CN209729025U - A kind of photovoltaic power station monitoring system based on WIFI and 4G network communication - Google Patents

Abstract

The utility model provides a kind of photovoltaic power station monitoring system based on WIFI and 4G network communication, it is related to photovoltaic plant monitoring field, including power module, WIFI module and 4G module, the WIFI module is connect with 4G module, the WIFI module is connect by RS-485 module with monitored device, the WIFI module and terminal device establish communication connection, and the 4G module is connect by USB interface with monitored device, and the 4G module and Cloud Server establish communication connection.The utility model solves the problems, such as that monitored device parameter setting is inconvenient and APN access point setting in erecting bed is inconvenient.

Description

A kind of photovoltaic power station monitoring system based on WIFI and 4G network communication

Technical field

The utility model relates to photovoltaic plant monitoring field more particularly to a kind of photovoltaics based on WIFI and 4G network communication Power Station Monitored Control System.

Background technique

Photovoltaic power generation has obtained popularization energetically as a kind of novel clean energy resource.It is gradually general with photovoltaic power generation And installation scale is also increasing, therefore the necessity of monitoring system also becomes more and more important, and consequently also occurs using 4G The monitoring system of network communication mode.

Although monitoring system based on 4G mobile cellular network communication modes solves monitored device (such as photovoltaic inversion Case, header box etc.) data acquisition and Communication, but such monitored device needs to carry out a series of ginseng during installation Number setting, could work normally, and can only have been connect PC machine with monitored device by RS-485 this kind of wired mode Come, by developing dedicated parameter setting software in PC machine, and then completes the parameter setting function of monitored device.

It needs to develop the dedicated end PC parameter setting software using this mode, while also needing to carry USB and turning RS-485 line To erecting bed, there is a problem of installation settings inconvenience；When monitored device outlet is overseas, since 4G mobile device accesses net Require to preset the APN access point of operator before network, and a kind of side wireless communication of the 4G network communication as direct-connected base station Formula can not carry out Direct Communication with terminal devices such as PC machine, therefore the APN access point of mobile network can not be arranged.

Utility model content

In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide one kind to be based on WIFI and 4G net The photovoltaic power station monitoring system of network communication solves the inconvenience of monitored device parameter setting and the setting of erecting bed APN access point Inconvenient problem.

In order to achieve the above objects and other related objects, the utility model provides a kind of based on WIFI and 4G network communication Photovoltaic power station monitoring system, including power module, WIFI module and 4G module, the WIFI module are connect with 4G module, institute WIFI module to be stated to connect by RS-485 module with monitored device, the WIFI module and terminal device establish communication connection, The 4G module and Cloud Server establish communication connection.

Further, the WIFI module is connect with 4G module, RS-485 module respectively by UART port.

Further, the WIFI module establishes WIFI network communication connection by WIFI antenna and terminal device, described 4G module is established 4G network communication with Cloud Server by 4G antenna and is connect.

Further, the WIFI module includes WIFI chip and its peripheral circuit, and the WIFI chip is ESP32 series Chip has dual core processor.

As described above, a kind of photovoltaic power station monitoring system based on WIFI and 4G network communication of the utility model, has Below the utility model has the advantages that

1, in the utility model, the material cost of photovoltaic plant monitoring is reduced, construction complexity and period are reduced, to drop Low construction cost.

2, in the utility model, the stability and speed of photovoltaic plant monitoring communication are improved.

Detailed description of the invention

Fig. 1 is shown as photovoltaic power station monitoring system structural schematic diagram disclosed in the utility model embodiment；

Fig. 2 is shown as photovoltaic power station monitoring system connection schematic diagram disclosed in the utility model embodiment；

Fig. 3 is shown as power module circuitry figure disclosed in the utility model embodiment；

Fig. 4 is shown as RS-485 module circuit diagram disclosed in the utility model embodiment；

Fig. 5 is shown as WIFI module circuit diagram disclosed in the utility model embodiment；

Fig. 6 is shown as 4G module circuit diagram disclosed in the utility model embodiment.

