CN114809332B - Electroosmosis pulse waveform generator - Google Patents
Electroosmosis pulse waveform generator Download PDFInfo
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- CN114809332B CN114809332B CN202210552568.9A CN202210552568A CN114809332B CN 114809332 B CN114809332 B CN 114809332B CN 202210552568 A CN202210552568 A CN 202210552568A CN 114809332 B CN114809332 B CN 114809332B
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- pulse
- dehumidification
- processor
- electroosmosis
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/70—Drying or keeping dry, e.g. by air vents
- E04B1/7007—Drying or keeping dry, e.g. by air vents by using electricity, e.g. electro-osmosis
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y10/00—Economic sectors
- G16Y10/80—Homes; Buildings
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y40/00—IoT characterised by the purpose of the information processing
- G16Y40/30—Control
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/13—Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals
Abstract
The invention is suitable for the technical field of electroosmosis water prevention, and provides an electroosmosis pulse waveform generator, which comprises a pulse generating circuit and a pulse generating circuit, wherein the pulse generating circuit is used for generating electroosmosis pulses; the period T of the electroosmosis pulse ranges from 45ms to 750ms; the cycle of each electroosmosis pulse sequentially comprises a positive level section, a negative level section and a zero level section; the durations corresponding to the positive level segment, the negative level segment and the zero level segment are ta, tb and tc respectively, wherein 1 is less than ta: tb < 3, tb: tc is greater than 1; the voltage difference between the positive level section and the negative level section ranges from 24V to 240V; the device utilizes the electroosmosis principle and combines pulse current to lead the free water in the structure body to directionally migrate under the action of an electric field, so that the free water in the internal pores or on the surface of the structure body serving as an object to be dehumidified can be removed.
Description
Technical Field
The invention relates to the technical field of electroosmosis water prevention, in particular to an electroosmosis pulse waveform generator.
Background
In the building waterproof technology, there is an electroosmosis waterproof technology, which belongs to a hidden project, an anode is buried in a concrete structure in advance, a cathode is buried outside the concrete structure, pulse current is generated by an electroosmosis processor and acts on the anode and the cathode, the anode and the cathode are electrified to generate current to form an electromagnetic field, the generated current ionizes water molecules in capillaries or holes through positive and negative electrodes, ionized water moves from the anode to the cathode, the moving force of the ionized water is the electromagnetic force generated inside and outside the structure and is stronger than the gravity of water and the siphon force of capillary tissues, so that the water entering the capillaries is discharged to the outer side of the structure, and the wet structure is gradually dried. As long as the device remains open, the water is always moving in a wet direction and will not flow back again into the inside of the structure.
However, in practical application, the less and the better the water in the concrete structure is, if the water content of the concrete structure is too low, dehydration cracking of the concrete structure may be caused; and the conditions are different from place to place of the structure as the object to be dehumidified, and thus cannot be generalized.
As shown in fig. 1, fig. 1 is a plan view of a room, in which a positive electrode is buried inside and a negative electrode is buried outside, and the direction indicated by an arrow is the moving direction of free water in walls under the action of an electric field, but the water contents in the four walls of the room may not be the same, and problems may occur when electroosmosis technology is applied to the room. Because the water contents in the four walls are not the same, under the condition that the water contents in the four walls are relatively large, the same pulse current is output to the four walls, so that some walls can be excessively dehydrated and cracked, or the electroosmosis effect of the other walls is insufficient, and the water discharge is insufficient.
Disclosure of Invention
The invention provides an electroosmosis pulse waveform generator, which aims to solve the problems that the traditional electroosmosis pulse impermeability dehumidification device has no capability of dynamically adjusting electroosmosis time and frequency of each part of a structure body and lacks a mechanism for feeding back humidity to each part of the structure body.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
an electro-osmotic pulse waveform generator for electro-osmotic pulse permeation and dehumidification, comprising a pulse generation circuit for generating electro-osmotic pulse;
the period T of the electroosmosis pulse ranges from 45ms to 750ms;
the cycle of each electroosmosis pulse sequentially comprises a positive level section, a negative level section and a zero level section; the durations corresponding to the positive level segment, the negative level segment and the zero level segment are ta, tb and tc respectively, wherein 1 is less than ta: tb < 3, tb: tc is greater than 1;
the voltage difference between the positive level segment and the negative level segment ranges from 24V to 240V.
Further, the electroosmosis pulse waveform generator is connected with N positive electrodes and N negative electrodes;
n is a natural number and N is not less than 2, N positive electrodes are arranged on M sections inside a structure body to be dehumidified or on M sections inside the structure body, and N is not less than M; m is a natural number; the structure body can be houses, wall paintings, sculptures, earth dams and the like; each section may refer to each wall of a house, or a multi-sided wall painting on the same wall, etc., and is not particularly limited herein;
the number of the cathodes is N, and the N cathodes are arranged on M sections outside the structural body; a positive electrode and a negative electrode form a group of pulse dehumidification loops; at least one group of pulse dehumidification loops are correspondingly arranged in any interval;
the electroosmosis pulse waveform generator comprises a processing module, wherein the processing module is connected with the pulse generating circuit and is used for generating a control instruction to drive the pulse generating circuit to operate;
the pulse generating circuit is connected with the pulse dehumidifying circuit and is used for loading the generated pulse current on the positive electrode and the negative electrode, so that an electric field capable of enabling free water to directionally migrate is formed on the structural body.
The device also comprises a rectifying circuit, wherein the rectifying circuit is used for converting alternating current voltage provided by a power supply into direct current working voltage for the electroosmosis pulse anti-seepage dehumidifying device to work. The rectification circuit converts alternating voltage of the power supply into ultra-low voltage direct current.
The device utilizes the electroosmosis principle and combines pulse current to lead the free water in the structure body to directionally migrate under the action of an electric field, so that the free water in the pores or on the surface in the structure body can be removed.
Further, the system also comprises an information acquisition circuit connected with the processing module, wherein the information acquisition circuit is used for collecting current data of any positive electrode port or current data of any negative electrode port to send to the processing module; the processing module receives the current data to optimize the control instructions.
The device is characterized in that a plurality of sections are arranged on the structure body, and each section is correspondingly provided with at least one group of pulse dehumidification loops, so that the processing module can perform independently controllable electroosmosis on each section of the structure body; the information acquisition circuit and the communication circuit are arranged to test and collect the current data in any section, so that the processing module can judge the water content in a section of the structure body by receiving and comparing the current data; the higher the water content of a certain section of the structure body is, the larger the current in the group of pulse dehumidification loops is, so that the processing module can judge the water content of the structure body in the section according to the current so as to adjust the frequency and the size of the pulse current and prevent the structure body from being excessively dehydrated to cause dry cracking.
Further, relays for controlling on-off of the pulse dehumidification loops are arranged in each group of pulse dehumidification loops, and any relay is controlled by the processing module. The processing module controls the on-off of the relay in any interval according to the current. When the device is used for dehumidifying houses, the negative electrode is a carbon rod and is buried in soil outside the houses; when the device is in a state that a power supply is started, all pulse dehumidification loops are in a working state; if the current in one group of pulse dehumidification loops is excessively large, at the moment, the carbon rod possibly receives the protruding part of the steel bar in the wall extending into the soil, and the processing module judges to disconnect the relay in the group of pulse dehumidification loops corresponding to the section after receiving and comparing. The processing module may be an 89C51 single-chip processor, etc., so long as the comparison processing of the power supply information values can be implemented, and the control instruction may be sent, which is not limited herein.
Further, the electroosmosis pulse waveform generator is provided with N pulse dehumidification loops, and the information acquisition circuit comprises 2N measuring resistors, a first gating chip and a second gating chip;
the 2N measuring resistors are respectively and correspondingly connected in series at the positive electrode and the negative electrode of the N pulse dehumidification loops; the two ends of the measuring resistor are respectively a first sampling end and a second sampling end;
the first sampling ends of the 2N measuring resistors are correspondingly connected with 2N input ends of a first gating chip, and the output end of the first gating chip is also connected with the non-inverting input end of the operational amplifier;
the second sampling ends of the 2N measuring resistors are correspondingly connected with 2N input ends of a second gating chip, and the output end of the second gating chip is also connected with the inverting input end of the operational amplifier;
the operational amplifier is connected into a differential amplifier mode;
the output end of the operational amplifier is also connected with an ADC port of the processing module;
during data acquisition, the ith channel of the first gating chip and the ith channel of the second gating chip are simultaneously gated, i=1, 2, … … and 2N, and the measuring resistors in each group of pulse dehumidification loops are sequentially connected into the information acquisition circuit.
Further, the device also comprises a protection circuit, wherein the protection circuit is connected with the pulse generating circuit and the pulse dehumidification loop;
the protection circuit is used for protecting the pulse dehumidification loop when the current value or the voltage value is larger than a set protection value between the pulse generation circuit and the pulse dehumidification loop. The protection circuit may be an over-current protection circuit or an over-voltage protection circuit.
Further, the processing module comprises a first processor and a second processor, and the first processor is connected with the second processor through a communication circuit; the communication circuit is used as a bidirectional information conduction channel between the first processor and the second processor and is used for transmitting the current data to the first processor and also used for transmitting a control instruction of the first processor to the second processor;
the first processor is used for receiving the current data and adjusting the voltage and the frequency of electroosmosis pulses in the pulse dehumidification loop;
the second processor is used for receiving the current data or the instruction of the first processor and controlling the on-off of the relay of the pulse dehumidification loop.
Further, the first processor is connected with an internet of things module, and the internet of things module is connected with a network port circuit. The user can issue a command to the first processor through the network, control the on-off of the pulse dehumidification loop and adjust the frequency and the magnitude of the pulse current. If the majority of relays are turned off, the pulse generation circuit is only subjected to a small pulse current, and free water in these sections can be released from the structure more quickly.
The beneficial effects of the invention are as follows:
1. the device utilizes the electroosmosis principle and combines pulse current to lead the free water in the structure body to directionally migrate under the action of an electric field, so that the free water in the pores or on the surface in the structure body can be removed.
The first processor generates a control instruction to drive the pulse generating circuit to operate, the pulse generating circuit generates positive current according to the control instruction and sends the positive current to the positive electrode, generates negative current to the negative electrode, and forms an electric field capable of enabling free water to directionally migrate on the structural body; thereby driving the water ions, the fine charged particles, and the like to move from the positive electrode to the negative electrode, and discharging the free water as a target permeable structure.
2. The device is characterized in that a plurality of sections are arranged on the structural body, humidity feedback is carried out on each section of the structural body, and the electroosmosis time and frequency of each section of the structural body can be dynamically adjusted;
the device is characterized in that a plurality of sections are arranged on the structural body, and each section is correspondingly provided with at least one group of pulse dehumidification loops, so that the device can perform independently controllable electroosmosis on each section of the structural body; the information acquisition circuit and the communication circuit are arranged to test and collect the current data in any section, so that the first processor can judge the water content in a section of the structure body by receiving and comparing the current data; the higher the water content of a certain section of the structure body is, the larger the current in the pulse dehumidification loop is, so that the first processor can judge the water content of the structure body in the section according to the current so as to adjust the frequency and the size of the pulse current and prevent the structure body from being excessively dehydrated to cause dry cracking.
3. A relay for controlling the on-off of the pulse dehumidification loop is arranged in each group of pulse dehumidification loops, and any relay is connected with a second processor; the second processor controls the on-off of the relay in any interval according to the current. When the device is used for dehumidifying houses, the negative electrode is a carbon rod and is buried in soil outside the houses; when the device is in a state that a power supply is started, all pulse dehumidification loops are in a working state; if the current in the pulse dehumidification loop is excessively large, the carbon rod possibly receives the protruding part of the steel bar in the wall extending into the soil, and the second processor judges to disconnect the relay in the pulse dehumidification loop corresponding to the section after receiving and comparing. The second processor may turn off a majority of the relays to cause the pulse generating circuit to apply pulse current only to a small portion, thereby allowing free water in these regions to be released from the structure more quickly.
4. The device saves pins for the second processor by arranging the gating chip. For example, current data of 32 ports need to be collected, the gating chip is sequentially connected to the measuring resistor of each port, and then the current data is measured through the operational amplifier and transmitted to the second processor, so that pins of the second processor for receiving electric signals are reduced.
In summary, the device utilizes the electroosmosis principle and combines pulse current to directionally migrate the free water in the structure under the action of an electric field, so that the free water in the pores or on the surface in the structure can be removed; by providing a plurality of sections on the structure, humidity feedback is performed to sections around the structure, and the electroosmosis time and frequency around the structure can be dynamically adjusted.
Drawings
FIG. 1 is a top view of the electroosmosis technology described in the background art as applied to dehumidification of a room;
FIG. 2 is a schematic diagram of an electroosmotic pulse waveform generator according to the present invention;
FIG. 3 is a schematic diagram of a first processor and peripheral circuits;
FIG. 4 is a schematic diagram of a second processor and peripheral circuitry;
FIGS. 5-6 are schematic diagrams of a portion of a pulsed dehumidification loop;
fig. 7 to 8 are schematic diagrams of communication circuit portions;
FIGS. 9-10 are circuits of a strobe chip and an operational amplifier connected thereto;
FIG. 11 is a diagram of a pulse waveform generated by an electroosmotic pulse waveform generator;
fig. 12 to 13 are schematic diagrams of an information acquisition circuit;
fig. 14 is a schematic diagram of an information acquisition circuit in another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
An electro-osmotic pulse waveform generator for electro-osmotic pulse permeation and dehumidification, comprising a pulse generation circuit for generating electro-osmotic pulse;
the period T of the electroosmosis pulse ranges from 45ms to 750ms;
the cycle of each electroosmosis pulse sequentially comprises a positive level section, a negative level section and a zero level section; the corresponding time lengths of the positive level section, the negative level section and the zero level section are respectively ta, tb and tc, wherein t0, t2 and t3 are rising edges, and t1 is a falling edge; wherein 1 < ta: tb < 3, tb: tc is greater than 1;
the voltage difference between the positive level segment and the negative level segment ranges from 24V to 240V.
Further, the electroosmosis pulse waveform generator is connected with N positive electrodes and N negative electrodes;
n is a natural number and N is not less than 2, N positive electrodes are arranged on M sections inside a structure body to be dehumidified or on M sections inside the structure body, and N is not less than M; m is a natural number; the structure body can be houses, wall paintings, sculptures, earth dams and the like; each section may refer to each wall of a house, or a multi-sided wall painting on the same wall, etc., and is not particularly limited herein;
the number of the cathodes is N, and the N cathodes are arranged on M sections outside the structural body; a positive electrode and a negative electrode form a group of pulse dehumidification loops; at least one group of pulse dehumidification loops are correspondingly arranged in any interval; in this embodiment, P1 to P16 represent 16 sets of pulse dehumidification loops.
The electroosmosis pulse waveform generator comprises a processing module, wherein the processing module is connected with the pulse generating circuit and is used for generating a control instruction to drive the pulse generating circuit to operate; and is also configured to receive the current data to optimize the control command; IN this embodiment, the processing module includes a first processor, the first processor is a main control chip U18, the pins OSC32-OUT and osc32_in of which are connected to the pulse generating circuit, and the main control chip U18 controls the frequency and the positive and negative pulse wavelengths of the pulse generating circuit through software.
The pulse generating circuit is connected with the pulse dehumidifying circuit and is used for loading the generated pulse current on the positive electrode and the negative electrode so as to form an electric field capable of enabling free water to directionally migrate on the structural body; the pulse generating circuit comprises a pulse driving circuit and a pulse generator; the pulse generator comprises a generating circuit, a pulse amplifying circuit for amplifying the pulse signal to obtain a pulse electric signal and an overcurrent protection circuit.
The device also comprises a rectifying circuit, wherein the rectifying circuit is used for converting alternating current voltage provided by a power supply into direct current working voltage for the electroosmosis pulse anti-seepage dehumidifying device to work. The rectification circuit converts alternating voltage of the power supply into ultra-low voltage direct current.
The device utilizes the electroosmosis principle and combines pulse current to lead the free water in the structure body to directionally migrate under the action of an electric field, so that the free water in the pores or on the surface in the structure body can be removed.
Further, the system also comprises an information acquisition circuit connected with the processing module, wherein the information acquisition circuit is used for collecting current data of any positive electrode port or current data of any negative electrode port to send to the first processor; the first processor receives the current data to optimize the control instructions.
The device is characterized in that a plurality of sections are arranged on the structure body, and each section is correspondingly provided with at least one group of pulse dehumidification loops, so that the processing module can perform independently controllable electroosmosis on each section of the structure body; the information acquisition circuit and the communication circuit are arranged to test and collect the current data in any section, so that the processing module can judge the water content in a section of the structure body by receiving and comparing the current data; the higher the water content of a certain section of the structure body is, the larger the current in the group of pulse dehumidification loops is, so that the processing module can judge the water content of the structure body in the section according to the current so as to adjust the frequency and the size of the pulse current and prevent the structure body from being excessively dehydrated to cause dry cracking.
Further, relays for controlling on-off of the pulse dehumidification loops are arranged in each group of pulse dehumidification loops, and any relay is connected and controlled by the processing module. The processing module controls the on-off of the relay in any interval according to the current. When the device is used for dehumidifying houses, the negative electrode is a carbon rod and is buried in soil outside the houses; when the device is in a state that a power supply is started, all pulse dehumidification loops are in a working state; if the current in one group of pulse dehumidification loops is excessively large, at the moment, the carbon rod possibly receives the protruding part of the steel bar in the wall extending into the soil, and the processing module judges to disconnect the relay in the group of pulse dehumidification loops corresponding to the section after receiving and comparing. The processing module may be an 89C51 single-chip processor, etc., so long as the comparison processing of the power supply information values can be implemented, and the control instruction may be sent, which is not limited herein. In this embodiment, pins K01N to K32N of the chip of the second processor are respectively connected to bases of the transistors Q1 to Q32, and on/off of the relays K1 to K32 is controlled through the transistors.
Further, the electroosmosis pulse waveform generator is provided with N pulse dehumidification loops, and the information acquisition circuit comprises 2N measuring resistors, a first gating chip and a second gating chip;
the 2N measuring resistors are respectively and correspondingly connected in series at the positive electrode and the negative electrode of the N pulse dehumidification loops; the two ends of the measuring resistor are respectively a first sampling end and a second sampling end;
the first sampling ends of the 2N measuring resistors are correspondingly connected with 2N input ends of a first gating chip, and the output end of the first gating chip is also connected with the non-inverting input end of the operational amplifier;
the second sampling ends of the 2N measuring resistors are correspondingly connected with 2N input ends of a second gating chip, and the output end of the second gating chip is also connected with the inverting input end of the operational amplifier;
the operational amplifier is connected into a differential amplifier mode;
the output end of the operational amplifier is also connected with an ADC port (namely an A/D conversion interface) of the processing module;
during data acquisition, the ith channel of the first gating chip and the ith channel of the second gating chip are simultaneously gated, i=1, 2, … … and 2N, and the measuring resistors in each group of pulse dehumidification loops are sequentially connected into the information acquisition circuit.
The gating chip is used for saving pins for the second processor. In this embodiment, 4 sets of strobe chips (only one set is shown in the drawing) are provided, wherein one set of chips includes a U5 chip and a U2 chip.
As shown in fig. 12 and 13, P1 and N1 respectively represent an anode and a cathode in the same group of pulse dehumidification loops, when the device is used for dehumidifying a wall, P1 may be a copper wire embedded in the wall, and N1 may be a carbon rod outside the wall;
taking the current data acquisition at the position P1 as an example, U2 is a first gating chip, and U5 is a second gating chip. U5 and U2 are synchronously gated, a first sampling end of a gating resistor R1 at one end of the U5, a second sampling end of the gating resistor R1 at one end of the U2, two input ends of an operational amplifier U1 are respectively connected with U2 and U5, and an output end of the operational amplifier U1 is connected with a second processor U18;
the second processor U18 controls the relay K1 to be closed, at the moment, the group of pulse dehumidification loops start to work, and current passes through the resistor R1; u2 and U5 are synchronously gated to access a first sampling end and a second sampling end of R1; the operational amplifier U1 compares the potential difference between two ends of the resistor R1; divided by the resistance of R1 to give the current data at P1.
As shown in the figure, the pin ADC1N of the U5 chip is connected with the inverting input end of the operational amplifier, the pin ADC1GND of the U2 chip is connected with the non-inverting input end of the operational amplifier, and the operational amplifier is connected with the DLADCP1 pin of the second processor chip.
In other embodiments, as shown in fig. 14, the information acquisition circuit includes a strobe chip and a measurement resistor Rx;
the cathodes of the N pulse dehumidification loops are correspondingly connected with N input ends of the gating chip, and the output ends of the gating chip are grounded through a measuring resistor RX; the output end of the gating chip is also connected with the ADC end of the controller (processor);
as shown in fig. 14, the strobe chip has only one U2; gating the negative electrodes N1-Nn by the gating chip; taking the current measurement at the N1 as an example, the U2 gates the sampling point at the N1, enables the N1 to be in butt joint with the resistor RX, measures the voltage on the resistor RX, and divides the voltage by the resistance value of the resistor RX to obtain the current in the N1 loop.
Further, the device also comprises a protection circuit, wherein the protection circuit is connected with the pulse generating circuit and the pulse dehumidification loop;
the protection circuit is used for protecting the pulse dehumidification loop when the current value or the voltage value is larger than a set protection value between the pulse generation circuit and the pulse dehumidification loop. The protection circuit may be an over-current protection circuit or an over-voltage protection circuit.
Further, the processing module comprises a first processor and a second processor, and the first processor is connected with the second processor through a communication circuit; the communication circuit is used as a bidirectional information conduction channel between the first processor and the second processor and is used for transmitting the current data to the first processor and also used for transmitting a control instruction of the first processor to the second processor;
the first processor is used for receiving the current data and adjusting the voltage and the frequency of electroosmosis pulses in the pulse dehumidification loop;
the second processor is used for receiving the current data or the instruction of the first processor and controlling the on-off of the relay of the pulse dehumidification loop.
Further, the information acquisition circuit is connected with the second processor, and the second processor is connected with the first processor through the communication circuit. The communication circuit is used as a bidirectional information conduction channel between the first processor and the second processor, and is used for transmitting the current data to the first processor and also used for transmitting control instructions of the first processor to the second processor.
The communication circuit comprises communication chips U14 and U28, the CAN_RX pin and the CAN_TX pin of the second processor chip are respectively connected with the VOA pin and the VIB pin of the chip U14, the VIA pin and the VOB pin of the chip U14 are respectively connected with the TXD pin and the RXD pin of the chip U28, and the communication circuit is connected with the MCXH pin of the main control chip U18.
Further, the first processor is connected with an internet of things module, and the internet of things module is connected with a network port circuit. The user can issue a command to the first processor through the network, control the on-off of the pulse dehumidification loop and adjust the frequency and the magnitude of the pulse current. If the majority of relays are turned off, the pulse generation circuit is only subjected to a small pulse current, and free water in these sections can be released from the structure more quickly.
The device adopts the following steps to carry out impervious dehumidification.
Step one: impervious and dehumidified;
the first processor generates a control instruction to drive the pulse generating circuit to operate, the pulse generating circuit generates positive current according to the control instruction and sends the positive current to the positive electrode, generates negative current to the negative electrode, and forms an electric field capable of enabling free water to directionally migrate on the structural body; thereby driving the water ions, the fine charged particles, and the like to move from the positive electrode to the negative electrode, and discharging the free water as a target permeable structure.
Step two: information collection;
the information acquisition circuit collects current data of any positive electrode port or current data of any negative electrode port to send the current data to the first processor; the higher the water content of a certain section of the structure body is, the larger the current in the pulse dehumidification loop is, so that the first processor can judge the water content of the section of the structure body according to the current;
step three: instruction optimization;
the first processor adjusts the frequency and magnitude of the pulsed current according to the collected current data to prevent excessive electro-osmosis, resulting in excessive dehydration of the structure and cracking.
Repeating the above steps.
Further, the step two includes a feedback protection step:
and a feedback protection step:
a relay for controlling the on-off of the pulse dehumidification loop is arranged in each group of pulse dehumidification loops, and any relay is connected with a second processor;
the gating chip sequentially collects the current data of each positive electrode port and the current data of each negative electrode port and sends the current data to the second processor through the operational amplifier;
the second processor controls the relay to be opened or closed according to the feedback of the current data.
For example, when the device is used for house dehumidification, the negative electrode is a carbon rod, the carbon rod is buried in soil outside the house, if the current in a group of pulse dehumidification loops is abnormally excessive, the carbon rod can possibly be connected with a protruding part of a reinforcing steel bar in a wall, which protrudes into the soil, and the second processor controls the relay in the group of pulse dehumidification loops to be disconnected.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (3)
1. An electroosmotic pulse waveform generator, comprising a pulse generating circuit for generating electroosmotic pulses;
the period T of the electroosmosis pulse ranges from 45ms to 750ms;
the cycle of each electroosmosis pulse sequentially comprises a positive level section, a negative level section and a zero level section; the durations corresponding to the positive level segment, the negative level segment and the zero level segment are ta, tb and tc respectively, wherein 1 is less than ta: tb < 3, tb: tc is greater than 1;
the voltage difference range between the positive level section and the negative level section is 24V-240V;
the electroosmosis pulse waveform generator is connected with N positive electrodes and N negative electrodes;
n is a natural number and is more than or equal to 2, N positive electrodes are arranged on M sections inside a structure body to be dehumidified, or on M sections inside the structure body, and N is more than or equal to M; m is a natural number;
the N cathodes are arranged on M sections outside the structure body; a positive electrode and a negative electrode form a group of pulse dehumidification loops; at least one group of pulse dehumidification loops are correspondingly arranged in any interval;
the electroosmosis pulse waveform generator comprises a processing module, wherein the processing module is connected with the pulse generating circuit and is used for generating a control instruction to drive the pulse generating circuit to operate;
the pulse generating circuit loads the generated pulse current on the positive electrode and the negative electrode, so that an electric field capable of enabling free water to directionally migrate is formed on the structural body;
the system also comprises an information acquisition circuit connected with the processing module, wherein the information acquisition circuit is used for collecting current data of any positive electrode port or current data of any negative electrode port to send to the processing module;
comprising the following steps: a relay for controlling the on-off of the pulse dehumidification loop is arranged in each group of pulse dehumidification loops, and any relay is controlled by a processing module;
the electroosmosis pulse waveform generator is provided with N pulse dehumidification loops, and the information acquisition circuit comprises 2N measuring resistors, a first gating chip and a second gating chip;
the 2N measuring resistors are respectively and correspondingly connected in series at the positive electrode and the negative electrode of the N pulse dehumidification loops; the two ends of the measuring resistor are respectively a first sampling end and a second sampling end;
the first sampling ends of the 2N measuring resistors are correspondingly connected with 2N input ends of a first gating chip, and the output end of the first gating chip is also connected with the non-inverting input end of the operational amplifier;
the second sampling ends of the 2N measuring resistors are correspondingly connected with 2N input ends of a second gating chip, and the output end of the second gating chip is also connected with the inverting input end of the operational amplifier;
the operational amplifier is connected into a differential amplifier mode;
the output end of the operational amplifier is also connected with an ADC port of the processing module;
during data acquisition, the ith channel of the first gating chip and the ith channel of the second gating chip are simultaneously gated, i=1, 2, … … and 2N, and the measuring resistors in each group of pulse dehumidification loops are sequentially connected into an information acquisition circuit;
the processing module comprises a first processor and a second processor, and the first processor is connected with the second processor through a communication circuit;
the first processor is used for receiving the current data and adjusting the voltage and the frequency of electroosmosis pulses in the pulse dehumidification loop;
the second processor is used for receiving the current data or the instruction of the first processor and controlling the on-off of the relay of the pulse dehumidification loop.
2. The electro-osmotic pulse waveform generator according to claim 1, further comprising a protection circuit coupled to the pulse generating circuit and the pulse dehumidification circuit.
3. An electroosmotic pulse waveform generator according to claim 1, comprising: the first processor is connected with the Internet of things module, and the Internet of things module is connected with the network port circuit.
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