CN202903423U - Calibration apparatus for wireless wind pressure monitor - Google Patents
Calibration apparatus for wireless wind pressure monitor Download PDFInfo
- Publication number
- CN202903423U CN202903423U CN 201220656256 CN201220656256U CN202903423U CN 202903423 U CN202903423 U CN 202903423U CN 201220656256 CN201220656256 CN 201220656256 CN 201220656256 U CN201220656256 U CN 201220656256U CN 202903423 U CN202903423 U CN 202903423U
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- China
- Prior art keywords
- solenoid valve
- chip microcomputer
- air pump
- pressure cylinder
- wind pressure
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Abstract
The utility model discloses a calibration apparatus for a wireless wind pressure monitor. The calibration apparatus comprises an electric air pump, an air reservoir, a constant pressure cylinder solenoid valve, a constant pressure cylinder, and a test connecting seat, which are sequentially connected through air pipes. The air pipe between the electric air pump and the air reservoir are sequentially provided with a non-return valve and an oil-water separator. The air reservoir is provided with a pressure sensor. The constant pressure cylinder is also connected with a precise digital pressure gauge and an exhaust solenoid valve. The pressure sensor, the constant pressure cylinder solenoid valve, the precise digital pressure gauge, and the exhaust solenoid valve are all connected to a one-chip microcomputer. The one-chip microcomputer is also connected with an air pump electronic switch which is connected with the electric air pump. The calibration apparatus can be used to accurately detect whether the wireless wind pressure monitor is qualified or not.
Description
Technical field
The utility model relates to rail vehicle brake monitoring device technique field, specifically a kind of wireless wind pressure monitor calibration equipment.
Background technology
Railway systems are the Important Economic lifeblood of our country, are undertaking heavy freight transportation workload, transport safely, have a great responsibility.The use of rail vehicle brake monitoring device has replaced many disadvantages of manual detection, has promoted the technological means that the rolling stock brake detects, and ensures safety with science and technology, lays a good foundation for transporting safely to produce, and has effectively prevented the generation of a lot of accident risks.The major function of rail vehicle brake monitoring device is the pressure variety of the braking air main of monitoring rail vehicle.AT STATION, the front end of the train of stop fills wind by locomotive or ground interview wind apparatus to the rail vehicle air main, and the last vehicle of train air main connects the wireless wind pressure monitor of rail vehicle brake monitoring device.The pressure of this equipment Real-Time Monitoring air main changes, and pressure data is uploaded to the computer data terminal of duty room by wireless transmission method, data terminal judges according to relevant regulations train braking device tests whether whether acceptable quality is up to standard according to data formation pressure/time curve.Wireless wind pressure monitor is the vitals of this equipment, the whether accurate safety that determines train operation of wireless wind pressure monitor.To wireless wind pressure monitor standardize detect imperative.In order to produce service for the transportation by railroad traffic safety better, ensure safety, protect transportation, protect unimpeded, with the function of giving full play to rail vehicle brake monitoring device, improve accuracy, reliability and the utilization rate of this equipment, it is the technical matters that those skilled in the art need to be resolved hurrily that a kind of wireless wind pressure monitor calibration equipment is provided.
In view of this, the innovation that designer of the present utility model is actively studied is finally developed a kind of wireless wind pressure monitor calibration equipment, to address the above problem.
The utility model content
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of wireless wind pressure monitor calibration equipment, and whether can accurately detect wireless wind pressure monitor qualified.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
The wireless wind pressure monitor calibration equipment, comprise: the electric air pump that connects successively by tracheae, air reservoir, the level pressure cylinder solenoid valve, level pressure cylinder and test Connection Block, wherein be provided with successively retaining valve and oil-water separator on the tracheae between electric air pump and the air reservoir, air reservoir is provided with pressure transducer, the level pressure cylinder also is connected with precision digital tensimeter and exhaust solenoid valve, pressure transducer, the level pressure cylinder solenoid valve, precision digital tensimeter and exhaust solenoid valve are connected to single-chip microcomputer, described single-chip microcomputer also is connected with the air pump electronic switch, and the air pump electronic switch connects electric air pump.
Further, described single-chip microcomputer is connected with terminal by USB interface.
Further, described single-chip microcomputer is connected with verification starting switch and test starting switch.
Further, described level pressure cylinder solenoid valve is connected with the width modulation port of single-chip microcomputer with exhaust solenoid valve.
Compared with prior art, the beneficial effects of the utility model are:
Whether the utility model can accurately detect wireless wind pressure monitor qualified, and can store and put on record.One-piece construction is simple, convenient operation.Use flexibly.
Description of drawings
Fig. 1 is the structured flowchart of wireless wind pressure monitor calibration equipment of the present utility model;
Fig. 2 is the electrical schematic diagram of the preferred embodiment of wireless wind pressure monitor calibration equipment of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, but not as to restriction of the present utility model.
Fig. 1 is the structured flowchart of wireless wind pressure monitor calibration equipment of the present utility model; Fig. 2 is the electrical schematic diagram of the preferred embodiment of wireless wind pressure monitor calibration equipment of the present utility model.As depicted in figs. 1 and 2, the wireless wind pressure monitor calibration equipment comprises: the electric air pump 1 that connects successively by tracheae 2, air reservoir 5, level pressure cylinder solenoid valve 7, level pressure cylinder 9 and test Connection Block 11.Wherein electric air pump 1 is Miniature electric air pump, is provided with successively retaining valve 3 and oil-water separator 4 on the tracheae 2 between itself and the air reservoir 5, and air reservoir 5 is provided with pressure transducer 6.Level pressure cylinder 9 also is connected with precision digital tensimeter 8 and exhaust solenoid valve 10, and pressure transducer 6, level pressure cylinder solenoid valve 7, precision digital tensimeter 8 and exhaust solenoid valve connect 10 and be connected to single-chip microcomputer 12.Single-chip microcomputer 12 also is connected with air pump electronic switch 15, and air pump electronic switch 15 connects electric air pump 1.Single-chip microcomputer 12 is connected with terminal 19 by usb 14.Single-chip microcomputer 12 is connected with verification starting switch 16 and test starting switch 17.Level pressure cylinder solenoid valve 7 is connected with exhaust solenoid valve and is connected with the width modulation port of single-chip microcomputer 12.
The course of work of the present utility model is as follows:
Calibration equipment of the present utility model powers on, the normal rear drive air pump of single-chip microcomputer 12 System self-test electronic switch 15 closures, electric air pump 1 work, tracheae 2 passes through retaining valve 3, oil-water filter 4 to air reservoir 5 gas transmissions, when the pressure transducer 6 monitoring air pressure change on the air reservoir reach setting, single-chip microcomputer 12 cuts out air pump electronic switch 15, and equipment is carried out verification preliminary work.
1～5 wireless wind pressure monitor 18 start is in running order, is installed on the test Connection Block 11.
1, linearity test:
Press test starting switch 17, single-chip microcomputer 12 starts the linearity test program, by the PWM(width modulation) drive level pressure cylinder electromagnetic gas valve 7 and open, by tracheae 2 to 9 gas transmissions of level pressure cylinder, precision digital tensimeter 8 Real-Time Monitorings show that level pressure cylinder 9 internal gas pressures change, and by data line data are passed to single-chip microcomputer 12.The data that single-chip microcomputer 12 transmits according to precision digital tensimeter 8, control PWM drives level pressure cylinder electromagnetic gas valve 7 and gradually reduces air inflow, and single-chip microcomputer 12 cuts out level pressure cylinder electromagnetic gas valve 7 when reaching the authorised pressure value.
Single-chip microcomputer 12 receives the pressure data that precision digital tensimeter 8 transmits and is uploaded in real time terminal 19 by usb 14.
After single-chip microcomputer 12 starts, regularly send instruction to wireless wind pressure monitor 18 by wireless data transmission module 13, after wireless wind pressure monitor 18 was received instruction, timesharing returned the pressure delta data that monitors in real time.Single-chip microcomputer 12 is crossed usb 14 with the data communication device that receives and is uploaded in real time terminal 19.
