CN104006782B - Dynamic detection device for position sensor sensing section - Google Patents
Dynamic detection device for position sensor sensing section Download PDFInfo
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- CN104006782B CN104006782B CN201410259606.7A CN201410259606A CN104006782B CN 104006782 B CN104006782 B CN 104006782B CN 201410259606 A CN201410259606 A CN 201410259606A CN 104006782 B CN104006782 B CN 104006782B
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Abstract
The invention discloses a dynamic detection device for a position sensor sensing section. The dynamic detection device comprises a sensor installation platform, a detected object rotating device, a PLC monitoring module and an upper computer. The sensor installation platform is of a frame structure provided with a common sensor installation hole, and a position sensor is installed in the common sensor installation hole. The detected object rotating device is arranged on the opposite face of the sensor installation platform and located within the range of the position sensor sensing section, a speed-adjustable motor is installed at the bottom of the detected object rotating device, the detected object rotating device can be driven by the adjustable motor to rotate around the axis, and a detected object is installed on the detected object rotating device. The PLC monitoring module is connected with a sensor signal line, and the upper computer is connected with the PLC monitoring module through a communication line and used for monitoring the operation condition of the sensor. Through colleting the triggering period of the sensor, the range of the sensing section is calculated, and the changes of the sensor sensing section can be detected in a high-precision mode.
Description
Technical field
The present invention relates to wind electricity change paddle is away from control system blade angle detection device, more particularly, to a kind of position sensor sense
Answer interval device for dynamically detecting.
Background technology
With the further genralrlization of clean energy resource, wind power generating set more and more comes into operation.Variable pitch control system
System is the important device that the above wind power generating set of MW class controls and protects, and is the service brake system of fan parking.For confirming
The accuracy to blade Angle ambiguity for the variable-pitch control system, most manufacturers are combined with position sensor using motor encoder
Mode, feed back blade real-time angular value, calibration blade be located position.
Summarize above-mentioned functions, equipped with position sensor inside blade, the sensing of this sensor is interval for wind power pitch-controlled system
Preserved in the form of angular interval before blower fan is incorporated into the power networks.When blower fan master control requires to rotate blade to given position process
In, position sensor due to detected material through and be triggered, now, pitch-controlled system pass through check code device position feedback with
Position sensor trigger, judges whether actual blade angle deviation.Due to position sensor type selecting and before dispatching from the factory
Need through sampling Detection to run it is therefore desirable to designing a set of special device for dynamically detecting and substituting actual blade.There is sensing
Device producer devises the detection means of sensor sensing distance, but cannot detect sensor sensing interval in dynamic running process
Change.
Content of the invention
For actual motion effect under above-mentioned special operation condition for the test position sensor, proposed by the present invention passed by collection
Sensor triggers the testing scheme of the interval size of computation of Period sensing, being capable of the accurately interval change of detection sensor sensing.
The present invention employs the following technical solutions：
A kind of interval device for dynamically detecting of position sensor sensing, including sensor installing platform, detected material rotation
Device, PLC monitoring module and host computer it is characterised in that：
Described sensor installing platform is the frame structure with general purpose transducer installing hole, and position sensor is arranged on
In described general purpose transducer installing hole；
Described detected material rotary apparatuss are arranged on described sensor installing platform opposite face and are in described position biography
In the sensing interval scope of sensor, described detected material rotary apparatuss bottom is provided with speed adjustable motor, by adjustable motor
Drive described detected material rotary apparatuss to rotate around axle center, described detected material rotary apparatuss are installed detected material；
Described PLC monitoring module is connected with sensor signal lines；
Described host computer is connected with PLC monitoring module by connection, monitors operating sensor situation.
The present invention can also further preferred below scheme：
Described sensor installing platform be a cuboid framework, this cuboid framework is arranged multiple according to circumferential arrangement
General purpose transducer installing hole；Described detected material rotary apparatuss are a disc mounting bracket, in this discoid mounting bracket
On with respect to center of circle symmetric position install multiple detected materials；Described detected material rotary apparatuss rotating speed continuously adjustabe, maximum
Rotating speed is to 20 degree per second.
