CN212256078U - High-voltage electricity signal acquisition and transmission module - Google Patents
High-voltage electricity signal acquisition and transmission module Download PDFInfo
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- CN212256078U CN212256078U CN202021424635.1U CN202021424635U CN212256078U CN 212256078 U CN212256078 U CN 212256078U CN 202021424635 U CN202021424635 U CN 202021424635U CN 212256078 U CN212256078 U CN 212256078U
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Abstract
The utility model discloses an electricity signal detection technical field in a high pressure power consumption signal acquisition transmission module, include: the input signal processing unit is used for filtering, amplitude limiting and isolating the input signal; the input signal acquisition unit is electrically connected with the input signal processing unit and is used for acquiring input signals processed by the input signal processing unit; and the MCU control unit is electrically connected with the input signal acquisition unit and receives and processes the input signals acquired by the input signal acquisition unit. Before the input signal acquisition unit acquires the input signal, the electric signal acquisition and transmission module preprocesses the input signal through the input signal processing unit, so that the anti-interference and impact-resistant capacity of the electric signal acquisition and transmission module is improved.
Description
Technical Field
The utility model relates to an electric signal detection technical field, in particular to high-voltage electricity signal acquisition transmission module.
Background
The electric signal acquisition and transmission module is used for detecting and acquiring voltage signals and current signals in the electric system and transmitting the acquired signals to the controller for analysis and processing, so that the reliable operation of the electric system is controlled.
However, when the electrical signal is collected in the high-voltage test system, a series of interferences are caused due to a large voltage, so that the data collection of the traditional electrical signal collection and transmission module is easy to interrupt or flicker, and even to be broken down or damaged.
Therefore, a high-voltage resistant and anti-interference electric signal acquisition and transmission module is needed in a high-voltage test system.
SUMMERY OF THE UTILITY MODEL
This application has solved among the prior art problem that the great easy interference that arouses of signal of telecommunication collection transmission module collection voltage is punctured even through providing a high voltage power consumption signal collection transmission module, has impact-resistant anti-interference characteristic.
The embodiment of the application provides a high voltage electricity signal acquisition transmission module, includes:
the input signal processing unit is used for filtering, amplitude limiting and isolating an input signal;
the input signal acquisition unit is electrically connected with the input signal processing unit and is used for acquiring the input signal processed by the input signal processing unit;
and the MCU control unit is electrically connected with the input signal acquisition unit and receives and processes the input signals acquired by the input signal acquisition unit.
The beneficial effects of the above embodiment are: before the input signal acquisition unit acquires the input signal, the input signal is preprocessed through the input signal processing unit, so that the anti-interference and impact-resistant capacity of the electric signal acquisition and transmission module is improved.
The application can be further improved on the basis of the above embodiments, specifically as follows:
in one of the embodiments of this application, the input signal includes the input voltage signal, the input signal processing unit corresponds including the input voltage processing unit, the input voltage processing unit is including EMI wave filter one, amplitude limiting diode one, isolation transformer one, amplitude limiting diode two that electricity connects in proper order, voltage signal follows EMI wave filter one gets into the input voltage processing unit, two output of amplitude limiting diode with the input signal acquisition unit electricity is connected. The input voltage signal is sequentially subjected to EMI filtering, diode amplitude limiting, transformer isolation and diode amplitude limiting processing, so that the influence on the input signal acquisition unit is reduced, and the anti-interference and impact-resistant capacity of the acquisition and transmission module for voltage signal acquisition is improved.
In one of the embodiments of this application, input signal still includes the input current signal, the input signal processing unit still corresponds including input current processing unit, input current processing unit is including the isolation transformer two, amplitude limiting diode three, the filter capacitor one that connect electrically in proper order, current signal follows isolation transformer two gets into input current processing unit, a filter capacitor output with the input signal acquisition unit electricity is connected. The acquisition transmission module acquires input current signals while acquiring input voltage signals, and the input current signals are subjected to transformer isolation, diode amplitude limiting and capacitance filtering processing, so that the influence on an input signal acquisition unit is reduced, and the anti-interference capability of the acquisition transmission module in the acquisition process of the input current signals is improved.
