CN203595551U - Short-distance wireless infrared multipath temperature-collecting system for grain depot - Google Patents
Short-distance wireless infrared multipath temperature-collecting system for grain depot Download PDFInfo
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- CN203595551U CN203595551U CN201320569517.3U CN201320569517U CN203595551U CN 203595551 U CN203595551 U CN 203595551U CN 201320569517 U CN201320569517 U CN 201320569517U CN 203595551 U CN203595551 U CN 203595551U
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Abstract
The utility model discloses a short-distance wireless infrared multipath temperature-collecting system for a grain depot, and the system comprises a temperature collection end and a temperature data receiving end. The temperature collection end consists of a power circuit module, a multipath temperature-collecting circuit module, a reset circuit module, a wireless transmitting module, and a single-chip microcomputer master control chip. The temperature data receiving end consists of a power circuit module, a liquid display module, a reset circuit module, a keyboard module, an alarm circuit module, a wireless receiving module, and a single-chip microcomputer. The system provided by the utility model employs a plurality of infrared temperature sensors to collect the temperature data of all points in the grain depot, can measure the real surface temperature of a non-contact object quickly and conveniently, and can reflect the change of the local temperature of grains in the grain depot timely, thereby effectively preventing the interlocking mildewing of grains, and guaranteeing the safe storage of the gains in the grain depot. The system employs the wireless data transmission module and avoids the complex wiring of cables, is high in rate of communication, and is low in power consumption in the standby mode.
Description
Technical field
The utility model relates to a kind of temperature acquisition system, particularly a kind of short-distance wireless infrared multi channel temperature acquisition system of grain depot.
Background technology
Temperature survey plays an important role in industrial and agricultural production and daily life, for example city dweller's heating station detection, large-scale temperature warehouse temperature detection, commercial production observing and controlling and agricultural production measurement and control of temperature etc.Multipoint temperature measuring system can detect, show and store the temperature of multiple working points, productive life is brought to very large facility.Conventional temperature TT&C system is to monitoring room or upper PC by measured temperature data wire transmission, although wire transmission has certain advantage at the aspect such as transmission speed and operational reliability, but wired wiring is just more difficult in the time that environment is severe, and position is moved also inconvenient, for example in silo or booth, often need to convert test position, it is cumbersome that wired wiring also can seem.And wireless transmission method can solve the problem of wire transmission well.Short-distance wireless Temperature Control carries out temperature survey by temperature sensor to multiple observation stations, then transmit and receive measurement data by wireless transport module, be applicable to multipoint temperature measuring and the commercial production observing and controlling etc. of grain depot and warmhouse booth, being also applicable to high-radiation area and high infection district etc. has the occasion of serious harm to health of human body.
In grain depot, existing short-distance wireless Temperature Control generally adopts contact digital temperature sensor as its temperature acquisition instrument, therefore must fully contact grain and could measure its true temperature, so in the time taking out grain or place new grain, these sensors all need to be taken out, after shifting, grain reapposes again temperature sensor, so not only lost time but also very loaded down with trivial details, therefore people are generally arranged in temperature sensor near the maximum magnitude region of stackable grain in grain depot, temperature sensor must could facilitate at a distance of grain one segment distance the transfer of grain like this, cause contact type temperature sensor can only measure near its air themperature, and can not correctly reflect in time the true temperature of local grain.The temperature control of grain depot each point has a great impact the safety margin of grain, if monitoring system can not correctly reflect the phenomenon that local cereal temperature raises suddenly in time, will inevitably cause going mouldy of grain, then cause chain reaction, cause irremediable loss.Therefore, design is a kind of just seems very necessary at the contactless temperature acquisition system of grain depot short-distance and medium-distance wireless multi-path.
Utility model content
For addressing the above problem, the utility model discloses a kind of short-distance wireless infrared multi channel temperature acquisition system of grain depot.
