CN208333888U - A kind of Portable train stationarity tester based on WIFI - Google Patents
A kind of Portable train stationarity tester based on WIFI Download PDFInfo
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- CN208333888U CN208333888U CN201821121009.8U CN201821121009U CN208333888U CN 208333888 U CN208333888 U CN 208333888U CN 201821121009 U CN201821121009 U CN 201821121009U CN 208333888 U CN208333888 U CN 208333888U
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Abstract
The utility model discloses a kind of Portable train stationarity tester based on WIFI, it is communicated with back-end system by WiFi network, the train running stability tester includes collecting cassette, acceleration transducer is detachably installed on the collecting cassette, the collecting cassette is internally provided with circuit board, A/D conversion circuit is provided on the circuit board, DSP circuit and front end WiFi communication circuit, the signal output end of the acceleration transducer is connect with the signal input part of A/D conversion circuit, the signal output end of the A/D conversion circuit and the signal input part of DSP circuit connect, the DSP circuit also with front end WiFi communication circuit connection, institute states front end WiFi communication circuit and is also communicated with back-end system by WiFi network.In the utility model, by the way that front end WiFi communication circuit is arranged, carried out data transmission by WiFi network, without being routed, networking is also very convenient.
Description
Technical field
The utility model relates to train detection equipment technical fields, more particularly to a kind of Portable train based on WIFI
Stationarity tester.
Background technique
Stationarity is primarily referred to as shipping the integrality of cargo on car on the riding comfort, lorry of passenger, main to comment
Valence parameter is the vibration acceleration of all directions of specified position on vehicle, will obtain evaluation index value after its statistical disposition.
With the raising of train speed, to the safety and reliability of train operation, higher requirements are also raised.To new
The EMU of operation, it is desirable that tracing detection must be carried out, the situation of change of the increase train running stability with distance travelled is grasped,
Realize dangerous forecast, fault diagnosis and the Performance Analysis etc. of train.Traditional detection system needs to install at each position of train
By wired connection, data analyzing and processing software is mostly real on industrial personal computer or PC machine for sensor, data collection terminal and control terminal
It is existing.The problems such as it is big that there are equipment volumes, and power consumption is high, and wiring is complicated, hence it is evident that be not suitable for the testing requirements under EMU environment.Mesh
The characteristics of preceding high-speed EMUs vibratility detects is:
1, speed directly affects the stationarity of train, and with the raising of speed, the period distances of stationarity detection shorten,
Accuracy requirement improves；
2, high-speed EMUs utilization rate is very high, and it is shorter to be parked in the time used for overhaul in library, therefore, with a large amount of time come
Installation and debugging detection device are not shown；
3, train is integrally a closed environment, being routed to as difficult point between detection system equipment inside and outside compartment；
4, since train is in normal operation state, the whole process of tracking and monitoring cannot influence beautiful in compartment
It sees, clean and tidy and environment of comfortably riding, passenger and crew member can not be hampered and normally sit, stand and go.
The characteristics of for EMU, it would be desirable to have it is a kind of it is small in size, to exempt from wiring, networking convenient, self-powered, easy to operate
Stationarity detection system.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, and it is flat to provide a kind of Portable train based on WIFI
Stability tester, it is convenient without wiring, networking when use.
The purpose of this utility model is achieved through the following technical solutions: a kind of Portable train based on WIFI is flat
Stability tester is communicated with back-end system by WIFI network, and the train running stability tester includes collecting cassette, described
Acceleration transducer is detachably installed, the collecting cassette is internally provided with circuit board, is arranged on the circuit board on collecting cassette
There are A/D conversion circuit, DSP circuit and front end WIFI telecommunication circuit, the signal output end and A/D of the acceleration transducer are converted
The signal input part of circuit connects, and the signal output end of the A/D conversion circuit and the signal input part of DSP circuit connect, institute
It states DSP circuit also to connect with front end WIFI telecommunication circuit, institute states front end WIFI telecommunication circuit and also passes through WIFI net with back-end system
Network is communicated.
Preferably, the A/D conversion circuit includes A/D converter, first capacitor, the second capacitor, third capacitor, the 4th electricity
Appearance, the 5th capacitor, the 6th capacitor, the 7th capacitor, first resistor, second resistance, 3rd resistor and crystal oscillator；The first resistor
The output end of first termination acceleration transducer, the second end of the first resistor are grounded through first capacitor, the first resistor
Second termination A/D converter first simulation positive input；First termination acceleration transducer of the second resistance
Output end, the second end of the second resistance is through the second capacity earth, and the of the second termination A/D converter of the second resistance
Two simulation positive inputs；The output end of first termination acceleration transducer of the 3rd resistor, the of the 3rd resistor
Positive input is simulated through third capacity earth, the third of the second termination A/D converter of the 3rd resistor in two ends；The A/
The digital power of D converter terminates reference power source, the 4th capacity earth of digital power end of the A/D converter；The A/D
The the first analog power end and the second analog power end of converter connect reference power source, the first simulation electricity of the A/D converter
Through the 5th capacity earth, the 6th capacitor is in parallel with the 5th capacitor for source and the second analog power end；The A/D converter
Reference voltage end through the 7th capacity earth；The master clock input terminal of the A/D converter is connect with crystal oscillator；The A/D conversion
The internal reference output end of device is defeated with the first simulation negative input, the second simulation negative input and third simulation negative sense respectively
Enter end connection.
Preferably, the DSP circuit includes dsp chip, and the reception frame synchronization end of the dsp chip is converted with A/D respectively
The SDO frame signal input terminal of device is connected with SDI frame signal input terminal, and the transmission frame synchronization end of the dsp chip turns with A/D respectively
The SDO frame signal input terminal of parallel operation is connected with SDI frame signal input terminal, and the Serial data receiving end of the dsp chip and A/D turn
The serial data output terminal of parallel operation connects, and the serial data transmitting terminal of the dsp chip and the serial signal of A/D converter input
End connection, the reception clock end of the dsp chip and tranmitting data register end are connect with the serial clock output end of A/D converter,
A general purpose I/end O of the dsp chip allows to hold with the reset terminal of A/D converter and asynchronous input respectively to be connected.
Preferably, the front end WIFI telecommunication circuit include WIFI chip, light emitting diode, the 4th resistance, the 5th resistance,
6th resistance, the 8th capacitor, the 9th capacitor, the tenth capacitor, the 11st capacitor, first switch and the second switch, the WIFI core
WIFI starting the 4th resistance of indication end of piece and the anode of light emitting diode connect, the minus earth of the light emitting diode,
The power output end of the WIFI chip is connect with the first end of the 5th resistance and the 6th resistance respectively, and the of the 5th resistance
Two ends are grounded through first switch, and the 8th capacitor is in parallel with first switch, the first reset terminal and the 5th of the WIFI chip
The second end of resistance connects, and the second end of the 6th resistance is grounded through second switch, and the 9th capacitor and second switch are simultaneously
Connection, the second reset terminal of the WIFI chip connect with the second end of the 6th resistance, the serial ports receiving end of the WIFI chip and
The serial ports transmitting terminal of dsp chip connects, and the serial ports transmitting terminal of the WIFI chip and the serial ports receiving end of dsp chip connect, institute
The power input termination power supply of WIFI chip is stated, the power input of the WIFI chip is described through the tenth capacity earth
11st capacitor is in parallel with the tenth capacitor.
Preferably, the back-end system includes mobile terminal, and the mobile terminal is logical by WIFI network and front end WIFI
Letter circuit is communicated.
Preferably, the back-end system further includes cloud server, and the cloud server passes through communication network and movement
Terminal is communicated.
The beneficial effects of the utility model are:, by the way that front end WIFI telecommunication circuit is arranged, passing through WIFI in the utility model
Network carries out data transmission, and without being routed, networking is also very convenient；In addition, be provided in back-end system mobile terminal and
The remote access of testing result may be implemented in cloud server, and user is facilitated to understand testing result.
Detailed description of the invention
Fig. 1 is the composition block diagram of the utility model；
Fig. 2 is the circuit diagram of A/D conversion circuit in the utility model；
Fig. 3 is the circuit diagram of DSP circuit in the utility model；
Fig. 4 is the circuit diagram of front end WIFI telecommunication circuit in the utility model.
Specific embodiment
Below in conjunction with embodiment, the technical solution of the utility model is clearly and completely described, it is clear that retouched
The embodiment stated is only the utility model a part of the embodiment, instead of all the embodiments.Based in the utility model
Embodiment, those skilled in the art's every other embodiment obtained under the premise of not making the creative labor, all belongs to
In the range of the utility model protection.
