2017-07-27 | A kind of train air testing tail pressure instrument with spread spectrum function |
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| Publication Number | Publication Date |
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| CN206974707U true CN206974707U (en) | 2018-02-06 |
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ID=61397755
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720921465.XU Active CN206974707U (en) | 2017-07-27 | 2017-07-27 | A kind of train air testing tail pressure instrument with spread spectrum function |
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| CN (1) | CN206974707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680368A (en) * | 2018-05-25 | 2018-10-19 | 郑州智辆电子科技有限公司 | Row inspection equipment information management platform |
-
2017
- 2017-07-27 CN CN201720921465.XU patent/CN206974707U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680368A (en) * | 2018-05-25 | 2018-10-19 | 郑州智辆电子科技有限公司 | Row inspection equipment information management platform |
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