CN112965559B - Industrial computer humidity monitoring control system and monitoring control method - Google Patents
Industrial computer humidity monitoring control system and monitoring control method Download PDFInfo
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- CN112965559B CN112965559B CN202110156466.0A CN202110156466A CN112965559B CN 112965559 B CN112965559 B CN 112965559B CN 202110156466 A CN202110156466 A CN 202110156466A CN 112965559 B CN112965559 B CN 112965559B
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- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
Abstract
The invention discloses an industrial computer humidity monitoring control system and a monitoring control method, wherein the system comprises temperature and humidity sensors, a humidity monitoring platform and a humidity intervention card (1), wherein a drying box (2) can be placed in the humidity intervention card (1), the humidity sensors are in communication connection with the humidity monitoring platform, at least two temperature and humidity sensors are respectively arranged in a computer to be monitored and outside the computer, and whether the computer needs to dehumidify or not is determined by comparing the internal temperature of the computer with the external dew point value. The industrial computer humidity monitoring control system and the monitoring control method provided by the invention have the advantages of simple operation, capability of quickly replacing the drying box, simple structure, low cost and capability of monitoring the humidity in the computer case in real time.
Description
Technical Field
The invention relates to a humidity monitoring and controlling system, in particular to an industrial computer humidity monitoring and controlling system, and belongs to the field of computer safety.
Background
The influence of humidity on electronic elements is large, particularly on industrial computers, firstly, the corrosion speed of internal board circuit and components can be accelerated in a hot and humid environment, secondly, the conditions of power failure, shutdown, equipment sealing, line shutdown and shift switching exist in the production and manufacturing industries, the control fields and the like, the conditions of shutdown and restart can cause the difference of temperature and humidity of internal and external environments of the computer to generate condensation, and the condensation directly drops on the electronic elements in the computer to damage the computer and cause unexpected risk.
At present, the drying mode of electronic and large-scale power equipment is mainly to install an electric heating device in the large-scale equipment, reduce the humidity by increasing the internal temperature, and avoid the influence of humidity and condensation on the large-scale equipment; the small computer equipment is limited by the inner space and can not be additionally provided with an electric heating device, a common method is to add a desiccant bag in the small electronic information equipment to reduce the inner humidity, and the condensation point is staggered by adjusting the humidity to avoid condensation and reduce the humidity, so that the influence of the humidity on the electronic information equipment is reduced.
However, most of computers (electronic information equipment) are integrated in production equipment, and the operation mode of adding the drying agent bag to the cover of the starting box is time-consuming and labor-consuming.
Especially for industries such as industry, control, internet of things, computer rooms, environmental protection, production and manufacturing, traffic and the like, the case cover of a computer cannot be opened due to the restrictions of seasons, production conditions, production processes, working systems, equipment structures, security and protection secrecy and the like of part of computers.
Therefore, there is a need to develop and design a system that can replace the drying agent without opening the cabinet cover and monitor the drying effect.
Disclosure of Invention
In order to overcome the above problems, the present inventors have conducted intensive research, and on one hand, designed an industrial computer humidity detection control system, which includes a temperature and humidity sensor, a humidity monitoring platform, and a humidity intervention card 1, wherein the humidity sensor is in communication connection with the humidity monitoring platform.
Furthermore, the temperature and humidity sensors are at least two and are respectively arranged inside the computer to be monitored and outside the computer, and the temperature and humidity sensors are respectively called as an internal sensor and an external sensor;
the humidity monitoring platform is used for monitoring the data acquired by the temperature and humidity sensor and judging whether the internal humidity of the computer to be detected is too high;
the humidity intervention card is used for performing humidity intervention when the humidity in the computer is too high so as to reduce the humidity in the computer.
Preferably, a power supply module is arranged on the temperature and humidity sensor.
According to the invention, the humidity monitoring platform is provided with a dew point acquisition submodule and an alarm submodule,
the dew point acquisition submodule receives the temperature and humidity detected by an external sensor and acquires a computer external environment dew point value;
the alarm submodule compares the dew point value with the temperature value detected by the internal sensor and gives an alarm when the temperature detected by the internal sensor is less than or equal to the dew point value.
Preferably, the humidity intervention card 1 is mounted on a computer case, which has an opening 11, through which opening 11 the drying box 2 is placed in or taken out of the computer case.
In a preferred embodiment, one end of the humidity intervention card 1 is mounted on the computer back panel or front panel, and has an opening 11 at the mounting end, so that the drying box 2 can be put into the computer case from the outside of the computer case through the opening 11;
the drying box 2 is provided with a drying agent.
On the other hand, the invention also provides an industrial computer humidity detection control method, which comprises the following steps:
s1, respectively installing an internal sensor and an external sensor inside and outside a computer;
s2, acquiring a dew point value of an environment where a computer is located;
s3, determining whether dew point generation risks exist in the computer or not, and if so, giving an alarm to prompt that dehumidification is needed;
and S4, repeating the steps S2 to S3, and continuously monitoring the humidity of the computer.
Further, in step S2, the dew point value of the computer environment is obtained by the following formula:
wherein, T d Representing the ambient dew point, a and b representing constant coefficients, E representing the water vapor pressure, E 0 Represents the saturated water vapor pressure at 0 ℃, and is generally 6.1078hPa;
the vapor pressure e is obtained by the following formula:
wherein U represents the humidity detected by the external sensor, E w Indicating the saturated vapor pressure of the pure water at the level of the dry bulb temperature, and further, E w Can be obtained by the following formula:
wherein, T 1 The temperature of the triple point of water is generally 273.16;
t represents absolute temperature, T =273.15+ T; t represents the temperature detected by the temperature external sensor.
In step S3, when the temperature detected by the internal sensor is greater than the dew point value, it indicates that there is no risk of dew point generation inside the computer;
when the temperature detected by the internal sensor is less than or equal to the dew point value, the dew point generation risk in the computer is indicated, an alarm is given, and a user is prompted that the humidity in the computer is too high and dehumidification is required.
In a preferred embodiment, in step S3, the moisture absorption process is implemented by placing or replacing a drying box.
The industrial computer humidity detection control system provided by the invention has the following beneficial effects:
(1) According to the industrial computer humidity detection control system provided by the invention, the operation is simple, and the drying box can be quickly replaced;
(2) The industrial computer humidity detection control system provided by the invention has the advantages of simple structure and low cost;
(3) According to the industrial computer humidity detection control system provided by the invention, the condensation phenomenon in the computer can be prevented in real time, so that the internal components of the computer are prevented from being damped and mildewed;
(4) According to the industrial computer humidity detection control system provided by the invention, a plurality of computers can be remotely monitored at the same time.
Drawings
FIG. 1 is a schematic diagram of an industrial computer humidity monitoring and control system according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of a humidity intervention card of an industrial computer humidity monitoring and control system according to a preferred embodiment of the present invention;
FIG. 3 is a schematic diagram of a humidity intervention card of an industrial computer humidity monitoring and control system according to a preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of a drying box of an industrial computer humidity monitoring and control system according to a preferred embodiment of the present invention;
FIG. 5 is a schematic diagram of a humidity intervention card of an industrial computer humidity monitoring and control system according to a preferred embodiment of the present invention;
FIG. 6 is a flow chart of a humidity monitoring and controlling method for an industrial computer according to a preferred embodiment of the present invention.
The reference numbers illustrate:
1-humidity intervention card;
2-drying the box;
9-a back panel;
11-opening;
12-hygroscopic holes;
13-a chute;
14-bayonet;
15-screw holes;
16-a case mount;
17-a scaffold;
18-a blanking panel.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The features and advantages of the present invention will become more apparent from the description.
In which, although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
On one hand, the invention discloses an industrial computer humidity detection control system which comprises a temperature and humidity sensor, a humidity monitoring platform and a humidity intervention card, wherein the humidity sensor is in communication connection with the humidity monitoring platform.
The temperature and humidity sensors are respectively arranged inside and outside the computer to be monitored and are respectively called as an internal sensor and an external sensor;
further, the external part of the computer refers to an environment where the computer case is located, for example, if the computer case is placed in the production equipment, the external sensor is placed in the production equipment, and if the computer case is placed in the machine room, the external sensor is placed in the machine room.
According to a preferred embodiment of the present invention, a power supply module is further disposed on the temperature and humidity sensor, and preferably, the power supply module is a battery.
According to the invention, the temperature and humidity sensor is provided with the power supply module, so that the temperature and humidity sensor is not connected with the internal power supply of the computer, and the influence of the internal power supply of the computer on the temperature and humidity sensor is avoided, for example, when the power supply of the computer is turned off, the temperature and humidity sensor is prevented from influencing the stability of voltage and current in the computer.
Preferably, the temperature and humidity sensor also has a communication module, the communication module is preferably a wireless communication module such as bluetooth and WiFi, and communicates with the humidity monitoring platform through the communication module, and transmits the detection value to the humidity monitoring platform.
The humidity monitoring platform is used for monitoring data acquired by the temperature and humidity sensor and judging whether the internal humidity of the computer to be detected is too large, and can be one or more of a mobile phone, a computer, a server and a pad, and is preferably a cloud server.
In a preferred embodiment, the humidity monitoring platform is connected with a plurality of temperature and humidity sensors, and monitors a plurality of computers at the same time.
The humidity intervention card is used for performing humidity intervention when the humidity in the computer is too high so as to reduce the humidity in the computer.
Further, in the invention, the humidity monitoring platform monitors the internal temperature of the computer and the external dew point of the computer, so as to judge whether the internal humidity of the computer is too high.
The dew point is the temperature at which the air is cooled to saturation under the condition that the water vapor content in the air is unchanged and the air pressure is kept constant. When the temperature of the internal environment of the computer case is lower than the dew point of the external environment, water vapor in the environment can be separated out on the surface of the internal part of the computer case, namely, the water is changed from a gas state to a condensed liquid state, so that the internal components of the computer are affected with damp and corroded by mildew, the components are failed, and the risks of complete machine function failure, electrical performance and stability reduction are caused.
According to a preferred embodiment of the present invention, the humidity monitoring platform has a dew point acquisition sub-module therein.
More preferably, the humidity monitoring platform is also provided with an alarm sub-module.
The dew point obtaining submodule is used for obtaining a dew point value and transmitting the dew point value to the alarm submodule;
the alarm sub-module compares the dew point value with the temperature value detected by the internal sensor to determine whether the internal humidity of the computer is too high.
The dew point acquisition submodule may be represented by:
wherein, T d Representing the ambient dew point, a and b representing constant coefficients, E representing the water vapor pressure, E 0 This means a saturated water vapor pressure at 0 ℃ and is generally 6.1078hPa.
Preferably, in the invention, the value of a is 6 to 9, and more preferably 7.69;
the value of b is 220 to 250, and is preferably 243.92;
the parameter value is obtained by the inventor according to experience summary, and verified that when the Td is more than 80 ℃ below zero and less than 40 ℃, the parameter error is +/-0.14 ℃; when Td is more than or equal to 40 ℃ and less than 50 ℃, the error is +/-0.2 ℃.
Further, the water vapor pressure e can be obtained by the following formula:
wherein U represents the humidity detected by the external sensor, E w Indicating the saturated vapor pressure of the pure water level corresponding to the dry bulb temperature, and further, E w Can be obtained by the following formula:
wherein, T 1 Representing the triple point temperature of water, generally 273.16;
t represents absolute temperature, T =273.15+t; t represents the temperature detected by the temperature external sensor.
The alarm submodule compares a dew point value obtained by the dew point obtaining submodule with the temperature detected by the internal sensor:
when the temperature detected by the internal sensor is greater than the dew point value, the fact that no dew point generation risk exists inside the computer is indicated;
when the temperature detected by the internal sensor is less than or equal to the dew point value, indicating that the dew point generation risk exists in the computer, and alarming;
the alarm may be an acoustic-optical alarm, a short message prompt, a screen pop-up window prompt or other prompt modes, and is not limited in the present invention.
A drying box 2 is arranged in the humidity intervention card 1.
Further, the humidity intervention card 1 is disposed in the computer case, one end of the humidity intervention card 1 is mounted on the computer, preferably on the back panel 9 or the front panel of the computer, as shown in fig. 1 to 5, and the mounting end has an opening 11, so that the drying box 2 can be placed into the computer case from the outside of the computer case through the opening 11;
in a preferred embodiment, the humidity intervention card 1 has a length of 150-180 mm, a width of 10-20 mm, and a height of 70-100 mm, which are the same as the maximum dimensions of a conventional expansion element of a computer, so that the humidity intervention card 1 only occupies one PIC, PICE or cd-rom expansion position, and has little influence on the expansion capability of the computer.
The drying box 2 is a cuboid, and a drying agent is arranged in the drying box 2.
In a preferred embodiment, the drying box 2 has a length of 140 to 160mm, a height of 70 to 90mm and a width of 10 to 20mm.
According to a preferred embodiment of the present invention, one or more sides of the drying box 2 are made of nylon net, as shown in fig. 4, so that the drying agent in the drying box 2 can be in sufficient contact with the outside.
Preferably, the desiccant is silica gel dry granules.
In a preferred embodiment, the humidity intervention card 1 has a chute 13, and the drying box 2 is placed in the chute 13; the design of the chute facilitates the removal and insertion of the drying box 2 from the humidity intervention card 1.
More preferably, said humidity intervenes in one or more lateral openings of card 1, so that drying box 2 has a greater contact range with the air.
In a preferred embodiment, when the humidity interference card 1 is installed on the computer backboard 9, the humidity interference card 1 is made of a whole piece of stainless steel by bending, thereby reducing the manufacturing cost.
Further, in the present invention, the shape and size of the mounting end of the opening 11 of the humidity intervention card 1 correspond to the standard mounting opening of the computer back panel 9, and the humidity intervention card 1 is fixed on the computer back panel 9 or the front panel through the cooperation of the bolt and the screw hole 15, wherein the screw hole 15 is formed on the mounting end.
Preferably, in the present invention, the standard computer mounting port refers to a standard 4U chassis mounting port.
In a preferred embodiment, the humidity intervention card 1 is provided with moisture absorption holes 12, so that the drying box 2 in the humidity intervention card 1 can absorb moisture in the chassis.
In a more preferred embodiment, a bayonet 14 having a shape similar to that of a PCI or PCIE interface is disposed at the lower end of the humidity intervention card 1, and the bayonet 14 is inserted into the PCI or PCIE interface of the computer motherboard, so that the humidity intervention card 1 is more stably fixed on the computer motherboard.
In another preferred embodiment, when the humidity intervention card 1 is mounted on a computer front panel, the humidity intervention card 1 further comprises a case holder 16 and a bracket 17, as shown in fig. 5.
The case fixing frame 16 is a square groove body capable of being fixedly installed on the side wall of the computer case, and the support 17 is fixedly connected with the case fixing frame 16 through bolts.
Further, in the present invention, the shape and size of the mounting end of the opening 11 of the humidity intervention card 1 correspond to the front panel CD-ROM extension mounting opening.
In a preferred embodiment, the two sides of the humidity intervention card 1 are hollowed out, so that the drying box 2 in the humidity intervention card 1 can absorb moisture in the case.
Further, the slide groove 13 is provided on the bracket 17, and facilitates taking out and putting in of the drying box 2 from the bracket 17.
In a preferred embodiment, the humidity intervention card 1 further comprises a shutter panel 18 to block the opening 11, thereby making the humidity intervention card 1 more secure and aesthetically pleasing.
Preferably, the shutter panel 18 is fixed to the bracket 17 by bolts.
On the other hand, the invention also provides an industrial computer humidity detection control method, as shown in fig. 6, comprising the following steps:
s1, respectively installing an internal sensor and an external sensor inside and outside a computer;
s2, acquiring a dew point value of an environment where a computer is located;
s3, determining whether dew point generation risks exist in the computer or not, and if so, giving an alarm to prompt that dehumidification is needed;
and S4, repeating the steps S2-S3, and continuously monitoring the humidity of the computer.
In the present invention, the method for mounting the internal sensor and the external sensor in step S1 is not particularly limited, and the internal sensor and the external sensor may be attached to the computer case or fixed by using a bracket.
Further, in step S2, the dew point value of the computer environment is obtained by the following formula:
wherein, T d Representing the ambient dew point, a and b representing constant coefficients, E representing the water vapor pressure, E 0 This means a saturated water vapor pressure at 0 ℃ and is generally 6.1078hPa.
Preferably, in the invention, a is 6-9, and more preferably 7.69;
the value of b is 220 to 250, and is preferably 243.92;
the parameter value is obtained by the inventor according to experience summary, and verified that when the temperature is more than 80 ℃ below zero and Td is less than 40 ℃, the parameter error is +/-0.14 ℃; when Td is more than or equal to 40 ℃ and less than 50 ℃, the error is +/-0.2 ℃.
Further, the vapor pressure e can be obtained by the following formula:
wherein U represents the humidity detected by the external sensor, E w Indicating the saturated vapor pressure of the pure water level corresponding to the dry bulb temperature, and further, E w Can be obtained by the following formula:
wherein, T 1 Representing the triple point temperature of water, generally 273.16;
t represents absolute temperature, T =273.15+ T; t represents the temperature detected by the temperature external sensor.
In step S3, it is determined whether there is a risk of dew point generation inside the computer by comparing the temperature detected by the internal sensor with the obtained dew point value.
Specifically, when the temperature detected by the internal sensor is greater than the dew point value, it indicates that there is no dew point generation risk inside the computer;
when the temperature detected by the internal sensor is less than or equal to the dew point value, the dew point generation risk in the computer is indicated.
Further, when the dew point is generated in the computer, an alarm is given to prompt a user that the humidity in the computer is too high and dehumidification is needed.
The dehumidification treatment is preferably a moisture absorption treatment using a desiccant.
In a preferred embodiment, before step S3, a step S3' of installing a humidity intervention card on the computer case is further included.
The humidity interference card is positioned in the computer case and is preferably arranged on the rear back plate of the computer case.
Further, the humidity intervention card has an opening to facilitate placement of desiccant into the humidity intervention card from outside the cabinet or to replace used desiccant in the humidity intervention card.
Further, in step S3, the desiccant moisture absorption process is implemented by placing or replacing the drying cartridge.
Specifically, after the alarm prompts that dehumidification processing is needed, the drying box is placed into the humidity intervention card through the opening of the humidity intervention card, or the drying box in the humidity intervention card is replaced.
Examples
Example 1
The humidity monitoring control is carried out on a certain industrial computer, and a temperature and humidity sensor is arranged inside and outside the computer.
Wherein, the temperature t =20 ℃ and the humidity U =80% detected by the external sensor, and the temperature detected by the internal sensor is 15 ℃.
Obtaining a dew point value of the computer environment by the following formula:
wherein, T d Represents the ambient dew point, a =7.69, b =243.92;
e denotes the water vapour pressure, E 0 It represents a saturated water vapor pressure at 0 ℃ and is generally 6.1078hPa.
Further, the water vapor pressure e can be obtained by the following formula:
wherein U represents the humidity detected by the external sensor, E w Indicating the saturated vapor pressure of the pure water at the level of the dry bulb temperature, and further, E w Can be obtained by the following formula:
then it can be obtained:
E W ＝10 C
＝10 1.368676
＝23.3708(hPa)
the dew point values in the environment obtained by substituting the formula I and the formula II are as follows:
and comparing the temperature detected by the internal sensor with the dew point value, wherein the internal temperature is lower than the dew point value, which indicates that the dew point is likely to be generated, and placing the drying box in a humidity intervention card for dehumidification.
The present invention has been described above in connection with preferred embodiments, but these embodiments are merely exemplary and merely illustrative. On the basis of the above, the invention can be subjected to various substitutions and modifications, and the substitutions and the modifications are all within the protection scope of the invention.
Claims (2)
1. An industrial computer humidity monitoring control method adopting an industrial computer humidity monitoring control system is characterized by comprising a temperature and humidity sensor, a humidity monitoring platform and a humidity intervention card (1), wherein the humidity sensor is in communication connection with the humidity monitoring platform;
the temperature and humidity sensors are respectively arranged inside and outside the computer to be monitored and are respectively called as an internal sensor and an external sensor;
the humidity monitoring platform is used for monitoring data acquired by the temperature and humidity sensor and judging whether the internal humidity of the computer to be detected is too high;
the humidity intervention card is used for performing humidity intervention when the humidity in the computer is too high so as to reduce the humidity in the computer;
a power supply module is arranged on the temperature and humidity sensor and is a battery;
the temperature and humidity sensor is provided with a communication module which is a wireless communication module; the humidity monitoring platform is a cloud server, is connected with a plurality of temperature and humidity sensors and monitors a plurality of computers at the same time;
the humidity monitoring platform is provided with a dew point acquisition submodule and an alarm submodule,
the dew point acquisition submodule receives the temperature and humidity detected by the external sensor and acquires a computer external environment dew point value;
the alarm sub-module compares the dew point value with the temperature value detected by the internal sensor, and alarms when the temperature detected by the internal sensor is less than or equal to the dew point value;
one end of the humidity intervention card (1) is arranged on a back panel or a front panel of the computer, and an opening (11) is arranged at the mounting end, so that the drying box (2) can be placed into the computer case from the outside of the computer case through the opening (11);
the drying box (2) is internally provided with a drying agent, one surface or a plurality of surfaces of the drying box (2) is/are a nylon net, the length of the humidity intervention card (1) is 150 to 180mm, the width is 10 to 20mm, and the height is 70 to 100mm,
the humidity intervention card (1) has a chute (13), the drying box (2) is placed in the chute (13), one or more sides of the humidity intervention card (1) are open,
when the humidity intervention card (1) is installed on the computer backboard (9), the shape and the size of the installation end of the opening (11) of the humidity intervention card (1) correspond to the standard installation port of the computer backboard (9), a bayonet (14) similar to the PCI or PCIE interface in shape is arranged at the lower end of the humidity intervention card (1), and the bayonet (14) is inserted into the PCI or PCIE interface of the computer mainboard, so that the humidity intervention card (1) is more stably fixed on the computer mainboard; when the humidity intervention card (1) is installed on a computer front panel, the shape and the size of the installation end of the opening (11) of the humidity intervention card (1) correspond to the expansion installation opening of the front panel CD driver; the industrial computer humidity monitoring and controlling method comprises the following steps:
s1, respectively installing an internal sensor and an external sensor inside and outside a computer;
s2, acquiring a dew point value of an environment where a computer is located;
s3, determining whether dew point generation risks exist in the computer or not, and if so, giving an alarm to prompt that dehumidification is needed; s4, repeating the steps S2 to S3, and continuously monitoring the humidity of the computer;
before the step S3, the method also comprises the step S3', and a humidity intervention card is installed on the computer case;
in step S3, when the temperature detected by the internal sensor is greater than the dew point value, it indicates that there is no risk of dew point generation inside the computer;
when the temperature detected by the internal sensor is less than or equal to the dew point value, indicating that the dew point generation risk exists in the computer, giving an alarm, and prompting a user that the humidity in the computer is too high and dehumidification is required;
in step S2, the dew point value of the computer environment is obtained by the following formula:
Wherein the content of the first and second substances,T d representing the ambient dew point, a, b representing constant coefficients,ethe pressure of the water vapor is shown,E 0 represents a saturated water vapor pressure at 0 ℃ of 6.1078hPa;
pressure of water vapoureObtained by the following formula:
Wherein the content of the first and second substances,Uindicating the humidity detected by the external sensor,
the saturated vapor pressure of the pure water level corresponding to the dry bulb temperature is shown,
can be obtained by the following formula:
Wherein the content of the first and second substances,T 1 representing the triple point temperature of water, and taking 273.16;
Tit is meant to indicate the absolute temperature of the material,Tand t represents the temperature detected by the external temperature sensor.
2. The method of claim 1, wherein the humidity monitoring and controlling of the industrial computer,
in step S3, the dehumidification is performed by placing or replacing the drying cartridge.
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