Refering to fig. 1-4, a kind of Portable train stationarity tester based on WIFI is present embodiments provided:
As shown in Figure 1, a kind of Portable train stationarity tester based on WIFI, passes through WIFI network with back-end system
It is communicated, the train running stability tester includes collecting cassette, and the collecting cassette uses common metal case, if not
Become rusty steel box, aluminium alloy box etc..Acceleration transducer is detachably installed on the collecting cassette, such as passes through screw for acceleration sensing
Device is fixed on collecting cassette.The collecting cassette is internally provided with circuit board, and A/D conversion circuit, DSP are provided on the circuit board
Circuit and front end WIFI telecommunication circuit, the signal output end of the acceleration transducer and the signal input part of A/D conversion circuit
The signal input part of connection, the signal output end of the A/D conversion circuit and DSP circuit connects, the DSP circuit also with front end
The connection of WIFI telecommunication circuit, institute states front end WIFI telecommunication circuit and is also communicated with back-end system by WIFI network.It is described to adopt
Integrate the power supply being provided in box for powering as circuit board, power supply uses battery.
In use, the acceleration information in acceleration transducer acquisition all directions, and collected data are sent to A/D
Conversion circuit carries out analog-to-digital conversion, and the data obtained after analog-to-digital conversion are sent to DSP circuit and are handled, before then being passed through
End WIFI telecommunication circuit is sent to back-end system.
The back-end system includes mobile terminal and cloud server, and the mobile terminal passes through WIFI network and front end
WIFI telecommunication circuit is communicated, and the cloud server is communicated by communication network and mobile terminal, the communication network
Network can be 3G network, 4G network, WIFI network and cable network etc..It should be noted that being provided in mobile terminal corresponding
WIFI module, to realize the communication with front end WIFI telecommunication circuit；The mobile terminal can be mobile phone or tablet computer
Deng.In addition, the back-end system further includes alarm, alarm is connect with mobile terminal or cloud server, in testing result
It alarms when being greater than the set value, alarm can use combined aural and visual alarm.
The acceleration transducer uses the LC0709-2 of Lanace measuring technology Co., Ltd, can acquire X, Y, Z tri- simultaneously
The acceleration in a direction；The AD73360 using AD company of the A/D converter；The dsp chip is using TI company
TMS320F2812；The WIFI chip uses the HLK-RM04 of Shenzhen Hai Lingke Electronics Co., Ltd..
As shown in figs 2-4, the A/D conversion circuit includes A/D converter U1, first capacitor C1, the second capacitor C2,
Three capacitor C3, the 4th capacitor C4, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7, first resistor R1, second resistance R2,
Three resistance R3 and crystal oscillator Y1, the DSP circuit include dsp chip U2, the front end WIFI telecommunication circuit include WIFI chip U3,
Light emitting diode D1, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 8th capacitor C8, the 9th capacitor C9, the tenth capacitor
C10, the 11st capacitor C11, first switch S1 and second switch S2.The first resistor R1, second resistance R2 and 3rd resistor
The resistance value of R3 is 100 Europe, the first capacitor C1, the second capacitor C2, third capacitor C3 capacitance be 0.047uF, described the
Four capacitor C4, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7, the 8th capacitor C8, the 9th capacitor C9 and the tenth capacitor C10
Capacitance be 0.1uF, the frequency of the crystal oscillator is 16.384MHz, the 4th resistance R4, the 5th resistance R5 and the 6th resistance
The resistance value of R6 is 1k, and the capacitance of the 11st capacitor C11 is 470Uf/16V.
As shown in Fig. 2, the output end of the first termination acceleration transducer of the first resistor R1, the first resistor R1
Second end be grounded through first capacitor C1, the first simulation of the second termination A/D converter U1 of the first resistor R1 is positive defeated
Enter to hold VINP1；The output end of the first termination acceleration transducer of the second resistance R2, the second end of the second resistance R2
It is grounded through the second capacitor C2, the second simulation positive input of the second termination A/D converter U1 of the second resistance R2
VINP2；The output end of the first termination acceleration transducer of the 3rd resistor R3, the second end of the 3rd resistor R3 is through the
The third of three capacitor C3 ground connection, the second termination A/D converter U1 of the 3rd resistor R3 simulates positive input VINP3.
The digital power end DVDD of the A/D converter U1 connects reference power source, the digital power end of the A/D converter U1
DVDD is grounded through the 4th capacitor C4；The the first analog power end and the second analog power end of the A/D converter connect with reference to electricity
Source, the first analog power end and the second analog power end of the A/D converter are through the 5th capacity earth, the 6th capacitor
It is in parallel with the 5th capacitor；The reference voltage end REFCAP of the A/D converter U1 is grounded through the 7th capacitor C7；The A/D conversion
The master clock input terminal MCLK of device U1 is connect with crystal oscillator Y1；The internal reference output end REFOUT of the A/D converter U1 distinguishes
Connect with the first simulation negative input VINN1, the second simulation negative input VINN2 and third simulation negative input VINN3
It connects；The first simulation ground terminal AGND1 of the A/D converter U1 and the second simulation ground terminal AGND2 are grounded.
As shown in Figures 2 and 3, the SDO frame signal input terminal SDOFS of the A/D converter U1 is respectively with dsp chip U2's
It receives frame synchronization end MFSRA and is connected with frame synchronization end MFSXA is sent, the SDI frame signal input terminal of the A/D converter U1
SDIFS is connect with the reception frame synchronization end MFSRA of dsp chip U2 and transmission frame synchronization end MFSXA respectively.The A/D converter
The Serial data receiving end MDRA of the serial data output terminal SDO and dsp chip U2 of U1 are connect, the string of the A/D converter U1
Row signal input part SDI is connect with the serial data transmitting terminal MDXA of dsp chip U2.The serial clock of the A/D converter U1
The reception clock end MCLKRA and tranmitting data register end MCLKXA of output end SCLK and dsp chip U2 is all connected with.A/D converter U1's
Reset terminal RESET and asynchronous input allow that SE is held to connect with a general purpose I of the dsp chip U2/end O GIOPA0.
As shown in Figure 3 and Figure 4, the serial ports of the serial ports transmitting terminal SCITXDA of the dsp chip U2 and WIFI chip U3 receives
Hold UART-RX connection, the serial ports transmitting terminal UART-TX of the serial ports receiving end SCIRXDA and WIFI chip U3 of the dsp chip U2
Connection.
As shown in figure 4, the WIFI starting indication end WIFILED of the WIFI chip U3 is through the 4th resistance R4 and light-emitting diodes
The anode of pipe D1 connects, the minus earth of the light emitting diode D1, and power output end VO3=3V points of the WIFI chip U3
It is not connect with the first end of the 5th resistance R5 and the 6th resistance R6, the second end of the 5th resistance R5 connects through first switch S1
Ground, the 8th capacitor C8 is in parallel with first switch S1, the first reset terminal ES/RST and the 5th resistance of the WIFI chip U3
The second end of R5 connects, and the second end of the 6th resistance R6 is grounded through second switch S2, and the 9th capacitor C9 is opened with second
It is in parallel to close S2, the second reset terminal WPS/RST of the WIFI chip U3 is connect with the second end of the 6th resistance R6, the WIFI core
The power input VCC5V of piece U3 connects power supply, and the power input VCC5V of the WIFI chip U3 is through the tenth capacitor C10
Ground connection, the 11st capacitor C11 are in parallel with the tenth capacitor C10.
The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein
Disclosed form, should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and
Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field
The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all should be in right appended by the utility model
It is required that protection scope in.
Claims (6)
1. a kind of Portable train stationarity tester based on WIFI, is communicated with back-end system by WIFI network,
It being characterized in that, the train running stability tester includes collecting cassette, acceleration transducer is detachably installed on the collecting cassette,
The collecting cassette is internally provided with circuit board, and it is logical that A/D conversion circuit, DSP circuit and front end WIFI are provided on the circuit board
Believe that circuit, the signal output end of the acceleration transducer are connect with the signal input part of A/D conversion circuit, the A/D conversion
The signal output end of circuit and the signal input part of DSP circuit connect, and the DSP circuit also connects with front end WIFI telecommunication circuit
It connects, institute states front end WIFI telecommunication circuit and also communicated with back-end system by WIFI network.
2. a kind of Portable train stationarity tester based on WIFI according to claim 1, which is characterized in that described
A/D conversion circuit includes A/D converter, first capacitor, the second capacitor, third capacitor, the 4th capacitor, the 5th capacitor, the 6th electricity
Appearance, the 7th capacitor, first resistor, second resistance, 3rd resistor and crystal oscillator；First termination acceleration sensing of the first resistor
The second end of the output end of device, the first resistor is grounded through first capacitor, the second termination A/D converter of the first resistor
First simulation positive input；The output end of first termination acceleration transducer of the second resistance, the second resistance
Second end through the second capacity earth, the second simulation positive input of the second termination A/D converter of the second resistance；Institute
State the output end of the first termination acceleration transducer of 3rd resistor, the second end of the 3rd resistor through third capacity earth,
The third of second termination A/D converter of the 3rd resistor simulates positive input；The digital power end of the A/D converter
Connect reference power source, the 4th capacity earth of digital power end of the A/D converter；First simulation electricity of the A/D converter
Source and the second analog power end connect reference power source, the first analog power end of the A/D converter and the second analog power
Through the 5th capacity earth, the 6th capacitor is in parallel with the 5th capacitor at end；The reference voltage end of the A/D converter is through the 7th
Capacity earth；The master clock input terminal of the A/D converter is connect with crystal oscillator；The internal reference output end of the A/D converter
It is connect respectively with the first simulation negative input, the second simulation negative input and third simulation negative input.
