CN111366781A - Equipment working condition and yield monitoring system and monitoring method thereof - Google Patents
Equipment working condition and yield monitoring system and monitoring method thereof Download PDFInfo
- Publication number
- CN111366781A CN111366781A CN202010313310.4A CN202010313310A CN111366781A CN 111366781 A CN111366781 A CN 111366781A CN 202010313310 A CN202010313310 A CN 202010313310A CN 111366781 A CN111366781 A CN 111366781A
- Authority
- CN
- China
- Prior art keywords
- equipment
- microcontroller
- working condition
- yield
- monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
- G01R15/202—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using Hall-effect devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a system for monitoring the working condition and the yield of equipment, which comprises a microcontroller, a conversion module, a wireless data transmission terminal and a server, wherein the conversion module is connected with the microcontroller and is used for converting the current of the monitored equipment into an analog voltage output signal, the wireless data transmission terminal is connected with the microcontroller, and the server is in communication connection with the wireless data transmission terminal. The equipment working condition and yield monitoring system can accurately acquire the equipment working condition and yield by monitoring the current signal of the equipment, and can monitor the equipment working condition and yield in real time, so that the fault equipment can be found in time and maintained in time, the production abnormal time driven by the equipment fault is reduced, and the production efficiency of the equipment is improved. The device yield is sent to the server through wireless communication, the yield of the device can be remotely obtained, and data checking and statistics are convenient to carry out.
Description
Technical Field
The invention relates to the technical field of equipment working condition monitoring, in particular to an equipment working condition and yield monitoring system.
Background
The working condition refers to the state of production operation of production equipment and facilities. Along with the development of society, the equipment that uses in the life production is more and more extensive, and the operating condition of equipment can direct influence the work efficiency of equipment, consequently needs monitor the operating condition of equipment in time. In many trades of prior art, point examining equipment is a system to equipment management, can know the state and the operating mode of equipment through point examining to can discover the equipment that has a fault and latent equipment trouble, thereby can maintain the maintenance to the equipment that has the problem, and then reduce the probability of the emergence of equipment accident, promote equipment production efficiency, extension equipment life etc..
However, the following disadvantages exist in monitoring the working condition of the equipment by a point inspection mode: the error of point inspection data is large, and the real-time monitoring of the working condition of the equipment cannot be realized by the traditional point inspection.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a system for monitoring the working condition of equipment and the working condition and the yield of the equipment, wherein the working condition and the monitoring error of the equipment are small.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides an equipment operating mode and output monitoring system, includes microcontroller, is connected with microcontroller and is used for converting the current of monitoring equipment into analog voltage output signal's conversion module, the wireless data transmission terminal who is connected with microcontroller, with wireless data transmission terminal communication connection's server. Among the above technical scheme, conversion module one end is connected with the monitored equipment electricity and is converted the current signal of monitored equipment into analog voltage output signal, conversion module transmits analog voltage output signal to microcontroller, microcontroller can be according to the analog voltage output signal of inside timer timing acquisition conversion module, and convert analog voltage output signal into the effective current value through analog-to-digital converter, thereby obtain the change curve of effective current, again with the equipment characteristic current oscillogram of predetermineeing and the change curve of effective current compare, thereby can monitor equipment's operating mode. The equipment working condition monitored by the microcontroller is transmitted to the server through the wireless data transmission terminal, so that a worker can conveniently monitor the equipment working condition in real time. Thereby further monitoring equipment operating mode through the current signal who gathers monitored equipment, can monitor the equipment operating mode more accurately. The server can receive the data transmitted by a plurality of wireless data transmission terminals simultaneously, so that the working conditions of a plurality of devices can be monitored, and each device is connected with a corresponding conversion module.
Preferably, the microcontroller is connected with the wireless data transmission terminal through an RS232 serial port. In the above technical scheme, the RS-232 standard interface is one of the commonly used serial communication interface standards, and the serial port of the microcontroller is electrically connected with the RS232 serial port. The microcontroller is connected with the wireless data transmission terminal through the RS232 serial port, so that the microprocessor transmits the working condition of the equipment to the wireless data transmission terminal through the RS232 serial port, and then transmits the working condition of the equipment to the server through the wireless data transmission terminal.
