CN107576314A - Float type depopulated zone rivers and lakes automatic monitoring system - Google Patents

Abstract

A kind of float type depopulated zone rivers and lakes automated monitor, the equipment include ball float, multi-functional tether cable and water-bed device, and ball float, tether cable and water-bed device are sequentially connected；Communication apparatus is provided with the top of described ball float, bottom is provided with flow sensor, cooling-water temperature sensor and water quality sensor, and effectively signal can be transmitted, and realizes the on-line monitoring of the water quality of water body in lake, water velocity and water temperature；It is made up of outside ball float solar panel, it is possible to achieve oneself power supply, the operation of low-power consumption；There is provided surface pressure sensor and bottom pressure sensor, obtains the relative water level in lake and then measurement by pressure differential, overcomes influence of the environmental factors such as atmospheric pressure change to level measuring.

Description

Buoy-type automatic monitoring system for rivers and lakes in no man's land

technical field

The invention belongs to the technical field of water area monitoring, and in particular relates to a buoy-type automatic monitoring system for rivers and lakes in uninhabited areas.

Background technique

At present, my country's water resources are tense and water pollution is serious. Water quality monitoring is an important basis for water resource management and protection. The water quality information provided by water quality monitoring is particularly important, especially the monitoring of water quality of some lakes that are in urgent need of development. The monitoring of sea areas, rivers, and lakes where monitoring points need to be changed at will is mainly realized through buoy-type water quality monitoring stations. Through monitoring, the water depth, flow velocity, and water quality of key sections of the main river basin can be grasped in a timely manner.

Most of the existing buoy-type water quality monitoring systems are used in rivers and lakes with superior monitoring conditions. There are few applications for monitoring rivers and lakes in uninhabited areas with high cold, high salinity, and harsh climate. Existing buoy-type water quality monitoring equipment exists The following disadvantages: (1) can no longer be deployed in no-man's land without construction conditions; (2) cannot adapt to the harsh natural environment of no-man's land.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and provide a buoy-type automatic monitoring system for rivers and lakes in uninhabited areas, which can operate stably in rivers, lakes and other environments under harsh climates in uninhabited areas, without the need for infrastructure, There is no need to establish a communication base station, and the operation and maintenance costs are low.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A buoy-type automatic monitoring system for rivers and lakes in uninhabited areas, including a floating ball, an underwater device, and a mooring cable connected between the floating ball and the underwater device; the underwater device is naturally embedded in the bottom of the water, and the inside of the floating ball is set There is a control center and communication equipment, and the outside of the floating ball is equipped with a solar panel; the lake automatic monitoring system is equipped with a lake sensor unit to realize the measurement of water level, flow velocity, water quality, and water temperature parameters; the control center is connected with the lake water sensor unit, solar battery The board is electrically connected, and the data monitored by the lake sensor unit is transmitted to the external data center through the communication equipment.

Further, the bottom of the floating ball is provided with a water surface pressure sensor, and the top of the underwater device is provided with a bottom pressure sensor, and the mooring cable has a built-in transmission cable to electrically connect the bottom pressure sensor with the control unit; The specific gravity is equivalent to the density of the measured lake water; the automatic monitoring system obtains the data of the water surface pressure sensor and the bottom pressure sensor, calculates the pressure difference between the water surface and the bottom of the water, and then measures the relative water level parameters of rivers and lakes.

Further, the water surface pressure sensor is arranged 0.3-2m below the water surface.

Further, the bottom of the floating ball is provided with a flow rate sensor, a water temperature sensor and a water quality sensing device.

Further, the solar panels are arranged on the outer ring of the upper hemisphere of the floating ball along 360°.

Further, the antenna of the communication device is set on the top of the floating ball.

Further, both the water surface pressure sensor and the water bottom pressure sensor are pressure sensors, and the pressure sensor is electrically connected to the control center.

Further, the water quality sensing device includes water quality sensors for dissolved oxygen, Ph value, density, salinity and turbidity indicators, and the water quality sensors are all electrically connected to the control center.

Further, the flow sensor is an ultrasonic flow sensor, which is electrically connected with the control center.

Further, the multi-functional mooring cable is composed of a protective sheath, a built-in multi-core transmission cable, a plastic filler and an aramid rope.

Further, the outer surface of the underwater device is sealed by spraying aluminum, and the underwater device is coated with long-term antifouling paint before launching to prevent the attachment of marine organisms.

Further, the underwater device is a ship anchor or a metal weight.

The beneficial effects of the present invention are:

1. The floating ball of the present invention is equipped with communication equipment, and the bottom of the floating ball is equipped with a flow rate sensor, a water temperature sensor and a water quality sensing device, which can effectively transmit the detected signals, and realize the online monitoring of the real-time water flow speed, water temperature and water quality of the lake. monitor.

2. The control center of the present invention calculates the data of the water bottom pressure sensor and the water surface pressure sensor, calculates the pressure difference between the water surface and the water bottom, and then measures the relative water levels of rivers and lakes, which overcomes the influence of environmental factors such as atmospheric pressure changes on water level measurement. At the same time, the density of the mooring cable is equivalent to that of water, which avoids the influence on the pressure measurement results.

3. The outside of the floating ball of the present invention is composed of 360° covered solar panels, which can realize self-powered and low-power operation.

4. The device of the present invention can be thrown by aircraft, ships, etc. without infrastructure. At the same time, it can resist the harsh natural environment of no-man's land, work stably, and completely solve the problem of long-term automatic monitoring of rivers and lakes in no-man's land.

Description of drawings

Fig. 1 is a structural schematic diagram of the automatic monitoring equipment for rivers and lakes of the present invention.

Fig. 2 is a schematic diagram of signal transmission of the automatic monitoring equipment for rivers and lakes of the present invention.

Fig. 3 is a working schematic diagram of the automatic monitoring equipment for rivers and lakes of the present invention.

In the figure: 1. Floating ball, 2. Multifunctional mooring cable, 3. Underwater device, 4. Communication equipment, 5. Flow rate sensor, 6. Water temperature sensor, 7. Water quality sensing device, 8. Control center, 9. Solar panel, 11. water surface, 12. water bottom, 21. water surface pressure sensor, 22. water bottom pressure sensor.

detailed description

The principle and working process of the invention will be described below in conjunction with specific embodiments, and the examples listed are only used to explain the present invention, but not to limit the scope of the present invention.

As shown in Figures 1-3, the lake automatic monitoring equipment of the present invention includes a floating ball 1, an underwater device 3 and a mooring cable 2 connected between the floating ball 1 and the underwater device 3; the inside of the floating ball 1 is provided with The communication equipment 4 and the control center 8, the upper hemisphere of the floating ball 1 is provided with a solar cell panel 9; The plate 9 is used to absorb solar energy and the energy generated is used to maintain the operation of the buoy-type automatic monitoring equipment for rivers and lakes in uninhabited areas; the antenna of the communication device 4 is arranged on the top of the floating ball 1; the bottom of the floating ball 1 The flow rate sensor 5, the water temperature sensor 6 and the water quality sensing device 7.

The bottom of the buoy 1 is provided with a water surface pressure sensor 21; the bottom device 3 is embedded in the bottom, and the top of the bottom device 3 is provided with a bottom pressure sensor 22, and the multifunctional mooring cable 2 has a built-in transmission cable, and the bottom The pressure sensor 22 is electrically connected with the control unit; the specific gravity of the mooring cable 2 is equivalent to the density of the measured lake water; the control center 8 obtains the data of the water surface pressure sensor 21 and the water bottom pressure sensor 22, calculates the pressure difference between the water surface and the bottom of the water, and then measures Get the relative water level of the lake. Both the surface pressure sensor 21 and the bottom pressure sensor 22 are vibrating wire pressure sensors, and the vibrating wire pressure sensors are electrically connected to the control center 8 . The water quality monitoring sensing device 7 includes water quality sensors for detecting dissolved oxygen, Ph value, density, salinity and turbidity indicators, and the water quality sensors are all electrically connected to the control center 8 .

The underwater device 3 can be a ship's anchor or a metal weight, which is used to sink the mooring cable 2 and the underwater pressure sensor 22 to any position on the bottom of the water, and keep the position still. Apply a long-lasting antifouling paint to prevent marine life from attaching.

How to measure the relative water level changes of rivers and lakes in uninhabited areas is one of the difficulties in this technical field. Conventional methods require human intervention, which brings difficulty to its implementation. The present invention solves this problem by adopting an ingenious method.

The present invention uses a helicopter or a ship to put the monitoring system into the lake, the underwater device 3 will sink to any position on the bottom of the water, the floating ball 1 will float on the water surface 11, and the underwater device 3 will remain still after being embedded in the fixed position of the bottom 12. The sensor 22 is fixed on the top of the anchor, which is equivalent to providing a pressure measurement reference. Since the multifunctional mooring cable 2 is longer than the depth of the deepest lake, the floating ball 1 then emerges from the water surface, and the water surface pressure sensor 21 is set At the bottom of the floating ball, which is a fixed position at a position of 0.5m-2m underwater, it rises or falls with the fluctuation of the water in rivers and lakes.

The present invention adopts the water surface pressure sensor 21 and the water bottom pressure sensor 22 to measure the pressure difference at the same time, and then calculates the height difference between the water surface pressure sensor 21 and the water bottom pressure sensor 22 according to the density of the lake water measured by the water quality sensor, that is, the water level difference is the water level relative changes. The advantage of this dual pressure sensor is that it overcomes or reduces the influence of atmospheric pressure, ambient temperature, etc. on the water depth measurement results through the method of difference. Because the pressure sensor with the same specification and good consistency is used, the measurement of water level is ensured. precision. In addition, the multi-functional mooring cable 2 has a counterweight design, and the internal plastic filler is added to match the metal cable for transmission to ensure that its specific gravity is equivalent to that of the lake water, and will not pull the floating ball 1 into the water, nor will the underwater device 3 Taking away the deviation from the fixed lake bed position ensures the measurement accuracy.

When working, the buoy-type automatic monitoring equipment for rivers and lakes in uninhabited areas is fixed on the lake bed, and the energy generated by the solar panel 9 on the surface of the floating ball 1 supplies the normal operation of the entire system. The underwater device 3 is embedded in the bottom of the water, and the underwater pressure sensor transmits the collected information to the control center 8 in the bottom of the floating ball through the electric unit of the multifunctional mooring cable 2, and the water surface pressure sensor 21 at the bottom of the floating ball 1 transmits data through the electric unit To the control center 8 in the bottom of the float, the control center 8 calculates the pressure difference measured by the water surface pressure sensor and the bottom pressure sensor through corresponding data calculations, and then obtains the dynamic water depth situation; the data of the water depth is sent to the data information through the communication device 4 It is transmitted to the data center, and when the water level exceeds the preset water level, the data center will give an alarm.

The water quality sensor will detect dissolved oxygen, Ph value, density, salinity and turbidity, and transmit the detected data to the control center 8, and the control center 8 transmits the processed information to the data center through the communication device 4, If the water quality is up to standard, the data center will display normal; if the water quality is not up to standard, the data center will give an alarm.

The water temperature sensor will measure the water body temperature of the lake, and transmit the detected data to the control center 8, and the control center 8 will transmit the data information to the data center through the communication device 4.

The tethered cable is composed of a protective sheath, a built-in multi-core transmission cable, and plastic fillers. The plastic filler has good electrical properties, low density, low price, and is easy to form and is widely used in cable filling; in the actual production process , It should be ensured that the specific gravity of the mooring cable is roughly equivalent to the density of the measured lake water, and the mooring cable does not float or sink during the measurement, so as to avoid the influence on the measurement results.

Claims (10)

1. A buoy-type automatic monitoring system for rivers and lakes in uninhabited areas, characterized in that: comprise a floating ball (1), an underwater device (3) and be connected to a mooring between the floating ball (1) and the underwater device (3) The cable (2); the underwater device (3) is embedded in the bottom of the water, the inside of the buoy (1) is provided with a control center (8) and communication equipment (4), and the outside of the buoy (1) is provided with a solar cell plate (9); the automatic monitoring system is provided with a sensor unit to realize the measurement of water level, flow velocity, water quality, and water temperature parameters; the control center (8) is electrically connected with the sensor unit and the solar panel (9), and the sensor unit monitors The data is transmitted to an external data center through the communication device (4). 2. The buoy-type automatic monitoring system for rivers and lakes in uninhabited areas according to claim 1, characterized in that: the bottom of the floating ball (1) is provided with a water surface pressure sensor (21), and the top of the underwater device (3) A bottom pressure sensor (22) is provided, and the mooring cable (2) has a built-in transmission cable to electrically connect the bottom pressure sensor (22) with the control unit; the specific gravity of the mooring cable (2) is related to the measurement area water The density is equivalent, the automatic monitoring system obtains the data of the water surface pressure sensor (21) and the water bottom pressure sensor (22), calculates the pressure difference between the water surface and the water bottom, and then measures the relative water level parameters of the river and lake. 3. The buoy-type automatic monitoring system for rivers and lakes in uninhabited areas according to claim 1 or 2, characterized in that: the water surface pressure sensor (21) is set at 0.3-2m below the water surface. 4. The buoy type automatic monitoring system for rivers and lakes in no man's land according to claim 1 or 2, characterized in that: the automatic monitoring system also includes a flow rate sensor (5) and a water temperature sensor (6) arranged at the bottom of the floating ball (1) ) and water quality sensing device (7). 5. The buoy-type automatic monitoring system for rivers and lakes in uninhabited land according to claim 4, characterized in that: said water quality sensing device (8) includes dissolved oxygen, Ph value, salinity, density and turbidity indicators Water quality sensors, the water quality sensors are all electrically connected to the control center (8). 6. The buoy-type automatic monitoring system for rivers and lakes in uninhabited areas according to claim 1 or 2, characterized in that: the solar panels (9) are arranged on the outer circle of the upper hemisphere of the floating ball (1) along 360° . 7. The buoy-type automatic monitoring system for rivers and lakes in uninhabited areas according to claim 1 or 2, characterized in that: the antenna of the communication device (4) is set on the top of the floating ball (1). 8. The buoy-type automatic monitoring system for rivers and lakes in uninhabited land according to claim 1 or 2, characterized in that: said surface pressure sensor (21) and underwater pressure sensor (22) are all pressure sensors, and said The pressure sensor is electrically connected with the control center (8). 9. The buoy-type automatic monitoring system for rivers and lakes in uninhabited areas according to claim 1 or 2, characterized in that: the specific gravity of the mooring cable (2) is equivalent to the density of the measured lake water, and the length of the mooring cable (2) is greater than The deepest depth of the lake. 10. The buoy-type automatic monitoring system for rivers and lakes in uninhabited areas according to claim 1 or 2, characterized in that: the underwater device (3) is a ship anchor or a metal weight.