TWI408818B - Solar panel wireless monitoring system and method for measuring voltage value thereof - Google Patents

Abstract

The present invention discloses a wireless monitoring system with a solar device and comprises at least one solar panel, a sensor-end device, a counter IC, and a demultiplexer IC; the solar device comprises a set of solar energy conversion elements, a power-processing circuit, a plurality of status-displaying lights, a temperature-sensing module, a voltage-measuring circuit, and a first digital-to-analog converting interface; the sensor-end device comprises an RFID (radio frequency identification) module, a second digital-to-analog converting interface, and a timer. For the system, the solar device transmits the data of measured voltages and temperatures to the sensor-end device, and then the sensor-end device transmits the data to a monitoring device by the RFID module.

Description

Solar panel wireless monitoring system and method for measuring voltage value thereof

The invention discloses a solar panel wireless monitoring system, in particular to utilize a wireless communication network technology to achieve the purpose of solar panel state measurement.

The current high prices of oil and household oils around the world are already common. Oil and coal, due to the overpopulation and the large-scale use of human beings, have reduced the number of years of human oil use, and the destruction of various environmental and ecological environments on the earth due to excessive energy use. Therefore, in response to the rapid decline in oil and coal, and the increasing demand for energy, human beings have to develop alternative energy sources. At this time, it is the best time to use renewable energy.

The energy radiated by the sun is quite large. It is estimated that 34% of it is reflected back into space, 19% is absorbed by the atmosphere, and 47% is absorbed by the surface, but the energy transmitted by the sun to the earth during the year is 1.3×10 ²⁴ cards. These energies are 26,000 times the total energy used by all humans in a year, so as long as they can be used more, solar energy has the potential to become a true permanent energy source.

The use of solar panels for solar energy absorption has been a hot topic in recent years. With continuous research and improvement, the efficiency and range of use of solar panels have been increasing. In general, when the solar panel is actually used, the state parameters to be noted include temperature, humidity, and voltage. If these parameters are well monitored, the ideal use situation can be achieved. However, in the conventional solar panel monitoring operation, it is usually monitored by the staff at the site to avoid sudden abnormal conditions of the solar panel. There are also known techniques that use sensors to measure and then transmit data to the monitored equipment by line. However, due to the limited length of the line, if the solar panel is too far away from the monitoring equipment, it will be difficult to set up the line. When the line is used for a long time, there are doubts about the loss, and this is also a disadvantage.

Based on the foregoing problems, the inventors of the present invention have attempted to combine a radio frequency module with a solar panel. As shown in the first figure, it is a schematic diagram of a conventional solar panel wireless monitoring module. The conventional solar panel wireless monitoring module A combines a sensing terminal device A10 onto a solar panel A20, when the solar panel A20 After the status parameter data is measured, the sensing terminal device A10 conveniently transmits the data to one of the external servers A30 by using one of the radio frequency modules A11. Although this module overcomes the shortcomings of physical line transmission, since its architecture only allows one sensing terminal device A10 to be combined with one solar panel A20, and the sensing terminal device A10 is a higher cost component, the overall cost is incurred. Too high.

In view of this, it is necessary to develop a solar panel monitoring system that does not require wire lines for the purpose of timely monitoring, and enables one sensing terminal device to be connected to multiple solar panels at the same time to reduce the cost.

Please refer to the application form and relevant supporting documents. The contents disclosed in the present invention have been disclosed in the 5th National Electronic Design Innovation Competition held on April 25, 1998, in accordance with Article 22, Item 2 of the Patent Law. The provisions of paragraph 2: "Inventors have one of the following circumstances, and the applicants of the preceding paragraphs, and within six months from the date of their occurrence, are not subject to the provisions of the preceding paragraphs: Second, due to display in the government The present invention has not lost its novelty.

Therefore, in view of the aforementioned problems and deficiencies, the inventors have accumulated years of experience, and exerted imagination and creativity. After continuous trial and modification, the present invention has a solar panel wireless monitoring system.

The main object of the present invention is to provide a solar panel wireless monitoring system, which applies a sensing terminal device to a solar panel to measure the state parameters of the solar panel, and the measured data can be transmitted to the wireless transmission method to In the corresponding equipment, the purpose of automatic measurement is achieved, and the wireless transmission method can overcome the distance between the solar panel and the rear monitoring system.

Another object of the present invention is to provide a solar panel wireless monitoring system in which a sensing terminal device is simultaneously connected to a plurality of solar panels to perform state parameter measurement of a plurality of solar panels, thereby reducing the use cost of the components.

The present invention discloses a solar panel wireless monitoring system, comprising: at least one solar panel comprising: a set of solar energy conversion elements disposed on a first surface of the solar panel for absorbing and converting electrical energy into solar energy; a power processing circuit disposed on a second surface of the solar panel, wherein the solar energy conversion component can regulate the output of the energy converted by the solar energy; the plurality of states display the light signal, which is disposed on the solar panel On the second surface, the plurality of states display lights can activate the corresponding lights according to the state of use of the solar panel circuit; and a temperature sensing module disposed on the second surface of the solar panel, the sense of temperature The measuring module can be used to measure the instantaneous temperature value of the solar panel; a voltage measuring circuit is disposed on the second surface of the solar panel, the voltage measuring circuit can be used to measure the instantaneous voltage value of the solar panel; a digital analog signal conversion interface disposed on the second surface of the solar panel, when the solar panel exchanges signals with an external device The first digital analog conversion interface can be used to convert between the digital signal and the analog signal; a sensing terminal device is connected to the solar panel by a physical circuit, and the sensing terminal device further comprises: a radio frequency module, The temperature and voltage data measured on the solar panel can be transmitted to the external monitoring device via the radio frequency method; a second digital analog signal conversion interface can be used for digital signal and analog signal with an external device. And a timer, which can be used to process the scheduling and timing control of the signal transmission; a counting IC is electrically connected to the second digital analog signal conversion interface of the sensing terminal device, and the counting IC can be used for receiving The second digital analog signal is transmitted by the signal conversion interface, and the number of signal transmissions is accumulated; and a multiplexer IC is electrically connected to the counting IC and the solar panel, and the demultiplexer IC receives the counting IC. After the accumulated data is accumulated, the data is decoded and the voltage measurement of the specific solar panel is performed.

In order to achieve the above-mentioned purpose and effect, the inventor cooperated with the solar panel and the wireless sensing terminal device, and under the constant correction and adjustment, a solar panel wireless monitoring system of the present invention was obtained. The system architecture of the present invention will be described in detail with reference to a solar panel wireless monitoring system in accordance with a preferred embodiment of the present invention.

Please refer to FIG. 2A and FIG. 2B respectively, which are respectively a first surface structure diagram and a second surface architecture diagram of the solar panel according to the preferred embodiment of the present invention, including: a set of solar energy conversion elements 110 The first surface 101 of the solar panel 100 is disposed on the first surface 101 of the solar panel 100 for absorption and conversion into electrical energy. A power processing circuit 120 is disposed on the second surface 102 of the solar panel 100. The solar energy conversion component 110 regulates the output of the energy converted by the solar energy; the plurality of states display the light number 130, which is disposed on the second surface 102 of the solar panel 100, the plurality of states display the light 130 can be solar energy The corresponding signal is activated by the state of use of the circuit of the board 100. The plurality of status indicator lights 130 further includes at least one power indicator 131, a link indicator 132 and a warning indicator 133, and the plurality of status indicators 110 The light sensing diode (LED) is a light sensing module 140 disposed on the second surface 102 of the solar panel 100. The temperature sensing module 140 can be used for measuring The instantaneous temperature value of the solar panel 100; a voltage measuring circuit 150 disposed on the second surface 102 of the solar panel 100, the voltage measuring circuit 150 can be used to measure the instantaneous voltage value of the solar panel 100; The digital analog signal conversion interface 160 is disposed on the second surface 102 of the solar panel 100. When the solar panel 100 performs signal exchange with an external device, the first digital analog conversion interface 160 can be used for digital signals and analog signals. Conversion between the two; an output expansion slot 170, which is disposed on the second surface 102 of the solar panel 100, the output expansion slot 170 can be used to connect related devices to achieve functional expansion; and an RS232 connection 埠180, its setting The second surface 102 of the solar panel 100 can be connected to an external device for data transmission, and the external device can be a desktop computer, a notebook computer or a personal digital assistant (PDA).

