CN111512968B - Automatic ventilation system and automatic speed regulation and partition method thereof - Google Patents
Automatic ventilation system and automatic speed regulation and partition method thereof Download PDFInfo
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Abstract
The invention provides an automatic ventilation system and an automatic speed regulation and partition method thereof, wherein the automatic ventilation system comprises a plurality of fans, each fan comprises a speed regulation device, and the speed regulation device can controllably regulate the rotating speed of the fan; the environment detector detects an external environment and outputs environment information, the automatic ventilation system can process the environment information and output execution information, and the speed regulating device further controls the speed regulating device to regulate the rotating speed of each fan so as to change the ventilation quantity of the automatic ventilation system.
Description
Technical Field
The invention relates to the field of fan control, in particular to an intelligent ventilation system and an automatic speed regulation and partition method thereof.
Background
In large scale livestock farming, a farmer typically builds a large farm to breed livestock in the farm. During the cultivation process, livestock in the farm produce some harmful gases, including carbon dioxide, ammonia gas and the like, and the waste gas produced by mixing the excrement and food residues produced by the livestock, and the harmful gases and the waste gas can cause certain influence on the growth of the livestock, and even cause diseases and even death of the livestock seriously.
Therefore, ventilation is an indispensable measure in large farms. Generally, a plurality of ventilators are provided in a side wall of a farm, and harmful gas and exhaust gas therein are discharged to the outside of the farm when the ventilators perform a ventilating operation.
In particular, the fans are usually provided as asynchronous motors, which have the disadvantage of a high energy consumption, which is maintained even at reduced rotational speeds. Thus, the control of the ventilator is directly by opening and closing. Generally, the ventilator is provided with a plurality of large ventilators and a plurality of small ventilators, so that a user can control the ventilation amount in the farm by turning on the plurality of large or small ventilators.
The adjusting time is often selected according to seasonal changes, for example, in winter, the livestock breeding has less harmful gas and waste gas and the like and has lower temperature, so that part of the ventilators are turned on or not turned on; in summer, the livestock breeding has more harmful gases, waste gases and the like, the temperature is higher, and the gases are easy to accumulate, so that all the ventilators are started. The ventilation quantity of the farm is controlled through the mode, on one hand, the energy consumption is serious, the energy consumed by opening and closing the ventilator is always larger than that consumed by opening the ventilator all the time, on the other hand, the requirements of the ventilator and the interior of the farm are difficult to adjust in time, in other words, if the concentrations of harmful gases and the like in the interior of several days in the whole summer are larger, the concentrations cannot be adjusted in time.
In addition, large-scale plant area is great, and the ventilation blower distributes widely for holistic operation is comparatively inconvenient with the maintenance.
Disclosure of Invention
A primary advantage of the present invention is to provide an automatic ventilation system and an automatic speed-adjusting and partitioning method thereof, wherein the automatic ventilation system can directly adjust the rotation speeds of different fans according to the concentration of harmful gas in a farm, so that the ventilation volume in the farm can be changed by adjusting the rotation speeds of the fans, and finally, the air in the farm can be ensured to be circulated.
Another advantage of the present invention is to provide an automatic ventilation system and an automatic speed-adjusting and partitioning method thereof, which can ensure air circulation in a farm, suppress the concentration of harmful gases, and create a better living environment for animals to obtain better feed meat return.
Another advantage of the present invention is to provide an automatic ventilation system and an automatic speed-adjusting and partitioning method thereof, wherein the automatic ventilation system can monitor harmful gas in different areas of a farm, and further adjust the rotation speed of the fans in the corresponding areas to change the ventilation volume in the farm, thereby finally ensuring that the air in the farm is circulated and the balance of the gas concentration is ensured.
Another advantage of the present invention is to provide an automatic ventilation system and an automatic speed-adjusting and partitioning method thereof, wherein the automatic ventilation system can control one or more fans, so that the fans can be adjusted in speed in a partition manner to adjust the ventilation volume in a partition-adjusting farm, and finally, the air quality in the farm is ensured.
Another advantage of the present invention is to provide an automatic ventilation system and an automatic speed-adjusting and partitioning method thereof, wherein the automatic ventilation system provides a speed-adjusting device, the speed-adjusting device is controllably connected to the fan, the automatic ventilation system can reduce the rotation speed, and after the rotation speed is reduced, the overall power of the fan is reduced, and finally, the energy consumption can be reduced.
Another advantage of the present invention is to provide an automatic ventilation system and an automatic speed regulation and partition method thereof, wherein the automatic ventilation system can divide the area of the farm according to the area, so that the speed regulation device can regulate different fans by areas, thereby realizing the adjustment of the ventilation volume of the farm by areas.
Another advantage of the present invention is to provide an automatic ventilation system and an automatic speed-regulating and partitioning method thereof, wherein the automatic ventilation system divides the area of the farm according to the cultivation density, so that the speed-regulating device can regulate different fans by areas, thereby realizing the adjustment of the ventilation volume of the farm by areas.
Another advantage of the present invention is to provide an automatic ventilation system and an automatic speed-regulating and partitioning method thereof, wherein the automatic ventilation system divides areas of the farm according to cultivation types, so that the speed-regulating device can regulate different fans by areas, thereby realizing the adjustment of the ventilation volume of the farm by areas.
Additional advantages and features of the invention will be set forth in the detailed description which follows and in part will be apparent from the description, or may be learned by practice of the invention as set forth hereinafter.
