CN218850895U - Meter reading communication system based on LoRa - Google Patents
Meter reading communication system based on LoRa Download PDFInfo
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- CN218850895U CN218850895U CN202222634426.5U CN202222634426U CN218850895U CN 218850895 U CN218850895 U CN 218850895U CN 202222634426 U CN202222634426 U CN 202222634426U CN 218850895 U CN218850895 U CN 218850895U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The utility model is suitable for a wireless communication technology field relates to a communication system checks meter based on loRa, include: the system comprises a first module MCU, a USB-to-serial port circuit, a power circuit and a LoRa module, wherein the USB-to-serial port circuit is used for converting USB signals into serial port signals, the power circuit is used for providing 3.3V power, the first module MCU is used for transmitting and forwarding data and modifying communication parameters of the LoRa module, and the LoRa module can be configured with various communication parameters; the second module MCU is used for forwarding data issued by the first module to the electric meter and forwarding data uploaded by the electric meter to the first module, the radio frequency chip is used for realizing wireless communication transmission, and the antenna is used for receiving wireless signals of the first module in the air. The utility model has simple structure and rapid working process, adopts the LoRa communication technology, greatly improves the effective communication distance and realizes remote meter reading; the communication parameters can be freely configured according to the field signal intensity, the compatibility is good, and stable and reliable communication is realized.
Description
Technical Field
The utility model belongs to the technical field of wireless communication, especially, relate to a communication system checks meter based on loRa.
Background
In areas such as Lame and Africa, along with gradual implementation of electric power transformation, the traditional mechanical electric meter and the door-to-door meter reading scheme need to be updated urgently. However, due to the reasons of economy, planning, implementation difficulty and the like, the power carrier communication technology cannot be adopted on a large scale to realize meter reading, the meter reading by using the wireless communication technology becomes the first choice of the areas, the wireless communication technology has various types, such as Wifi, bluetooth, 2G/3G/4G, NB-Iot and the like, and the technologies have respective characteristics, although the wireless communication technology is applied to the field of power meter reading to a certain extent, the technologies still have relevant defects, such as Wifi and Bluetooth communication frequency band of 2.4GHz, the farthest communication distance of only about 100 meters and easy interference; 2G/3G/4G belongs to a public network communication frequency band, the cost is high, and communication can be realized only by arranging base stations in a large scale; NB-Iot belongs to public network communication frequency band, and communication can be realized by means of a base station.
The patent with publication number CN212486648U provides a portable automatic meter reading and checking device, which comprises a holding rod, a supporting rod, a display module, a camera module, a main control module, a power supply module and a WIFI chip; one end of the supporting rod is connected with the holding rod; the other end of the supporting rod is provided with a bendable structure and is connected with the camera module through the bendable structure; the display module and the main control module are arranged on the supporting rod; the power supply module is used for providing required working power supply for the display module, the camera module, the main control module and the WIFI chip; and the main control chip is in wireless communication with the server through the WIFI chip. The communication mode that this patent adopted is Wifi, thereby still has the short and easy receiving of communication distance and disturbed influence the problem of data accuracy.
Therefore, how to implement remote meter reading and make communication more stable and reliable is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a communication system checks meter based on loRa to solve among the prior art can't realize remote meter reading, the unstable problem of communication.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a communication system checks meter based on loRa, include: a first module and a second module; the first module comprises a first module MCU, a USB-to-serial port circuit, a power circuit and a LoRa module, wherein the power circuit is respectively in communication connection with the first module MCU, the USB-to-serial port circuit and the LoRa module are respectively in communication connection with the first module MCU, the USB-to-serial port circuit is used for converting a USB signal into a serial port signal supported by the first module MCU, the power circuit is used for converting a 5V power provided by a USB into a 3.3V power required by the first module, the first module MCU is used for transmitting and forwarding received data and modifying communication parameters of the LoRa module, and the LoRa module is used for modulating and demodulating the data to realize wireless communication transmission and can configure various communication parameters; the second module includes second module MCU, radio frequency chip and antenna, second module MCU with radio frequency chip communication connection, second module MCU is used for right the data that first module was issued carry out address verification and forward to the ammeter to with the data direct forwarding that the ammeter was uploaded to first module, the radio frequency chip is used for carrying out modem in order to realize wireless communication transmission to the signal, the antenna is used for receiving aerial wireless signal of first module.
Furthermore, the first module further comprises an indicator light for indicating the communication state of the first module, and the indicator light is in communication connection with the first module MCU.
Furthermore, the second module further comprises a matching network module for ensuring that the transmission of the wireless signal on the printed board is not attenuated, and the matching network module is in communication connection with the radio frequency chip.
Furthermore, the second module further comprises a radio frequency switch for reducing signal transmission loss and isolating the transmitted and received signals, and the radio frequency switch is in communication connection with the second module MCU and the antenna respectively.
Further, the model of the first module MCU is HC32F005, and the model of the second module MCU is R5F100BE.
Furthermore, the type of the USB-to-serial port circuit is FT232.
Further, the model of the power supply circuit is SPX1117M3.
Furthermore, the model of the LoRa module is WFCM-910LRPA-V1.0.
Further, the radio frequency chip is of a type LLCC68.
Furthermore, the type of the radio frequency switch is AS179-92LF.
The utility model provides a communication system of checking meter based on loRa compares with prior art, has following beneficial effect at least:
the utility model has simple structure and rapid working process, adopts the LoRa communication technology, greatly improves the effective communication distance and realizes remote meter reading; the communication parameters can be freely configured according to the field signal intensity, the compatibility is good, and stable and reliable communication is realized.
Drawings
In order to illustrate the solution of the present invention more clearly, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without inventive work.
Fig. 1 is a first module hardware structure diagram of a meter reading communication system based on LoRa according to an embodiment of the present invention;
fig. 2 is a second module hardware structure diagram of a meter reading communication system based on LoRa according to an embodiment of the present invention;
fig. 3 is the embodiment of the utility model provides a communication system's that checks meter flow chart that checks meter based on loRa.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, for example, the terms "length," "width," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or position illustrated in the drawings, which are for convenience of description only and are not to be construed as limiting of the present disclosure.
The terms "including" and "having," and any variations thereof, in the description and claims of this invention and the description of the above figures are intended to cover non-exclusive inclusions; the terms "first," "second," and the like in the description and in the claims, or in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. In the description and claims of the present invention and in the description of the above figures, when an element is referred to as being "fixed" or "mounted" or "disposed" or "connected" to another element, it can be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.
Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The utility model provides a communication system of checking meter based on loRa is applied to the wireless communication between host computer and the ammeter, and communication system of checking meter based on loRa includes:
a first module and a second module; the first module comprises a first module MCU, a USB-to-serial port circuit, a power supply circuit and a LoRa module, wherein the power supply circuit is connected with the first module MCU, the USB-to-serial port circuit and the LoRa module are respectively in communication connection with the first module MCU, the USB-to-serial port circuit is used for converting a USB signal into a serial port signal supported by the first module MCU, the power supply circuit is used for converting a 5V power supply provided by a USB into a 3.3V power supply required by the first module, the first module MCU is used for transmitting and transmitting received data and modifying communication parameters of the LoRa module, the LoRa module is used for modulating and demodulating the data to realize wireless communication transmission, and various communication parameters can be configured; the second module comprises a second module MCU, a radio frequency chip and an antenna, the second module MCU is in communication connection with the radio frequency chip and is used for carrying out address verification on data issued by the first module and forwarding the data to the electric meter, the data uploaded by the electric meter are directly forwarded to the first module, the radio frequency chip is used for modulating and demodulating signals to realize wireless communication transmission, and the antenna is used for receiving wireless signals of the first module in the air.
The utility model has simple structure and rapid working process, adopts LoRa communication technology, greatly improves effective communication distance, and realizes remote meter reading; the communication parameters can be freely configured according to the field signal intensity, the compatibility is good, and stable and reliable communication is realized.
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
The utility model provides a communication system of checking meter based on loRa is applied to the wireless communication between host computer and the ammeter, and loRa is called Long Range (remote) entirely, is a low-power consumption, remote LAN wireless communication technique, and the host computer indicates the computer that can directly send control command, and in this embodiment, combine figure 1, figure 2 and figure 3, communication system of checking meter based on loRa includes: the USB-based wireless communication system comprises a first module MCU, a USB-to-serial port circuit, a power circuit and a LoRa module, wherein the power circuit is in communication connection with the first module MCU, the USB-to-serial port circuit and the LoRa module respectively, the USB-to-serial port circuit and the LoRa module are in communication connection with the first module MCU respectively, the USB-to-serial port circuit is used for converting a USB signal into a serial port signal supported by the first MCU, can support a Windows system and an Android system and has a model of FT232, the power circuit is used for converting a 5V power provided by a USB into a 3.3V power required by the first module, and has a model of SPX1117M3, the first module MCU is used for transmitting and forwarding received data and modifying communication parameters of the LoRa module, and has a model of HC32F005 and the LoRa module is used for modulating and demodulating the data to realize wireless communication transmission, and can also be configured with various communication parameters, and has a model of WFCM-910LRPA-V1.0; the second module comprises a second module MCU, a radio frequency chip and an antenna, the second module MCU is in communication connection with the radio frequency chip, the second module MCU is used for carrying out address verification on data issued by the first module and forwarding the data to the electric meter, the data uploaded by the electric meter is directly forwarded to the first module, the type is R5F100BE, the radio frequency chip is used for modulating and demodulating signals to realize wireless communication transmission, the type is LLCC68, the antenna is a spring antenna and is used for receiving wireless signals of the first module in the air and transmitting the signals of the printed board to the air.
Further, in this embodiment, as shown in fig. 1, the first module further includes an indicator light for indicating a communication state of the first module, the indicator light is in communication connection with the first module MCU, and the model is LL-S170PVC-V1-2B.
Further, in this embodiment, as shown in fig. 2, the second module further includes a matching network module for ensuring that transmission of the wireless signal on the printed circuit board is not attenuated, so as to ensure stability of wireless communication.
Further, in this embodiment, AS shown in fig. 2, the second module further includes a radio frequency switch for reducing loss of signal transmission and isolating the sending and receiving models, so AS to maintain stability of signal transmission and make communication more stable and reliable, where the model is AS179-92LF.
The communication flow of the meter reading communication system based on the LoRa provided by the present invention is described below with reference to fig. 1, fig. 2 and fig. 3:
the communication totality divide into the host computer, first module, second module triplex, USB that first module was given respectively to USB mouth output 5V power changes serial circuits and power supply circuit power supply, power supply circuit converts the 5V power into first module MCU and the required 3.3V power of the normal work of loRa module, the second module is then through the ammeter power supply, first module communicates with the host computer through the USB mouth, first module will check meter the order and outwards transmit through wireless mode, the effective communication distance of loRa communication technology is 1000 meters, consequently, the ammeter in effective communication distance can all realize checking meter.
The whole communication flow is as follows:
when the customer need carry out the meter reading, first module passes through USB with the host computer and is connected, integrated meter reading order passes through USB on the host computer and issues to first module, first module passes through antenna transmission to aerial with the order that the host computer was issued, pass through USB to serial circuits with data transmission for first module MCU, first module MCU control loRa module is with data do the second module of passthrough forwarding to the ammeter end, the ammeter address of carrying in the data is checked earlier after the second module received data, confirm that correct back rethread serial ports are forwarded to the ammeter, transmit the data that the ammeter returned to the host computer through former communication channel at last, once accomplished the flow of checking meter reading promptly.
The meter reading communication system based on the LoRa of the embodiment has the advantages of simple structure and quick working process, greatly improves the effective communication distance by adopting the LoRa communication technology, is not easy to be interfered, and realizes stable remote meter reading; the communication parameters can be freely configured according to the field signal intensity, the compatibility is good, and stable and reliable communication is realized.
It is to be understood that the above-described embodiments are merely preferred embodiments of the present invention, rather than all embodiments, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. The present invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. While the invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.
Claims (10)
1. The utility model provides a meter reading communication system based on loRa which characterized in that includes:
a first module and a second module;
the first module comprises a first module MCU, a USB-to-serial port circuit, a power circuit and a LoRa module, wherein the power circuit is respectively in communication connection with the first module MCU, the USB-to-serial port circuit and the LoRa module are respectively in communication connection with the first module MCU, the USB-to-serial port circuit is used for converting a USB signal into a serial port signal supported by the first module MCU, the power circuit is used for converting a 5V power provided by a USB into a 3.3V power required by the first module, the first module MCU is used for transmitting and forwarding received data and modifying communication parameters of the LoRa module, and the LoRa module is used for modulating and demodulating the data to realize wireless communication transmission and can configure various communication parameters;
the second module includes second module MCU, radio frequency chip and antenna, second module MCU with radio frequency chip communication connection, second module MCU is used for right the data that first module was issued carry out the address and verify and forward to the ammeter to directly forward to the data that the ammeter was uploaded to first module, the radio frequency chip is used for carrying out modem in order to realize wireless communication transmission to the signal, the antenna is used for receiving aerial the wireless signal of first module.
2. The LoRa-based meter reading communication system according to claim 1, wherein the first module further comprises an indicator light for indicating the communication state of the first module, and the indicator light is in communication connection with the first module MCU.
3. The LoRa-based meter reading communication system according to claim 1, wherein the second module further comprises a matching network module for ensuring that wireless signals are transmitted on a printed board without attenuation, and the matching network module is in communication connection with the radio frequency chip.
4. The LoRa-based meter reading communication system according to claim 3, wherein the second module further comprises a radio frequency switch for reducing signal transmission loss and isolating the transmission and reception signals, and the radio frequency switch is in communication connection with the second module MCU and the antenna respectively.
5. The LoRa-based meter reading communication system according to claim 1, wherein the first module MCU is HC32F005 and the second module MCU is R5F100BE.
6. The LoRa-based meter reading communication system according to claim 1, wherein the USB to serial port circuit is FT232.
7. The LoRa-based meter reading communication system according to claim 1, wherein the model of the power supply circuit is SPX1117M3.
8. The system of claim 1, wherein the model number of the LoRa module is WFCM-910LRPA-V1.0.
9. The LoRa-based meter reading communication system according to claim 1, wherein the radio frequency chip is LLCC68.
10. The LoRa-based meter reading communication system according to claim 4, wherein the radio frequency switch is AS179-92LF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222634426.5U CN218850895U (en) | 2022-10-08 | 2022-10-08 | Meter reading communication system based on LoRa |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222634426.5U CN218850895U (en) | 2022-10-08 | 2022-10-08 | Meter reading communication system based on LoRa |
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| Publication Number | Publication Date |
|---|---|
| CN218850895U true CN218850895U (en) | 2023-04-11 |
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| CN202222634426.5U Active CN218850895U (en) | 2022-10-08 | 2022-10-08 | Meter reading communication system based on LoRa |
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| CN (1) | CN218850895U (en) |
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- 2022-10-08 CN CN202222634426.5U patent/CN218850895U/en active Active
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