CN203298791U - Experiment table for automobile sensor - Google Patents
Experiment table for automobile sensor Download PDFInfo
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- CN203298791U CN203298791U CN2013202235750U CN201320223575U CN203298791U CN 203298791 U CN203298791 U CN 203298791U CN 2013202235750 U CN2013202235750 U CN 2013202235750U CN 201320223575 U CN201320223575 U CN 201320223575U CN 203298791 U CN203298791 U CN 203298791U
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Abstract
The utility model relates to an experiment table for an automobile sensor, and the experiment table is a practical platform applied to automobile sensing technology in the field of automotive electronics. The experiment table comprises an execution apparatus, an automobile sensor and a measurement port; and the experiment table further comprises an upper PC human-computer interface, a lower computer system board, an input module, an output module, a general measuring device and an automobile instrument. The upper PC human-computer interface is connected with the lower computer system board in a control mode and dynamically displays sensor parameters transmitted from the lower computer system board in real time; the lower computer system board is connected with the execution apparatus via the output module and transmits control signals to drive the execution apparatus; the general measuring device is connected with the execution apparatus and monitors the execution apparatus in real time; and a terminal of the automobile sensor is connected with the execution apparatus, the other terminal of the automobile sensor is respectively connected with the automobile instrument and the measurement port, and the other terminal is also connected with the lower computer system board via the input module in a feedback connection way. The experiment table for the automobile sensor is easy to operate, can reproduce various working conditions of the automobile sensor accurately and conveniently, and can achieve measurement confirmed mutually in multimode with high credible measurement data and reliable parameter calibration.
Description
Technical field
The utility model relates to the automobile sensor detection technique, relates in particular to a kind of automobile sensor experiment table
.
Background technology
Automobile sensor is the input media of automobile computer system, and it is various work informations in automobilism, as the temperature of the speed of a motor vehicle, various media, engine operating condition etc., changes into electric signal and is defeated by computing machine, so that automobile is in optimum Working.And the automobile sensor experiment table can be university's electromechanical equipment class, automation class, electronic information class and computer utility class professional teaching use, also for the association area engineering technical personnel, study sensor characteristic and parameter calibration provides convenient and reliable condition.
What on market, occur at present, is mainly the sensor laboratory table of three types:
The first is universal sensor detecting experiment porch, can adapt to the different majors needs, but can not embody the specialty characteristics of automobile sensor;
The second is to take actual automobile sensor simply to enumerate as carrier, and shortcoming is accurately to control the operating mode of sensor;
The third is that to take actual automobile component be platform as engine, sensor signal is carried out to static state or detection of dynamic, the advantage of this experiment table is layout and the condition parameter that can reflect really sensor, but still can not well reproduce the various working of each sensor, in aspect inconveniences such as research sensor characteristic and parameter calibrations.
Above-mentioned known, be necessary prior art is further improved.
Summary of the invention
The utility model is to use convenient and reliable not problem at aspects such as operating mode setting, measurement, demarcation and propose a kind of simple to operate in order to solve existing automobile sensor experiment table, the various operating modes of automobile sensor can be facilitated, reproduce accurately, efficiently and the measurement that various ways confirms mutually can be realized, thereby make the measurement data confidence level higher, the more reliable automobile sensor experiment table of parameter calibration.
The utility model is achieved through the following technical solutions:
Above-mentioned automobile sensor experiment table, it is the Practice Platform that is applied to the sensing vehicle technology of vehicle electric field, comprises actuating unit, automobile sensor and measurement port; Described experiment table also comprises upper PC man-machine interface, lower computer system plate, load module, output module, general metrology devices and automobile instrument; The described lower computer system plate of described upper PC man-machine interface control linkage, and the sensor parameters Real time dynamic display that described lower computer system plate is transmitted; Described lower computer system plate connects by described output module and sends control signal and drives described actuating unit; Described general metrology devices connects and the described actuating unit of Real-Time Monitoring; Described automobile sensor one end connects described actuating unit, and the other end connects respectively described automobile instrument measurement port and passes through the described lower computer system plate of described load module feedback link.
Described automobile sensor experiment table, wherein: described lower computer system plate comprises SCI interface, BP interface, COUNT interface, PWM interface and A/D interface; Described lower computer system plate connects described upper PC man-machine interface by described SCI interface, be connected described load module by described COUNT interface with the A/D interface, connect described output module by described PWM interface, also be connected with described automobile instrument by described BP interface.
Described automobile sensor experiment table, wherein: described load module comprises shaping circuit and amplifying circuit; Described output module comprises driving circuit and Manual inflating; Described COUNT interface is connected with described shaping circuit, and described A/D interface is connected with described amplifying circuit, and described PWM interface is connected with described driving circuit.
Described automobile sensor experiment table, wherein: described actuating unit comprises the rotating speed motor of direct current, the speed of a motor vehicle motor of direct current, the oil mass steering wheel of direct current, aperture steering wheel, heating rod and the air drum of direct current; Described rotating speed motor, speed of a motor vehicle motor, oil mass steering wheel, aperture steering wheel and heating rod all are connected described PWM interface by described driving circuit; Described air drum is driven by described Manual inflating.
Described automobile sensor experiment table, wherein: described automobile sensor comprise speed probe, vehicle speed sensor, described fuel-quantity transducer, jaw opening sensor and temperature sensor and pressure transducer; Described speed probe is connected with described rotating speed motor coupling, for simulated engine rotating speed operating mode, adopts magnetoelectric tachometric transducer; Described vehicle speed sensor coupling connects described speed of a motor vehicle motor, its for simulated automotive speed of a motor vehicle operating mode and adopt the Hall-type vehicle speed sensor and and described speed of a motor vehicle motor between by shaft coupling, connect; Described fuel-quantity transducer coupling connects described oil mass steering wheel, and it is for the simulated oil quantitative change and adopt float variable resistance type liquid level sensor; Described jaw opening sensor coupling connects described aperture steering wheel, and it adopts the variation of linear output type throttle position sensor and throttle opening to connect driving by described aperture steering wheel by ring flange; Described temperature sensor coupling connects described heating rod, and it is for the simulated engine chilled water and adopt negative tempperature coefficient thermistor formula coolant temperature sensor; Described pressure transducer is driven by described Manual inflating by described air drum, and it is for the simulated automotive braking pressure and adopt the too low alarm sensor of diaphragm type air pressure.
Described automobile sensor experiment table, wherein: described speed probe, fuel-quantity transducer, jaw opening sensor, temperature sensor and pressure transducer also all are connected with amplifying circuit with described shaping circuit; Described speed probe has signal panels; Described signal panels adopt the less toothing of the number of teeth, by the described rotating speed motor of flange coupling and with described speed probe adjustment spacing, about 1mm, are placed.
Described automobile sensor experiment table, wherein: described measurement port comprise with the rotating speed of the corresponding connection of described speed probe/ground port, with the corresponding speed of a motor vehicle be connected of described vehicle speed sensor/ground port, with the corresponding oil mass be connected of described fuel-quantity transducer/ground port, with the corresponding air throttle be connected of described jaw opening sensor/ground port, with the corresponding temperature be connected of described temperature sensor/ground port and with the corresponding pressure be connected of described pressure transducer/ground port.
Described automobile sensor experiment table, wherein: described general metrology devices comprises the tensimeter be connected with described air drum and the thermometer be connected with described electrical bar.
Beneficial effect:
The utility model automobile sensor experiment table is simple to operate, can the convenient, fast and accurate various working that realizes each sensor, be convenient to the characteristic that the experimenter understands each sensor, facilitate DATA REASONING and parameter calibration, be mainly reflected in following some:
1, modular design
The utility model has adopted modular design flexibly on one-piece construction, is convenient to the user and accepts or rejects as required.As relatively independent as automobile sensor, actuating unit, lower computer system plate, output module, automobile instrument and general metrology devices etc., between module, plug connects, the experiments such as automobile sensor both can directly be used for carrying out, also can freely select as required operational blocks which partition system wherein or increase on this basis other module, build again other experiment, thereby expanded the purposes of experiment table, be convenient to the exploitation that the user carries out multiple level; Simultaneously, the utility model be take the slave computer system board as core, take upper PC man-machine interface as setting and display interface, be equipped with performer, Digitized auto meter and general metrology devices that automobile sensor mock-up and each sensor are corresponding, can offer accordingly the practical teaching of the experiment of controller course or Course Exercise, virtual instrument course, as Communication Programming of LabView and slave computer etc.
2, with the automobile sensor operating condition design of FEEDBACK CONTROL
Rotating speed of the present utility model, the speed of a motor vehicle, temperature, oil mass, air throttle are tested all with FEEDBACK CONTROL, can conveniently realize the needed various operating modes of each automobile sensor, facilitate the practical teaching of sensing vehicle technology.Carry out setting parameter by upper PC man-machine interface to the feedback controller of lower computer system plate, perhaps at the lower computer system plate, directly by emulation, debugged, can provide platform for the experimenter carries out the control algolithm debugging easily, also can be the course services such as " auto electronic control technology ", " Automatic Control Theory ".Also be convenient to the student and do the relevant problem of graduation project by this platform, as the problem of putting into practice of the aspects such as DSP control, Single-chip Controlling, measuring technique, virtual instrument, can alleviate energetically the scarcity of hardware platform resource in the graduation project problem.
3, the mutual confirmation of many metering systems
Automobile sensor of the present utility model, the lower computer system plate, connection communication between upper PC man-machine interface and automobile instrument, can set and dynamically show by upper PC man-machine interface the measured value of each automobile sensor, also can directly observe by automobile instrument, also can be by external general metrology devices as thermometer, rain glass, and by the measurement port oscillograph, multimeter is measured and is shown correlation parameter, realized the many integration shown, not only directly perceived, but also strengthened the credibility of testing, provide convenient and reliable condition for studying sensor characteristic and parameter calibration.
The accompanying drawing explanation
The one-piece construction schematic diagram that Fig. 1 is the utility model automobile sensor experiment table;
The System Working Principle figure that Fig. 2 is the utility model automobile sensor experiment table.
Embodiment
As shown in Figure 1 and Figure 2, the utility model automobile sensor experiment table, it is a kind of Practice Platform that is applied to the sensing vehicle technology of automotive electronics major field, it comprises upper PC man-machine interface 1, lower computer system plate 2, load module 3, output module 4, actuating unit 5, general metrology devices 6, measurement port 7, automobile sensor 8 and automobile instrument 9, wherein, all parts of the automobile sensor experiment table in the present embodiment is placed and mainly is connected by plug each other by the cabinet stand with device.
Upper PC man-machine interface 1 is electrically connected to lower computer system plate 2, and it is accepted by serial communication the measurement data that lower computer system plate 2 transmits and is shown and set the needed operating mode of lower computer system plate 2.
Lower computer system plate 2 is electrically connected to respectively with upper PC man-machine interface 1, load module 3, output module 4 and automobile instrument 9, mainly sensor working condition measuring, data are processed, demarcated in advance and corresponding actuator algorithm control, it comprises SCI interface 21, BP interface 22, COUNT interface 23, PWM interface 24 and A/D interface 25; Lower computer system plate 2 is electrically connected to upper PC man-machine interface 1 by SCI interface 21, be electrically connected to automobile instrument 9 by BP interface 22, be electrically connected to output module 4 by PWM interface 24, be electrically connected to load module 3 by COUNT interface 23 and A/D interface 25, wherein, in the present embodiment, lower computer system plate 2 has five PWM interfaces 24, two COUNT interfaces 23 and four A/D interfaces 25.
Output module 4 one ends are electrically connected to lower computer system plate 2, the other end is electrically connected to actuating unit 5, it comprises driving circuit 41 and Manual inflating 42, wherein, in the present embodiment, output module 4 has No. five driving circuits 41, this No. five driving circuit 41 is that the performer to actuating unit 5 correspondences drives and controls and an end is electrically connected to respectively five PWM interfaces 24 of lower computer system plate 2 correspondences, and the other end is electrically connected to the corresponding executive component of actuating unit 5 respectively; Manual inflating 42 is main by manually driving the corresponding executive component of actuating unit 5.
Actuating unit 5 one ends are electrically connected to output module 4, and the other end is electrically connected to automobile sensor 8, and it comprises rotating speed motor 51, speed of a motor vehicle motor 52, oil mass steering wheel 53, aperture steering wheel 54, heating rod 55 and air drum 56; One end of rotating speed motor 51, speed of a motor vehicle motor 52, oil mass steering wheel 53, aperture steering wheel 54 and heating rod 55 is electrically connected to respectively corresponding No. five driving circuits 41 of output module 4, and the other end sensor electrical corresponding with automobile sensor 8 respectively connects; Air drum 56 1 ends are electrically connected to Manual inflating 42, and the other end is connected with the corresponding sensor electrical of automobile sensor 8; Wherein, in the present embodiment, this rotating speed motor 51 adopts the direct current generator simulation to rotate and realizes engine speed; This speed of a motor vehicle motor 52 adopts the direct current generator simulation speed of a motor vehicle to rotate and realizes; This heating rod 55 also is covered with transparent shield for heating copper rod and outside, and for simulating coolant water temperature, its temperature variation solid-state relay controlled by dutycycle controlled, and with air drum 56, with corresponding general metrology devices 6, is connected; Air drum 56 is for simulating air pressure, and its air intake opening connects valve inside, and gas outlet connects three-way valve.
Oscillograph, multimeter observation experiment result are measured and used to measurement port 7 by connecting detecting instrument to each sensor element of automobile sensor 8; In the present embodiment, measurement port 7 comprises rotating speed/ground port 71, the speed of a motor vehicle/ground port 72, oil mass/ground port 73, air throttle/ground port 74, temperature/ground port 75 and pressure/ground port 76, wherein, rotating speed/ground port 71 connects respectively load module 4 and corresponding automobile sensor 8; The speed of a motor vehicle/ground port 72 connects respectively automobile instrument 9 and corresponding automobile sensor 8; Oil mass/ground port 73 connects respectively load module 4, automobile instrument 9 and corresponding automobile sensor 8; Air throttle/ground port 74 connects respectively load module 4 and corresponding automobile sensor 8; Temperature/ground port 75 connects respectively load module 4, automobile instrument 9 and corresponding automobile sensor 8; Pressure/ground port 76 connects respectively load module 4, automobile instrument 9 and corresponding automobile sensor 8.
Wherein, speed probe 81 is for simulated engine rotating speed operating mode, and the one end is electrically connected to rotating speed motor 51, and the other end is electrically connected to respectively shaping circuit 31 and the amplifying circuit 32 of the rotating speed of measurement port 7/ground port 71 and load module 3; In the present embodiment, speed probe 51 adopts magnetoelectric tachometric transducer, and this speed probe 81 has signal panels; These signal panels adopt the less toothing of the number of teeth, and it is sent to automobile instrument 9 by signal after shaping circuit 31 is sent to lower computer system plate 2 and carries out frequency multiplication, with the requirement of the realistic engine speed sensor signal panels number of teeth; The rotating speed motor 51 of these signal panels by the flange coupling direct current and to adjust spacings with the speed probe 51 of magneto-electric be that the 1mm left and right is placed.
Fuel-quantity transducer 83 is for the simulated oil quantitative change, and the one end is electrically connected to oil mass steering wheel 53, and the other end is electrically connected to respectively shaping circuit 31 and the amplifying circuit 32 of the oil mass of measurement port 7/ground port 73, automobile instrument 9 and load module 3; In the present embodiment, fuel-quantity transducer 83 adopts float variable resistance type liquid level sensors, and the position of float moves through the variation that the shift fork of oil mass steering wheel 53 drives float arm to simulate oil mass.
The course of work of the present utility model:
At first, press near the PC start button of experiment table, make to enter upper PC man-machine interface 1 after upper PC man-machine interface 1 energising, then operate the interface that upper PC man-machine interface 1 enters experimental project to be done, enter again the storing path of this experimental data of input after doing experimental project, the measurement data that Experiment Data Records lower computer system plate 2 transmits in real time, open the whole measuring process data recording that this document can be observed this experiment after experiment.
Then upper PC man-machine interface 1 detects from lower computer system plate 2 and transmits the next original state when front sensor by serial line interface, and on interface by virtual instrument, real-time data record value, measure curve in real time and shown, upper PC man-machine interface 1 is sent to lower computer system plate 2 to setting value by serial line interface simultaneously.In experimentation, reconfigurable setting value also can be to the setting value zero clearing of current experiment.As finished ongoing experiment, after exiting by confirmation, can finish this experiment.
Experimental result can be observed in several ways: observation experiment result on automobile instrument 9; In the upper observation experiment result of general metrology devices 6 (thermometer 62, rain glass 61); Observation experiment result on upper PC man-machine interface 1; In measurement port 7 use oscillographs, multimeter observation experiment result, its medium speed/ground port 71 can be observed with oscillograph the waveform of speed probe 81; The speed of a motor vehicle/ground port 72 can be observed with oscillograph the waveform of vehicle speed sensor 82; Oil mass/ground port 73 use multimeters are measured voltage or the resistance of temperature sensor 83; Air throttle/ground port 74 use multimeters are measured voltage or the resistance of temperature sensor 84; Temperature/ground port 75 use multimeters are measured voltage or the resistance of temperature sensor 85; Pressure/ground port 76 use multimeters are measured voltage or the resistance of temperature sensor 86.
