CN111721662B - Method and system for measuring water content of fungus stick - Google Patents
Method and system for measuring water content of fungus stick Download PDFInfo
- Publication number
- CN111721662B CN111721662B CN202010431605.1A CN202010431605A CN111721662B CN 111721662 B CN111721662 B CN 111721662B CN 202010431605 A CN202010431605 A CN 202010431605A CN 111721662 B CN111721662 B CN 111721662B
- Authority
- CN
- China
- Prior art keywords
- stick
- water content
- mushroom
- fungus stick
- fungus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
- G01N5/025—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content for determining moisture content
Abstract
The embodiment of the invention relates to the technical field of edible fungus cultivation production, and provides a method and a system for measuring the water content of a fungus stick, wherein the method for measuring the water content of the fungus stick comprises the steps of obtaining the initial weight and the initial water content of the fungus stick at different periods, and obtaining the real-time weight of the fungus stick from a wireless weighing device for placing the fungus stick according to a preset time interval; and determining the water content of the fungus sticks in different periods according to the initial weight, the initial water content and the real-time weight of the fungus sticks. The method for measuring the water content of the mushroom stick provided by the embodiment of the invention has the advantages of simple measuring process, high response speed, no influence of the composition of the culture material in the mushroom stick and high measuring accuracy.
Description
Technical Field
The invention relates to the technical field of edible fungus cultivation production, in particular to a method and a system for measuring water content of a fungus stick.
Background
The water is used as a carrier of various physiological metabolisms of the edible fungi and is vital to the growth and development of the edible fungi. In the production process of the edible fungi, the water content of the culture medium is reduced in different degrees, and at this time, water needs to be injected into the culture medium to supplement the water required by the growth and development of the edible fungi, so that the water content of the culture medium needs to be measured in the production process of the edible fungi.
In the production of edible fungi, the detection of the water content of bag-cultivation culture media such as mushroom sticks is mainly carried out by a hand feeling, a drying method and a dielectric method. The hand feeling mode is relatively extensive, the water content of the culture medium is estimated only by experience, the error is large, the required water injection amount cannot be accurately calculated, and uncertain factors are brought to production. At present, a drying method is mostly adopted, and the principle is that a quartz heater, infrared rays and a halogen lamp are used for heating on a high-precision balance, and the weight difference between the weight before heating and the weight after heating is calculated to obtain the water-containing weight of the fungus stick. Common measuring equipment is an infrared moisture meter FD-600 and an MA100 moisture meter. The drying method needs to select a sample in advance, the sample is placed in an instrument for measurement, online real-time monitoring cannot be provided, the measurement process is complex, and labor and time are wasted. The dielectric rule is based on the principle of a soil moisture sensor, for example, the HQTSSV24OC soil temperature and humidity sensor is used in the analysis and control of the operation parameters of edible fungus culture medium bagging equipment, and is a measurement mode based on the dielectric method. However, because the components of the materials in the fungus stick culture medium are complex, the mixing proportion of the materials is not fixed, the dielectric method is greatly influenced by volume weight, pressure and culture material components, the error in the measurement process is large, and the method is not suitable for measuring the moisture content of complex mixtures.
Therefore, it is desirable to provide a method for measuring the water content of a stick of bacteria in real time with high accuracy.
Disclosure of Invention
The embodiment of the invention provides a method and a system for measuring the water content of a fungus stick, which are used for solving the technical problems that the process for measuring the water content of the fungus stick in the prior art is complicated and the water content of the fungus stick cannot be accurately measured in real time.
In a first aspect, an embodiment of the present invention provides a method for measuring a water content of a bacteria stick, including the steps of:
acquiring the initial weight and the initial water content of the fungus stick in different periods, and acquiring the real-time weight of the fungus stick from a wireless weighing device for placing the fungus stick according to a preset time interval;
and determining the water content of the fungus sticks in different periods according to the initial weight, the initial water content and the real-time weight of the fungus sticks.
The water contents of the fungus sticks in different periods comprise the water content of the fungus stick before the first mushroom picking, the water content of the fungus stick immediately after the jth mushroom picking and the water content of the fungus stick in the interval period of two adjacent water injections; correspondingly, the water content of the fungus stick before the first mushroom picking is determined based on the initial weight of the fungus stick on the culture rack, the initial water content of the fungus stick on the culture rack and the real-time weight of the fungus stick before the first mushroom picking;
the water content of the fungus stick immediately after the jth mushroom picking is determined based on the initial weight of the fungus stick after the last water injection before the jth mushroom picking, the initial water content of the fungus stick after the last water injection before the jth mushroom picking, the real-time weight of the fungus stick at the last moment before the jth mushroom picking and the real-time weight of the fungus stick at the first moment after the jth mushroom picking;
the water content of the fungus stick in the adjacent two water injection intervals is determined based on the initial weight of the fungus stick after the previous water injection, the initial water content of the fungus stick after the previous water injection and the real-time weight of the fungus stick in the adjacent two water injection intervals.
Wherein, fungus stick water content before first adopting the mushroom is based on initial weight when cultivateing the frame on the fungus stick, initial water content when cultivateing the frame on the fungus stick and the real-time weight of fungus stick before first adopting the mushroom confirm, specifically include:
acquiring initial weight and initial water content of the mushroom stick on a culture rack, acquiring real-time weight of the mushroom stick before first mushroom picking from a wireless weighing device according to a preset time interval, determining water content of the mushroom stick before first mushroom picking according to the following formula,
wherein, theta 0i The water content of the fungus stick at the i th moment before the first mushroom picking, W 0i The real-time weight of the fungus stick at the ith moment before the first mushroom picking, W 0 Is the initial weight of the mushroom stick on the culture shelf, theta 0 The initial water content of the mushroom sticks during the culture frame is shown, the ith moment is the moment corresponding to the ith real-time weight collection of the mushroom sticks before the first mushroom picking, i is more than or equal to 1 and less than or equal to n, and the real-time weight collection of the mushroom sticks is carried out for n times before the first mushroom picking.
The water content of the fungus stick immediately after the jth mushroom picking is determined based on the initial weight of the fungus stick after the last water injection before the jth mushroom picking, the initial water content of the fungus stick after the last water injection before the jth mushroom picking, the real-time weight of the fungus stick at the last moment before the jth mushroom picking and the real-time weight of the fungus stick at the first moment after the jth mushroom picking, and specifically comprises the following steps:
determining the water content of the fungus stick immediately after the jth mushroom picking according to the following formula,
wherein, theta j1 The water content of the fungus stick immediately after the jth mushroom picking, W j1 The real-time weight of the fungus stick at the first moment after the jth mushroom picking, W (j-1)n The real-time weight of the fungus stick at the last moment before the jth mushroom picking, W j0 The initial weight of the fungus stick is lambda after the last water injection before the jth mushroom picking j0 The initial water content of the fungus stick after the last water injection before the jth mushroom picking is obtained.
And the time interval between the first moment after the jth mushroom picking and the last moment before the jth mushroom picking is not more than 5 min.
Wherein, fungus stick water content in the interval of two adjacent water injection specifically includes based on fungus stick initial weight after the water injection of previous time, the fungus stick initial water content after the water injection of previous time and the real-time weight of fungus stick in the interval of two adjacent water injection:
acquiring the initial weight and the initial water content of the fungus stick after the previous water injection, acquiring the real-time weight of the fungus stick in the adjacent two water injection intervals from the wireless weighing device according to a preset time interval, determining the water content of the fungus stick in the adjacent two water injection intervals according to the following formula,
wherein z is more than or equal to 1 and theta zq The water content of the fungus stick from the z time to the q time in the interval period from the z +1 time of water injection, W zq The real-time weight W of the bacteria stick from the z-th water injection to the q-th time in the z +1 th water injection interval z And theta z The initial weight and the initial water content of the fungus stick after the water injection for the z time are respectively.
Wherein, acquire fungus stick initial weight and the initial water content of fungus stick after the water injection, specifically include:
after water is injected into the bacteria sticks, the weight of the bacteria sticks is obtained at intervals of delta t, and the obtained real-time weight of the bacteria sticks is used as the initial weight of the bacteria sticks after water is injected until the difference between the obtained real-time weight of the bacteria sticks and the obtained real-time weight of the bacteria sticks at the last time is smaller than a preset value;
acquiring the real-time weight of the fungus stick at the last moment before water injection and the water content of the fungus stick at the last moment before water injection;
determining the initial water content of the bacteria stick after the water injection according to the initial weight of the bacteria stick after the water injection, the real-time weight of the bacteria stick at the last moment before the water injection and the water content of the bacteria stick at the last moment before the water injection,
wherein, theta z The initial water content of the fungus stick after the Z-th water injection, W z The initial weight of the bacteria stick after the water injection of the z-th time, W z’ And theta z’ Respectively the real-time weight of the fungus stick and the water content of the fungus stick at the last moment before the z-th water injection.
In a second aspect, an embodiment of the present invention provides a system for measuring moisture content in a bacteria stick, including a wireless base station and a plurality of wireless weighing devices;
the wireless weighing device comprises a base and a supporting plate fixedly connected with the base and used for supporting the bacteria sticks, wherein a weighing sensor is mounted on the supporting plate, and the weighing sensor is connected with a collector;
the collector comprises an A/D module and a wireless communication module, and the weighing sensor and the wireless communication module are respectively and electrically connected with the A/D module;
the wireless base station obtains real-time weights of the fungus sticks measured by the wireless weighing devices through the wireless communication module, and the water content of each fungus stick in different periods is determined by the fungus stick water content measuring method of the first aspect.
Wherein, be equipped with a pair of forked type support on the layer board, the fungus stick is arranged in on the forked type support.
The system for measuring the water content of the fungus sticks further comprises a human-computer interaction module, wherein the human-computer interaction module is in communication connection with the collector and the wireless base station and is used for setting a time interval for collecting real-time weight data of the fungus sticks and setting an in-network unique label and a communication channel of the collector and the wireless base station during networking.
According to the method for measuring the water content of the fungus stick, provided by the embodiment of the invention, the weight of the fungus stick is measured through the wireless weighing device, the real-time weight of the fungus stick is obtained from the wireless weighing device according to the preset time interval, and the water content of the fungus stick in different periods can be determined in real time according to the real-time weight, the initial weight and the initial water content of the fungus stick in different periods. Compare in traditional stoving method, the measurement process is simple, can acquire fungus stick water content in real time, and corresponding fast compares in the dielectric method, does not receive the influence of the constitution of cultivateing the material in the fungus stick, and measurement accuracy is high, provides effectual technical support for the accurate moisturizing of fungus stick after adopting the mushroom.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a flow chart of a method for measuring water content of a stick of bacteria according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a system for measuring moisture content of a stick of bacteria according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a wireless weighing apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the operation of a collector according to an embodiment of the present invention;
fig. 5 is a schematic diagram of the operation of a wireless base station according to an embodiment of the present invention.
In the figure: 1. a wireless base station; 2. a wireless weighing device; 3. a culture shelf; 4. a mushroom stick; 5. a remote server; 21. a base; 22. a support plate; 23. a weighing sensor; 24. a collector; 25. a level gauge.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "first" and "second" are used for the sake of clarity and are not intended to represent any substantial differences, unless otherwise explicitly specified or limited. The directions of "up", "down", "left" and "right" are all based on the directions shown in the attached drawings. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
Fig. 1 is a flow chart of a method for measuring moisture content of a mushroom stick according to an embodiment of the present invention. The method for measuring the water content of the fungus stick comprises the following steps:
and S100, acquiring the initial weight and the initial water content of the fungus stick in different periods, and acquiring the real-time weight of the fungus stick from a wireless weighing device for placing the fungus stick according to a preset time interval.
Specifically, install wireless weighing device on the culture rack, the fungus stick is placed on wireless weighing device, can follow the weight of directly reading the fungus stick on the wireless weighing device. The fungus stick is put and is cultivateed on wireless weighing device, the real-time weight of fungus stick through wireless weighing device measurement. According to the embodiment of the invention, the real-time weight data of the bacteria stick collected by the wireless weighing device is obtained according to the preset time interval, for example, the weight data is collected every 5 minutes and is used as the real-time weight of the bacteria stick, and the real-time weight data is recorded and is used as the data base for calculating the water content of the bacteria stick subsequently. Of course, the preset time interval can be customized according to actual production requirements. Wherein, wireless weighing device can be a plurality of, all places a fungus stick on every wireless weighing device.
And S200, determining the water contents of the fungus sticks in different periods according to the initial weight, the initial water content and the real-time weight of the fungus sticks.
The wet mushrooms are generally harvested 4-5 times in the edible fungus stick culture period, and the wet mushrooms are harvested next time after each mushroom harvest. The growth period of each time of the wet mushrooms is divided into a hypha culture period and a fruiting period, and the water loss of the fungus sticks in the hypha culture period is caused by the evaporation of the water of the fungus sticks; the real-time weight of the mushroom stick in the fruiting period comprises the weight of mushroom fruiting bodies, and the water loss of the mushroom stick is caused by water evaporation of the mushroom stick and transpiration of the mushroom fruiting bodies.
In the fungus stick culture period, can carry out water injection many times to the fungus stick, and because fungus stick water content can sharply descend after every mushroom picking, consequently can water injection to the fungus stick immediately after every mushroom picking, then judge according to the actual water content of fungus stick and whether need give fungus stick water injection afterwards. According to the embodiment of the invention, the weight and the water content of the water-injected mushroom stick are used as the initial weight and the initial water content of the mushroom stick in different periods, and then the water content of the mushroom stick in different periods is determined according to the initial weight and the initial water content of the mushroom stick and the real-time weight of the mushroom stick collected by the wireless weighing device.
The method for measuring the water content of the bacteria stick measures the weight of the bacteria stick through the wireless weighing device, obtains the real-time weight of the bacteria stick from the wireless weighing device according to the preset time interval, and can determine the water content of the bacteria stick in different periods in real time according to the real-time weight, the initial weight and the initial water content of the bacteria stick in different periods. Compare in traditional stoving method, the measurement process is simple, can acquire fungus stick water content in real time, and response speed is fast, compares in the dielectric method, does not receive the influence of the constitution of cultivateing the material in the fungus stick, and measurement accuracy is high, provides effectual technical support for the accurate moisturizing of fungus stick after adopting the mushroom.
The water content of the fungus sticks in different periods comprises the water content of the fungus sticks before the first mushroom picking, the water content of the fungus sticks immediately after the jth mushroom picking and the water content of the fungus sticks in the adjacent two water injection intervals.
Correspondingly, the water content of the fungus stick before the first mushroom picking is determined based on the initial weight of the fungus stick on the culture rack, the initial water content of the fungus stick on the culture rack and the real-time weight of the fungus stick before the first mushroom picking, the water content of the fungus stick immediately after the jth mushroom picking is determined based on the initial weight of the fungus stick after the last water injection before the jth mushroom picking, the initial water content of the fungus stick after the last water injection before the jth mushroom picking, the real-time weight of the fungus stick at the last moment before the jth mushroom picking and the real-time weight of the fungus stick at the first moment after the jth mushroom picking, and the water content of the fungus stick in the adjacent two water injection intervals is determined based on the initial weight of the fungus stick after the previous water injection, the initial water content of the fungus stick after the previous water injection and the real-time weight of the fungus stick in the adjacent two water injection intervals.
In the embodiment, the culture period of the fungus stick is divided into three different periods, namely the state of the fungus stick before the first mushroom picking, the state of the fungus stick immediately after the jth mushroom picking and the state of the fungus stick in the interval period of two adjacent water injections according to whether water injection and mushroom picking are performed or not. The water content of the fungus stick in each period is determined according to the state of the fungus stick in the corresponding period.
The real-time weight of the fungus stick before the first mushroom picking refers to the real-time weight of the fungus stick acquired in each time from the time when the fungus stick is placed on a culture shelf to the time when the fungus stick is picked for the first time, and the real-time weight of the fungus stick acquired in each time corresponds to one moment in the time interval; the water content of the fungus stick immediately after the jth mushroom picking refers to the water content of the fungus stick before water is injected after the jth mushroom picking; the real-time weight of the fungus stick at the first moment after the jth mushroom picking refers to the weight of the fungus stick when water is not injected after the mushroom picking; the real-time weight of the fungus stick at the last moment before the jth mushroom picking refers to the weight of the fungus stick obtained by the last collection in the real-time weights of the fungus sticks collected for multiple times before the jth mushroom picking.
Specifically, the fungus stick water content before first time mushroom picking specifically includes based on initial weight when cultivateing the frame on the fungus stick, the initial water content when cultivateing the frame on the fungus stick and the real-time weight of fungus stick before first time mushroom picking:
acquiring initial weight and initial water content of the fungus stick on a culture rack, acquiring real-time weight of the fungus stick before first mushroom picking from a wireless weighing device according to a preset time interval,
the water content of the fungus stick before the first mushroom picking is determined according to the following formula:
wherein, theta 0i The water content of the fungus stick at the i th moment before the first mushroom picking, W 0i The real-time weight of the fungus stick at the ith moment before the first mushroom picking, W 0 Is the initial weight of the mushroom stick on the culture shelf, theta 0 The initial water content of the mushroom sticks during the culture frame is shown, the ith moment is the moment corresponding to the ith real-time weight collection of the mushroom sticks before the first mushroom picking, i is more than or equal to 1 and less than or equal to n, and the real-time weight collection of the mushroom sticks is carried out for n times before the first mushroom picking.
