Progres AgroBee-L Manuale utente

AgroBee-L Parshall System

AgroBee-L Manual

Very low consumption radio modules and integrated parts of the

AgroBee-L system for open canal flows based on Parshall gauges

through an ultrasonic sensor that forms part of the controller.

The AgroBee-L Parshall model oers the following, according to the available format:

• 1 ultrasonic sensor:

‒ 1 sensor with TTL output for measurements up to 9 metres with 1mm precision

N P K

AgroBee-L

Parshall

Ultrasonic sensor

The Parshall canal is a standardized Venturi canal. Parshall gauges are calibrated instruments

for measuring flows in open canals. It is technically described as a critical depth gauge. Its main

advantages are that there is only a small pressure drop through the gauge, which allows for the

easy passage of sediment or debris, without needing special access conditions or a buer well or

even corrections for up to 60% submergence. Consequently, it is suitable for measuring the flow

in irrigation canals or natural currents with a gentle slope.

The meter consists of a section convergent with the bottom level, a funnel section with a des-

cending slope on the bottom, and a divergent section with an ascending slope at the bottom.

Thanks to this, the water drains at a critical speed through the funnel.

2· User’s manual | AgroBee-L

b[“] b[m] C n F[m]

sensor position

1 0.0254 0.001352 1.548 0.242

2 0.0508 0.002702 1.548 0.276

3 0.0762 0.003965 1.548 0.311

6 0.1524 0.006937 1.574 0.414

9 0.2286 0.013762 1.528 0.587

12 0.3048 0.69 1.519 0.914

18 0.4572 1.06 1.538 0.965

24 0.6096 1.43 1.550 1.016

30 0.7620 1.81 1.558 1.067

36 0.9144 2.18 1.566 1.118

48 1.2192 2.95 1.578 1.219

60 1.5240 3.73 1.587 1.321

72 1.8288 4.52 1.595 1.422

84 2.1336 5.31 1.601 1.524

96 2.4384 6.11 1.607 1.626

120 3.0480 7.46 1.600 1.829

144 3.6576 8.86 1.600 2.032

180 4.5720 10.96 1.600 2.337

240 6.0960 14.45 1.600 2.845

300 7.6200 17.94 1.600 3.353

360 9.1440 21.44 1.600 3.861

480 12.1920 28.43 1.600 4.877

600 15.2400 35.41 1.600 5.893

The meter’s control section is located near the end of the converging section. The Parshall

gauges are calibrated for a piezometric height ha, measured at a defined place in the converging

section.

Parshall gauges are constructed in very dierent sizes and classified according to the width,

b, in the funnel section. For each of them, a pair of constants is defined which, along with the

measured water height, allow you to determine the flow of water through the gauge:

The AgroBee-L Parshall model’s ultrasonic sensor directly measures the distance between

the sensor and the surface of the water. The measurement of water flow through the canal in

question is obtained through this process and from the configuration parameters entered into

the associated controller.

The sensor must be installed at 2/3 of the total convergence section, as indicated in the

following figure (distance F shown in the previous table):

User’s manual | AgroBee-L · 3

Q = C x han

This module is powered by a 1.05 W solar panel + supercapacitors, already incorporated into

the controller (no need to replace batteries).

For the sensor, the following parameters must be entered in the controller, which will let you

determine the water flow of the canal in question:

• Width [”]: dimensions of the Parshall canal, in inches, and according to the previous table.

• Total height [m]: distance from the sensor at level 0.

Example: with the sensor located at the top of a canal to measure its water level, the total

height will be the distance from the sensor to the bottom of the canal.

The water flow can be calculated from this information along with the measurement from the

sensor.

• Format: presentation format of the measured flow data: in m3/h, m3/s, l/s, or gpm. For each

of these formats, you can also choose the given resolution. You can choose one resolution or

another depending on the units chosen and the maximum value of the flow to be measured

in the system in question. It is important to keep the maximum possible value for the

formats in mind, which is also indicated below:

‒ 00000 (max. 32767)

‒ 0000.0 (max. 3267.7)

‒ 000.00 (max. 327.67)

These sensors’ reading rates can be selected from 3 dierent values: 5, 10, or 20 minutes, with

the default value being 5 minutes.

Material supplied along with the purchase of the AgroBee-L Parshall: Sensor, 7 metres of wiring,

and support for the sensor.

MEASURE

POINT

4· User’s manual | AgroBee-L

Technical characteristics

Power supply: Parshall: Solar: 5V /

1,05W → 3,3V Panel plus high capacity

supercapacitors

Energy consumption:

Parshall Average consumption:

0,90 mW

Power supply

Number 1

Type 5 Vcc (Sensor power supply)

Maximum current: 50 mA

Outputs

Temperature -10 °C a +60 °C

Moisture < 95 %

Altitude 2000 m

Pollution Grade II

Environment

Height 150 mm

Width 100 mm

Depth 70 mm

Weight (approx.) 0,4 Kg

Box dimensions Parshall

Maximum distance betweeen sensor and

AgroBee-L: 50m

Number 1

Type For potential-free contacts

Number 1

Type Digital (TTL)

Inputs

This symbol indicates that electrical and electronic controller must not be disposed of along

with household waste at the end of its useful life. The product must be taken to the correspon-

ding collection point for the recycling and proper treatment of electrical and electronic contro-

ller in accordance with national legislation.

This system conforms with the regulations and other

regulatory documents in the following list:

Electrical

safety

UNE EN 60950-1:2007+ CORR:2007 Information technology controller.

Safety. Part I: General requirements

UNE EN 60215:1995 + A2:1995 Safety requirements for

radiotransmission controller

EMC

ETSI EN 301 489-17 v1.3.2 based on ETSI EN 301 489-1 v.1.7.1:

UNE-EN 55016-2-3:2007 Radiated radio frequency

emissions (30-1000MHz). Class B

UNE-EN 61000-4-2:1997

+ A1:1999 + A2:2001 Electrostatic discharge

UNE-EN 61000-4-3:2007 + A1:2008 Electromagnetic field immunity

UNE-EN 61000-4-4:2005 Transient/burst immunity

UNE-EN 61000-4-6:2008 Current injection: 150KHz-80MHz

Radio

spectrum

protection

ETSI EN 300 328 v1.7.1

(Decision ERC/DEC/(01)07

and Recommendation

CEPT ERC/REC 70-03)

Spurious issuer emissions Coordinator

and Module Parshall. Eective

radiated power Coordinator and

Module Parshall. Frequency dri

Coordinator and Module Parshall.

Declaration of conformity

User’s manual | AgroBee-L · 5

Inputs

The AgroBee-L radio modules are used for the activation of valves and other irrigation elements,

as well as the reading of sensors and meters. It is very low consumption and follows the LoRa

radio modulation, which operates in the 868MHz, 433 MHz and 915 MHz, free bands, obtaining

radio coverage of up to 2500 m between two points (depending on the orography).

AgroBee-L System Operation

Currently, they can be incorporated into the Agrónic

2500, Agrónic 5500 and Agrónic Bit Con fertirrigation con-

trollers.

The AgroBee-L system consists of a coordinator device

(located in the Agrónic 2500, Agrónic 5500 or Agrónic

Bit Con controllers) and by field elements with dierent

functions, depending on the model in question. This

system does not include the use of repeater elements,

so all modules must connect directly with their coor-

dinator. The field modules manage their consumption

by activating the communication in the precise time of

the exchange; the rest of the time, they are asleep or

attending to irrigation control.

Its low consumption allows it to operate with a solar panel integrated into the module and

supercapacitors or battery (depending on the model). The solar panel stores the energy in the

supercapacitors/battery, oering a long operational life. It is only necessary to replace batteries

in models that include batteries instead of supercapacitors.

The maximum number of modules that an Agrónic controller can manage is 20 units in standard

mode, which can be configured as modules of any of the available types. There is also a priority

mode, which makes it possible for the modules to communicate more oen: in this case, the

number of modules (10) is halved.

To use AgroBee-L modules, it is necessary to assign their outputs to the sectors or generals of

the controller in question, and their inputs to the digital, analog, or counters sensors.

The AgroBee-L system has the following features, among others:

• Operation in 868 MHz, 433 MHz and 915 MHz free bands.

• Availability of 13 communication channels plus 18 transmission modes, which allow for the

operation of more than one network in the same area working on the same channel.

• Availability of network code, which allows for filtering the information of several networks

configured with the same parameters.

• Self-adjustable communication rate according to the chosen transmission mode and the

timing mode:

‒ Timing in standard mode (60 –200”). Up to 20 modules.

‒ Timing in priority mode (30 –100”). Up to 10 modules.

6· User’s manual | AgroBee-L

Installation

For the supply of radio controller, it is essential to have a

coverage study. This study verifies the viability of the system

according to the profile of the terrain, the location of the points

to be controlled, and the distance between them. The study is

delivered along with the controller oer.