In order to achieve the above object, the utility model provides following technical scheme: a kind of short-distance wireless infrared multi channel temperature acquisition system of grain depot, comprise temperature acquisition end and temperature data receiving end, described temperature data acquisition end is by power circuit module, multiplex temperature collection circuit module, reset circuit module, wireless transmitter module and single-chip microcomputer main control chip composition, described power circuit module and multiplex temperature collection circuit module and single-chip microcomputer main control chip are connected to its power supply, described multiplex temperature collection circuit module signal is sent into wireless transmitter module through single-chip microcomputer main control chip, described temperature data receiving end is made up of power circuit module, LCD MODULE, reset circuit module, Keysheet module, warning circuit module, wireless receiving module and single-chip microcomputer, power circuit module is respectively single-chip microcomputer, liquid crystal display circuit and wireless receiving module power supply, and described LCD MODULE, reset circuit module, Keysheet module, warning circuit module, wireless receiving module are connected with described single-chip microcomputer respectively.
As a kind of improvement of the present utility model, described multiplex temperature collection circuit module adopts contactless temperature-measuring sensor.
As a kind of improvement of the present utility model, described contactless temperature-measuring sensor is infrared temperature-test sensor TN9.
As a kind of improvement of the present utility model, described wireless transmitter module and wireless receiving module all adopt nRF24L01 chip.
As a kind of improvement of the present utility model, the model of described singlechip chip is STC89C52.
The beneficial effects of the utility model:
The utility model adopts multiple infrared temperature sensors to gather each point temperature data in grain depot, can measure quickly and easily the real surface temperature of non-contact object, therefore can correctly reflect in time that in grain depot, local cereal temperature changes, effectively avoid the chain of grain to go mouldy, ensure the safety margin of grain in grain depot, and by the temperature variation of non-contact mode measuring each point place grain, can not affect the normal transfer of grain in grain depot.This system adopts nRF24L01 wireless data transfer module to avoid complicated cable distribution, and there is the low especially feature of power consumption under high communication rate, standby mode, when completing after temperature acquisition task, native system can enter dormant state automatically to save power consumption, waits for the startup of temperature data acquisition task next time.
Accompanying drawing explanation
Fig. 1 is system architecture diagram of the present utility model;
Fig. 2 is temperature data acquisition terminal circuit figure of the present utility model;
Fig. 3 is temperature data receiving terminal circuit figure of the present utility model.
Embodiment
Technical scheme the utility model being provided below with reference to specific embodiment is elaborated, and should understand following embodiment and only be not used in restriction scope of the present utility model for the utility model is described.
Fig. 1 is the short-distance wireless infrared multi channel temperature acquisition system structured flowchart of a kind of grain depot of the present utility model, comprise temperature acquisition end and temperature data receiving end, described temperature data acquisition end is made up of power circuit module, multiplex temperature collection circuit module, reset circuit module, wireless transmitter module and single-chip microcomputer main control chip, described power circuit module and multiplex temperature collection circuit module and single-chip microcomputer main control chip are connected to its power supply, and described multiplex temperature collection circuit module signal is sent into wireless transmitter module through single-chip microcomputer main control chip; Described temperature data receiving end is made up of power circuit module, LCD MODULE, reset circuit module, Keysheet module, warning circuit module, wireless receiving module and single-chip microcomputer, power circuit module is respectively single-chip microcomputer, liquid crystal display circuit and wireless receiving module power supply, and described LCD MODULE, reset circuit module, Keysheet module, warning circuit module, wireless receiving module are connected with described single-chip microcomputer respectively.