Single-chip microcomputer 12 detects one by one according to 4 reference point force value of 300KPa--600KPa of setting, detects complete single-chip microcomputer 12 and drives exhaust electromagnetic gas valve 10, and level pressure cylinder 9 internal gas pressures are released.
Terminal 19 goes out pressue-graph with the data real-time depiction of precision digital tensimeter 8 and 1～5 wireless wind pressure monitor 18, detect complete after, count the comprehensive pressure difference of wireless wind pressure monitor 18 and precision digital tensimeter 8, determine whether qualified and storage is put on record.
2, pressure checking:
1 wireless wind pressure monitor 18 start is in running order, be installed on the test Connection Block 11, press verification starting switch 16, single-chip microcomputer 12 starts checking routine, PWM drives level pressure cylinder electromagnetic gas valve 7 and opens by tracheae 2 to 9 gas transmissions of level pressure cylinder, single-chip microcomputer 12 changes by precision digital tensimeter 8 Real-Time Monitoring level pressure cylinders 9 internal gas pressures, during near setting, single-chip microcomputer 12 drives level pressure cylinder electromagnetic gas valve 7 by PWM and constantly reduces air inflow, stop level pressure cylinder electromagnetic gas valve 7 when reaching the 600KPa force value.Precision digital tensimeter 8 is uploaded to single-chip microcomputer 12 to the pressure data of monitoring in real time with wireless wind pressure monitor 18, single-chip microcomputer 12 by usb 14 in real time with both data upload to terminal 19, according to criterion, judge that wireless wind pressure monitor 18 is whether qualified and store and put on record.
Underproof wireless wind pressure monitor 18 is adjusted to checking mode by panel button.Utilize+,-button adjustment pressure value is identical with the pressure value that the precision digital tensimeter shows, presses acknowledgement key, after the Program time delay certain hour is stored data, drives exhaust solenoid valve 10, and level pressure cylinder 9 interior gas are released, and pressure checking is complete.
Above embodiment is exemplary embodiment of the present utility model only, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection domain, this modification or be equal to replacement and also should be considered as dropping in the protection domain of the present utility model.
Claims (4)
1. wireless wind pressure monitor calibration equipment, it is characterized in that, comprise: the electric air pump that connects successively by tracheae, air reservoir, the level pressure cylinder solenoid valve, level pressure cylinder and test Connection Block, wherein be provided with successively retaining valve and oil-water separator on the tracheae between electric air pump and the air reservoir, air reservoir is provided with pressure transducer, the level pressure cylinder also is connected with precision digital tensimeter and exhaust solenoid valve, pressure transducer, the level pressure cylinder solenoid valve, precision digital tensimeter and exhaust solenoid valve are connected to single-chip microcomputer, described single-chip microcomputer also is connected with the air pump electronic switch, and the air pump electronic switch connects electric air pump.
2. wireless wind pressure monitor calibration equipment according to claim 1 is characterized in that, described single-chip microcomputer is connected with terminal by USB interface.
3. wireless wind pressure monitor calibration equipment according to claim 1 is characterized in that, described single-chip microcomputer is connected with verification starting switch and test starting switch.
4. wireless wind pressure monitor calibration equipment according to claim 1 is characterized in that, described level pressure cylinder solenoid valve is connected with the width modulation port of single-chip microcomputer with exhaust solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656256 CN202903423U (en) | 2012-11-23 | 2012-11-23 | Calibration apparatus for wireless wind pressure monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656256 CN202903423U (en) | 2012-11-23 | 2012-11-23 | Calibration apparatus for wireless wind pressure monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202903423U true CN202903423U (en) | 2013-04-24 |
Family
ID=48124082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220656256 Expired - Lifetime CN202903423U (en) | 2012-11-23 | 2012-11-23 | Calibration apparatus for wireless wind pressure monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202903423U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547575A (en) * | 2016-01-25 | 2016-05-04 | 广东菲柯特电子科技有限公司 | Tire pressure instrument detection system |
-
2012
- 2012-11-23 CN CN 201220656256 patent/CN202903423U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547575A (en) * | 2016-01-25 | 2016-05-04 | 广东菲柯特电子科技有限公司 | Tire pressure instrument detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |