NZ780597A - Detection and Alerting System for Precursors to Spoilage or Spontaneous Combustion and the Method thereof - Google Patents
Detection and Alerting System for Precursors to Spoilage or Spontaneous Combustion and the Method thereofInfo
- Publication number
- NZ780597A NZ780597A NZ780597A NZ78059721A NZ780597A NZ 780597 A NZ780597 A NZ 780597A NZ 780597 A NZ780597 A NZ 780597A NZ 78059721 A NZ78059721 A NZ 78059721A NZ 780597 A NZ780597 A NZ 780597A
- Authority
- NZ
- New Zealand
- Prior art keywords
- temperature
- haystacks
- hay
- module
- probes
- Prior art date
Links
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- 102000014961 Protein Precursors Human genes 0.000 title claims abstract description 9
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- OZAIFHULBGXAKX-UHFFFAOYSA-N precursor Substances N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 title description 5
- 230000002269 spontaneous Effects 0.000 title description 5
- 238000004891 communication Methods 0.000 claims abstract description 47
- 244000052616 bacterial pathogens Species 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims abstract description 3
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- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 13
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- 235000013339 cereals Nutrition 0.000 description 6
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- 229910052760 oxygen Inorganic materials 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
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- 230000004151 fermentation Effects 0.000 description 2
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- 239000004460 silage Substances 0.000 description 2
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- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
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- 239000001569 carbon dioxide Substances 0.000 description 1
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Abstract
detection and alerting system for precursors to spoilage in haystacks caused by aerobic microbe activity. The system includes a plurality of temperature probes, measuring the temperature of the haystacks, at least one local communication system, communicating with the temperature probes about the temperatures of the haystacks. The system further includes an internet connected base communication module communicating with each of the local communication module, providing the temperature information of the haystacks; and alerting if the temperature information includes a first temperature indication such as a rapid increase in temperature. temperatures of the haystacks. The system further includes an internet connected base communication module communicating with each of the local communication module, providing the temperature information of the haystacks; and alerting if the temperature information includes a first temperature indication such as a rapid increase in temperature.
Description
Detection and Alerting System for Precursors to Spoilage or Spontaneous Combustion and
the Method thereof
FIELD OF THE INVENTION
The present invention relates to system and method of ion and alert for
precursors to spoilage and/or spontaneous combustion in haystacks due to aerobic
respiration, deterioration and decomposition.
BACKGROUND TO THE INVENTION
The process of spoilage in silage is an bic process without Oxygen, which
is normally called the fermentation process. For the fermentation process to occur, the
moisture content has to be much higher than in the hay making process.
r, the process of spoilage in hay due to the aerobic processes which
needs Oxygen is well known by those d in the art. The initial stage of this process is
commonly called “curing”. For this aerobic process, the moisture content has to be much
lower than is required for making silage.
One of the determining factors in hay making is the quantity and type of
microbial content in the hay (bacteria, yeast and moulds – commonly called "bugs" in the
hay industry) when it is stored. So long as there is moisture, water soluble carbohydrates
(mainly sugars) and oxygen the microbes will grow in numbers, typically ntially. Tests
have shown that approximately 10 days after a mown crop has been cut down, the
microbial count ly ed as the number of colony forming units per gram “cfu per
gram”) will have grown to a dangerous level, and the hay will have to be very dry (typically
less than 14%) to be baled safely at these microbial count levels. If the hay is left down for a
longer time, then this critical moisture level can be even lower and explains why some hay
at much lower moisture contents (as low as 11%) has been known to spontaneously
combust after it was left down for over 6 weeks before baling.
The es use the sugars for food and generate heat, carbon dioxide and
moisture; hence the “increase” in moisture content measured l days after baling and
referenced to the bales as “sweating”.
Typically, the hay is cut and windrowed and left for several days to dry. The hay
dries rapidly in the first 24 to 36 hours. What appears to happen is the top and sides of the
windrow dry much more than the centre and the bottom of the windrow (depending on
weather and ground conditions). If this hay is baled, t being tedded out (a hay
spreading process), or without ioned ws being flipped over after a few days,
then the moisture tests from windrow samples will often show very variable re
contents from samples just a short distance apart, and it is difficult to get an accurate
average moisture content. Hay that is left in s, lower sections of the field and the
outside double rows of fields, often have much heavier windrows that retain more moisture
than the ws in the remainder of the field. These wetter windrows and wet spots may
lead to a more rapid breeding of the microbes.