In accordance with one aspect of the present invention, the foregoing and other objects and advantages are achieved in an automatic ventilation system, comprising:
the system comprises a plurality of fans, a speed regulating device and a control device, wherein each fan comprises a speed regulating device, and the speed regulating device can controllably regulate the rotating speed of the fan; and
the environment detector detects an external environment and outputs environment information, the automatic ventilation system can process the environment information and output execution information, and the speed regulating device further controls the speed regulating device to regulate the rotating speed of each fan so as to change the ventilation quantity of the automatic ventilation system.
According to one embodiment of the present invention, the automatic ventilation system further comprises a control center communicatively connecting the environment detector and the governor device.
According to one embodiment of the present invention, the control center includes a judging unit and an executing unit, the judging unit is communicatively connected to the executing unit, the judging unit receives and judges the environmental information acquired by the environmental detector and outputs a judgment result, and the executing unit receives the judgment result and outputs an executing result to control the speed adjusting device.
According to one embodiment of the present invention, the control center further includes a monitoring unit and a partition unit, wherein the monitoring unit is communicatively connected to the partition unit, wherein the monitoring unit outputs a monitoring message, the monitoring message includes location information of an external environment, the partition unit receives the monitoring message, and the partition unit processes the monitoring message and outputs a partition message to partition the farm into a plurality of monitoring areas.
According to one embodiment of the invention, the zone unit is communicatively connected with the environment detector and the speed regulating device, wherein the zone information is transmitted to the environment detector, so that the environment detector monitors according to a plurality of monitoring areas, wherein the zone information is transmitted to the speed regulating device, so that the speed regulating devices of the fans in a single monitoring area can be controlled in a linkage manner.
According to one embodiment of the present invention, the partition unit partitions the monitoring area according to an area of the farm.
According to one embodiment of the invention, the partition unit divides the monitoring area according to the cultivation density in the farm.
According to one embodiment of the present invention, the partition unit partitions the monitoring area according to the kind of cultivation in the farm.
According to another aspect of the present invention, there is provided an automatic speed regulating method of an automatic ventilation system, comprising the steps of:
(a) Detecting environmental information in the farm in a unit speed regulation time period;
(b) Transmitting the environmental information to the judging unit of the control center, and judging whether the environmental information in the farm is normal or not; and
(c) And when the environment information is judged to be beyond the normal range and the output of the environment information in the next adjusting time period is waited, transmitting the environment information to the execution unit for executing the corresponding speed adjusting operation.
According to another aspect of the present invention, there is further provided a partitioning method of an automatic ventilation system, comprising the steps of:
(a) Acquiring monitoring information of a farm, and transmitting the monitoring information to the partition unit;
(b) The partition unit processes the monitoring information and outputs partition information; and
(c) The partition information is transmitted to the environment monitor, the environment monitor executes partition monitoring operation, the partition information is transmitted to the plurality of speed adjusting devices, and the speed adjusting devices of all the fans in the monitoring area are adjusted in a linkage mode.
Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the claims.
Drawings
Fig. 1 is a view illustrating an application scenario of an automatic ventilation system according to a first embodiment of the present invention.
Fig. 2 is a schematic flow chart of the automatic ventilation system according to the first embodiment of the present invention.
Figure 3 is a diagram of an exemplary application of an automatic ventilation system according to a first embodiment of the present invention.
Fig. 4A-4D are subsequent detection and operational diagrams according to the exemplary application shown in fig. 3.
Fig. 5A-5D are subsequent detection and operational diagrams according to the exemplary application shown in fig. 4C.
Fig. 6 is a system diagram of a control center of an automatic ventilation system according to a second embodiment of the present invention.
FIG. 7 is a schematic flow chart of the partitioning of the automatic ventilation system according to the second embodiment of the present invention.
FIG. 8 is an application of the first embodiment of the automatic ventilation system according to the second embodiment of the present invention
Schematic representation.
FIG. 9 is an application of the second embodiment of the automatic ventilation system according to the second embodiment of the present invention
Schematic representation.
FIG. 10 is a view of a third embodiment of the automatic ventilating system in accordance with the second embodiment of the present invention
Using a schematic diagram.
Detailed Description
The following description is provided to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
As shown in fig. 1, there are provided an automatic ventilation system in a first embodiment, and a farm to which the automatic ventilation system is applied. In the present embodiment, the automatic ventilation system comprises a plurality of fans 10, wherein the fans 10 are disposed on the side walls of the farm, and the fans 10 can keep the concentration of harmful gases in the farm within a normal range all the time by ventilation. Further, the automatic ventilation system further comprises an environment detector 20, wherein the environment detector 20 is used for detecting the concentration of harmful gas in the farm.
It is understood that the environment detector 20 is arranged in the farm, and the higher the concentration of the harmful gas is detected, the larger the ventilation amount is required, and therefore the higher the rotation speed of the fan 10 is required; the lower the detected gas concentration, the less ventilation is required and therefore the lower the speed of the fan 10.
It is worth mentioning that the rotation speed of the fan 10 in the automatic ventilation system can be adjusted, and the energy consumption efficiency of the fan 10 is also reduced when the rotation speed is small. However, the rotation speed of the conventional ventilator 10 cannot be adjusted, and the energy consumption efficiency cannot be changed even if the rotation speed is adjusted, so that the ventilation amount is generally adjusted by turning on or off one or more ventilators 10 to adjust the overall ventilation amount. When the rotation speed of the fan 10 provided by the present invention is adjusted, the overall efficiency of the fan 10 can be adjusted to improve the overall ventilation efficiency.