Fig. 2 temperature data acquisition terminal circuit of the present utility model figure, singlechip chip adopts STC89C52, and multiplex temperature collection circuit module adopts 4 non-contact infrared temperature sensor TN9 circuit, TN91-TN93.Wireless transmitter module adopts nRF24L01 chip.The direct current that power circuit adopts power supply adaptor civil power to be converted to 5V is powered to single-chip microcomputer STC89C52 and infrared temperature sensor TN9, because the supply voltage of nRF24l01 chip is that 1.9V is between 3.6V, therefore the mu balanced circuit that has designed a 3.3V output, 5V voltage has been exported stable 3.3V voltage through three-terminal voltage-stabilizing pipe AMS1117-3.3.Single chip control module circuit is made up of clock circuit and the reset circuit of monolithic STC89C5.When single-chip microcomputer powers up, oscillator will be worked always, produces lasting running clock.Reset circuit is to power on to automatically reset, and in the time that crystal oscillator is worked, RST pin continues 2 machine cycle high level will make monolithic processor resetting.
The Non-contact Infrared Temperature Measurement sensor TN9 that native system adopts, it is a kind of integrated infrared eye, there are linear circuit and temperature-compensation circuit in inside, its measuring distance is approximately 30 meters, response time is approximately 0.5 second, it possesses SPI interface, can carry out data transmission with single-chip microcomputer easily, is therefore very suitable for the non-contact type temperature measurement of each point in grain depot.This temperature acquisition terminal circuit has adopted 4 infrared temperature-test sensor TN9, each TN9 sensor scans tested local grain by infrared temperature sensor, and corresponding ir radiation data is sent to single-chip microcomputer by pin 2 and 3, pin 5 is the enabling signal pin of temperature measurement module TN9, Low level effective.
NRF24L01 is a wireless transceiver chip that is operated in 2.4 ~ 2.5GHz frequency range, its inner integrated frequency generator, enhancement mode SchockBurstTM mode controller, power amplifier, crystal oscillator, modulator, detuner etc., its degree of integration is high, and arranging of output power, channel selection and agreement can arrange by SPI interface.Pin CE, MOSI, MISO, CSN, SCK and the IRQ of wireless transceiver nRF24L01 is connected with the common IO mouth of main control chip STC89C52 respectively, by these common IO mouth simulation SPI sequential, thereby communicating by letter of the temperature data between control single chip computer and wireless transceiver nRF24L01 module, and temperature data is transferred to host computer by wireless channel.
Fig. 3 is temperature data receiving terminal circuit figure of the present utility model, single-chip microcomputer adopts STC89C52, the compositions such as wireless receiving module circuit adopts that nRF24L01 chip, liquid crystal display circuit adopt that LCD12864 liquid crystal display, warning circuit adopt that hummer is reported to the police, keyboard circuit and power circuit.The direct current that power circuit employing power supply adaptor converts civil power to 5V is to power supplies such as single-chip microcomputer STC89C52, liquid crystal display and hummers, and the mu balanced circuit that is output as 3.3V is powered to wireless transceiver nRF24L01.
This circuit adopts wireless transceiver nRF24L01 to receive the temperature data that temperature data acquisition end sends, the pin CE of nRF24L01, MOSI, MISO, CSN, SCK, and IRQ is connected with the common IO mouth of main control chip STC89C52 respectively, simulate SPI sequential by these common IO mouths, thereby control wireless transceiver nRF24L01 temperature data is transferred to single-chip microcomputer, after single-chip microcomputer STC89C52 processes, directly the title of each measurement point and temperature thereof are shown in real time in LCD12864 liquid crystal display, if too high or too low for temperature, start buzzer alarm circuit work.The temperature alarming bound of 4 measurement points can be set by 4 buttons, to better control environment temperature.4 button K1, K2, K3 and K4 are connected respectively P3.4, P3.5, P3.6 and the P3.7 mouth of single-chip microcomputer, K1 key is function key, for selecting to adjust the measurement point of alarm temperature, K2 is for switching the set temperature upper limit or lower limit, and K3 and K4 key often click and represent that respectively the upper limit of set temperature or lower limit add 1 ℃ and subtract 1 ℃ of operation.