3. a kind of Portable train stationarity tester based on WIFI according to claim 2, which is characterized in that described
DSP circuit includes dsp chip, the reception frame synchronization end of the dsp chip respectively with the SDO frame signal input terminal of A/D converter
It is connected with SDI frame signal input terminal, the transmission frame synchronization end of the dsp chip is inputted with the SDO frame signal of A/D converter respectively
End is connected with SDI frame signal input terminal, and the Serial data receiving end of the dsp chip and the serial data of A/D converter export
End connection, the serial data transmitting terminal of the dsp chip and the serial signal input terminal of A/D converter connect, the dsp chip
Reception clock end and tranmitting data register end connect with the serial clock output end of A/D converter, one of the dsp chip is logical
Allow to hold with the reset terminal of A/D converter and asynchronous input respectively with the end I/O and connect.
4. a kind of Portable train stationarity tester based on WIFI according to claim 3, which is characterized in that described
Front end WIFI telecommunication circuit include WIFI chip, light emitting diode, the 4th resistance, the 5th resistance, the 6th resistance, the 8th capacitor,
The WIFI of 9th capacitor, the tenth capacitor, the 11st capacitor, first switch and the second switch, the WIFI chip starts indication end
It is connected through the anode of the 4th resistance and light emitting diode, the minus earth of the light emitting diode, the power supply of the WIFI chip
Output end is connect with the first end of the 5th resistance and the 6th resistance respectively, and the second end of the 5th resistance connects through first switch
Ground, the 8th capacitor is in parallel with first switch, and the first reset terminal of the WIFI chip is connect with the second end of the 5th resistance,
The second end of 6th resistance is grounded through second switch, and the 9th capacitor is in parallel with second switch, the WIFI chip
Second reset terminal is connect with the second end of the 6th resistance, and the serial ports receiving end of the WIFI chip and the serial ports of dsp chip are sent
End connection, the serial ports transmitting terminal of the WIFI chip and the serial ports receiving end of dsp chip connect, and the power supply of the WIFI chip is defeated
Enter and terminate power supply, the power input of the WIFI chip is through the tenth capacity earth, the 11st capacitor and the tenth electricity
Hold in parallel.
5. a kind of Portable train stationarity tester based on WIFI according to claim 1, which is characterized in that described
Back-end system includes mobile terminal, and the mobile terminal is communicated by WIFI network and front end WIFI telecommunication circuit.
6. a kind of Portable train stationarity tester based on WIFI according to claim 5, which is characterized in that described
Back-end system further includes cloud server, and the cloud server is communicated by communication network and mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821121009.8U CN208333888U (en) | 2018-07-16 | 2018-07-16 | A kind of Portable train stationarity tester based on WIFI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821121009.8U CN208333888U (en) | 2018-07-16 | 2018-07-16 | A kind of Portable train stationarity tester based on WIFI |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208333888U true CN208333888U (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821121009.8U Expired - Fee Related CN208333888U (en) | 2018-07-16 | 2018-07-16 | A kind of Portable train stationarity tester based on WIFI |
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| Country | Link |
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| CN (1) | CN208333888U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883727A (en) * | 2019-03-07 | 2019-06-14 | 唐山百川智能机器股份有限公司 | Portable vehicle stable detection system |
| CN110320058A (en) * | 2019-08-12 | 2019-10-11 | 成都西交智众科技有限公司 | A kind of portable vehicle running stability analyzer |
-
2018
- 2018-07-16 CN CN201821121009.8U patent/CN208333888U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883727A (en) * | 2019-03-07 | 2019-06-14 | 唐山百川智能机器股份有限公司 | Portable vehicle stable detection system |
| CN110320058A (en) * | 2019-08-12 | 2019-10-11 | 成都西交智众科技有限公司 | A kind of portable vehicle running stability analyzer |
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