RU2154848C1 - Automatic station of identification of pollution of water objects - Google Patents

Abstract

FIELD: systems of ecological monitoring of environment, measurement of indicators of quality of aqueous media. SUBSTANCE: station includes submersible module fitted with anchor housing sensors monitoring hydrological and physicochemical parameters of quality of water in water object, connecting cable, external communication device, power supply source, controller choosing depth of module submersion and unit controlling submersion depth. Power supply source, external communication device and controller choosing depth of module submersion are positioned in shore module protected against unauthorized access and unfavorable climatic effects. EFFECT: automatic search for optimum depth of submersion of module, reduced mass of module and provision for round-the-year and all-weather monitoring of quality of water. 1 dwg

Description

 The invention relates to automatic measuring instruments, and in particular to measuring instruments for the quality indicators of aquatic environments, and can be used as part of environmental monitoring systems for natural environments.

 Known hydrological probe "Chance" submersible type [1], containing sensors of physico-chemical and hydrological quantities, a controller for polling measuring channels, a secondary transducer, a connecting cable and a workplace of the operator. The power of the measuring instruments included in the probe, lowered from the side of the vehicle, is carried out from the onboard network.

 Known hydrological probes of immersion type [2], containing sensors of hydrological quantities and devices for storing information. Such probes are not able to record changes in physico-chemical parameters, as well as to change the location in the aquatic environment during their operation.

 Closest to the proposed invention is an autonomous positional station for monitoring the aquatic environment [3]. The device consists of a submersible module, which contains sensors for monitoring the hydrological and physicochemical parameters of water quality of water objects, a power source, a switch for interrogating measurement channels, a connecting cable and a floating buoy containing a radio station and a docking device for mobile surface-based vehicles docking with an onboard PC. In this case, the submersible module is equipped with an anchor or an anchor system. The disadvantages of this device are the fixed immersion depth of the module, the large mass of the module, due to the placement of a power source in it, which in turn leads to the need to use special tools for repair and routine maintenance of the device. In addition, in the presence of ice cover on a water body, the use of such a device is impossible.

 The present invention solves the problem of automatically searching for the optimal immersion depth of the module, reducing its weight, as well as providing the possibility of year-round and all-weather water quality control.

 To achieve this technical result, an automatic water pollution indication station containing an immersion module equipped with an anchor with sensors for monitoring the hydrological and physico-chemical parameters of water quality of water objects, a connecting cable, an external communication device and a power source is additionally equipped with a controller for selecting the depth immersion module and a device for regulating the depth of immersion, while the power source, external communication device and controller for selecting hl Bina immersion module located in the coastal module configured to protect against unauthorized access and exposure to adverse climatic conditions.

 The drawing shows a block diagram of the proposed automatic post indicating the pollution of water bodies, where it is indicated: 1 - sensors for monitoring the physico-chemical parameters of water; 2 - submersible module; 3 - connecting cable; 4 - coastal module; 5 - controller; 6 - device for controlling the depth of immersion; 7 - anchor; 8 - external communication device; 9 - power source.

 Automatic post indication of pollution of water bodies operates as follows. Sensors 1 for monitoring the physicochemical parameters of the aquatic environment record the values of the measured parameters and transmit them via the connecting cable 3 to the coastal module 4, which houses the controller 5, the external communication device 8 and the power source 9. The controller 5 compares the values of the measured parameters received from the sensors 1 water environment with the control, recorded in his memory, generates a signal for changing the immersion depth of module 2 and transmits it to the device 6 for regulating the depth of immersion associated with the armature 7. The choice of depth ogruzheniya module made according to the criterion of the maximum of the measured parameter deviation from the control value, entered in the memory of the controller, in the following order: the controller determines the sign of the difference between two successive measurements of the parameter at different depths. Based on the sign of the difference, the controller generates a command to move the outdoor module by a distance Δh in the direction of the expected growth of the measured parameter value. Depth change in the selected direction occurs before the sign of the difference changes or its absolute value vanishes. Based on these events, the controller moves the immersion module in the opposite direction by Δh / 2.

 The values of the parameters of the water medium, measured by the sensors 1, are transmitted through the controller 5 to the external communication device 8, which in turn transmits them to the data collection center as observation results. The power of all devices included in the automatic post indicating the pollution of the aquatic environment is provided from a power source 9.

 The constructive implementation of the controller can be performed on the basis of existing serial devices, for example, the Satellite controller manufactured by REALTIME Enterprise CJSC [4] or single-board controllers [5]. To perform the function of choosing the depth of immersion requires an efficiency of not more than 500 elementary operations per second and the amount of RAM not more than 2 Kbytes, which corresponds to the technical capabilities [4, 5].

 Using the proposed automatic station for indicating pollution of water bodies provides round-the-clock all-weather communication with consumers of information on the status of water bodies.

 LITERATURE.

 1. The brochure of the company "ELSIKO". St. Petersburg. 1997.

 2. Autonomous digital meter of currents and temperature ACITT. Handbook of hydrometeorological instruments and installations. Hydrometeoizdat. L., 1976.

 3. Autonomous position monitoring station for the aquatic environment. The brochure of the Central Research Institute "Hydropribor". St. Petersburg. (Prototype).

 4. Controller "Satellite". Advertising brochure ZAO "REALTIME Enterprise", 1998.

 5. Advanced automation technology. Brief product catalog. 1999, pp. 102-105.

Claims (1)

 Automatic station for indicating pollution of water bodies, containing an immersion module equipped with an anchor with sensors for monitoring the hydrological and physico-chemical parameters of water quality of water bodies located therein, a connecting cable, an external communication device and a power source, characterized in that a controller for selecting the immersion depth of the module, and the immersion module is equipped with a device for regulating the immersion depth, while the power source, external communication device and controller for selecting a module insertion depth has a shore module, adapted to protect from unauthorized access or exposure to adverse climatic conditions.