CN214173430U - A monitoring system that is used for efficiency ann healthy integration of ventilation blower or water pump - Google Patents
A monitoring system that is used for efficiency ann healthy integration of ventilation blower or water pump Download PDFInfo
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Abstract
The utility model relates to a ventilation blower or water pump technique aims at providing a monitoring system that is used for the efficiency health integration of ventilation blower or water pump. A data processing module, a signal input/output module, a data storage module, a display module, a communication module and a power supply module are arranged in a hollow shell of the host part; the data processing module is respectively connected to each module through a signal wire, and the power supply module is used for supplying power to each component; the signal input/output interface is connected to: the device comprises a three-phase multifunctional electric meter, a vibration sensor, a pitot tube wind speed and wind quantity measuring instrument, an electromagnetic flowmeter, a temperature sensor, a pressure sensor and a driving motor. The utility model discloses a host computer part is small, light in weight, low-power consumption, with low costs, simple to operate, and human-computer interface operation is friendly. The man-machine conversation window can be used for checking monitoring results and inputting control selection locally in real time or through a remote cloud management and control platform and a mobile terminal, the use cost can be reduced, the working efficiency is improved, and the practicability is good.
Description
Technical Field
The utility model relates to a relevant equipment field of industrial ventilation blower or water pump, concretely relates to monitoring system that is used for the energy efficiency health integration of ventilation blower or water pump.
Background
The ventilator is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air induction of boilers and industrial kilns, cooling and ventilation of air conditioning equipment and household electrical equipment, and the efficiency of the ventilator is an important index for measuring the working energy efficiency of the ventilator; the water pump and the dragging equipment thereof are also main terminal power consumption equipment in China, but the actual operation efficiency of the water pump is not high, so that the water pump has great power saving potential. The operation efficiency of the ventilator or the water pump depends on the operation working condition of the equipment to a great extent, if the operation working condition deviates from the high-efficiency interval, even the high-efficiency ventilator or the water pump cannot achieve the effect of economic operation, the operation state of the ventilator or the water pump is mastered, and the method has very important significance for improving the energy efficiency of the equipment and optimizing the work; in addition, the safety accidents of the ventilator or the water pump caused by improper operation, poor operation and maintenance, quality defects and the like are more, so that the safe and stable operation of equipment is influenced, the operation of the whole system where the ventilator or the water pump is located is also influenced, and great loss is caused to enterprises.
Therefore, the energy efficiency and health integrated measurement function of the ventilator or water pump equipment is important. The energy efficiency analysis comprises the steps of collecting data such as pressure and flow of a central uniform speed pitot tube of an inlet and outlet pipeline of the ventilator by using a pitot tube wind speed and wind quantity measuring instrument, collecting inlet flow data of a water pump by using an electromagnetic flow meter, collecting pressure signals of an inlet and outlet of equipment and electric data of a three-phase multifunctional electric meter for supplying power to the equipment by using a pressure sensor, and carrying out energy efficiency calculation analysis, so that the running condition of the ventilator or the water pump can be comprehensively known; the vibration analysis is to collect vibration signals of running equipment by using a vibration sensor, when the equipment is in an abnormal condition, the vibration is generally increased and changed, such as loose foundation bolts and misaligned bearings, the vibration signals are collected, processed and analyzed, particularly, the frequency spectrum analysis method can completely reflect the characteristics and properties of the vibration, and the causes, the parts and the deterioration degree of hidden trouble can be diagnosed.
At present, generally, an operator needs to manually measure data such as air volume, air pressure and current of the ventilator at various rotating speeds by using various instruments to analyze the energy efficiency data of the ventilator, and then the energy efficiency data of the ventilator is calculated according to the measured data, so that the workload is large, and the efficiency is low; the energy consumption of the energy efficiency in-process monitoring of detecting the water pump under the prior art is higher, and poor stability, the condition that the circuit damaged takes place easily moreover, and the monitoring degree of difficulty is high, is difficult to continuous monitoring. In addition, vibration measuring instruments generally used for vibration data acquisition have the following implementation principle: the vibration data is collected by the vibration meter, and the specific type of the fault is judged by deriving the frequency spectrum through the vibration signal afterwards. The method for analyzing the early-stage hidden danger cannot find the early-stage hidden danger and cannot intervene and eliminate the hidden danger in time. Few vibration meters capable of providing frequency spectrum analysis in real time do not have the functions of alarming and controlling, are lack in timeliness and practicability of equipment protection, and are not beneficial to wide industrial application. Therefore, at present, no energy efficiency and health integrated monitoring system for a ventilator or a water pump exists.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is, overcome not enough among the prior art, provide a monitoring system that is used for the efficiency health integration of ventilation blower or water pump.
In order to achieve the above purpose, the utility model discloses a solution is:
the energy efficiency and health integrated monitoring system for the ventilator or the water pump is provided, wherein a host part comprises a hollow shell for packaging internal components, and the surface of the shell is provided with an opening for embedding a display module; a data processing module, a signal input and output module, a data storage module, a display module, a communication module and a power supply module are arranged in the shell; the data processing module is respectively connected to each module through a signal wire, and the power supply module is used for supplying power to each component; the data processing module is used for analyzing the externally acquired signals and data and sending out control signals according to preset conditions; the signal input and output module is connected with the plurality of signal input and output interfaces through signal lines and is used for transmitting signals and data acquired from the outside to the data processing module and outputting control signals sent by the data processing module to the operation control part of the ventilator or the water pump; the data storage module is used for recording and storing the data generated by the data processing module; the display module is used for displaying the processing result and the alarm information generated by the data processing module in real time to realize man-machine conversation; the communication module is used for data transmission with a remote database server or a mobile terminal to realize data backup and remote monitoring;
the signal input and output interface is connected to the following devices through signal lines:
(1) the RS485 serial port is respectively connected with the three-phase multifunctional ammeter and a vibration sensor arranged on the ventilator or the water pump; the RS485 serial port is also connected to a pitot tube wind speed and wind quantity measuring instrument or an electromagnetic flowmeter, the pitot tube wind speed and wind quantity measuring instrument is connected with a uniform speed pitot tube arranged in the center of an inlet pipeline of the ventilator, and the electromagnetic flowmeter is arranged in the inlet pipeline of the water pump;
(2) the analog quantity input channel AI is connected with a temperature sensor arranged around the running environment of the ventilator or the water pump, a pressure sensor arranged in an outlet pipeline of the ventilator and a pressure sensor arranged in an inlet and outlet pipeline of the water pump;
(3) and the switching value input channel DI, the switching value output channel DO and the analog value output channel AO are respectively connected with a driving motor of the ventilator or the water pump.
As an improvement, the data processing module is a processor CPU.
As an improvement, the data processing module is a processor with model number ARM cortix-A7.
As an improvement, the data storage module is a storage SD card.
As an improvement, the display module is a liquid crystal display screen or an LED display screen, and a plurality of keys are arranged on the surface of the shell in a matching way; or, the display module is a display touch screen.
As an improvement, the communication module is an Ethernet communication module or a wireless 4G communication module.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a host computer part can concentrate each main functional module and settle in a shell, small, light in weight, low-power consumption, with low costs, simple to operate, and human-computer interface is easy to operate.
2. The host part of the utility model is provided with a man-machine conversation window, so that the monitoring result and the input control selection can be checked locally in real time; the operation can be realized through a remote cloud management and control platform or a mobile terminal. Therefore, the use cost can be greatly reduced, the working efficiency is improved, and the practicability is very good.
3. Based on the utility model discloses a monitoring system's further utilization will operate efficiency analysis, vibration frequency spectrum analysis, control function set and be in the same place, but wide application in all kinds of ventilators or water pump equipment have very big suitability. In view of the fact that the operation control principles of the ventilator and the water pump are very similar, the ventilator and the water pump can be installed on site according to the on-site needs only by writing corresponding software function modules and a fault diagnosis and energy efficiency standard knowledge base of the ventilator and the water pump in the data processing module in advance, the model of the integrated machine device does not need to be changed, and the universality is very strong. Therefore, the cost can be greatly reduced no matter production, repair or maintenance.
4. The utility model discloses be equipped with data storage module, can realize local data storage function, need not the networking and just can realize the historical data contrast. Data can be transmitted to the server and the cloud platform through the Ethernet and the wireless function, so that remote monitoring is realized, and the monitoring and diagnosis of the running state of the ventilator or the water pump equipment are effectively realized; by tracking the running state of the equipment in time, the fault problem is found and treated, the service life of the equipment is prolonged, and the industrial production efficiency is improved.
5. The utility model discloses in, can provide equipment operating parameter to operating personnel through the display module, reference data when as ventilation blower equipment output adjustment control.
6. Based on the utility model discloses a monitoring system's further utilization can sample the parameter of ventilation blower exit in real time, carries out online energy efficiency calculation and analysis, can carry out comprehensive understanding to the operational aspect of ventilation blower or water pump from this to obtain the real-time data of ventilation blower efficiency, be used for reporting an emergency and asking for help or increased vigilance in the aspect of process control and to the output adjustment control of equipment better, improve ventilation blower or water pump operating efficiency; the vibration sensor is sampled in real time to acquire vibration signals of running equipment, and relevant parameters are subjected to vibration analysis to monitor the current equipment health condition and whether abnormal conditions occur.
Drawings
Fig. 1 is a topological diagram of the present invention (for a ventilator).
Fig. 2 is a topological diagram of the present invention (for use with a water pump).
Fig. 3 is a signal processing flow chart of the present invention.
Fig. 4 is a view of the bottom interface of the housing of the present invention.
Fig. 5 is a side interface layout of the housing of the present invention.
Reference numbers in the figures: 1, a vibration sensor; 2, a three-phase multifunctional electric meter; 3 pitot tube wind speed and wind volume measuring instrument; 3-1 uniform velocity pitot tube; 4a temperature sensor; 5 switching value input channel DI; 6 switching value output channel DO; 7 analog quantity output channel AO; 8 displaying a touch screen; 9 signal input/output module; 10 a processor CPU; 11 a communication module; 12 a power supply module; 13 a pressure sensor; 14 an electromagnetic flow meter; a 214G antenna interface; 22 a LAN interface; 23 a WAN interface; 24USB interface; 25COM interface; 26 a power indicator light; 27 running an indicator light; 284G communication indicator light; 29DI interface; a 30DO interface; 31RS485 interface; a 32CAN interface; a 33AI interface; a 34AI interface; a 35AO interface; 36SIM card slot; a 37Type-B interface; 3824V power interface.
Detailed Description
First, it should be noted that the present invention relates to computer technology, which is an application of computer technology in the field of industrial control. Will the utility model discloses be applied to the concrete in-process of ventilation blower or water pump equipment running state control, can involve the application of a plurality of software function modules. These software functional modules may include: the system comprises a ventilator fault diagnosis and energy efficiency standard knowledge base embedded in a data storage module, a signal processing module, an analysis and diagnosis module, an operation control module, a cloud management and control platform and the like embedded in a data processing module. The applicant believes that, as a result of a careful reading of the application, an accurate understanding of the principles of the invention as it is being realized and the objects thereof, the skilled person will be fully enabled to practice the invention based on his knowledge of the software programming skills he or she grasps, in combination with the prior art.
It should be noted that the product of the present invention only includes a plurality of hardware structures and interconnections of the host portion, and the software function modules involved in the use process do not belong to the specific scope of the present invention. The application of the present invention will involve the use of software functional modules, but in no way means that these software functional modules also belong to the technical features of the present invention. In particular, the following description is provided for the purpose of describing examples of applications of the product of the present invention, and is not intended to limit the product itself.
A monitoring system for the energy efficiency health integration of ventilation blower or water pump can master running state, energy efficiency analysis, vibration spectrum analysis, the control function of ventilation blower or water pump. The measurement data collected by the main machine part come from a vibration sensor, a three-phase multifunctional electric meter, a pitot tube wind speed and wind quantity measuring instrument, an electromagnetic flowmeter, a pressure sensor, a temperature sensor and a driving motor of a ventilator or water pump device. The vibration sensor is used for realizing real-time monitoring of a three-axial acceleration signal of a ventilator or water pump device (X, Y, Z), and a MEAS 7131A-0050 three-axis vibration acceleration chip produced by the American TE Connectivity can be selected; the pitot tube wind speed and wind volume measuring instrument is used for realizing real-time monitoring of pressure, wind speed and wind volume in an inlet and outlet pipeline, a micro-pressure sensor is adopted, a Bernoulli equation and the pitot tube principle are based, a pressure signal is converted into a wind volume and wind speed signal to be output, and the pitot tube wind speed and wind volume measuring instrument has high accuracy; the electromagnetic flowmeter measures the flow of conducting fluid based on the electromotive force induced when the conducting fluid passes through external magnetic field by means of electromagnetic induction principle.
The data processing module is a processor chip with operation capability, and can select common single-chip microcomputer, CPU and the like (for example, a processor with model number ARM core-A7, running Linux operating system). The data processing module is internally embedded with a calculation software module and is used for converting vibration acceleration data acquired by the vibration sensor into a vibration speed effective value and outputting the vibration speed effective value as a triaxial vibration oscillogram and a spectrogram through Fourier transform, and the data conversion and transformation processes belong to the prior art. For the method of converting the vibration speed into the effective value of the vibration speed, reference may be made to a patent document "method for calculating effective values of the total vibration speed of the whole aircraft engine", which is published in 6 months in 2013; the method for converting and outputting the three-axis vibration oscillogram and the spectrogram can refer to a paper document of 'local fault vibration of a planetary gearbox gear' published in 2 months in 2013; in addition, the energy efficiency calculation of the ventilator can refer to the national standard of 'limited energy efficiency value and energy efficiency grade' of the ventilator published in 10 months in 2009; the energy efficiency calculation of the water pump can refer to the national standard of 'energy efficiency limit value and energy-saving evaluation value of a clean water centrifugal pump' published in 11 months of 2007, and a person skilled in the art can complete corresponding calculation according to the mastered skills and the actual needs.
The signal input and output module is provided with various interfaces for transmitting signals and data acquired from the outside to the data processing module, and outputting control signals sent by the data processing module to an operation control part of the ventilator or water pump equipment, and can be selected from products of SM1200 series of German Siemens company. The optional ethernet communication module of communication module or wireless 4G communication module can be arranged according to ventilation blower or water pump equipment scene and the condition such as database server lectotype is selected, and all can be used to data transfer's wireless communication module the utility model discloses.
The data storage module is used for recording and storing the data generated by the data processing module, and a ventilator or water pump fault diagnosis and energy efficiency standard knowledge base can be built in the data storage module. The ventilator, the water pump fault diagnosis and the energy efficiency standard knowledge base can be selectively configured according to the condition of a specific monitoring object of the ventilator or the water pump equipment, and a plurality of assemblies are incorporated under the condition that the operation load is not increased. For example: (1) summarizing and classifying vibration data (such as frequency, amplitude, proportion, total vibration quantity, speed, displacement data and the like) of product parts of the ventilator or water pump equipment with corresponding types and models in different use states to construct a specific part vibration data assembly; (2) constructing a power supply data component according to specified operating current, voltage, power factor and electric energy grade ranges; (3) summarizing and processing specified energy efficiency limit values and energy efficiency grades of product parts of the corresponding ventilator or water pump equipment in different use states, inlet and outlet pressure and flow in specified operation process parameters and the power supply data to construct an energy efficiency data assembly; (3) constructing an operational data component at a temperature level range within specified operational process parameters; (4) forming a knowledge base component by using fault records covered by historical data and integrating related fault instances; the assembly can cover faults and detection methods of most ventilator or water pump equipment, and the faults and the detection methods are divided into mechanical faults, electrical faults, irregular installation, insufficient maintenance, product element faults, improper use faults and the like.
The database server is installed in the equipment room control center and used for receiving and storing data transmitted by the monitoring system, calling historical data at any time for checking, and providing a data basis for remote monitoring of the cloud management and control platform or the mobile terminal.
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
fig. 1 and 2 show the topological diagrams of the present invention. The measuring device for the energy efficiency and health integration of the ventilator or the water pump comprises a hollow shell for packaging internal components, wherein the surface of the shell is provided with an opening for embedding a display module (a display touch screen 8); a data processing module (a processor CPU10), a signal input and output module 9, a data storage module (a storage SD card), a display module, a communication module 11 and a power supply module 12 are arranged in the shell; the data processing module is respectively connected to each module through a signal wire, and the power supply module 12 is used for supplying power to each component;
the data processing module is internally provided with a signal processing module, an analysis and diagnosis module and an operation control module (all software functional modules) and is used for analyzing externally acquired signals and data and sending out control signals according to preset conditions; the signal input and output module is connected with the plurality of signal input and output interfaces through signal lines and is used for transmitting signals and data acquired from the outside to the data processing module and outputting control signals sent by the data processing module to the operation control part of the ventilator or the water pump equipment; a vibration grading standard and ventilator, water pump fault diagnosis and energy efficiency standard knowledge base is arranged in the data storage module and is used for carrying out comparative analysis on data generated by the recording and storage data processing module; the display module is used for displaying the processing result and the alarm information generated by the data processing module in real time to realize man-machine conversation; the communication module is used for data transmission with a remote database server, a cloud management and control platform or a mobile terminal, and data backup and remote monitoring are achieved. The display module is a display touch screen or a liquid crystal display screen or an LED display screen, and a plurality of keys are arranged on the surface of the shell in a matched manner.
The signal input/output module 9 has at least the following signal input/output interfaces: (1) the RS485 serial port is used for acquiring vibration sensor signals, three-phase multifunctional ammeter data, pitot tube wind speed and wind quantity measuring instrument data connected to a central uniform speed pitot tube of an inlet and outlet pipeline of the ventilator and electromagnetic flowmeter data arranged at the position of the inlet pipeline of the water pump by using a Modbus communication protocol; (2) the analog quantity input channel AI is used for acquiring a temperature sensor signal and a pressure sensor signal; (3) a switching value input channel DI5 for receiving device start-stop status and local automatic status signals; (4) the switching value output channel DO6 is used for outputting signals for controlling the start and stop of the equipment; (5) and the analog quantity output channel AO7 is used for outputting a signal for adjusting the running state of the equipment.
The signal input/output interface 9 is connected to the following devices through signal lines: (1) the RS485 serial port is respectively connected with a three-phase multifunctional electric meter 2, a vibration sensor 1 arranged on a ventilator or water pump equipment, a pitot tube wind speed and wind quantity measuring instrument 3 connected to a uniform speed pitot tube in the center of an inlet and outlet pipeline of the ventilator or an electromagnetic flowmeter 14 arranged at the position of the inlet pipeline of the water pump; (2) the analog input channels AI are respectively arranged on the pressure sensors 13 of the inlet and outlet pipelines and the temperature sensor 4 for monitoring the environmental temperature; (3) the drive motor of the ventilator or water pump device is connected with a switching value input channel DI5, a switching value output channel DO6 and an analog value output channel AO7 respectively.
The energy efficiency and health integrated measurement method for the ventilator or the water pump based on the monitoring system comprises the following steps:
(1) a plurality of vibration sensors 1 are arranged on a ventilator or water pump device, and vibration acceleration signals of the ventilator or water pump device are obtained, wherein the vibration acceleration signals comprise vibration effective values and frequency spectrum original data of three directional shafts; collecting parameters of a three-phase multifunctional electricity meter 2 for supplying power to a ventilator or water pump device, wherein the parameters comprise current, voltage, power factor and electric energy data; collecting data of a pitot tube wind speed and wind quantity measuring instrument connected with a central uniform-speed pitot tube 3 of an inlet pipeline of the ventilator and data of an electromagnetic flowmeter 14 of an inlet pipeline of the water pump equipment, wherein the data comprise stagnation volume flow and inlet pressure data of the inlet of the ventilator, flow data of the water pump pipeline and inlet and outlet pressure data; and acquiring operating environment temperature signals of ventilator or water pump equipment.
(2) The signal processing module carries out fast Fourier transform operation on the vibration signal, obtains frequency, amplitude, proportion, total vibration quantity, speed and displacement data through further calculation after obtaining frequency spectrum data, and stores the data in the data storage module; after the data taken from the three-phase multifunctional electric meter 2, the data of the pitot tube wind speed and wind quantity measuring instrument 3, the data of the electromagnetic flowmeter 14 and the signal of the pressure sensor 13 are processed, energy efficiency data obtained after energy efficiency calculation of a ventilator or a water pump is carried out are stored in a data storage module; meanwhile, data of the temperature sensor of the operating environment is acquired and stored in a data storage module; and when data storage is carried out, the data are displayed in a display module in the form of real-time numerical values and trend graphs;
the fast fourier transform FFT is an algorithm for an efficient and fast calculation method using a computer to calculate the discrete fourier transform DFT, and its basic idea is to decompose the original N-point sequence, where N is the sampling rate, into a series of short sequences in turn. The symmetrical property and the periodic property of the exponential factors in the DFT calculation formula are fully utilized, and then the DFTs corresponding to the short sequences are calculated and combined properly, so that the aims of deleting repeated calculation, reducing multiplication and simplifying the structure are fulfilled. When N is 1024, the operation amount is only 10240 times, which is 1% of the DFT direct algorithm 1048576 times, and the more the number of points, the greater the saving of the operation amount, which is the superiority of FFT.
(3) The analysis and diagnosis module extracts the stored data, and performs vibration analysis and energy efficiency analysis and comparison with data in a ventilator or water pump fault diagnosis and energy efficiency standard knowledge base to obtain energy efficiency analysis and health diagnosis results; displaying the result in real time by using a display module, and sending out real-time early warning or alarm according to a preset fault condition;
(4) based on the energy efficiency safety analysis and the safety diagnosis result, the operation control module outputs a control signal to a driving motor of the ventilator or the water pump equipment according to a preset control rule so as to control the start and stop of the equipment; meanwhile, according to preset process control requirements, logical operation and PID operation are carried out by using current flow temperature data, and a control signal is output to a driving motor of the equipment according to an operation result to adjust the running state of the equipment, so that the integrated measurement of the energy efficiency safety and health of the ventilator or the water pump is realized.
Furthermore, the communication module can be used for transmitting the stored data, the energy efficiency safety and health analysis and the safety diagnosis result to a remote database server, a cloud management and control platform or a mobile terminal, so that data backup and remote monitoring are realized; the communication module is used for transmitting the control command sent by the cloud management and control platform or the mobile terminal to the data processing module in a wired or wireless transmission mode, and the operation control module sends a control signal to control the equipment to start and stop or adjust the running state of the equipment, so that the running state of the equipment is monitored.
The following are specific examples of the integrated device of the present invention:
the technical idea of the utility model is that: the integrated device is used for acquiring signals of the vibration sensor through a Modbus communication protocol, carrying out fast Fourier transform on the signals to obtain frequency spectrum data, acquiring data such as current and electric energy of the three-phase multifunctional electric meter, acquiring inlet pressure and flow of a pitot tube wind speed and wind quantity measuring instrument, acquiring flow data of an electromagnetic flowmeter, acquiring pressure signals of an inlet and outlet pipeline pressure sensor, and carrying out energy efficiency calculation on a ventilator or a water pump to obtain operation energy efficiency data; and acquiring a temperature sensor signal through an analog quantity channel, and displaying a vibration effective value, frequency spectrum data, current, electric energy, inlet and outlet pressure, flow, energy efficiency, temperature and the like on the touch screen. And then, carrying out data operation in the device, converting an operation result into an output signal to control the start and stop of the equipment, and adjusting the running state of the equipment. An alarm threshold value can be set in the device, and alarm content is displayed on the touch screen when the vibration related data, the energy efficiency related data and the current temperature value exceed the set threshold value. The data can be stored locally to realize historical data comparison, and the data can be transmitted to a server and a cloud platform through Ethernet and wireless functions to be further analyzed and processed, so that remote monitoring is realized.
In order to achieve the purpose, the device designed by the applicant is in a cuboid shape, a plurality of signal input and output interfaces are designed on a shell, a touch screen is arranged right in front of the shell, and all other components are packaged in the shell. The functions of signal input and output, data processing and analysis, data storage, data display, alarm and wired and wireless data transmission are realized.
The specific description is as follows:
the signal input interface comprises 2 RS485 serial ports 31, and Modbus RTU and Modbus TCP communication can be achieved. Through a first RS485 serial ports, RS485 vibration sensor 1's signal is gathered to Modbus RTU communication protocol, to installing a plurality of vibration sensors on same ventilation blower or water pump equipment, can adopt the polling mode to gather one by one, and the signal of gathering includes the vibration effective value and the spectrum raw data of three direction axle. The vibration data are stored in the SD card, fast Fourier transform operation is carried out on the vibration data in real time in the CPU of the processor to obtain frequency spectrum data, and the frequency spectrum data are displayed on the touch screen in a waveform format. Particularly, the frequency spectrum data can be further calculated through various algorithms to obtain various data such as frequency, amplitude, ratio, total vibration quantity, speed, displacement and the like, so that the running state of the equipment can be diagnosed more accurately and comprehensively. All algorithms have mature codes and templates, are made into modularized embedding, and are very convenient to maintain and update in the later period. And electrical parameters such as equipment operating current, voltage, power factor, electric energy and the like measured by the three-phase multifunctional ammeter 2 are acquired through a second RS485 serial port and a Modbus RTU communication protocol, meanwhile, the inlet and outlet pressure and inlet stagnation volume flow data of the pitot tube wind speed and wind volume measuring instrument 3 are acquired, the flow data of the electromagnetic flowmeter are acquired, the pressure signal of the pressure sensor is acquired, and the energy efficiency of the ventilator or the water pump is calculated in real time in the CPU of the processor to obtain operating energy efficiency data. The data are stored in the SD card, and the current data and the trend graph can be displayed on the touch screen. The vibration sensor, the three-phase multifunctional ammeter data, the pitot tube wind speed and wind quantity measuring instrument and the electromagnetic flow counting data are collected by two RS485 serial ports, 9600/19200/57600/115200bps baud rate is supported, the collection speed is greatly increased, and the signal interference influence is reduced.
The AI channels 33, 34 collect 4-20mA current signals of the pressure sensor, can be configured as 0-20mA, 0-5V channels as required, collect resistance signals of the temperature sensor, and can be PT100 or PT 1000. The actual pressure of the medium at the inlet and the outlet of the equipment and the actual temperature of the operating environment are obtained after the signals are preprocessed, and the current values of the pressure and the temperature and a trend chart are displayed on the touch screen 8. The DI channel 5 is used for collecting state signals of starting and stopping of the ventilator or water pump equipment, manual and automatic modes and the like, the state signals and the temperature signals are combined in an ARM11 processor for processing and analysis, and the operation results are obtained by applying logical operation and PID algorithm, and control signals are output through a DO channel 6 and an AO channel 7 and are used for starting and stopping the equipment and adjusting the running state of the equipment. The signal input and output functions are all provided with mature controller circuit boards, and the detailed description is omitted here.
And setting an alarm threshold value on the touch screen 8, and displaying alarm content on the touch screen 8 when the vibration related data, the energy efficiency data and the current temperature value exceed the set threshold value. And an 8G storage SD card 9 is adopted to store the acquired original signals and the processed and analyzed data, and is used for checking historical data, historical trends of the running state of the equipment and comparing the historical trends with a cloud knowledge base. The communication module 11 comprises an Ethernet module and a 4G module, the Ethernet interface is a 2-way 10M/100Mbps self-adaptive Ethernet interface, and data is transmitted outwards in a wired mode; the 4G interface is a full-network communication (mobile, Unicom, telecommunication) 4G interface and transmits data to the outside in a wireless mode. The touch screen adopts a multi-page switching mode for display, and the data storage adopts a mode of covering the oldest data with the latest data, so that the size of the device is reduced, and the weight of the device is reduced. And a system time and system time setting function can be provided, so that historical data can be conveniently checked and compared.
As shown in fig. 3, which is a signal flow chart of the present invention, signals and data obtained in the data acquisition stage are first stored in the SD card, and the preprocessed signals, temperature, flow rate, current, etc. can be directly displayed on the touch screen. And performing fast Fourier transform and other operations on the vibration data, and displaying the operation result on the touch screen. And after a part of data is processed, analyzed and logically operated, the operation result is output as a control signal. And finally, the data in the memory is transmitted to the server and the cloud platform at any time by using an Ethernet protocol or a 4G technology for further analysis and processing, and the remote operation diagnosis and monitoring of the ventilator or the water pump equipment are realized by combining with the knowledge of a cloud platform expert base.
As shown in fig. 4, the shell interface of the present invention is shown, and 21 is a 4G antenna interface, which can strengthen wireless signals in a weak wireless signal environment, thereby effectively preventing unstable or interrupted wireless communication. And 22, a LAN port through which data can be transmitted to a server, and the server collects a plurality of data of the invention to realize centralized management and monitoring of equipment. The interface 23 is WAN interface, connect the personal notebook computer through WAN interface, debug and dispose the configuration of the invention easily with Web browser, such as address, baud rate parameter of Modbus communication protocol, can dispose AI electric current or voltage input, two-wire system connection or three-wire system connection, etc. 24 is a USB interface, and a USB disk is inserted to directly import the version update file of the device, so that the software version update work of later maintenance is very convenient. 25 and 37 are respectively a Com interface and a Type-B interface, and can be connected with various external devices, such as a printer and a projector. 26. 27, 28 are power, operation, 4G communication pilot lamp, can concisely look over its operating condition when the device debugs in earlier stage and later maintenance. 29. 30, 31, 33, 34 and 35 are various data acquisition and output interfaces. And 32 is a CAN port used for post module expansion to realize more complex control functions. And 36 is a 4G SIM card slot for inserting a SIM card to realize 4G functions. 38 is the device power port and requires 24VDC power.
Finally, it should be noted that the above-mentioned embodiments illustrate only specific embodiments of the invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (6)
1. A monitoring system for energy efficiency and health integration of a ventilator or a water pump is characterized in that a host machine part comprises a hollow shell for packaging internal components, and the surface of the shell is provided with an opening for embedding a display module; the device is characterized in that a data processing module, a signal input and output module, a data storage module, a display module, a communication module and a power supply module are arranged in the shell; the data processing module is respectively connected to each module through a signal wire, and the power supply module is used for supplying power to each component;
the data processing module is used for analyzing the externally acquired signals and data and sending out control signals according to preset conditions;
the signal input and output module is connected with the plurality of signal input and output interfaces through signal lines and is used for transmitting signals and data acquired from the outside to the data processing module and outputting control signals sent by the data processing module to the operation control part of the ventilator or the water pump;
the data storage module is used for recording and storing the data generated by the data processing module;
the display module is used for displaying the processing result and the alarm information generated by the data processing module in real time to realize man-machine conversation;
the communication module is used for data transmission with a remote database server or a mobile terminal to realize data backup and remote monitoring;
the signal input and output interface is connected to the following devices through signal lines:
(1) the RS485 serial port is respectively connected with the three-phase multifunctional ammeter and a vibration sensor arranged on the ventilator or the water pump; the RS485 serial port is also connected to a pitot tube wind speed and wind quantity measuring instrument or an electromagnetic flowmeter, the pitot tube wind speed and wind quantity measuring instrument is connected with a uniform speed pitot tube arranged in the center of an inlet pipeline of the ventilator, and the electromagnetic flowmeter is arranged in the inlet pipeline of the water pump;
(2) the analog quantity input channel AI is connected with a temperature sensor arranged around the running environment of the ventilator or the water pump, a pressure sensor arranged in an outlet pipeline of the ventilator and a pressure sensor arranged in an inlet and outlet pipeline of the water pump;
(3) and the switching value input channel DI, the switching value output channel DO and the analog value output channel AO are respectively connected with a driving motor of the ventilator or the water pump.
2. The monitoring system of claim 1, wherein the data processing module is a processor CPU.
3. The monitoring system of claim 1, wherein the data processing module is a processor model number ARM cortix-a 7.
4. The monitoring system of claim 1, wherein the data storage module is a storage SD card.
5. The monitoring system of claim 1, wherein the display module is a liquid crystal display or an LED display, and a plurality of keys are provided on a surface of the housing; or, the display module is a display touch screen.
6. The monitoring system of claim 1, wherein the communication module is an ethernet communication module or a wireless 4G communication module.
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| CN112611413A (en) * | 2020-12-23 | 2021-04-06 | 杭州展德软件技术有限公司 | Energy efficiency and health integrated monitoring method and device for ventilator or water pump |
| CN116201710A (en) * | 2022-12-15 | 2023-06-02 | 东北林业大学 | Variable Mechanism Controller of Axial Piston Pump Based on Deep Learning |
| CN117387697A (en) * | 2023-12-11 | 2024-01-12 | 天津市北洋水运水利勘察设计研究院有限公司 | Data acquisition monitoring method and system for heavy machine track |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112611413A (en) * | 2020-12-23 | 2021-04-06 | 杭州展德软件技术有限公司 | Energy efficiency and health integrated monitoring method and device for ventilator or water pump |
| CN112611413B (en) * | 2020-12-23 | 2024-12-03 | 杭州展德软件技术有限公司 | Energy efficiency and health integrated monitoring method and device for fans or water pumps |
| CN116201710A (en) * | 2022-12-15 | 2023-06-02 | 东北林业大学 | Variable Mechanism Controller of Axial Piston Pump Based on Deep Learning |
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| CN117387697A (en) * | 2023-12-11 | 2024-01-12 | 天津市北洋水运水利勘察设计研究院有限公司 | Data acquisition monitoring method and system for heavy machine track |
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| CN118148903A (en) * | 2024-02-23 | 2024-06-07 | 武汉理工大学 | A performance detection system and method for automobile electronic water pump |
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