CN2653473Y - Wind pressure measurer for train tail - Google Patents
Wind pressure measurer for train tail Download PDFInfo
- Publication number
- CN2653473Y CN2653473Y CN 03271233 CN03271233U CN2653473Y CN 2653473 Y CN2653473 Y CN 2653473Y CN 03271233 CN03271233 CN 03271233 CN 03271233 U CN03271233 U CN 03271233U CN 2653473 Y CN2653473 Y CN 2653473Y
- Authority
- CN
- China
- Prior art keywords
- housing
- circuit
- wind pressure
- train tail
- measurement mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a wind pressure measuring device for train tail, comprising a housing and a circuit board arranged in the housing, which is characterized in that the housing is provided with a soft tube, and the place corresponding with the soft tube in the housing is provided with a pressure sensor connected with the circuit board through a lead. Besides, a LCD is further arranged on the housing. The utility model has the characteristics of an easy operation and an accurate measurement.
Description
Technical field
The device that the utility model relates to a kind of goods train when making brake experiment, especially a kind of measurement mechanism of train tail wind pressure.
Background technology
According to railway freight-car utilization maintenance instruction, when lorry is made brake experiment, station inspector should be installed the wind table of experiment usefulness on last car of last vehicle of train, in order to confirm whether be responsible for blast reaches the authorised pressure value, but manual measurement exists uncertainty, and does not have with various examination wind devices such as the big lock of pulpit, automatically controlled examination blower fan, micro-control examination blower fans and directly to get in touch, and can't directly control the row tail and be responsible for blast, cause the result inaccurate, this is the shortcoming of prior art.
Summary of the invention
The purpose of this utility model provide a kind of easy to operate, measure accurately, the reliable train tail wind pressure measurement mechanism of transmission, row tail wind pressure measurement and control when being used for brake experiment can effectively overcome the shortcoming of prior art.
The purpose of this utility model is realized by following technical scheme, it comprises housing, switch, circuit board is installed in housing, it is characterized in that: flexible pipe is installed on housing, in the corresponding flexible pipe of enclosure interior position pressure transducer is installed, pressure transducer links to each other with circuit board by lead, and LCD also is installed on housing.Data check and correction button is installed in housing.End at flexible pipe is equipped with connector.In housing, also be provided with the data transmission radio station.Described connector is a wind gauge stand, is connected with a fast plug in a side of wind gauge stand, is used to connect the flexible pipe on the housing, and opposite side directly is connected with row tail airduct.Circuit part of the present utility model comprises the pressure data Acquisition Circuit, it is characterized in that: the pressure data Acquisition Circuit links to each other with the A/D change-over circuit, the A/D change-over circuit links to each other with processor, on processor, also be connected with data storage circuitry, store the code of this device, make the inspection of same row in each device phenomenon that can not occur misinformating.Also be connected with display circuit and data collating circuit on the processor.Processor also links to each other with the data transmission radio station by data transmission circuit.Described A/D conversion chip is AD7705, and processor is single-chip microcomputer 89C51, and pin-saving chip is E
2PROM, pressure transducer in the data acquisition circuit is MSP-600, its annexation is Ain1 (+) pin that meets AD7705 behind the signal output part resistance in series R1 of pressure transducer, this pin is ground connection behind the resistance in series R2 also, connect power supply behind Ain2 (+) the pin resistance in series R4 of AD7705, be used to monitor supply voltage, this pin is ground connection behind the resistance in series R3 also, connect power supply behind REFin (+) the pin resistance in series R5 of AD7705, this pin ground connection behind the stabilivolt D1 of also connecting, the Vdd of AD7705 connects power supply, the SCLK of AD7705, DIN, DOUT, DRDY, REST, the CS pin respectively with the P10 of 89C51, P14, P15, P16, P17, the P05 pin links to each other, the REFin (-) of AD7705, Ain2 (-), Ain1 (-), the GND pin is ground connection all, the crystal oscillator of connecting between the MCLKin of AD7705 and the MCLKout, the P11 of 89C51, P12, P13 connects E respectively
2The WP of PROM24C02, SCC, SDA pin, the crystal oscillator of connecting between the XTEAL2 of 89C51 and the XTEAL1, the GND pin ground connection of 89C51, V
CCPin connects power supply.The P02 of 89C51, P03, P04 and P06 pin meet LCD, the P00 of 89C51, P20, the P27 ground connection behind button K1, K2, the K3 of connecting respectively.In order to realize the transmission of data, the P30 of 89C51, P31 also link to each other with the Data transmission radio that has MODEM by the MAX202 chip with the P21 pin.
The utility model is owing to adopt technique scheme, the blast simulating signal that pressure transducer is measured, be converted to digital signal by the A/D chip and send CPU to, be stored in the storer at last, and demonstrate current wind pressure value by LCD, also can adjust circuit and proofread and correct demonstration numerical value by data, and as required data are given the relevant device of pulpit by the Data transmission radio teletransmission by MODEM, for brake experiment provides pressure parameter accurately and reliably, therefore the utlity model has easy to use, measurement characteristic of accurate, improved the q﹠r of row inspections.
Description of drawings
Fig. 1 is a physical construction synoptic diagram of the present utility model.
Fig. 2 is circuit block of the present utility model road figure
Fig. 3 is a circuit structure connection diagram of the present utility model.
In the accompanying drawing, 1-housing, 2-circuit board, 3-flexible pipe, 4-pressure transducer, 5-LCD, 6-button, 7-wind gauge stand, 8-data transmission radio station, the fast plug of 9-, 10-switch.
