CN204596285U - A kind of sensor experiment case - Google Patents
A kind of sensor experiment case Download PDFInfo
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- CN204596285U CN204596285U CN201520288412.XU CN201520288412U CN204596285U CN 204596285 U CN204596285 U CN 204596285U CN 201520288412 U CN201520288412 U CN 201520288412U CN 204596285 U CN204596285 U CN 204596285U
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Abstract
The utility model relates to a kind of sensor experiment case, the utility model provides a kind of sensor experiment case, comprise casing and case lid, described casing upper opening, be connected with described case lid, crossbeam is provided with in the middle part of described casing, described casing comprises the upper and lower: upper strata is experimental implementation layer, lower floor is that module deposits layer, structural design of the present utility model is flexible, compared to traditional sensor experiment case, the technical solution of the utility model has higher intelligent, applicability and extensibility, focus on the cultivation of students ' practical ability, be adapted at undergraduate course, universities carry out sensor experiment course, Course Exercise, use in the middle of scientific research and development.
Description
Technical field
The utility model relates to a kind of sensor experiment case, belongs to technical field of teaching instruments.
Background technology
Along with computing machine, microelectronics, material and the Key technology such as to communicate, and the fast development of application technology, the developing rapidly of technology of Internet of things especially in recent years, makes the application of sensor also expand to daily life from industrial circle.Therefore, sensor experiment also becomes core or the main course of the specialties such as electronics, electric information, automatic control and Internet of Things.
In sensor experiment case in the past, one Lei Shi producer stresses the induction technology in sensor, the technology such as material, structure, technique of research sensor emphatically, this kind of sensor mainly meets the correlated curriculum requirement of the specialties such as physics, material, instrument and meter, when student uses this sensor experiment case to learn, can only solve minority sensor more thorough, the kind of sensor that can acquire is limited, in addition, owing to too stressing the concrete ins and outs of sensor, student often cannot fully understand that it is applied.
The another kind of application being weight sensor, all the sensors has all been packaged into little module, the output signal of sensor also completes digitizing substantially, the acquisition controller used also adopts high-end arm processor mostly, as Cortex A8 or ARM11, when student uses, specifically cannot understand the inner workings of sensor, even cannot carry out the data acquisition manipulating sensor, also just cannot temper the system ability of oneself.
In addition, sensor experiment case in the past only focuses on data interchange between sensor and core control panel and control, can not accomplish to control in real time according to personal inclination.This is in the highly intelligentized extendability and the practical application that significantly limit experimental box today.
Chinese patent document " sensor integrated circuit experimental box ", application number is 201120504016.8, open (bulletin) number is CN202362993U, disclose a kind of sensor integrated circuit experimental box, expand jack by epidemic disaster testing circuit, magnetic field detection circuit, reflective infrared tube treatment circuit, photoelectric velocity measurement circuit, LCD MODULE, sound treatment circuit, light intensity detection circuit, bread board, inflammable gas testing circuit, pressure detection circuit, signal processing circuit, power module, single-chip microcomputer and sensor and form.Each sensor is all designed to independently module.A kind of single-chip microcomputer only joined by this sensor experiment case, and this experimental box does not have configuration communication module, and sensor of today connects to only have and is connected with network, and it is just meaningful that data obtain transmission.
Chinese patent document " Self-organizing sensor experiment box ", application number is 200820165846.0, open (bulletin) number is CN201274107Y, disclose a kind of Self-organizing sensor experiment box, belong to sensor experiment device class technical field of teaching instruments, mainly be applicable to Sensors & Testing Technology experiment table, it is characterized in that comprising the casing be connected, case lid, fixed head is settled in casing, fixed head is equipped with the experiment component box of experiment sensor and one group of built-in experiment component, experiment component box is equipped with the connection terminal be connected with built-in experiment component circuit, between the experiment component that experiment component box is built-in, respectively by being connected wire between experiment component with experiment sensor, connection terminal forms corresponding circuit and connects.The structure modules of this experimental box is non-removable, and inconvenient student carries out combination experiment.
In sum, the existence of these shortcomings makes existing sensor experiment case can not meet new requirement: sensor experiment case will take into account the requirement of experiment of 8 MCS-51 single-chip microcomputers and 32 STM32 Cortex M series monolithics, can realize a tractor serves several purposes.User can the principle of work of the most of sensor of simple knowledge, relevant signal conditioning circuit, corresponding data acquisition technology and relevant TT&C system be formed, and understands the correlation techniques such as up-to-date microsensor, intelligent sensor and virtual instrument.Meanwhile, biosensor assay case will have certain intelligent and have stronger extendability and practical application.Therefore, research and develop a kind of sensor experiment case that can adapt to New Times new demand and there is very important value.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of sensor experiment case.
The technical solution of the utility model is as follows:
A kind of sensor experiment case, comprise casing, case lid and power transformer, described casing upper opening, is connected with described case lid, is provided with crossbeam in the middle part of described casing, and described casing comprises the upper and lower, and described power transformer is arranged on lower floor:
Described upper strata is experimental implementation layer, described experimental implementation layer comprises installation frame, described installation frame is arranged on described crossbeam, described installation frame comprises stuck-module district and mobile module district, the stuck-module installed in described stuck-module district and installation frame are for being fixedly connected with, and the mobile module installed in described mobile module district and installation frame are that detachable is connected;
Described lower floor is that module deposits layer, and described module is deposited layer and comprised and deposit drawer and slide rail, and described slide rail is arranged on module and deposits on layer both sides inwall, described in deposit drawer and be flexibly connected with the inwall of casing by described slide rail.
Preferably, in described mobile module district, mobile module and installation frame adopt screw to be connected.
Preferably, described in deposit drawer and be provided with partition panel, described partition panel deposits drawer space in order to segmentation.
Preferably, described stuck-module comprises power module and surveys electric current and voltage module.
Preferably, described mobile module comprises main controller module and other mobile modules, and other mobile modules described comprise range finding & and vibrate & pressure & angle-sensor module, temperature measurement module, proximity transducer module, visible light sensor module, speed & acceleration sensor module, Temperature Humidity Sensor module, gas sensor module, infrared module and communication module.
Preferably, described main controller module is long is 19cm, and wide is 11cm, and other mobile modules described are long is 13cm, and wide is 9cm.
Preferably, described mobile module and described stuck-module adopt banana head connecting line to be connected.
Preferably, described in deposit drawer and also comprise handle, described handle is arranged on to be deposited on drawer outside face.
Preferably, be provided with cystosepiment in described casing, described cystosepiment is pasted onto to be deposited on the inwall of drawer.In order to protection module.
Preferably, described casing is the casing be made up of steel plate.
According to the technical scheme that the utility model provides, the Test Application that the sensor experimental box carries out based on labview can be utilized:
First the test macro based on labview is set up on computers, described test macro comprises main test interface and data space, described main test interface comprises main display interface and Modules button, and described data space comprises the excel form in hard disc of computer; Secondly, select the mobile module needing test, mobile module is arranged on installation frame, main controller module to be connected with computing machine row data communication of going forward side by side by RS-232 serial bus, the input of power transformer connects external power source, and the output of power transformer connects power module; Again, start test macro, enter main test interface; Click Modules button to mobile module send order, mobile module by data feedback to test macro; Data are presented on main display interface by test macro.If need to store data, then need data to be saved in data space by path.
The beneficial effects of the utility model are:
1, the utility model is by being designed to upper and lower two-layer mechanism by sensor experiment case, the project alternative of carrying out sensing testing is designed clearly when user is used, remaining module folding and unfolding is deposited layer in the module of experimental box, for the expansion of sensor experiment case leaves basis, experiment is more succinctly known, and convenient operation manages.
2, the utility model is by being set to dismountable structural embeddedness in installation frame by sensor assembly, experimental box entirety is easy for installation and maintenance, sensor assembly and installation frame is installed together by screw, be convenient to the replacing of module; Meanwhile, because mobile module size is all the same, student can independent assortment, freely plays.
3, the utility model by being provided with cystosepiment in casing, can by experiment with less than daughter board temporarily leave in be placed with cystosepiment deposit in drawer, so both can Appropriate application case intracorporeal space, casing is made to become smaller and more exquisite, be easy to carry, and foam also can play anti-effect of falling.
4, the utility model is by using the design of mobile module, can configure two kinds of single-chip microcomputers, have 51 basic single-chip microcomputers, also have senior nowadays control circuit field more Cortex-m3 processor, the student being applicable to different basis launches experiment.Included sensor assembly covers the most of sensor needing in teaching at present to use, and is also use more sensor at present at industrial circle, is convenient to student and carries out secondary development.
5, the utility model is by arranging abundant test interface, has all reserved test interface from signals collecting to last amplification, facilitates the treatment circuit of student's profound understanding sensor.
6, the test based on lavbiew can be carried out by the technical solution of the utility model, make the reaction of data quicklook in the display interface of test macro, user is made to see test result more intuitively, simultaneously, utilize the sensor experiment case that makes of the virtual high degree of labview to have higher intelligent, applicability and extensibility, be adapted at undergraduate course, universities carry out sensor experiment course, Course Exercise, to use in the middle of scientific research and development.
Accompanying drawing explanation
Fig. 1 is the utility model sensor experiment box structure schematic diagram;
Fig. 2 is experimental implementation layout layer structural representation, and power module, survey electric current and voltage module are directly assemblied on installation frame, and other mobile module adopts standard size, can embed installation frame;
In Fig. 1, lexical or textual analysis is as follows: 1, case lid, and 2, casing, 3, crossbeam, 4, installation frame, 5, stuck-module and mobile module, 6, deposit drawer, 7, handle, 8, partition panel, 9, power transformer, in Fig. 1, stuck-module is all separated signal with installation frame with mobile module.
Embodiment
Also by reference to the accompanying drawings the utility model is described further below by embodiment, but is not limited thereto.
Embodiment 1:
A kind of sensor experiment case, comprise casing, case lid and power transformer, as shown in Figure 1, Fig. 1 is the structural representation of sensor experiment case, and casing is the casing be made up of steel plate, described casing upper opening, be connected with described case lid, be provided with crossbeam in the middle part of described casing, described casing comprises the upper and lower, and described power transformer is arranged on lower floor:
Described upper strata is experimental implementation layer, described experimental implementation layer comprises installation frame, described installation frame is arranged on described crossbeam, described installation frame comprises stuck-module district and mobile module district, the stuck-module installed in described stuck-module district and installation frame are for being fixedly connected with, the mobile module installed in described mobile module district and installation frame, for removably connecting, are easy for installation and maintenance, and each module placement as shown in Figure 2.
Described lower floor is that module deposits layer, and described module is deposited layer and comprised and deposit drawer and slide rail, and described slide rail is arranged on module and deposits on layer both sides inwall, described in deposit drawer and be flexibly connected with cabinet wall by described slide rail.
Stuck-module comprises power module and surveys electric current and voltage module, and stuck-module is directly assemblied on installation frame.Power module comprises rectification circuit, and interchange is converted to direct current, logical after LM7805, LM7905, LM7812; LM7912, LM1117 voltage stabilizing chip is by voltage voltage stabilizing extremely+5V ,-5V ,+12V;-12V, 3.3V, provide the power of power supply at more than 36W, and have overcurrent protection and self-recovering function.Measuring voltage current module comprises measuring voltage module, measurement range 0-12V; Measure current module, measurement range 0-10A.
