CN105763158B - Method for monitoring photovoltaic power station through mobile phone - Google Patents

Abstract

The present invention provides a method for monitoring a photovoltaic power station through a mobile phone, comprising the following steps: an inverter collects status information of a photovoltaic array, and an electromagnetic radiation sensor is arranged on the inverter; an information collection uploader is used to collect status information of the photovoltaic array and status information of the inverter; the information collected by the information collection uploader is transmitted to a server through a SIM card or a USIM card; an intelligent terminal displays the status information of the photovoltaic array and the status information of the inverter after receiving the stored data through wireless transmission, can monitor the inverter and the photovoltaic array status at the same time, and can reduce the length of RS485 while keeping data transmission unimpeded, thereby saving costs.

Description

Method of monitoring photovoltaic power plants through mobile phones

technical field

The invention relates to a method for monitoring a photovoltaic power station, in particular to a method for monitoring a photovoltaic power station through a mobile phone.

Background technique

Since the beginning of the 21st century, the development of renewable energy has become a trend. More and more countries and regions have realized that only the development of renewable energy is the way out to solve energy and environmental problems. As a steady stream of renewable energy, Solar energy has long been valued by people, but it has not been applied on a large scale due to cost and scale issues. Since the beginning of the 21st century, with the advancement of industry and technology, the cost of solar energy has dropped on a large scale, and it is currently in the embryonic stage of large-scale application. The green, pollution-free and easy-to-maintain features of solar energy make solar energy the most promising renewable energy source in the 21st century.

Solar power plants are mostly located on rooftops and in some remote areas, monitoring and maintenance is a long-term and arduous task. Different from the real-time monitoring of the power grid, it is difficult for many distributed solar power plants and independent power plants to achieve 24-hour real-time monitoring. The current solar energy can only simply monitor the power station data, and does not have real-time remote alarm and remote real-time reminder functions, which is very unfavorable for the promotion and maintenance of solar power stations.

In addition, in the prior art, an RS485 bus is used to connect the inverter and the information collection uploader, and wireless transmission is used between the information collection uploader and the server. Due to the limitation of the transmission distance of the wireless signal, the information collection uploader must be close to the server and far away from it. inverter, so the length of the RS485 bus is increased, and the status monitoring of the inverter is usually not carried out in the prior art, and the photovoltaic inverter is an important part of the photovoltaic power generation system, and its performance and operating status will directly Affecting the efficiency of the entire photovoltaic power generation system, and a photovoltaic inverter in an abnormal working state will endanger the safe operation of the connected grid. Therefore, it is necessary to conduct an online evaluation of the working status of the photovoltaic inverter to detect the problems of the photovoltaic inverter in advance and avoid the impact on the safety of the power grid due to the failure of the photovoltaic inverter.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the above technologies, so as to provide a method for monitoring photovoltaic power plants through mobile phones, which can monitor the status of inverters and photovoltaic arrays at the same time, and can reduce the length of RS485 while maintaining smooth data transmission, saving cost.

The technical solution adopted in the invention is as follows: the method for monitoring a photovoltaic power station through a mobile phone includes the following steps:

S1: The inverter is connected to the photovoltaic array, the inverter collects the status information of the photovoltaic array, and the inverter is equipped with an electromagnetic radiation sensor for detecting its electromagnetic radiation;

S2: Both the inverter and the electromagnetic radiation sensor are connected to the information collector through the RS485 bus. The information collection uploader is used to collect the status information of the photovoltaic array collected by the inverter and the status information of the inverter collected by the electromagnetic radiation sensor. The information is collected and uploaded. A SIM card or USIM card is set in the device, and the SIM card or USIM card is connected to a signal booster;

S3: The information collected by the information collection uploader is transmitted to the server of the monitoring system through SIM card or USIM card data transmission. The signal collected by the uploader is stored for data;

S4: The server is equipped with a WIFI transmission module. The WIFI transmission module is connected to the router through wireless WIFI. The router is connected to the smart terminal through the wireless network. The WIFI transmission module sends the stored data in the server to the smart terminal through a wireless route. The smart terminal After receiving the stored data, the status information of the photovoltaic array and the status information of the inverter are displayed.

A further improvement is that: the smart terminal is a mobile phone or a tablet computer.

A further improvement is: the inverter is provided with a first electromagnetic coil for converting electric energy into electromagnetic waves for transmission, and the information collection uploader is provided with a second electromagnetic coil for converting electromagnetic waves into electric energy, and the first The two electromagnetic coils are connected with the control chip, and the control chip is connected with the power connector of the information collection uploader.

It is further improved that: both the first electromagnetic coil and the second electromagnetic coil are arranged on the PCB board, the surface of the PCB board of the second electromagnetic coil is provided with a metal detection and cleaning device, and the metal detection and cleaning device includes a temperature Probe, the cleaning brush that slides along the surface of the PCB board, the PCB board is provided with a sliding screw and a guide rail, the cleaning brush is provided with a screw sleeve that matches the sliding screw, The guide member matched with the guide rail, the sliding screw is driven to rotate by the cleaning motor, and the temperature probe is connected with the controller of the cleaning motor.

By adopting the aforementioned technical scheme, the beneficial effect of the present invention is: by setting the electromagnetic radiation sensor to detect the electromagnetic radiation of the inverter, thereby judging the working state of the inverter, realizing real-time monitoring of the inverter, and the information collection uploader Data transmission with the server through SIM card or USIM card instead of traditional wireless signal transmission can increase the transmission distance, so that the information collection uploader can be closer to the inverter, the length of RS485 can be reduced, and the production cost can be saved.

Description of drawings

Fig. 1 is a schematic block diagram of the present invention;

Figure 2 is a frame diagram of photovoltaic array monitoring signal transmission;

Fig. 3 is a schematic diagram of a metal detection and cleaning device.

Among them: 1. Photovoltaic array; 2. Inverter; 3. Electromagnetic radiation sensor; 4. Information collection uploader; 5. SIM card or USIM card; 6. Signal booster; 7. Server; 8. WIFI transmission module; 9. Router; 10. Intelligent terminal; 11. First electromagnetic coil; 12. Second electromagnetic coil; 13. Cleaning brush; 14. Slide screw; 15. Guide piece; 16. Screw sleeve; 17. Guide piece; 18. Clean the motor.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1 and Figure 2, the present invention discloses a method for monitoring a photovoltaic power station through a mobile phone, including the following steps:

S1: The inverter 2 is connected to the photovoltaic array 1, and the inverter 2 collects the state information of the photovoltaic array 1. The electromagnetic radiation sensor 3 used to detect the amount of electromagnetic radiation is installed on the inverter 2. Since the inverter 2 is An important part of the photovoltaic power generation system, its performance and operating status will directly affect the efficiency of the entire photovoltaic power generation system. The electromagnetic radiation of the inverter 2 is monitored through the electromagnetic radiation sensor 3, and the electromagnetic radiation of the inverter 2 is judged. In the working state, when the electromagnetic radiation of the inverter exceeds the set value, the inverter 2 is in an abnormal working state, so that an alarm can be given;

S2: Both the inverter 2 and the electromagnetic radiation sensor 3 are connected to the information collector through the RS485 bus, and the information collection uploader 4 is used to collect the status information of the photovoltaic array 1 collected by the inverter 2 and the inverter data collected by the electromagnetic radiation sensor 3 2 status information, the information collection uploader 4 is provided with a SIM card or USIM card 5, and the SIM card or USIM card 5 is connected with a signal booster 6, because the signal transmission distance of the SIM card or USIM card 5 is much longer than the wireless signal transmission, Therefore, the distance between the information collection uploader 4 and the server 7 can be increased, so that the information collection uploader 4 is closer to the inverter 2, and the length of the RS485 bus is reduced. The characteristics of weakening, by setting the signal booster 6, the transmission signal of the SIM card or the USIM card 5 is enhanced to ensure smooth signal transmission, and the signal booster 6 can be an ordinary mobile phone signal booster 6;

S3: The information collected by the information collection uploader 4 is transmitted to the server 7 of the monitoring system by means of SIM card or USIM card 5 data transmission, and the signal booster performs signal enhancement on the transmission data of the SIM card or USIM card 5, and the signal on the server 7 The storage unit stores the signal collected by the information collection uploader 4 as data, and after the server 7 stores the collected signal, the judging unit in it can also compare the signals to issue an alarm prompt;

S4: The server 7 is provided with a WIFI transmission module 8, the WIFI transmission module 8 is connected to the router 9 through wireless WIFI, the router 9 is connected to the intelligent terminal 10 through a wireless network, and the WIFI transmission module 8 transmits the stored data in the server 7 through wireless The route is sent to the smart terminal 10, and the smart terminal 10 displays the status information of the photovoltaic array 1 and the status information of the inverter 2 after receiving the stored data, and the data is transmitted between the server 7 and the smart terminal 10 through the wireless router and the WIFI transmission module 8. Signal transmission to realize remote monitoring function.

An optimized implementation manner in this embodiment is that the smart terminal 10 is a mobile phone or a tablet computer.

Since the information collection uploader 4 in the prior art uses a wired power connection to supply power to it, it is inconvenient to use. In this embodiment, because the distance between the inverter 2 and the information collection uploader 4 is relatively close, it can be realized through The method of wireless charging in the form of electromagnetic waves wirelessly supplies power to the information collection uploader 4, specifically: the inverter 2 is provided with a first electromagnetic coil 11 that converts electric energy into electromagnetic waves for transmission, and the information collection and uploading The device 4 is provided with a second electromagnetic coil 12 that converts electromagnetic waves into electrical energy. The second electromagnetic coil 12 is connected to a control chip, and the control chip is connected to the power connector of the information collection uploader 4 .

As shown in Figure 3, the first electromagnetic coil 11 and the second electromagnetic coil 12 are all arranged on the PCB board, and the surface of the PCB board of the second electromagnetic coil 12 is provided with a metal detection and cleaning device. The cleaning device comprises a temperature probe, a cleaning brush 13 which is slidably arranged along the surface of the PCB, a sliding screw 14 and a guide rail 15 are arranged on the PCB, and the cleaning brush 13 is provided with a Screw sleeve 16 matched with leading screw 14, guide member 17 matched with described guide rail 15, described sliding screw 14 is driven and rotated by cleaning motor 18, and described temperature probe is connected with the controller of described cleaning motor , when the surface of the PCB board to which the second electromagnetic coil 12 is connected has metal objects attached, it is easy to cause the temperature of the second electromagnetic coil 12 to rise rapidly, causing the second electromagnetic coil 12 to burn out, and even causing the information collection uploader 4 to be burned out , by setting the metal detection and cleaning device, the metal on the surface of the PCB can be detected in time, and the cleaning brush 13 can be used to clean it in time.

The basic principles and main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. What described in the above-mentioned embodiments and explanations is to illustrate the principles of the present invention. Under the premise of not departing from the spirit and scope of the present invention, the present invention also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention, and the claimed protection scope of the present invention is determined by the appended claims and its equivalents.

Claims (3)

1. pass through the method for monitoring mobile phone photovoltaic plant, it is characterised in that：Comprise the following steps：

S1：Inverter is connected with photovoltaic array, and inverter, which gathers to be provided with the status information of photovoltaic array, inverter, to be used for Detect the electromagnetic radiation sensor of its amount of electromagnetic radiation；

S2：Inverter and electromagnetic radiation sensor are connected by RS485 buses with information acquisition device, and information gathering is uploaded Device is used for the inverter state information for the photovoltaic array status information and electromagnetic radiation sensor collection for gathering inverter collection, SIM card or usim card are provided with information gathering uploader, SIM card or usim card are connected with Signal Booster；

S3：The information of information gathering uploader collection is transferred to monitoring system by way of SIM card or usim card data transfer The server of system, signal increase device carries out SIM card or the transmission data of usim card the storage list on signal enhancing, server The signal that member gathers information gathering uploader carries out data storage；

S4：WIFI transport modules are provided with server, WIFI transport modules are connected by wireless WIFI with router, route Device is connected by wireless network with intelligent terminal, and WIFI transport modules send out the data storage in server by wireless routing Give the state letter of the status information that photovoltaic array is shown after intelligent terminal, intelligent terminal for reception to data storage and inverter Breath；

The first magnet coil for converting electrical energy into and being transmitted after electromagnetic wave, described information collection are provided with the inverter The second magnet coil that electromagnetic wave is converted into electric energy is provided with uploader, second magnet coil is connected with control chip Connect, the power connection that the control chip gathers uploader with described information is connected.

2. the method according to claim 1 by monitoring mobile phone photovoltaic plant, it is characterised in that：The intelligent terminal is Mobile phone or tablet personal computer.

3. the method according to claim 1 by monitoring mobile phone photovoltaic plant, it is characterised in that：First electromagnetic wire Circle and second magnet coil may be contained within pcb board, and the pcb board surface of second magnet coil is provided with metal inspection Cleaning plant is surveyed, the metal detection cleaning plant includes temp probe, the cleaning hair set is slided along the pcb board surface It is provided with lead screw and guided way, the cleaning hairbrush to be provided with brush, the pcb board and matches with the lead screw The swivel nut of conjunction, the guide being engaged with the guided way, the lead screw are visited by cleaning motor-driven rotation, the temperature Head is connected with the controller of the cleaning motor.