When the moisture of a sample is analysed in the laboratory, the result is the
total moisture content of the sample. What these results do not tell you is the distribution
of the moisture within the plant itself (often called stem and dew moisture). Moisture in the
nodes of some plants is much less slowly evaporated off than the re in the stems,
which in turn is slower than the leaves. This is the main reason for using a conditioning or
super conditioning machine, which crushes the stems and nodes and breaks them open to
speed up the evaporation in the plant nodes and stems.
Failed grain cereal crops which have been cut down for hay have been a large
source of spontaneous combustion events, mainly due to moisture contained in the nodes
and immature grain heads curled up in the boot or swollen section near the top of the plant
stem.
Thus even if the stem is dry, moisture and sugars in the nodes and immature
heads can continue to encourage the build-up in the number of microbes. When the
moisture in the nodes reduces to a suitable level the hay is usually termed "cured". If you
are using a hay vative (for example an Oxygen scavenging Sulphur based product), the
hay does not have to be cured to quite the same moisture content as with hay that has not
had preservative applied.
The bulk density of the hay bales also plays a part in the propensity to spoil.
Large rectangular hay bales which are typically pressed to a much higher bulk density than
small rectangular hay bales or round bales are much more susceptible to aerobic spoilage.
The timing for cutting the hay is the same irrespective of using a hay
preservative or not. Typically for legumes this is when there is 5 to 10 percent flower. For
cereal it is at the late clear liquid stage or milk stage depending on the temperature to
maximise grain formation, but not to the extent of getting grain drop during harvest of the
Typically, the hay making process is as follows. After g, conditioning, and
windrowing, the hay is tedded out for 24 to 36 hours (depending on the weather) to evenly
apply the initial rapid drying s to the hay, then w back up again. The tedding is
an extra procedure, but typically the value benefit in doing this is a higher metabolizable
energy (ME), lower neutral detergent fibre (NDF), better leaf retention on the stem in the
bale (i.e. better Relative Feed Value), better colour and better looking and smelling hay. Also
bleaching won’t be an issue in such a short time frame. Ideally hay should be baled within 5
to 7 days from cutting before microbial growth grows to dangerous levels.
Although many countries use the metric measurement system, the size of hay
bales is typically still referred to by their imperial measurements in feet and inches.
Typically, the storage of large rectangular hay bales which has had a preservative
applied is as follows. The hay is stacked in single rows in the shed no higher than 5 bales
high for 4’x3’ and 4 bales high for 4’x4’ and about half a meter apart. After the stacks of
bales have ceased ng temperature (typically at least 3 to 4 weeks), they may be
stacked closer together. In some situations, hay baled with little or no dew moisture and
ed stem re (on dry down) should typically be left out in the field for
approximately one week then follow the above stacking procedure.
Large hay ers typically have many haystacks in hay sheds. These hay
sheds are typically separated by some distance, often measured in Kilometres to minimize
the chances of a haystack fire destroying all of the hay ed.
Measuring the temperature of hay bales in haystacks has been carried out by
hay farmers for decades. Typically, this is done with a pointed temperature probe. Such
temperature probes have been on the market since the mid twentieth century.
Wireless connected ature probes have also been on the market place for
many decades. However, the cost of having individual telemetry links from each hay shed to
an Internet based server is relatively high.
The object of this invention is to provide system and method thereof to address
the above shortcomings or at least to provide a useful alternative.
SUMMARY OF THE INVENTION
In a first aspect the invention comprises a detection and alerting system for
precursors to spoilage in haystacks caused by aerobic microbe activity, comprises a plurality
of temperature , measuring the temperature of the haystacks; at least one local
communication system, communicating with the temperature probes about the
temperatures of the cks; an internet ted base communication module,
wherein communicating with each of the local communication module; providing the
temperature ation of the cks; and ng if the ature information
includes a first temperature indication.
In preference the first temperature indication comprises the temperature of the
hay bale of the haystack; and/or the rate of temperature increase per unit time.
In preference the local ication system comprises a temperature
receiver, ing the temperatures of the haystacks from the temperature probes via
wireless or wired connections; and a local communication module, communicating with the
temperature receiver via wireless or wired connections.