PLC monitoring module persistently triggers the cycle and is not continuously triggered the cycle according to sensor, in conjunction with rotation platform rotating speed,
Calculate actual sensed angular dimension in sensor dynamic process.
Select specific detected material for particular sensor it is ensured that testing self-consistentency, if sensor occurs not detecting
To the situation of detected material, PLC monitoring module will send alarm signal as prompting.
In initialization procedure, original state lower sensor location sensitive interval size in PLC monitoring module, will be preserved, and
Corresponding numerical value is stored in data base；After entering the actual test stage, sensor triggers the sensing interval obtaining every time will be with
Initialize sensing interval to be compared in real time, and will appear from probability peak and show in host computer with maximum deflection difference value.Sensing
The interval maximum allowable offset of device sensing can be set at initialization interface, if maximum deviation measured value is more than setting value,
Can point out in host computer to report to the police, and record the ambient temperature producing the maximum deviation moment.
The present invention uses Bei Fu company CX9000 series CPU, and expansion variable input and output fastener and analog input
Fastener is as PLC monitoring module.Required detection sensor can correspond to and be installed on sensor installing platform, used detected material
Can correspond to and be installed on detected material rotary apparatuss.Can be with adjusting rotating device rotating speed according to the actual blade speed of service.This set
Device record and preserve each sensor by the lasting triggered time be not continuously triggered the time, according to rotary apparatuss rotating speed, change
Calculate the interval size of respective sensor sensing.
Due to the presence in view of detection error during design, therefore in detection process, select specific quilt using particular sensor
The mode of detectable substance, realizes one-to-one detection, and PLC collection period is contracted to 5ms, limit simultaneously highest rotary rpm as
10°/s.
In addition to facilitate testing staff's real-time control to observe, the invention provides simply friendly man machine interface.Arbitrarily
Computer can access interface by IE browser, senses during each detected sensor initializing sensing is interval, actually detected
The interval maximum deviation of interval and sensing can be read from interface.Meanwhile, the external PT100 of PLC monitoring module, records and shows
Corresponding ambient temperature when sensor maximum deviation produces.
The present invention has following Advantageous Effects：
The present invention can be with detection sensor at a temperature of specific detected material and specific environment, in dynamic running process sense
Should interval situation of change.
Brief description
Fig. 1 is the interval device for dynamically detecting structured flowchart of position sensor of the present invention sensing；
Fig. 2 is the operational effect schematic diagram of the present invention；
Fig. 3 is the detection data schematic diagram of the present invention；
Fig. 4 is the detection logical flow chart of the present invention.
Specific embodiment
With reference to Figure of description, technical scheme is described in further detail.
As shown in figure 1, the interval device for dynamically detecting of the position sensor sensing of the application present invention, install including sensor
Platform 1, detected material rotary apparatuss 2, PLC monitoring module 3 and host computer 4；Sensor mounting platform 1 and detected material rotating dress
Put 2 concentric fixed installations；Sensor to be detected can be mounted on sensor installing platform 1, and detected material is securable to
On detected material rotary apparatuss 2；Adjust motor speed in detected material rotary apparatuss 2, detected material relative sensors can be changed
Velocity of rotation；Sensor trigger signal is connected with PLC monitoring module 3 by sensor signal lines；The interval tool of sensor sensing
Volume data information is uploaded to host computer by connection and supplies testing staff to monitor.
As shown in Fig. 2 detected material is when sensor, sensor is triggered, and there is the lasting triggering letter of a period of time
Number；After detected material leaves sensor, trigger disappears.When ambient temperature changes, the sensing of sensor is interval
Accordingly change.
