CN203259135U - System for calibrating thickness of water film of road state detection sensor - Google Patents
System for calibrating thickness of water film of road state detection sensor Download PDFInfo
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- CN203259135U CN203259135U CN 201320187889 CN201320187889U CN203259135U CN 203259135 U CN203259135 U CN 203259135U CN 201320187889 CN201320187889 CN 201320187889 CN 201320187889 U CN201320187889 U CN 201320187889U CN 203259135 U CN203259135 U CN 203259135U
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- supercharge pump
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Abstract
The utility model relates to a system for calibrating the thickness of a water film of a road state detection sensor. The system comprises a water tank used for installing a road state detection sensor to be calibrated and connecting other devices, a differential pressure transmitter used for verifying the thickness of liquid in the water tank, two flow meters used for metering the volume of liquid flowing in the water tank and the volume of liquid flowing out of the water tank, two solenoid valves used for controlling flow and cutoff of liquid in a pipeline, two booster pumps used for pressurizing the liquid in the pipeline, a control circuit board used for driving the solenoid valves and communicating with an upper computer system, and the upper computer system used for carrying out man-machine interaction, receiving data of the differential pressure transmitter and the sensor to be calibrated and sending an instruction to the control circuit board. The system for calibrating the thickness of the water film of the road state detection sensor has good precision and stability, can be used for improving the efficiency of a calibration process and the accuracy of a calibration result and enables the transformation of the road state detection sensor from artificial calibration to automatic calibration to be realized.
Description
Technical field
The utility model relates to a kind of sensor calibration system, belongs to sensor technical field.
Background technology
In the manufacturing process of pavement detection system, the demarcation of sensor is a very important process, and this process can play very large impact to the accuracy of the pavement detection system made at last.The calibration process of pavement detection system in the market all is to rely on manually-operated to finish.If calibration process relies on and manually finishes, so whole process can be consuming time very long, and operation is also very loaded down with trivial details, and the result also introduces personal error easily; Rely in addition and manually realize high temperature and low temperature demarcation, must open constant temperature oven, can cause so the inconstant impact of temperature.
Summary of the invention
Goal of the invention: a kind of calibration system for pavement state detecting sensor water film thickness is provided, use this system and can eliminate the error that manual operation causes in the calibration process, and the proving operation of the personnel's that simplify the operation complexity, solve inconvenient problem of in constant temperature oven, carrying out high temperature and low temperature test.
Technical scheme: a kind of calibration system for pavement state detecting sensor water film thickness, comprise that tank, water yield ramp metering module, the water yield flow out control module, differential pressure transmitter, control circuit board, and the master system that connects described control circuit board; Wherein:
Described tank comprises first interface, the second interface that is positioned at bottom of gullet and first, second sensor interface that connects pavement state detecting sensor to be calibrated;
Described water yield ramp metering module comprises the first supercharge pump, first flow meter, the first solenoid valve that connects successively by water pipe, and the other end of described the first solenoid valve is connected to tank, and the other end of described the first supercharge pump connects external water source; The control end of described the first supercharge pump, the first solenoid valve, and the signal output part of first flow meter is connected respectively to described control circuit board;
The described water yield flows out control module and comprises the second supercharge pump, the second flowmeter, the second solenoid valve that connects successively by water pipe, and the other end of described the second supercharge pump connects the second interface of described tank; The control end of described the second supercharge pump, the second solenoid valve, and the signal output part of the second flowmeter is connected respectively to described control circuit board;
Described differential pressure transmitter connects the first interface of described tank, and the signal output part of described differential pressure transmitter connects described master system;
Described master system is used for setting the calibration value of pavement state detecting sensor to be calibrated, after receiving the nominal data of pavement detection system sensor to be calibrated and processing, the work of output signal described the first supercharge pump of control, the second supercharge pump, the first solenoid valve, two solenoid valves behind the described control circuit board.
Beneficial effect: one, operating personnel only need to input data in the master system software interface, and the control and measurement operation of the water yield can rely on native system automatically to finish; Two, the calibration result finished of dependence equipment can reduce the manually-operated impact; Three, the native system device can be put into constant temperature oven, and system and device can automatically be finished in the situation of not opening constant temperature oven and add water and discharge water in the calibration process.The utility model can have been realized the water film thickness robotization demarcation of many pavement detection systems, simplifies calibration process and makes calibration result more accurate.
Description of drawings
Fig. 1 is a kind of calibration system structural representation for pavement state detecting sensor water film thickness;
Fig. 2 is the plan structure synoptic diagram of tank.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
As described in Figure 1, a kind of calibration system for pavement state detecting sensor water film thickness, comprise that tank 108, water yield ramp metering module, the water yield flow out control module, differential pressure transmitter 107, control circuit board 105, and the master system 106 that connects control circuit board 105 by serial ports.Wherein:
As shown in Figure 2, tank 108 comprises first interface 201, the second interface 202 that is positioned at bottom of gullet and the first interface 203 that connects pavement state detecting sensor to be calibrated, the second interface 204.
Water yield ramp metering module comprises that successively the other end of the first supercharge pump 109 of connecting by water pipe, first flow meter 102, the first solenoid valve 101, the first solenoid valves 101 is fixed on tank 108 tops, and the other end of the first supercharge pump connects external water source.The control end of the first supercharge pump 109, the first solenoid valve 101, and the signal output part of first flow meter 102 is connected respectively to control circuit board 105.