In preference the base communication module ses a collection ule
, collecting the temperature information of each embedded temperature probe
from the relevant local communication module and/or the temperature information of each
surface temperature probe from the relevant base communication module; an alerting submodule
, determining whether the temperature of the hay bale of the haystack exceeds a
first set point and/or the rate of temperature rise per unit time of the hay bale exceeds a
second set point; and a ission sub-module, providing the temperature information of
each ck to internet connected electronic devices via an internet connected server by
SMS or emails or notifications.
In preference the collection sub-module of the base communication module
collects the information about weather conditions, sing air temperature, humidity,
wind speed, wind ion, solar radiation, and tric pressure.
In preference the temperature probes have the configuration of wireless spikes,
wired , wireless flat sensors or wired flat sensors.
In preference the temperature probes are located between the bales of the
haystacks or close to the top surface of the haystacks.
In ence the system further comprises a power supply module, providing
power for the local communication system.
In preference the system further comprises an internet connected applications
for the internet connected electronic devices, displaying the temperature information
and/or the first temperature tion of the temperature information.
In a further form of the invention there is proposed a detection and alerting
method for precursors to spoilage in haystacks, comprising the steps of detecting the
temperature of the haystacks using a plurality of temperature probes; communicating with
the temperature probes about the temperatures of the haystacks and providing haystack
ature information and alerting if the temperature information includes a first
temperature indication.
In preference the method further comprises ing the temperature of the
hay bale of the haystack; and/or the rate of temperature increase per unit time of the hay
bale.
It should be noted that any one of the aspects mentioned above may include
any of the features of any of the other aspects mentioned above and may include any of the
features of any of the embodiments described below as appropriate.
BRIEF DESCRIPTION OF THE DRAWINGS
Preferred features, embodiments and variations of the ion may be
discerned from the following Detailed Description which provides sufficient ation for
those skilled in the art to perform the invention. The Detailed Description is not to be
regarded as limiting the scope of the preceding Summary of the Invention in any way. The
Detailed Description will make reference to a number of drawings as follows.
Figure 1 is a schematic view of the detection and ng system according to an
embodiment of the present invention.
Figure 2 is a schematic close-up view of the base hay shed of the detection and
alerting system according to an embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
The ing detailed description of the invention refers to the accompanying
drawings. er possible, the same reference numbers will be used throughout the
drawings and the following description to refer to the same and like parts. ions of
certain parts shown in the drawings may have been modified and/or exaggerated for the
purposes of clarity or illustration.
Foremost, the basis of the present invention is that the cost of having individual
telemetry links from each hay shed to an Internet based server can be reduced by having
each hay shed wirelessly connected to a base hay shed and that base hay shed connect to
an internet connected .
It is not the intention of this detection and alerting system to convey to
operators what hay temperatures are at ous levels. The temperatures at which the
hay reaches various stages of decomposition due to the aerobic microbial action is highly
likely to vary with, but not d to, crop type, baling conditions, haystack construction
and re content. What it is ined is that the rate of heating per unit time
(typically per hour) is the best indicator, combined with the absolute temperature values.
In some embodiments of the present invention, the detection and alerting
system 10 for precursors to spoilage or spontaneous combustion comprises a base
communication module 32 located on a base hay shed 22 and at least one local
communication modules 30 located on the base hay shed 22. If there are non-base hay
sheds 50, then they will also have at least one local communication module 30 respectively.
Referring to Fig 1, in a preferred embodiment, there are four hay sheds. One of
them on the bottom is the base hay shed 22 whereas the rest are the non-base hay sheds
50. Each hay shed has a local communication module 30.
The base communication module 32 lly has a cellular modem to
communicate data to and from a cellular wireless communication link 40 and on to an
internet server 42. Said base communication module 32 also communicates via a local
wireless communication link 38, typically a wide area network (wan) wireless system known
as LoRaWAN to each local communication module 30 on each hay shed, ing the base
hay shed 22 and three local non-base hay sheds 50.
A local communication system comprises a temperature receiver 28 which
receives the temperatures of the cks 20 from temperature probes 24, 26 via wireless
or wired connections and a local communication module 30 which communicates with the
temperature receiver 28 via wireless or wired connections. The local ication
module 30 receives its power from the power supply module 34 and communicates with the
temperature receiver 28. The ature receiver 28 also receives its power from the
power supply module 34. The local communication module 30 and the temperature receiver
28 can also have their tive power supply unit, the specific form of which should be
limited to the embodiment in Fig. 1.
ature probes 24, 26 are used to measure the temperature of the
haystacks 20. Embedded ature probes 24 which are used to measure the
ature of hay bales are embedded in the haystacks 20. Methods of stacking hay vary,
but commonly use fork lifts with hydraulically operated arms to grab multiple hay bales at a
time. Therefore, in some preferred embodiments, flat temperature probes laid down
between bales may be the preferred sensor locating method.
One or more infrared sensors namely surface temperature probes 26 (sensor
and probe are used interchangeably hereafter for convenience) that may be used to
measure the temperature of the haystacks 20 can be installed in a place close to the top
surface of the cks 20. The top surface temperature of the hay is used as a reference
temperature when an operator sets temperature set points for triggering alerts and/or to
enhance the temperature measurement profile.
Irrespective of using an insertion sensor probe or a sensor probe laid down
between bales, it is preferred that each sensor be ed to a high visibility ribbon so that
when the haystack is dismantled, the location of each temperature sensor is more easily
located.
While the base communication module 32 collects the temperature information
of each embedded temperature probe 24 from the local communication module 30, it
determines if the temperature information includes a first temperature indication. The first
temperature indication comprising the temperature of the hay bale of the haystack and/or
the rate of temperature rise per unit time of the hay bale. If so, then the ion and
alerting system 10 will alert.
Further, the base communication module comprising a collection sub-module,
collecting the ature information of each embedded temperature probe 24 from the
nt local communication module 30 and/or the temperature information of each
surface temperature probe 26 from the base communication module 32. An alerting ule
(not shown in the Figs), determining r the temperature of the hay bale of
the haystack exceeds a first set point and/or the rate of temperature rise per unit time of
the hay bale exceeds a second set point. And a transmission sub-module, providing the
ature information of each haystack 20 to internet connected electronic s via
an internet connected server 42 by SMS or emails or notifications. Said first and second set
point can be set by the operator based on the reference temperature ed by the
surface temperature probes 26 or set by the server 42 automatically.
Referring to the preferred embodiment shown in Fig. 1 and 2, there is only one
surface temperature probes 26 beneath the roof of the base hay shed 22 while many
embedded temperature probes 24 are distributed in the haystacks 20 both in the base hay
shed 22 and the local non-base hay sheds 50. Four ed temperature probes 24 on
the right of the hay sheds 22, 50 are marked in Fig. 1. Each temperature probe 24, 26
communicates with the temperature receiver 28. Communication between the temperature
probes and the temperature receiver 28 may be wired or wireless. Specifically, the
temperature probes 24, 26 to measure the rise in temperature of the hay caused by aerobic
microbial activity may be designed in any number of configurations. Such configurations
may include wireless , wired spikes, wireless flat sensors between bales or wired flat
s between bales.
When the communication between the ature probes 24, 26 and the
temperature receiver 28 is ss, then the operating frequency is required to be low
enough to penetrate through damp hay without attenuating the signal to the extent that
the temperature date cannot be read.
The ss connected temperature probes 24, 26 typically include a battery
power source. To maintain low power consumption and thus provide longevity of battery
supply service the temperature probes 24, 26 operate on a low ent current until
woken up at intervals lly measured in hours to read a temperature value and
communicate said temperature value to the temperature receiver 28. After receiving the
temperature value, the temperature receiver 28 sends it to the local ication
module 30 on which shed the temperature receiver 28 is located. Then the local
communication module can send the temperature value coming from the temperature
receiver 28 to the local communication module 30 at intervals or in real time.
In order to locate the tested haystack 20, each of the temperature probes 24, 26
have their own unique identity. Typically, when each temperature probes 24, 26 is deployed
in the haystack 20 its location is noted in an application located in an internet connected
server 42. Said application may be accessed from an internet connected computer 46 or an
internet connected hone 48 to display the hay temperatures in a graphical way in the
location at which the temperatures were read. The ted computer 46 or the
smartphone 48 is connected to the server 42 via wireless or wired internet connections 44.
Further, the base communication module 30 may further include sensors to
measure environmental parameters and pass the values of the said parameters on through
the local communication system and the base communication module 32 to be stored in the
internet connected server 42. Said parameters may include, but not be limited to air
temperature, humidity, wind speed, wind direction, solar radiation and tric pressure.