Referring to the third embodiment, a solar panel wireless monitoring system architecture diagram of the preferred embodiment of the present invention includes eight solar panels 100A-100H, and the basic architecture of each solar panel 100A-100H is as follows. FIG. 2A and FIG. 2B are not described here; a sensing terminal device 200 is connected to the solar panels 100A-100H by a physical circuit, and the sensing terminal device 200 further includes a wireless radio frequency module. The group 210, a second digital analog signal conversion interface 220 and a timer 230, the radio frequency module 210 can transmit the temperature and voltage data measured on the solar panels 100A to 100H to one of the external radio frequency methods. In the rear monitoring device, the second digital analog signal conversion interface 220 can be used to perform conversion between digital signals and analog signals with an external device, and the timer 230 can be used to process scheduling and timing control of the signal transmission; 300 is electrically connected to the second digital analog signal conversion interface 220 of the sensing terminal device 200, and the counting IC 300 can be used to receive the second digital analog signal conversion interface 220. The signal is integrated with the number of signal transmissions; and a multiplexer IC 400 is electrically connected to the counting IC 300 and each of the solar panels 100A to 100H, and the multiplexer IC 400 receives the counting IC 300 After the accumulated number of times of transmission, the data is decoded and voltage measurement of the specific solar panels 100A to 100H is performed.

In the present invention, the state parameter measurement of the solar panels 100A-100H includes both temperature and voltage, and the principle of the temperature measurement is relatively simple, that is, the temperature sensing module 140 directly obtains the instantaneous temperature of the solar panels 100A-100H. The information is transmitted to the sensing terminal device 200. However, the control principle of the voltage measurement is complicated, and the inventors have developed a novel control method for the voltage measurement methods of the plurality of solar panels 100A to 100H, so the following is a measurement of the voltage of the plurality of solar panels 100A to 100H. The method is introduced.

Referring to FIG. 4, a step-by-step diagram of a method for measuring a voltage value of a solar panel wireless monitoring system according to a preferred embodiment of the present invention includes the following steps: starting; sensing timer 204 of terminal device 200 starts timing ( Step 500); the sensing terminal device 200 determines whether the timing of the timer 230 reaches 10 seconds (step 501), and if yes, proceeds to step 502, if not, repeats the step; and the sensing terminal device 200 passes the second digit The analog signal conversion interface 220 sends a party wave signal to the counting IC 300 (step 502); the counting IC 300 performs a total number of times (step 503); the counting IC 300 determines whether the number of times of accumulation is up to 8 times (step 504), and if so, Then, proceed to step 505. If no, proceed to step 506; the counting IC 300 resets the accumulated number of times to zero (step 505), and proceeds to step 506; the counting IC 300 transmits the accumulated number of times of data to the demultiplexer IC 400 ( Step 506), wherein the accumulated number of data is binary data; the multiplexer IC 400 decodes the accumulated number of times data, and outputs the voltage to the specific solar panel 100A-1 according to the obtained data after decoding. The voltage measuring circuit 150 of 00H (step 507), wherein one demultiplexer IC 400 can connect eight solar panels 100A-100H to sequentially measure the voltage values of the eight solar panels 100A-100H. The voltage measuring circuit 150 of the specific solar panels 100A-100H performs voltage measurement, and transmits the measured voltage value back to the second digital analog signal conversion interface 220 of the sensing terminal device 200 (step 508); The terminal device 200 transmits the measured voltage value to the external one of the monitoring devices by the radio frequency module 210 (step 509); and the sensing terminal device 200 determines whether the action of the voltage measurement is stopped (step 510). If yes, the process ends; if no, proceed to step 500; and end.

For the method for measuring the voltage value of the solar panel wireless monitoring system of the above preferred embodiment, a detailed description will be given below for the detailed control principle. First, for the counting principle of the counting IC 300, when the counting IC 300 receives a square wave signal sent by the sensing terminal device 200, it will accumulate a number of times, so if the number of times the counting IC 300 is originally accumulated is 0 times, then It will be accumulated a number of times, so that the cumulative number becomes one, and so on. Since the counting IC 300 used in the present invention is preset to process the accumulated number of data from 0 to 7 times, when the cumulative number of times is 8 times, it will be eliminated 0 times, and 0 times in this way. The cumulative number of cycles to 7 times. The number of times that the counting IC 300 can be accumulated is 0 times to 7 times, and the number of the solar panels 100A to 100H is up to eight.

After the accumulation of the number of completions of the counting IC 300, the binary data corresponding to the accumulated number of times is transmitted to the demultiplexer IC 400, and the cumulative number of times and the corresponding binary data are as shown in the fifth figure. For example, when the number of times accumulated by the counting IC 300 is one, the data of Q1(0)Q2(0)Q3(1) is transmitted to the multiplexer IC 400.

After the multiplexer IC 400 receives the binary data, it decodes the data, and outputs the voltage to the voltage measuring circuit 150 of the specific solar panels 100A-100H according to the decoded result to perform voltage Measurement. The binary data and its corresponding solar panels 100A to 100H are numbered as shown in the sixth figure. For example, when the binary data received by the multiplexer IC 400 is Q1(0)Q2(0)Q3(1), the voltage is output to the voltage measuring circuit 150 of the solar panel numbered 100B.

Through the above detailed description of the preferred embodiments of the present invention, the structure of the solar panel wireless monitoring system of the present invention and the measurement method of the voltage value can be clearly understood. The system architecture and measurement method of the present invention have the following advantages:

(1) The solar panel wireless monitoring module of the present invention applies a sensing terminal device 200 to the solar panels 100A to 100H to measure the state parameters of the solar panels 100A to 100H, and measures the obtained data. It can be transmitted to the corresponding device through wireless transmission, so that the purpose of automated measurement can be achieved.

(2) The solar panel wireless monitoring module of the present invention combines a sensing terminal device 200 with the solar panels 100A to 100H, and senses the information obtained by the terminal device 200 for measuring the solar panels 100A to 100H. The transmission method transmits the data, so that the distance between the conventional solar panels 100A to 100H and the rear monitoring system can be overcome.

(3) The present invention is connected to a plurality of solar panels 100A to 100H by a sensing terminal device 200. This method improves the conventional one-to-one matching, and the cost of the sensing terminal device 200 can be saved.

(4) The present invention controls the voltage value measurement by the counting IC 300 and the demultiplexer IC 400, and can effectively control the measurement scheduling of the plurality of solar panels 100A to 100H, thereby increasing the measurement efficiency.

The embodiments described above are merely illustrative of the technical spirit and characteristics of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention. Equivalent variations or modifications in accordance with the spirit of the invention are still intended to be included within the scope of the invention.

The inventor has been continually conceived and modified to finally obtain the design of the present invention, and possesses the above-mentioned many advantages. It is an excellent invention, and should conform to the requirements of the invention patent, and the application is made, and the review committee can give the invention early. Patents to protect the rights of inventors.

A. . . Solar panel wireless monitoring module

A10. . . Sensing terminal device

A11. . . Wireless RF module

A20. . . Solar panels

A30. . . server

100, 100A ~ 100H. . . Solar panels

101. . . First surface

102. . . Second surface

110. . . Solar energy conversion element

120. . . Power processing circuit

130. . . Status display light

131. . . Power Indicator

132. . . Link indicator

133. . . Warning indicator

140. . . Temperature sensing module

150. . . Voltage measuring circuit

160. . . First digital analog signal conversion interface

170. . . Output into the expansion slot

180. . . RS232 connection埠

200. . . Sensing terminal device

210. . . Wireless RF module

220. . . Second digital analog signal conversion interface

230. . . Timer

300. . . Counting IC

400. . . Demultiplexer IC

500～510. . . Voltage value measurement method step number

The first picture is a schematic diagram of a conventional solar panel wireless monitoring module;

2A is a first surface structure diagram of a solar panel according to a preferred embodiment of the present invention;

2B is a second surface structure diagram of the solar panel of the preferred embodiment of the present invention;

The third figure is a structural diagram of a solar panel wireless monitoring system according to a preferred embodiment of the present invention;

Figure 4 is a flow chart showing a method for measuring a voltage value of a solar panel wireless monitoring system according to a preferred embodiment of the present invention;

The fifth figure is the comparison table of the cumulative number of times and its corresponding binary system; and

The sixth figure is a comparison table of the binary data and its corresponding solar panel number.

100A～100H. . . Solar panels

200. . . Sensing terminal device

210. . . Wireless RF module

220. . . Second digital analog signal conversion interface

230. . . Timer

300. . . Counting IC

400. . . Demultiplexer IC

Claims (10)

A solar panel wireless monitoring system comprising: at least one solar panel comprising: a set of solar energy conversion elements disposed on a first surface of the solar panel for absorbing and converting electrical energy into solar energy; a power processing circuit And being disposed on a second surface of the solar panel, wherein the solar energy conversion component can regulate the output of the energy converted by the solar energy; the plurality of state display lights are disposed on the second surface of the solar panel The plurality of status display lights can activate the corresponding lights according to the state of use of the solar panel circuit; a temperature sensing module is disposed on the second surface of the solar panel, and the temperature sensing module is available Measure the instantaneous temperature value of the solar panel; a voltage measuring circuit is disposed on the second surface of the solar panel, the voltage measuring circuit can be used to measure the instantaneous voltage value of the solar panel; a first digital analog signal conversion The interface is disposed on the second surface of the solar panel. When the solar panel exchanges signals with an external device, the first digital class The conversion interface can be used to convert between the digital signal and the analog signal; a sensing terminal device is connected to the solar panel by a physical circuit, and the sensing terminal device further comprises: a radio frequency module, which can be used for the solar panel The measured temperature And the voltage data is transmitted to the external monitoring device via the radio frequency method; a second digital analog signal conversion interface can be used to convert the digital signal and the analog signal with an external device; and a timer can be used Processing a signal transmission schedule and timing control; a counting IC is electrically connected to the second digital analog signal conversion interface of the sensing terminal device, and the counting IC can receive the signal transmitted by the second digital analog signal conversion interface And accumulating the number of signal transmissions; and a multiplexer IC is electrically connected to the counting IC and the solar panel at the same time, and the multiplexer IC receives the accumulated data of the number of times transmitted by the counting IC, and then the data is Decode and perform voltage measurements on specific solar panels. The solar panel wireless monitoring system of claim 1, wherein the plurality of status display lights further comprises at least one power indicator light, a link indicator light, and a warning indicator light. The solar panel wireless monitoring system of claim 1, wherein the plurality of status display lights are light emitting diodes (LEDs). The solar panel wireless monitoring system of claim 1, wherein the second surface of the solar panel is further provided with an output expansion slot, and the output expansion slot can be used to connect related devices to achieve Functional expansion. The solar panel wireless monitoring system of claim 1, wherein the second surface of the solar panel is further provided with an RS232 port for connecting an external device for data transmission. A solar panel wireless monitoring system according to claim 5, wherein the external device can be selected from the following combinations: a desktop computer, a notebook computer, and a personal digital assistant (PDA). A method for measuring a voltage value of a solar panel wireless monitoring system, wherein the solar panel comprises a set of solar energy conversion components, a power processing circuit, a plurality of state display lights, a temperature sensing module, and a voltage amount a measuring circuit and a first digital analog signal conversion interface, the method comprising the following steps: (1) a timer of a sensing terminal device starts counting, wherein the sensing terminal device is connected to the solar panel by a physical line (2) the sensing terminal device determines whether the timing of the timer reaches a certain time, and if so, proceeds to step (3), and if not, repeats the step; (3) the sensing terminal device The second digital analog signal conversion interface sends a party wave signal to a counting IC; (4) the counting IC performs a cumulative number of times; (5) the counting IC determines whether the cumulative number of times reaches 8 times, and if so, Step (6) is performed, if not, step (7) is performed; (6) the counting IC resets the cumulative number of times it counts to zero, and performs step (7); (7) the counting IC counts the cumulative number of times The data is transmitted to a demultiplexer IC; (8) the demultiplexer IC decodes the accumulated number of times data, and outputs the voltage to a voltage measuring circuit of a solar panel according to the obtained data after decoding; 9) a voltage measuring circuit of the solar panel performs voltage measurement, and transmits the measured voltage value to the second digital analog signal conversion interface of the sensing terminal device; (10) the sensing terminal device borrows Transmitting the measured voltage value to one of the external monitoring devices by a radio frequency module; and (11) sensing the terminal device to determine whether the voltage measurement action is stopped or not, and if so, ending the step, if Otherwise, proceed to step (1). A method for measuring a voltage value of a solar panel wireless monitoring system as described in claim 7 wherein the specific time described in step (2) is 10 seconds. The method for measuring the voltage value of a solar panel wireless monitoring system, as described in claim 7, wherein the cumulative number of times described in step (6) is data of the binary system. For measuring a solar panel wireless as described in claim 7 A method of monitoring a voltage value of a system, wherein a demultiplexer IC can connect eight solar panels to sequentially measure voltage values of the eight solar panels.