CN211652988U - Large-scale instrument working condition monitoring device - Google Patents
Large-scale instrument working condition monitoring device Download PDFInfo
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- CN211652988U CN211652988U CN201922132987.3U CN201922132987U CN211652988U CN 211652988 U CN211652988 U CN 211652988U CN 201922132987 U CN201922132987 U CN 201922132987U CN 211652988 U CN211652988 U CN 211652988U
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Abstract
The utility model discloses a working condition monitoring device for a large instrument, which comprises a device body, wherein the device body is provided with a semi-open structure, and is sleeved on a power line of the large instrument through the semi-open structure; and the bottom of the semi-open structure is provided with an electromagnetic induction coil which is electrically connected with the data processing module. The utility model discloses can solve its use machine time statistics problem under the condition of not destroying large-scale instrument power cord.
Description
Technical Field
The utility model belongs to the technical field of the large-scale instrument management in laboratory, specifically be a large-scale instrument operating mode monitoring devices.
Background
The statistics of the usage time of large instrumentation in a laboratory play a significant role in the management and maintenance of laboratory equipment. The time utilization rate of the instrument and the equipment is an important index reflecting the use condition of the instrument and the equipment, and can be used as an important basis for evaluating the management level of the instrument and the equipment. Through counting and analyzing the time-of-use rate of the instrument and equipment, scientific basis can be provided for reasonably configuring large-scale scientific instrument and equipment, the management level can be improved, the use benefit of the large-scale scientific instrument and equipment can be better played, and the development of science and technology and economic construction is promoted. In early times, many laboratories adopted the simplest method of counting by means of manual registration with instruments, and the method was inefficient and unable to meet the requirements of fine management. The other method is to use the record storage built in the instrument device for statistics, but the method lacks universality, not all instrument devices have self-contained storage, and the storage modes are not consistent. At present, a common laboratory adopts a method for counting the entrance guard card in the machine time, but the time for counting the entrance guard is not completely consistent with the time for actually using instruments and equipment, and only a certain person using the instruments and equipment enters the laboratory, so that the accuracy is not high.
Based on the current situation of machine-hour statistics, it has been proposed to measure the service time of various instruments and devices by using a current detection method, such as a large-scale instrument using machine-hour collection controller (publication No. CN104007680B), but this measurement method is to separately detect the live wire, zero wire or ground wire in the power line, which damages the wires of the instruments and devices, and for large-scale instruments, the wires are also expensive and not easy to damage, so it is necessary to provide a machine-hour statistics method to perform machine-hour statistics without damaging the wires of the large-scale instruments.
Disclosure of Invention
The utility model aims at providing a large-scale instrument operating mode monitoring devices to the problem that prior art exists for under the condition of not destroying large-scale instrument power cord, statistics problem when solving its use machine.
In order to achieve the above object, the utility model adopts the following technical scheme:
the working condition monitoring device for the large instrument comprises a device body, wherein the device body is provided with a half-opening structure, and the device body is sleeved on a power supply line of the large instrument through the half-opening structure; and the bottom of the semi-open structure is provided with an electromagnetic induction coil which is electrically connected with the data processing module.
Preferably, the half-opening structure is an arc-shaped groove, the bottom of the arc-shaped groove is provided with an electromagnetic induction coil, a data processing module is arranged in the arc-shaped groove, and two sides of the arc-shaped groove are hinged with a first movable cover plate and a second movable cover plate.
Preferably, the bottom of the arc-shaped groove is provided with two electromagnetic induction coils, and the two electromagnetic induction coils are electrically connected with the data processing module after being connected in series.
Preferably, the first movable cover plate and the second movable cover plate are provided with mutually matched clamping pieces for fixing the monitoring device and a large instrument power line together.
Preferably, the device body is provided with an indicator light, and the indicator light is electrically connected with the data processing module.
Preferably, the data processing module comprises a power detection module, a single chip microcomputer and a communication module, wherein the electromagnetic induction coil is electrically connected with the power detection module, the power detection module is connected with the single chip microcomputer, and the single chip microcomputer is connected with the communication module.
Preferably, the power detection module includes a voltage sensing unit and a current sensing unit.
Preferably, the data processing module further includes an interference elimination module, the interference elimination module is connected to the power detection module, and the interference elimination module is internally provided with an executable program for eliminating common mode interference and conducted interference.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a large-scale instrument operating mode monitoring devices, produce the principle of alternating electric field based on alternating magnetic field, utilize the produced unbalanced magnetic field of commercial power load on the power cord to detect power change, under the condition that does not destroy large-scale instrument power cord, establish monitoring devices on the power cord of large-scale instrument through half open structure cover, the electromagnetic induction coil that sets up through half open structure's bottom produces induced-current, handle the power change that produces on the monitoring power cord through data processing module, thereby when making statistics of the use machine of large-scale instrument.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an apparatus according to an embodiment of the present invention.
Fig. 3 is a schematic diagram according to an embodiment of the present invention.
In the figure: 1. a semi-open structure; 2. an electromagnetic induction coil; 3. a removable cover plate.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides a working condition monitoring device for a large instrument, which comprises a device body, wherein the device body is provided with a semi-open structure, and is sleeved on a power line of the large instrument through the semi-open structure; and the bottom of the semi-open structure is provided with an electromagnetic induction coil which is electrically connected with the data processing module. The power change is detected by utilizing an unbalanced magnetic field generated by a mains supply load on a power line based on the principle that an alternating magnetic field generates an alternating electric field, and the power-on/power-off of a large instrument is monitored by monitoring the power change under the condition that a power line of the large instrument is not damaged, so that the using time of the large instrument is counted.
As an implementation mode, the semi-open structure is an arc-shaped groove, an electromagnetic induction coil is arranged at the bottom of the arc-shaped groove, a data processing module is arranged in the arc-shaped groove, and a first movable cover plate and a second movable cover plate are hinged to two sides of the arc-shaped groove.
Furthermore, free ends of the first cover plate and the second cover plate are provided with clamping structures, when the monitoring device is required to be sleeved on a power line, the first movable cover plate and the second movable cover plate which are clamped together at the free ends are firstly opened, and the power line is put into the arc-shaped groove; when the monitoring device is debugged and needs to be fixed, the free ends of the first movable cover plate and the second movable cover plate are clamped through the clamping piece, so that the monitoring device is fixed with the power line, the power change generated on the power line is monitored, and the using time of a large instrument is counted.
As an implementation mode, two electromagnetic induction coils are arranged at the bottom of the arc-shaped groove, and the two electromagnetic induction coils are connected in series and then electrically connected with the data processing module. Two electromagnetic induction coils are provided to eliminate common mode interference. Because the unbalanced magnetic field generated by the commercial power load on the power line is very weak for the monitoring device with the half-opening structure, in order to improve the monitoring accuracy, the current generated by the two electromagnetic induction coils is utilized to carry out common mode elimination, the intensity of the monitored effective signal is enhanced, and the accuracy of the monitoring device for carrying out power monitoring is improved.
In one embodiment, the first removable cover and the second removable cover have mutually matched fasteners for fixing the monitoring device and a power line of a large instrument together. The fixing and opening between the first flap and the second flap can be achieved by using the prior art, and are only exemplified here.
Specifically, the free end of the first movable cover plate is provided with an L-shaped edge, and the free end of the second movable cover plate is provided with an inverted L-shaped edge matched with the free end of the first movable cover plate. The first movable cover plate and the second movable cover plate are fixed through matching and clamping of the L-shaped edge and the inverted L-shaped edge.
As an implementation mode, an indicator light is arranged on the device body, and the indicator light is electrically connected with the data processing module. The indicator light is arranged to observe the working state of the monitoring device more intuitively.
Further, the monitoring device is provided with a first indicator light and a second indicator light. The first indicator light is used for indicating the working state of the monitoring device, including normal working and alarming. And the second indicator light is used for monitoring the installation position of the device when the power change is maximum during debugging. After the monitoring device is sleeved on the power line, the data processing module executes a debugging program by touching a button connected with the data processing module, a worker rotates the power line, the monitoring device monitors power change in the rotating process, and the second indicator lamp performs color indication at the maximum power change position to fix the monitoring device at the position with the maximum power change.
As an implementation manner, the data processing module includes a power detection module, a single chip microcomputer and a communication module, the electromagnetic induction coil is electrically connected with the power detection module, the power detection module is connected with the single chip microcomputer, and the single chip microcomputer is connected with the communication module. The power detection module monitors power change on a power line according to current generated by the electromagnetic induction coil; the single chip microcomputer is used for counting the duration time of power change generated on a power line of the large instrument and carrying out machine-time counting and storage; and the communication module transmits the stored machine using time to a monitoring center.
Further, the power detection module includes a voltage sensing unit and a current sensing unit. The voltage sensing unit is used for detecting the output voltage of the electromagnetic induction coil in real time, the current sensing unit is used for detecting the output current of the electromagnetic induction coil in real time, and the power value output by the magnetic induction coil is obtained by multiplying the detected voltage and current. The output voltage of the electromagnetic induction coil is the voltage after common mode elimination, and the output current of the electromagnetic induction coil is the current after common mode elimination.
Specifically, the current sensing unit adopts a Rogowski coil, the voltage sensing unit adopts a capacitive voltage divider, and the power detection module can simultaneously realize the measurement of voltage and current and multiply the measured voltage and current to obtain the power value output by the electromagnetic induction coil.
Further, the singlechip can adopt a C51 series singlechip. The single chip microcomputer counts and stores the using time of the large-scale instrument, and the using time statistical data can be transmitted to the monitoring center through two modes of regular uploading or event uploading.
Further, the communication module can be a 4G/5G communication module, a WiFi communication module and the like.
As an embodiment, the data processing module further includes an interference elimination module, the interference elimination module is connected to the power detection module, and the interference elimination module has an executable program for eliminating radiated interference and conducted interference. The executable program for eliminating radiated interference and conducted interference is realized based on a Fourier algorithm.
The utility model discloses based on the principle that alternating magnetic field produced the alternating electric field, utilize the produced unbalanced magnetic field of commercial power load on the power cord to detect power change, under the condition that does not destroy large-scale instrument power cord, does not change electric return circuit, establish monitoring devices cover on the power cord, through rotating monitoring devices, acquire power change's maximum value, then fix monitoring devices in this power change maximum value department, during the use machine of large-scale instrument of statistics through monitoring power change.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The working condition monitoring device for the large instrument is characterized by comprising a device body, wherein the device body is provided with a half-opening structure, and the device body is sleeved on a power supply line of the large instrument through the half-opening structure; and the bottom of the semi-open structure is provided with an electromagnetic induction coil which is electrically connected with the data processing module.
2. The working condition monitoring device for the large instrument according to claim 1, wherein the semi-open structure is an arc-shaped groove, an electromagnetic induction coil is arranged at the bottom of the arc-shaped groove, a data processing module is arranged in the arc-shaped groove, and a first movable cover plate and a second movable cover plate are hinged to two sides of the arc-shaped groove.
3. The large-scale instrument working condition monitoring device according to claim 2, wherein two electromagnetic induction coils are arranged at the bottom of the arc-shaped groove, and the two electromagnetic induction coils are electrically connected with the data processing module after being connected in series.
4. The large-scale apparatus working condition monitoring device according to claim 2, wherein the first movable cover plate and the second movable cover plate are provided with mutually matched clamping pieces for fixing the monitoring device and a large-scale apparatus power line together.
5. The large-scale instrument working condition monitoring device according to claim 1, wherein an indicator lamp is arranged on the device body, and the indicator lamp is electrically connected with the data processing module.
6. The large-scale instrument working condition monitoring device according to claim 1, wherein the data processing module comprises a power detection module, a single chip microcomputer and a communication module, wherein the electromagnetic induction coil is electrically connected with the power detection module, the power detection module is connected with the single chip microcomputer, and the single chip microcomputer is connected with the communication module.
7. The large scale instrument condition monitoring device according to claim 6, wherein the power detection module comprises a voltage sensing unit and a current sensing unit.
8. The large scale instrument condition monitoring device according to claim 6, wherein the data processing module further comprises an interference elimination module, the interference elimination module is connected with the power detection module, and an executable program for eliminating common mode interference and conducted interference is built in the interference elimination module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922132987.3U CN211652988U (en) | 2019-11-29 | 2019-11-29 | Large-scale instrument working condition monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922132987.3U CN211652988U (en) | 2019-11-29 | 2019-11-29 | Large-scale instrument working condition monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN211652988U true CN211652988U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922132987.3U Active CN211652988U (en) | 2019-11-29 | 2019-11-29 | Large-scale instrument working condition monitoring device |
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| Country | Link |
|---|---|
| CN (1) | CN211652988U (en) |
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- 2019-11-29 CN CN201922132987.3U patent/CN211652988U/en active Active
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