Photovoltaic Application Research II

zhang2017yi

Photovoltaic Application Research II [Copy link]

 

Photovoltaic application research 2: long-life maintenance-free high-rise building signal lights. High-rise buildings in cities must be equipped with signal indicator lights to prevent aircraft from colliding with buildings when flying at night. Some of the current signal indicator lights have a short lifespan, and some use city electricity. Once damaged, they need to be replaced manually, which is very inconvenient. In the event of a power outage and damage to the backup battery, manual maintenance is also required. The long-life maintenance-free high-rise building signal indicator designed by me has the following advantages: 1 It is powered by solar photovoltaic cells and does not require city electricity at all, so there is no need to consider electricity bills. 2 It has a long lifespan and is maintenance-free within ten years. It can actually be used for 20 years. 3 It uses ultra-bright light-emitting diodes as signal indicators. The signal indication is eye-catching and has a long lifespan without the need to replace bulbs. This content was originally created by EEWORLD forum user zhang2017yi. If you need to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source

qwqwqw2088

These applications are reliable and are already in large-scale use. The high-voltage warning indicator lights on the high-voltage lines of the power supply department now use solar cells. The flashing solar signal lights on the fences of construction sites are indeed solar cells.

chunyang

Such products have long been on sale, with an energy supply structure of mains electricity + solar energy + backup battery. As for maintenance-free for ten or twenty years, it is impossible. The life of the solar panel is not enough, and there are problems such as dust cleaning. In addition, the current LED cannot be used as a long-life signal light source, especially the building elevation indicator light mentioned by the OP. The brightness is not enough and the life is not enough. The OP should not work in isolation. First, understand the development of technology, what products are on the market, and what others are thinking about. Not to mention those who lack technical strength, even senior experts, without sufficient accumulation, cannot come up with anything valuable by "thinking" in a short period of time.

damiaa

This is how it is done on this street lamp. Many street lamps use photovoltaic power generation. The government also supports it.

zhang2017yi

qwqwqw2088 posted on 2017-12-21 09:15 These applications are reliable and have been widely used. Now the high-voltage warning indicator lights on the high-voltage lines of the power supply department use solar cells for construction workers...

Indeed, I did not participate in social practice, and I did not know that the high-voltage warning indicator lights on the high-voltage lines of the power supply department use solar cells.

zhang2017yi

damiaa posted on 2017-12-21 15:45 This is how it is done on the street lamp. Many street lamps use photovoltaic power generation. The government also supports it.

Good!

zhang2017yi

chunyang posted on 2017-12-21 12:37 Such products have long been on sale, with a power supply structure of city electricity + solar energy + backup battery. As for ten or twenty years of maintenance-free, it is impossible, the solar panels...

Ten or twenty years of maintenance-free, it is impossible? Because their design is different from mine! Mine can do it!

zhang2017yi

chunyang posted on 2017-12-21 12:37 Such products have long been on sale, with a power supply structure of city electricity + solar energy + backup battery. As for ten or twenty years of maintenance-free, it is impossible, the solar panels...

It is not possible to install a solar cell on ordinary electronic products and call them solar products. It is necessary to consider how many days without sunlight, how long the product can run. It is also necessary to consider the storage power capacity, lifespan, etc. The ideal solar product can run all year round without the need for manual addition and replacement of batteries.

chunyang

zhang2017yi posted on 2017-12-21 18:41 Just because an ordinary electronic product is equipped with a solar cell, it cannot be called a solar energy product. You need to consider how many days without sunlight the product will...

The question is, how do you know that others have not considered this and that they are all "ordinary electronic products equipped with a solar cell"?

zhang2017yi

chunyang posted on 2017-12-21 18:47 The question is, how do you know that others have not considered that they are all "ordinary electronic products with a solar cell installed"?

I have purchased it, but you haven't, so you refute me. Your language is sharp and your eloquence is good!

chunyang

zhang2017yi posted on 2017-12-21 18:35 Maintenance-free for 10 or 20 years, is that impossible? Because their design is different from mine! Mine can do it!

To be able to do it requires evidence. How did you obtain your MTBF data? Or do you have it?

zhang2017yi

chunyang posted on 2017-12-21 18:50 You need evidence to be able to do it. How did you get your MTBF data? Or do you have any?

Now there is no funding, it is only feasible in theory! If my research funds are returned, I can see successful new products within 2 years!

zhang2017yi

chunyang posted on 2017-12-21 18:50 To be able to do this, you need evidence. How did you get your MTBF data? Or do you have any?

MTBF-MTBF, which stands for Mean Time Between Failures, is an indicator to measure the reliability of a product (especially electrical products). The unit is hours. First, the MTBF data of LEDs is known, and they can be used for more than ten years. Second, the battery life is also known. Do you admit this?

chunyang

zhang2017yi published on 2017-12-21 18:49 I have bought it, but you haven't bought it, so you refute me. Your language is sharp and your eloquence is good!

Have you bought anti-collision signal lights? Even if you have, I wonder how much you spent? Logically speaking, only if you buy all the anti-collision signal lights of all models in the world today and find that all of them are as you said, then the statement that these signal lights are "ordinary electronic products with a solar cell installed" can be established. In fact, solar-powered electronic products must have special adaptive designs. This is technical common sense that electronic engineers should know, and they should know it without buying it.

chunyang

zhang2017yi posted on 2017-12-21 18:53 Now there is no funding, it is only feasible in theory! If my research funding is returned, I can see successful new products within 2 years!

If you are really capable, I suggest you find a job as a development engineer, which is not difficult to find in Chengdu. If you can do well in your job, why worry about not having "research funding"?

chunyang

zhang2017yi published on 2017-12-21 18:59 MTBF-MTBF, which stands for Mean Time Between Failures, is a measure of the reliability of a product (especially electrical products)...

There are many types of LEDs, and the working life of ultra-high brightness ones is far less than 10 years. Please read the device manual yourself. Note that the anti-collision signal light is always on, and it must be on when the illumination is lower than the specified value. The battery life includes solar cells and batteries. Moreover, the MTBF of LEDs and batteries themselves is not the MTBF of products. There are special routines for developing high-reliability products.

zhang2017yi

chunyang posted on 2017-12-21 19:17 There are many kinds of LEDs. The working life of super bright ones is far less than 10 years. Please read the device manual yourself. Note that the anti-collision signal lights are always on, and the illumination is lower than the specification...

The anti-collision signal lights of high-rise buildings are always on? ! Who told you that?

zhang2017yi

chunyang posted on 2017-12-21 19:10 If you are really capable, I suggest you find a job as a development engineer, which is not difficult to find in Chengdu. If you can do well in your job, you will not have to worry about not having "...

I have my own funds. Isn't this asking me to give up my property in disguise?

chunyang

zhang2017yi posted on 2017-12-21 19:40 The anti-collision signal lights on high-rise buildings are always on? ! Who told you that?

The “always on” here means indicating the working state.

chunyang

zhang2017yi posted on 2017-12-21 19:41 I have my own funds. Isn't this asking me to give up my own property in disguise?

Is that acceptable? Is finding a job like giving up my own property? That's ridiculous.