CN216526080U - Anti-interference detection device for high-speed carrier communication equipment of High Performance Liquid Chromatography (HPLC) - Google Patents
Anti-interference detection device for high-speed carrier communication equipment of High Performance Liquid Chromatography (HPLC) Download PDFInfo
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- CN216526080U CN216526080U CN202122774281.4U CN202122774281U CN216526080U CN 216526080 U CN216526080 U CN 216526080U CN 202122774281 U CN202122774281 U CN 202122774281U CN 216526080 U CN216526080 U CN 216526080U
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Abstract
The utility model relates to the technical field of interference resistance detection of power line carrier communication equipment, and discloses an interference resistance detection device of high-speed carrier communication equipment of High Performance Liquid Chromatography (HPLC), which comprises a shielding shell, a single-phase intelligent electric meter, a three-phase intelligent electric meter, a state network acquisition terminal, a circuit breaker, a voltage binding post, a conversion joint and a 232 interface for connecting an external terminal, wherein the circuit breaker is arranged on the right side surface of the shielding shell, the voltage binding post is arranged on the left side surface of the shielding shell, and an external power supply, the voltage binding post and a low-pass filter are electrically connected in sequence. The minimum (high) anti-interference strength of a carrier chip is tried by externally applying conducted interference and radiated interference to the high-speed carrier communication equipment under different frequency bands of the high-speed carrier communication equipment so as to select the optimal frequency band, and electromagnetic interference generated by some electronic products is prevented from influencing or damaging other normal work through the anti-interference performance, so that the problems that the anti-interference performance of the conventional high-speed carrier communication equipment is inconvenient to detect and the optimal frequency band is difficult to adjust and select are solved.
Description
Technical Field
The utility model relates to the technical field of interference rejection detection of power line carrier communication equipment, in particular to an interference rejection detection device of high-speed carrier communication equipment for High Performance Liquid Chromatography (HPLC).
Background
The EMC includes two requirements, that is, on one hand, the electromagnetic disturbance generated by the equipment to the environment in the normal operation process cannot exceed a certain limit value, and on the other hand, the equipment has a certain degree of immunity to the electromagnetic disturbance existing in the environment, that is, electromagnetic sensitivity, there are conducted interference and radiation interference at present, the conducted interference mainly is that interference signals generated by the electronic equipment interfere with each other through a conductive medium or a common power line, the radiation interference means that interference signals generated by the electronic equipment transmit interference signals to another electric network or electronic equipment through spatial coupling, it is very important how to try to adjust the frequency band to reduce the interference, and the existing HPLC high-speed carrier communication equipment is inconvenient in detecting the immunity performance, it is difficult to locate the interference type, interference frequency band and interference strength, and the carrier cannot select the best channel frequency band, so it provides an anti-interference detection device for high-speed carrier communication equipment of HPLC.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides an anti-interference detection device of high-performance liquid chromatography (HPLC) high-speed carrier communication equipment, which has the anti-interference performance capable of rapidly detecting the HPLC high-speed carrier communication equipment, and the communication equipment can position interference signals, adjust and select the optimal channel frequency band and reduce interference according to the detection condition, so that the problems that the anti-interference performance of the conventional HPLC high-speed carrier communication equipment is inconvenient to detect and the optimal frequency band is difficult to adjust and select are solved.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high-speed carrier communication equipment anti-interference detection device of HPLC, includes shielding shell, single-phase smart electric meter, three-phase smart electric meter, state net collection terminal, circuit breaker, voltage terminal, crossover sub and is used for connecting the 232 interface at external terminal, single-phase smart electric meter, three-phase smart electric meter and state net collection terminal install in shielding shell's inside, crossover sub and 232 interface are located shielding shell's right flank top, shielding shell's right flank is equipped with the circuit breaker, shielding shell's left surface is equipped with the voltage terminal, the voltage terminal is used for voltage access, provides voltage for state net collection terminal, three-phase smart electric meter, single-phase smart electric meter, and external power source, voltage terminal and low pass filter electricity in proper order are connected.
The scheme is further optional, the shielding shell is made of an insulating electrical wood board, and the shielding and wave absorbing plate is detachably arranged on the inner wall of the shielding shell.
The scheme is further optional, the low-pass filter is used for shielding the interference of the power line noise to the carrier signal, and the attenuation effect is 300 KHz-20 MHz @70 dB; the shielding and wave-absorbing plate is used for isolating attenuation of space coupling signals to carrier signals, and the shielding effect is 700 KHz-300 MHz @60 dB.
According to the scheme, the shielding shell is further optional, two connecting rib plates are arranged inside the shielding shell, the shielding shell is divided into three chambers which are arranged in a left-right mode through the two connecting rib plates, and the single-phase intelligent electric meter, the three-phase intelligent electric meter and the state network acquisition terminal are respectively arranged in the three chambers.
The scheme is further optional, the state network acquisition terminal is installed on the back plate of the shielding shell through the concentrator bottom plate, the inside of the shielding shell is further provided with the power-on indicator lamp, and the circuit breaker is installed on the shielding shell through the fixing screw.
In a further optional manner, handles for lifting, picking and placing are mounted at two ends of the shielding shell through 180-degree steering rings.
Compared with the prior art, the utility model provides an anti-interference detection device for high-speed carrier communication equipment of HPLC, which has the following beneficial effects:
the anti-interference detection device for the high-speed carrier communication equipment for the HPLC tries the minimum (high) anti-interference strength of a carrier chip by externally adding conducted interference and radiation interference to the high-speed carrier communication equipment under different frequency bands of the high-speed carrier communication equipment for the HPLC so as to select the optimal frequency band, prevents electromagnetic interference generated by some electronic products from influencing or destroying other normal work of the electronic products through anti-interference performance, and solves the problems that the anti-interference performance of the high-speed carrier communication equipment for the HPLC is inconvenient to detect and the optimal frequency band is difficult to adjust and select.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic diagram of an internal structure of an embodiment of an anti-interference detection apparatus for an HPLC high-speed carrier communication device according to the present invention;
FIG. 2 is a general schematic diagram of an embodiment of an anti-interference detection apparatus for an HPLC high-speed carrier communication device according to the present invention;
fig. 3 is a schematic diagram of a software operating system of an embodiment of the anti-interference detection apparatus for HPLC high speed carrier communication equipment of the present invention.
In the figure: 1. the intelligent power supply comprises a shielding shell 2, an electrifying indicator lamp 3, a conversion joint 4, a 232 interface 5, a handle 6, a fixing screw 7, a circuit breaker 8, a single-phase intelligent electric meter 9, a national grid acquisition terminal 10, a shielding and wave absorbing plate 11, a voltage wiring terminal 12, a three-phase intelligent electric meter 13 and a connecting rib plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-2, an anti-interference detection device for HPLC high-speed carrier communication equipment, includes a shielding case 1, a single-phase smart electric meter 8, a three-phase smart electric meter 12, a national grid collection terminal 9, a circuit breaker 7, a voltage terminal 11, a conversion connector 3 and a 232 interface 4 for connecting an external terminal, the single-phase smart electric meter 8, the three-phase smart electric meter 12 and the national grid collection terminal 9 are installed inside the shielding case 1, the conversion connector 3 and the 232 interface 4 are installed on the top of the right side surface of the shielding case 1, the circuit breaker 7 is installed on the right side surface of the shielding case 1, the voltage terminal 11 is installed on the left side surface of the shielding case 1, the voltage terminal 11 is used for voltage access, provide voltage for the national grid collection terminal 9, the three-phase smart electric meter 12 and the single-phase smart electric meter 8, and an external power supply, the voltage terminal 11 and a low-pass filter are electrically connected in sequence.
The device is connected with an external terminal through a 232 interface 4, the external terminal controls the operation of an internal program of the tool through software, and the influence of external interference, namely factors except electronic equipment or a system, on a circuit, the equipment or the system is realized by adjusting an external power supply signal, wherein the interference mainly comprises the following steps:
(a) external high voltage, power supplies interfere with electronic circuits, equipment or systems through insulation leakage;
(b) external high-power equipment generates a strong magnetic field in space and interferes an electronic circuit, equipment or system through mutual inductance coupling;
(c) interference generated by space electromagnetism on electronic circuits or systems;
(d) the temperature of the working environment is unstable, which causes interference caused by the change of parameters of components inside electronic circuits, equipment or systems.
The detection equipment is operated by connecting control software of a PC end, a software working shell refers to a figure 3, an inspector only can see an operation module, and an administrator can see the operation module and a production management module.
The production detection operation module is used by a detector for detecting a terminal product, and the detection function of the terminal is performed by using the national network standard protocol at present;
the factory setting operation module is used for executing parameter setting functions under various protocols and protocols;
the parameter verification operation module is used for verifying the correctness of parameter setting of factory setting operation;
the scheme configuration module is used for configuring items to be detected by the terminal and is divided into three categories of detection, setting and verification;
the plan configuration module is used for configuring the production order;
the operation configuration module is used for planning the associated configuration function of the scheme;
the data management module is used for inquiring and tracking production data;
the user management module is used for creating, modifying and deleting the user;
and the tool management module is used for creating, modifying and deleting the tool.
Referring to fig. 1, a shielding shell 1 is made of an insulating electrical wood board, a shielding and wave-absorbing plate 10 is detachably arranged on the inner wall of the shielding shell 1, a low-pass filter is used for shielding interference of power line noise to a carrier signal, and the attenuation effect is 300KHz to 20MHz @70 dB; the shielding and wave-absorbing plate 10 is used for isolating attenuation of space coupling signals to carrier signals, and the shielding effect is 700 KHz-300 MHz @60 dB.
The low-pass filter can effectively isolate interference signals on a power line, the shielding and wave-absorbing plate 10 is detachably arranged on the inner wall of the shielding shell 1, the influence of electromagnetic interference on HPLC communication can be effectively reduced, the influence of external electromagnetic factors on the communication effect is reduced, a power supply is externally connected with a jack type socket, the power supply of an external interference source device is realized, software instruction communication is carried out, and the reading success rate of different interference frequency points under the condition of external interference variables is realized.
Referring to fig. 1, two connecting rib plates 13 are arranged inside the shielding shell 1, the shielding shell 1 is divided into three chambers arranged in left and right by the two connecting rib plates 13, and the single-phase smart meter 8, the three-phase smart meter 12 and the national grid collection terminal 9 are respectively installed in the three chambers.
The state net acquisition terminal 9 is installed on the backplate of shielding shell 1 through the concentrator bottom plate, and the circular telegram pilot lamp 2 is still installed to shielding shell 1's inside, and circuit breaker 7 passes through set screw 6 to be installed on shielding shell 1.
Referring to fig. 2, handles 5 for lifting, picking and placing are mounted at two ends of the shielding shell 1 through 180 ° steering rings.
Internal power supply back internal interference internal electronic component mutual interference between, disturb mainly including:
(a) the working power supply generates interference caused by electric leakage through a distributed power supply and an insulation resistor of a circuit;
(b) the signal is coupled with each other through the impedance of the ground wire, the power supply and the transmission lead, or the influence caused by mutual inductance among the leads;
(c) some elements in the equipment or system generate heat, and influence the interference caused by the stability of the elements and other elements;
(d) the magnetic field and the electric field generated by the high-power and high-point voltage component influence the interference caused by other components through coupling.
The working principle is as follows:
1. positioning an interference signal;
the whole device is connected with a low-pass filter, and the shielding shell 1 keeps shielding and wave-absorbing materials under the condition of unknown interference signals.
And (3) removing the low-pass filter, and reserving the shielding and wave absorbing plate 10, wherein if the carrier communication is interfered, the conducted interference exists.
And (3) removing the shielding and wave absorbing plate 10, reserving the low-pass filter, and if the carrier communication is interfered, indicating that conducted interference exists.
2. Interference band location
And adjusting the frequency of the route communication channel of the acquisition terminal, wherein the frequency point has poor communication effect, which indicates that the interference signal intensity of the frequency point is high, so as to select the optimal frequency band.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An anti-interference detection device of high-speed carrier communication equipment of HPLC is characterized in that: the intelligent power supply comprises a shielding shell, a single-phase intelligent electric meter, a three-phase intelligent electric meter, a national grid acquisition terminal, a circuit breaker, a voltage binding post, a conversion joint and a 232 interface for connecting an external terminal;
single-phase smart electric meter, three-phase smart electric meter and state net collection terminal all install in shielding shell's inside, crossover sub and 232 interface are located shielding shell's right flank top, shielding shell's right flank is equipped with the circuit breaker, shielding shell's left flank is equipped with the voltage terminal, the voltage terminal is used for voltage access, provides voltage for state net collection terminal, three-phase smart electric meter, single-phase smart electric meter, and external power source, voltage terminal and low pass filter are connected in proper order the electricity.
2. An apparatus according to claim 1, characterized in that: the shielding shell is made of an insulating electrician wood board, and the inner wall of the shielding shell is detachably provided with a shielding and wave absorbing plate.
3. An apparatus according to claim 2, characterized in that: the low-pass filter is used for shielding the interference of power line noise to a carrier signal, and the attenuation effect of the low-pass filter is 300 KHz-20 MHz @70 dB;
the shielding and wave-absorbing plate is used for isolating attenuation of space coupling signals to carrier signals, and the shielding effect is 700 KHz-300 MHz @60 dB.
4. An apparatus according to claim 2, characterized in that: the inside of shield shell is equipped with two connection gusset, two connection gusset will shield shell separates to establish into the three cavity of arranging about, single-phase smart electric meter, three-phase smart electric meter and state net acquisition terminal are installed respectively in three in the cavity.
5. An apparatus according to claim 4, characterized in that: the state net acquisition terminal is installed through the concentrator bottom plate on the backplate of shielding shell, the inside circular telegram pilot lamp that still installs of shielding shell, the circuit breaker passes through the fixed screw and installs on shielding shell.
6. An apparatus according to claim 5, characterized in that: handles for lifting, taking and placing are arranged at two ends of the shielding shell through 180-degree steering rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122774281.4U CN216526080U (en) | 2021-11-13 | 2021-11-13 | Anti-interference detection device for high-speed carrier communication equipment of High Performance Liquid Chromatography (HPLC) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122774281.4U CN216526080U (en) | 2021-11-13 | 2021-11-13 | Anti-interference detection device for high-speed carrier communication equipment of High Performance Liquid Chromatography (HPLC) |
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| CN216526080U true CN216526080U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122774281.4U Active CN216526080U (en) | 2021-11-13 | 2021-11-13 | Anti-interference detection device for high-speed carrier communication equipment of High Performance Liquid Chromatography (HPLC) |
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| CN (1) | CN216526080U (en) |
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2021
- 2021-11-13 CN CN202122774281.4U patent/CN216526080U/en active Active
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