Mobile module comprises main controller module and other mobile modules, and other mobile modules comprise range finding & and vibrate & pressure & angle-sensor module, temperature measurement module, proximity transducer module, visible light sensor module, speed & acceleration sensor module, Temperature Humidity Sensor module, gas sensor module, infrared module and communication module.Mobile module adopts standard size, be arranged on installation frame by screw, be convenient to change, main controller module is long is 19cm, wide is 11cm, other mobile modules are long is 13cm, wide is 9cm, as shown in Figure 2, in Fig. 2, module one, module two, module three and module four are one of other mobile modules, and user can, according to different experiment demands, different experiment purposes, select other different mobile modules to embed in module one as shown in Figure 2, module two, the region shown in module three and module four.
Main controller module comprises two kinds of control and testing boards, and one is MCS-51 control and testing board, plate has the indicating circuit of switching value, keyboard and LED display circuit, LCD1602 display circuit, AD/DA interface circuit, communication interface circuit, key circuit; Another kind is STM32 control and testing board, plate has the indicating circuit of switching value, keyboard and LED display circuit, LCD display circuit, AD/DA interface circuit, communication interface circuit.Two kinds of single-chip microcomputers can be configured by the design of two kinds of control and testing boards, have 51 basic single-chip microcomputers, also have senior nowadays control circuit field more Cortex-m3 processor, the student being applicable to different basis launches experiment.
Range finding & vibrates & pressure & angle-sensor module and comprises distance measuring sensor interface circuit, uses ultrasonic ranging; Vibration transducer interface circuit, core parts are SW420 vibroswitch, and when sensor is subject to vibrating, vibration transducer module exports the change of a low and high level; Modular circuit of pressure sensor, the electric bridge that LOAD CELLS is made up of four strain resistors, when one end of LOAD CELLS is under pressure, exports corresponding voltage; Gradient sensor interface circuit, core parts are N1000060, and the angle of sensor perturbations is different, and the voltage that module exports is different; Angular sensor circuit, employing be simply connected potentiometer, its angle rotated is different, and the voltage that module exports is different.
Temperature measurement module comprises AD620 amplifying circuit; K type thermocouple temperature measurement circuit, the principle of K type thermopair is based on Bezier effect, and at different temperature, the voltage at thermopair two ends is different, and module exports different voltage; PT100 constant flow source measuring circuit temperature, design a constant current source by Pt100 thermal resistance, temperature is different, and the voltage that module exports is different; PT100 bridge-type temperature measurement circuit, utilizes resistance bridge, and in four resistance of electric bridge, three is constant, and another uses Pt100 thermal resistance, and when Pt100 resistance change, test lead produces an electric potential difference, and module exports different voltage.
Proximity transducer module comprises nearly sensor circuit, capacitive touch sensor circuit, and nearly sensor circuit comprises inductive proximity sensor and Hall proximity transducer, uses TTP223 touch chip, and antijamming capability is strong, can not false triggering.
Visible light sensor module, comprises light sensor circuit, and when there being illumination, the resistance of photo-resistor declines rapidly, and input comparator LM393 obtains different switching values; Sound transducer circuit, when MIC collects voice signal, the dividing potential drop of MIC can increase, when intensity of sound is higher than noise, MIC voltage peak is higher than noise signal, after capacitor filters falls direct current signal through triode amplify anti-phase after have a low level change, during reverse inter-input-ing voltage lower than LM393, output low level; Tansducer For Color Distiguishing circuit, use TCS3200D sensor, it is the converter of a kind of programmable colorama to frequency, and different colors is irradiated to the different frequency that sensor can export.
Speed & acceleration sensor module, comprises DC motor speed-regulating circuit, and the pulse-length modulation (PWM) using 555 timers to produce realizes electric machine speed regulation; Hall element tachometric survey circuit, core devices is Hall effect single-pole switch A1120, and motor speed is different, and its different output is through a comparer shaping, and module can export different frequencies.
Temperature Humidity Sensor module comprises DHT11 thermometric humidity circuit, and DHT11 is the digital sensor of a wet temp integration, simple unibus can be adopted to communicate, just can learn the humiture of environment between DHT11 with main controller module; DS18B20 temperature measurement circuit block, DS18B20 is a intelligent temperature sensor, and the temperature of measurement can be stored in inner register, main controller module, by unibus mode, reads its register, can obtain temperature value; HR202 measuring moisture circuit, HR202 is resistance type humidity sensor, accesses 555 timers, by measuring the different frequency exported, learning the resistance value of HR202, thus learning ambient humidity; NTC thermistor temperature measurement circuit, the resistance of NTC thermistor declines along with the rising of temperature, measures corresponding temperature by the resistance measuring thermistor; HS1101 measuring moisture circuit, its capacitance, with the regular change of humidity, according to this feature, determines corresponding humidity value according to its capacitance; AD592 temperature measurement circuit, the current signal that is converted into of temperature linearity can export by AD592, carrys out measuring tempeature by the electric current measuring AD592.
Gas sensor module, comprises smog sensor circuit, and the resistance of MQ-2 reduces with the increase of smokescope in air, by electric resistance partial pressure, and access comparer LM393, output switch amount; Methane transducer circuit, the resistance of MQ-5 reduces with the increase of Methane in Air concentration, by electric resistance partial pressure, access comparer LM393, output switch amount; Alcohol sensor circuit, the resistance of MQ-3 reduces with the increase of alcohol concentration in air, by electric resistance partial pressure, access comparer LM393, output switch amount.
Infrared module, comprises infrared thermal release electric circuit, and use pyroelectric infrared sensor RE200B, its existing higher sensitivity, can meet the requirement of general alarm device or non-attended light control application of installation.Acp chip is a infrared thermal release electric special integrated chip BISS0001, can be used for perceive heat source movement drive electric light or warning horn; Infrared tube tachometric survey circuit, when the light beam sent by luminotron is blocked constantly by code-disc, phototriode does not receive infrared signal, and signal end exports high level.When electric machine rotation, signal output part just has the change of low and high level.
Communication module comprises USB Host and USB Device circuit, CAN telecommunication circuit, ethernet communication circuit, the sensor experiment case that the utility model is designed comprises multiple current mode, by configuring perfect virtual machine instrument software, the data of sensor can be shown in real time.
Mobile module and stuck-module adopt banana head connecting line to be connected, and mobile module and installation frame adopt screw to be connected.
When utilizing the sensor experimental box to be applied in virtual machine instrument software uses, first the module scheme that will test clearly is tested, set up the test macro based on labview on computers, test macro comprises main test interface and data space, described main test interface comprises main display interface and Modules button, and described data space comprises the excel form in hard disc of computer; Secondly select according to module scheme the mobile module needing test, mobile module is arranged on installation frame, experimental box main controller module to be connected with computing machine row data communication of going forward side by side by RS-232 serial bus, and the input of power transformer is connect external power source, output+12V ,-12V ,+6V, the AC power of-6V, the output of power transformer connects power module; Start test macro, enter main test interface; Click Modules button to mobile module send order, mobile module by data feedback to test macro; Data are presented on main display interface by test macro.In main display interface, different button can be set, to realize real-time reading and the time-out of data, can also by path preserve by data in table form persistence in data space, the content of preserving comprises data retention over time and corresponding data value, consulting and analyzing for the later stage.
Embodiment 2:
A kind of sensor experiment case, as described in Example 1, difference is its structure, described in deposit drawer and also comprise handle, described handle is arranged on to be deposited on drawer outside face, experimental box is used convenient.
Embodiment 3:
A kind of sensor experiment case, as described in Example 1, difference is its structure, described in deposit drawer and be provided with partition panel, described partition panel deposits drawer space in order to segmentation, make module to deposit orderliness more orderly.
Embodiment 4:
A kind of sensor experiment case, as described in Example 1, difference is its structure, is provided with cystosepiment in described casing, and described cystosepiment is pasted onto to be deposited on the inwall of drawer, in order to protection module.
Claims (9)
1. a sensor experiment case, comprises casing, case lid and power transformer, and described casing upper opening, is connected with described case lid, is provided with crossbeam in the middle part of described casing, and described casing comprises the upper and lower, and described power transformer is arranged on lower floor:
Described upper strata is experimental implementation layer, described experimental implementation layer comprises installation frame, described installation frame is arranged on described crossbeam, described installation frame comprises stuck-module district and mobile module district, the stuck-module installed in described stuck-module district and installation frame are for being fixedly connected with, and the mobile module installed in described mobile module district and installation frame are that detachable is connected;
Described lower floor is that module deposits layer, and described module is deposited layer and comprised and deposit drawer and slide rail, and described slide rail is arranged on module and deposits on layer both sides inwall, described in deposit drawer and be flexibly connected with cabinet wall by described slide rail.
2. sensor experiment case according to claim 1, is characterized in that, in described mobile module district, mobile module and installation frame adopt screw to be connected.
3. sensor experiment case according to claim 1, is characterized in that, described in deposit drawer and be provided with partition panel, described partition panel deposits drawer space in order to segmentation.
4. sensor experiment case according to claim 1, is characterized in that, described stuck-module comprises power module and surveys electric current and voltage module.
5. sensor experiment case according to claim 1, it is characterized in that, described mobile module comprises main controller module and other mobile modules, and other mobile modules described comprise range finding & and vibrate & pressure & angle-sensor module, temperature measurement module, proximity transducer module, visible light sensor module, speed & acceleration sensor module, Temperature Humidity Sensor module, gas sensor module, infrared module and communication module.
6. sensor experiment case according to claim 5, is characterized in that, described main controller module is long is 19cm, and wide is 11cm, and other mobile modules described are long is 13cm, and wide is 9cm.
7. sensor experiment case according to claim 1, is characterized in that, described mobile module and described stuck-module adopt banana head connecting line to be connected.
8. sensor experiment case according to claim 1, is characterized in that, described in deposit drawer and also comprise handle, described handle is arranged on to be deposited on drawer outside face.
9. sensor experiment case according to claim 1, is characterized in that, is provided with cystosepiment in described casing, and described cystosepiment is pasted onto to be deposited on the inwall of drawer, and described casing is the casing be made up of steel plate.
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| CN201520288412.XU CN204596285U (en) | 2015-05-06 | 2015-05-06 | A kind of sensor experiment case |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778889A (en) * | 2015-05-06 | 2015-07-15 | 山东大学 | Sensor experimental box and application thereof |
| CN105913742A (en) * | 2016-07-01 | 2016-08-31 | 宜宾学院 | Experimental box |
| CN106781909A (en) * | 2016-12-08 | 2017-05-31 | 钦州市晶通科技有限公司 | Water-proof type electric system simulation instrument |
| CN110211463A (en) * | 2019-06-05 | 2019-09-06 | 哈尔滨理工大学 | A kind of Internet of Things experimental box of short-distance wireless communication |
-
2015
- 2015-05-06 CN CN201520288412.XU patent/CN204596285U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778889A (en) * | 2015-05-06 | 2015-07-15 | 山东大学 | Sensor experimental box and application thereof |
| CN105913742A (en) * | 2016-07-01 | 2016-08-31 | 宜宾学院 | Experimental box |
| CN106781909A (en) * | 2016-12-08 | 2017-05-31 | 钦州市晶通科技有限公司 | Water-proof type electric system simulation instrument |
| CN110211463A (en) * | 2019-06-05 | 2019-09-06 | 哈尔滨理工大学 | A kind of Internet of Things experimental box of short-distance wireless communication |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20190506 |
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| CF01 | Termination of patent right due to non-payment of annual fee |