Can in upper PC man-machine interface 1, preserve experimentation curvilinear figure and experimentation data in experimentation or after finishing.
The utility model is simple, convenient, wherein, upper PC man-machine interface is the various operating modes of dynamic display automobile sensor needs intuitively, the lower computer system plate can accurately be controlled the required operating mode reached of experimenter efficiently, the observation that virtual instrument shows, automobile instrument shows, measurement port is observed and the many integration of general metrology devices is confirmed mutually, make experimental result have more confidence level.The relevant problem of putting into practice that modular design flexibly makes this experiment table can also carry out detection technology experiment, controller exploitation experiment, control class experiment, virtual instrument exploitation experiment and do graduation project by this platform, for the practical teaching of auto electronics specialty provides good Practice Platform.
Claims (8)
1. an automobile sensor experiment table, it is the Practice Platform that is applied to the sensing vehicle technology of vehicle electric field, comprises actuating unit, automobile sensor and measurement port; It is characterized in that: described experiment table also comprises upper PC man-machine interface, lower computer system plate, load module, output module, general metrology devices and automobile instrument;
The described lower computer system plate of described upper PC man-machine interface control linkage, and the sensor parameters Real time dynamic display that described lower computer system plate is transmitted;
Described lower computer system plate connects by described output module and sends control signal and drives described actuating unit;
Described general metrology devices connects and the described actuating unit of Real-Time Monitoring;
Described automobile sensor one end connects described actuating unit, and the other end connects respectively described automobile instrument measurement port and passes through the described lower computer system plate of described load module feedback link.
2. automobile sensor experiment table as claimed in claim 1, it is characterized in that: described lower computer system plate comprises SCI interface, BP interface, COUNT interface, PWM interface and A/D interface;
Described lower computer system plate connects described upper PC man-machine interface by described SCI interface, be connected described load module by described COUNT interface with the A/D interface, connect described output module by described PWM interface, also be connected with described automobile instrument by described BP interface.
3. automobile sensor experiment table as claimed in claim 1 or 2, it is characterized in that: described load module comprises shaping circuit and amplifying circuit; Described output module comprises driving circuit and Manual inflating;
Described COUNT interface is connected with described shaping circuit, and described A/D interface is connected with described amplifying circuit, and described PWM interface is connected with described driving circuit.
4. automobile sensor experiment table as claimed in claim 3, it is characterized in that: described actuating unit comprises the rotating speed motor of direct current, the speed of a motor vehicle motor of direct current, the oil mass steering wheel of direct current, aperture steering wheel, heating rod and the air drum of direct current;
Described rotating speed motor, speed of a motor vehicle motor, oil mass steering wheel, aperture steering wheel and heating rod all are connected described PWM interface by described driving circuit; Described air drum is driven by described Manual inflating.
5. automobile sensor experiment table as claimed in claim 4 is characterized in that: described automobile sensor comprise speed probe, vehicle speed sensor, described fuel-quantity transducer, jaw opening sensor and temperature sensor and pressure transducer;
Described speed probe is connected with described rotating speed motor coupling, for simulated engine rotating speed operating mode, adopts magnetoelectric tachometric transducer;
Described vehicle speed sensor coupling connects described speed of a motor vehicle motor, its for simulated automotive speed of a motor vehicle operating mode and adopt the Hall-type vehicle speed sensor and and described speed of a motor vehicle motor between by shaft coupling, connect;
Described fuel-quantity transducer coupling connects described oil mass steering wheel, and it is for the simulated oil quantitative change and adopt float variable resistance type liquid level sensor;
Described jaw opening sensor coupling connects described aperture steering wheel, and it adopts the variation of linear output type throttle position sensor and throttle opening to connect driving by described aperture steering wheel by ring flange;
Described temperature sensor coupling connects described heating rod, and it is for the simulated engine chilled water and adopt negative tempperature coefficient thermistor formula coolant temperature sensor;
Described pressure transducer is driven by described Manual inflating by described air drum, and it is for the simulated automotive braking pressure and adopt the too low alarm sensor of diaphragm type air pressure.
6. automobile sensor experiment table as claimed in claim 5, it is characterized in that: described speed probe, fuel-quantity transducer, jaw opening sensor, temperature sensor and pressure transducer also all are connected with amplifying circuit with described shaping circuit;
Described speed probe has signal panels; Described signal panels adopt the less toothing of the number of teeth, by the described rotating speed motor of flange coupling and with described speed probe adjustment spacing, about 1mm, are placed.