Wherein, utilize traditional stoving method to measure initial weight and initial water content when cultivateing the frame on the fungus stick. The specific method comprises the steps of selecting a bacteria stick sample, measuring the wet weight of the sample, drying the sample, measuring the dry weight of the sample, obtaining the weight reduced after the sample is dried, and obtaining the initial water content of the sample according to the ratio of the weight reduced after the sample is dried to the wet weight of the sample. The initial water content of a plurality of samples can be measured simultaneously to the accessible, with the initial water content when the average value of the initial water content of a plurality of samples is as the fungus stick on cultivateing the frame, with the fungus stick on cultivate the frame when measuring the weight as the fungus stick on cultivate the initial weight when putting up.
In the whole culture period of the fungus stick, water does not need to be injected into the fungus stick from the upper culture shelf to the first time before mushroom picking, and after the first mushroom picking, whether the water is injected into the fungus stick is determined according to the real-time water content of the fungus stick. And the water content of the fungus stick is sharply reduced after each mushroom picking, so that water is injected immediately after each mushroom picking. During the period from the completion of mushroom picking to water injection, the water evaporation capacity of the mushroom stick is negligible. Therefore, the state of the fungus stick after the first mushroom picking can be divided into the state of the fungus stick immediately after each mushroom picking and the state of the fungus stick in the interval period of every two adjacent water injections.
The water content of the fungus stick immediately after the jth mushroom picking is determined based on the initial weight of the fungus stick after the last water injection before the jth mushroom picking, the initial water content of the fungus stick after the last water injection before the jth mushroom picking, the real-time weight of the fungus stick at the last moment before the jth mushroom picking and the real-time weight of the fungus stick at the first moment after the jth mushroom picking, and the method specifically comprises the following steps of:
determining the water content of the fungus stick immediately after the jth mushroom picking according to the following formula:
wherein, theta j1 The water content of the fungus stick immediately after the jth mushroom picking, W j1 The real-time weight of the fungus stick at the first moment after the jth mushroom picking, W (j-1)n The real-time weight of the fungus stick at the last moment before the jth mushroom picking, W j0 The initial weight theta of the fungus stick after the last water injection before the jth mushroom picking j0 The initial water content of the fungus stick after the last water injection before the jth mushroom picking is obtained. J is more than or equal to 1 and less than or equal to m, and m is the total mushroom picking times in the culture period.
When j is 1, W (j-1)n Represents the real-time weight W of the fungus stick collected in the nth time before the first mushroom collection j0 Is the initial weight theta of the mushroom stick on the culture shelf before the first mushroom picking j0 Is the initial water content when the fungus stick is put on the culture shelf before the first mushroom picking. That is, at this time, W j0 ＝W 0 ，θ j0 ＝θ 0 ，W (j-1)n ＝W 0n 。
And taking the moment when the fungus sticks are placed on the culture rack as zero water injection, wherein the water injection immediately after the first mushroom picking is the first water injection. Multiple water injection operations can be performed between two adjacent mushroom pickups, and the water content of the mushroom stick immediately after the second or later mushroom picking is determined based on the initial weight and the initial water content of the mushroom stick after the last water injection before the second or later mushroom picking, the real-time weight of the mushroom stick at the last moment before the second or later mushroom picking, and the real-time weight of the mushroom stick at the first moment after the second or later mushroom picking.
In the embodiment of the invention, in order to ensure the accuracy of the water content measurement of the fungus stick immediately after the jth mushroom picking, the time interval between the first time after the jth mushroom picking and the last time before the jth mushroom picking is not more than 5 min. To avoid that during this time evaporation of moisture has an impact on the calculation accuracy.
During the whole culture period of the fungus stick, the fungus stick is injected with water for many times. The fungus stick water content in two adjacent water injection intervals is based on fungus stick initial weight after the water injection of previous time, the fungus stick initial water content after the water injection of previous time and the real-time weight of fungus stick in two adjacent water injection intervals confirm, specifically include:
the method comprises the following steps of obtaining initial weight of a bacterium rod after previous water injection and initial water content of the bacterium rod after previous water injection, obtaining real-time weight of the bacterium rod in adjacent water injection intervals from a wireless weighing device according to a preset time interval, and determining the water content of the bacterium rod in the adjacent water injection intervals according to the following formula:
wherein z is a natural number of not less than 1 and theta zq The water content of the fungus stick from the z time to the q time in the interval period from the z +1 time of water injection, W zq Real-time weight of bacteria stick from water injection of z to water injection of q +1 z And theta z The initial weight and the initial water content of the fungus stick after the water injection for the z time are respectively.
If no mushroom picking operation is carried out from the interval period from the water injection of the z th time to the water injection of the z +1 th time, directly determining the water content of the fungus stick in the interval period between the water injection of the two adjacent times by adopting a formula (3); if mushroom picking operation exists in the interval period from the z-th water injection to the z + 1-th water injection, the z + 1-th water injection is always immediately followed by the mushroom picking operation, the interval period from the z-th water injection to the z + 1-th water injection is divided into the interval period from the z-th water injection to the mushroom picking and the interval period from the mushroom picking, then the water content of the fungus stick after the z-th water injection to the mushroom picking is determined according to a formula (3), and the water content of the fungus stick immediately after the mushroom picking is determined according to a formula (2).
It should be noted that, after the water injection to the fungus stick, the fungus stick has a process that absorbs water gradually, accomplishes to absorbing water stable period at fungus stick water injection, need not to measure the real-time water content of fungus stick, only need gather fungus stick weight in real time can. Namely, only the real-time water content of the fungus stick from the time when the fungus stick is injected with water and absorbs water stably to the time when water is injected next time is needed. And taking the weight of the fungus stick after stable water absorption as the initial weight of the fungus stick after water injection, and taking the water content of the fungus stick after stable water absorption as the initial water content of the fungus stick after water injection.
Obtain the initial weight of fungus stick and the initial water content of fungus stick after the water injection, specifically include:
after water is injected into the bacteria sticks, the weight of the bacteria sticks is obtained at intervals of delta t, and the obtained real-time weight of the bacteria sticks is used as the initial weight of the bacteria sticks after water is injected until the difference between the obtained real-time weight of the bacteria sticks and the obtained real-time weight of the bacteria sticks at the last time is smaller than a preset value;
acquiring the real-time weight of the fungus stick at the last moment before water injection and the water content of the fungus stick at the last moment before water injection;
determining the initial water content of the bacteria stick after the water injection according to the initial weight of the bacteria stick after the water injection, the real-time weight of the bacteria stick at the last moment before the water injection and the water content of the bacteria stick at the last moment before the water injection,
wherein, theta z The initial water content of the fungus stick after the Z-th water injection, W z The initial weight of the bacteria stick after the water injection of the z-th time, W z’ And theta z’ Respectively the real-time weight of the fungus stick and the water content of the fungus stick at the last moment before the z-th water injection. Net water injection weight W of mushroom stick Clean water injection ＝W z -W z′ Namely the difference between the real-time weight of the bacteria stick after water injection and stable water absorption and the real-time weight of the bacteria stick collected last time before water injection.
The initial water content of the fungus stick after the first water injection operation or each water injection operation after the fungus stick is determined according to a formula (4), wherein if the water injection operation is immediately followed by mushroom picking, theta is determined according to a formula (2) z’ If the water injection operation is not immediately followed by mushroom picking, determining theta according to a formula (3) z’ 。
An embodiment of the present invention further provides a system for measuring moisture content in a mushroom stick, and fig. 2 is a schematic structural diagram of the system for measuring moisture content in a mushroom stick according to the embodiment of the present invention. The water content measuring system of the fungus stick comprises a wireless base station 1 and a plurality of wireless weighing devices 2. Wherein, a plurality of wireless weighing device 2 are placed on cultivateing frame 3, place a fungus stick 4 on every wireless weighing device 2, and the whole cultivation period of fungus stick 4 all is on wireless weighing device 2.
As shown in fig. 3, which is a schematic structural diagram of a wireless weighing device according to an embodiment of the present invention, the wireless weighing device 2 includes a base 21 and a supporting plate 22 fixedly connected to the base 21 and used for supporting the fungus stick 4, a weighing sensor 23 is installed on the supporting plate 22, and the weighing sensor 23 is connected to a collector 24. Wherein, collector 24 includes AD module and wireless communication module, and weighing sensor 23 and wireless communication module are connected with the AD module electricity respectively.
Specifically, as shown in fig. 4, which is a working schematic diagram of the collector according to the embodiment of the present invention, after the microcontroller in the collector 24 converts the analog signal of the weighing sensor 23 into a digital signal through the a/D module at preset time intervals, the microcontroller transmits the real-time weight data of the fungus stick to the wireless base station 1 through the wireless communication module. Wherein, collector 24 is powered by a low power consumption rechargeable lithium battery.
In the embodiment of the invention, four height-adjustable foot cups are arranged below the base 21 of the wireless weighing device 2, and the wireless weighing device 2 is also provided with a level gauge 25 for ensuring that the base 21 of the wireless weighing device 2 is in a horizontal state during installation, and if the wireless weighing device is inclined, the height of the four foot cups is adjusted to restore the horizontal state.
In the embodiment of the invention, a pair of fork-shaped brackets is arranged on the supporting plate 22 of the wireless weighing device 2, and the fungus sticks are placed on the fork-shaped brackets. Wherein, layer board 22 can be the bellied cambered surface structure that makes progress to the water that overflows after avoiding the fungus stick water injection is gathered on layer board 22, makes measured data inaccurate. Wherein, layer board 22 adopts stainless steel, and base 21 adopts aluminum alloy.
The wireless base station 1 obtains the real-time weights of the fungus sticks 4 measured by the wireless weighing devices 2 through the wireless communication module, and determines the water content of each fungus stick 4 in different periods by adopting the fungus stick water content measuring method in the embodiment.
The system for measuring the water content of the fungus stick further comprises a remote server 5, and a wireless remote communication module is installed in the wireless base station 1. As shown in fig. 5, which is a working schematic diagram of a wireless base station according to an embodiment of the present invention, a microcontroller of the wireless base station 1 receives a wireless signal, that is, real-time weight data of the fungus stick 4, sent by a collector 24 through a wireless communication module, calculates the water content of each fungus stick 4 at different periods according to the fungus stick water content measuring method described in the above embodiment, and then transmits the calculated water content information of the fungus stick to a remote server 5 through a wireless remote communication module. The remote server 5 is also provided with a display, and the information of the water content monitored in real time can be displayed on the display.
The system for measuring the water content of the fungus stick provided by the embodiment of the invention can facilitate a user to remotely check the water shortage information of the fungus stick, greatly reduce the workload of the traditional field, provide a technical basis for realizing automatic water injection of the fungus stick in the next step, save the labor cost, improve the detection working efficiency and comprehensively improve the benefit.