The base communication module 32 can also determine if the alerts of the detection and
alerting system 10 should be triggered using these parameters individually or together with
the temperature information of the haystack 20 discussed above.
Temperature set points or set points for other environmental parameters may
be configured by the operator to provide alerts when hay temperatures rise above said set
points. Said alerts may take the form of, but not limited to, Small Messaging Service (SMS),
emails and hone Notifications.
In some other embodiments, the detection and alert system 10 as described
above, may be reduced to include only one base hay shed 22 and one haystack 20 without
compromising the intended application of the system.
The reader will now appreciate the present ion which es system and
method of the detection and alerting system 10.
LIST OF COMPONENTS
The drawings include the following integers.
a ion and alerting system
a haystack
22 a base hay shed
24 an embedded temperature probe
26 a surface red) ature probe
28 a temperature receiver
a local ications module
32 a base communications module
34 a power supply module
36 photovoltaic cells
38 a local wireless communications link
40 a cellular wireless communications link
42 an internet connected server
44 et connections
46 an internet connected computer
48 an internet connected smartphone
50 local non-base hay sheds
Further advantages and improvements may very well be made to the present
invention without deviating from its scope. Although the invention has been shown and
described in what is conceived to be the most cal and preferred embodiment, it is
recognized that departures may be made therefrom within the scope of the invention,
which is not to be limited to the details disclosed herein but is to be accorded the full scope
of the claims so as to embrace any and all equivalent s and apparatus. Any sion
of the prior art throughout the specification should in no way be considered as an admission
that such prior art is widely known or forms part of the common general knowledge in this
field.
In the present specification and claims (if any), the word "comprising" and its
derivatives including "comprises" and "comprise" include each of the stated rs but
does not exclude the inclusion of one or more further integers.
Claims (11)
1. A detection and alerting system for precursors to spoilage in haystacks caused by aerobic microbe activity, comprising: a plurality of temperature probes, measuring the temperature of the cks; at least one local communication , communicating with the temperature probes about the temperatures of the haystacks; an internet connected base communication module, wherein communicating with each of the local communication ; providing the temperature information of the haystacks; and alerting if the temperature information includes a first temperature indication.
2. The system of claim 1, the first temperature indication sing: the temperature of the hay bale of the ck; and/or the rate of temperature increase per unit time.
3. The system of claim 1, the local communication system comprising: a temperature receiver, receiving the temperatures of the haystacks from the temperature probes via wireless or wired connections; and a local ication module, communicating with the temperature receiver via wireless or wired connections.
4. The system of claim 1, the base communication module comprising: a collection sub-module, collecting the temperature information of each embedded temperature probe from the relevant local communication module and/or the temperature ation of each surface ature probe from the relevant base ication module; an alerting sub-module, determining whether the temperature of the hay bale of the haystack exceeds a first set point and/or the rate of temperature rise per unit time of the hay bale exceeds a second set point; a transmission sub-module, providing the temperature information of each haystack to internet ted electronic devices via an internet connected server by SMS or emails or notifications.
5. The system of claim 4, the collection sub-module of the base communication module collects the information about weather conditions, comprising air temperature, humidity, wind speed, wind direction, solar radiation, and barometric re.
6. The system of claim 1, the temperature probes have the configuration of wireless spikes, wired spikes, wireless flat sensors or wired flat sensors.
7. The system of claim 1, the temperature probes are located between the bales of the haystacks or close to the top surface of the haystacks.
8. The system of claim 1, the system further comprising: a power supply module, providing power for the local communication system.
9. The system of claim 1-7, the system r sing: an internet connected ations for the internet connected electronic devices, displaying the temperature information and/or the first temperature indication of the temperature information.
10. A detection and alerting method for precursors to spoilage in haystacks, comprising: detecting the temperature of the haystacks using a plurality of temperature probes; communicating with the temperature probes about the temperatures of the haystacks and providing haystack temperature ation; ng if the temperature ation includes a first temperature indication.
11. The method of claim 9, the first temperature indication comprising: measuring the ature of the hay bale of the haystack; and/or the rate of temperature increase per unit time for a hay bale.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2020904680 | 2020-12-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ780597A true NZ780597A (en) | 2021-09-24 |
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