Embodiment
That the utility model is described in further detail is as follows below in conjunction with accompanying drawing:
The utility model comprises housing 1, switch 10, circuit board 2 is installed in housing 1, it is characterized in that: flexible pipe 3 is installed on housing 1, in housing 1 inner corresponding flexible pipe 3 positions pressure transducer 4 is installed, pressure transducer 4 links to each other with circuit board 2 by lead.LCD5 also is installed on housing 1, data check and correction button 6 is installed in housing, it links to each other with circuit board 2 by lead respectively.End at flexible pipe 3 is equipped with connector.In housing 1, also be provided with data transmission radio station 8.Described connector comprises a wind gauge stand 7, is connected with a fast plug 9 in a side of wind gauge stand 7, is used to connect the flexible pipe 3 on the housing 1, and opposite side directly is connected with row tail airduct.Circuit part of the present utility model comprises the pressure data Acquisition Circuit, it is characterized in that: the pressure data Acquisition Circuit links to each other with the A/D change-over circuit, the A/D change-over circuit links to each other with processor, on processor, also be connected with data storage circuitry, store the code of this device, make the inspection of same row in each device phenomenon that can not occur misinformating.Also be connected with display circuit and data collating circuit on the processor.Processor also links to each other with the data transmission radio station by data transmission circuit.Described A/D conversion chip is AD7705, and processor is single-chip microcomputer 89C51, and pin-saving chip is E
2PROM, pressure transducer in the data acquisition circuit is MSP-600, its annexation is Ain1 (+) pin that meets AD7705 behind the signal output part resistance in series R1 of pressure transducer, this pin is ground connection behind the resistance in series R2 also, connect power supply behind Ain2 (+) the pin resistance in series R4 of AD7705, be used to monitor supply voltage, this pin is ground connection behind the resistance in series R3 also, connect power supply behind REFin (+) the pin resistance in series R5 of AD7705, this pin ground connection behind the stabilivolt D1 of also connecting, the Vdd of AD7705 connects power supply, the SCLK of AD7705, DIN, DOUT, DRDY, REST, the CS pin respectively with the P10 of 89C51, P14, P15, P16, P17, the P05 pin links to each other, the REFin (-) of AD7705, Ain2 (-), Ain1 (-), the GND pin is ground connection all, the crystal oscillator of connecting between the MCLKin of AD7705 and the MCLKout, the P11 of 89C51, P12, P13 connects E respectively
2The WP of PROM24C02, SCC, SDA pin, the crystal oscillator of connecting between the XTEAL2 of 89C51 and the XTEAL1, the GND pin ground connection of 89C51, V
CCPin connects power supply.The P02 of 89C51, P03, P04 and P06 pin meet LCD, the P00 of 89C51, P20, the P27 ground connection behind button K1, K2, the K3 of connecting respectively.In order to realize the transmission of data, the P30 of 89C51, P31 also link to each other with the Data transmission radio that has MODEM by the MAX202 chip with the P21 pin.CPU of the present utility model, A/D chip also can adopt other existing chips.It has easy to use, measurement characteristic of accurate.
Claims (8)
1, train tail wind pressure measurement mechanism, it comprises housing, circuit board is installed in housing, it is characterized in that: flexible pipe is installed on housing, in the corresponding flexible pipe of enclosure interior position pressure transducer is installed, pressure transducer links to each other with circuit board by lead, and LCD also is installed on housing.
2, train tail wind pressure measurement mechanism according to claim 1 is characterized in that: be provided with data check and correction button in housing.
3, train tail wind pressure measurement mechanism according to claim 1, it is characterized in that: the end at flexible pipe is equipped with connector.
4, train tail wind pressure measurement mechanism according to claim 1 and 2 is characterized in that: also be provided with the data transmission radio station in housing.
5, train tail wind pressure measurement mechanism according to claim 3 is characterized in that: described connector is a wind gauge stand, is connected with a fast plug in a side of wind gauge stand, is used to connect the flexible pipe on the housing, and opposite side can directly link to each other with row tail airduct.
6, train tail wind pressure measurement mechanism according to claim 1, it is characterized in that: circuit part comprises the pressure data Acquisition Circuit, the pressure data Acquisition Circuit links to each other with the A/D change-over circuit, the A/D change-over circuit links to each other with processor, also is connected with data storage circuitry and display circuit on processor.
7, train tail wind pressure measurement mechanism according to claim 6 is characterized in that: also be connected with the data collating circuit on the processor.
8, train tail wind pressure measurement mechanism according to claim 6 is characterized in that: processor also links to each other with the data transmission radio station by data transmission circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03271233 CN2653473Y (en) | 2003-07-29 | 2003-07-29 | Wind pressure measurer for train tail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03271233 CN2653473Y (en) | 2003-07-29 | 2003-07-29 | Wind pressure measurer for train tail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2653473Y true CN2653473Y (en) | 2004-11-03 |
Family
ID=34330702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03271233 Expired - Fee Related CN2653473Y (en) | 2003-07-29 | 2003-07-29 | Wind pressure measurer for train tail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2653473Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727303A (en) * | 2017-10-26 | 2018-02-23 | 国网福建省电力有限公司 | A kind of Portable wind pressure sensor device |
-
2003
- 2003-07-29 CN CN 03271233 patent/CN2653473Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727303A (en) * | 2017-10-26 | 2018-02-23 | 国网福建省电力有限公司 | A kind of Portable wind pressure sensor device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |