CN204439108U - Automatic detection device for multi-path temperature and humidity sensors - Google Patents
Automatic detection device for multi-path temperature and humidity sensors Download PDFInfo
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Abstract
The utility model relates to a domestic appliance field, concretely relates to multichannel temperature and humidity sensor automatic checkout device. The temperature and humidity detection device comprises a data acquisition module, a temperature and humidity detection module and a display module, wherein the output end of the temperature and humidity detection module is connected with a signal acquisition port of the data acquisition module, and the input end of the display module is connected with the output end of the data acquisition module; the temperature and humidity detection module is used for transmitting detected external temperature signals and humidity signals to the data acquisition module in the form of voltage signals respectively; the data acquisition module is used for processing the received voltage signals and transmitting the processing result to the display module for display. The device replaces artificial subjective judgment with automatic judgment of the test result, so that the accuracy of the test result is improved, and the problems that test blind spots exist and the accuracy of the test result is reduced when the test result of the temperature and humidity sensor module is judged artificially and subjectively are solved.
Description
Technical field
The utility model relates to Temperature Humidity Sensor field, is specifically related to a kind of multichannel Temperature Humidity Sensor automatic detection device.
Background technology
In the household electronic products such as air-conditioning, humidifier, fan, most of product relates to the application of Temperature Humidity Sensor module.Temperature Humidity Sensor module needs to carry out quality test before dispatching from the factory, if qualified just permission of testing result is dispatched from the factory, otherwise, be judged as substandard products.
But, in the prior art, to Temperature Humidity Sensor module dispatch from the factory test in, substantially the method for testing control mainboard of the corresponding product of this Temperature Humidity Sensor of application being connected corresponding Temperature Humidity Sensor module is adopted, and it is whether normal by the display of artificial judgment data, simultaneously again by changing external environment humidity, checking whether data change, judging that whether this Temperature Humidity Sensor module is qualified.
But above method of testing is a kind of original method of testing, there is following shortcoming: the test result 1, needing the tested Temperature Humidity Sensor module of artificial subjective judgement, there is test blindspot, the accuracy of test result reduces, if any the display of humiture data, then showing certificate very large may not be actual environment data; 2, testing efficiency is extremely low, and can only realize a Temperature Humidity Sensor test, testing efficiency is very low, like this, in actual production, cannot reach productive temp requirement far away at every turn, often causes the generation testing heap plate situation.
Based on above description, need badly and want a kind of multichannel Temperature Humidity Sensor automatic detection device, low to solve the accuracy of test result when the Temperature Humidity Sensor existed in prior art detects, and a Temperature Humidity Sensor test can only be realized, the low-down problem of testing efficiency at every turn.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of multichannel Temperature Humidity Sensor automatic detection device, and this device replaces human subjective by automatic decision test result and judges, improves the accuracy of test result.
The purpose of this utility model is also to provide a kind of multichannel Temperature Humidity Sensor automatic detection device, and this device realizes once testing multiple Temperature Humidity Sensor simultaneously, increases substantially testing efficiency.
The utility model embodiment is by the following technical solutions:
A kind of multichannel Temperature Humidity Sensor automatic detection device, comprises data acquisition module, Temperature and Humidity module that output terminal is connected with the signals collecting port of described data acquisition module and the display module that input end is connected with the output terminal of described data acquisition module;
Described Temperature and Humidity module is used for the temperature signal in the external world detected and moisture signal to pass to data acquisition module with the form of voltage signal respectively;
Described data acquisition module is used for processing the voltage signal received and result being passed to described display module showing;
The check-out console that described Temperature and Humidity module comprises at least one Temperature Humidity Sensor and is connected with described Temperature Humidity Sensor, the testing circuit of described Temperature Humidity Sensor and described check-out console forms signal acquisition circuit, and the change of Temperature Humidity Sensor resistance value is converted into voltage signal by described signal acquisition circuit;
Described Temperature and Humidity module also comprises at least one standard atmosphere sensor, described standard atmosphere sensor is used for Real-time Collection standard temperature signal and standard humidity signal, and is kept in described standard module by gathered standard temperature signal and standard humidity signal;
Each signal sampling channel of described data acquisition module is all connected with a multi-selection device, and described multi-selection device is connected with described Temperature and Humidity module.
