CN110096085B - Control method and terminal of intelligent granary - Google Patents
Control method and terminal of intelligent granary Download PDFInfo
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Abstract
The invention discloses a control method of an intelligent granary, which obtains storage temperature information T0Temperature information T in the warehouse1And storage humidity information RH0And humidity information RH in the warehouse1(ii) a Judging whether the temperature information in the bin is less than the storage temperature information and whether the humidity information in the bin is less than the storage humidity information, if T is1≥T0And RH1≥RH0Judging whether the humidity information in the bin is smaller than the storage humidity information or not when the temperature information in the bin reaches the storage temperature information under the air-conditioning refrigeration condition, if so, sending an air-conditioning refrigeration instruction, and otherwise, sending an air-conditioning refrigeration instruction and a dehumidification instruction; the intelligent granary temperature and humidity control system realizes real-time and accurate temperature and humidity control on the intelligent granary, improves production efficiency, reduces labor cost, avoids misoperation caused by manual intervention and possible injury to human bodies, and realizes high efficiency and energy conservation while storing temperature information and humidity information.
Description
Technical Field
The invention relates to the technical field of intelligent granaries, in particular to a control method and a terminal of an intelligent granary.
Background
The control of the temperature and humidity change in the granary is extremely important in the granary management, and the detection and control of the temperature and the humidity have important significance for preventing the grain from mildewing. At present, the situation of grains cannot be monitored fully only by artificial treatment, and some practical technological means are needed to assist in monitoring the situation of grains, so that the probability of deterioration of grains is reduced, and hidden dangers are eliminated in a sprouting state. The problems of dewing, heating, mildew and the like are caused by the fact that the temperature and humidity change in the granary is extremely important to control in granary management because the seasonal climate of oceanic subtropical zones in Fuzhou city is short in winter and long in summer all the year round, is warm and humid, high-temperature weather and rainfall weather are concentrated in summer, the heated area of the granary roof is large, the heat insulation performance is poor, the grain storage environment in the granary is susceptible to atmospheric influence and deterioration, if timely ventilation is not performed in summer, the accumulated heat and accumulated humidity in the granary are discharged timely, the surface temperature and humidity of a grain pile are prone to being increased sharply, and the excessive difference amplitude is generated between the accumulated heat and humidity and the temperature and humidity of grains in middle and lower layers.
With the rapid development of science and technology, electronic technology, information technology, communication technology and automation technology have been widely applied to various industries. The electronic and informatization improvement of the grain depot is also actively promoted by the grain depot and all the directly-affiliated depots, the improvement of the technical level of grain storage in China is greatly promoted, for example, the remote detection of grain temperature is basically realized in the grain depot, but the requirements of the grain depot from the modernization are still greatly different. Under the conditions of large grain depot area and limited personnel organization, the automation level of various technologies, such as automatic control of doors and windows of a warehouse, automatic control of a ventilation technology, a monitoring technology of the warehouse, automatic detection of phosphine gas concentration and the like, is urgently needed to be further improved. And the modernized grain depot is really realized by further integrating the technology.
Because the main factor influencing the grain storage safety is the temperature and the humidity in the grain stack, how to control the temperature and the humidity in the grain stack becomes an important development direction of the granary management.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the control method and the terminal of the intelligent granary are provided, and real-time and accurate temperature and humidity control of the intelligent granary is achieved.
In order to solve the technical problems, the invention adopts the technical scheme that:
the control method of the intelligent granary comprises the following steps:
s1, obtaining storage temperature information T0Temperature information T in the warehouse1And storage humidity information RH0And humidity information RH in the warehouse1；
S2, judging whether the temperature information in the bin is less than the storage temperature information and whether the humidity information in the bin is less than the storage humidity information, if T1≥T0And RH1≥RH0And judging whether the humidity information in the bin is less than the storage humidity information or not when the temperature information in the bin reaches the storage temperature information under the air-conditioning refrigeration condition, if so, sending an air-conditioning refrigeration instruction, and otherwise, sending an air-conditioning refrigeration instruction and a dehumidification instruction.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
the control terminal of the intelligent granary comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the computer program to realize the following steps:
s1, obtaining storage temperature information T0Temperature information T in the warehouse1And storage humidity information RH0And humidity information RH in the warehouse1；
S2, judging whether the temperature information in the bin is less than the storage temperature information and whether the humidity information in the bin is less than the storage humidity information, if T1≥T0And RH1≥RH0And judging whether the humidity information in the bin is less than the storage humidity information or not when the temperature information in the bin reaches the storage temperature information under the air-conditioning refrigeration condition, if so, sending an air-conditioning refrigeration instruction, and otherwise, sending an air-conditioning refrigeration instruction and a dehumidification instruction.
The invention has the beneficial effects that: the control method of the intelligent granary obtains the temperature information and the humidity information fed back by each sensor in the granary, thereby controlling the operation of the electric window, the fan and the air conditioner according to the feedback information, realizing real-time and accurate temperature and humidity control on the intelligent granary, providing the production efficiency, reducing the labor cost, avoiding misoperation caused by manual intervention and possible injury to human bodies, meanwhile, under the condition of air conditioner refrigeration, having a certain drying and dehumidifying function, judging whether the humidity is reduced to a proper standard in the temperature adjusting process in advance, if the humidity is not reached, namely the local humidity is too high, the control method can be matched with the fan and the electric window to ventilate, dissipate, dehumidify and realize high efficiency and energy conservation when the temperature information and the humidity information are stored.
Drawings
Fig. 1 is a schematic flow chart of a control method of an intelligent granary according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a control terminal of the intelligent granary according to an embodiment of the present invention.
Description of reference numerals:
1. a control terminal of the intelligent granary; 2. a memory; 3. a processor.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, the control method of the intelligent granary includes the steps:
s1, obtaining storage temperatureInformation T0Temperature information T in the warehouse1And storage humidity information RH0And humidity information RH in the warehouse1；
S2, judging whether the temperature information in the bin is less than the storage temperature information and whether the humidity information in the bin is less than the storage humidity information, if T1≥T0And RH1≥RH0And judging whether the humidity information in the bin is less than the storage humidity information or not when the temperature information in the bin reaches the storage temperature information under the air-conditioning refrigeration condition, if so, sending an air-conditioning refrigeration instruction, and otherwise, sending an air-conditioning refrigeration instruction and a dehumidification instruction.
From the above description, the beneficial effects of the present invention are: temperature information and humidity information that each sensor feedbacks in acquireing the granary, thereby according to feedback information control electronic window, the operation of fan and air conditioner, in order to realize carrying out real-time and accurate atmospheric control to intelligent granary, production efficiency is provided, the cost of labor has been reduced, the maloperation that manual intervention appears and the injury that human body probably received have been avoided, and simultaneously, under the refrigerated condition of air conditioner, have certain system dry dehumidification function, can judge in advance at the in-process of adjusting the temperature earlier, whether humidity also can drop to suitable standard, if can't reach, be too high for local humidity, then can cooperate fan and electronic window to ventilate the heat dissipation dehumidification, thereby when reaching storage temperature information and storage humidity information, high efficiency and energy saving has been realized.
Further, the step S1 further includes: obtaining the out-of-warehouse temperature information T2And humidity information RH outside the warehouse2；
The step S2 further includes:
if T1<T0And RH1≥RH0Judging whether the temperature information outside the warehouse is less than the storage temperature information and whether the humidity information outside the warehouse is less than the storage humidity information, if T2<T0And RH2<RH0Sending a natural ventilation instruction, wherein the natural ventilation instruction is to open the electric window and start a fan;
if T2≥T0And RH2<RH0Judging whether the temperature information in the bin is less than the storage temperature information or not when the humidity information in the bin reaches the storage humidity information under the natural ventilation condition, if so, sending a natural ventilation instruction, and otherwise, sending a natural ventilation instruction and an air conditioner refrigeration instruction;
if RH2≥RH0And sending a forced ventilation instruction, wherein the forced ventilation instruction is to close the electric window and start a fan.
From the above description, according to the environment conditions outside the cabin, the temperature and humidity control can be realized by using natural ventilation, so that the energy of the air conditioner and the dehumidification equipment is saved; if the humidity outside the storehouse is too big, then for the rainy condition, if open the window ventilation this moment, then can make the humidity in the storehouse more and more high on the contrary, so under the condition of closing electric window, dehumidify through the fan.
Further, the in-bin humidity information RH in the step S11Humidity information RH in a first bin comprising a first humidity sensor11And humidity information RH in the second compartment of the second humidity sensor12；
The step S1 further includes: acquiring a second humidity position where the second humidity sensor is located;
the step S2 further includes: if the RH is equal to11<RH0And RH12≥RH0And sending a local ventilation instruction, wherein the local ventilation instruction is to start a second humidity fan in the area where the second humidity position is located.
From the above description, if the local humidity is too high, the grain surface is turned over to take out the heat dissipation ditch, and the single-pipe fan is matched to dissipate heat and dehumidify the local part, and meanwhile, the low-humidity low-temperature air flow can be used for bringing out the damp heat by matching with window opening at night for ventilation and heat dissipation.
Further, in step S2, the local ventilation instruction is specifically:
starting a second humidity fan in the area where the second humidity position is located and adjusting the direction of an air outlet of the second humidity fan and the second humidity positionThe electric window is offset downwards by a height H1The first air-blowing position of be in same first straight line to the start is located electric window below and distance exceed the second auxiliary air fan of skew height and adjustment the supplementary air-out vector of second auxiliary air fan with the sum of the humidity air-out vector of second humidity fan is the direction perpendicular to electric window's final air-out vector, the size of supplementary air-out vector does the air-out size and the direction of second auxiliary air fan do the air outlet orientation of second auxiliary air fan, the size of humidity air-out vector does the air-out size and the direction of second humidity fan do the air outlet orientation of second humidity fan.
It can be known from the above description, when carrying out local ventilation, if direct with the mouth of blowing aim at humidity position and electronic window, wind can remove to other positions in the granary, influence the humidity information of other positions in the granary, when electronic window in the level below of second humidity fan and second humidity position when the higher position of granary, wind can blow down, utilize the second auxiliary fan who is located to make under the electronic window to provide an ascending power, make the wind that second humidity fan blown out only flow on the higher position of granary, and realize ventilating through electronic window and outside, in order to reach the effect that ventilates and dehumidify, and can not influence the humidity information of other positions in the granary.
Further, the in-bin temperature information T in said step S11First in-cabin temperature information T including a first temperature sensor11And second in-cabin temperature information T of the second temperature sensor12；
The step S1 further includes: acquiring a first temperature position where the first temperature sensor is located and a second temperature position where the second temperature sensor is located;
the step S2 further includes: if said T is11<T0And T12≥T0Then send out fan adjustment instruction, fan adjustment instruction specifically is: adjusting a first temperature fan in the area where the first temperature position is located, enabling an air outlet of the first temperature fan to face the first temperature position, and adjustingAnd a second temperature fan which is arranged in the area where the second temperature position is located and is opposite to the first temperature fan is arranged, so that an air outlet of the second temperature fan faces the second temperature position.
From the above description, when carrying out local heat dissipation, because air conditioning sinks, so lead to the temperature of granary bottom to be generally less than the top, temperature when the granary bottom reaches storage temperature information, and the temperature at granary top does not reach storage temperature information, because the fan all sets up on the lateral wall and the temperature measurement position is in the granary, first temperature position is described to the air outlet orientation of first temperature fan, the air outlet orientation second temperature position fan of second temperature fan, make the inside wind direction of whole granary be same direction, thereby realized carrying out local heat dissipation through the inside circulation of granary, need not to refrigerate once more through the air conditioner, thereby effectual energy saving, reach energy-efficient effect.
Referring to fig. 2, the control terminal of the intelligent granary includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and when the processor executes the computer program, the following steps are implemented:
s1, obtaining storage temperature information T0Temperature information T in the warehouse1And storage humidity information RH0And humidity information RH in the warehouse1；
S2, judging whether the temperature information in the bin is less than the storage temperature information and whether the humidity information in the bin is less than the storage humidity information, if T1≥T0And RH1≥RH0And judging whether the humidity information in the bin is less than the storage humidity information or not when the temperature information in the bin reaches the storage temperature information under the air-conditioning refrigeration condition, if so, sending an air-conditioning refrigeration instruction, and otherwise, sending an air-conditioning refrigeration instruction and a dehumidification instruction.
From the above description, the beneficial effects of the present invention are: temperature information and humidity information that each sensor feedbacks in acquireing the granary, thereby according to feedback information control electronic window, the operation of fan and air conditioner, in order to realize carrying out real-time and accurate atmospheric control to intelligent granary, production efficiency is provided, the cost of labor has been reduced, the maloperation that manual intervention appears and the injury that human body probably received have been avoided, and simultaneously, under the refrigerated condition of air conditioner, have certain system dry dehumidification function, can judge in advance at the in-process of adjusting the temperature earlier, whether humidity also can drop to suitable standard, if can't reach, be too high for local humidity, then can cooperate fan and electronic window to ventilate the heat dissipation dehumidification, thereby when reaching storage temperature information and storage humidity information, high efficiency and energy saving has been realized.
Further, the processor, when executing the computer program, further implements the steps of: obtaining the out-of-warehouse temperature information T2And humidity information RH outside the warehouse2；
In step S2, the processor executes the computer program to further implement the following steps:
if T1<T0And RH1≥RH0Judging whether the temperature information outside the warehouse is less than the storage temperature information and whether the humidity information outside the warehouse is less than the storage humidity information, if T2<T0And RH2<RH0Sending a natural ventilation instruction, wherein the natural ventilation instruction is to open the electric window and start a fan;
if T2≥T0And RH2<RH0Judging whether the temperature information in the bin is less than the storage temperature information or not when the humidity information in the bin reaches the storage humidity information under the natural ventilation condition, if so, sending a natural ventilation instruction, and otherwise, sending a natural ventilation instruction and an air conditioner refrigeration instruction;
if RH2≥RH0And sending a forced ventilation instruction, wherein the forced ventilation instruction is to close the electric window and start a fan.
From the above description, according to the environment conditions outside the cabin, the temperature and humidity control can be realized by using natural ventilation, so that the energy of the air conditioner and the dehumidification equipment is saved; if the humidity outside the storehouse is too big, then for the rainy condition, if open the window ventilation this moment, then can make the humidity in the storehouse more and more high on the contrary, so under the condition of closing electric window, dehumidify through the fan.
Further, the in-bin humidity information RH in the step S11Humidity information RH in a first bin comprising a first humidity sensor11And humidity information RH in the second compartment of the second humidity sensor12；
In step S1, the processor executes the computer program to further implement the following steps: acquiring a second humidity position where the second humidity sensor is located;
in step S2, the processor executes the computer program to further implement the following steps: if the RH is equal to11<RH0And RH12≥RH0And sending a local ventilation instruction, wherein the local ventilation instruction is to start a second humidity fan in the area where the second humidity position is located.
From the above description, if the local humidity is too high, the grain surface is turned over to take out the heat dissipation ditch, and the single-pipe fan is matched to dissipate heat and dehumidify the local part, and meanwhile, the low-humidity low-temperature air flow can be used for bringing out the damp heat by matching with window opening at night for ventilation and heat dissipation.
Further, in step S2, the local ventilation instruction is specifically:
starting a second humidity fan in the area where the second humidity position is located and adjusting the direction of an air outlet of the second humidity fan, the second humidity position and the downward offset height H of the electric window1The first air-blowing position of be in same first straight line to the start is located electric window below and distance exceed the second auxiliary air fan of skew height and adjustment the supplementary air-out vector of second auxiliary air fan with the sum of the humidity air-out vector of second humidity fan is the direction perpendicular to electric window's final air-out vector, the size of supplementary air-out vector does the air-out size and the direction of second auxiliary air fan do the air outlet orientation of second auxiliary air fan, the size of humidity air-out vector does the air-out size and the direction of second humidity fan do the air outlet orientation of second humidity fan.
It can be known from the above description, when carrying out local ventilation, if direct with the mouth of blowing aim at humidity position and electronic window, wind can remove to other positions in the granary, influence the humidity information of other positions in the granary, when electronic window in the level below of second humidity fan and second humidity position when the higher position of granary, wind can blow down, utilize the second auxiliary fan who is located to make under the electronic window to provide an ascending power, make the wind that second humidity fan blown out only flow on the higher position of granary, and realize ventilating through electronic window and outside, in order to reach the effect that ventilates and dehumidify, and can not influence the humidity information of other positions in the granary.
Further, the in-bin temperature information T in said step S11First in-cabin temperature information T including a first temperature sensor11And second in-cabin temperature information T of the second temperature sensor12；
In step S1, the processor executes the computer program to further implement the following steps: acquiring a first temperature position where the first temperature sensor is located and a second temperature position where the second temperature sensor is located;
in step S2, the processor executes the computer program to further implement the following steps: if said T is11<T0And T12≥T0Then send out fan adjustment instruction, fan adjustment instruction specifically is: adjusting a first temperature fan in the area where the first temperature position is located, enabling an air outlet of the first temperature fan to face the first temperature position, adjusting a second temperature fan in the area where the second temperature position is located and located on the opposite side of the first temperature fan, and enabling an air outlet of the second temperature fan to face the second temperature position.
From the above description, when carrying out local heat dissipation, because air conditioning sinks, so lead to the temperature of granary bottom to be generally less than the top, temperature when the granary bottom reaches storage temperature information, and the temperature at granary top does not reach storage temperature information, because the fan all sets up on the lateral wall and the temperature measurement position is in the granary, first temperature position is described to the air outlet orientation of first temperature fan, the air outlet orientation second temperature position fan of second temperature fan, make the inside wind direction of whole granary be same direction, thereby realized carrying out local heat dissipation through the inside circulation of granary, need not to refrigerate once more through the air conditioner, thereby effectual energy saving, reach energy-efficient effect.
Referring to fig. 1, a first embodiment of the present invention is:
the control method of the intelligent granary comprises the following steps:
s1, obtaining storage temperature information T0Temperature information T in the warehouse1And storage humidity information RH0Humidity information RH in warehouse1And outside temperature information T2And humidity information RH outside the warehouse2；
S2, judging whether the temperature information in the bin is less than the storage temperature information and whether the humidity information in the bin is less than the storage humidity information, if T1≥T0And RH1≥RH0And judging whether the humidity information in the bin is smaller than the storage humidity information or not when the temperature information in the bin reaches the storage temperature information under the air-conditioning refrigeration condition, if so, sending an air-conditioning refrigeration instruction, and otherwise, sending an air-conditioning refrigeration instruction and a dehumidification instruction.
Wherein, send air conditioner refrigeration instruction and dehumidification instruction and be the cooperation instruction, specifically do: predicting real-time humidity information reached by humidity information in a bin when the temperature information in the bin reaches storage temperature information under the condition of air conditioning refrigeration, acquiring a difference value between the real-time humidity information and the storage humidity information, and controlling dehumidification equipment to realize the difference value by a dehumidification instruction; or acquiring a relational expression of the humidity change along with the temperature change under the air-conditioning refrigeration condition and a relational expression of the temperature change along with the humidity change under the dehumidification equipment starting condition, so as to obtain the air-conditioning refrigeration time and the dehumidification equipment starting time, and when the temperature information in the cabin reaches the storage temperature information, the humidity information in the cabin reaches the storage humidity information.
If T1<T0And RH1≥RH0Judging whether the temperature information outside the warehouse is less than the storage temperature information and whether the humidity information outside the warehouse is less than the storage humidity information, if T2<T0And RH2<RH0Sending a natural ventilation instruction, wherein the natural ventilation instruction is to open the electric window and start a fan;
if T2≥T0And RH2<RH0Judging whether the temperature information in the bin is less than the storage temperature information or not when the humidity information in the bin reaches the storage humidity information under the natural ventilation condition, if so, sending a natural ventilation instruction, and otherwise, sending a natural ventilation instruction and an air conditioner refrigeration instruction;
if RH2≥RH0And sending a forced ventilation instruction, wherein the forced ventilation instruction is to close the electric window and start a fan.
Referring to fig. 1, the second embodiment of the present invention is:
the control method of the intelligent granary is based on the first embodiment, and the humidity information RH in the granary in the step S11Humidity information RH in a first bin comprising a first humidity sensor11And humidity information RH in the second compartment of the second humidity sensor12；
Step S1 further includes: acquiring a second humidity position where a second humidity sensor is located;
step S2 further includes: if RH11<RH0And RH12≥RH0If so, sending a local ventilation instruction, wherein the local ventilation instruction is to start a second humidity fan in the area where the second humidity position is located; the local ventilation instruction in step S2 is specifically:
starting a second humidity fan in the area where the second humidity position is located and adjusting the air outlet orientation of the second humidity fan to be in downward deviation height H with the second humidity position and the electric window1The first air blowing position is located on the same first straight line, the second auxiliary fan which is located below the electric window and exceeds the offset height in distance is started, the sum of the auxiliary air outlet vector of the second auxiliary fan and the humidity air outlet vector of the second humidity fan is adjusted to be the final air outlet vector of the direction perpendicular to the electric window, the auxiliary air outlet vector is the air outlet direction of the second auxiliary fan, the air outlet direction of the second auxiliary fan is the air outlet size of the second auxiliary fan, and the air outlet direction of the second auxiliary fan is the air outlet direction of the humidity air outlet vectorThe air outlet of the second humidity fan is small and the direction of the air outlet of the second humidity fan is towards.
When the electric window is arranged below the level of the second humidity fan and the second humidity position is arranged at a higher position of the granary, the method is used; if the electric window is below the level of the second humidity fan and the second humidity position is at the lower position of the granary or the electric window is above the level of the second humidity fan and the second humidity position is at the higher position of the granary, the direction of the air outlet of the second humidity fan is adjusted to be in the same third straight line with the second humidity position and the position of the electric window; if the electric window is arranged above the level of the second humidity fan and the second humidity position is arranged at the lower position of the granary, the direction of the air outlet of the second humidity fan, the second humidity position and the upward deviation height H of the electric window are adjusted2The second air blowing position is located on the same fourth straight line, and the second auxiliary fan which is located above the electric window and exceeds the offset height in distance is started, and the sum of the auxiliary air-out vector of the second auxiliary fan and the humidity air-out vector of the second humidity fan is adjusted to be the final air-out vector of the electric window, wherein the direction of the final air-out vector is perpendicular to the direction of the final air-out vector of the electric window.
The in-bin temperature information T in step S11First in-cabin temperature information T including a first temperature sensor11And second in-cabin temperature information T of the second temperature sensor12；
Step S1 further includes: acquiring a first temperature position where a first temperature sensor is located and a second temperature position where a second temperature sensor is located;
step S2 further includes: if T11<T0And T12≥T0Then send out fan adjustment instruction, fan adjustment instruction specifically is: and adjusting a first temperature fan in the area where the first temperature position is located to enable an air outlet of the first temperature fan to face the first temperature position, adjusting a second temperature fan in the area where the second temperature position is located and located on the opposite side of the first temperature fan, and enabling an air outlet of the second temperature fan to face the second temperature position.
The technical scheme that the temperature and humidity information storage device is adaptive to local overhigh humidity, multipoint local heating, low-layer local overhigh humidity and the like is provided, so that the temperature and humidity information is stored, energy consumption is reduced, and the effects of high efficiency and energy conservation are achieved.
Referring to fig. 2, a third embodiment of the present invention is:
the control terminal 1 of the intelligent granary comprises a memory 3, a processor 2 and a computer program which is stored on the memory 3 and can run on the processor 2, and the first step of the embodiment is realized when the processor 2 executes the computer program.
The control terminal of this embodiment is as the host computer of humiture measurement and control system, and humiture measurement and control system still includes data collection station as observing and controlling the extension and temperature sensor and humidity transducer etc. of being connected with data collection station.
The control terminal adopts digital equipment, which facilitates the exchange of information of the future system society and the network interconnection, and adopts a scheme of matching digital and analog elements, namely, the measurement and execution part is realized by analog devices, and the upper computer and the measurement and control extension are realized by digital devices and are matched with proper software, thereby realizing the temperature and humidity measurement and control in the warehouse.
The upper computer is a control center of the whole temperature and humidity measurement and control system and mainly completes the following functions:
1. data acquisition: the host automatically sends out various query commands, and collects the history and current state of each cluster and the sent data;
2. data processing: analyzing and comparing the acquired data, making a judgment, and sending an execution command to an execution mechanism;
3. displaying: and (4) displaying the related information of the temperature and the humidity of the storehouse in a centralized manner. The industrial personal computer is used as an upper computer, the storage capacity of industrial control is achieved, the working speed is high, high-level language programming can be used, and a friendly man-machine conversation interface is realized.
The measuring and controlling branch is equivalent to 1 information transfer station in the system, on one hand, the measuring and controlling branch converts temperature and humidity data detected by a measuring device into allowable standard signals and transmits the allowable standard signals to an upper computer, and on the other hand, the measuring and controlling branch transmits control execution commands of a main computer to an execution mechanism, namely ventilation control current. The measuring and controlling extension selects a high-performance 8-bit singlechip P87C591 produced by an advanced COMS process, the singlechip is a singlechip with a CAN controller in a chip and derived from 80C51, each granary is provided with 1 singlechip, each slave is responsible for data detection of each granary, and voltage signals of temperature and humidity of each detection point obtained by a temperature and humidity sensor and a conversion circuit of the temperature and humidity sensor are sent to a corresponding signal amplification and arrangement circuit for amplification after signal selection is carried out by a temperature deconcentrator or a humidity deconcentrator and a matrix network, enter an analog-to-digital converter and obtain digital signals, and the digital signals are sent to the slave. A temperature measuring cable, a ventilation controller and a temperature adjusting circuit are also used in the measurement and control process. The branch machine is connected with the temperature and humidity deconcentrator and the ventilation controller by adopting a single multi-core cable, wherein the deconcentrator can receive a measurement command sent by the branch machine and convert an analog switch of a measurement circuit to an appointed measurement point; the temperature measuring cable is made by putting a plurality of thermistors into 1 cable, and in order to improve the tensile strength of the temperature measuring cable, a thin steel wire rope is added into the cable, and an insulating sheath is added to play a role in sealing and corrosion prevention.
As for the connection of the host and the extension, the host and the extension are communicated with the master control station through an RS-232/RS-485 communication interface so as to meet the requirements of long-distance transmission and communication rate of data, the communication rule is about 1200 meters of the maximum transmission distance of SC1801.RS-485, the maximum transmission rate is 10Mbps, the maximum load of a bus is 32 unit loads, and a multi-master structure is not supported. Compared with the traditional RS-485 transmission mode, the communication mode of the granary temperature and humidity measurement and control system adopts the field bus technology. In the field bus technology, single scattered digital intelligent measurement and control equipment is used as a network node, and information exchange is realized by bus connection, so that the extension is not only responsible for an information transfer task, but also can be independently used as 1 independent controller to perform simple judgment and control after a load is increased and a control network is enlarged, and an automatic control function and a network system function are jointly completed for an upper computer to share a heavy control task.
The field terminal measurement mainly solves the problem of sensor selection. The granary is large in size and multiple in measuring points, so that the investment of a system can be saved during the use of a more economical terminal for measurement, and during the simulation period, namely, the negative temperature coefficient thermistor is used as a temperature sensor, and a thermistor temperature measuring device can be inserted into a granary pile during use. Generally, 3-4 thermistors are arranged on a single temperature measuring cable, the temperature detection range is generally-40 ℃ to +50 ℃, and the detection precision is +/-1 ℃. The humidity sensor HM1500 with a protective rod-shaped package is selected, has high reliability, long-time stability and high and low resistance to chemicals, can adapt to severe measurement environments such as high pressure and corrosion in grains, and has a humidity measurement range of 5-99% RH and a relative humidity precision of +/-3% RH.
On the whole, the remote temperature and humidity measurement and control system mainly comprises a temperature and humidity collector, a temperature and humidity measurement and control platform, a controller, an execution mechanism, a remote communication module, upper computer monitoring center software and the like, adopts a bus structure and a modular design, can independently work and can work in a networking mode, is convenient to construct and has good expandability. The intelligent temperature and humidity collector adopts international advanced temperature-sensitive and humidity-sensitive elements to transmit temperature and humidity parameters; the temperature and humidity measurement and control platform is internally provided with a microprocessor, is intelligently designed, can work independently and can be conveniently networked, and can also monitor and manage the work of each temperature and humidity measurement and control device, instruct each corresponding mechanism to realize the detection and control of the environment, meanwhile, the communication function of the control platform enables the temperature and humidity measurement and control platform to be used as a lower computer to receive the management and control of an upper computer and a computer, and can be connected into a central network of a total measurement and control system through communication means such as telephone lines, communication cables and the like.
The temperature and humidity collector is used for measuring the temperature and humidity of the environment, the temperature and humidity are measured with high precision by adopting a temperature-sensitive resistor and a polymer humidity-sensitive capacitor, and the temperature and humidity reference is automatically calibrated by intelligent design; the controller receives the instruction of the temperature and humidity measurement and control platform and controls the start and stop of the actuating mechanism; the actuating mechanism is equipment for realizing the functions of heating, humidifying, dehumidifying and the like, such as a fan, an air conditioner and the like; the measurement and control platform is an important component of a temperature and humidity measurement and control system, is a hub for connecting a temperature and humidity measurement and control and signal acquisition device and a control terminal, transmits alarm setting parameters to a measuring end on one hand, and acquires the temperature and humidity values and the switching variables of each point; and on the other hand, the temperature and humidity value, the state and the switch variable are uploaded to a computer management control center. The patrol measuring and controlling instrument provides a liquid crystal display to display the states of time, channel number, temperature, humidity, air draft, dehumidification and the like. The system state comprises ventilation, forced ventilation, failure, locking and query, a temperature and humidity control value can be continuously set, the work of a temperature and humidity measuring and controlling device is automatically monitored according to a set instruction, the operation of the whole system is controlled, and meanwhile, the system can be communicated with a control terminal through a communication module to be networked and receive a work instruction of the control terminal; the communication link module is connected with the control terminal and the measurement and control platform, so that the measurement and control platform is incorporated into a control management center system of the overall calculation; the control terminal can remotely display and detect a plurality of measurement and control platforms in real time; historical data of each measurement and control platform can be stored and analyzed, and corresponding processing is carried out; each measurement and control parameter of the platform can be set and controlled; each measurement and control platform can be searched regularly, and the condition of each platform can be reported timely;
from the view of integral control, the PLC program functions of mechanical ventilation in the control terminal comprise window control, fan control, alarm control and fault feedback; the ventilation operation mode mainly comprises three operation modes: manual ventilation, timed ventilation, and smart ventilation modes. In any ventilation mode, the system needs to have functions of rain alarm and humidity alarm, and when a rain signal or a humidity overlarge signal (exceeding an alarm value set by the system) is monitored, the ventilation system automatically enters a closing program (with the highest grade); the ventilation interface is provided with an emergency stop button, all running equipment can be forcibly stopped under any ventilation state, and the system can automatically start and stop ventilation operation according to the setting of time intervals.
Meanwhile, the air conditioner temperature control PLC program controls the temperature of the cabin by controlling the air conditioner of each room through the host, so that the purposes of on-site control and remote control are achieved. The remote control has three modes: the remote server end can monitor the running state in real time and detect the temperature and humidity inside and outside the bin in real time, so that relevant parameters are provided for the running of the module.
Referring to fig. 2, a fourth embodiment of the present invention is:
the control terminal 1 of the intelligent granary realizes the steps of the second embodiment when the processor 2 executes the computer program on the basis of the first embodiment.
In summary, the control method and the terminal for the intelligent granary provided by the invention can acquire the temperature information and the humidity information fed back by each sensor in the granary, thereby controlling the operation of the electric window, the fan and the air conditioner according to the feedback information to realize real-time and accurate temperature and humidity control on the intelligent granary, providing production efficiency, reducing labor cost, avoiding misoperation caused by manual intervention and possible injury to human bodies, simultaneously, under the condition of air-conditioning refrigeration, the air-conditioning refrigeration system has certain functions of drying and dehumidifying, and can firstly judge whether the humidity is reduced to a proper standard in the process of temperature adjustment in advance, if the humidity cannot be reduced to the proper standard, if the local humidity is too high, the fan and the electric window can be matched for ventilation, heat dissipation and dehumidification, so that the temperature information and the humidity information are stored, and meanwhile, high efficiency and energy conservation are realized; according to the environment condition outside the warehouse, the temperature and humidity control can be realized by using natural ventilation, so that the energy of air conditioners and dehumidification equipment is saved; the technical scheme is adaptive to local overhigh humidity, multipoint local heating, low-layer local overhigh humidity and the like, so that the temperature and humidity information is stored, energy consumption is reduced, and the effects of high efficiency and energy conservation are achieved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (8)
1. The control method of the intelligent granary is characterized by comprising the following steps:
s1, obtaining storage temperature information T0Temperature information T in the warehouse1And storage humidity information RH0And humidity information RH in the warehouse1；
S2, judging whether the temperature information in the bin is less than the storage temperature information and whether the humidity information in the bin is less than the storage temperature informationStore humidity information if T1≥T0And RH1≥RH0Judging whether the humidity information in the bin is smaller than the storage humidity information or not when the temperature information in the bin reaches the storage temperature information under the air-conditioning refrigeration condition, if so, sending an air-conditioning refrigeration instruction, otherwise, sending an air-conditioning refrigeration instruction and a dehumidification instruction, wherein the dehumidification instruction is to perform ventilation, heat dissipation and dehumidification by matching a fan and an electric window;
the step S1 further includes: obtaining the out-of-warehouse temperature information T2And humidity information RH outside the warehouse2；
The step S2 further includes:
if T1<T0And RH1≥RH0Judging whether the temperature information outside the warehouse is less than the storage temperature information and whether the humidity information outside the warehouse is less than the storage humidity information, if T2<T0And RH2<RH0Sending a natural ventilation instruction, wherein the natural ventilation instruction is to open the electric window and start a fan;
if T2≥T0And RH2<RH0Judging whether the temperature information in the bin is less than the storage temperature information or not when the humidity information in the bin reaches the storage humidity information under the natural ventilation condition, if so, sending a natural ventilation instruction, and otherwise, sending a natural ventilation instruction and an air conditioner refrigeration instruction;
if RH2≥RH0And sending a forced ventilation instruction, wherein the forced ventilation instruction is to close the electric window and start a fan.
2. The control method of the intelligent granary according to claim 1, wherein the in-bin humidity information RH in step S11Humidity information RH in a first bin comprising a first humidity sensor11And humidity information RH in the second compartment of the second humidity sensor12；
The step S1 further includes: acquiring a second humidity position where the second humidity sensor is located;
in the step S2Further comprising: if the RH is equal to11< RH0And RH12≥RH0And sending a local ventilation instruction, wherein the local ventilation instruction is to start a second humidity fan in the area where the second humidity position is located.
3. The control method of the intelligent granary according to claim 2, wherein the local ventilation instruction in the step S2 is specifically:
starting a second humidity fan in the area where the second humidity position is located and adjusting the direction of an air outlet of the second humidity fan, the second humidity position and the downward offset height H of the electric window1The first air-blowing position of be in same first straight line to the start is located electric window below and distance exceed the second auxiliary air fan of skew height and adjustment the supplementary air-out vector of second auxiliary air fan with the sum of the humidity air-out vector of second humidity fan is the direction perpendicular to electric window's final air-out vector, the size of supplementary air-out vector does the air-out size and the direction of second auxiliary air fan do the air outlet orientation of second auxiliary air fan, the size of humidity air-out vector does the air-out size and the direction of second humidity fan do the air outlet orientation of second humidity fan.
4. The control method of the intelligent granary according to claim 1, wherein the in-granary temperature information T in the step S11First in-cabin temperature information T including a first temperature sensor11And second in-cabin temperature information T of the second temperature sensor12；
The step S1 further includes: acquiring a first temperature position where the first temperature sensor is located and a second temperature position where the second temperature sensor is located;
the step S2 further includes: if said T is11< T0And T12≥T0Then send out fan adjustment instruction, fan adjustment instruction specifically is: adjusting a first temperature fan of an area where the first temperature position is located, so thatThe air outlet of the first temperature fan faces the first temperature position, the area where the second temperature position is located is adjusted, and the second temperature fan and the first temperature fan are located on the opposite side, so that the air outlet of the second temperature fan faces the second temperature position.
5. The control terminal of the intelligent granary comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, and is characterized in that the processor executes the computer program to realize the following steps:
s1, obtaining storage temperature information T0Temperature information T in the warehouse1And storage humidity information RH0And humidity information RH in the warehouse1；
S2, judging whether the temperature information in the bin is less than the storage temperature information and whether the humidity information in the bin is less than the storage humidity information, if T1≥T0And RH1≥RH0Judging whether the humidity information in the bin is smaller than the storage humidity information or not when the temperature information in the bin reaches the storage temperature information under the air-conditioning refrigeration condition, if so, sending an air-conditioning refrigeration instruction, otherwise, sending an air-conditioning refrigeration instruction and a dehumidification instruction, wherein the dehumidification instruction is to perform ventilation, heat dissipation and dehumidification by matching a fan and an electric window;
in step S1, the processor executes the computer program to further implement the following steps: obtaining the out-of-warehouse temperature information T2And humidity information RH outside the warehouse2；
In step S2, the processor executes the computer program to further implement the following steps:
if T1<T0And RH1≥RH0Judging whether the temperature information outside the warehouse is less than the storage temperature information and whether the humidity information outside the warehouse is less than the storage humidity information, if T2<T0And RH2<RH0Sending a natural ventilation instruction, wherein the natural ventilation instruction is to open the electric window and start a fan;
if T2≥T0And RH2<RH0Judging whether the temperature information in the bin is less than the storage temperature information or not when the humidity information in the bin reaches the storage humidity information under the natural ventilation condition, if so, sending a natural ventilation instruction, and otherwise, sending a natural ventilation instruction and an air conditioner refrigeration instruction;
if RH2≥RH0And sending a forced ventilation instruction, wherein the forced ventilation instruction is to close the electric window and start a fan.
6. The control terminal of intelligent granary according to claim 5, wherein the in-bin humidity information RH in step S11Humidity information RH in a first bin comprising a first humidity sensor11And humidity information RH in the second compartment of the second humidity sensor12；
In step S1, the processor executes the computer program to further implement the following steps: acquiring a second humidity position where the second humidity sensor is located;
in step S2, the processor executes the computer program to further implement the following steps: if the RH is equal to11< RH0And RH12≥RH0And sending a local ventilation instruction, wherein the local ventilation instruction is to start a second humidity fan in the area where the second humidity position is located.
7. The control terminal of the intelligent granary according to claim 6, wherein the local ventilation instruction in the step S2 is specifically:
starting a second humidity fan in the area where the second humidity position is located and adjusting the direction of an air outlet of the second humidity fan, the second humidity position and the downward offset height H of the electric window1The first air blowing position is positioned on the same first straight line, and the second auxiliary fan which is positioned below the electric window and has the distance exceeding the offset height is started, and the sum of the auxiliary air-out vector of the second auxiliary fan and the humidity air-out vector of the second humidity fan is adjusted to be vertical to the direction of the second auxiliary fanThe final air outlet vector of the electric window is stated, the size of the auxiliary air outlet vector is the air outlet size and the direction of the second auxiliary fan are the air outlet orientation of the second auxiliary fan, and the size of the humidity air outlet vector is the air outlet size and the direction of the second humidity fan are the air outlet orientation of the second humidity fan.
8. The control terminal of intelligent granary according to claim 5, wherein the in-granary temperature information T in step S11First in-cabin temperature information T including a first temperature sensor11And second in-cabin temperature information T of the second temperature sensor12；
In step S1, the processor executes the computer program to further implement the following steps: acquiring a first temperature position where the first temperature sensor is located and a second temperature position where the second temperature sensor is located;
in step S2, the processor executes the computer program to further implement the following steps: if said T is11< T0And T12≥T0Then send out fan adjustment instruction, fan adjustment instruction specifically is: adjusting a first temperature fan in the area where the first temperature position is located, enabling an air outlet of the first temperature fan to face the first temperature position, adjusting a second temperature fan in the area where the second temperature position is located and located on the opposite side of the first temperature fan, and enabling an air outlet of the second temperature fan to face the second temperature position.
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