AgroBee 868 MHz

ESTUDIO DE COBERTURA RADIO

SISTEMES ELECTRÒNICS PROGRÉS, S.A.

El resultado del estudio es

VIABLE

Referencia FINCA RIO GRANDE

Número de estudio

2017 - 001

Instalador AGUAS DEL NORTE

Fecha de creación

05/12/2017

Distribución

instalación

Indicaciones para su correcta instalación

Coordinador altura mínima 6m - cable subministrado 10 m

Otros módulos altura mínima 4.5m - cable subministrado 10 m

Módulo Repetidor altura mínima 6m - sin cable

Garantizar visión directa entre antenas

Comunicación indirecta del coordinador a los módulos, comunicación mediante repetidor

Coordenadas Módulos RPT-EXTERNO 38°50’42.57”N - 6°19’4.14”O

Altura

Visibilidad

Distribución directa entre antenas

The AgroBee-L modules have the antenna integrated into the

module, so they are installed on top of a post.

For good radio communication, it is very important to place the

modules in areas free of vegetation, walls, and metal structures.

The minimum recommended height to place the module is 4.5

metres from the ground. If there are tall crops (corn, trees, ...) this

minimum height of the module must be increased by 2 metres

above the height of the crop. In all cases, it must always have

direct visibility with the controller’s antenna that sends the in-

formation (coordinator located in Agrónic). The 7 metres of cable

supplied already include these assembly recommendations.

To increase the coverage, and if necessary, the best system is

made by raising the module as high as the length of the cable allows.

The modules with solar panels must be placed orienting the panel to the South (Northern he-

misphere) or North (Southern hemisphere) to obtain the best solar coverage.

min. 4,5 m

Post

Module

INSTALLATION MÓDULOS

• Distances of up to 2500 metres between any module and its coordinator (depending on the

orography).

• Manual actions, consultations, and configuration of the network number, channel,

transmission mode, and communication timing (standard/priority):

‒ In-situ: Through the Module Reader

‒ From a distance: Through the Agrónic

• Battery/charge level reading and solar panel (if any).

• Reading SNR level (signal-to-noise ratio) reception in the module and coordinator (in [%]).

• Reading the status of the last 16 communications and remaining time indicator until the

next communication.

User’s manual | AgroBee-L · 7

min. 2 m

Flange Folding posts

To keep it watertight, it is necessary to always

leave the lid closed.

The modules can be fixed on a 35 to 45mm post by

means of the support and flange, incorporated in

such a way that the cable output passes through the

inside of the post.

It is recommended to install it on folding or exten-

dible posts for easy access to the module.

Ultrasound sensors should always be installed at a

distance greater than 50 cm from the nearest surface

to be measured. In the case of the Parshall canal,

the sensor must be placed at least 50 cm above the

maximum level at which it can be.

IMPORTANT

The sensor must be well-fixed in its location by

means of the mount provided. It is important that it

be well-secured and not move at all, since this would

alter the result of the measurements.

There must be no object between the sensor and

the surface to be measured.

INSTALLATION SENSORS DE ULTRASONIDOS

Do not place the sensor next to a wall

or any other surface that is parallel to

the sensor’s central axis. The minimum

distance that a sensor must be with

respect to any surface parallel to its axis is

defined by the supplied mount.

Minimum radius

Maximum

level

Minimum

distance

Level

sensor

min. 50 cm

min. 50 cm min. 50 cm

Minimum

radius

min. 50 cm

8· User’s manual | AgroBee-L

Inputs and Outputs

Parshall

Wire colour Function (digital input)

Brown Common Digital Input

Blue Digital Input 1

There is 1 digital input in an

AgroBee-L Parshall module, which

can function either as a digital input

or a counter/rain gauge input.

When the input is connected to

DIGITAL INPUTS DIGITAL SENSOR

a counter, the minimum time between pulses must be 0.1 seconds and an anti-bounce filter

may be enabled in order to avoid accumulating undesired pulses. Maximum allowed distance

between AgroBee-L module and a digital sensor or meter is 50m.

The said input’s connection must be set according to the following table. The digital input’s

wire connection is coloured Blue. The common input is the Brown wire.

Settings

For any AgroBee-L module to enter the correct operating mode, you must have an Agrónic

controller (Agrónic 2500, Agrónic 5500 and Agrónic Bit Con) with the AgroBee-L option installed,

which includes the internal coordinator and an antenna with 10 metres of cable. This can be

verified by doing the following in the controller:

Consulta Comunicación AgroBee-L Status: Correct

In the same way, a module must be configured to communicate with the Agrónic with which

you want to associate it. To do this (if the module is not already configured at the factory) you

must use the Module Reader (or Agronic Radio Reader, LAR) consisting of a screen and four keys,

that is connected to the AgroBee-L module through the only connector visible on the inside.

A wireless module reader is also available that allows you to perform functions without the

need for a cable. Consult the wireless AgroBee Reader manual to learn about the steps to link it

to the controller.

The sensor is supplied with a 7 metre hose that is already connected to the AgroBee-L Parshall,

so it is not necessary to make any additional connection. A mount is also provided to facilitate

the sensor’s installation.

CONNECTED SENSOR

This model has 1 input for reading an ultrasonic sensor. The module is supplied with 1 sensor:

• 1 sensor with TTL output for measurements up to 9 metres with 1mm precision

For this module, no action must be taken to connect the inputs, since the Parshall model is

already supplied with 1 connected sensor.

DIGITALTTL INPUTS ULTRASOUND SENSORS

User’s manual | AgroBee-L · 9

Once the AgroBee-L module is linked with an Agrónic, all the consultations and

parameters are accessible through the Agrónic.

NOTE

Press the key to enter the main menu. Use the and

keys to change the options within the menu. Use the key to

enter the selected menu option. Use the key to return to the

previous hierarchy’s menu.

You will see the following options in the main menu:

• Consult controller

• Consult communications

• Consult digital and analog inputs

• Communication parameters

• Input-Output parameters

• Various parameters

General query menu of the module, where the following parameters are displayed:

• Module and serial number:

‒ Module: It refers to the module number (1 to 20) according to the established

communication parameters. There can only be one same module number for each

Agrónic.

‒ Serial number: Information regarding the controller. It comes from the factory.

• Battery voltage and solar panel:

‒ Vbat: Battery voltage:

∙ Panel+Supercapacitors: Maximum value: 3.4V; Minimum value: 2.2V

∙ Panel+Battery: Maximum value: 4.2V; Minimum value 3.4V

‒ Vsol: Voltage of the solar panel

These same data can be viewed in the Agrónic by accessing “Consult - Communications -

AgroBee,” as you will see in the next section.

CONTROLLER QUERY OF AN AGROBEEL MODULE

Communication consultation menu of the module, where the following parameters are

displayed:

• Transceiver: Type of emitter installed in the module. It tells you if the module works at

868MHz/433MHz or 915MHz

CONSULT COMMUNICATIONS IN AN AGROBEEL MODULE

10 · User’s manual | AgroBee-L

‒ RN2483 (868MHz/433MHz)

‒ RN2903 (915MHz)

• Band and transmission mode:

‒ Band: 868MHz, 433MHz, 915MHz

‒ Transmission Mode: 1 to 18 (mode 5 will be set by default)

• Consult parameters of the communication type:

‒ Channel: 1 to 13

‒ Network code: It is usually the associated Agrónic serial number

‒ BW: Bandwidth of the radio modulation (125KHz, 250KHz, 500KHz). It is set according to

the transmission mode chosen in the communication parameters.

‒ Radio modulation factor: SF7, SF8,…, SF12. It is set according to the transmission mode

chosen in the communication parameters.

‒ Communication status:

∙ Status message:

- Correct Communication

- Network error

- Communication error

- Model error

- Does not communicate

∙ Signal-Noise ratio of the last received message: Reliable communication if >40%.

‒ Time until next radio emission: time in [s]

‒ Status of the last 16 communications (the previous communications appear on the right

side of the screen):

∙ 1: It indicates that the emission has been made and the correct information received in

the last communication

∙ 0: Indicates that the radio emission has been made, but the correct data has not been

received or no data has been received

Part of this information is available through the Agrónic by accessing “Consultation | Commu-

nications | AgroBee”, where you can also see the query regarding the controller and the parame-

ters of the communication.

CONSULT COMMUNICATIONS

AgroBee-L 868

Status: Correct

Timing: 60”

Channel: 01 TX Mode: 05

Network code: 00001

CONSULT COMMUNICATIONS

M01 (ns. 236) V1.00

Status: Correct (40”)

Level: 80% / 82%

Vbat: 04.0 V Vsol: 05.8 V

1111111111111111

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