Specific embodiment

Specific other advantages and effect for understanding the utility model.The utility model can also be by addition different specific Embodiment, which adds, illustrates the embodiments of the present invention below by way of specific specific example, and those skilled in the art can be by this Content disclosed by specification is implemented or is applied easily, and the various details in this specification can also be based on different viewpoints and answer With carrying out various modifications or alterations under the spirit without departing from the utility model.It should be noted that the case where not conflicting Under, the feature in following embodiment and embodiment can be combined with each other.

It should be noted that diagram provided in following embodiment only illustrates the basic of the utility model in a schematic way Conception, only shown in schema then with related component in the utility model rather than component count when according to actual implementation, shape And size is drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its assembly layout Kenel may also be increasingly complex.

As depicted in figs. 1 and 2, the utility model provides a kind of photovoltaic plant monitoring system based on WIFI and 4G network communication System, the photovoltaic power station monitoring system includes power module, WIFI module and 4G module, and the WIFI module passes through UART port It is connected with 4G module, the WIFI module is connect by RS-485 module with monitored device, and the WIFI module passes through WIFI Antenna and terminal device establish WIFI network communication, and the 4G module establishes network communication by 4G antenna and Cloud Server.

As shown in figure 3, the power module includes capacitor C9, C25, C26, C27, C28, C29, C30, C31, C32, resistance R33, R35, R36, R37, R38, R39, inductance L1, diode D5, power supply chip U6, the 3rd pin and electricity of the power supply chip Hold one end connection of C25, C29, C30, C31, C32 and resistance R38, and is connect with power access end INV_VIN, the electricity Hold the other end ground connection of C25, C29, C30, C31, C32, the other end of the resistance R38 and the 5th pin of power supply chip U6 connect It connecing, and is connect with one end of resistance R39, the other end ground connection of the resistance R39, the 6th pin is connect with the one end capacitor C28, The other end of capacitor C28 is connect with the 2nd pin of power supply chip U6, and is connect with one end of inductance L1, and inductance L1's is another End and one end of resistance R35, capacitor C9, C26, C27 connect, and connect with the anode of diode D5, the other end of resistance R35 It is grounded by resistance R36, and is connect by resistance R37 with the 4th pin of power supply chip U6, capacitor C9, C26, C27's is another The cathode of end ground connection, diode D5 is grounded by resistance R33；

Wherein, the model MP1471 of the power supply chip U6, and the peak of the anode extraction 4G module from diode D5 It is worth electric current 3V5, draws power supply VCC from the cathode of diode D5,5V-12V wide input voltage can be met.

As shown in figure 4, the RS-485 module includes transient supression diode D6, D7, D8, resistance R27, R28, R29, R30, R31, R32, capacitor C23, triode Q5, electrical level transferring chip U5, the 6th pin and the 7th of the electrical level transferring chip U5 Resistance R31, transient supression diode D6, D7, D8, and the RS485 bus with monitored device have been arranged in parallel between pin Both ends connection, the 6th pin of the electrical level transferring chip U5 also pass through resistance R32 and connect with power supply VCC, the level conversion core Capacitor C23, and the 8th pin and power supply of electrical level transferring chip U5 have been arranged in series between the 8th pin of piece U5 and the 5th pin VCC connection, the 5th pin of electrical level transferring chip U5 and the 4th pin ground connection, the 1st pin of electrical level transferring chip U5 pass through resistance R27 exports TTL signal UT2_RX, and the 2nd pin of electrical level transferring chip U5 and the 3rd pin are connect with the collector of triode Q5, And connect with power supply VCC by resistance R28, the emitter ground connection of triode Q5, the ground level of triode Q5 pass through resistance R29 and Power supply VCC connection, and input TTL signal UT2_TX；

Wherein, the model SP3485EN-L/TR of electrical level transferring chip U5.