As shown in figure 3, for ensureing detection concordance, setting rotation platform invariablenes turning speed, T1Continue for room temperature lower sensor
Triggered time, T3Continuously it is not triggered the time for room temperature lower sensor；T2Continue the triggered time for low temperature lower sensor, T4For low
Warm lower sensor is not continuously triggered the time.During sensor is triggered every time, PLC monitoring module all can record preservation automatically
Data above, calculates comparison and draws deviation time Δ t1With Δ t2Value.
Above surveyed data can be stored in internal database for described PLC monitoring module, automatically select deviation time Δ
t1With Δ t2Middle maximum, the ambient temperature of generation maximum deviation moment, maximum deviation time, sensor are continued the triggered time
It is uploaded to host computer with the continuous time of not being triggered, PLC monitoring module can calculate according to current rotation platform rotating speed simultaneously
Corresponding sensing interval size.
Related parameter values when described host computer can show that sensor real-time detection value and maximum deviation produce.According to
Accuracy of detection needs, and can directly define maximum deviation amount in interface.When actual deviation is more than setting value, system will record
Generation number of times and at that time temperature.
As shown in figure 4, whole system can enter wait initial phase after the power-up, personnel to be tested are ready, can
So that initial phase is clicked through by interface flow process button.After entering initial phase, system can detect that each sensor is
No can be triggered, when judge initialization success after, system enter the actually detected stage.
After entering the actually detected stage, PLC monitoring module persistently triggers recording preservation sensor reality periodicity, connects
The continuous periodicity that is not triggered, compares the deviation between measured value and initialization value in real time, extracts and uploads sensor sense in data base
Answer area's probability of occurrence peak and deviation maximum.
Be retained as in data base to lasting triggering periodicity and the periodicity that is not continuously triggered, actually detected in order to check
During data acquisition reliability.
Applicant describes in detail to embodiments of the invention with reference to Figure of description and describes, but this area skill
It should be understood that above example is only the preferred embodiments of the invention, explanation in detail is intended merely to help reader art personnel
More fully understand present invention spirit, and not limiting the scope of the invention, on the contrary, any invention essence based on the present invention
Any improvement that god is made or modification all should fall within the scope and spirit of the invention.
Claims (5)
1. the interval device for dynamically detecting of a kind of position sensor sensing, including sensor installing platform, detected material rotating dress
Put, PLC monitoring module and host computer it is characterised in that：
Described sensor installing platform is the frame structure with general purpose transducer installing hole, position sensor is arranged on described
General purpose transducer installing hole；
Described detected material rotary apparatuss are arranged on described sensor installing platform opposite face and are in described position sensor
Sensing interval scope in, described detected material rotary apparatuss bottom is provided with speed adjustable motor, is driven by adjustable motor
Described detected material rotary apparatuss rotate around axle center, and described detected material rotary apparatuss are installed detected material；
Described PLC monitoring module is connected with sensor signal lines；
Described host computer is connected with PLC monitoring module by connection, monitors operating sensor situation；
Set rotation platform invariablenes turning speed, PLC monitoring module will set room temperature lower sensor and continue the triggered time, continuously do not touched
The time of sending out, and setting low temperature lower sensor continues the triggered time, the time that is not continuously triggered automatically records preservation, and calculates
Set low temperature lower sensor to continue the initial time in triggered time and set the lasting triggered time initial time of room temperature lower sensor
Between deviation time Δ t1And set end time and the sensing under setting low temperature that room temperature lower sensor continues the triggered time
Device continues the deviation time Δ t between the end time in triggered time2Value；
Described PLC monitoring module automatically selects deviation time Δ t1With Δ t2Middle maximum, will produce the environment of maximum deviation moment
Temperature, maximum deviation time, sensor lasting triggered time and the continuous time of not being triggered are uploaded to host computer, PLC prison simultaneously
Control module, according to current rotation platform rotating speed, calculates the interval size of corresponding sensing.
