An Expandable Modular Internet of Things (IoT)-Based Temperature Control Power Extender
Round 1
Reviewer 1 Report
The authors proposes a novel Internet of Things (IoT)-based temperature control power extender with two working modes of cooling and heating to solve power shortage. Where the power is turned on or off accurately and timely through the temperature sensing element, thereby avoiding unnecessary power consumption. This work can directly power on or off the power extender through the Internet.
Significant: No, the paper is not a significant advance or contribution.
Supported: No,
Referencing: some additions are necessary
Quality: The organization of the manuscript and presentation of the data and results need some improvement.
Data: Yes, but some results are necessary
Whilst the paper shows promising initial results. A key theme includes the need to focus on the novel contributions and limit the explanation of well-known methods and definitions in the field. The paper is not clear. I also recommend major reorganisation of the paper and resubmitted.
I suggest the authors the following papers for reading (other applications):
https://doi.org/10.3390/s21010196
https://doi.org/10.3390/su13010338
https://doi.org/10.3390/s21020491
https://doi.org/10.3390/app11020686
https://doi.org/10.3390/electronics8121483
https://doi.org/10.3390/s21030738
https://doi.org/10.3390/wevj10020029
https://doi.org/10.3390/mi12020103
https://doi.org/10.3390/electronics9020228
https://doi.org/10.3390/en12091610
https://doi.org/10.3390/en10111871
https://doi.org/10.3390/en14040942
https://doi.org/10.3390/en10020204
https://doi.org/10.3390/s21041244
https://doi.org/10.3390/en14040926
https://doi.org/10.3390/electronics10040428
https://doi.org/10.3390/electronics10040426
https://doi.org/10.3390/en14040911
Author Response
Responses to Reviewer 1 Comments
The authors proposes a novel Internet of Things (IoT)-based temperature control power extender with two working modes of cooling and heating to solve power shortage. Where the power is turned on or off accurately and timely through the temperature sensing element, thereby avoiding unnecessary power consumption. This work can directly power on or off the power extender through the Internet.
Significant: No, the paper is not a significant advance or contribution.
Response #1:
In the revised article, we have summarized the contributions of this article as follows.
In summary, the proposed IoT-based temperature control power extender main provides the following main contributions:
- The power is turned on or off accurately and timely through the temperature sensing element, thereby avoiding unnecessary power consumption and achieving the purpose of energy-saving.
- When the proposed power extenders are used in large-scale farms, the commands are transmitted to other slave power extenders through Wi-Fi 2.4G wireless transmission, saving setting staffing.
- Old machines and equipment can have smart functions through the proposed power extender, and their switches can be controlled remotely through a mobile device.
Supported: No,
Referencing: some additions are necessary
Quality: The organization of the manuscript and presentation of the data and results need some improvement.
Data: Yes, but some results are necessary
Whilst the paper shows promising initial results. A key theme includes the need to focus on the novel contributions and limit the explanation of well-known methods and definitions in the field. The paper is not clear. I also recommend major reorganisation of the paper and resubmitted.
I suggest the authors the following papers for reading (other applications):
https://doi.org/10.3390/s21010196
https://doi.org/10.3390/su13010338
https://doi.org/10.3390/s21020491
https://doi.org/10.3390/app11020686
https://doi.org/10.3390/electronics8121483
https://doi.org/10.3390/s21030738
https://doi.org/10.3390/wevj10020029
https://doi.org/10.3390/mi12020103
https://doi.org/10.3390/electronics9020228
https://doi.org/10.3390/en12091610
https://doi.org/10.3390/en10111871
https://doi.org/10.3390/en14040942
https://doi.org/10.3390/en10020204
https://doi.org/10.3390/s21041244
https://doi.org/10.3390/en14040926
https://doi.org/10.3390/electronics10040428
https://doi.org/10.3390/electronics10040426
https://doi.org/10.3390/en14040911
Response #2:
Based on the references you recommend, add the following paragraphs and references to the article after study and summary.
The emerging IoT technology usually uses wireless networks to propagate commands and receive responses [11]. However, if a large number of nodes respond via wireless networks simultaneously, serious conflicts may occur-- this phenomenon is well known as ACK/feedback-implosion problem [12]. Besides, if the node responds immediately after receiving the command, the response will also interfere with the command distribution. On the other hand, if the node responds slowly (for example, waiting for a while for the command distribution to complete), the response will be delayed. Thus it will increase the overall delay of the system.
Many existing studies are trying to alleviate congestion in the low-power wireless networks to improve reliability and latencies. However, most of them only focus on one side of the problem: some only try to improve the downward command propagation phase [13-18]. Some focus on improving the upward response collection phase [19-24]. Since the command phase, data packet, and the response phase data packet will conflict by themselves and conflict with each other. Hence, focusing on one side is not enough to provide adequate performance for actual IoT applications. As a result, they must be considered jointly [11].
Author Response File: 
Author Response.pdf
Reviewer 2 Report
Comments to the authors
Manuscript number: electronics-1121113
Title: An Expandable Modular Internet of Things (IoT)-Based Temperature Control Power Extender
1) The first sentence in the abstract does not mean in the context of the paper. “Population growth has brought about the problem of a lack of natural resources.” What do you mean by natural resources? This sentence can only cause confusion.
2) Mention clearly the contribution(s) of the manuscript.
3) Cybersecurity is a crucial issue in I-T-based control systems. Some relevant attack types are: 1) false data injection (10.1145/1267060.1267062), 2) replay attack (10.1109/ALLERTON.2019.8919762), and 3) denial of service (10.1109/SURV.2011.041110.00022). The authors need to discuss security, at least as a remark.
4) It is not clear from Figure 2 why the proposed scheme reduces power consumption.
5) More details about the communication module is required. Any impact of latency in communication of the performance of the system?
6) How is Figure 11 generated? Is the relationship linear?
7) How many experiments have been carried out to generate Table 5?
Author Response
1) The first sentence in the abstract does not mean in the context of the paper. “Population growth has brought about the problem of a lack of natural resources.” What do you mean by natural resources? This sentence can only cause confusion.
Response #1 :
Thank you very much for your valuable suggestions. We have revised the abstract.
2) Mention clearly the contribution(s) of the manuscript.
Response #2:
Thank you very much for your valuable suggestions. We have added a paragraph in the abstract and introduction sections to clearly summarize the contributions of this article.
3) Cybersecurity is a crucial issue in I-T-based control systems. Some relevant attack types are: 1) false data injection (10.1145/1267060.1267062), 2) replay attack (10.1109/ALLERTON.2019.8919762), and 3) denial of service (10.1109/SURV.2011.041110.00022). The authors need to discuss security, at least as a remark.
Response #3:
Thank you very much for your valuable suggestions. We have remarked network attacks in the conclusion section as our future work.
4) It is not clear from Figure 2 why the proposed scheme reduces power consumption.
Response #4:
We are very about Figure 2 is an error. We have redrawn Figure 2. According to the parameters, the proposed power extender can automatically power off to achieve power-saving.
5) More details about the communication module is required. Any impact of latency in the communication of the performance of the system?
Response 5:
Regarding the related problems caused by the communication module's data delay, the timestamp is mentioned in the first paragraph on page 10. The system will synchronize the time with the main server every minute, avoiding the related problems caused by time out of synchronization and data delay.
6) How is Figure 11 generated? Is the relationship linear?
Response 6:
Figure 11 shows the relationship between ESR and T value, which is drawn based on the T and ESR columns in Table 3. It can be known from equation (3) that the ESR is inversely proportional to the electric energy consumed by an industrial fan per hour Eph using the proposed power extender. From equation (1), Eph is proportional to T, so it can be seen that ESR is inversely proportional to T. The longer the startup time, the ESR will be the worse. As a result, it is a linear relationship.
7) How many experiments have been carried out to generate Table 5?
Response 7:
In this article, there are 249 people in the questionnaire survey, of which 47% are males, and 53% are females. The analysis results are shown in Table 5.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
The Authors responded adequately to all my comments/suggestions .
Reviewer 2 Report
No more comments.