Preferably, the conversion module comprises a current transformer connected with the monitored equipment and a hall sensor connected with the current transformer, and the hall sensor is connected with the microcontroller. In the above technical scheme, the production equipment generally supplies power for 220V/380V ac, the current value is also large, the current transformer converts a large primary side current connected with the equipment end into a small secondary side current connected with the hall sensor according to the electromagnetic induction principle, and transmits the small secondary side current to the hall sensor, so that the hall sensor generates an analog voltage output signal and transmits the analog voltage output signal to the analog-to-digital converter of the microcontroller.
Preferably, the primary side winding of the current transformer is connected with the device to be tested, the secondary side winding of the current transformer is connected with the input end of the hall sensor, and the output end of the hall sensor is connected with the microcontroller.
Preferably, the microcontroller is further connected with a nixie tube. In the technical scheme, the effective current curve and the characteristic current oscillogram are displayed through the nixie tube, so that the working condition of the monitored equipment can be visually observed through comparison.
Preferably, the microcontroller comprises an STM8F103 processor. Among the above technical scheme, STM8F103 treater is from taking timer and digital-to-analog conversion to can be according to the analog voltage output signal of the inside timer timing acquisition hall sensor of treater, and convert analog voltage output signal into the effective current value through analog-to-digital conversion, thereby obtain the change curve of effective current, compare the change curve of equipment characteristic current oscillogram and effective current that predetermine again.
Preferably, the hall sensor comprises an ACS712 chip. In the above technical solution, the first pin and the second pin of the ACS712 chip are electrically connected to one end of the secondary side small current winding of the current transformer, the third pin and the fourth pin of the ACS712 chip are electrically connected to the other end of the secondary side small current winding of the current transformer, and the seventh pin of the ACS712 chip is an analog voltage output pin and is connected to the STM8F103 processor. The ACS712 chip includes a resistor RF and a buffer amplifier, so that the sixth pin of the ACS712 chip is externally connected to a capacitor CF and forms a simple RC low pass filter with the resistor RF, and since the internal buffer amplifier of the ACS712 chip can eliminate output attenuation caused by voltage division of the internal resistor and the interface load of the chip, the RC low pass filter does not affect signal attenuation, and can further reduce output noise and improve accuracy. The response time of the ACS712 chip is shortened by more than two times compared with that of a common device, so that the working efficiency of the equipment working condition and yield monitoring system is improved.
Preferably, the equipment working condition and yield monitoring system further comprises a client end in communication connection with the server. In the technical scheme, the user can conveniently acquire the monitoring condition of the equipment from the server through the client.
The patent also discloses a monitoring method of the equipment working condition and output monitoring system, which is applied to the equipment working condition and output monitoring system and comprises the following steps: s1, converting the current of the monitored equipment into an analog voltage output signal of 0-5V through a current transformer and a Hall sensor; s2, the microcontroller samples the analog voltage output signal at regular time through the internal timer, converts the analog voltage output signal into a digital current signal through the analog-to-digital converter in the microcontroller, and obtains an effective current value through calculation, wherein the calculation formula is as follows:
wherein XrmsIs the effective value of the current, N is the number of sampling times, xNThe sampling value of the Nth time; and S3, comparing the waveform change diagram of the effective current value with the characteristic waveform of the monitored equipment to obtain the working condition of the monitored equipment, and counting the times of the change waveform of the effective current value passing through the characteristic waveform of the monitored equipment to obtain the output of the monitored equipment.
Further, a change curve of the monitored effective current value is processed by a self-adaptive peak identification method, and the self-adaptive peak identification method comprises the following steps: smoothing the waveform of the change curve of the effective current value, comparing the waveform with a base line obtained by first-order low-pass filtering to obtain a peak characteristic value of the change curve of the effective current value, then removing some jitters and small-amplitude oscillation by comparing with a relative threshold value, and further screening the change curve of the effective current value on the time width of a peak to ensure the accuracy of peak identification. And obtaining a change curve of the effective current value with higher accuracy by iteratively using a self-adaptive peak identification method.
Preferably, the monitoring method of the equipment working condition and yield monitoring system further includes step S4, step S4 is that the microcontroller is connected with the wireless data transmission terminal through an RS232 serial port, the microcontroller transmits the working condition of the monitored equipment to the server through the wireless data transmission terminal, and the server transmits the working condition of the monitored equipment to the client. Therefore, the user can conveniently acquire the monitoring condition of the equipment from the server through the client.
The invention has the beneficial effects that:
the equipment working condition and yield monitoring system can accurately acquire the equipment working condition by monitoring the current signal of the equipment, and can monitor the equipment working condition in real time, so that the fault equipment can be found in time and the equipment can be maintained and repaired in time, the production abnormal time driven by the equipment fault is reduced, and the production efficiency of the equipment is improved.
Drawings
FIG. 1 is a system block diagram of an equipment condition and production monitoring system of the present invention;
FIG. 2 is a schematic circuit diagram of a conversion module of the plant condition and production monitoring system of the present invention;
fig. 3 is a graph comparing a waveform change of an effective current value of the present invention with a characteristic waveform of a monitored device.
In the figure: 1. microcontroller, 2, monitored equipment, 3, conversion module, 31, current transformer, 32, hall sensor, 4, wireless data transmission terminal, 5, server, 6, RS232 serial ports, 7, charactron, 8, customer end.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
As shown in fig. 1-3, the system for monitoring the operating condition and the yield of the device according to the present embodiment includes a microcontroller 1, a conversion module 3 connected to the microcontroller 1 and configured to convert the current of the monitored device 2 into an analog voltage output signal, a wireless data transmission terminal 4 connected to the microcontroller 1, and a server 5 in communication connection with the wireless data transmission terminal 4.
In this embodiment, the microcontroller 1 is connected to the wireless data transmission terminal 4 through the RS232 serial port 6.
In this embodiment, the conversion module 3 includes a current transformer 31 connected to the monitored device 2 and a hall sensor 32 connected to the current transformer 31, and the hall sensor 32 is connected to the microcontroller 1.
In this embodiment, the primary winding of the current transformer 31 is connected to the device under test, the secondary winding of the current transformer 31 is connected to the input terminal of the hall sensor 32, and the output terminal of the hall sensor 32 is connected to the microcontroller 1.
In this embodiment, the microcontroller 1 is further connected to a nixie tube 7.
In this embodiment, the microcontroller 1 includes an STM8F103 processor.
In the present embodiment, the hall sensor 32 includes an ACS712 chip.
In this embodiment, the system for monitoring the working condition and the yield of the equipment further includes a client 8 in communication connection with the server 5.
The embodiment also discloses a monitoring method of the equipment working condition and output monitoring system, which is applied to the equipment working condition and output monitoring system and comprises the following steps: s1, converting the current of the monitored equipment into an analog voltage output signal of 0-5V through a current transformer and a Hall sensor; s2, the microcontroller samples the analog voltage output signal at regular time through the internal timer, converts the analog voltage output signal into a digital current signal through the analog-to-digital converter in the microcontroller, and obtains an effective current value through calculation, wherein the calculation formula is as follows:
wherein XrmsIs the effective value of the current, N is the number of sampling times, xNThe sampling value of the Nth time; and S3, comparing the waveform change diagram of the effective current value with the characteristic waveform of the monitored equipment to obtain the working condition of the monitored equipment, and counting the times of the change waveform of the effective current value passing through the characteristic waveform of the monitored equipment to obtain the output of the monitored equipment.
In this embodiment, the monitoring method of the equipment condition and yield monitoring system further includes step S4, in step S4, the microcontroller is connected with the wireless data transmission terminal through an RS232 serial port, the microcontroller transmits the condition of the monitored equipment to the server through the wireless data transmission terminal, and the server transmits the condition of the monitored equipment to the client.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Simple substitutions without changing the inventive content of the present invention are considered to be the same. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides an equipment operating mode and output monitoring system, its characterized in that includes microcontroller (1), is connected with microcontroller (1) and is used for converting the electric current of being monitored equipment (2) into analog voltage output signal's conversion module (3), wireless data transmission terminal (4) of being connected with microcontroller (1), server (5) with wireless data transmission terminal (4) communication connection.
2. The equipment working condition and yield monitoring system according to claim 1, wherein the microcontroller (1) is connected with the wireless data transmission terminal (4) through an RS232 serial port (6).
3. The system for monitoring the working condition and the yield of the equipment according to claim 1 or 2, wherein the conversion module (3) comprises a current transformer (31) connected with the monitored equipment (2) and a Hall sensor (32) connected with the current transformer (31), and the Hall sensor (32) is connected with the microcontroller (1).
4. A system for monitoring the operation and production of a device according to claim 3, characterized in that the primary winding of the current transformer (31) is connected to the device under test, the secondary winding of the current transformer (31) is connected to the input of the hall sensor (32), and the output of the hall sensor (32) is connected to the microcontroller (1).
5. An equipment condition and production monitoring system according to claim 1, 2 or 4, characterized in that the microcontroller (1) is further connected with a nixie tube (7).
6. A plant condition and production monitoring system according to claim 5, wherein the microcontroller (1) comprises an STM8F103 processor.
7. The system according to claim 4 or 6, wherein the Hall sensor (32) comprises an ACS712 chip.
8. An equipment condition and production monitoring system according to claim 7, further comprising a client (8) communicatively connected to the server (5).
9. A monitoring method of a system for monitoring the working condition and the yield of equipment, which is applied to the system for monitoring the working condition and the yield of the equipment as claimed in claim 8, and comprises the following steps:
s1, converting the current of the monitored equipment into an analog voltage output signal of 0-5V through a current transformer and a Hall sensor;
s2, the microcontroller samples the analog voltage output signal at regular time through the internal timer, converts the analog voltage output signal into a digital current signal through the analog-to-digital converter in the microcontroller, and obtains an effective current value through calculation, wherein the calculation formula is as follows:
wherein XrmsIs the effective value of the current, N is the number of sampling times, xNThe sampling value of the Nth time;
and S3, comparing the waveform change diagram of the effective current value with the characteristic waveform of the monitored equipment to obtain the working condition of the monitored equipment, and counting the times of the change waveform of the effective current value passing through the characteristic waveform of the monitored equipment to obtain the output of the monitored equipment.
10. The monitoring method of the equipment condition and yield monitoring system according to claim 9, further comprising step S4, in which step S4 is that the microcontroller is connected to the wireless data transmission terminal through an RS232 serial port, the microcontroller transmits the condition of the monitored equipment to the server through the wireless data transmission terminal, and the server transmits the condition of the monitored equipment to the client.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010313310.4A CN111366781A (en) | 2020-04-20 | 2020-04-20 | Equipment working condition and yield monitoring system and monitoring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010313310.4A CN111366781A (en) | 2020-04-20 | 2020-04-20 | Equipment working condition and yield monitoring system and monitoring method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111366781A true CN111366781A (en) | 2020-07-03 |
Family
ID=71209472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010313310.4A Pending CN111366781A (en) | 2020-04-20 | 2020-04-20 | Equipment working condition and yield monitoring system and monitoring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111366781A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030563A (en) * | 2021-02-24 | 2021-06-25 | 树根互联股份有限公司 | Energy efficiency conversion equipment and method |
-
2020
- 2020-04-20 CN CN202010313310.4A patent/CN111366781A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030563A (en) * | 2021-02-24 | 2021-06-25 | 树根互联股份有限公司 | Energy efficiency conversion equipment and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101581748B (en) | Zinc oxide arrester on-line monitoring system | |
| CN201886066U (en) | Transformer core grounding current monitor | |
| CN213986651U (en) | Multi-state online monitoring system for lightning arrester | |
| CN205333845U (en) | Online error testing arrangement of electric energy meter | |
| CN102721890A (en) | Practical monitoring device for virtual terminal power grid | |
| CN111366781A (en) | Equipment working condition and yield monitoring system and monitoring method thereof | |
| CN115407255A (en) | Current transformer error online monitoring device and method | |
| WO2014107984A1 (en) | Novel intelligent transformer and application method therefor | |
| CN115792708B (en) | SPD online aging monitoring system and method | |
| CN212646802U (en) | Equipment working condition and yield monitoring system | |
| CN202693764U (en) | Circuit breaker failure diagnosis device based on circuit breaker dynamic characteristic tester | |
| CN115684717A (en) | High-voltage line harmonic detection device and method based on electric field coupling | |
| CN209979734U (en) | Power consumption detection system | |
| CN103278676A (en) | Electric current true virtual value detection circuit of electromotor soft starter | |
| CN109085470A (en) | A kind of arc light sensor device and equipment health status judgment method | |
| CN113834965A (en) | Ripple voltage measuring device and method | |
| CN210515633U (en) | Multifunctional portable relay protection test platform | |
| CN102164014B (en) | Radio frequency index testing method and system | |
| CN211348414U (en) | Induction electricity-taking electric temperature monitoring device | |
| CN212008830U (en) | Input power supply detection circuit and input power supply detection equipment | |
| CN110829598B (en) | Thing networking power conversion equipment | |
| CN209690433U (en) | A kind of faulty insulator measuring device | |
| CN111351994B (en) | System for realizing automatic test for wireless charging device and corresponding method | |
| CN112557741A (en) | Secondary voltage detection device and detection method for voltage transformer | |
| CN213781811U (en) | Three-phase balancing device of transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |