CN207336084U - A kind of city railway vehicle experimental rig of Bluetooth transmission - Google Patents
A kind of city railway vehicle experimental rig of Bluetooth transmission Download PDFInfo
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- CN207336084U CN207336084U CN201721128441.5U CN201721128441U CN207336084U CN 207336084 U CN207336084 U CN 207336084U CN 201721128441 U CN201721128441 U CN 201721128441U CN 207336084 U CN207336084 U CN 207336084U
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- bluetooth
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- conditioning circuit
- signal conditioning
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Abstract
A kind of city railway vehicle experimental rig of Bluetooth transmission, its main feature is that voltage sensor, current sensor and acceleration transducer each connect signal conditioning circuit respectively, signal conditioning circuit connects respective corresponding Bluetooth chip respectively, Bluetooth chip connects corresponding reception chip, the signal conditioning circuit uses operational amplifier, for sensor output signal to be changed into electric signal, it is sent in Bluetooth chip；The reception chip and Bluetooth chip are man-to-man transmission relations, and by the way of locking mutually, different Bluetooth transmission wave bands is different, prevents from interfering with each other, avoids the connection error during connection；Chip is received by USB interface with computer to be connected, can flexibly it plug, solve the problems, such as that subway train live wire in type approval test pulls, and measure electric box in element physical quantity when can solution must not fasten wiring chamber door the problem of, it ensure that the security that vehicle is run during testing, reduce the quantity of testing crew, improve test efficiency.
Description
Technical field
The utility model belongs to rail vehicle experimental test field, and in particular to city railway vehicle type approval test measuring device.
Background technology
At present, the type approval test of subway train is surveyed using external test equipment, harvester, data processing host
Amount, instrument is placed in compartment, and the equipment of sensors measure physical amount is placed on underbody or roof more, vehicle in assembling not
The connecting groove of reserved testing equipment, so test connection is usually all by cabling outside car, line is complicated, easily causes electric wire dragging
Phenomenon.And sometimes for placing a sensor in junction box, wiring chamber door can not be made during signal wire is drawn
Fasten, can only be left unlocked or unlatched on request, carry out security risk to test tape.So improving, wiring during experiment is cumbersome, it is tight to pull phenomenon
The problem of weight, guarantee test process safety is imperative.
Utility model content
The utility model is designed for deficiency more than being found during experiment, it is intended to improves city railway vehicle experiment
During line between sensor and test equipment it is inconvenient the problem of, the security of guarantee test.This discovery is by using with bluetooth
Signal transmission substitution wired electric signal transmission, Bluetooth transmission using one-to-one, transmit by the mode locked mutually, and receiving module uses
USB interface is connected with data processing host, can flexibly be plugged, and data host is customization host.
To achieve the above object, the utility model provides a kind of city railway vehicle experimental rig of Bluetooth transmission, including sensing
Device, it is characterised in that：Further include signal conditioning circuit, Bluetooth chip, receive chip, host, voltage sensor, current sensor
Each connection signal conditioning circuit, signal conditioning circuit connect respective corresponding bluetooth core respectively respectively with acceleration transducer
Piece, Bluetooth chip connect corresponding reception chip, and the signal conditioning circuit uses operational amplifier, for by sensor
Output signal changes into electric signal, is sent in Bluetooth chip；The reception chip is that man-to-man transmission is closed with Bluetooth chip
System, by the way of locking mutually, by setting the several generations and link protocol of bluetooth, makes different bluetooths directly transmit wave band not
Together, prevent from interfering with each other, avoid the connection error during connection；The host is by acquisition interface and Automated library system
Together, acquisition interface selects USB interface, receives chip and is connected by USB interface with computer.
The utility model is transmitted by using with Bluetooth signal transmission substitution wired electric signal, Bluetooth transmission using one-to-one,
The mode locked mutually is transmitted, and receiving module is connected using USB interface with data processing host, can flexibly plug, solve
Subway train in type approval test live wire pull the problem of, and measure electric box in element physical quantity when can solution never
The problem of wiring chamber door can be fastened, it ensure that the security of vehicle operation during experiment, the utility model is passing through setting indigo plant
The mode of tooth agreement, makes the transmission wave band of different types of bluetooth different, avoids the transmission interference between Bluetooth signal.This reality
Also intermediate conversion and data acquisition on the reception integrated chip of the sensor of each measurement and same host, will be reduced with new
Link, reduces vasculum and junction box that the needs during testing carry, provides convenience for experiment, reduce experiment people
The quantity of member, improves test efficiency.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model.
Fig. 2 is signal conditioning circuit connection figure.
Embodiment
The utility model is described in further details below in conjunction with the accompanying drawings.
With reference to Fig. 1, the utility model includes sensor, signal conditioning circuit, Bluetooth chip, reception chip, host, experiment
During use current sensor, voltage sensor, acceleration transducer, the output signal of sensor is as signal conditioning circuit
Input terminal, the input terminal of the output terminal of the signal conditioning circuit as Bluetooth chip, Bluetooth chip adopts with receiving chip
Connected with Bluetooth signal, it is man-to-man transmission relation to receive chip with Bluetooth chip, by the way of locking mutually, receives core
Input terminal of the output terminal of piece as host.
It is analog input signal with reference to Fig. 2, IN_1 and IN_2, is handled by LMV822 type operational amplifiers,
It is filtered into integrating circuit by 5.6pF capacitances, the analog signals most inputted at last are converted into 4-20mA signals.
Operation principle：Sensor, which is connected to vehicle, needs the position tested, the current sensor, voltage sensor,
Signal is transmitted to signal conditioning circuit by acceleration transducer, and the current signal of 4-20mA is converted the signal into by analog-to-digital conversion,
Give the signal to Bluetooth chip again, by being wirelessly transferred, transmit signal to reception chip, most signal gives host at last,
Single chip processing module in host is handled according to signal, and then obtains the data such as the electric current, voltage, acceleration of motor,
Digital output value human-machine interface module is also carried out computing and display output by single chip processing module.
Claims (1)
1. a kind of city railway vehicle experimental rig of Bluetooth transmission, including sensor, it is characterised in that：Further include signal condition electricity
Road, Bluetooth chip, receive chip, host, and voltage sensor, current sensor and acceleration transducer each connect signal respectively
Modulate circuit, signal conditioning circuit connect respective corresponding Bluetooth chip respectively, and Bluetooth chip connects corresponding reception core
Piece, the signal conditioning circuit use operational amplifier, for sensor output signal to be changed into electric signal, are sent to bluetooth
In chip；The reception chip and Bluetooth chip are man-to-man transmission relations, by the way of locking mutually, different indigo plant
Tooth transmits different-waveband；The host be by acquisition interface together with Automated library system, receive chip by USB interface with
Computer is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721128441.5U CN207336084U (en) | 2017-09-04 | 2017-09-04 | A kind of city railway vehicle experimental rig of Bluetooth transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721128441.5U CN207336084U (en) | 2017-09-04 | 2017-09-04 | A kind of city railway vehicle experimental rig of Bluetooth transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207336084U true CN207336084U (en) | 2018-05-08 |
Family
ID=62372340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721128441.5U Active CN207336084U (en) | 2017-09-04 | 2017-09-04 | A kind of city railway vehicle experimental rig of Bluetooth transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207336084U (en) |
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2017
- 2017-09-04 CN CN201721128441.5U patent/CN207336084U/en active Active
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