阅读说明：本技术 一种基于震动分析的西瓜成熟检测装置 (A kind of watermelon maturation detection device based on vibration analysis ) 是由 郑兆娥 于 2019-08-17 设计创作，主要内容包括：本发明属于农业技术领域,尤其为一种基于震动分析的西瓜成熟检测装置,包含保护壳,所述保护壳的顶端安设有显示屏,所述保护壳的一侧面安设有开关,所述保护壳的内部分别安设有电池、CPU,所述保护壳的一侧面开设有充电口,通过偏心轮结构与齿条部分的齿轮切合转动将震动棍整体向上滑动时,挤压一号弹簧将震动棍向下弹回,带动测量棍向下弹时,其二号弹簧带动测量棍来回震动,二号弹簧具有减震的作用,震动时,可以有些间隙,提供测量时的间隙,通过计时器、计数器、一号压力传感器进行对西瓜震动的次数/压力、时间/压力的检测,通过显示屏上得出西瓜成熟程度的结果,直观明了,使用简单方便,且检测结果准确。(The invention belongs to agricultural technology fields, in particular a kind of watermelon maturation detection device based on vibration analysis, include protective shell, the top of the protective shell is installed on display screen, the one side of the protective shell is installed on switch, the inside of the protective shell is installed on battery respectively, CPU, the one side of the protective shell offers charge port, when rod entirety upward sliding will be shaken by suiting rotation by the gear of eccentric wheel structure and section of rack, it squeezes No.1 spring and rebounds rod is shaken downwards, when measurement rod being driven to play downwards, secondly number spring drives measurement rod to shake back and forth, No. two springs have the function of damping, when vibration, it can some gaps, gap when measurement is provided, pass through timer, counter, No.1 pressure sensor carries out the number/pressure shaken to watermelon, the detection of time/pressure, by being obtained on display screen Watermelon maturity as a result, simple and clear, it is easy to use, and testing result is accurate.)

1. a kind of watermelon maturation detection device based on vibration analysis, it is characterised in that: include protective shell (1), the protective shell (1) top is installed on display screen (2), and the one side of the protective shell (1) is installed on switch (3), the protective shell (1) it is interior Portion is installed on battery (4), CPU(6 respectively), the one side of the protective shell (1) offers charge port (5), the protective shell (1) Middle part be installed on heat-dissipating aluminium plate (7), the bottom inner portion of the protective shell (1) is installed on motor (8), the motor (8) it is interior Side is installed on eccentric wheel structure (9), and the side of the eccentric wheel structure (9) is installed on vibration rod (19), the vibration rod (19) Outer ring be installed on section of rack (10), it is described vibration rod (19) top outer ring be installed on No.1 spring (11), the vibration The top of rod (19) is installed on No. two blocking positions (13), and the vibration rod (19) is installed on No.1 by middle part and stops position (12), institute The bottom side for stating vibration rod (19) is installed on No. two pressure sensors (17), and the side of vibration rod (19) is installed on measurement rod (20), the outer ring of measurement rod (20) is installed on No. two springs (13), and the side of measurement rod (20) is installed on meter respectively When device (14), counter (15), it is described measurement rod (20) bottom side be installed on No.1 pressure sensor (16), the protective shell (1) bottom end is provided with detection adaptation mouth (18).

2. a kind of watermelon maturation detection device based on vibration analysis according to claim 1, it is characterised in that: described aobvious The shape of display screen (2) is rectangular, and outside is installed on protection tempering film.

3. a kind of watermelon maturation detection device based on vibration analysis according to claim 1, it is characterised in that: the shake Dynamic rod (19) are all exposed detection with the bottom end for measuring rod (20) and are adapted to mouth (18) 1mm.

4. a kind of watermelon maturation detection device based on vibration analysis according to claim 1, it is characterised in that: described one Number position (12) is stopped to stop the bottom end of position (21) to be installed on fixed frame with No. two, offers round hole in the middle part of two fixed frames, And vibration rod (19) penetrates.

5. a kind of watermelon maturation detection device based on vibration analysis according to claim 1, it is characterised in that: the survey Amount rod (20) is installed in a fixed frame lower end, and measures rod (20) top and be installed on No. two springs (13).

6. a kind of watermelon maturation detection device based on vibration analysis according to claim 1, it is characterised in that: the inspection Survey adaptation mouth (18) shape be it is round table-like, collar extension be big mouth, material use soft rubber.