In the embodiment of the invention, the wireless base station 1 is installed in a mushroom house, and the wireless communication modules in the collector 24 and the wireless base station 1 both adopt wireless short-range Lora communication modules, so that the wireless short-range communication between the collector 24 and the wireless base station 1 is realized. Wherein, can install many wireless base station 1 simultaneously, set up 255 collectors 24 under every wireless base station 1, namely every wireless base station 1 and 255 collectors 24 wireless communication connection. The wireless base station 1 is also provided with a display screen such as an LCD screen, and the water content information of each bacteria stick obtained by calculation can be displayed on the display screen, so that the water content information of the bacteria sticks can be conveniently checked on the spot of a mushroom house.
The system for measuring the water content of the fungus sticks provided by the embodiment of the invention further comprises a man-machine interaction module, wherein the man-machine interaction module is in communication connection with the collector 24 and the wireless base station 1 and is used for setting the time interval of real-time weight data of the fungus sticks collected in real time and setting unique labels and communication channels in the networks of the collector 24 and the wireless base station 1 during networking. Wherein, the numerical range of the unique label is 1-255, and the communication channel is divided into 1-7. The frequency channels of the Lora communication module in each wireless base station 1 and the corresponding Lora communication module of the collector 24 are set to be consistent.
The human-computer interaction module is also used for setting coefficients when the equipment is calibrated. Before the system for measuring the water content of the bacteria stick in the embodiment of the invention is used, the bacteria stick needs to be calibrated. Specifically, after the wireless weighing device 2 and the wireless base station 1 are installed, the power is turned on, the microcontroller reads time parameters from the memory, the wireless communication module, the A/D module and the man-machine interaction module are initialized, the collector 24 collects the weight measured by the weighing sensor 23 and reads data D through the A/D module, meanwhile, the weight is defaulted to be a zero point, and then the weight of the standard weight is sequentially increased by the amplitude of 500 g. For example, when a wireless weighing device is calibrated, the data read is as follows:
| serial number | Actual weight W (g) | A/D reading value D |
| 1 | 0 | 870 |
| 2 | 500 | 2478 |
| 3 | 1000 | 4004 |
| 4 | 1500 | 5709 |
| 5 | 2000 | 7271 |
| 6 | 2500 | 8853 |
| 7 | 3000 | 10457 |
| 8 | 3500 | 12011 |
| 9 | 4000 | 13676 |
Fitting a relation between the data D and the weight W: w is 3.20D +867.24 and the variance R is 0.99. After the wireless weighing device 1 finishes calibration, the system can be started to measure.
According to the system for measuring the water content of the fungus sticks, the real-time weight data of the fungus sticks are sent to the base station by using the wireless weighing device, information collection is automatically completed, and then the real-time water content information of each fungus stick is obtained through calculation according to the method for measuring the water content of the fungus sticks in the embodiment. The multi-channel real-time monitoring of the water content of the fungus stick is realized, and compared with a hand feeling mode, the measuring precision of the water content of the fungus stick is improved; compared with the traditional sampling and drying method, the automatic detection system for the moisture content of the fungus sticks is constructed, the online monitoring of the fungus sticks of the group under the mushroom house environment is realized, the corresponding speed is high, the moisture content of the fungus sticks under the bag cultivation mode can be monitored online, and the basis is provided for the water use decision of a user.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for measuring the water content of a fungus stick is characterized by comprising the following steps:
acquiring the initial weight and the initial water content of the fungus stick in different periods, and acquiring the real-time weight of the fungus stick from a wireless weighing device for placing the fungus stick according to a preset time interval;
determining the water content of the fungus sticks in different periods according to the initial weight, the initial water content and the real-time weight of the fungus sticks;
the water contents of the fungus sticks in different periods comprise the water content of the fungus stick before the first mushroom picking, the water content of the fungus stick immediately after the jth mushroom picking and the water content of the fungus stick in the interval period of two adjacent water injections; in a corresponding manner, the first and second optical fibers are,
the water content of the fungus stick immediately after the jth mushroom picking is determined based on the initial weight of the fungus stick after the last water injection before the jth mushroom picking, the initial water content of the fungus stick after the last water injection before the jth mushroom picking, the real-time weight of the fungus stick at the last moment before the jth mushroom picking and the real-time weight of the fungus stick at the first moment after the jth mushroom picking; wherein, at least one water injection operation is performed between two adjacent mushroom pickups;
under the condition that no mushroom is picked in the two adjacent water injection periods, the water content of the fungus stick in the two adjacent water injection periods is determined based on the initial weight of the fungus stick after the previous water injection, the initial water content of the fungus stick after the previous water injection and the real-time weight of the fungus stick in the two adjacent water injection periods;
under the condition that the jth mushroom picking is carried out in the interval periods of two adjacent water injections, the latter water injection occurs immediately after the jth mushroom picking, and the water content of the fungus stick in the interval periods of two adjacent water injections comprises the water content of the fungus stick before the jth mushroom picking from the former water injection and the water content of the fungus stick immediately after the jth mushroom picking; the water content of the fungus stick before the previous water injection to the jth mushroom picking is determined based on the initial weight of the fungus stick after the previous water injection, the initial water content of the fungus stick after the previous water injection and the real-time weight of the fungus stick in the interval period before the previous water injection to the jth mushroom picking.
2. The method for measuring the water content in a stick according to claim 1,
the water content of the fungus stick before the first mushroom picking is determined based on the initial weight of the fungus stick when the culture rack is arranged, the initial water content of the fungus stick when the culture rack is arranged and the real-time weight of the fungus stick before the first mushroom picking.
3. The method for measuring the water content of the mushroom stick according to claim 2, wherein the water content of the mushroom stick before the first mushroom picking is determined based on the initial weight of the mushroom stick on the culture shelf, the initial water content of the mushroom stick on the culture shelf and the real-time weight of the mushroom stick before the first mushroom picking, and specifically comprises the following steps:
acquiring initial weight and initial water content of the fungus stick on a culture rack, acquiring real-time weight of the fungus stick before first mushroom picking from a wireless weighing device at preset time intervals, determining water content of the fungus stick before first mushroom picking according to the following formula,
wherein, theta 0i The water content of the fungus stick at the i th moment before the first mushroom picking, W 0i The real-time weight of the fungus stick at the ith moment before the first mushroom picking, W 0 Is the initial weight of the mushroom stick on the culture shelf, theta 0 The initial water content of the mushroom sticks during the culture on the culture shelf, the ith moment is the moment corresponding to the ith real-time weight collection of the mushroom sticks before the first mushroom picking, i is more than or equal to 1 and less than or equal to n, and the mushroom sticks are carried out for n times before the first mushroom pickingAnd (4) collecting the weight in real time.
4. The method for measuring the water content of the mushroom stick according to claim 1, wherein the water content of the mushroom stick immediately after the jth mushroom picking is determined based on the initial weight of the mushroom stick after the last water injection before the jth mushroom picking, the initial water content of the mushroom stick after the last water injection before the jth mushroom picking, the real-time weight of the mushroom stick at the last moment before the jth mushroom picking, and the real-time weight of the mushroom stick at the first moment after the jth mushroom picking, and specifically comprises the following steps:
determining the water content of the fungus stick immediately after the jth mushroom picking according to the following formula,
wherein, theta j1 The water content of the fungus stick immediately after the jth mushroom picking, W j1 The real-time weight of the fungus stick at the first moment after the jth mushroom picking, W (j-1)n The real-time weight of the fungus stick at the last moment before the jth mushroom picking, W j0 The initial weight theta of the fungus stick after the last water injection before the jth mushroom picking j0 The initial water content of the fungus stick after the last water injection before the jth mushroom picking is obtained.
5. The method for measuring the water content of the mushroom stick according to claim 4, wherein the time interval between the first time after the jth mushroom picking and the last time before the jth mushroom picking is not more than 5 min.
6. The method for measuring the water content of the bacteria stick in the claim 1, wherein the water content of the bacteria stick in the adjacent two water injection intervals is determined based on the initial weight of the bacteria stick after the previous water injection, the initial water content of the bacteria stick after the previous water injection and the real-time weight of the bacteria stick in the adjacent two water injection intervals, and specifically comprises the following steps:
acquiring the initial weight and the initial water content of the fungus stick after the previous water injection, acquiring the real-time weight of the fungus stick in the adjacent two water injection intervals from the wireless weighing device according to a preset time interval, determining the water content of the fungus stick in the adjacent two water injection intervals according to the following formula,
wherein z is more than or equal to 1 and theta zq The water content of the fungus stick from the z time to the q time in the interval period from the z +1 time of water injection, W zq The real-time weight W of the bacteria stick from the z-th water injection to the q-th time in the z +1 th water injection interval z And theta z The initial weight and the initial water content of the fungus stick after the water injection for the z time are respectively.
7. The method for measuring the water content of the mushroom stick according to any one of claims 4 to 6, wherein the obtaining of the initial weight and the initial water content of the mushroom stick after water injection specifically comprises:
after water is injected into the bacteria sticks, the weight of the bacteria sticks is obtained at intervals of delta t, and the obtained real-time weight of the bacteria sticks is used as the initial weight of the bacteria sticks after water is injected until the difference between the obtained real-time weight of the bacteria sticks and the obtained real-time weight of the bacteria sticks at the last time is smaller than a preset value;
acquiring the real-time weight of the fungus stick at the last moment before water injection and the water content of the fungus stick at the last moment before water injection;
determining the initial water content of the bacteria stick after the water injection according to the initial weight of the bacteria stick after the water injection, the real-time weight of the bacteria stick at the last moment before the water injection and the water content of the bacteria stick at the last moment before the water injection,
wherein, theta z The initial water content of the fungus stick after the Z-th water injection, W z The initial weight of the bacteria stick after the water injection of the z-th time, W z’ And theta z’ Respectively the real-time weight of the fungus stick and the water content of the fungus stick at the last moment before the z-th water injection.
8. A system for measuring the water content of a fungus stick is characterized by comprising a wireless base station and a plurality of wireless weighing devices;
the wireless weighing device comprises a base and a supporting plate fixedly connected with the base and used for supporting the bacteria sticks, wherein a weighing sensor is mounted on the supporting plate, and the weighing sensor is connected with a collector;
the collector comprises an A/D module and a wireless communication module, and the weighing sensor and the wireless communication module are respectively and electrically connected with the A/D module;
the wireless base station acquires real-time weights of the fungus sticks measured by the wireless weighing devices through the wireless communication module, and determines the water content of each fungus stick in different periods by adopting the fungus stick water content measuring method of any one of claims 1-7.
9. The system for measuring the water content of a mushroom stick according to claim 8, wherein a pair of fork-shaped brackets are arranged on the supporting plate, and the mushroom stick is placed on the fork-shaped brackets.
