On February 28th, the novel coronavirus Epidemic Prevention and Control Command of Sanya issued the Notice of the novel coronavirus Epidemic Prevention and Control Command of Sanya on a case of COVID-19 diagnosed by a migrant worker from the province;

　　On February 24, 2022, a migrant worker from Hainan entered Hainan with a 24-hour negative nucleic acid certificate, and on February 27, he was in Sanya.The results of nucleic acid test in Hainan Hospital of PLA General Hospital were abnormal. On February 28th, it was confirmed as a confirmed case (light) in COVID-19 by the Provincial Center for Disease Control and Prevention.Sanya immediately launched an emergency plan, implemented isolation control and collaborative investigation for relevant personnel, and implemented control and disinfection measures in relevant places. The leaders and experts of the provincial epidemic prevention and control headquarters rushed to the scene to guide the disposal work. At present, the person has been transferred to the designated hospital for isolation treatment.

　　The preliminary results show that the activity track of this person is as follows:

　　At 14:50 on February 24th, I flew from Tianjin to Sanya with my children and mother-in-law with the certificate of negative nucleic acid test, arrived at Phoenix Airport at 18:45, took the internet car (Joan BC3000) at 19:30, checked in at 20:21, and ate in the hotel room at 20:58.

　　At 09:00 on February 25th, we had breakfast buffet in the western restaurant on the first floor of the hotel. At 10:18, we took the online car (Joan BGB671) to the Tianya Haijiao Scenic Area, without lunch. At 14:09, we took the online car (Joan BD41680) and returned to the hotel. At 18:58, take the online car (Qiong BD05581) to have dinner at Lanzhou Ramen Restaurant in Donghe Lane, Longhai, Haitang District, and at 19:49, take the online car (Qiong BD23566) to return to the hotel. Take-out snacks at 20:02.

　　On February 26th, at 09:00, breakfast buffet was held in the western restaurant on the first floor of the hotel. At 10:58, we took a bus ride (Joan BD00931) to visit wuzhizhou. At 13:30, we had lunch at the Pirate Bar restaurant on the island. At 15:22, we took a bus ride (Joan BD08260) to return to the hotel. At 19:08 and 19:21, we took delivery and had dinner at the hotel.

　　At 8:28 on February 27th, I arrived at Hainan Hospital, General Hospital of the People’s Liberation Army (Qiong BD08900) for nucleic acid sampling. After that, I took a shuttle bus (Qiong BD47397) and returned to the hotel. At 09:30, I had a buffet breakfast in the western restaurant on the first floor of the hotel. I didn’t have lunch. At 18:00, I ate in the children’s restaurant on the first floor of the hotel and ordered takeout. At 19:00, I received a notice from Hainan Hospital, the General Hospital of the People’s Liberation Army that the nucleic acid result was abnormal and immediately transferred to Sanya Central Hospital for isolation treatment.

　　If there are people with the same track at the same time, they should immediately report to the Municipal CDC and the Municipal Epidemic Prevention and Control Headquarters (Tel: 88273769, 1668969122, 18689701622); If you have left Sanya, please report to the local CDC or epidemic headquarters, and cooperate with the implementation of relevant epidemic control measures. If you hide it, once serious consequences are caused, the relevant personnel will be held accountable according to law.

　　Please pay attention to the information released by the official authority, don’t panic, don’t believe in rumors, don’t spread rumors, and actively cooperate with the epidemic prevention and control work. At the same time, we should continue to tighten the string of epidemic prevention and control, maintain a high sense of protection, adhere to scientific prevention and control measures such as wearing masks, washing hands frequently, ventilation frequently, not gathering, and keeping a safe distance, develop good personal hygiene habits, consciously cooperate with epidemic prevention and control work such as temperature measurement and health code inspection when entering and leaving public places, and vaccinate Covid-19 vaccine as soon as possible. If fever, dry cough, fatigue, runny nose, sore throat, decreased taste and smell, conjunctivitis and myalgia occur,

[Original Truck House] Trinity Mini Charging and Replacing Station debut! The whole station can charge and replace 22400kWh of electricity in a single day, and the service mileage in a single day can meet the operation demand of 14000km, accounting for only 35.3㎡, and it can be returned to the station in 8 hours at the earliest and in 1.5-2 years. Compared with the large-scale power exchange stations with 7 million and 8 million at present, no matter which data of Sany Mini Station is put in today’s power exchange industry, it is quite amazing.

Driven by the "double carbon" policy, the economy of new energy heavy trucks has been effectively verified, and lower operating costs have prompted more fuel vehicle users to switch to the embrace of new energy heavy trucks. The sales volume of new energy heavy trucks continues to increase, but the reasons that limit its rapid growth are also clear: purchase cost, cruising range and recharge speed. Obviously, under this opportunity, power exchange operation has become the key to breaking down barriers.

So, why is the J321 mini-power station different from "Heavy"? Next, let’s analyze these figures, The Secret Behind.

First of all, J321 charging and replacing station is different from the traditional power station. All the equipment has been debugged in advance, highly integrated and assembled in containers, and can be quickly moved to the site for assembly according to the construction period. It only takes 35.3㎡ to get off the station, and the whole journey can be completed in 8 hours, even less than half a day. For most teams with fixed operation scenes, this means that the Sany Mini Station will not cause too much space occupation and too much space cost, and even the mixing station in the mountains can easily build the station.

The core behind these data is "integration and modularization". The main body of Sany Mini Station is composed of upper and lower containers. The size of the whole station is 10.7m in length, 3.3m in width and 6m in height. In general, the fixed height of the top replacement electrical channel is 4.5 meters. In order to realize the installation of the replacement trolley, hanger, battery bottom bracket and track in the remaining 1.5 meters space, Sany Heavy Truck has independently developed and designed this, thus realizing the high integration of the replacement parts and reducing the height.

In addition, in terms of integration and modularization, Sany Heavy Truck has highly integrated main components such as main control cabinet, station control cabinet, charging unit and charging terminal in the mini station through independent research, development, design and testing, thus realizing the "reduction" of the overall size, covering an area of only 35.3 square meters.

As for the charging and replacing capacity of Sany Mini Station, just like its J321 name, it has three charging positions, two charging terminals and a buffer position, which can supply five batteries at the same time, and the battery replacement time for a single vehicle is less than 5 minutes. More importantly, it can charge and replace 22400kWh in a single day. What does this mean? We calculate the power consumption per kilometer of trams at a relatively high rate of 1.6kWh/km. This station can provide 14000km of service capacity for the fleet every day, which can easily cover the charging and replacing needs of a small fleet of 10-30 vehicles.

It is reported that the whole station of Sany Mini Station is equipped with three batteries for the vehicle to quickly change power, while the external two charging terminals can quickly charge two cars. So, can the speed of replenishing energy at Sany Mini Station keep up with the rhythm? This involves a particularly intelligent technology-flexible distribution of charging power.

Flexible charging pile is actually a kind of high-power and high-efficiency charging equipment, which mainly consists of two parts: charging main cabinet and charging terminal. Flexible distribution of charging power can be realized through electronic control system. In the power exchange station, when multiple battery packs need to be charged at the same time, the system will reasonably distribute the output power according to the different charging power required by each battery pack, so as to quickly complete the charging and replacing, which can effectively improve the utilization rate and turnover rate of the charging unit.

There are two 600kW charging cabinet in Sany Mini Station. Through intelligent and flexible charging strategy, the charging power of each charging station can be dynamically adjusted independently, and the charging power of a single station can reach 300kW at the highest. Its flexible charging strategy is to meet the charging and replacing requirements of the battery pack in the station first, and then distribute the remaining power to the external charging terminal.

For example, it gives priority to allocating more charging power to the battery pack in the station. When the battery pack in the station is fully charged, the external charging terminal can dynamically increase the charging power to 300kW. In this way, the utilization rate of the charging unit can be improved more efficiently, thus reducing the investment of the high-power charging unit.

Maybe everyone is curious, how does such a power exchange station realize rapid power exchange? Combined with the power exchange process of Sany mini-station, it roughly includes the steps of vehicle authentication, accurate positioning, battery disassembly and replacement, etc. The whole process is all automatic, and it can be done in 3-5 minutes, even without losing the refueling time of the fuel car.

As we all know, commercial vehicles, as production tools, have extremely harsh working environment. Apart from standard roads, unpaved roads are also their main battlefields. In this case, it is very likely that the top of the battery pack will be covered with dust and snow, which will lead to the positioning error of the battery pack. To this end, Sany Heavy Truck has carried out tests and "visual recognition training" in different venues and different climatic conditions, thus realizing the rapid power exchange of electric heavy trucks.

What kind of technology is behind this speed? There are two key points here, the accurate positioning of the vehicle and the battery pack, and the automatic unlocking of the battery pack base. First of all, Sany Mini Station determines the position of the vehicle and battery pack through the combination of remote sensing positioning system (3D camera, ultrasonic sensor)+voice prompt system+guide light. Its highlight lies in a large number of scene tests and picture training, even if the vehicle is under different lighting conditions and different obstacles, it is also applicable.

For the driver, the operation is also extremely simple. If there is an error in the parking position during the vehicle parking process, the voice and visual detection scheme can provide better guidance for the driver in time. After the parking is completed, the battery automatic charging/unlocking technology independently developed by Sany Heavy Truck can realize automatic power change in the whole process without additional operation.

From the perspective of investment in fixed assets, the investment in power station replacement mainly focuses on three aspects: equipment replacement, line investment and battery investment. Compared with the multi-million-dollar investment in large-scale power exchange station, the minimum investment of Sany Mini Station is less than 1 million (the power exchange station does not contain batteries) and the investment cycle of 1.5-2 years is obviously more attractive. So, what efforts has Sany Mini Station made in "helping customers reduce investment costs"?