In one embodiment of the present application, the high-voltage power utilization signal acquisition and transmission module further includes an output signal acquisition unit and an output signal processing unit, where the output signal processing unit is configured to perform filtering, amplitude limiting, and isolation processing on an output signal; the output signal acquisition unit is respectively electrically connected with the output signal processing unit and the MCU control unit and is used for acquiring output signals processed by the output signal processing unit and transmitting acquired data to the MCU control unit; the MCU control unit is used for receiving and processing the output signals acquired by the output signal acquisition unit. Besides collecting input electric signals, the high-voltage test system can also collect output electric signals of the high-voltage test system at the same time, and the output electric signals also need to be filtered, limited and isolated during collection so as to improve the impact-resistant and anti-interference characteristics of the collection transmission module.
In one of them embodiment of this application, output signal includes output voltage signal, output signal processing unit corresponds including output voltage processing unit, output voltage processing unit is including the filter capacitor two, TVS pipe one, filter capacitor three, buffer amplifier, isolation transformer three, amplitude limiting diode four, filter capacitor four, programmable operational amplifier, filter capacitor five, TVS pipe two that connect gradually the electricity, output voltage signal follows filter capacitor two gets into output voltage processing unit, TVS pipe two output with output signal acquisition unit electricity is connected. Output voltage signal is through electric capacity filtering, TVS pipe protection, electric capacity filtering, fortune buffering, transformer isolation, diode amplitude limiting, electric capacity filtering, fortune are put and are enlargied, electric capacity filtering, TVS pipe protection and handle, reduce the influence to output signal acquisition unit, and simultaneously, output voltage is through protection, isolation resistance, has high impedance input characteristics, enlargies through fortune in addition to ensure the high linearity of gathering the signal.
In one of the embodiments of this application, output signal still includes output current signal, output signal processing unit still corresponds including output current processing unit, output current processing unit is including the filter capacitor six, common mode inductance, amplitude limiting diode five, the filter capacitor seven that connect electrically in proper order, output current signal follows filter capacitor six gets into output current processing unit, the seven outputs of filter capacitor with output signal acquisition unit electricity is connected. The output signal acquisition unit acquires output current signals while acquiring output voltage signals, and the output current signals are subjected to capacitance filtering, common mode inductance suppression, diode amplitude limiting and capacitance filtering, so that the influence on the output signal acquisition unit is reduced, and the anti-interference capability of the acquisition transmission module for the acquisition of the output current signals is improved.
In one of the embodiments of this application, output signal still includes reserve voltage signal, output signal processing unit still corresponds including reserve voltage processing unit, reserve voltage processing unit is including the EMI wave filter two, amplitude limiting diode six, isolation transformer four, amplitude limiting diode seven that connect gradually the electricity, reserve voltage signal is followed EMI wave filter two gets into reserve voltage processing unit, amplitude limiting diode seven output with output signal acquisition unit electricity is connected.
In one embodiment of the present application, the high-voltage power consumption signal acquisition and transmission module further includes a storage unit, a watchdog monitoring unit, a system function configuration unit, and a system status indication unit, which are electrically connected to the MCU control unit, respectively. Through the system function configuration unit, a user can configure functions such as a voltage input source, an input overcurrent judgment mode, output overcurrent judgment and the like through the 4-way dial switch, so that the system is more flexible to use; the system state indicating unit is used for indicating whether the working states of the power supplies with different voltages of the system are normal or not, when the system power supply fails, users and maintenance personnel can quickly locate the fault type of the power supply through the indicating lamp, and meanwhile, the speed of solving the fault is increased; the independent storage unit is used for storing important system configuration parameters; the watchdog monitoring unit is used for monitoring the running state of the MCU in real time, so that the system runs more stably and reliably.
In one embodiment of the application, the MCU control unit is provided with a com1 interface, and the com1 interface is used for connecting and communicating with the PLC.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
1. before the input signal acquisition unit acquires the input signal, the input signal is preprocessed through the input signal processing unit, so that the anti-interference and impact-resistant capacity of the electric signal acquisition and transmission module is improved.
2. The input voltage, the input current, the output voltage, the output current and the standby voltage signal of the high-voltage test system can be collected simultaneously, the data collection is comprehensive, and the control on the high-voltage test system is facilitated.
Drawings
Fig. 1 is a block diagram of the present invention.
Detailed Description
The present invention will be further explained with reference to the following embodiments, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples and features of the various embodiments or examples described herein can be combined and combined by those skilled in the art without conflicting aspects.
The embodiment of the application provides an electric signal acquisition transmission module for high voltage, solves the problem that the electric signal acquisition transmission module in the prior art acquires voltage, which is large and easy to cause interference and even breakdown, and has impact-resistant and anti-interference characteristics.
In order to solve the above problems, the technical solution in the embodiment of the present application has the following general idea:
the first embodiment is as follows:
as shown in fig. 1, a high voltage electricity signal acquisition and transmission module includes: the device comprises an input signal processing unit, an input signal acquisition unit, an output signal processing unit, an output signal acquisition unit and an MCU (microprogrammed control Unit); the input signal processing unit is electrically connected with the input signal acquisition unit, the output signal processing unit is electrically connected with the output signal acquisition unit, the input signal acquisition unit and the output signal acquisition unit are respectively and electrically connected with the MCU control unit, and the MCU control unit receives and processes the electric signals acquired by the input signal acquisition unit; the input signal acquisition unit is used for acquiring the input signal processed by the input signal processing unit and transmitting the acquired data to the MCU control unit; the output signal acquisition unit is used for acquiring the output signal processed by the output signal processing unit and transmitting the acquired data to the MCU control unit; the MCU control unit is used for receiving and processing the electric signals acquired by the input signal acquisition unit and the output signal acquisition unit.
Aiming at an input voltage signal and an input current signal, the input signal processing unit correspondingly comprises an input voltage processing unit and an input current processing unit, the input voltage processing unit comprises a first EMI filter, a first amplitude limiting diode, a first isolation transformer and a second amplitude limiting diode which are sequentially and electrically connected, the voltage signal enters the input voltage processing unit from the first EMI filter, and the output end of the second amplitude limiting diode is electrically connected with the input signal acquisition unit; the input current processing unit comprises an isolation transformer II, an amplitude limiting diode III and a filter capacitor I which are sequentially and electrically connected, a current signal enters the input current processing unit from the isolation transformer II, and the output end of the filter capacitor I is electrically connected with the input signal acquisition unit.
Aiming at an output voltage signal, an output current signal and a standby voltage signal, the output signal processing unit correspondingly comprises an output voltage processing unit, an output current processing unit and a standby voltage processing unit, the output voltage processing unit comprises a second filter capacitor, a first TVS (transient voltage suppressor) tube, a third filter capacitor, a buffer amplifier, a third isolation transformer, a fourth limiting diode, a fourth filter capacitor, a programmable operational amplifier, a fifth filter capacitor and a second TVS tube which are sequentially and electrically connected, the output voltage signal enters the output voltage processing unit from the second filter capacitor, and the output end of the second TVS tube is electrically connected with the output signal acquisition unit; the output current processing unit comprises a filter capacitor six, a common mode inductor, a limiting diode five and a filter capacitor seven which are electrically connected in sequence, an output current signal enters the output current processing unit from the filter capacitor six, and the output end of the filter capacitor seven is electrically connected with the output signal acquisition unit; the standby voltage processing unit comprises an EMI filter II, an amplitude limiting diode VI, an isolation transformer IV and an amplitude limiting diode VII which are sequentially and electrically connected, standby voltage signals enter the standby voltage processing unit from the EMI filter II, and the output end of the amplitude limiting diode VII is electrically connected with the output signal acquisition unit.
The high-voltage power utilization signal acquisition and transmission module also comprises a storage unit, a watchdog monitoring unit, a system function configuration unit, a system state indication unit and a power supply unit which are respectively and electrically connected with the MCU control unit; through the system function configuration unit, a user can configure functions such as a voltage input source, an input overcurrent judgment mode, output overcurrent judgment and the like through the 4-way dial switch, so that the system is more flexible to use; the system state indicating unit is used for indicating whether the working states of the power supplies with different voltages of the system are normal or not, when the system power supply fails, users and maintenance personnel can quickly locate the fault type of the power supply through the indicating lamp, and meanwhile, the speed of solving the fault is increased; the independent storage unit is used for storing important system configuration parameters; the watchdog monitoring unit is used for monitoring the running state of the MCU in real time, so that the system runs more stably and reliably; the power supply unit is used for supplying power to the input signal processing unit, the input signal acquisition unit, the output signal processing unit, the output signal acquisition unit, the MCU control unit, the storage unit, the watchdog monitoring unit, the system function configuration unit and the system state indication unit.
The MCU control unit is provided with a com1 interface and a com2 interface, the com1 interface is used for being connected with the PLC controller for communication, subsequent expansion is facilitated, and the com2 interface is reserved.
Wherein, input signal acquisition unit and output signal acquisition unit all adopt available RN8209 chip, and the MCU control unit can adopt STM32F series.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (9)
1. The utility model provides a high pressure electricity utilization signal acquisition transmission module which characterized in that includes:
the input signal processing unit is used for filtering, amplitude limiting and isolating an input signal;
the input signal acquisition unit is electrically connected with the input signal processing unit and is used for acquiring the input signal processed by the input signal processing unit;
and the MCU control unit is electrically connected with the input signal acquisition unit and receives and processes the input signals acquired by the input signal acquisition unit.
2. The electrical signal acquisition and transmission module of claim 1, wherein: the input signal comprises an input voltage signal, the input signal processing unit correspondingly comprises an input voltage processing unit, the input voltage processing unit comprises a first EMI filter, a first amplitude limiting diode, a first isolation transformer and a second amplitude limiting diode which are sequentially and electrically connected, the voltage signal enters the input voltage processing unit from the first EMI filter, and the second output end of the amplitude limiting diode is electrically connected with the input signal acquisition unit.
3. The electrical signal acquisition and transmission module of claim 2, wherein: the input signal further comprises an input current signal, the input signal processing unit further correspondingly comprises an input current processing unit, the input current processing unit comprises a second isolation transformer, a third amplitude limiting diode and a first filter capacitor, the second isolation transformer, the third amplitude limiting diode and the first filter capacitor are electrically connected in sequence, the current signal enters the input current processing unit from the second isolation transformer, and the output end of the first filter capacitor is electrically connected with the input signal acquisition unit.
4. The electrical signal acquisition and transmission module of claim 1, wherein: the device also comprises an output signal acquisition unit and an output signal processing unit, wherein the output signal processing unit is used for filtering, amplitude limiting and isolating the output signal; the output signal acquisition unit is respectively electrically connected with the output signal processing unit and the MCU control unit and is used for acquiring output signals processed by the output signal processing unit and transmitting acquired data to the MCU control unit; the MCU control unit is used for receiving and processing the output signals acquired by the output signal acquisition unit.
5. The electrical signal acquisition and transmission module of claim 4, wherein: output signal includes output voltage signal, output signal processing unit corresponds including output voltage processing unit, output voltage processing unit is including the filter capacitor two, TVS pipe one, filter capacitor three, buffer amplifier, isolation transformer three, amplitude limiting diode four, filter capacitor four, programmable operational amplifier, filter capacitor five, TVS pipe two that the electricity is connected in proper order, output voltage signal follows filter capacitor two gets into output voltage processing unit, two output terminals of TVS pipe with output signal acquisition unit electricity is connected.
6. The electrical signal acquisition and transmission module of claim 5, wherein: the output signal still includes output current signal, output signal processing unit still corresponds including output current processing unit, output current processing unit is including the filter capacitor six, common mode inductance, amplitude limiting diode five, the filter capacitor seven that connect gradually the electricity, output current signal follows filter capacitor six gets into output current processing unit, filter capacitor seven output with output signal acquisition unit electricity is connected.
7. The electrical signal acquisition and transmission module of claim 5, wherein: the output signal still includes reserve voltage signal, output signal processing unit still corresponds including reserve voltage processing unit, reserve voltage processing unit is including the EMI wave filter two, amplitude limiting diode six, isolation transformer four, amplitude limiting diode seven that connect gradually the electricity, reserve voltage signal is followed EMI wave filter two gets into reserve voltage processing unit, seven outputs of amplitude limiting diode with output signal acquisition unit electricity is connected.
8. The electrical signal acquisition and transmission module of claim 1, wherein: the system also comprises a storage unit, a watchdog monitoring unit, a system function configuration unit and a system state indicating unit which are respectively electrically connected with the MCU control unit.
9. The electrical signal acquisition and transmission module of claim 1, wherein: the MCU control unit is provided with a com1 interface, and the com1 interface is used for connecting and communicating with the PLC.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021424635.1U CN212256078U (en) | 2020-07-17 | 2020-07-17 | High-voltage electricity signal acquisition and transmission module |
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| CN202021424635.1U CN212256078U (en) | 2020-07-17 | 2020-07-17 | High-voltage electricity signal acquisition and transmission module |
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