CN210051406U - Micro-power consumption integrated ultrasonic water level meter - Google Patents

Abstract

The utility model discloses a micro-power integrated ultrasonic water level meter, which comprises an ABS waterproof casing, a data acquisition unit, a data transmission unit, a rechargeable lithium battery pack and an ultrasonic transducer; the data acquisition and transmission unit is fixed in the lower end shell of the ABS, the rechargeable lithium battery pack is packaged in the upper end shell, the ultrasonic transducer and the antenna are all arranged on the surface of the lower end shell, and waterproof treatment is carried out; the data acquisition unit and the data sending unit comprise an ultrasonic transducer acquisition circuit board, a telemetering terminal circuit board and a 4G communication module circuit board; the rechargeable lithium battery pack comprises 18650 rechargeable lithium batteries and a charge and discharge management circuit board. The utility model provides a high integration, have dampproofing, anticorrosive, rust-resistant characteristic, small, low power dissipation, installation easy and simple to handle, maintain simply, but wide application in irrigated area water level, the online automatic monitoring of flow, city flood control on-line monitoring, city flood control are emergent, patrol and survey system.

Description

Micro power consumption integrated ultrasonic water level meter

technical field

The utility model belongs to the technical field of monitoring instruments, in particular to an integrated ultrasonic water level gauge with micro power consumption.

Background technique

At present, the water-saving renovation of large and medium-sized irrigation areas implemented by the state focuses on the lining and matching of main and branch canals, and the construction of small-scale farmland water conservancy projects focuses on the lining of Dounong Canal or changing it to pipelines. Unobstructed, flexible gate valve control, accurate irrigation measurement, beautiful civil engineering, high degree of automation of monitoring and control equipment, and corresponding management institutions and management measures. One of the core contents of accurate irrigation measurement is the accuracy and automation of real-time monitoring of water level and flow in open channels. Therefore, online monitoring of water level and flow in open channels is the basic condition for promoting metered irrigation to save water in irrigation areas and improve crop water productivity.

There are many measurement methods for the current open channel cross-section flow, but with the improvement of the degree of automation and the improvement of the accuracy of water measurement, there are more or less some deficiencies, as follows:

1) Most of the flow rate-area method used in my country requires manual operation. Although the measurement accuracy is high, it cannot meet the requirements of automation and cannot be monitored online in real time; 2) The weir and groove method is more accurate and easier to automate. measurement, but the accuracy of this method is easily affected by the changes of scour and siltation in open channels; it is not suitable for open channels in muddy water; 3) the water level-flow relationship method, although it can automatically measure the flow, but the accuracy is not high, can not meet the accuracy of water 4) Relying on imported instruments to automatically measure flow, the instruments are expensive and expensive to maintain, and cannot meet the requirements of automatic measurement of open channel flow;

In addition, most of the current domestic open channel online monitoring is composed of sensors, water level gauges or flow meters, acquisition systems, communication systems and other parts. Each part is relatively independent, the installation and construction supporting projects are expensive, and the power consumption is large. If you need online real-time long-term Monitoring needs to be equipped with a solar floating charging source or AC charging, which is expensive to construct and inconvenient to manage and maintain, and cannot meet the requirements for the wide-ranging measurement of open canals in the irrigation area. There are relatively few online monitoring devices that are highly integrated, with sensors, acquisition systems, communication systems and other parts integrated, which are easy to install and carry, and have their own power supply capacity that can meet the requirements of the irrigation area's one-year water release period.

Utility model content

In order to solve the deficiencies of the prior art, the utility model provides a highly integrated micro-power consumption integrated ultrasonic water level gauge.

In order to achieve the above purpose, the technical scheme of the present utility model is: a micro-power integrated ultrasonic water level gauge, comprising an ABS waterproof casing, a data acquisition unit, a data transmission unit, a rechargeable lithium battery pack, an ultrasonic transducer and an antenna The data acquisition unit and the data transmission unit include a telemetry terminal circuit board and a 4G communication module circuit board; the rechargeable lithium battery pack includes a rechargeable lithium battery and a battery charge and discharge protection board; the ultrasonic transducer includes an ultrasonic transducer energy acquisition circuit board and ultrasonic transducer probe; the telemetry terminal circuit board, 4G communication module circuit board, battery charge and discharge protection board, ultrasonic transducer acquisition circuit board and rechargeable lithium battery are installed in the ABS Inside the waterproof casing; the ultrasonic transducer probe and the antenna are installed at the outer bottom of the ABS casing.

As an improvement of the present invention, the ABS waterproof casing includes an upper waterproof casing and a lower casing, the upper waterproof casing and the lower casing are connected by screws, and the lower casing is placed at the screw teeth Two fluororubber sealing rings make the ABS case reach IP68 waterproof level.

As an improvement of the present utility model, the rechargeable lithium battery and the battery charging and discharging protection board are arranged in the upper waterproof casing, the telemetry terminal circuit board, the 4G communication module circuit board, the ultrasonic transducer The collection circuit board is arranged in the lower housing.

As an improvement of the utility model, the rechargeable lithium battery pack and the battery charging and discharging protection board are insulated. The rechargeable lithium battery is composed of 10 18650 lithium batteries, 5 cells are connected in parallel to form a group, and then two groups are formed. composition in series.

As an improvement of the present utility model, the circuit board of the telemetry terminal and the circuit board of the 4G communication module are four-layer circuit boards, and the two-tier circuit boards are connected by double rows of pins.

As an improvement of the utility model, the hardware interface of the telemetry terminal circuit board includes: 1 PI input interface, 1 controllable power output interface, 1 RS485 interface, 1 USB interface, 1 wireless Bluetooth interface, Charge voltage detection input interface.

As an improvement of the utility model, the main chip of the telemetry terminal circuit board is the STM32L4 series chip in the ARM chip, and the main chip of the 4G communication module is the ZTE ME3630 MINIPCIE chip.

As an improvement of the present utility model, the casing body is cylindrical, and the outer dimension diameter×length is 89mm×137.7mm

Beneficial effects:

The utility model provides a highly integrated device that integrates sensor collection and monitoring, and a power supply, and has a solar charging or alternating current charging interface, an intelligently switched USB interface, a Bluetooth interface, and a micro-power consumption that supports remote parameter setting and program upgrade. The integrated ultrasonic water level meter has the advantages of large solid-state storage capacity, low power consumption design, easy installation and portability, moisture-proof, anti-corrosion, and rust-proof, suitable for online automatic monitoring of water level and flow in irrigation areas, and can also be used for online monitoring of urban flood control or urban Flood control emergency, patrol system water level monitor.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural sectional view-A of the utility model;

Fig. 3 is the structural sectional view-B of the utility model;

Fig. 4 is the structural explosion schematic diagram of the present utility model;

FIG. 5 is a system circuit block diagram of the present invention.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, and cannot be used to limit the protection scope of the present utility model.

As shown in FIGS. 1 to 5 , the utility model discloses a micro-power integrated ultrasonic water level gauge including ABS upper and lower waterproof casings 1 and 2, the upper waterproof casing 1 and the lower casing 2 are connected by screws, and the lower casing Two fluororubber sealing rings 10 and 11 are placed on the thread of body 2, so that the ABS casing can reach IP68 waterproof level. A rechargeable lithium battery pack 5 and a charge and discharge management circuit board 6 are installed in the ABS upper waterproof casing 1 and fixed in the upper waterproof casing 1, and the ABS lower waterproof casing 2 is installed with a telemetry terminal circuit board 8 and a 4G communication module The circuit board 7 and the ultrasonic transducer collection circuit board 9 are fixed in the lower waterproof casing 2, and the bottom of the ABS lower waterproof casing 2 is fixed with the ultrasonic transducer probe 3, the antenna 4, and the waterproof plug 12. The outer dimension diameter × length of the ABS upper and lower waterproof casings 1 and 2 after screw connection is 89 mm × 137.7 mm.

The rechargeable lithium battery pack 5 is a package of 10 18650 lithium batteries, and the packaged lithium battery is composed of 10 18650 lithium batteries divided into 5 parallel groups, and then two groups are connected in series.

The telemetry terminal circuit board 8 and the 4G communication module circuit board 7 are four-layer circuit boards, and the double-row pin connection between the level circuit boards improves reliability and stability; and the diameter of the telemetry terminal circuit board 8 is 66.5mm, 4G The diameter of the communication module circuit board 7 is 68.5 mm.

The main chip of telemetry terminal circuit board 8 is STM32L4 series chip in ARM chip, and the main chip of communication module is ZTE ME3630 MINIPCIE chip; STM32L4 series chip supports 64MB memory, large data storage, can save water level and flow data for more than 5 years, and supports local , Remote download of historical data; the selection of such a main chip makes the power consumption of the monitoring device on duty less than 0.01mA (7.2VDC), and the instantaneous power consumption of sending is less than 180mA (7.2VDC).

The 8 hardware interfaces of the telemetry terminal circuit board include: 1 PI input interface, 1 controllable power output interface, 1 RS485 interface, 1 USB interface, 1 wireless Bluetooth interface, and charging voltage detection input interface; the USB interface can realize the main From the intelligent switching function, you can configure parameters from computer USB or download data from U disk, which is convenient and fast; Bluetooth interface can use mobile phone to wirelessly set parameters and query the current water level, flow, time and other working status; the interface design is based on national water conditions The standard design of the monitoring system, the design of the micro-power integrated ultrasonic water level gauge is mainly for a single water level sensor. Therefore, when meeting the requirements of a single water level and flow station, try to increase the interface as little as possible. On the one hand, the monitoring equipment is considered to be small. One reduces power consumption and lowers construction costs.

The micro-power integrated ultrasonic water level gauge hardware program has designed a variety of weir and groove method empirical formulas and a variety of flow monitoring methods, and users can choose according to the actual situation.

The upper and lower ABS waterproof casings 1 and 2 are cylindrical in shape. The upper and lower ABS waterproof casings 1 and 2 are connected with the lower casing by screws. Two fluororubber sealing rings are placed on the lower casings. 10 , 11, make the ABS case reach IP68 waterproof level.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the above-mentioned embodiments do not limit the present invention in any form, and all technical solutions obtained by means of equivalent replacement or equivalent transformation all fall within the protection scope of the present invention.

Claims (8)

1. The utility model provides a little consumption integral type ultrasonic wave fluviograph which characterized in that: the ABS waterproof system comprises an ABS waterproof casing, a data acquisition unit, a data transmission unit, a rechargeable lithium battery pack, an ultrasonic transducer and an antenna; the data acquisition unit and the data transmission unit comprise a telemetry terminal circuit board and a 4G communication module circuit board; the rechargeable lithium battery pack comprises a rechargeable lithium battery and a battery charging and discharging protection plate; the ultrasonic transducer comprises an ultrasonic transducer acquisition circuit board and an ultrasonic transducer probe; the telemetering terminal circuit board, the 4G communication module circuit board, the battery charging and discharging protection board, the ultrasonic transducer acquisition circuit board and the rechargeable lithium battery are arranged in the ABS waterproof case; the ultrasonic transducer probe and the antenna are installed at the bottom end outside the ABS shell.

2. The micro-power integrated ultrasonic water level gauge according to claim 1, wherein: the waterproof ABS casing comprises an upper end waterproof casing body and a lower end casing body, the upper end waterproof casing body is connected with the lower end casing body through threads, and two fluororubber sealing rings are placed at the threads of the lower end casing body, so that the waterproof ABS casing reaches the IP68 waterproof grade.

3. The micro-power integrated ultrasonic water level gauge according to claim 2, wherein: the upper end waterproof shell is provided with a rechargeable lithium battery, a battery charging and discharging protection plate, a telemetering terminal circuit board, a 4G communication module circuit board and an ultrasonic transducer acquisition circuit board, wherein the rechargeable lithium battery and the battery charging and discharging protection plate are arranged in the upper end waterproof shell, and the telemetering terminal circuit board, the 4G communication module circuit board and the ultrasonic transducer acquisition circuit board are arranged in.

4. The micro-power consumption integrated ultrasonic water level gauge according to claim 1 or 2, wherein: the rechargeable lithium battery pack and the battery charge and discharge protection plate are subjected to insulation treatment, the rechargeable lithium battery pack is composed of 10 18650 lithium batteries, 5 lithium batteries are connected in parallel to form a group, and then the two groups are connected in series to form the rechargeable lithium battery pack.

5. The micro-power integrated ultrasonic water level gauge according to claim 1, wherein: the telemetering terminal circuit board and the 4G communication module circuit board are four-layer circuit boards, and the level circuit boards are connected by adopting double-row pin headers.

6. The micro-power integrated ultrasonic water level gauge according to claim 1, wherein: the telemetry terminal circuit board hardware interface comprises: the device comprises a 1-path PI input interface, a 1-path controllable power output interface, a 1-path RS485 interface, a 1-path USB interface, a 1-path wireless Bluetooth interface and a charging voltage detection input interface.

7. The micro-power integrated ultrasonic water level gauge according to claim 1, wherein: the main chip of the telemetering terminal circuit board is an STM32L4 series chip in an ARM chip, and the main chip of the 4G communication module is a Zhongxing ME3630 MINICIE chip.

8. The micro-power integrated ultrasonic water level gauge according to claim 1, wherein: the casing body is cylindrical, and the outside dimension diameter is 89mm by 137.7mm by length.

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