As shown in figure 5, the WIFI module includes the peripheral circuit of WIFI chip U2 and WIFI chip U2, the WIFI The 28th pin of chip U2 exports TTL signal UT2_TX, and the 27th pin inputs TTL signal UT2_RX, and the 17th pin exports UT1_ The 18th pin of TX, U2 input UT1_RX；

Wherein, WIFI chip U2 uses ESP32 family chip, which has dual core processor, has good data Processing capacity, direct WIFI chip U2 increase a central processor unit in outside as central processing unit, can be with Simplify circuit connection, improves the stability of photovoltaic power station monitoring system.

As shown in fig. 6, the 4G module includes the peripheral circuit of 4G chip J3 and 4G chip J3, the 4G chip J3's 11st pin inputs TTL signal UT1_TX, and the 12nd pin exports TTL signal UT1_RX, and the 10th pin exports nothing by resistance R21 Line data-signal SIM_DATA；

Wherein, for 4G chip J3 using EC20 or the Mini-PCIE chip of EC25 series, Mini-PCIE chip can be convenient Change the product for different model；Later period according to the state of development of cellular network technologies, can flexibly be changed to different schemes, such as NB-IOT chip or 5G chip etc.；4G module is connect using UART port with WIFI module, realizes the data between two modules Interaction.

For only signal input output end mouth being described in detail in the circuit description of WIFI module and 4G module, Peripheral circuit is not described in detail, the specific connection relationship of peripheral circuit is referred to Figure of description, or combines 4G The operation instruction handbook of chip J3 and WIFI chip U2 is configured, and is not specifically limited.

The working principle of the utility model is as follows:

Core of the WIFI module as photovoltaic power station monitoring system, by built-in SoftAP program, so that WIFI Module work can be worked while SAT mode in ap mode, therefore terminal device (such as mobile phone, PC machine etc.) can be at any time It is connected on the AP of WIFI, thus realize Direct Communication between terminal device and the WIFI module, and without router；WIFI After module receives the data from terminal device, monitored device is sent by RS-485 module by it, to realize quilt The parameter setting function of monitoring device；If it is determined that the data from terminal device are that the instruction of the APN of 4G network is arranged, then lead to It crosses UART port APN information is written in 4G module, realizes the setting to 4G network AP N；

After APN is provided with, 4G module receives monitoring data from WIFI module by UART interface, and passes through 4G module Monitoring data is reached into Cloud Server, the storage and analysis of data are realized by Cloud Server, will finally be counted according to the demand of user The forms such as report are presented to user accordingly.

In conclusion the utility model solves the inconvenience of monitored device parameter setting and erecting bed APN access point Inconvenient problem is set.So the utility model effectively overcomes various shortcoming in the prior art and has high industrial utilization Value.

The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.

Claims (4)

1. a kind of photovoltaic power station monitoring system based on WIFI and 4G network communication, it is characterised in that: including power module, WIFI Module and 4G module, the WIFI module are connect with 4G module, and the WIFI module is set by RS-485 module with monitored Standby connection, the WIFI module and terminal device establish communication connection, and the 4G module and Cloud Server establish communication connection.

2. the photovoltaic power station monitoring system according to claim 1 based on WIFI and 4G network communication, it is characterised in that: institute WIFI module is stated to connect with 4G module, RS-485 module respectively by UART port.

3. the photovoltaic power station monitoring system according to claim 1 based on WIFI and 4G network communication, it is characterised in that: institute It states WIFI module and WIFI network communication connection is established by WIFI antenna and terminal device, the 4G module passes through 4G antenna and cloud Server establishes 4G network communication connection.

4. the photovoltaic power station monitoring system according to claim 1 based on WIFI and 4G network communication, it is characterised in that: institute Stating WIFI module includes WIFI chip and its peripheral circuit, and the WIFI chip is ESP32 family chip, has double-core processing Device.