2. the interval device for dynamically detecting of sensor sensing according to claim 1 it is characterised in that：
Described sensor installing platform is a cuboid framework, arranges multiple logical according to circumferential arrangement in this cuboid framework
Use sensor mounting hole；
Described detected material rotary apparatuss are a disc mounting bracket, with respect to the center of circle pair in this discoid mounting bracket
Claim position that multiple detected materials are installed；
Described detected material rotary apparatuss rotating speed continuously adjustabe, maximum (top) speed is to 20 degree per second.
3. the interval device for dynamically detecting of sensor sensing according to claim 1 and 2 it is characterised in that：
PLC monitoring module persistently triggers the cycle and is not continuously triggered the cycle according to sensor, in conjunction with rotation platform rotating speed, calculates
Actual sensed angular dimension in sensor dynamic process.
4. the interval device for dynamically detecting of sensor sensing according to claim 1 and 2 it is characterised in that：For specific
Sensor selects specific detected material it is ensured that testing self-consistentency, if the situation that sensor is not detected by detected material occurs,
PLC monitoring module will send alarm signal as prompting.
5. the interval device for dynamically detecting of sensor sensing according to claim 1 and 2 it is characterised in that：
In initialization procedure, original state lower sensor location sensitive interval size in PLC monitoring module, will be preserved, and will be right
Numerical value is answered to be stored in data base；
After entering the actual test stage, sensor triggers the sensing interval obtaining every time and will carry out reality with initialization sensing interval
When compare, and will appear from probability peak and maximum deflection difference value and show in host computer；
Sensor sensing interval maximum allowable offset can be set at initialization interface, if maximum deviation measured value is more than setting
Value, then can point out to report to the police in host computer, and record the ambient temperature producing the maximum deviation moment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410259606.7A CN104006782B (en) | 2014-06-12 | 2014-06-12 | Dynamic detection device for position sensor sensing section |
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| CN201410259606.7A CN104006782B (en) | 2014-06-12 | 2014-06-12 | Dynamic detection device for position sensor sensing section |
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| WO2018007193A1 (en) * | 2016-07-04 | 2018-01-11 | Philips Lighting Holding B.V. | System and method for providing a device access to sensor data |
| CN110109008B (en) * | 2019-04-19 | 2021-07-06 | 湖北三江航天万峰科技发展有限公司 | Proximity switch induction range testing device and method |
| CN113567784B (en) * | 2021-07-22 | 2024-04-26 | 支红抗 | Electronic lock detection device |
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| CN201464495U (en) * | 2009-06-01 | 2010-05-12 | 李新华 | Testing instrument of angle speed sensor |
| US8983788B2 (en) * | 2010-10-01 | 2015-03-17 | GM Global Technology Operations LLC | System and method of measuring a sensor offset |
| CN102539018B (en) * | 2010-12-30 | 2013-12-18 | 上海微电子装备有限公司 | Temperature sensor calibration device and method |
| CN102564487B (en) * | 2012-02-01 | 2015-05-27 | 重庆坤恩机电技术有限公司 | Automobile sensor detection equipment and method for detecting performance of sensor by utilizing same |
| US8872113B2 (en) * | 2012-02-21 | 2014-10-28 | Rockwell Automation Technologies, Inc. | System to test performance of pixels in a sensor array |
| CN202614275U (en) * | 2012-06-26 | 2012-12-19 | 无锡隆盛科技股份有限公司 | Accelerator position sensor detection device |
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Effective date of registration: 20170320 Address after: 065500 Guan Industrial Park, Hebei, Langfang Patentee after: GU'AN HUADIAN TIANREN CONTROL EQUIPMENT CO., LTD. Address before: 100039 Beijing West Fourth Ring Road, No. 16, building No. 1, Haidian District Patentee before: Beijing Huadian Tianren Electric Power Technology Co., Ltd. |
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Address after: 065500 Industrial Park, Gu'an County, Langfang City, Hebei Province Patentee after: Guoneng information technology (Hebei) Co.,Ltd. Address before: 065500 North District of Gu'an Industrial Park, Langfang City, Hebei Province Patentee before: GU'AN HUADIAN TIANREN CONTROL EQUIPMENT Co.,Ltd. |