CN210090555U - Single-phase guide rail type electric energy meter - Google Patents
Single-phase guide rail type electric energy meter Download PDFInfo
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- CN210090555U CN210090555U CN201920704430.XU CN201920704430U CN210090555U CN 210090555 U CN210090555 U CN 210090555U CN 201920704430 U CN201920704430 U CN 201920704430U CN 210090555 U CN210090555 U CN 210090555U
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Abstract
The application discloses single-phase guide tracked electric energy meter includes: the system comprises an electric energy meter, a GPRS communication module and an antenna; the electric energy meter is used for metering electric energy data; and the GPRS communication module is respectively connected with the electric energy meter and the antenna and used for sending the electric energy data metered by the electric energy meter through the antenna. This single-phase guide tracked electric energy meter sets up GPRS communication module and replaces traditional power line carrier communication module to carry out data communication through GPRS communication module, thereby better overcome the technical defect of power line carrier communication scheme, can effectively improve the communication interference killing feature, break through communication range, communication distance's limitation, have good environmental suitability, maintain convenience and operation security.
Description
Technical Field
The application relates to the technical field of power equipment, in particular to a single-phase guide rail type electric energy meter.
Background
At present, a single-phase guide rail type electric energy meter is provided with power line carrier communication, and data transmission is carried out by adopting a power line carrier communication mode by means of the existing power line, so that interconnection and networking among the electric energy meters are realized. However, the power line carrier communication module has a complex circuit principle, many components, a large size, high power consumption and high cost. And because the distribution transformer has the effect of blocking the power line carrier signal, the transmission range of the power line carrier signal is limited, and the power line carrier signal can be transmitted only in one distribution transformer area. In addition, the power line may cause signal reduction on the carrier signal, thereby seriously affecting the transmission distance of the carrier signal.
In view of the above, the technical problem to be solved is urgently needed by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a single-phase guide tracked electric energy meter can effectively solve above-mentioned technical defect.
In order to solve the above technical problem, the present application provides a single-phase guide tracked electric energy meter, include:
the system comprises an electric energy meter, a GPRS communication module and an antenna;
the electric energy meter is used for metering electric energy data;
and the GPRS communication module is respectively connected with the electric energy meter and the antenna and used for sending the electric energy data metered by the electric energy meter through the antenna.
Optionally, the GPRS communication module is specifically an Air202GPRS communication module.
Optionally, the Air202GPRS communication module is specifically connected to the electric energy meter through a UART serial port.
Optionally, the method further includes:
and the communication indicating circuit is connected with the GPRS communication module and is used for indicating the running state of the GPRS communication module.
Optionally, the communication indication circuit includes:
the LED comprises a first resistor, a second resistor, a third resistor, a light emitting diode and a triode; wherein, the one end of first resistance connect in Air202GPRS communication module, the other end of first resistance connect in the base of triode, the projecting pole ground connection of triode, the collecting electrode of triode connect in the one end of second resistance, the other end of second resistance connect in emitting diode's negative pole, emitting diode's positive pole is connected the power, the both ends of third resistance connect respectively in the base and the projecting pole of triode.
Optionally, each resistor is specifically a chip resistor.
Optionally, the method further includes:
and the filter circuit is connected with a power supply and the Air202GPRS communication module.
Optionally, the filter circuit includes:
a first capacitor, a second capacitor and a third capacitor; the first capacitor, the second capacitor and the third capacitor are connected in parallel, a first common end is respectively connected with the power supply and the Air202GPRS communication module, and a second common end is grounded.
Optionally, each capacitor is specifically a patch capacitor.
The application provides a single-phase guide tracked electric energy meter includes: the system comprises an electric energy meter, a GPRS communication module and an antenna; the electric energy meter is used for metering electric energy data; and the GPRS communication module is respectively connected with the electric energy meter and the antenna and used for sending the electric energy data metered by the electric energy meter through the antenna.
Obviously, compare in the traditional single-phase guide tracked electric energy meter that adopts power line carrier communication mode, the single-phase guide tracked electric energy meter that this application provided sets up GPRS communication module and replaces traditional power line carrier communication module to carry out data communication through GPRS communication module, thereby the better technical defect who overcomes power line carrier communication scheme can effectively improve communication interference killing feature, break through communication range, communication distance's limitation, have good environmental suitability, maintain convenience and operational safety.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram of a single-phase guide rail type electric energy meter provided in an embodiment of the present application;
fig. 2 is a schematic electrical connection diagram of a GPRS communication module according to an embodiment of the present application;
fig. 3 is a schematic diagram of a communication indication circuit according to an embodiment of the present application;
fig. 4 is a schematic diagram of a filter circuit according to an embodiment of the present disclosure.
Detailed Description
The core of this application is to provide a single-phase guide tracked electric energy meter, can effectively solve above-mentioned technical defect.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
Referring to fig. 1, fig. 1 is a schematic diagram of a single-phase guide rail type electric energy meter according to an embodiment of the present disclosure; referring to fig. 1, the single-phase rail-type electric energy meter includes: the electric energy meter 10, the GPRS communication module 20 and the antenna 30;
specifically, the single-phase guide rail type electric energy meter provided by the application replaces a power line carrier communication module of the existing single-phase guide rail type electric energy meter through the GPRS communication module 20, so as to overcome many technical defects of the adoption of a power line carrier communication scheme. The electric energy meter 10 is responsible for measuring electric energy data, and specific structures, types and the like of the electric energy meter can refer to the electric energy meter of the existing single-phase guide rail type electric energy meter, which is not described herein in detail.
The GPRS communication module 20 is connected to the electric energy meter 10, specifically to a microcontroller of the electric energy meter 10, and to the antenna 30, so as to communicate with the electric energy meter 10 through a serial port and send data through the antenna 30, thereby implementing data interaction. Specifically, the microcontroller of the electric energy meter 10 may send an AT command to the GPRS communication module 20 and wait for the feedback information of the GPRS communication module 20, thereby completing the setting of the GPRS communication module 20 and the dialing operation of the GPRS communication module 20. The GPRS communication module 20 performs wireless communication with a GPRS service node of a GSM base station via the antenna 30, enters a GPRS network, and further accesses the internet for data interaction.
The specific type of the GPRS communication module 20 is not limited herein, and may be set differently according to actual application requirements, for example, the GPRS communication module may be an M26GPRS communication module, an R800C GPRS communication module, an Air202GPRS communication module, and the like.
In one particular embodiment, GPRS communication module 20 is specifically an Air202GPRS communication module.
Specifically, the Air202GPRS communication module is a four-band GSM/GPRS module, and its operating frequency band includes GSM850MHz, GSM900MHz, DCS1800MHz and PCS1900MHz, which can better meet the frequency band requirement. In addition, the Air202GPRS communication module supports GPRS multislot class 10 and GPRS coding formats CS-1, CS-2, CS-3 and CS-4. In addition, 32MbNorFlash and 32MbSRAM are built in the Air202GPRS communication module, a Luat open source platform (special open source platform of converged communication company) is supported, secondary development is convenient to carry out, and the development period and the development cost are greatly reduced. Meanwhile, the Air202GPRS communication module has rich peripheral serial ports, supports various serial ports such as UART, SPI, I2C and the like, can support 16 GPIOs at most, supports ADC and audio input and output functions, and meets the use requirements of various application scenes. Based on this, in this embodiment, an Air202GPRS communication module is specifically selected, and the Air202GPRS communication module is used as a core to construct a complete terminal communication system with a microcontroller of the electric energy meter, so as to perform data communication, thereby satisfying the miniaturization design of the single-phase guide rail type electric energy meter and effectively reducing power consumption.
In addition, as for the connection mode of the Air202GPRS communication module and the electric energy meter, the application is not limited uniquely, and the adaptive setting can be carried out by combining the actual situation.
In a specific embodiment, the Air202GPRS communication module is connected to the electric energy meter 10 through a UART serial port.
Specifically, referring to fig. 2, fig. 2 is a schematic electrical connection diagram of a GPRS communication module according to an embodiment of the present application; the PWRKEY pin and the RESET pin of the Air202GPRS communication module are connected with a resistor in series and then are respectively connected with a PB.15 pin and a PD.15 pin of a microcontroller of the electric energy meter, so that the startup, shutdown and RESET operations of the microcontroller on the Air202GPRS communication module are respectively realized. The UART1_ CTS pin of the Air202GPRS communication module is connected with a resistor in series and then is connected with the PA.6 pin of the microcontroller of the electric energy meter so as to realize clear sending operation. The UART1_ RTS of the Air202GPRS communication module is connected with a resistor in series and then is connected with a PB.7 pin of a microcontroller of the electric energy meter so as to realize the operation of sending data by a DTE request. The UART1_ TXD pin of the Air202GPRS communication module is connected with a resistor in series and then is connected with the PE.1 pin of the microcontroller of the electric energy meter; the UART1_ RXD pin of the Air202GPRS communication module is connected with the resistor in series and then is connected with the PE.2 pin of the microcontroller of the electric energy meter so as to correspondingly realize the operations of sending data by the serial port and receiving data by the serial port. A UART1_ DCD pin, a UART1_ RI pin and a UART1_ DTR pin of the Air202GPRS communication module are respectively and correspondingly connected with a PB.6 pin PB.5 pin and a PB.4 pin of a microcontroller of the electric energy meter after being connected with a resistor in series; to respectively implement carrier detection, ring indication and DTE ready operation. In addition, the VATB pin of the Air202GPRS communication module is connected with a power supply, specifically, the voltage can be 3.3-4.0V, the GND pin of the Air202GPRS communication module is grounded, and other pins can be idle for standby. In addition, the antenna 30 may be connected to the ANT pin of the Air202GPRS communication module.
Further, in a specific embodiment, the single-phase rail-type electric energy meter further includes: and a communication indicating circuit connected with the GPRS communication module 20 and used for indicating the running state of the GPRS communication module 20.
Specifically, in order to effectively acquire the operating state of the GPRS communication module 20 in time, in this embodiment, the single-phase rail electric energy meter is further provided with a communication indicating circuit, so that the operating state of the GPRS communication module 20 is indicated by using the communication indicating circuit.
Wherein, optionally, the communication indication circuit comprises: the circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a light emitting diode D and a triode Q; one end of the first resistor R1 is connected to the Air202GPRS communication module, the other end of the first resistor R1 is connected to the base electrode of the triode Q, the emitting electrode of the triode Q is grounded, the collecting electrode of the triode Q is connected to one end of the second resistor R2, the other end of the second resistor R2 is connected to the cathode of the light emitting diode D, the anode of the light emitting diode D is connected with the power supply, and two ends of the third resistor R3 are connected to the base electrode and the emitting electrode of the triode Q respectively.
Specifically, referring to fig. 3, the present embodiment provides a specific communication indicating circuit, which includes a first resistor R1, a second resistor R2, a third resistor R3, a light emitting diode D, and a transistor Q, wherein the connection manner of the components is as described above, wherein one end of the first resistor R1 connected to the Air202GPRS communication module may be specifically connected to a 32K _ OUT pin of the Air202GPRS communication module, so that the 32K _ OUT pin outputs a related level to control the communication indicating circuit to be turned on or off. And when the communication indicating circuit is conducted, the light emitting diode D is lightened, and the Air202GPRS communication module can correspond to a communication state. Conversely, the light emitting diode D goes off when the communication indication circuit is turned off, at which time the Air202GPRS communication module corresponds to a non-communication state.
In addition, in a specific implementation mode, each resistor can be specifically a chip resistor, so that the occupied space is reduced, and the requirement of miniaturization design of the single-phase guide rail type electric energy meter is better met.
Similarly, the resistors connected to the pins of the Air202GPRS communication module may be patch resistors.
Further, in a specific embodiment, the single-phase guide rail type electric energy meter further comprises; and the filter circuit is connected with the power supply and the Air202GPRS communication module.
Specifically, the single-phase guide rail type electric energy meter in the embodiment is further provided with a filter circuit, and the filter circuit is respectively connected with the power supply and the Air202GPRS communication module so as to guarantee power supply reliability.
Wherein, optionally, the filter circuit comprises: a first capacitor C1, a second capacitor C2, and a third capacitor C3; the first capacitor C1, the second capacitor C2 and the third capacitor C3 are connected in parallel, the first common end is respectively connected with the power supply and the Air202GPRS communication module, and the second common end is grounded.
Specifically, referring to fig. 4, in the embodiment, three capacitors connected in parallel are specifically used for filtering, so that the circuit structure is effectively simplified while the filtering requirement is met, and the requirement of miniaturization design of the single-phase guide rail type electric energy meter is better met.
In addition, in a specific implementation mode, each capacitor can be specifically a patch capacitor, so that the occupied space is reduced, and the miniaturization design of the single-phase guide rail type electric energy meter is better realized.
In conclusion, the single-phase guide tracked electric energy meter that this application provided sets up GPRS communication module and replaces traditional power line carrier communication module to carry out data communication through GPRS communication module, thereby better overcome the technical defect of power line carrier communication scheme, can effectively improve communication interference killing feature, break through the limitation of communication range, communication distance, have good environmental suitability, maintain convenience and operation security.
Because the situation is complicated and cannot be illustrated by a list, those skilled in the art can appreciate that there can be many examples in combination with the actual situation under the basic principle of the embodiments provided in the present application and that it is within the scope of the present application without sufficient inventive effort.
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 single-phase guide rail type electric energy meter provided by the application is described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are 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.
Claims (9)
1. A single-phase guide tracked electric energy meter characterized in that includes:
the system comprises an electric energy meter, a GPRS communication module and an antenna;
the electric energy meter is used for metering electric energy data;
and the GPRS communication module is respectively connected with the electric energy meter and the antenna and used for sending the electric energy data metered by the electric energy meter through the antenna.
2. The single-phase guide rail type electric energy meter according to claim 1, wherein the GPRS communication module is specifically an Air202GPRS communication module.
3. The single-phase guide rail type electric energy meter according to claim 2, wherein the Air202GPRS communication module is connected with the electric energy meter through a UART serial port.
4. The single-phase rail-mounted electric energy meter according to claim 3, further comprising:
and the communication indicating circuit is connected with the GPRS communication module and is used for indicating the running state of the GPRS communication module.
5. The single-phase rail electric energy meter of claim 4, wherein the communication indication circuit comprises:
the LED comprises a first resistor, a second resistor, a third resistor, a light emitting diode and a triode; wherein, the one end of first resistance connect in Air202GPRS communication module, the other end of first resistance connect in the base of triode, the projecting pole ground connection of triode, the collecting electrode of triode connect in the one end of second resistance, the other end of second resistance connect in emitting diode's negative pole, emitting diode's positive pole is connected the power, the both ends of third resistance connect respectively in the base and the projecting pole of triode.
6. The single-phase rail-mounted electric energy meter according to claim 5, wherein each resistor is a chip resistor.
7. The single-phase rail-mounted electric energy meter according to claim 6, further comprising:
and the filter circuit is connected with a power supply and the Air202GPRS communication module.
8. The single-phase rail-mounted electric energy meter according to claim 7, wherein the filter circuit comprises:
a first capacitor, a second capacitor and a third capacitor; the first capacitor, the second capacitor and the third capacitor are connected in parallel, a first common end is respectively connected with the power supply and the Air202GPRS communication module, and a second common end is grounded.
9. The single-phase rail-mounted electric energy meter according to claim 7, wherein each capacitor is a patch capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920704430.XU CN210090555U (en) | 2019-05-16 | 2019-05-16 | Single-phase guide rail type electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920704430.XU CN210090555U (en) | 2019-05-16 | 2019-05-16 | Single-phase guide rail type electric energy meter |
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| Publication Number | Publication Date |
|---|---|
| CN210090555U true CN210090555U (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920704430.XU Active CN210090555U (en) | 2019-05-16 | 2019-05-16 | Single-phase guide rail type electric energy meter |
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