The water yield flows out the second interface 202 that control module comprises the other end connection water channel 108 of the second supercharge pump 110 of connecting by water pipe successively, the second flowmeter 104, the second solenoid valve 103, the second supercharge pumps 110.The control end of the second supercharge pump 110, the second solenoid valve 103, and the signal output part of the second flowmeter 104 is connected respectively to control circuit board 105.
The first interface 201 of differential pressure transmitter 107 connection water channels 108 for the thickness of measuring tank liquid, sends to master system 106 with the data result of measuring by serial ports.
Wherein, flow is counted LWGY type turbine flow transducer, the normal operation output pulse signal.Differential pressure transmitter is the PPM-T3051 intelligent differential pressure transmitter of customization, and the thickness range of measuring moisture film is 0-10mm, and accuracy is 0.5%FS, can the Measurement accuracy effluent trough in the thickness of water.
Operating personnel will calibration point value be input to master system 106; Master system 106 sends the value that differential pressure transmitter 107 is read in order, the volume of superfluous water in the volume of the required water of master system 106 automatic water calculating grooves or the tank then, and corresponding order issued control circuit board 105.Control circuit board 105 is controlled opening of the first solenoid valve 101 or the second solenoid valve 103 according to the order that receives, and begins to receive the signal of first flow meter 102 or the second flowmeter 104.When the flow signal of control circuit board 105 receptions reaches calculated value, just close immediately corresponding solenoid valve, and send it back the order of reporting on completion of a task to master system 106.Master system 106 sends the value that differential pressure transmitter 107 is read in order again, and make difference with calibration value and compare, if difference sends order to control circuit board 105 so again greater than error amount, repeat above-mentioned steps, until difference less than error amount, makes the thickness of water in the tank 108 approach the thickness of input calibration value.At this moment, master system 106 sends phase value and the range value that pavement detection sensor liquid level induction to be calibrated is read in order, then calibration value, phase value, range value is write the preservation file, writes in the program of pavement detection sensor at last again.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (1)
1. calibration system that is used for pavement state detecting sensor water film thickness, it is characterized in that: comprise that tank, water yield ramp metering module, the water yield flow out control module, differential pressure transmitter, control circuit board, and the master system that connects described control circuit board; Wherein:
Described tank comprises first interface, the second interface that is positioned at bottom of gullet and first, second sensor interface that connects pavement state detecting sensor to be calibrated;
Described water yield ramp metering module comprises the first supercharge pump, first flow meter, the first solenoid valve that connects successively by water pipe, and the other end of described the first solenoid valve is connected to tank, and the other end of described the first supercharge pump connects external water source; The control end of described the first supercharge pump, the second supercharge pump, and the signal output part of first flow meter is connected respectively to described control circuit board;
The described water yield flows out control module and comprises the second supercharge pump, the second flowmeter, the second solenoid valve that connects successively by water pipe, and the other end of described the second supercharge pump connects the second interface of described tank; The control end of described the second supercharge pump, the second solenoid valve, and the signal output part of the second flowmeter is connected respectively to described control circuit board;
Described differential pressure transmitter connects the first interface of described tank, and the signal output part of described differential pressure transmitter connects described master system;
Described master system is used for setting the calibration value of pavement state detecting sensor to be calibrated, after receiving the nominal data of pavement detection system sensor to be calibrated and processing, the work of output signal described the first supercharge pump of control, the second supercharge pump, the first solenoid valve, second solenoid valve behind the described control circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187889 CN203259135U (en) | 2013-04-15 | 2013-04-15 | System for calibrating thickness of water film of road state detection sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187889 CN203259135U (en) | 2013-04-15 | 2013-04-15 | System for calibrating thickness of water film of road state detection sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203259135U true CN203259135U (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320187889 Expired - Fee Related CN203259135U (en) | 2013-04-15 | 2013-04-15 | System for calibrating thickness of water film of road state detection sensor |
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| CN (1) | CN203259135U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234489A (en) * | 2013-04-15 | 2013-08-07 | 东南大学 | Calibration system and calibration method for water film thickness of road surface condition detection sensor |
| CN107975677A (en) * | 2017-11-24 | 2018-05-01 | 新疆润霖新能源技术有限公司 | Threshold limit values metering device and its application method |
| CN108387203A (en) * | 2018-03-05 | 2018-08-10 | 刘娜 | A kind of electronic circuit board test detection device |
-
2013
- 2013-04-15 CN CN 201320187889 patent/CN203259135U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234489A (en) * | 2013-04-15 | 2013-08-07 | 东南大学 | Calibration system and calibration method for water film thickness of road surface condition detection sensor |
| CN107975677A (en) * | 2017-11-24 | 2018-05-01 | 新疆润霖新能源技术有限公司 | Threshold limit values metering device and its application method |
| CN107975677B (en) * | 2017-11-24 | 2023-10-17 | 新疆润霖新能源技术有限公司 | Safety limit metering device and use method thereof |
| CN108387203A (en) * | 2018-03-05 | 2018-08-10 | 刘娜 | A kind of electronic circuit board test detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20160415 |
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| CF01 | Termination of patent right due to non-payment of annual fee |