Water spraying pressure monitoring device and water spraying self-adaptive control system and method

Abstract

The invention discloses a water spraying pressure monitoring device and a water spraying self-adaptive control system and method. The water spraying pressure monitoring device comprises a pressure monitoring plate, a rotating motor, a supporting frame body, a displacement adjusting mechanism and a controller. The water spraying self-adaptive control system comprises a water spraying pressure monitoring device, a water spraying device and a hoisting device. The water spraying pressure monitoring device is fixed to the outer wall face or the outer window face of a building through the wall attaching connecting mechanism, the monitoring position is accurately adjusted through the displacement adjusting mechanism, the long-strip-shaped pressure detection plate is driven to rotate through the rotating motor, the monitoring area is increased, and the equipment cost is reduced. According to the water spraying self-adaptive control system, the water spraying pressure is monitored through the water spraying pressure monitoring device, and the water pressure of the water spraying device is adjusted through the controller, so that the water spraying pressure of the distributed spray heads meets the requirement, and the constant water spraying pressure is kept for spraying; the system has the advantages of convenience in installation, simplicity in operation, wide coverage area, low equipment cost, accurate monitoring data, good spraying effect and the like.

Description

Technical Field

[0001] The invention relates to a water sprinkling pressure monitoring device, a water sprinkling adaptive control system and a method, and belongs to the technical field of building facade waterproof detection. Background Art

[0002] Water leakage in building exterior walls and windows is a prominent problem in coastal areas, river and lake areas, and plain areas where strong storms often occur in my country. Indoor decoration and renovation are damaged, which has a great impact on people's living experience. Long-term water leakage may also cause safety hazards such as damage to the building facade. Before the building is completed and officially delivered, it is necessary to test whether there are leakage problems in the building's exterior walls and windows. At present, the water spraying test method is often used to evaluate the waterproof quality. This test method uses a certain pressure of water flow to spray the building's exterior walls and windows for a certain period of time to artificially simulate severe weather such as strong storms. After the water seepage problem is found, the leakage point is repaired in time, and then the water spraying test is carried out until it is qualified.

[0003] However, the on-site water spraying detection operation is disturbed by many factors, the position of the water spraying equipment is difficult to maintain constant, the actual water pressure of the building's exterior walls and windows is difficult to reach the set water spraying pressure, and the low water spraying pressure makes it difficult for existing water spraying detection to effectively identify the real leaking point in many cases. Once encountering severe weather such as strong storms, the building's exterior walls and windows are prone to water seepage problems. Excessive water spraying pressure and low water spraying detection pass rate will unnecessarily increase the cost of building construction and maintenance. Summary of the invention

[0004] In view of the problem that the water spraying pressure is difficult to control in the existing on-site water spraying detection test of building exterior walls and windows, the present invention provides a water spraying pressure monitoring device, a water spraying adaptive control system and a method.

[0005] In order to solve the above technical problems, the present invention includes the following technical solutions:

[0006] A water spray pressure monitoring device, comprising: a pressure monitoring plate, a rotating motor, a support frame, a displacement adjustment mechanism and a controller;

[0007] The back of the support frame is provided with a wall attachment connection mechanism, which can be supported on the outer wall or window surface of the building;

[0008] The pressure monitoring plate is in the shape of a long strip, and a distributed piezoelectric conversion sensor is arranged on the front side to monitor the water pressure;

[0009] The rotating shaft of the rotating motor is vertically connected to one end of the pressure monitoring plate, so as to enable the pressure monitoring plate to rotate;

[0010] The rotating motor is connected to the supporting frame through a displacement adjustment mechanism, and the displacement adjustment mechanism is arranged on the supporting frame and can adjust the spatial position of the rotating motor;

[0011] The controller is used to control the displacement adjustment mechanism to adjust the spatial position of the rotating motor, and is also used to control the rotation of the rotating motor, and is used to collect measurement data of the pressure monitoring plate and determine whether the water spraying pressure meets the requirements.

[0012] Further, the displacement adjustment mechanism includes a first motor, a first sliding screw, a sliding platform, a second motor and a second sliding screw;

[0013] The first sliding screw is arranged on the support frame, and the first motor is used to control the rotation of the first sliding screw; the sliding platform is threadedly connected to the first sliding screw, and the rotation of the first sliding screw can drive the sliding platform to move along the length direction of the first sliding screw;

[0014] The second sliding screw is arranged on the sliding platform, the second sliding screw is perpendicular to the first sliding screw, and the second motor is used to control the rotation of the second sliding screw;

[0015] The rotary motor is threadedly connected to the second sliding screw, and the rotation of the second sliding screw can drive the rotary motor to move along the length direction of the second sliding screw.

[0016] Furthermore, the wall attachment connection mechanism is an electric vacuum suction cup.

[0017] Furthermore, the distributed piezoelectric conversion sensor adopts a piezoelectric film sensor, a resistive pressure sensor or a piezoelectric ceramic sensor.

[0018] In addition, the present invention also provides a water sprinkling adaptive control system, comprising:

[0019] The water pressure monitoring device as described above;

[0020] A watering device, comprising a water pump, a water pipe and a distributed sprinkler, wherein the water pump is arranged on the building and connected to a water source;

[0021] A hoisting device is installed on the building, connected to the watering pressure monitoring device through a rope, and the distributed sprinkler heads of the watering device are installed parallel to the outer wall of the building through a hoisting support frame;

[0022] The controller of the water pressure monitoring device can control the rotation speed of the water pump accordingly.

[0023] Accordingly, the present invention also provides a method for using the aforementioned water spray adaptive control system, comprising the following steps:

[0024] Step 1. Install a hoisting device, a water spray pressure monitoring device, and a water spray device on the building, place the water spray pressure monitoring device at the position to be monitored, fix the support frame on the outer wall or the outer window surface through an attached wall connection mechanism, and accurately adjust the position of the pressure monitoring board through a displacement adjustment mechanism; make the distributed nozzles face the water spray pressure monitoring device;

[0025] Step 2. Turn on the water pump and spray water through the distributed nozzles;

[0026] Step 3. The rotating motor drives the pressure monitoring board to rotate, monitor the water spray pressure through the pressure monitoring board, and transmit the water spray pressure data to the controller;

[0027] Step 4. The controller determines whether the water spray pressure is within the preset range;

[0028] If the water spray pressure is within the preset range, proceed to Step 5;

[0029] If the water spray pressure is less than the minimum value of the preset range, send a command to the water pump to increase the pressure, and return to Step 3;

[0030] If the water spray pressure is less than the minimum value of the preset range, send a command to the water pump to increase the pressure, and return to Step 3;

[0031] Step 5. Remove the water spray pressure monitoring device and make the water spray device continuously spray for a preset time.

[0032] Furthermore, in Step 4, before the controller determines whether the water spray pressure is within the preset range, first determine the representative value measured by the water spray pressure monitoring device, and use the representative value for determination. Specifically:

[0033] A1. The collected pressure data forms a pressure monitoring data set X;

[0034] A2. Sort the data in the data set X and determine the median X_mad;

[0035] A3. Calculate the absolute value of the deviation Ki between each data point and the median, sort the deviation values Ki and determine the median deviation K_mad;

[0036] A4. Determine the relationship between K_mad and the preset deviation value H,

[0037] If K_mad < H, output the representative value X_mad measured by the monitoring system;

[0038] If K_mad ≥ H, delete X_mad from the data set X and return to Step A2.

[0039] Due to the adoption of the above technical scheme, the present invention has the following advantages and positive effects compared with the prior art: the water spray pressure monitoring device provided by the present invention can be fixed on the exterior wall or exterior window of the building through a wall-attached connection mechanism, can accurately adjust the monitoring position through a displacement adjustment mechanism, and drive the long strip pressure detection plate to rotate through a rotating motor, thereby increasing the monitoring area and reducing the equipment cost. The water spray adaptive control system and its use method provided by the present invention can monitor the water spray pressure through the water spray pressure monitoring device, and adjust the water pressure of the water spray device through a controller so that the water spray pressure of the distributed sprinkler spray meets the requirements, and control the water spray device to maintain a constant water spray pressure for spraying, solving the problem that the existing water spray detection equipment and the water spray pressure at the detected exterior wall (exterior window) are difficult to control constantly, and improve the effect of the waterproof detection of the exterior wall (exterior window) of the existing building, and has the advantages of easy installation, simple operation, wide coverage area, low equipment cost, accurate monitoring data, and good spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural schematic diagram of a water pressure monitoring device from one perspective in one embodiment of the present invention;

[0041] Figure 2 It is a structural schematic diagram of a water pressure monitoring device in one embodiment of the present invention from another perspective;

[0042] Figure 3 Schematic diagram of the structure of a water sprinkling adaptive control system in one embodiment of the present invention.

[0043] The numbers in the figure are as follows:

[0044] 1-Building; 2-Exterior wall;

[0045] 10-watering pressure monitoring device; 11-support frame; 111-wall connection mechanism; 12-displacement adjustment mechanism; 121-first motor; 122-first sliding screw; 123-sliding platform; 124-second motor; 125-second sliding screw; 13-pressure monitoring board; 14-rotating motor; 15-controller;

[0046] 20-watering device; 21-water pump; 22-water pipe; 23-distributed sprinkler;

[0047] 30-lifting device; 31-lifting cantilever; 32-lifting rope; 33-vertical lifting frame. DETAILED DESCRIPTION

[0048] The following further describes in detail the water spraying pressure monitoring device, water spraying adaptive control system and method provided by the present invention in conjunction with the accompanying drawings and specific embodiments. In combination with the following description, the advantages and features of the present invention will be clearer. It should be noted that the attached drawings are all in a very simplified form and use non-precise scales, only for conveniently and clearly assisting in explaining the purpose of the embodiments of the present invention.

[0049] Embodiment 1

[0050] As Figure 1 and Figure 2 shown, this embodiment provides a water spraying pressure monitoring device 10, including: a support frame body 11, a displacement adjustment mechanism 12, a force monitoring plate 13, a rotary motor 14 and a controller 15.

[0051] An attached wall connection mechanism 111 is provided on the back of the support frame body 11, which can make the support frame body 11 support on the outer wall surface or the outer window surface of the building, and can maintain stability in the high-pressure water spraying environment of the water spraying test to prevent the device from shaking. As an example, the attached wall connection mechanism 111 can adopt an electric vacuum suction cup, and the electric vacuum suction cup includes a suction disc and a vacuum pump. Using the negative pressure generated by the vacuum pump, the support frame body 11 is fixed by the vacuum force generated between the suction disc and the surface of the adsorbed object. Of course, the attached wall connection mechanism 111 can also adopt other implementation methods, such as using an electromagnet. A permanent magnet is provided on the back side of the support frame body 11, and an electromagnet is provided on the inner side of the wall or window. After the electromagnet is energized, it generates a magnetic pole opposite to the permanent magnet, and the support frame body 11 is fixed by the electromagnetic suction force.

[0052] The pressure monitoring plate 13 is strip-shaped, and a distributed piezoelectric conversion sensor is provided on the front to monitor the water spraying pressure. The distributed piezoelectric conversion sensor can convert the pressure of fine water droplets received by the outer wall surface and the outer window surface into an electrical signal. The distributed piezoelectric conversion sensor includes, but is not limited to, a piezoelectric film sensor, a resistive pressure sensor, and a piezoelectric ceramic sensor. When measuring the water droplets sprayed under high pressure in the water spraying test using a distributed sensor, thousands of water droplet pressure data will be obtained in one sampling, and the measured data cannot be directly used to evaluate the water spraying test. In this embodiment, an algorithm is also designed based on the median absolute deviation value to determine the representative value measured by the water spraying monitoring device. Specifically: the collected pressure data forms a pressure monitoring data set X; the median X_mad of the data set X is calculated; the absolute value Ki of the deviation between each data point and the median is calculated, and the median deviation K_mad is calculated; when K_mad < H, where H is a preset deviation value, the representative value X_mad measured by the monitoring system is output; when K_mad ≥ H, X_mad in the data set X is deleted, and then the data set X is recalculated.

[0053] The rotating shaft of the rotating motor 14 is vertically connected to one end of the pressure monitoring plate 13, which can make the pressure monitoring plate 13 rotate. The distance from the center point of the rotating shaft to the farther end of the pressure monitoring plate 13 is recorded as R. Then, driven by the rotating motor 14, the pressure monitoring plate 13 can cover a circular surface with the center point of the rotating shaft as the center and R as the radius. The rotating motor 14 drives the long strip pressure detection plate to rotate, thereby increasing the monitoring area, reducing the area of ​​the distributed piezoelectric conversion sensor, and reducing the equipment cost.

[0054] The rotating motor 14 is connected to the support frame 11 through a displacement adjustment mechanism 12, and the displacement adjustment mechanism 12 is arranged on the support frame 11 and can adjust the spatial position of the rotating motor 14. The displacement adjustment mechanism 12 mainly adjusts the position of the rotating motor 14 and the pressure detection plate in a plane parallel to the outer wall surface or the outer window surface, moves the rotating motor 14 to the point to be monitored, and uses the pressure monitoring plate 13 to measure the water pressure.

[0055] The controller 15 is used to control the displacement adjustment mechanism 12 to adjust the spatial position of the rotating motor 14, and is also used to control the rotation of the rotating motor 14, and is used to collect the measurement data of the pressure monitoring board 13, and determine whether the water pressure meets the requirements. As an example, the controller 15 includes a power module, a data acquisition and processing module, a communication module, and a protective packaging shell; the power module is responsible for supplying power to the entire water pressure monitoring device 10, and no external power is required on site; the data acquisition and processing module collects and filters the water pressure data monitored by the distributed piezoelectric conversion sensor, and converts it into a digital signal, and can also transmit control commands to each motor to control the start and stop, forward rotation and reverse rotation of the motor, and realize the spatial movement and rotation of the pressure monitoring board 13; the communication module is responsible for sending the water pressure data collected by the sensor to the remote cloud platform and the water pump control system, and storing the water pressure data on the cloud platform, so that the water detection results can be traced and used in the later secondary development. The protective packaging shell protects the controller 15 from the harsh environment on site, and has dustproof, waterproof, and impact-proof functions.

[0056] In a specific embodiment, the displacement adjustment mechanism 12 includes a first motor 121, a first sliding screw 122, a sliding platform 123, a second motor 124 and a second sliding screw 125. The first sliding screw 122 is arranged on the support frame 11, and the first motor 121 is used to control the rotation of the first sliding screw 122; the sliding platform 123 is threadedly connected to the first sliding screw 122, and the rotation of the first sliding screw 122 can drive the sliding platform 123 to move along the length direction of the first sliding screw 122; the second sliding screw 125 is arranged on the sliding platform 123, the second sliding screw 125 is perpendicular to the first sliding screw 122, and the second motor 124 is used to control the rotation of the second sliding screw 125; the rotary motor 14 is threadedly connected to the second sliding screw 125, and the rotation of the second sliding screw 125 can drive the rotary motor 14 to move along the length direction of the second sliding screw 125. As an example, a slide rail and a slide groove are respectively arranged on the contact surface between the support frame and the sliding platform, the slide groove is buckled on the slide rail and guides in the first direction, and the first sliding screw provides power for the sliding platform 123; the rotating motor includes a motor base, and a slide rail and a slide groove are also arranged on the contact surface between the motor base and the sliding platform, which play a role of guiding in the second direction.

[0057] Embodiment 2

[0058] Combination Figures 1 to 3 As shown, this embodiment provides a water sprinkling adaptive control system, which includes: a water sprinkling pressure monitoring device 10, a water sprinkling device 20 and a hoisting device 30.

[0059] The specific structure and working principle of the water pressure monitoring device 10 are described in the first embodiment and will not be described in detail here.

[0060] The watering device 20 includes a water pump 21, a water pipe 22 and a distributed sprinkler 23. The water pump 21 can be connected to an external water source, or a water tank can be set on the building to provide a water source. The water pump 21 is connected to the distributed sprinkler 23 through the water pipe 22. The distributed sprinkler 23 is provided with a plurality of nozzles, and the water pressure sprayed by the nozzles can be controlled by controlling the rotation speed of the water pump.

[0061] The hoisting device 30 is arranged on the building 1, and includes a frame 31 arranged on the building 1, and a hoisting cantilever 32, one end of the hoisting cantilever 32 is fixed to the frame 31, and the other end extends out of the outer wall 2 of the building. A rope 33 is arranged on the hoisting cantilever 32, and it is connected to the water spray pressure monitoring device 10 through the rope 33. The rope can also be controlled by setting an electric drum or a winch to realize the lifting and lowering of the water spray pressure monitoring device 10. A vertical lifting frame 34 is also arranged on the hoisting cantilever, and the distributed sprinkler 23 of the sprinkler device 20 is arranged parallel to the outer wall of the building through the vertical lifting frame 34, and the distributed sprinkler 23 can also be moved up and down. Of course, the vertical lifting frame can also be replaced with a rope, and the distributed sprinkler 23 is fixed to the outer wall or the outer window through another wall-attached connection mechanism 111.

[0062] The controller 15 of the water sprinkling monitoring device 10 can adjust the water sprinkling pressure according to the rotation speed of the water pump 21. Specifically, when the monitored water sprinkling pressure value exceeds the preset value, the water pump control system controls the water pump gradient to reduce the pressure. When the monitored water sprinkling pressure value is lower than the preset value, the water pump control system controls the water pump gradient to increase the pressure.

[0063] Embodiment 3

[0064] This embodiment provides a method for using the water sprinkling adaptive control system as described in the second embodiment. Figures 1 to 3 The method of use is further described. The method of use specifically comprises the following steps:

[0065] Step 1: Install a hoisting device 30, a water spraying pressure monitoring device 10, and a water spraying device 20 on the building, so that the water spraying pressure monitoring device 10 is located at the position to be monitored, fix the support frame 11 on the outer wall 2 or the outer window surface of the building 1 through the wall attachment connection mechanism 111, and accurately adjust the position of the pressure monitoring plate 13 through the displacement adjustment mechanism 12; make the distributed sprinkler 23 face the water spraying pressure monitoring device 10;

[0066] Step 2: Turn on the water pump to spray water through the distributed sprinkler 23;

[0067] Step 3: The rotating motor 14 drives the pressure monitoring plate 13 to rotate, monitors the water pressure through the pressure monitoring plate 13, and transmits the water pressure data to the controller 15;

[0068] Step 4: The controller 15 determines whether the water pressure is within a preset range;

[0069] If the water pressure is within the preset range, proceed to step 5;

[0070] If the water pressure is less than the minimum value of the preset range, a command is sent to the water pump to increase the pressure and go to step three;

[0071] If the water spraying pressure is less than the minimum value of the preset range, a command is sent to the water pump to increase the pressure, and it proceeds to Step Three;

[0072] Step Five: Remove the water spraying pressure monitoring device 10, and let the water spraying device 20 continuously spray for a preset time.

[0073] In Step Four, the controller 15 determines whether the water spraying pressure is within the preset range. Before that, a representative value measured by the water spraying pressure monitoring device 10 is determined, and the representative value is used for the determination. Specifically:

[0074] A1. The collected pressure data forms a data set X for pressure monitoring;

[0075] A2. Sort the data in the data set X and determine the median X_mad;

[0076] A3. Calculate the absolute deviation Ki between each data point and the median, sort the deviation values Ki and determine the median deviation K_mad;

[0077] A4. Determine the relationship between K_mad and a preset deviation value H,

[0078] If K_mad < H, output the representative value X_mad measured by the monitoring system;

[0079] If K_mad ≥ H, delete X_mad from the data set X and return to Step A2.

[0080] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0081] The above-described embodiments merely represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A water pressure monitoring device, characterized in that: include: Pressure monitoring plate, rotating motor, support frame, displacement adjustment mechanism and controller; The back of the support frame is provided with a wall attachment connection mechanism, which can be supported on the outer wall or window surface of the building; The pressure monitoring plate is in the shape of a long strip, and a distributed piezoelectric conversion sensor is arranged on the front side to monitor the water pressure; The rotating shaft of the rotating motor is vertically connected to one end of the pressure monitoring plate, so as to enable the pressure monitoring plate to rotate; The rotating motor is connected to the supporting frame through a displacement adjustment mechanism, and the displacement adjustment mechanism is arranged on the supporting frame and can adjust the spatial position of the rotating motor; The controller is used to control the displacement adjustment mechanism to adjust the spatial position of the rotating motor, and is also used to control the rotation of the rotating motor, and is used to collect measurement data of the pressure monitoring plate and determine whether the water spraying pressure meets the requirements.

2. The water pressure monitoring device according to claim 1, characterized in that: The displacement adjustment mechanism includes a first motor, a first sliding screw, a sliding platform, a second motor and a second sliding screw; The first sliding screw is arranged on the support frame, and the first motor is used to control the rotation of the first sliding screw; the sliding platform is threadedly connected to the first sliding screw, and the rotation of the first sliding screw can drive the sliding platform to move along the length direction of the first sliding screw; The second sliding screw is arranged on the sliding platform, the second sliding screw is perpendicular to the first sliding screw, and the second motor is used to control the rotation of the second sliding screw; The rotary motor is threadedly connected to the second sliding screw, and the rotation of the second sliding screw can drive the rotary motor to move along the length direction of the second sliding screw.

3. The water pressure monitoring device according to claim 1 or 2, characterized in that: The wall attachment connection mechanism is an electric vacuum suction cup.

4. The water pressure monitoring device according to claim 1 or 2, characterized in that: The distributed piezoelectric conversion sensor adopts a piezoelectric film sensor, a resistive pressure sensor or a piezoelectric ceramic sensor.

5. A water sprinkling adaptive control system, characterized in that: include: The water pressure monitoring device according to any one of claims 1 to 4; A watering device, comprising a water pump, a water pipe and a distributed sprinkler, wherein the water pump is arranged on the building and connected to a water source; A hoisting device is installed on the building, connected to the watering pressure monitoring device through a rope, and the distributed sprinkler heads of the watering device are installed parallel to the outer wall of the building through a hoisting support frame; The controller of the water pressure monitoring device can control the rotation speed of the water pump accordingly.

6. A method for using the water adaptive control system according to claim 5, characterized in that: The steps include: Step 1: Install a hoisting device, a water spraying pressure monitoring device, and a water spraying device on the building, so that the water spraying pressure monitoring device is located at the position to be monitored, fix the support frame on the outer wall or window surface through the wall attachment connection mechanism, and accurately adjust the position of the pressure monitoring plate through the displacement adjustment mechanism; make the distributed sprinkler head face the water spraying pressure monitoring device; Step 2: Turn on the water pump and spray water through the distributed sprinkler heads; Step 3: The rotating motor drives the pressure monitoring plate to rotate, the water pressure is monitored by the pressure monitoring plate, and the water pressure data is transmitted to the controller; Step 4: The controller determines whether the water pressure is within a preset range; If the water pressure is within the preset range, proceed to step 5; If the water spraying pressure is less than the minimum value of the preset range, a command is sent to the water pump to increase the pressure, and it proceeds to Step 3; If the water spraying pressure is less than the minimum value of the preset range, a command is sent to the water pump to increase the pressure, and it proceeds to Step 3; Step 5: Remove the water spraying pressure monitoring device, and let the water spraying device continuously spray for a preset time.

7. A method for using the water spraying adaptive control system according to claim 6, characterized in that In Step 4, before the controller determines whether the water spraying pressure is within the preset range, first determine the representative value measured by the water spraying pressure monitoring device, and use the representative value for determination. Specifically: A1. The collected pressure data forms a pressure monitoring data set X; A2. Sort the data in the data set X and determine the median X_mad; A3. Calculate the absolute value of the deviation Ki between each data point and the median, sort the deviation values Ki and determine the median deviation K_mad; A4. Determine the relationship between K_mad and the preset deviation value H, If K_mad < H, output the representative value X_mad measured by the monitoring system; If K_mad ≥ H, delete X_mad from the data set X, and return to Step A2.

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