As preferably, described data acquisition module is used for being converted to temperature value to what receive with the temperature signal of voltage signal form performance, and temperature value is passed to display module; Described display module is used for the standard temperature value in temperature value and standard module to contrast, and judges temperature value whether in preset temperature error range, and temperature value and judged result is shown simultaneously.
As preferably, described data acquisition module is used for being converted into the data mode identical with the standard humidity signal in standard module by what receive with the moisture signal of voltage signal form performance, and moisture signal is passed to display module; Described display module is used for the standard humidity signal in moisture signal and standard module to contrast, and judges moisture signal whether within the scope of default humidity error, and by judgment result displays out.
As preferably, described Temperature and Humidity module comprises at least two standard atmosphere sensors, the mean value of the plural temperature signal of all standard atmosphere sensor Real-time Collections is as standard temperature signal, and the mean value of the plural moisture signal of all standard atmosphere sensor Real-time Collections is as standard humidity signal.
As preferably, each described multi-selection device comprises 8 signal input ports.
As preferably, be provided with interface board between described data acquisition module and described data acquisition module, described data acquisition module is communicated with described data acquisition module by described interface board.
As preferably, described multichannel Temperature Humidity Sensor automatic detection device also comprises power module, and described power module is connected with described display module; Described display module is liquid crystal display.
The Advantageous Effects of the technical scheme that the utility model embodiment proposes is:
(1) judge because this device replaces human subjective by automatic decision test result, so improve the accuracy of test result, there is test blindspot in what cause when solving the test result of the tested Temperature Humidity Sensor module of artificial subjective judgement, the accuracy of test result reduces, if any the display of humiture data, then show certificate very large may not be the problem of actual environment data.
(2) because this device realizes once testing multiple Temperature Humidity Sensor simultaneously, as long as device normally powers on, no matter when receive the data that Temperature Humidity Sensor to be measured gathers, can judge, and data processing is more quick, so any time all can test Temperature Humidity Sensor, increase substantially testing efficiency.Solve and cannot reach productive temp requirement far away in actual production, often cause the problem of testing heap plate.
(3) because pick-up unit is by multiplexed thought, on single-chip microcomputer a 8 AD acquisition channel is passed through time division multiplex, each AD passage selects 1 selector switch to realize 8 by 8 and selects 1 selection function, at different time gating passage, so can reach the object that can gather 64 road AD and input.
(4) because this pick-up unit comprises display module, described display module, as man-machine interface, can be good at test value or test result to display, and tester can get information about overall test case.
(5) owing to not carrying out concrete humidity calculating after the application's image data, but by directly the method that AD sampled data and standard module data compare being judged, if the difference of image data and normal data is within the scope of specification error, it is qualified to be then judged to be, so simplify data calculation process.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in the description of the utility model embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the content of the utility model embodiment and these accompanying drawings.
Fig. 1 is the structural representation of the multichannel Temperature Humidity Sensor automatic detection device that the utility model specific embodiment provides;
Fig. 2 is the structural representation of the multi-selection device that the utility model specific embodiment provides;
Fig. 3 is the method for work process flow diagram of the multichannel Temperature Humidity Sensor automatic detection device that the utility model specific embodiment provides.
In figure:
1, Temperature Humidity Sensor; 2, interface board; 3, data acquisition module; 4, display module; 5, power module; 6, standard atmosphere sensor; 7, power switch; 8, pilot lamp.
Embodiment
The technical matters solved for making the utility model, the technical scheme of employing and the technique effect that reaches are clearly, be described in further detail below in conjunction with the technical scheme of accompanying drawing to the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those skilled in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model, by hardware, software development, realizes the display of collection analysis to data and man-machine interface.Below whole solution development process is described in detail.
As shown in Figure 1, the multichannel Temperature Humidity Sensor automatic detection device that the application provides comprises Temperature and Humidity module, data acquisition module 3, display module 4, the signal output part of described Temperature and Humidity module is connected with the signals collecting port of described data acquisition module 3, and the signal output part of described data acquisition module 3 is connected with the signal input part of described display module 4.Described Temperature and Humidity module is used for the temperature signal in the external world of detection and moisture signal to pass to data acquisition module 3 with the form of voltage signal respectively; Described data acquisition module 3 shows for processing the voltage signal received and result being passed to described display module 4.
Judge because this device replaces human subjective by automatic decision test result, so improve the accuracy of test result, there is test blindspot in what cause when solving the test result of the tested Temperature Humidity Sensor module of artificial subjective judgement, the accuracy of test result reduces, if any the display of humiture data, then show certificate very large may not be the problem of actual environment data.
For this Temperature Humidity Sensor feature, no matter be temperature or humidity, final change reflects the change of environmental parameter mainly through the impedance variation of Temperature Humidity Sensor.So the utility model meets the data acquisition board of data acquisition mainly through exploitation, in the present embodiment, preferably, the check-out console that described Temperature and Humidity module comprises at least one Temperature Humidity Sensor 1 and is connected with described Temperature Humidity Sensor 1, described Temperature Humidity Sensor 1 forms signal acquisition circuit with the testing circuit of described check-out console, and the change of Temperature Humidity Sensor 1 resistance value is converted into voltage signal by described signal acquisition circuit.
Because this device realizes once testing multiple Temperature Humidity Sensor 1 simultaneously, as long as device normally powers on, no matter when receive the data that Temperature Humidity Sensor 1 to be measured gathers, can judge, and data processing is more quick, so any time all can test Temperature Humidity Sensor 1, increase substantially testing efficiency.Solve and cannot reach productive temp requirement far away in actual production, often cause the problem of testing heap plate.
In the present embodiment, preferably, described Temperature and Humidity module also comprises at least one standard atmosphere sensor 6, and described standard atmosphere sensor 6 is for Real-time Collection standard temperature signal and standard humidity signal.And the standard temperature signal collected and standard humidity signal are sent in the standard module of data acquisition module 3 or display module 4 preserve, as the basis that the temperature signal gathered with Temperature Humidity Sensor 1 and moisture signal contrast, and then judge the standard whether Temperature Humidity Sensor 1 is qualified.Standard temperature signal in described standard module and standard humidity signal can carry out changing with the humiture change of external environment condition, so standard atmosphere sensor 6 can the temperature signal in the Real-Time Monitoring external world and moisture signal preserve, basis as a comparison.
In the present embodiment, as further preferred version, described Temperature and Humidity module comprises at least two standard atmosphere sensors 6, the mean value of the plural temperature signal of all standard atmosphere sensor 6 Real-time Collections is as standard temperature signal, and the mean value of the plural moisture signal of all standard atmosphere sensor 6 Real-time Collections is as standard humidity signal.
In the present embodiment, preferably, data acquisition module 3 mainly adopts single-chip microcomputer, and utilize the AD of single-chip microcomputer to gather port, UART port realizes data acquisition, conversion and communication function respectively.Single-chip microcomputer is used for carrying out sampling and processing to the data that Temperature Humidity Sensor 1 obtains.Concrete, gathered temperature signal or moisture signal are passed to single-chip microcomputer by Temperature Humidity Sensor 1 in the form of a voltage, and voltage signal is converted into the temperature signal and moisture signal that can use or show by single-chip microcomputer.
Single-chip microcomputer only can realize conversion and the process of data, but final testing result how, single-chip microcomputer is difficult to intuitively tell tester concrete test case, so this pick-up unit develops the display module 4 that can be shown test result very well, display module 4 is man-machine interface, by man-machine interface, tester can intuitively with understanding overall test case.
According to system requirements, each Temperature and Humidity module need realize two paths of data collection, so each Temperature and Humidity module need have two paths of signals acquisition channel, if realize once to the measuring ability of 30 Temperature Humidity Sensors, system needs to provide 64 road signal sampling channels altogether, and general single-chip microcomputer is difficult to meet this requirement.So this programme is by multiplexed thought, by the signal sampling channel of 8 on single-chip microcomputer by time division multiplex, be all connected with a multi-selection device at each signal sampling channel, described multi-selection device is connected with described Temperature and Humidity module.Preferably, as shown in Figure 2, each described multi-selection device comprises 8 signal input ports, and each signal sampling channel selects 1 selector switch to realize 8 by 8 and selects 1 selection function, at different time gating passage, reaches the object that can gather 64 road AD and input.
In the present embodiment, preferably, the model of described selector switch is MC14051B.Signal sampling channel input signal derives from and is presented as 0-5V voltage, in system work process, by circulation, by 1-8, select selector switch conductive channel successively, such as, when being chosen as 1, the voltage that the signal being then input to acquisition port inputs for selector switch 1, circulates so successively, realizes the voltage acquisition of 8 input ports.Here 8 passages are 8 acquisition port on single-chip microcomputer, and each acquisition port receives the selection output terminal selecting 1 selector switch for 8 respectively.Here signal, it is the voltage signal that Temperature Humidity Sensor 1 circuit continues to export, a lasting voltage, as long as system is when needs gather that sensor output voltage, it is strobed into selector switch to export, which sensor signal whole gatherer process, select be input to 8 and select 1 selector switch for gathering, controlled by systemic circulation completely.
So the pick-up unit that this programme provides can realize the A/D data collection port on 64 tunnels, temperature and the humidity data for the treatment of 30 thermometric humidity sensors 1 respectively gather, and computation and analysis judgement is carried out to data, whether the function providing tested Temperature Humidity Sensor 1 judges normally, finally reaches the effect of simultaneously testing 30 pieces of Temperature Humidity Sensors 1.
In the present embodiment, preferably, described multichannel Temperature Humidity Sensor automatic detection device also comprises the power module 5 for providing power supply for whole pick-up unit, and described power module 5 is connected with described display module 4.Concrete, described power module 5 is connected with the power switch 7 be switched on or switched off for controlling described power module 5, and described power module 5 is also connected with pilot lamp 8, when power module 5 is connected, described pilot lamp 8 is lighted, and when power module 5 disconnects, described pilot lamp 8 is closed or dimmed.
In the present embodiment, preferably, described display module 4 is liquid crystal display.Certainly, being not limited thereto, can also be other display device.
In the present embodiment, preferably, be provided with interface board 2 between described data acquisition module 3 and described Temperature and Humidity module, described data acquisition module 3 is communicated with described Temperature and Humidity module by described interface board 2.The program can facilitate the installation or removal between data acquisition module 3 and Temperature and Humidity module.
Present invention also provides a kind of detection method of multichannel Temperature Humidity Sensor automatic detection device.As shown in Figure 3, described detection method comprises step: S1, Temperature and Humidity module acquires temperature data and humidity data also pass to data acquisition module 3 with the form of voltage signal; The voltage signal received is converted into corresponding temperature data and humidity data by S2, data acquisition module 3, and temperature data and humidity data are passed to display module 4; Temperature data and humidity data compare with the standard temperature data in standard module and standard humidity data by S3, display module 4, judge the temperature data that gathers and humidity data whether in preset range, and by judgment result displays out.
Specific to test process, after system electrification starts test, tested Temperature Humidity Sensor 1 is connected with interface board 2 by four-core order wire by test man, obtain the Power supply of check-out console, module normally works, along with the change of temperature and humidity, the resistance value of Temperature Humidity Sensor 1 starts change, this and check-out console testing circuit form AD Acquisition Circuit, the change of humiture is converted to the change of impedance, the conversion of impedance converted again the change of circuit output voltage by AD Acquisition Circuit, by AD acquisition channel, voltage is carried out gathering and is converted to the discernible data of single-chip microcomputer, calculated by single-chip microcomputer inner equation, obtain relevant temperature value.Wherein, single-chip microcomputer does not carry out the calculating of humidity value, but directly the moisture signal collected is converted into the form identical with the only signal of the number in standard module.Data are transferred data to display module 4 by RS485 communication bus by single-chip microcomputer afterwards.After display module 4 obtains data, one by one according to standard value, the value of data and standard module is carried out contrasting judge that whether data that tested Temperature Humidity Sensor 1 gathers set at tester error range within.When temperature and humidity are all in error range, then judge that Temperature Humidity Sensor 1 function is normal, having an exception all to think in both there is exception in this Temperature Humidity Sensor 1.
Consider in test process, firm power up has the slowly stable process of data, so for the Temperature Humidity Sensor 1 of other test failures at the beginning, data acquisition module 3 can continue image data, continue to judge, always underproof, judge defective.
Concrete, temperature value for being converted to temperature value to what receive with the temperature signal of voltage signal form performance, and is passed to display module 4 by described data acquisition module 3; Described display module 4, for the standard temperature value in temperature value and standard module being contrasted, judges temperature value whether in preset temperature error range, and temperature value and judged result is shown simultaneously.
Concrete, moisture signal for being converted into the data mode identical with the standard humidity signal in standard module by what receive with the moisture signal of voltage signal form performance, and is passed to display module 4 by described data acquisition module 3; Described display module 4, for being contrasted by the standard humidity signal in moisture signal and standard module, judges moisture signal whether within the scope of default humidity error, and by judgment result displays out.
Owing to not carrying out concrete humidity calculating after the application's image data, but by directly the method that AD sampled data and standard module data compare being judged, if the difference of image data and normal data is within the scope of specification error, then it is qualified to be judged to be.So simplify data calculation process.
Not only testing process is simplified by above pick-up unit and detection method, and data processing is more quick, realize the Temperature Humidity Sensor test of any time (as long as namely device normally powers on, no matter when receive Temperature Humidity Sensor to be measured, can judge, and without the need to re-powering or carrying out other operations).In addition, in order to show the test result of relevant module to be measured in real time, device specially develops corresponding display module 4, improves good man-machine interface, checks dependence test result intuitively for tester.
Note, above are only preferred embodiment of the present utility model and institute's application technology principle.Skilled person in the art will appreciate that the utility model is not limited to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and protection domain of the present utility model can not be departed from.Therefore, although be described in further detail the utility model by above embodiment, but the utility model is not limited only to above embodiment, when not departing from the utility model design, can also comprise other Equivalent embodiments more, and scope of the present utility model is determined by appended right.
Claims (7)
1. a multichannel Temperature Humidity Sensor automatic detection device, it is characterized in that, comprise data acquisition module, Temperature and Humidity module that output terminal is connected with the signals collecting port of described data acquisition module and the display module that input end is connected with the output terminal of described data acquisition module;
Described Temperature and Humidity module is used for the temperature signal in the external world detected and moisture signal to pass to data acquisition module with the form of voltage signal respectively;
Described data acquisition module is used for processing the voltage signal received and result being passed to described display module showing;
The check-out console that described Temperature and Humidity module comprises at least one Temperature Humidity Sensor and is connected with described Temperature Humidity Sensor, the testing circuit of described Temperature Humidity Sensor and described check-out console forms signal acquisition circuit, and the change of Temperature Humidity Sensor resistance value is converted into voltage signal by described signal acquisition circuit;
Described Temperature and Humidity module also comprises at least one standard atmosphere sensor, described standard atmosphere sensor is used for Real-time Collection standard temperature signal and standard humidity signal, and is kept in described standard module by gathered standard temperature signal and standard humidity signal;
Each signal sampling channel of described data acquisition module is all connected with a multi-selection device, and described multi-selection device is connected with described Temperature and Humidity module.
2. multichannel Temperature Humidity Sensor automatic detection device as claimed in claim 1, is characterized in that, described data acquisition module is used for being converted to temperature value to what receive with the temperature signal of voltage signal form performance, and temperature value is passed to display module; Described display module is used for the standard temperature value in temperature value and standard module to contrast, and judges temperature value whether in preset temperature error range, and temperature value and judged result is shown simultaneously.
3. multichannel Temperature Humidity Sensor automatic detection device as claimed in claim 2, it is characterized in that, described data acquisition module is used for being converted into the data mode identical with the standard humidity signal in standard module by what receive with the moisture signal of voltage signal form performance, and moisture signal is passed to display module; Described display module is used for the standard humidity signal in moisture signal and standard module to contrast, and judges moisture signal whether within the scope of default humidity error, and by judgment result displays out.
4. multichannel Temperature Humidity Sensor automatic detection device as claimed in claim 3, it is characterized in that, described Temperature and Humidity module comprises at least two standard atmosphere sensors, the mean value of the plural temperature signal of all standard atmosphere sensor Real-time Collections is as standard temperature signal, and the mean value of the plural moisture signal of all standard atmosphere sensor Real-time Collections is as standard humidity signal.
5. multichannel Temperature Humidity Sensor automatic detection device as claimed in claim 4, it is characterized in that, each described multi-selection device comprises 8 signal input ports.
6. multichannel Temperature Humidity Sensor automatic detection device as claimed in claim 1, it is characterized in that, be provided with interface board between described data acquisition module and described data acquisition module, described data acquisition module is communicated with described data acquisition module by described interface board.
7. multichannel Temperature Humidity Sensor automatic detection device as claimed in claim 1, it is characterized in that, also comprise power module, described power module is connected with described display module; Described display module is liquid crystal display.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572580A (en) * | 2017-03-08 | 2018-09-25 | 天津华彩信和电子科技集团股份有限公司 | A kind of networking lamp stand control panel, networking lamp stand and its control method |
| CN110736492A (en) * | 2019-11-29 | 2020-01-31 | 佛山市川东磁电股份有限公司 | batch detection circuit based on temperature and humidity sensor |
| CN112460746A (en) * | 2020-11-14 | 2021-03-09 | 上海卓腾展览展示有限公司 | Temperature and humidity control method, system and device and storage medium |
| CN114226286A (en) * | 2022-02-23 | 2022-03-25 | 国家海洋技术中心 | Testing and screening device for thermohaline depth measuring instrument |
-
2014
- 2014-09-16 CN CN201420531942.8U patent/CN204439108U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572580A (en) * | 2017-03-08 | 2018-09-25 | 天津华彩信和电子科技集团股份有限公司 | A kind of networking lamp stand control panel, networking lamp stand and its control method |
| CN110736492A (en) * | 2019-11-29 | 2020-01-31 | 佛山市川东磁电股份有限公司 | batch detection circuit based on temperature and humidity sensor |
| CN112460746A (en) * | 2020-11-14 | 2021-03-09 | 上海卓腾展览展示有限公司 | Temperature and humidity control method, system and device and storage medium |
| CN114226286A (en) * | 2022-02-23 | 2022-03-25 | 国家海洋技术中心 | Testing and screening device for thermohaline depth measuring instrument |
| CN114226286B (en) * | 2022-02-23 | 2022-05-24 | 国家海洋技术中心 | Testing and screening device for thermohaline depth measuring instrument |
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