Higher utilization rate:There is a very important concept in the operation of power station, utilization rate. If the overall utilization rate of a large-scale power exchange station is not high, there are few power exchange vehicles and the frequency of power exchange is low, it will lead to a long return period and even serious losses. According to reports, for the customer group with 10-30 vehicles and a single day’s charge and exchange capacity of no more than 22400kWh, the utilization rate of Sany Mini Station can even reach over 80% in some operating scenarios, which can realize quick return.

Moreover, while satisfying the charging and replacing of its own fleet, Sany Mini Station can also realize the charging and replacing of other Sany electric heavy truck fleets by scanning code payment, thus improving the utilization rate of power replacement. At the same time, on the operation monitoring platform of Sany Power Station, the data analysis of vehicle/station management can be provided for users, including the charging and replacing times, charging and replacing degrees, charging and replacing costs and other data, which can provide customers with the calculation basis of investment return.

Flexible combination of in-station configurationThe whole station of Sany Mini Station is independently developed and manufactured by Sany Heavy Truck, mastering the core technologies such as electric control system, station control system, charging system and guidance system, with more controllable cost, economy and practicality. In addition, the flexible configuration combination of mini-stations also provides more possibilities for reducing investment costs.

For example, the flexible charging cabinet of Sany Mini Station can reduce the investment cost of high-power charging equipment under the condition of meeting the use requirements. The whole station only needs 1200kW charging cabinet to meet the needs of six charging stations; The further optimization of the guiding system of the power exchange channel and the reduction of unnecessary low temperature package selection in the normal temperature operation area can also achieve good cost control. Under the corresponding transportation environment, through the optimization of these "non-essential" options, the investment cost of mini-station is greatly reduced.

Various modes of cooperation:For customers who have financial pressure in the short term, Sany Heavy Truck has also launched a variety of cooperation modes, which can be bought, rented and combined. In addition to Sany’s assistance in building a station to invest in equipment and batteries, and providing customers with charging and replacing services at a very low service fee, we can also reduce the pressure on assets in a more flexible way through BOT mode (Sany Heavy Truck’s self-built power station-operation-transfer operation mode) to help customers shift heavy asset investment to asset-light strategy.

What’s the conclusion

From January to July, 2023, a total of 13,981 new energy heavy trucks were sold, of which 6,624 were replaced by electric heavy trucks, accounting for 47.38%, and they went hand in hand with pure electric heavy trucks to rank among the first echelon of new energy heavy trucks. In the long run, with the steady recovery of the economy, the application scale of heavy trucks for charging and replacing electricity will be expanded in the transportation field of iron and steel plants, electric coal plants, port enterprises and urban engineering construction enterprises. Under the background of steady climbing of utilization rate, the asset attribute of power station operation will change from heavy to light, with faster return period and stronger profitability.

Especially for Sany Mini Station, a charging and replacing power station with small floor space, strong charging and replacing power, and quick investment return period, it will be able to compete with governors and fight for the sky in the future. (Video/Trinity Card Friends House)

　　The website of Ningbo Municipal Bureau of Statistics recently published "Data of Sub-provincial Cities in 2022", which summarized the regional GDP, growth rate and general public budget revenue of 15 sub-provincial cities in China in 2022.

　　Screenshot of Ningbo Municipal Bureau of Statistics website

　　Screenshot of Ningbo Municipal Bureau of Statistics website

　　Screenshot of Ningbo Municipal Bureau of Statistics website

　　Among the 15 cities, Shenzhen (3,238.77 billion yuan), Guangzhou (2,883.90 billion yuan) and Chengdu (2,081.75 billion yuan) have GDP exceeding 2 trillion yuan. There are seven cities with GDP between 1 trillion and 2 trillion, namely Wuhan (1,886.64 billion yuan), Hangzhou (1,875.30 billion yuan), Nanjing (1,690.79 billion yuan), Ningbo (1,570.43 billion yuan), Qingdao (1,492.08 billion yuan), Jinan (1,202.75 billion yuan) and Xi ‘an.

　　Among other sub-provincial cities, the GDP of Dalian is 843.09 billion yuan, that of Xiamen is 780.27 billion yuan, that of Shenyang is 769.58 billion yuan, that of Changchun is 674.46 billion yuan, and that of Harbin is 549.01 billion yuan.

　　Among the 15 sub-provincial cities, the economic growth rate of Xi ‘an (4.4%), Xiamen (4.4%), Wuhan (4.0%) and Dalian (4.0%) broke through, and the growth rate of Changchun was -4.5%.

　　In terms of general public budget revenue, except for Nanjing, where data is missing, 9 of the 14 cities experienced negative growth, of which Harbin’s general public budget revenue last year was 26.22 billion yuan, with a growth rate of -28.3%, and the general public budget expenditure was 106.55 billion yuan, with a growth rate of 7.4%.