Intelligent rain sampling device suitable for various field environments

Abstract

The invention belongs to the technical field of environmental monitoring, and relates to a rain sampling device, in particular to an intelligent rain sampling device suitable for various field environments. The device comprises three parts, i.e., a tipping bucket rain sensor, an intermediate box body and a sample box which are assembled in a separated way; the tipping bucket rain sensor is arranged on a top cover of the intermediate box body; the intermediate box body is internally provided with a funnel disc on which small funnels are evenly distributed along the circumference of the funnel disc; a motor is fixed in the center of the funnel disc; a water sample temporary storage device and a positioning plate are installed on a motor shaft; a water supply guide pipe extending to the upperpart of the small funnels is arranged on the water sample temporary storage device; the positioning plate is provided with light-transmitting seams which correspond to the small funnels and are evenly distributed; photosensitive pair transistors are arranged at the light-transmitting seams; the sample box arranged under the intermediate box body is rectangular, and the size of the sample box is the superimposed size of a full sample bottle; the tipping bucket rain sensor, the motor and the photosensitive pair transistors are connected with a single chip microcomputer interface. The device ishigh in sampling accuracy, low in power consumption, high in space utilization rate, small in volume, very suitable for long-time intelligent work in the field environments, and convenient to move.

Description

technical field [0001] The invention belongs to the technical field of environmental monitoring, and relates to a rainfall sampling device, in particular to a rainwater intelligent monitoring and sampling device. Background technique [0002] Precipitation has a great impact on the environment we depend on for survival. It is closely related to various types of water such as: surface runoff water, ground water, cave dripping water, cave spring water, lakes and reservoirs, etc. Understanding of precipitation sample collection And analysis contributes to research and applications in many fields. It can analyze precipitation isotopes and precipitation water chemistry, and can be used in agriculture, forestry, atmospheric science, water resources and environmental research. Due to the complex terrain environment in the field, there is a great need for an intelligent precipitation automatic monitoring sample collection device with a light structure, low power consumption, and st...

AI Technical Summary

Problems solved by technology

[0004] 1. Referring to the patent 201310220616.5, there are the following problems: (1) The volume is too large, the weight is too heavy, and it is inconvenient to transport and move. 24 solenoid valves are used to control the water supply of 24 sample bottles. Since there are coils and magnets inside the solenoid valve, the It has the characteristics of large volume and heavy weight

Moreover, if the 1000ml sample bottle is placed in a ring, the diameter of the sample plate needs to be at least 75-80cm, and the outer shell is larger, which is inconvenient to move and transport in the field; (2) The fixing device for the sample bottle is not considered. Consider the fixing device for the sample bottle, otherwise, if there is a slight shake, the sample bottle will be out of the original position, which will affect the positioning and sampling

[0005] 2. The reference patent 201610889446.3 has the following problems: (1) Its power device must use a high-power motor because it uses a sample disc to rotate, which consumes a lot of power and is not suitable for field environments; It is convenient to adjust the observation point flexibly in the field environment; (3) The power supply of the device adopts AC 220v, which is not suitable for the field environment

[0006] 3. Problems in the reference patent 201620821967.0: (1) The space utilization rate is not efficient enough: the sample bottle is placed in a ring, and the space in the middle part of the ring is not fully utilized, which will inevitably lead to a large volume, but the total number of collected samples is limited, only 12 bottles, round The diameter of the disc needs to be more than 50 cm

[0008] ①The power part of most sampling devices is heavy, consumes a lot of power, and has a complex structure, which is not conducive to long-term work and flexible movement in the field: one is to use solenoid valves to control sampling, and multiple sample bottles need multiple solenoid valves

There are coils and magnets inside the solenoid valve, so there must be heavy weight, large volume, and high power consumption.

The other is to use the rotation of the sample disc to complete automatic sampling. With the increase of collected water samples, the weight of the sample disc will increase, which will inevitably consume a lot of power, which is not conducive to ensuring long-term work in the field.

Some use 220v power supply, which cannot be used flexibly in the wild

[0009] ② Most of the structures are sample bottles placed in a ring, and the space utilization rate is not efficient enough: the sample bottle is placed in a ring, and the space in the middle part of the ring is not fully utilized, which will inevitably lead to a large volume, but the number of collected sample bottles is not much

Fixtures will add complexity, cost and bulk to the sample zone structure

[0011] ④ No consideration of split structure and convenient portability: The whole machine does not consider convenient split and assembly, so that it is bulky, heavy, and inconvenient to carry and move, especially in environments with complex terrain

[0012] ⑤ The input setting of the control box adopts buttons and LCD screen, which increases the volume of the control box, and sometimes it is inevitable to bring in moisture during the operation and setting, which will affect the functional safety of the control circuit board

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