7. a kind of watermelon maturation detection device based on vibration analysis according to claim 1, it is characterised in that: described to dissipate Hot aluminium sheet (7) is installed in the middle part one week of protective shell (1).

Technical field

The invention belongs to agricultural technology fields, and in particular to a kind of watermelon maturation detection device based on vibration analysis.

Background technique

Watermelon (scientific name: Citrullus lanatus (Thunb.) Matsum. et Nakai) annual liana of overgrowing； Stem, branch are sturdy, have apparent rib.Tendril is more sturdy, has pubescence, petiole is thick, close by pubescence；Blade papery, profile triangular shape It is oval, with white green, the short bristle of two masks, blade base heart.Monoecism.Female, male flower is singly born in axil.Male flower bennet It is 3-4 centimetres long, it is close by the long pubescence of yellowish-brown；Calyx cylinder is wide bell；Corolla is faint yellow；For stamen closely from life, filigree is short, coyote hole folding It is bent.Female flower: calyx and corolla and male flower are same；Ovary is oval, column cap kidney shape.Fruit is large-scale, is bordering on spherical or oval, meat, Succulence, peel smooth, color and decorative pattern are various.Seed is most, and oval, black, red, two sides is smooth, base portion blunt circle, usual side Edge slightly arches upward, flowering fruit bearing stage summer.

It cultivates all over China, kind is a lot of, and exocarp, pulp and seed are various informative, with Xinjiang, Gansu Lanzhou, Shandong The ground such as Dezhou, Dongtai are the most famous.Its original seed may be from Africa, and cultivation is rear incoming in the world torrid zone to temperate zone extensively China.

Watermelon is the fruit of summer, and pulp is sweet, can cool down and drive away summer heat；Seed oil-containing can make pastime food；Pericarp is medicinal, There is the benefits of heat-clearing, diuresis, blood pressure lowering.

1, ocular estimate

After fruit maturation, the hard light of pericarp, decorative pattern is clear, fruit umbilical region and base of fruit portion are to contract, recess, the fruit back from White turn of Huang and coarse, the villus on carpopodium largely falls off, and sits 1~2 section tendril before and after melon section and withers etc., these all can be used as The mark of watermelon maturation.

2, hand is touched or clap

Mature watermelon has touched smooth feeling with hand；And immature watermelon, there is astringent sense when being touched with hand.In addition, using hand rest Melon, beats or when thrum melon face, if issue bang, bang, bang low voiced sound be mostly ripe melon；On the contrary, if issue rub-a-dub, rub-a-dub, rub-a-dub solid sound , then it is to belong to unripe watermelon more.

3, labelling method

It is after pollination of blooming, to carry out single melon label according to the certain accumulated temperature of the maturation of each kind needs and number of days.By each product Accumulated temperature or number of days needed for kind is mature, extrapolate the maturity period.It sits the melon date by label and cuts melon inspection and combine, it is ensured that institute Adopt the maturity that watermelon reaches suitable.

4, hydrometer method

The specific gravity of mature watermelon and water is different at normal temperature.The specific gravity of water is 1, and the specific gravity of general mature melon be 0.9~ 0.95.Watermelon is observed into the water.If watermelon sinks completely, it is shown to be unripe watermelon；It emerges very big, illustrates the specific gravity of melon Less than 0.9, watermelon is overdone；If emerging less, it is shown to be ripe melon.

In practical applications, in order to judge whether watermelon is mature like clockwork, various factors, Bu Nengdan should be comprehensively considered With one because usually asserting.Harvest maturity should also be determined according to market situation.If locality supply can pick ninety percent ripe melon, Market was supplied afternoon on the same day or next day.Transportation and sales other places harvests medium well melon.

The quality of watermelon supplied on Vehicles Collected from Market is not good enough, and in addition to the factors such as kind kind property itself and Hybridization and degeneration, picking unripe watermelon is One important reason, other than lacking identification of experience to Watermelon Maturity, mainly human factor.Some melon growers think early Phase melon price height, unripe watermelon heavy weight, early harvesting is advantageous to the growth in later period and result, without considering that unripe watermelon influences quality.

According to number of days of the female flower after open determine the same kind of the maturity watermelon of watermelon under the conditions of same temperature, The number of days for being open into fruit maturation from female flower is substantially fixed, therefore the phase of bearing fruit of blooming plugged difference every 3 days in melon patch The mark stick of color, indicates flowering dates, then calculates the development number of days of every batch of (same color mark stick) fruit, then determines to adopt The receipts phase, this is the more scientific and reliable method of determining mature ratio, and simple and easy to do.General early-maturing variety female flower is open into Ripe need 28~30 days, medium variety female flower is open into maturation and needs 31~35 days, and late variety female flower is open into mature need 35 days More than.But phase temperature height of bearing fruit is different, blooms also different to mature number of days, the high fruit maturation of temperature is fast, the low fruit of temperature It is mature slow.Different regions temperature change is different, and the number of days that female flower is open into harvesting when introducing a fine variety variety of watermelon also changes.Therefore, It should pilot production melon sample determines its optimum maturity according to the data of Variety Introduction, and from morphological feature.It is determined according to accumulated temperature The maturity of watermelon this be a kind of more objective and accurate method.According to surveying and determination, the small fruit type kind of general Early maturity bloom to Mature accumulated temperature is 700 DEG C or so, and early-maturing variety is 800 DEG C or so, 900~1000 DEG C of medium variety, 1000 DEG C of medium variety More than.The foundation for using accumulated temperature as harvesting should measure record mean temperature daily, and calculate and bloom to mature number of days or fruit The accumulated temperature that the mean temperature of growth period, such as a kind fruit maturation need is 800 DEG C, and the mean daily temperature of knot melon phase is 25 DEG C, then female flower Post flowering needs 800 ÷ 25=32(days) it could be mature.Its maturity difference is determined according to the external appearance characteristic of watermelon The kind intrinsic feature can be all shown when kind fruit maturation, fruit surface color is by secretly brightening, color of the leather aging, the flower in fruit face Line is clear, touches and is smooth to the touch, and landing ground background color is in buff, and areola is recessed inwardly, and slightly shrinks at base of fruit, above equal It is on the contrary then be unripe watermelon for the morphological feature of ripe melon.It determines that its maturity pats fruit with hand according to the sound of fruit, issues " thump, thump " voiced sound is ripe melon, and issue clear and melodious sound is then unripe watermelon, and issuing and striking the sound of wood is negative flesh melon.According to fruit Specific gravity determines that the ratio of its maturity unripe watermelon is great, puts and sinks in water, and overdone melon then floats, and the melon of appropriateness maturation is half It bubbles through the water column.It is difficult to measure its specific gravity one by one when harvesting, generally judge by rule of thumb.

It determines that fine hair is sparse on maturity carpopodium according to the state of carpopodium and tendril, fall off for the performance of fruit maturation；In When leaf is climing normal, tendril on fruit section more than half is withered for ripe melon.

Compared with prior art:

When buying melon people the maturity of melon not being known about, the maturity of other melon can be tested according to personal experience by selling melon people, and be mentioned For suggesting, but selling melon people can not accomplish that ripe melon is selected in assurance very simply by virtue of experience, will affect customer purchase in this way Desire, while selling melon people and can also lose money, and watermelon, if differentiating mistake, will also result in waste when picking.

Summary of the invention

To solve the problems mentioned above in the background art.The present invention provides a kind of watermelon based on vibration analysis is mature Detection device has the characteristics that detection is accurate, easy to use, has and convince power.

To achieve the above object, the invention provides the following technical scheme: a kind of watermelon maturation detection based on vibration analysis Device includes protective shell, and the top of the protective shell is installed on display screen, and the one side of the protective shell is installed on switch, institute The inside for stating protective shell is installed on battery, CPU respectively, and the one side of the protective shell offers charge port, the protective shell Middle part is installed on heat-dissipating aluminium plate, and the bottom inner portion of the protective shell is installed on motor, is installed on eccentric wheel on the inside of the motor Structure, the side of the eccentric wheel structure are installed on vibration rod, and the outer ring of the vibration rod is installed on section of rack, the vibration The top outer ring of rod is installed on No.1 spring, and the top of the vibration rod is installed on No. two blocking positions, and the vibration rod leans on middle part It is installed on No.1 and stops position, the bottom side of the vibration rod is installed on No. two pressure sensors, and the side of the vibration rod is installed on Rod is measured, the outer ring of the measurement rod is installed on No. two springs, and the side of the measurement rod is installed on timer respectively, counts Device, the bottom side of the measurement rod are installed on No.1 pressure sensor, and the bottom end of the protective shell is provided with detection adaptation mouth.

Preferably, the shape of the display screen is rectangular, and outside is installed on protection tempering film, passes through the display screen installed It can show testing result, it is simple and clear.

Preferably, vibration rod is all exposed detection with the bottom end for measuring rod and is adapted to mouth 1mm, passes through vibration rod and the bottom for measuring rod End is all exposed detection adaptation mouth 1mm, convenient for when detecting watermelon, guaranteeing fitting watermelon surface.

Preferably, the No.1 stops the bottom end of position and No. two blocking positions to be installed on fixed frame, and two fixed frames middle part is It offers round hole, and shakes rod and penetrate, stop position, No. two blocking positions to play position-limiting action by the No.1 installed, when passing through When the gear of eccentric wheel structure and section of rack suits rotation for rod entirety upward sliding is shaken, rod will be shaken by squeezing No.1 spring It rebounds downwards, when rod entirety upward sliding will be shaken by suiting rotation again by the gear of eccentric wheel structure and section of rack, electricity Machine stops driving eccentric wheel structure rotation, and screen resilience is added to measurement rod, by measuring the rod screen resilience slight to watermelon, It carries out to watermelon shock detection.

Preferably, the measurement rod is installed in a fixed frame lower end, and measures rod top and be installed on No. two springs, when passing through The downward elastic force of rod is shaken, when measurement rod being driven to play downwards, secondly number spring drives measurement rod to shake back and forth, No. two springs have The effect of damping, and shake when, can some gaps, gap when measurement is provided, timer, counter, No.1 pressure are passed through Sensor carries out the number/pressure shaken to watermelon, the detection of time/pressure, carries out that data are calculated by CPU, and draw Waveform diagram processed facilitate later data compare and research, and on a display screen present maturity as a result, simple and clear.

Preferably, the shape of the detection adaptation mouth is round table-like, and collar extension is big mouth, and material uses soft rubber, is led to It is round table-like for crossing detection adaptation mouth, and uses soft rubber, is conducive to the protection to watermelon crust, easy to use.

Preferably, the heat-dissipating aluminium plate is installed in the middle part one week of protective shell, is able to carry out by the heat-dissipating aluminium plate installed Heat dissipation, improves service life.

Compared with prior art, the beneficial effects of the present invention are: when being cut by the gear of eccentric wheel structure and section of rack When rod entirety upward sliding will be shaken by closing rotation, squeezes No.1 spring and rebound rod is shaken downwards, again by eccentric wheel structure When rod entirety upward sliding will be shaken by suiting rotation with the gear of section of rack, motor stops driving eccentric wheel structure rotation, Screen resilience is added to measurement rod, when measurement rod being driven to play downwards, secondly number spring drives measurement rod to shake back and forth, No. two springs When having the function of damping, and shaking, can some gaps, gap when measurement is provided, timer, counter, No.1 are passed through Pressure sensor carries out the number/pressure shaken to watermelon, the detection of time/pressure, carries out that data are calculated by CPU, And draw waveform diagram and later data facilitated to compare and research, and present on a display screen maturity as a result, simple and clear, make With simple and convenient, and testing result is accurate, can be convincing, is round table-like by detection adaptation mouth, and use soft rubber, Be conducive to the protection to watermelon crust, it is easy to use, heat dissipation is able to carry out by the heat-dissipating aluminium plate installed, improves and uses the longevity Life.

Detailed description of the invention

Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:

Fig. 1 is the schematic diagram of the section structure of the invention；

Fig. 2 is overlooking structure diagram of the invention；

Fig. 3 is flowage structure schematic diagram of the invention；

Fig. 4 is number/pressure waveform diagram of the invention；

Fig. 5 is time of the invention/pressure waveform configuration schematic diagram；

In figure: 1, protective shell；2, display screen；3, it switchs；4, battery；5, charge port；6,CPU；7, heat-dissipating aluminium plate；8, motor；9, Eccentric wheel structure；10, section of rack；11, No.1 spring；12, No.1 stops position；13, No. two springs；14, timer；15, it counts Number device；16, No.1 pressure sensor；17, No. two pressure sensors；18, detection adaptation mouth；19, rod is shaken；20, rod is measured； 21, No. two blocking positions.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.