7. automobile sensor experiment table as claimed in claim 6 is characterized in that: described measurement port comprise with the rotating speed of the corresponding connection of described speed probe/ground port, with the corresponding speed of a motor vehicle be connected of described vehicle speed sensor/ground port, with the corresponding oil mass be connected of described fuel-quantity transducer/ground port, with the corresponding air throttle be connected of described jaw opening sensor/ground port, with the corresponding temperature be connected of described temperature sensor/ground port and with the corresponding pressure be connected of described pressure transducer/ground port.
8. automobile sensor experiment table as described as claim 1 or 4, it is characterized in that: described general metrology devices comprises the tensimeter be connected with described air drum and the thermometer be connected with described electrical bar.
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| CN2013202235750U CN203298791U (en) | 2013-04-28 | 2013-04-28 | Experiment table for automobile sensor |
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| CN2013202235750U CN203298791U (en) | 2013-04-28 | 2013-04-28 | Experiment table for automobile sensor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994805A (en) * | 2014-04-29 | 2014-08-20 | 江苏农林职业技术学院 | Sensor testing device for measuring automobile fuel quantity |
| CN105222823A (en) * | 2015-09-30 | 2016-01-06 | 湖北工业大学 | A kind of checkout equipment of integrated form of automobile combination meter |
| CN105277743A (en) * | 2015-11-13 | 2016-01-27 | 桂林电子科技大学 | Pulse type engine rotating speed measuring instrument full-automatic detection device and method |
| CN105702114A (en) * | 2016-03-25 | 2016-06-22 | 佛山市新恒萃材料科技有限公司 | Education platform for zero forcing demonstration technology |
| CN106017535A (en) * | 2016-07-21 | 2016-10-12 | 北京美联桥科技发展有限公司 | Device and method for calibrating position sensor of motor driven valve |
| CN107219399A (en) * | 2017-05-26 | 2017-09-29 | 武汉保华显示科技有限公司 | A kind of vehicle fuel resistance signal imitation devices and methods therefor |
| CN107561305A (en) * | 2017-08-29 | 2018-01-09 | 潍柴动力股份有限公司 | Rotation speed signal processing circuit of engine and speed probe type detection method |
| CN108154742A (en) * | 2018-02-05 | 2018-06-12 | 苏州市职业大学（苏州开放大学） | A kind of industry Internet of Things practice teaching platform |
| CN110095143A (en) * | 2019-06-04 | 2019-08-06 | 哈尔滨理工大学 | A kind of reliability detection device of trough type photoelectric sensor |
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2013
- 2013-04-28 CN CN2013202235750U patent/CN203298791U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994805A (en) * | 2014-04-29 | 2014-08-20 | 江苏农林职业技术学院 | Sensor testing device for measuring automobile fuel quantity |
| CN105222823A (en) * | 2015-09-30 | 2016-01-06 | 湖北工业大学 | A kind of checkout equipment of integrated form of automobile combination meter |
| CN105277743A (en) * | 2015-11-13 | 2016-01-27 | 桂林电子科技大学 | Pulse type engine rotating speed measuring instrument full-automatic detection device and method |
| CN105702114A (en) * | 2016-03-25 | 2016-06-22 | 佛山市新恒萃材料科技有限公司 | Education platform for zero forcing demonstration technology |
| CN106017535A (en) * | 2016-07-21 | 2016-10-12 | 北京美联桥科技发展有限公司 | Device and method for calibrating position sensor of motor driven valve |
| CN106017535B (en) * | 2016-07-21 | 2017-09-05 | 北京美联桥科技发展有限公司 | A kind of motor-driven valve position sensor caliberating device and method |
| CN107219399A (en) * | 2017-05-26 | 2017-09-29 | 武汉保华显示科技有限公司 | A kind of vehicle fuel resistance signal imitation devices and methods therefor |
| CN107561305A (en) * | 2017-08-29 | 2018-01-09 | 潍柴动力股份有限公司 | Rotation speed signal processing circuit of engine and speed probe type detection method |
| CN108154742A (en) * | 2018-02-05 | 2018-06-12 | 苏州市职业大学（苏州开放大学） | A kind of industry Internet of Things practice teaching platform |
| CN110095143A (en) * | 2019-06-04 | 2019-08-06 | 哈尔滨理工大学 | A kind of reliability detection device of trough type photoelectric sensor |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20170428 |