It should also be noted that the fan 10 of the present invention has a maximum rotational speed at which it consumes the most power. The fan 10 is operated at maximum speed, the supplied air volume is also at maximum and the energy consumption is also at maximum.
The fan 10 in this embodiment also has an initial rotational speed with optimal efficiency, for example, the initial rotational speed is 62% of the maximum rotational speed. Therefore, the initial rotation speed of the fan 10 is 62% of the maximum rotation speed, and for convenience of description, the current rotation speed is illustrated in proportion in the following example. Therefore, the efficiency of the fan 10 is optimized at the initial rotational speed. When the fan 10 reaches the initial rotation speed, the fan 10 achieves the optimal efficiency, that is, the energy saving efficiency is the best. Thus, typically, the fan 10 in the ventilation system is operated at the initial rotational speed.
Specifically, the rotation speed range of each fan 10 is between the predetermined rotation speed and the maximum rotation speed, and further, a speed adjusting device is disposed in the fan 10, and the speed adjusting device 11 controls the rotation speed of the fan 10. The speed regulating device 11 regulates the speed when the environment detector 20 detects that the concentration of the harmful gas in the current environment is abnormal.
In particular, in the prior art, the power consumption of a plurality of the fans is different. The control strategy usually adopted is to start and stop the motor with high power consumption, and to regulate the speed of the motor with low power consumption. For example, in the season with lower temperature, the motor with high power consumption is stopped, and the motor with low power consumption is started.
Under a general ventilation setting, a total ventilation amount is first set according to the concentration of the current harmful gas, and ventilation amounts of a plurality of fans 10 therein are set according to the total ventilation amount, while the ventilation amount of a single fan 10 cannot be adjusted, and only an opening and closing operation is possible, so that the total ventilation amount is adjusted by opening or closing one or more fans 10 therein. It is understood that the opening and closing operations are, on the one hand, energy intensive and, on the other hand, do not guarantee a sufficient ventilation precisely in time.
Unlike the prior art, in the present embodiment, the environment detector 20 of the automatic ventilation system receives an environment information in the farm to transmit the information to the speed regulating device 11, so that the speed regulating device 11 can regulate the rotation speed of the fan 10. The environmental information includes concentrations of various gases in the range of the farm, and the environmental detector 20 mainly detects the concentration of harmful gases in the farm, where the concentration of harmful gases refers to the proportion of harmful gases in all gases, such as carbon dioxide, ammonia, etc., and the normal concentration is 5%, and when the concentration of harmful gases is in the range of 0-5%, the normal range is reached, and when the concentration of harmful gases exceeds 5%, the abnormal condition is reached, and the rotation speed of the fan 10 needs to be increased to increase the ventilation volume of the current farm, so as to further reduce the concentration of the current harmful gases.
As shown in fig. 2, in particular, the automatic ventilation system provides a control center 30, the control center 30 being communicatively connected to the environment detector 20 and each of the governor devices 11. The environment detector 20 detects the environment information of the farm, and further transmits the environment information to the control center 30 for processing, and the control center 30 processes and controls the speed regulating device 11 to execute speed regulation.
More specifically, the control center 30 includes a judging unit 31, and the judging unit 31 receives the environmental information acquired by the environmental detector 20, and obtains a judgment result by comparing the environmental information with the environmental information in a normal state. Further, the control center 30 further includes an executing unit 32, the executing unit 32 receives the determination result and outputs an executing result, and the executing unit 32 is communicatively connected to the speed regulating device 11.
The environment detector 20 provides a detection mechanism that requires monitoring for a predetermined duration of time, not instantaneous monitoring. For example, in the case where the environmental information monitored by the environmental detector 20 is falling and level for the predetermined duration, the automatic ventilation system does not need to adjust the rotation speed of the wind turbine 10, and in the case where the environmental information monitored by the environmental detector 20 is rising, the automatic ventilation system needs to adjust the rotation speed of the wind turbine 10. Therefore, the environment detector 20 is provided with an adjustment time period in which the farm environment is detected.
According to the operation of the control center 30, the determination unit 31 needs to determine the environmental information, it can be understood that the environment detector 20 is turned on to monitor the environmental information in the farm, when the environment detector 20 detects that the concentration of the harmful gas in the environmental information is in a normal range, the speed regulating device 11 of the automatic ventilation system controls the fan 10 to operate at an initial rotation speed, if the fan 10 is not turned on, the fan 10 is started, and if the fan 10 is operating at the initial speed, no adjustment is needed. Since the fan 10 of the automatic ventilation system is at the rotation speed with the best energy consumption efficiency, if the environmental information monitored by the environmental detector 20 in the farm is in the normal range, the automatic ventilation system does not need to be adjusted.
And when the environmental information exceeds the normal range value, the environmental information in the current adjustment time period and the next adjustment time period needs to be judged.
Generally, the environment information is divided into the following different situations:
firstly, waiting for a certain time at the current rotating speed of the fan 10, and if the environment detector 20 detects that the environment information in the farm is still in a rising state, further adjusting the rotating speed of the fan 10 by the automatic ventilation system until the environment information of the farm is in a normal range. It should be noted that in this process, the monitoring time of the environment detector 20 needs to be in a continuous time, because the sudden change of the environment information in a short time is still rare.
Secondly, waiting for a certain time at the current rotating speed of the fan 10, detecting that the environmental information of the farm is maintained in the current state by the environment detector 20, maintaining the current rotating speed of the fan 10 of the automatic ventilation system, and further adjusting the rotating speed of the fan 10 when the environmental information is not reduced to the normal state all the time in a continuous time until the environmental information of the farm is within the normal range.
Thirdly, waiting for a certain time at the current rotating speed of the fan 10, detecting that the environmental information of the farm is reduced to a normal state by the environment detector 20, and adjusting the rotating speed of the fan 10 by the automatic ventilation system without.
For example, if the air volume needs to be reduced by 50% according to the environmental information of the farm detected by the environment detector 20 to balance the energy consumption and the gas concentration, the speed of the fan 10 is adjusted according to the instruction of the control center 30, and the speed of the motor 10 is reduced by 50%. It is worth mentioning that reducing the speed of the motor 10 will have the effect of reducing the energy consumption by 84%. The test data of a specific type of the wind turbine 10 is shown in table 1 below.
| Speed of rotation/rpm | Input power/W |
| 280 | 196.7 |
| 350 | 341.4 |
| 400 | 515.7 |
| 460 | 752.3 |
| 500 | 940.4 |
| 560 | 1250 |
TABLE 1
As shown in fig. 3, the fan 10 of the automatic ventilation system thus has, for example, an optimum efficiency, i.e. a starting speed of 62% of the maximum speed. The normal range of harmful gas concentration in the farm is 0-5%. The automatic ventilation system is provided with an adjustment time period within which harmful gas concentration information of the farm is continuously detected.
In the first adjustment time period (0-1T), the environmental information exceeds the normal range for the first time, and the judgment unit 31 judges the environmental information as 7% harmful concentration information according to the following conditions:
in the first case, as shown in fig. 4A, during the next adjustment period (1-2T), the environmental detector 20 detects that the harmful gas concentration information in the farm continuously rises from 7% to 8%. At this time, the environment detector 20 outputs continuously rising environment information, and the control center 30 processes the environment information and outputs execution information, so that the speed regulating device 11 controls the rotation speed of the fan 10 to perform a large speed regulation, for example, increase the rotation speed from 62% to 80%.
It should be noted that, at this time, the determining unit determines the environment information at this time, outputs a large speed-adjusting determination result, and outputs a large speed-adjusting execution information when transmitting the large speed-adjusting determination result to the executing unit.
As shown in fig. 4B, in the second case, in the next adjustment period (1-2T), the harmful gas concentration information of the farm detected by the environment detector 20 is always maintained at 7%. At this time, the environment detector 20 outputs a high-level maintained environment information, and the control center 30 processes the environment information and then outputs an execution information, so that the speed regulating device 11 controls the rotation speed of the fan 10 to perform a small speed regulation, for example, increase the rotation speed from 62% to 70%.
It should be noted that, at this time, the determining unit determines the environment information at this time, outputs a small speed regulation determining result, and outputs a small speed regulation executing information when transmitting to the executing unit.
In a third case, as shown in fig. 4C, in the next adjustment period (1-2T), the environmental detector 20 detects that the harmful gas concentration information of the farm has dropped from 7% to 6%. At this time, the environment detector 20 outputs environment information of high-order descent, and the control center 30 processes the environment information to output execution information, so that the speed regulating device 11 controls the rotation speed of the fan 10, maintains the current rotation speed, and waits for the environment information in another adjustment time period.
It should be noted that, at this time, the determining unit determines the environment information at this time, outputs a determination result of maintaining the rotation speed, and outputs execution information of maintaining the rotation speed when transmitting the determination result to the executing unit.
In a fourth case, as shown in fig. 4D, during the next adjustment period (1-2T), the environmental detector 20 detects that the harmful gas concentration information of the farm has dropped from 7% to less than 5%. At this time, the environment detector 20 outputs environment information in a normal range, and the control center 30 processes the environment information to output execution information, so that the speed adjusting device 11 does not need to adjust the fan 10 and maintains the current rotation speed.
It should be noted that, in the above four different situations, the speed regulating device 11 can regulate the rotation speed of the fan 10, when the concentration of the harmful gas in the environmental information exceeds the normal range, the ventilation quantity needs to be increased to increase the air circulation quantity at this time, so as to increase the rotation speed of the fan 10, when the rotation speed of the fan 10 is increased, the energy consumption of the fan 10 per unit time is increased, but once the concentration of the harmful gas in the environmental information returns to the normal range, the speed regulating device 11 can control the fan 10 to return to the initial rotation speed at this time; when the rotation speed of the fan 10 is reduced, the overall power of the fan 10 is also reduced, so that the energy consumption of the fan 10 per unit time is reduced.
By combining the above operations, the fan 10 of the automatic ventilation system operates at the initial rotation speed most of the time, when the concentration of the harmful gas in the environmental information exceeds the normal range, the speed of the fan 10 is regulated, and when the concentration of the harmful gas in the environmental information returns to the normal range, the rotation speed of the fan 10 can return to the initial rotation speed. According to the fan 10 of the present embodiment, the fan 10 is optimized when the fan 10 is at the initial rotation speed, so that the overall efficiency of the automatic ventilation system is always maintained in a better state during the above operation.
It should be noted that, at this time, the determining unit determines the environment information at this time, outputs a determination result of maintaining the rotation speed, and outputs execution information of maintaining the rotation speed when transmitting the determination result to the executing unit.
In the subsequent adjustment period (2-3T) of the third case, the harmful gas concentration information from the environment detector 20 to the farm is classified into the following cases:
1. as shown in fig. 5A, in the subsequent adjustment period (2-3T), the environmental detector 20 detects that the harmful gas concentration information of the farm continuously rises from 6% to 8%. At this time, the environment detector 20 outputs continuously rising environment information, and the control center 30 processes the environment information and then outputs execution information, so that the speed regulating device 11 controls the rotation speed of the fan 10 to perform large speed regulation, for example, the rotation speed is increased from 62% to 80% of the initial rotation speed.
2. As shown in fig. 5B, in the subsequent adjustment period (2-3T), the environmental detector 20 detects that the harmful gas concentration information of the farm is maintained at 6%. At this time, the environment detector 20 outputs a high-level maintained environment information, and the control center 30 processes the environment information and then outputs an execution information, so that the speed regulating device 11 controls the rotation speed of the fan 10 to perform a small speed regulation, for example, increase the rotation speed from 62% to 70%.
3. As shown in fig. 5C, in the subsequent adjustment period (2-3T), the environmental detector 20 detects that the harmful gas concentration information of the farm is reduced from 6% to 5.5%. At this time, the environment detector 20 outputs environment information of high-order descent, and the control center 30 processes the environment information to output execution information, so that the speed regulating device 11 controls the rotation speed of the fan 10, maintains the current rotation speed, and waits for the environment information in another adjustment time period.
4. As shown in fig. 5D, in the subsequent adjustment period (2-3T), the environmental detector 20 detects that the harmful gas concentration information of the farm has dropped from 6% to below 5%. At this time, the environment detector 20 outputs environment information in a normal range, and the control center 30 processes the environment information to output execution information, so that the speed adjusting device 11 does not need to adjust the fan 10 and maintains the current rotation speed.
It is understood that when the environment detector 20 detects that the harmful gas concentration information decreases, i.e., the current rotation speed is maintained, and when the environment detector 20 detects that the harmful gas concentration information increases, the two types are adopted, wherein when the environment detector detects that the harmful gas concentration information increases, the speed is adjusted greatly, and when the environment detector detects that the harmful gas concentration information increases, the speed is adjusted slightly.
Normally, a plurality of fans 10 are arranged on the side wall of the farm, the fans 10 are turned on, and the rotation speed at which the fans 10 are at the optimum efficiency at this time is the initial rotation speed. That is, when the fans 10 in the automatic ventilation system are all turned on, all the fans 10 are in the initial rotation speed, and the energy consumption efficiency of the automatic ventilation system is optimal.
According to the above embodiment, there is further provided an automatic speed regulating method of an automatic ventilation system, comprising the steps of:
(a) Detecting environmental information in the farm in a unit speed regulation time period;
(b) Transmitting the environmental information to the judging unit of the control center, and judging whether the environmental information in the farm is normal or not; and
(c) And when the environment information is judged to be beyond the normal range and the output of the environment information in the next adjusting time period is waited, transmitting the environment information to the execution unit for executing the corresponding speed adjusting operation.
In one embodiment, step (c) is performed as step (c 1):
when the environmental information in the next adjustment time period is detected to be that the harmful gas concentration information continues to rise, namely, the environmental information continuing to rise is output, and the environmental information is transmitted to the execution unit, the execution information of large-amplitude up-regulation is output to control the speed regulation device to control the fan to complete large-amplitude up-regulation of the rotating speed.
It should be noted that the execution information of the large-amplitude up-regulation in the present embodiment includes execution information of the large-amplitude up-regulation of the rotation speed of the fan.
In another embodiment, step (c) is performed as step (c 2):
and when the environmental information in the next adjustment time period is detected that the stable position of the harmful gas concentration information is at a high position, outputting small-amplitude up-regulation execution information to control the speed regulating device to control the fan to complete small-amplitude up-regulation of the rotating speed.
It should be noted that the execution information of the small-amplitude up-regulation in this embodiment includes execution information of the small-amplitude up-regulation of the rotation speed of the fan. Whereas a small upregulation is for a large upregulation, e.g., 62% -70% is a small upregulation and 62% -80% is a large upregulation.
In another embodiment, step (c) is performed as step (c 3):
when the environmental information in the next adjustment time period is detected to be decreased in the concentration information of the harmful gas and is still at a high position, waiting information is output, the environmental information in the next adjustment time period is ready to be received, and the current rotating speed of the fan is maintained.
In another embodiment, step (c) is performed as step (c 4):
when the environmental information in the next adjustment time period is detected to reduce the harmful gas concentration information to a normal range, maintaining information is output, and the rotating speed of the fan is not required to be adjusted.
It should be noted that the waiting information in this embodiment refers to maintaining the current rotation speed of the fan and continuing to wait for the environmental information of the next adjustment time period. The maintaining information in this embodiment refers to maintaining the current rotation speed of the fan.
It will be appreciated that after step (c 3), the process returns to step (b) and further steps (c 1) - (c 4) are completed in a loop.
Specifically, the following steps are further included after the step (b):
(b1) The judging unit 31 judges the environment information and environment information in a normal range, and outputs judgment information in the normal range when the environment information is judged to be in the normal range; when the environment is determined to be outside the normal range for the first time, the control center 30 outputs a waiting message to wait for another time period of adjustment of the environment information.
As shown in fig. 6, a second embodiment is further provided, in which the environment detector 20 detects the farm in different areas, so as to adjust the total ventilation in the farm more precisely. The automatic ventilation system comprises an environment detector 20 and a plurality of fans 10, wherein each fan 10 comprises a speed regulating device, and the speed regulating device can regulate the speed of the corresponding fan 10.
Specifically, the automatic ventilation system further includes a control center 30, the control center 30 is communicatively connected to the environment detector 20 and the speed adjusting device 11, the control center 30 includes a monitoring unit 33, a partitioning unit 34, a judging unit 31 and an executing unit 32, wherein the monitoring unit 33 is configured to monitor the farm to obtain monitoring information, and the partitioning unit 34 receives the monitoring information, processes and outputs partitioning information.
It should be noted that the partition information is set for the farm in a partition manner, that is, in the following detection and speed regulation process, the control center 30 performs different area detection and speed regulation on the farm.
As shown in fig. 7, more specifically, the monitoring information is transmitted to the partition unit 34, wherein the partition unit 34 is communicatively connected to the environment probe 20 and the governor device 11, wherein the partition unit 34 outputs the partition information according to the monitoring information, wherein the partition information divides the farm into a plurality of monitoring areas 200. The partition information is transmitted to the environment detector 20, and the environment detector 20 executes the partition information to perform partition detection according to the monitoring area 200 in the following detection process. On the other hand, the partition information is transmitted to the speed control device 11, and the speed control device 11 executes the partition information so that the speed control devices 11 of the fans 10 in the same monitoring area 200 are in a linkage state, that is, the fans 10 in the same monitoring area 200 are in linkage speed control.
Therefore, the monitoring information output by the monitoring unit 33 is transmitted to the partition unit 34, and the partition unit 34 processes the monitoring information and outputs partition information capable of controlling the environment detector 20 and the speed adjusting device 11 to perform detection of harmful gas concentration and change of ventilation volume in different monitoring areas 200.
As shown in fig. 8, the monitoring unit 33 acquires monitoring information on the area of the farm according to the area of the farm, and the partitioning unit 34 partitions the area in the farm to form a plurality of monitoring areas 200A.
For example, the monitoring unit 33 may be implemented as a camera unit, the camera unit takes a picture of the farm and provides a picture of the farm, the camera unit processes the picture to obtain monitoring information, and the camera unit performs area calculation on the farm in the picture, so that the monitoring information includes area information of the farm.
Specifically, the monitoring area 200A is correspondingly provided with a plurality of fans 10, and the plurality of fans 10 in one monitoring area 200A are adjusted in a linkage manner, so when the monitoring area 200A needs to be adjusted in speed, only the fans 10 in the monitoring area 200A are adjusted in speed, and the fans 10 in the rest monitoring areas 200A do not need to be adjusted.
For example, the farm is divided into four monitoring areas 200A according to the monitoring information of the monitoring unit 33 and the partition information of the partition unit 34, and the environment detector 20 monitors the environment information in the single monitoring area 200A. The environment detector 20 is communicatively connected to the governor device 11, and when the environment information in one of the monitoring areas 200A is monitored to be out of a normal range, the control center 30 receives the environment information and processes and outputs an execution message to adjust the rotation speed of the wind turbine 10.
For example, the partition unit 34 partitions the monitoring information, that is, the area information of the farm, and it is understood that the partition unit 34 may partition the area in the monitoring information into equal partitions, for example, into two equally-divided monitoring areas 200A, or equally divide the area in one of the monitoring areas 200A again, so that the monitoring area 200A is continuously divided into two monitoring areas.
When the environment detector 20 detects that the environment information in one of the monitoring areas 200A is in a first adjustment time period (0-1T), the environment information is out of a normal range for the first time, and the judgment unit 31 judges the environment information with harmful concentration information of 7% as follows:
in the first case, during the next adjustment period (1-2T), the environmental detector 20 detects that the harmful gas concentration information in the farm continuously rises from 7% to 8%. At this time, the environment detector 20 outputs continuously rising environment information, and the control center 30 processes the environment information and outputs execution information, so that the speed regulating device 11 controls the rotation speed of the fan 10 to perform a large speed regulation, for example, increase the rotation speed from 62% to 80%.
In the second case, in the next adjustment period (1-2T), the environmental detector 20 detects that the harmful gas concentration information of the farm is always maintained at 7%. At this time, the environment detector 20 outputs a high-level maintained environment information, and the control center 30 processes the environment information and then outputs an execution information, so that the speed regulating device 11 controls the rotation speed of the fan 10 to perform a small speed regulation, for example, increase the rotation speed from 62% to 70%.
In the third case, in the next adjustment period (1-2T), the environmental detector 20 detects that the harmful gas concentration information of the farm has dropped from 7% to 6%. At this time, the environment detector 20 outputs environment information of high-order descent, and the control center 30 processes the environment information to output execution information, so that the speed regulating device 11 controls the rotation speed of the fan 10, maintains the current rotation speed, and waits for the environment information in another adjustment time period.
In a fourth case, during the next adjustment period (1-2T), the environmental detector 20 detects that the harmful gas concentration information of the farm has dropped from 7% to less than 5%. At this time, the environment detector 20 outputs environment information in a normal range, and the control center 30 processes the environment information to output execution information, so that the speed adjusting device 11 does not need to adjust the fan 10 and maintains the current rotation speed.
It should be noted that in the case where the environmental information in a single monitoring area 200A is out of the normal level, the environmental information in the remaining monitoring areas 200A may be increased due to the environmental information in the other monitoring areas 200A, that is, the concentration of the harmful gas. However, due to the partition arrangement, when the environmental information in one of the monitoring areas 200A is abnormal, the fans 10 in the monitoring area 200A are adjusted individually, and it is not necessary that all the fans 10 increase the rotation speed at the same time.
Therefore, when the environmental detectors 20 detect the farm in different zones, the environmental detectors 20 detect the environmental information of one of the monitoring areas 200A, and the control center 30 controls the fans 10 corresponding to the monitoring areas 200A to adjust the speed individually, so that the environmental information in the monitoring areas 200A is restored to the normal range again.
As shown in fig. 9, in the first embodiment, each monitoring area 200A is partitioned into a plurality of monitoring areas 200A according to the area of the farm, and each monitoring area 200A is monitored in a partitioned manner. In the present embodiment, the zonal monitoring is performed according to the culture density of the farm.
It is understood that the density of the areas of the farm where the cultivation density is different, and since the main sources of harmful gas are excrements and food residues of livestock, etc., the concentration of harmful gas generated in the areas where the cultivation density is high is large. It will be appreciated that the concentration of harmful gases in different areas of the farm is not the same and sufficient time is required to spread elsewhere in the farm to achieve approximately consistent concentration information, while by zonal control of the farm for different farming densities, the concentration of harmful gases in the overall farm is more efficiently controlled.
For example, the monitoring information comprises that the monitoring unit 33 detects the number of animals in each position of the farm and calculates according to the number of animals in each position of the farm. The partition unit 34 obtains the quantity information of the livestock at each position in the farm, and further divides a plurality of monitoring areas 200B according to the quantity information of the livestock in a unit area.
The partition unit 34 partitions the monitoring information, that is, the livestock quantity information of the farm, and it can be understood that the detection unit 33 detects that the livestock quantity on the north side of the farm is greater and the livestock quantity on the south side is less, and at this time, the partition unit 34 partitions the farm into two monitoring areas 200B according to the monitoring information, wherein the livestock quantity on the north side of the monitoring area 200B is greater and the livestock quantity on the south side of the monitoring area 200B is less.
Specifically, the monitoring unit 33 monitors the farm, and acquires monitoring information of the breeding density of the farm. The monitoring information is transmitted to the partition unit 34 of the control center 30, and the partition unit 34 outputs partition information according to the monitoring information of the cultivation density.
More specifically, the monitoring information is transmitted to the partition unit 34, wherein the partition unit 34 is communicatively connected to the environment probe 20 and the governor device 11, wherein the partition unit 34 outputs the partition information according to the monitoring information, wherein the partition information divides the farm into a plurality of monitoring areas 200B. The partition information is transmitted to the environment detector 20, and the environment detector 20 executes the partition information, and performs partition detection according to the monitoring area 200B in the following detection process. On the other hand, the partition information is transmitted to the speed control device 11, and the speed control device 11 executes the partition information so that the speed control devices 11 of the fans 10 in the same monitoring area 200B are in a linkage state, that is, the fans 10 in the same monitoring area 200B are in linkage speed control.
As shown in fig. 10, in the first embodiment, each monitoring area 200A is partitioned into a plurality of monitoring areas 200A according to the area of the farm, and each monitoring area 200A is monitored in a partitioned manner. In the second embodiment, the monitoring area 200B is divided into a plurality of monitoring areas according to the culture density of the farm. In the present embodiment, the monitoring is performed in a partitioned manner according to the type of cultivation in the farm.
It is understood that the species of livestock in the farm differ in life style and food, so that the density of harmful gas generated by different species of livestock is different, and some species of livestock with larger food intake generate higher concentration of harmful gas because the main source of harmful gas is the excrement, food residue and the like of livestock. It will be appreciated that the concentration of harmful gases in different areas of the farm is not the same and sufficient time is required to spread elsewhere in the farm to achieve approximately consistent concentration information, while by zonal control of the farm for different livestock species, the concentration of harmful gases in the overall farm is more efficiently controlled.
For example, the monitoring unit 33 monitors the farm and outputs monitoring information, which includes the type of livestock being cultured in the farm and the location thereof in the farm. Typically, the same type of farm animals need to be raised in the same location area.
When the partition unit 34 receives the monitoring information on the livestock species, the regional division of the farm is performed, for example, the livestock species cultured in the farm in the north area is chicken, the livestock species cultured in the left area on the south side is pig, and the livestock species cultured in the right area on the south side is cow. Thus, the partition unit 34 divides the farm into three monitoring areas 200C, one of which is located north, another of which is located left of south, and a last of which is located right of south.
Specifically, the monitoring unit 33 monitors the farm, and acquires monitoring information on the breeding type of the farm. The monitoring information is transmitted to the partition unit 34 of the control center 30, and the partition unit 34 outputs partition information according to the monitoring information of the breeding species.
More specifically, the monitoring information is transmitted to the partition unit 34, wherein the partition unit 34 is communicatively connected to the environment detector 20 and the governor device 11, wherein the partition unit 34 outputs the partition information according to the monitoring information, wherein the partition information divides the farm into a plurality of monitoring areas 200C. The partition information is transmitted to the environment detector 20, and the environment detector 20 executes the partition information to perform partition detection according to the monitoring area 200C in the following detection process. On the other hand, the partition information is transmitted to the speed control device 11, and the speed control device 11 executes the partition information so that the speed control devices 11 of the fans 10 in the same monitoring area 200C are in an interlocking state, that is, the fans 10 in the same monitoring area 200C are in interlocking speed control.
According to the above embodiment, the present invention further provides a partitioning method of an automatic ventilation system, comprising the steps of:
(a) Acquiring monitoring information of a farm, and transmitting the monitoring information to the partition unit 34;
(b) The partition unit 34 processes the monitoring information and outputs partition information; and
(c) The partition information is transmitted to the environment monitor, the environment monitor performs partition monitoring operation, the partition information is transmitted to the plurality of speed adjusting devices 11, and the speed adjusting devices 11 of all the fans 10 in the monitoring area 200 are adjusted in a linkage manner.
In a first embodiment, steps (a) and (b) are carried out as
(a1) Acquiring monitoring information of a farm area, and transmitting the monitoring information to the partition unit 34; and
(b1) The partition unit 34 processes the monitoring information, outputs partition information, and partitions a plurality of monitoring areas 200 according to areas.
In a second embodiment, steps (a) and (b) are carried out as
(a2) Obtaining the breeding density information of a farm area, and transmitting the monitoring information to the partition unit 34; and
(b2) The partition unit 34 processes the monitoring information, outputs partition information, and partitions a plurality of monitoring areas 200 according to the cultivation density.
In a third embodiment, steps (a) and (b) are carried out as
(a3) Obtaining breeding type information of a farm area, and transmitting the monitoring information to the partition unit 34; and
(b3) The partition unit 34 processes the monitoring information, outputs partition information, and partitions a plurality of monitoring areas 200 according to the breeding species.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (3)
1. An automatic speed regulating method of an automatic ventilation system is characterized by comprising the following steps:
(a) Detecting environmental information in a farm in a unit speed regulation time period;
(b) A judging unit for transmitting the environmental information to a control center, and judging whether the environmental information in the farm is normal, wherein the method further comprises the following steps after the step (b):
(b1) The judging unit judges the environment information and environment information in a normal range, and outputs judgment information in the normal range when the environment information is judged to be in the normal range; when the current environment information is judged to be beyond the normal range for the first time, the control center outputs waiting information to wait for the environment information of the next adjustment time period; and
(c) When it is determined that the environmental information is out of the normal range for the first time and waits for the output of the environmental information for the next adjustment time period, transmitting the environmental information for the next adjustment time period to an execution unit for executing a corresponding speed adjustment operation, wherein the step (c) is further implemented as:
(c1) When the environmental information in the next adjustment time period is detected to be the harmful gas concentration information which continuously rises, the environmental information which continuously rises is output, and the environmental information which continuously rises is transmitted to the execution unit, the execution information which is greatly adjusted is output, so that the speed adjusting device is controlled to control the fan to greatly adjust the rotating speed;
step (c) is implemented as:
(c3) When the environmental information in the next adjustment time period is detected to be reduced in harmful gas concentration information and still is in a high position, outputting waiting information, preparing to receive the environmental information in the next adjustment time period, and maintaining the rotating speed of the current fan;
after the step (c 3), returning to the step (b), and continuing to perform the operation of the next step;
before the step (a), the following steps are also included:
(a01) Acquiring monitoring information of the farm, wherein the monitoring information is transmitted to a partition unit, the monitoring information comprises the number of livestock at each position in the farm detected by the monitoring unit and calculated according to the number of the livestock at each position in the farm, and the partition unit acquires the number information of the livestock at each position in the farm and further divides a plurality of monitoring areas according to the number information of the livestock in a unit area;
(a02) The partition unit processes the monitoring information and outputs partition information; and
(a03) The partition information is transmitted to an environment monitor, the environment monitor executes partition monitoring operation, the partition information is transmitted to a plurality of speed adjusting devices, and the speed adjusting devices of all fans in the monitoring area are adjusted in a linkage mode.
2. The automatic speed adjusting method of an automatic ventilation system according to claim 1, wherein the step (c) is implemented as:
(c2) And outputting small-amplitude up-regulation execution information when the environmental information in the next regulation time period is detected that the stable position of the harmful gas concentration information is at a high position, so as to control a speed regulation device to control the fan to complete small-amplitude up-regulation of the rotating speed.
3. The automatic speed adjusting method of an automatic ventilation system according to claim 1, wherein the step (c) is implemented as:
(c4) The method comprises the following steps When the environmental information in the next adjustment time period is detected to reduce the harmful gas concentration information to a normal range, maintaining information is output without adjusting the rotating speed of the fan.
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| CN102176173B (en) * | 2011-03-03 | 2015-08-12 | 中兴通讯股份有限公司 | Method for controlling number of revolution and device |
| CN205876761U (en) * | 2016-07-14 | 2017-01-11 | 绍兴上虞恒运通风设备有限公司 | Fan of rotational speed is changed according to harmful gas concentration |
| CN107339743B (en) * | 2017-06-23 | 2019-11-05 | 青岛海尔空调器有限总公司 | Air conditioner room unit and its control method with air-cleaning function |
| CN107357229A (en) * | 2017-07-28 | 2017-11-17 | 福建中电合创电力科技有限公司 | A kind of ambient temperature and humidity monitoring method and its system |
| CN107479388A (en) * | 2017-09-26 | 2017-12-15 | 西南科技大学 | A kind of classroom central air-conditioning and the energy-saving control system and control method of illumination |
| CN107883549A (en) * | 2017-10-27 | 2018-04-06 | 安徽育安实验室装备有限公司 | One kind experiment Inteldectualization Indoors ventilated control system |
| CN108157192A (en) * | 2017-12-26 | 2018-06-15 | 牧原食品股份有限公司 | A kind of intelligence pig house and its environment automatic control system |
| CN208207589U (en) * | 2018-03-28 | 2018-12-07 | 滑县永达饲料有限公司 | A kind of farm's environmental control system |
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