1. There are obstacles in the alarm information transmission of the traditional fixed gas detection and alarm system.
In today's traditional fixed gas detection and alarm system, the alarm information is transmitted through the cable connecting the on-site fixed gas detector and the alarm controller in the control room. When the alarm information is transmitted to the control room, the staff in the control room should inform the field staff to evacuate through communication equipment.
In this mode, it is actually the personnel in the control room who control the life and death of the field staff, so it is very important whether the information can be transmitted to the work site in time, accurately and effectively.
In this mode, due to the inaccurate transmission of alarm information, it is easy to cause an accident that the evacuation route passes through the gas leakage point, which is called panic; Because the alarm information is not transmitted in time, even the alarm information is not transmitted, for example, there is no one in the control room, which is easy to cause alarm information transmission. In this way, the field staff lost precious escape time, and accidents are often difficult to avoid.
So how to give an accurate alarm to the field staff at the first time when the danger occurs and reduce human factors? My company's wireless Internet of Things technology can solve this problem. This technology eliminates the influence of human factors when dangerous situations occur, shortens the response time of field workers, increases the escape time and reduces casualties.
In this mode, it is actually the personnel in the control room who control the life and death of the field staff, so it is very important whether the information can be transmitted to the work site in time, accurately and effectively.
In this mode, due to the inaccurate transmission of alarm information, it is easy to cause an accident that the evacuation route passes through the gas leakage point, which is called panic; Because the alarm information is not transmitted in time, even the alarm information is not transmitted, for example, there is no one in the control room, which is easy to cause alarm information transmission. In this way, the field staff lost precious escape time, and accidents are often difficult to avoid.
So how to give an accurate alarm to the field staff at the first time when the danger occurs and reduce human factors? My company's wireless Internet of Things technology can solve this problem. This technology eliminates the influence of human factors when dangerous situations occur, shortens the response time of field workers, increases the escape time and reduces casualties.
In today's traditional fixed gas detection and alarm system, the alarm information is transmitted through the cable connecting the on-site fixed gas detector and the alarm controller in the control room. When the alarm information is transmitted to the control room, the staff in the control room should inform the field staff to evacuate through communication equipment.
In this mode, it is actually the personnel in the control room who control the life and death of the field staff, so it is very important whether the information can be transmitted to the work site in time, accurately and effectively.
In this mode, due to the inaccurate transmission of alarm information, it is easy to cause an accident that the evacuation route passes through the gas leakage point, which is called panic; Because the alarm information is not transmitted in time, even the alarm information is not transmitted, for example, there is no one in the control room, which is easy to cause alarm information transmission. In this way, the field staff lost precious escape time, and accidents are often difficult to avoid.
So how to give an accurate alarm to the field staff at the first time when the danger occurs and reduce human factors? My company's wireless Internet of Things technology can solve this problem. This technology eliminates the influence of human factors when dangerous situations occur, shortens the response time of field workers, increases the escape time and reduces casualties.
2. The traditional portable gas detector has a high risk factor of hysteresis alarm.
The traditional portable gas detector can only passively detect gas, but can't actively obtain the information of gas overrun detection. That is to say, only when the gas diffuses can the traditional portable gas detector give an alarm when it touches the gas. However, workers wearing traditional portable gas detectors have been exposed to dangerous gases at the same time. In other words, the traditional portable gas detector did not play an early warning role. At this time, if someone who works at the scene fainted because of dangerous gas poisoning, it is impossible for other staff to find it at the first time. When someone is found to be poisoned and faint, the best rescue time is often missed, causing casualties. This also shows the lag of traditional portable instruments in transmitting information.
The wireless portable gas detector produced by Dongfang Alarm Company can realize the function of timely and accurate transmission of dangerous information between workers. It can receive and send wireless alarm signals. When a member of an operation team wears a wireless portable gas detector to work in a dangerous area, if someone fainted due to poisoning, the wireless portable gas detector worn by the staff will give an audible and visual alarm and send out a wireless alarm signal when the alarm value is reached. Within 200 meters, the wireless portable gas detectors of other operation team members can receive their alarm information at the same time. The alarm information is synchronized with the gas information detected by the wireless portable gas detector of the poisoned fainter. In other words, the workers' team members can know exactly what the gas environment of the poisoned fainting person is.
In this way, the rapid response of group workers in the event of danger is realized, the rescue time is increased and the casualties are reduced.
When I was smoked down before, even if my partner found me the first time, he didn't dare to come and save me. Why? ? Because he can't make an accurate judgment about the gas environment around me, it will cause many accidents.
Second, the technical level is in a leading position in the same industry-the first in the world.
Innovation: The innovation of this project lies in the application of Internet of Things technologies such as wireless communication technology, mobile development technology and distributed information processing technology. , realizing the interconnection of detection and personnel and disposal institutions in the field of gas detection and alarm, so as to realize effective detection and alarm and reduce the loss of life and property.
Key technologies: Key technologies include stable wireless communication technology, gas detection technology, intrinsically safe explosion-proof technology and distributed information processing technology.
Technical level: the development and application of this project is based on the retrieval of relevant journals, patents and domestic and foreign industry technologies, and rarely involves the discussion of related applications, let alone similar products on the market. The technical level of this project is currently at the international leading level.
Third, the application mode has achieved revolutionary changes.
1、? Our advantages in reforming the traditional fixed gas detection and alarm system.
Transmitting accurate alarm information to field workers in time through wireless technology will lead to zero accidents caused by human factors in the process of information transmission.
Detailed wireless transmission of alarm information: alarm position display, leakage concentration display, three-level early warning, acousto-optic vibration prompt.
Reduce the difficulty of transformation: it can be seamlessly connected with gas detectors of other manufacturers.
2、? The alarm information transmission of portable gas detector has achieved revolutionary changes.
Wireless portable instruments can transmit alarm signals to each other, which can not only passively detect the gas environment, but also actively receive alarm signals from other convenient instruments.
It is realized that one person in the operation team gives an alarm, and other team members can know the gas environment in which the alarm person is located in time and accurately, which shortens the reaction time of the shift members and takes targeted measures according to the specific situation.
3、? It fills the blank of online real-time monitoring of hot work site and confined space operation.
According to the requirements of GB3087 1-20 14 national standard, continuous and uninterrupted real-time monitoring of confined space operations that may release harmful substances is realized.
Let the alarm information in the confined space be timely and effectively transmitted to the security personnel outside the confined space, so that they can take corresponding rescue measures according to the gas environment in the confined space.
Four. Necessary artifact for online detection of hot work site and confined space operation
Confined space and solution of potential safety hazards in temporary hot work site
The national standard GB3087 1-20 14 was implemented on June 1 this year. Why was it not implemented before? ? It is very necessary to monitor the confined space in real time by analyzing some workplace accidents in the past and summing up experience. There are often many accidents.
Past? What kind of operation link is the temporary operation site, including the confined space? What kind of workflow?
Before on-site hot work, the laboratory should go to the site to sample, analyze and test the gas environment, and the work can be carried out only after it meets the operating standards. During the operation, gas sampling and analysis shall be conducted every 4 hours or half an hour. It's also said that there will be 12 hour, and this cycle will continue until the end of hot work. This is intermittent, not real-time detection. There is a big omission in such an intermittent link: when the on-site workers are hot, there are several large time periods that are unsupervised, that is, gas leaks may occur during these time periods.
Therefore, there are two main reasons for casualties in confined space operations.
First, there is no real-time monitoring at the scene, the working environment is changing, and the field personnel don't know.
Second, you can only trust the portable instrument, but the alarm information transmission of the portable instrument is lagging behind (just mentioned). Often, when the portable instrument informs you, you have been in a dangerous environment for a long time enough to be fatal. For example, your portable instrument gives a first-class alarm of hydrogen sulfide, but it may be 2 meters away from you or even 1 meter with a distance of tens of thousands of PPM. (Let me talk about the concept of tens of thousands of PPM. If there is 100PPM of hydrogen sulfide in the confined space, the operator will faint in just two minutes, not to mention tens of thousands of PPM. Therefore, it is dangerous to say that he is lagging behind.
Let's see how our GQB-200A7 is applied in an open place. Take A7 to the downwind near the possible leakage point, and monitor the site environment in real time. Once a leak occurs in the operation site, the equipment is exposed to the change of gas environment, and then an alarm is generated to send a wireless signal to the surrounding team members. What's different from the past? Our mobile device GQB-200A7 didn't exist in the past. We were still under construction when the water leaked, so it was difficult for us to find this situation at the first time. When our portable instrument gives an alarm, the gas has spread to our space, which is very dangerous. And our A7 was at the leak point, so it was A7 that came into contact at the first time. When the gas has not floated near us, the wireless signal has already told us where the alarm occurred before the gas, because the position of A7 can be edited, and then we will know the alarm information at the first time and then evacuate.
Fifth, announce the advantages of the system.
Realize uninterrupted and continuous detection of hot work site.
It fills the gap of intermittent measurement of gas environment.
Wireless signals isolate people from dangerous environment.
The close linkage between people and safety equipment is realized.
Loading explosion-proof air pump monitoring can synchronize the information transmission of gas environment inside and outside the closed space.