The utility model adopts multiple infrared temperature sensors to gather each point temperature data in grain depot, can measure quickly and easily the real surface temperature of non-contact object, therefore can correctly reflect in time that in grain depot, local cereal temperature changes, effectively avoid the chain of grain to go mouldy, ensure the safety margin of grain in grain depot, and by the temperature variation of non-contact mode measuring each point place grain, can not affect the normal transfer of grain in grain depot.This system adopts nRF24L01 wireless data transfer module to avoid complicated cable distribution, and there is the low especially feature of power consumption under high communication rate, standby mode, when completing after temperature acquisition task, native system can enter dormant state automatically to save power consumption, waits for the startup of temperature data acquisition task next time.
The disclosed technological means of the utility model scheme is not limited only to the disclosed technological means of above-mentioned embodiment, also comprises the technical scheme being made up of above technical characterictic combination in any.
Claims (5)
1. the short-distance wireless infrared multi channel temperature acquisition system of a grain depot, it is characterized in that: comprise temperature data acquisition end and temperature data receiving end, described temperature data acquisition end is made up of power circuit module, multiplex temperature collection circuit module, reset circuit module, wireless transmitter module and single-chip microcomputer main control chip, described power circuit module and multiplex temperature collection circuit module and single-chip microcomputer main control chip are connected to its power supply, and described multiplex temperature collection circuit module signal is sent into wireless transmitter module through single-chip microcomputer main control chip; Described temperature data receiving end is made up of power circuit module, LCD MODULE, reset circuit module, Keysheet module, warning circuit module, wireless receiving module and single-chip microcomputer, power circuit module is respectively single-chip microcomputer, liquid crystal display circuit and wireless receiving module power supply, and described LCD MODULE, reset circuit module, Keysheet module, warning circuit module, wireless receiving module are connected with described single-chip microcomputer respectively.
2. the short-distance wireless infrared multi channel temperature acquisition system of a kind of grain depot according to claim 1, is characterized in that: described multiplex temperature collection circuit module adopts contactless temperature-measuring sensor.
3. the short-distance wireless infrared multi channel temperature acquisition system of a kind of grain depot according to claim 2, is characterized in that: described contactless temperature-measuring sensor is infrared temperature-test sensor TN9.
4. the short-distance wireless infrared multi channel temperature acquisition system of a kind of grain depot according to claim 1, is characterized in that: described wireless transmitter module and wireless receiving module all adopt nRF24L01 chip.
5. the short-distance wireless infrared multi channel temperature acquisition system of a kind of grain depot according to claim 1, is characterized in that: the model of described singlechip chip is STC89C52.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569517.3U CN203595551U (en) | 2013-09-13 | 2013-09-13 | Short-distance wireless infrared multipath temperature-collecting system for grain depot |
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| CN201320569517.3U CN203595551U (en) | 2013-09-13 | 2013-09-13 | Short-distance wireless infrared multipath temperature-collecting system for grain depot |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727236A (en) * | 2017-09-01 | 2018-02-23 | 鹤壁德粮电子有限公司 | Thermal imaging Grain storage heating scans visible system |
| CN111076822A (en) * | 2019-12-13 | 2020-04-28 | 富德康(北京)科技股份有限公司 | Splicing array method for generating bulk thermodynamic diagram |
| CN111397748A (en) * | 2020-04-24 | 2020-07-10 | 向文军 | Wooden package heat treatment temperature recorder |
-
2013
- 2013-09-13 CN CN201320569517.3U patent/CN203595551U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727236A (en) * | 2017-09-01 | 2018-02-23 | 鹤壁德粮电子有限公司 | Thermal imaging Grain storage heating scans visible system |
| CN111076822A (en) * | 2019-12-13 | 2020-04-28 | 富德康(北京)科技股份有限公司 | Splicing array method for generating bulk thermodynamic diagram |
| CN111397748A (en) * | 2020-04-24 | 2020-07-10 | 向文军 | Wooden package heat treatment temperature recorder |
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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: 20140514 Termination date: 20150913 |
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| EXPY | Termination of patent right or utility model |