Platform for controlling opening degree of water inlet valve of heater

A technology of valve opening and control platform, which is applied in the field of valve control, and can solve the problem that the opening of the water inlet valve of the heater requires manual operation, etc.

Inactive Publication Date: 2019-05-03

永康市胜时电机有限公司

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AI-Extracted Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the opening of the water inlet valve of the heater requires manual operation, the invention provides a control platform for the opening of the water inlet valve of the heater, which implements adaptive edge enhancement processing through the edge analysis results of the image content; The contrast-enhanced image is subjected to high-precision image simplification to obtain the image to be analyzed, which is convenient for subsequent image recognition and image detection...

Method used

[0060] By adopting techniques such as packet switching, it is possible to break through the bottleneck of the development of the second generation, realize high-speed data services, improve spectrum utilization, and increase system capacity. But FDD must use paired frequencies, that is, provide third-generation services in every 2x5MHz bandwidth. This met...

Abstract

The invention relates to a platform for controlling an opening degree of a water inlet valve of a heater. The platform for controlling the opening degree of the water inlet valve of the heater comprises a frequency division duplex communication interface, an automatic control switch, a curve matching device and an automatic control switch, wherein the frequency division duplex communication interface is used for receiving local air temperature wirelessly sent by the meteorological department; the automatic control switch is used for receiving the local air temperature and implementing automatic on-off control on the water inlet valve of the heater based on the local air temperature; the curve matching device is used for connecting all edge pixels so as to obtain multiple closed curves anddividing a graying image into multiple corresponding patterns based on the multiple closed curves; when a pattern exceeding the limit of the matching degree of a preset personnel standard image exists, a personnel existence signal is sent out, and otherwise, a personnel inexistence signal is sent out; and the automatic control switch is used for completely switching on the water inlet valve of theheater when the local air temperature is lower than or equal to a preset air temperature threshold value and the curve matching device outputs the personnel existence signal. Through the platform forcontrolling the opening degree of the water inlet valve of the heater provided by the invention, the electronized control of the opening degree of the water inlet valve of the heater is realized.

Application Domain

Lighting and heating apparatusSpace heating and ventilation details +1

Technology Topic

Automatic controlCommunication interface +5

Image

Examples

Experimental program(1)

Example Embodiment

[0016] The embodiments of the heater inlet valve opening degree control platform of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] Inlet valve types are: butterfly valve, gate valve and ball valve.

[0018] (1) Gate valves are often used in small power stations with a pipe diameter of less than 1m and a high working water head.

[0019] The gate valve has the advantages of simple structure, convenient maintenance, low cost, small hydraulic loss when fully open, good sealing when fully closed, etc., and will not open or close by itself due to the impact of water flow, therefore, no locking device is required. However, the volume and self-weight are heavy, the operation force required for opening and closing is large, the time is long, and the vibration of the moving water is strong.

[0020] Gate valve consists of valve body, bonnet, valve stem and gate plate and other components. According to the type of valve seat, the gate valve has a wedge seat type and a parallel valve seat type. The wedge-shaped valve seat type gate is divided into single gate and double gate, and the double gate is divided into two structures: open rod and dark rod.

[0021] (2) Butterfly valve is referred to as butterfly valve, which is widely used in power stations with water head below 200m.

[0022] The butterfly valve is mainly composed of a cylindrical valve body, a discus-shaped valve that can rotate around the axis in the valve body and other auxiliary components.

[0023] When the butterfly valve is closed, the periphery of the valve is in contact with the valve body to close the water flow path. When opened, the valve is parallel to the direction of the water flow, and the water flows around the two sides of the valve. Butterfly valve has the advantages of small size, light weight, simple structure, low cost, convenient operation, and quick closing under water. However, the valve has the disadvantages of affecting the flow state of water, causing hydraulic loss and large leakage.

[0024] (3) Ball valves are used in large and medium-sized power stations with a water head greater than 250m.

[0025] It has tight closure, very little water leakage, and the sealing device is not easy to wear. There is virtually no hydraulic loss when fully open. The operating torque required for opening and closing is very small, and it can be used for emergency shutdown of dynamic water. Ball valves are generally operated hydraulically or hydraulically.

[0026] In order to overcome the above deficiencies, the present invention builds a heater inlet valve opening control platform, thereby solving the corresponding technical problems.

[0027] figure 1 It is a structural cross-sectional view of a heater used by the heater inlet valve opening control platform according to an embodiment of the present invention. Among them, 1 is the water inlet valve, 2 is the water outlet valve, 3 is the heating pipe, 4 is the heat dissipation medium, and 5 is the packaging shell.

[0028] The heater inlet valve opening degree control platform shown according to the embodiment of the present invention includes:

[0029] A frequency division duplex communication interface, used to receive the local air temperature wirelessly sent by the meteorological department, and output the local air temperature;

[0030] an automatic control switch, connected to the frequency division duplex communication interface, for receiving the local air temperature, and realizing automatic switching control of the water inlet valve of the heater based on the local air temperature;

[0031] A dust measuring instrument, comprising an emission control switch, a parallel light emitter, a light intensity detector and a dust estimator, the emission control switch is used for turning on the parallel light emitter when the dust measuring instrument is in a working mode, and is also used for The dust measuring instrument turns off the parallel light emitter in the power saving mode, the parallel light emitter is arranged just above the image sensor, and is used to send a beam of parallel monochromatic light to the surface of the image sensor, so The light intensity detector is arranged on the surface of the image sensor, and is used for measuring the voltage value obtained by converting the parallel monochromatic light into an electrical signal as an actual voltage, and dividing the actual voltage by a preset reference voltage to obtain Obtaining the relative attenuation rate, and when the relative attenuation rate exceeds the limit, a dust excess signal is issued;

[0032] The image acquisition device is arranged above the water inlet valve of the heater, and is used to collect image data of the adjacent environment of the water inlet valve of the heater, so as to obtain and output the corresponding adjacent environment image;

[0033] The image analysis device is connected to the dust measuring instrument and the image acquisition device respectively, and is used to enter the working mode from the power saving mode when receiving the dust exceeding the standard signal, and in the working mode, to the adjacent environment The image performs the following operations: taking pixels whose brightness values are within the range of preset dust brightness values as pixels to be processed, and fitting each pixel to be processed in the adjacent environment image into a plurality of regions to be processed;

[0034] A dust confirmation device, connected with the image analysis device, is used for receiving the plurality of to-be-processed areas, and uses the to-be-processed areas whose areas match the preset dust areas as the dust areas, and selects the dust areas in the adjacent environment image as the dust areas. When the number exceeds the limit, a processing trigger signal is sent;

[0035] an ultrasonic dust removal device, connected to the dust confirmation device, for receiving the number of dust regions in the adjacent environment image from the dust confirmation device when receiving the processing trigger signal, and based on the proximity The number of dust areas in the environmental image adopts the ultrasonic dust removal mode of the corresponding intensity;

[0036] a contrast enhancement device, connected to the image acquisition device, for receiving the adjacent environment image, performing contrast enhancement processing on the adjacent environment image to obtain a contrast enhanced image, and outputting the contrast enhanced image;

[0037] a first noise processing device, connected to the contrast enhancement device, for receiving the contrast enhanced image, and performing noise type analysis on the contrast enhanced image to obtain various noise types and each noise type in the contrast enhanced image The maximum amplitude corresponding to the noise type;

[0038] A second noise processing device, connected to the first noise processing device, and configured to receive various noise types in the contrast-enhanced image and the maximum amplitude corresponding to each noise type, based on the maximum amplitude from large to small Sort the various noise types in the order of , and output the three noise types with the first three serial numbers as the three noise types to be processed;

[0039] a weight analysis device, connected to the second noise processing device, for receiving the three noise types to be processed, and determining three influence weights corresponding to the three noise types to be processed based on the type weight comparison table, and using the three influence weights to perform sequential correction processing on the initialization binarization threshold to obtain the corrected threshold after the correction processing is completed, and output the corrected threshold;

[0040] an image simplification device, connected to the weight analysis device, for receiving the modified threshold, performing binarization processing on the contrast-enhanced image by using the modified threshold, to obtain an image to be analyzed, and outputting the to-be-analyzed image analyze images;

[0041] a nonlinear filtering device, connected to the image simplification device, for receiving the image to be analyzed, and performing nonlinear filtering on the image to be analyzed to obtain and output a corresponding nonlinear filtering image;

[0042] a static storage device, connected to the first identification device, for pre-storing the preset definition level;

[0043] A first identification device, connected to the non-linear filtering device, is used for receiving the non-linear filtering image, determining each gradient of each pixel of the non-linear filtering image in each direction, and calculating the maximum value of each gradient The value is taken as the reference gradient value of the pixel point, and the edge sharpness of the nonlinear filtered image is determined based on the respective reference gradient values of each pixel point of the nonlinear filtered image, and the edge sharpness is greater than or equal to the preset value. When the definition level is set, a second control signal is sent, and when the edge definition is less than the preset definition level, a first control signal is sent;

[0044] a first startup device, connected to the first identification device, and configured to perform edge enhancement processing corresponding to the edge definition on the nonlinear filtered image after receiving the first control signal;

[0045] A gradient analysis device, connected to the first startup device, is used to receive an edge-enhanced image, perform grayscale processing on the edge-enhanced image to obtain a corresponding grayscale image, and determine the value of each pixel in the grayscale image. Each gradient from the pixel value to the pixel value of the surrounding pixels, when each gradient is greater than or equal to the preset gradient threshold, the pixel is judged as an edge pixel, and when each gradient is less than the preset gradient threshold, the pixel is judged as non- edge pixels;

[0046] A curve matching device, connected with the gradient analysis device, is used to connect all edge pixels to obtain several closed curves, and respectively segment corresponding several patterns from the grayscale image based on the several closed curves. When the matching degree of the standard image of the personnel exceeds the limit, a personnel presence signal is sent, otherwise, a personnel absence signal is sent;

[0047] Wherein, the automatic control switch is also connected to the curve matching device, and is used to fully turn on the heater's input when the local air temperature is lower than or equal to a preset air temperature threshold and the curve matching device outputs the personnel presence signal. water valve;

[0048] Wherein, the automatic control switch is also used to open the water inlet valve of the heater to its full opening when the local air temperature is lower than or equal to a preset air temperature threshold and the curve matching device outputs a signal of the absence of the person half of .

[0049] Next, the specific structure of the heater inlet valve opening degree control platform of the present invention will be further described.

[0050] In the heater water inlet valve opening degree control platform: the automatic control switch is further configured to close the heater water inlet valve when the local air temperature is higher than or equal to a preset air temperature threshold.

[0051] In the heater water inlet valve opening degree control platform: in the ultrasonic dust removal device, adopting an ultrasonic dust removal mode of a corresponding intensity based on the number of dust areas in the adjacent environment image includes: the adjacent environment image The greater the number of dust areas in the , the higher the corresponding intensity of the ultrasonic dust removal mode used.

[0052] In the heater water inlet valve opening control platform: the dust measuring instrument is also used for sending out a dust normal signal when the relative attenuation rate does not exceed the limit.

[0053] In the control platform for the opening degree of the water inlet valve of the heater: the emission power of the parallel light emitter to emit parallel monochromatic light is constant.

[0054] In the heater water inlet valve opening control platform: the preset reference voltage is a voltage value obtained by converting the parallel monochromatic light into an electrical signal when there is no grayscale on the image sensor .

[0055] In the heater inlet valve opening control platform: the weight analysis device further stores the type weight comparison table in advance, and the type weight comparison table saves the influence weight of each noise type on the binarization threshold , which is also used to pre-store the initialized binarization threshold.

[0056] And in the heater water inlet valve opening degree control platform: in the first start-up device, the larger the edge definition is, the edge enhancement corresponding to the edge definition is performed on the nonlinear filtered image The smaller the processing intensity is, an edge-enhanced image obtained by performing edge enhancement processing corresponding to the edge definition on the nonlinear filtered image is output, and the first startup device is further configured to receive the second When the control signal is used, the edge enhancement processing corresponding to the edge sharpness performed on the nonlinear filtered image is stopped.

[0057] In addition, in frequency division duplex mode, uplink and downlink transmissions are performed on different frequencies, respectively.

[0058] In the first and second generation cellular systems, FDD technology is basically used to realize duplex transmission. Especially in the first generation of cellular systems, since the transmission is a continuous baseband signal, different frequencies must be used to provide duplex uplink and downlink channels. When using FDD technology to transmit continuous information in the first-generation cellular system, there must be frequency synthesizers that generate different carrier frequencies at both ends of the transceiver and a duplex filter at the receiving end to prevent the transmitted signal from leaking to the receiver. In addition, in order to facilitate the manufacture of the duplexer, there must be a certain frequency interval between the sending and receiving carrier frequencies. In the second generation of GSM, IS-136 and IS-95 systems, FDD technology is also used. In these systems, since the information is transmitted in a time slot manner, the sending and receiving can be carried out in different time slots, and the transmitted signal of the mobile station or the base station will not cause interference to the local receiver. So, despite the FDD technique employed, expensive duplex filters are not required.

[0059] The characteristic of the FDD mode is that the system receives and transmits on two symmetrical frequency channels separated (up and down frequency interval 190MHz), and uses the guard band to separate the receive and transmit channels.

[0060] The use of packet switching and other technologies can break through the bottleneck of the second-generation development, realize high-speed data services, improve spectrum utilization, and increase system capacity. But FDD must use paired frequencies, that is, to provide third-generation services in every 2x5MHz bandwidth. This method can make full use of the upstream and downstream spectrum when supporting symmetric services, but when asymmetric packet switching (Internet) works, the spectrum utilization rate is greatly reduced (due to the low upstream load, the spectrum utilization rate is reduced by about 40%) , At this point, the TDD model has an incomparable advantage over FDD.

[0061]By adopting the heater inlet valve opening degree control platform of the present invention, aiming at the technical problem that the opening degree of the inlet valve cannot be automatically controlled in the prior art, adaptive edge enhancement processing is implemented through the edge analysis result of the image content; The enhanced image is subjected to high-precision image simplification processing to obtain the image to be analyzed, which is convenient for subsequent image recognition and image detection; a customized dust measuring instrument is used to physically detect the relative attenuation rate of parallel monochromatic light based on detection common sense. The existence of dust particles, on this basis, the image analysis mode is used to confirm the dust particles, and the ultrasonic dust removal mode is used to remove the dust particles in a direction; the automatic control switch is used to control the heater based on the local temperature and on-site personnel conditions. The water inlet valve performs corresponding opening control, thereby solving the above technical problems.

[0062] It should be understood that, although the present invention has been disclosed above with preferred embodiments, the above embodiments are not intended to limit the present invention. For any person skilled in the art, without departing from the scope of the technical solution of the present invention, many possible changes and modifications can be made to the technical solution of the present invention by using the technical content disclosed above, or modified to equivalent changes, etc. effective example. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention still fall within the protection scope of the technical solutions of the present invention.

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