In the recent years, due to rapid development of economy and continuous increase of national income, people have higher requirement for the quality of living and environment. However, the traditional community environment and property model are no longer able to meet the high quality environment of high income people. At the same time some companies do not pay attention to the community greening and invest less in the maintenance fund, and do not pay attention to it, this is the problem that many companies are still rebuilding and neglecting maintenance, results in low level of community greening maintenance. So, this is very difficult to consolidate the greening achievement and to play the landscape role and ecological function of greening vegetation.
There are three parts to sow and seven parts to parts to nourish, and the importance of post maintenance of community green vegetation is self evident, and the watering is the indispensable parts of post maintenance of green vegetation, not directly related to the health status of the community vegetation, but also the way of watering. It can also affect the overall image of the community. After the survey of high end communities in the Beijing, it was found that there are three problems in the community irrigation.
1.Traditional watering method:
In china mostly high-end communities used manual irrigation system, which is connected to the pipes at water intake plug for irrigation. The workload is more and the area covered is limited, and results in low irrigation efficiency. At the same time manual watering is difficult to manage, and the image and quality of staff are difficult to unify, it has certain impact on the quality and image of high-end community.
2.Watering cost is high:
Due to rapid development of the society and aging of population, decreased the labor force, that results in higher cost of labor. In developed countries like USA and Canada the labor cost is high as product cost. The high end communities have high quality and high technical requirement for maintenance workers, making the labor cost of greening maintenance higher.
3.Wastage of water resources:
The artificial watering uses flood irrigation method. The amount of watering at each period is far more than the requirement of green vegetation. This wastes a large amount of water each time, and this cause the soil hypoxia, hinders root respiration, reduce physiological function, and lead to the greening. In this way the vegetation dies, and badly affect the beauty of green vegetation.
Program design principles
Build an intelligent community and realize "unmanned watering":
The control of all equipment during the watering process can be completed through mobile APP and computer client. After connecting to the smart camera, the staff can monitor the watering site in the office.
Make watering a landscape:
The smart retractable nozzles used in the smart watering system are only exposed to the ground when watering, and the spray angle and scattering direction of the nozzles are adjustable, making spraying a landscape.
Scientific and precise irrigation, saving water resources:
The intelligent irrigation system can automatically operate and shut down according to the water demand patterns of different green vegetation, so that the green vegetation is always in the best growth environment.
Program overview
TSC smart unmanned intelligent watering system is an IoT ecosystem independently developed by the Beijing TSC smart. This system connects to various wireless sensors like soil temperature, soil moisture, soil pH value, soil EC value, weather station, PM 2.5, and the sensing devices, to collect crop living environment data in real time, and transfer data to smart gateway through LoRa wireless communication technology. This is combined with the water demand pattern of crop in different growth cycles, and the user can perform remote watering through mobile application. At the same time the system can also operate automatically, connecting to wireless sensing equipment, control equipment’s to automatically turn on and off the water pumps, solenoid valves, and other devices to achieve intelligent, remote, and automatic irrigation operation for community greening.
During the operation, equipment groups communicate through wireless communication LoRa IoT protocol. The user can perform one-click watering through mobile application, saving labor expenses and making more efficient, accurate, and scientific watering. After this the user can query irrigation record and can export the report record through the computer client.
Program design principles
Improve the quality of the community and create an intelligent community
After the introduction of the intelligent watering system, staff can remotely and wirelessly control watering through mobile APP or computer client, realizing "unmanned watering" in the community and greatly improving the quality of the community.
Reduce workload and save labor costs
After the introduction of intelligent watering system, the operator can operate the large area of watering work by one person, through the mobile app, computer client, which greatly improve the work efficiency. Therefore, after the introduction to integrated watering, and fertilizer technology in later period, one person can complete the watering, pests, and disease prevention work. This will not only reduce the maintenance personnel, but also allow the maintenance worker to spend lot of time and energy on vegetation construction and weeds removal, this process will help to save efforts, time and work done well.
Save labor cost analysis
Details | Quantity | Remark |
---|---|---|
Maintenance worker/person | 12 | The number of community caregivers is calculated as 12 people, and the per capita monthly salary is calculated as 4,000 yuan |
Annual labor cost/yuan | 576000 | Maintenance worker expenses for one year |
Use smart irrigation systems (annual savings) | 428343.12 |
Save water
According to statistical data the shrubs, lawns, and the green landscape requires about 1.2 to 1.8 meters of water per square meter per year , and the (median value is 1.5 meters), for example taking 786000 square meter of green area in high end residential community, with community area 1310000 square meters and the greening rate is 60%. Its annual water demand is 1179000 meters, and the current irrigation method is flood irrigation, with much more amount of water than the actual demand of vegetation. The Tianzheng high tech intelligent irrigation system automatically operate and stop watering according to the actual demand of green vegetation, here the watering time and amount is controlled. After multiple experiments and application, the results show 30% water saving and can save at least 353700 meters of water per years, which is equal to 736 households with four members (calculated on the basis of 120 meters per ca-pita annual water consumption), this will reduced workload and labor cost.
Save water
Details | Quantity | Remark |
---|---|---|
Green area(m³) | 786000 | The total area of the community is 1,310,000 m2, with a greening rate of 60% |
Total annual water demand of green vegetation(m³) | 1179000 | The annual water demand of green vegetation in the community is about 1.2m3-1.8 m3, taking the median value of 1.5 m³/year |
(m3)(m³) | >1179000 | Artificial watering is mostly flood irrigation, and the amount of watering is much greater than the actual water demand of the vegetation |
Smart irrigation system water saving(m³) | >353700 | Intelligent watering system, watering on demand, can save at least 30% of water |
Annual watering volume of intelligent watering system(m³) | <825300 | |
Annual domestic water consumption for a family of four(m³) | 480 | Per capita annual domestic water consumption is calculated based on 120m³ |
Amount of water saving available to owners (household) | >736 | The amount of water saved can be used by 736 households of four for at least one year |
Savings on water bills per year (yuan) | >884250 | Community greening water is calculated at 2.5 yuan/m (including sewage charges) |