10. The system for measuring the water content of the mushroom stick according to claim 9, further comprising a human-computer interaction module, wherein the human-computer interaction module is in communication connection with the collector and the wireless base station, and is used for setting a time interval for collecting real-time weight data of the mushroom stick and setting an intra-network unique label and a communication channel of the collector and the wireless base station during networking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010431605.1A CN111721662B (en) | 2020-05-20 | 2020-05-20 | Method and system for measuring water content of fungus stick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010431605.1A CN111721662B (en) | 2020-05-20 | 2020-05-20 | Method and system for measuring water content of fungus stick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111721662A CN111721662A (en) | 2020-09-29 |
| CN111721662B true CN111721662B (en) | 2022-09-16 |
Family
ID=72564726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010431605.1A Active CN111721662B (en) | 2020-05-20 | 2020-05-20 | Method and system for measuring water content of fungus stick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111721662B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03127912A (en) * | 1989-10-13 | 1991-05-31 | Kanebo Ltd | Siitake mushroom culture system |
| JPH05111326A (en) * | 1991-06-14 | 1993-05-07 | Mori Sangyo Kk | Method for culturing mushroom |
| JP2001238541A (en) * | 2000-02-29 | 2001-09-04 | Takashi Doigawa | Medium for mushroom cultivation bed and method for cultivating mushroom |
| US6367191B1 (en) * | 1999-10-26 | 2002-04-09 | Kabushiki Kaisha Hokken | Method of sawdust-based cultivation of shiitake (Cortinellus shiitake) and a cultivation water tank used for the method |
| CN205961934U (en) * | 2016-08-26 | 2017-02-22 | 贵州瑞泰农业科技有限公司 | Automatic mushroom fungus stick water injection device of moisturizing |
| KR101824652B1 (en) * | 2016-08-10 | 2018-02-02 | 한국과학기술연구원 | Apparatus for calculating weight and water content of plants |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL1850111T3 (en) * | 2006-04-25 | 2015-02-27 | Mettler Toledo Ag | Measuring device for gravimetric moisture determination |
| CN201517986U (en) * | 2009-11-10 | 2010-06-30 | 中国烟草总公司郑州烟草研究院 | Tobacco moisture percentage test glove box |
| CN102937557A (en) * | 2012-10-29 | 2013-02-20 | 江苏大学 | Method and device for measuring moisture content of tray matrix |
| CN104535446B (en) * | 2014-12-24 | 2017-11-10 | 柳州市自动化科学研究所 | One kind spreads out blue or green Measuring Moisture Content of Tea detection method and device |
| CN205920024U (en) * | 2016-06-28 | 2017-02-01 | 北京市农林科学院 | Water content automatic measuring device suitable for plant or soil |
| CN106212047B (en) * | 2016-07-28 | 2017-07-28 | 西安理工大学 | A kind of edible fungus bag automatic water filling device and its automatic water injection method |
| CN205961935U (en) * | 2016-08-26 | 2017-02-22 | 贵州瑞泰农业科技有限公司 | Mushroom fungus stick water injection machine of even water injection |
| CN109709000A (en) * | 2018-12-28 | 2019-05-03 | 河北金力新能源科技股份有限公司 | Diaphragm infiltrates system safety testing device and method |
-
2020
- 2020-05-20 CN CN202010431605.1A patent/CN111721662B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03127912A (en) * | 1989-10-13 | 1991-05-31 | Kanebo Ltd | Siitake mushroom culture system |
| JPH05111326A (en) * | 1991-06-14 | 1993-05-07 | Mori Sangyo Kk | Method for culturing mushroom |
| US6367191B1 (en) * | 1999-10-26 | 2002-04-09 | Kabushiki Kaisha Hokken | Method of sawdust-based cultivation of shiitake (Cortinellus shiitake) and a cultivation water tank used for the method |
| JP2001238541A (en) * | 2000-02-29 | 2001-09-04 | Takashi Doigawa | Medium for mushroom cultivation bed and method for cultivating mushroom |
| KR101824652B1 (en) * | 2016-08-10 | 2018-02-02 | 한국과학기술연구원 | Apparatus for calculating weight and water content of plants |
| CN205961934U (en) * | 2016-08-26 | 2017-02-22 | 贵州瑞泰农业科技有限公司 | Automatic mushroom fungus stick water injection device of moisturizing |
Non-Patent Citations (1)
| Title |
|---|
| ‘香菇135’培养基质中菌丝相对生物量的确定;余昌霞等;《上海农业学报》;20121231;第28卷(第1期);第26-29页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111721662A (en) | 2020-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106780093A (en) | A kind of field irrigation watermeter calculates method and apparatus | |
| EP2021833A1 (en) | Method and system for monitoring growth characteristics | |
| CN102160520A (en) | Crop evapotranspiration model-based intelligent drop irrigation control system and method thereof | |
| CN102565061A (en) | Crop biomass nondestructive testing image acquisition and processing device and testing method | |
| CN102967354B (en) | Detecting device and detecting method for crop biomass | |
| CN113075387A (en) | Detection device and measurement method for soil moisture content instrument | |
| CN202631520U (en) | Wireless intelligent soil moisture content collecting automatic-monitoring device | |
| CN102169008A (en) | Device and method for measuring crop biomass | |
| CN111721662B (en) | Method and system for measuring water content of fungus stick | |
| CN103245625A (en) | Method for nondestructive detection on maturity of fresh flue-cured tobacco leaves | |
| CN102636426A (en) | Handheld biomass measuring device and method | |
| CN114365682A (en) | Facility cultivation soil moisture prediction method and device and electronic equipment | |
| CN112931167B (en) | Plant irrigation decision system and method | |
| CN111398227B (en) | Sunlight-induced chlorophyll fluorescence measurement system suitable for observation of crop in whole growth period | |
| CN109030786A (en) | A kind of farmland irrigation water measuring device and measuring method | |
| CN108871996B (en) | Method for measuring soil mass water content and soil volume weight on site | |
| CN106871962A (en) | A kind of integrated form is detecting device integrated and detection method | |
| CN208705326U (en) | A kind of farmland irrigation water measuring device | |
| CN109239027A (en) | A kind of plant physiology water deficiency diagnosis method and system | |
| CN112444541B (en) | Indoor simulation experiment method combining dynamic in-situ soil detection | |
| CN105572056B (en) | A kind of device and method measuring soil water-containing characteristic | |
| CN211178573U (en) | Height self-adjusting greenhouse crop growth environment monitoring device | |
| CN111460377B (en) | Greenhouse crop canopy saturated water vapor pressure difference calculation method under sunny conditions | |
| CN208159306U (en) | crop planting information collection system | |
| CN207650207U (en) | A kind of plant root soil humidity prospecting apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |