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[[RU:eCargosens| Русская версия]]
[[RU:eCargosens| Русская версия]]
[[es:eCargosens| Versión en español]]
[[es:eCargoSens| Versión en español]]
[[File:Image2.png|thumb|'''<big>Current design: central unit, measurement unit</big>''']]
[[File:Image2.png|thumb|'''<big>Current design: central unit, measurement unit</big>''']]
The load monitoring system '''eCargosens''' (hereinafter - '''“System”''') for vehicles with air suspension is designed to monitor the load of every axis of the vehicle’s chassis based on the measurement of the air pressure in the air suspension’s system.
The load monitoring system '''eCargosens''' (hereinafter - '''“System”''') for vehicles with air suspension is designed to monitor the load of every axis of the vehicle’s chassis based on the measurement of the air pressure in the air suspension’s system.
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- '''RSSI''' as calculated by the central unit for every Sensor in particular;
- '''RSSI''' as calculated by the central unit for every Sensor in particular;
==== '''<big>Note for developers</big>''' ====
The central unit retransmits the parameters as per the LLS protocol in response to the request for level and temperature (because the LLS protocol was initially designed for the transmission of fuel level sensor)
31$XX$06$CRC-8 Maxim (XX stands for the network address from 00 to FF in HEX (0…255 in DEC));
The data output is transmitted as 3E$XX$06$TT$LVLV$CRC-8 Maxim, where
XX -network address,
TT - temperature parameter (1 byte, HEX value),
LVLV - level value (2 bytes, little endian);
Thus, one network address is used to transmit one pair of parameters sent by the Sensor(s) and retransmitted by the central unit.
The Pressure readings is transmitted after it is divided by 100. F.e. the Pressure reading is 700345 Pa but the value transmitted via the RS-485 interface will be 7003.
{| class="wikitable"
|+Table 1. Parameter table
!Pair of parameters (as indicated in the RS-485 settings of the central unit)
!Temperature parameter
!Level parameter
|-
|[[File:Note for devs 1.png]]
|RSSI
|Weight
|-
|[[File:Note for devs 2.png]]
|RSSI
|Pressure
|-
|[[File:Note for devs 3.png]]
|Vbat
|Weight
|-
|[[File:Note for devs 4.png]]
|Vbat
|Pressure
|-
|[[File:Note for devs 5.png]]
|RSSI
|Vbat
|}
'''ATTENTION!''' The tracker/gateway you plan to connect the central unit to must have the RS-485 interface, the LLS protocol and support as many network addresses as you need for the transmission of all relevant Sensor’s parameters.


= '''<big>Installation and configuration</big>''' =
= '''<big>Installation and configuration</big>''' =
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6) press the '''Save''' button
6) press the '''Save''' button
[[File:Imageв12в121.png|center|frameless]]
[[File:Imageв12в121.png|center|frameless]]




'''WARNING! The central unit computes a weight of a steering axle and a total weight of a semi-trailer truck, only if the calibration tables are saved in the sensors’ memory!!!'''
'''WARNING! The central unit computes a weight of a steering axle and a total weight of a semi-trailer truck, only if the calibration tables are saved in the sensors’ memory!!!'''
'''ATTENTION! To successfully use the "2 rear axles" mode, a second virtual steering axle with the same settings as the first must be added to the central unit. Both virtual sensors must have the "two rear axles" mode selected.'''
== '''<big>Configuring the virtual steering (spring) axle sensor when there are two sensors on the rear axle</big>''' ==
In addition, one of the latest firmware versions (1.1.6) introduced a feature for calculating the steering axis when more than one sensor is installed on the drive axles (to calculate the average reading from two sensors per axle).
'''<u>Below are screenshots of the settings</u>''':
After adding a virtual steering axis sensor with '''MAC address FF:FF:FF:FF:FF:F1''', you need to access its settings by clicking on it.
[[File:ECargosens Air sensors page 1.jpg|center|frameless]]
1) In the settings, in the '''"Rear Sensor No. 1.1"''' field, enter the serial number of '''<u>one of the sensors installed on the truck's rear axle</u>''' (semi-trailer axles are not required).
'''<u>The sensor's serial number is determined by its position in the list, numbered from 1 to 10 from top to bottom.</u>'''
1.2) In the settings, in the '''"Rear Sensor No. 1.2"''' field, specify the serial number of '''<u>the second sensor installed on the same rear axle of the truck</u>''' (semi-trailer axles are not required). '''(Add by clicking the "+" button.)'''
'''<u>The sensor's serial number is determined by its position in the list, numbered from 1 to 10 from top to bottom.</u>'''
2) Enter '''the rear axle weight''' (without the semi-trailer) in the '''"Rear Axle Load No."''' field.
<u>If the truck has '''multiple rear axles''' and each is equipped with '''two sensors''', you must add '''another rear axle.'''</u>
Use the '''"+" (plus)''' button to specify the serial number of the sensor installed on it and its weight without the semi-trailer. To delete an accidentally created rear axle, click the '''(Trash Can)''' button.
[[File:Steering axle settings 1.jpg|left|frameless]]
[[File:Steering axle settings 2.jpg|frameless]]
Next, you must specify:
1) '''the weight of the truck''' unit (the sum of the weights of all its axles, excluding the semi-trailer) or the weight of the dump truck
2) '''the distance''' from the center of the front axle to the center of the rear axles
3) '''the distance''' from the center of the front axle to the coupling device (the center of gravity of the dump body). This value '''cannot be greater''' than or equal to the distance from the center of the front axle to the center of the rear
4) '''The distance between''' the front steering axles (if there are two); if there is only one steering axle, enter '''the minimum value of 51 cm'''
5) Select the '''"two-axle truck"''' operating mode if there '''are two''' steering axles
6) Click '''"Save"'''
[[File:Steering axle settings 3.jpg|center|frameless]]
'''<big>ATTENTION! The cab unit will calculate the weight of the steering axle and the total weight of the truck-trailer combination only if the calibration tables are stored in the sensors' memory!!!</big>'''
'''<big>ATTENTION! To successfully use the "two-axle tractor" mode, you must add a second virtual steering axle to the cab unit with the same settings as the first one. The "two-axle" mode must be selected for both virtual sensors.</big>'''
.


To '''delete''' a virtual sensor of a steering axle, hold its button until the '''Disconnect''' option appears.
To '''delete''' a virtual sensor of a steering axle, hold its button until the '''Disconnect''' option appears.
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To '''connect''' a central unit to an '''I5 indicator''' in order to view the sum of all the sensors, including the virtual sensor of a steering axle, '''configure''' the i5 so it’s able to '''read or request''' the network addresses that are set for the certain sensors in the central unit. In the I5’s '''Display settings''' select the '''TD total level''' option.
To '''connect''' a central unit to an '''I5 indicator''' in order to view the sum of all the sensors, including the virtual sensor of a steering axle, '''configure''' the i5 so it’s able to '''read or request''' the network addresses that are set for the certain sensors in the central unit. In the I5’s '''Display settings''' select the '''TD total level''' option.
= '''Connecting the cabin unit to the I-5 digital display''' =
The eCargosens cabin unit is connected to the '''digital "I-5 Display"''' for data output to the screen in accordance with our general pinout shown below ('''"Connection to the GPS Terminal"'''). Simply connect lines A and B of the display to the cabin unit, and connect the display to the power source in the same way as the cabin unit.
'''NOTE: If the pressure value is displayed on the indicator, due to technical limitations, only the first 5 digits of the pressure value will be shown in the window.'''
'''You can also display the total data from all sensors and the average data for each axis, but only one of the two at a time.'''
== <big>'''Connecting the cabin unit'''</big> ==
If you need to connect the '''cabin unit''' only to the '''I-5'''—that is, if there will be no GPS tracker or other device to which the eCargosens system will be connected—you must connect the in-cab unit to the I-5, then select '''"Active Mode"''' in the mode settings and configure the polling interval (the I-5 will send requests).
If, however, the cabin unit will be used in conjunction with the I-5 indicator and a GPS tracker/terminal, you should select '''Passive Mode.'''
[[File:+ PLUS .png|left|frame|"+"]]
To pair the cabin unit and the sensors, tap '''"Connect Sensors"''' (Fig. 13, 2). Then tap the '''"+"''' button (Fig. 14).
[[File:Imageeqwe1212.png|center|frameless|624x624px]]
Next, select the '''"Wired"''' option, enter the network address (the value can range from 1 to 255), and click '''"Connect" (Fig. 23)'''. If the I-5 is not configured to operate in active RS-485 mode, or if there is no GPS tracker/gateway or other device that could request data from the sensor so that the I-5 can listen to the sensor’s response and display its readings, the data from the sensor will be displayed as 0 (Fig. 24).
The sensor’s network address can be found and, if necessary, changed in the eCargosens mobile app
'''Important! Each sensor connected via the RS-485 interface must have a unique network address.'''
To have the I-5 send data requests to the cabin unit connected to it, open the '''Settings mode menu (Fig. 27, 4)'''. '''Passive mode''' is set by default '''(Fig. 28).'''
If your eCargosens system will operate together with the '''I-5 indicator''' and a '''GPS terminal,''' leave '''Passive mode''' selected; no changes are necessary.
[[File:Image3123dqw.png|center|frameless|611x611px]]
If the '''eCargosens''' system will operate only with '''the I-5 indicator''', without a '''GPS terminal,''' select '''Active Mode'''. Then enter an interval in seconds ranging from 1 to 65 and click '''“Set”''' '''(Fig. 29).''' Next, click '''Save''' to apply the changes '''(Fig. 30).'''
[[File:Imagedasdcxzc222.png|center|frameless|622x622px]]
After selecting the '''Active RS-485 mode''' and setting the interval, you will see the axle load sensor readings in the app.
== <big>'''RS-485 Configuration'''</big> ==
After selecting the RS-485 polling mode, set the addresses for the sensors in the control unit and the I-5 display
To do this, connect to the '''eCargosens cabin unit''' and go to the '''RS-485 settings.'''
[[File:ECargosens main page app 1.jpg|center|frameless]]
Next, click on the connected axle load sensor and select the addresses for transmitting the sensor data.
[[File:ECargosens settings page app 1.jpg|left|frameless]]
[[File:ECargosens settings page app 2.jpg|frameless]]
'''Example:'''
[[File:ECargosens settings page app 3.jpg|center|frameless]]
Next, connect '''the I-5 digital display''' to the '''eCargosens cabin unit''' via '''RS-485''', and configure the '''RS-485 settings''' to send data to the '''same addresses''' you selected in the '''cabin unit''' for the '''axle load sensor parameters.'''
[[File:I-5 indicator main page settings 1.jpg|left|frameless]]
[[File:I-5 indicator main page settings 2.jpg|frameless]]
'''Example:'''
[[File:I-5 indicator main page settings 3.jpg|center|frameless]]
<blockquote>'''<u>Important! The addresses in the eCargosens cabin unit and the I-5 digital display must match for the data to be displayed correctly:</u>'''</blockquote>
[[File:ECargosens + i-5 addresses setting example.png|center|frameless|669x669px]]
== <big>'''Calibration of trailer axles when only one sensor is installed'''</big> ==
In situations where only one sensor is installed on the semi-trailer but you need to display the weight of each axle separately on the I5 indicator screen or monitoring platform, you can use this method.
[[File:ECargosens settings page app 4.png|center|frameless|618x618px]]
In the app's main menu, go to the RS485 Settings section and select the sensor installed on the semi-trailer. In this menu, you can configure RS485 data transmission to the required addresses. Select the options as shown in the image: '''"Weight, RSSI," "Pressure, RSSI," "Pressure, Battery Voltage(Vbat)"'''
Thus, the I5 display can provide information on the pressure and weight of the semi-trailer’s axles. The weight can be displayed on one of the I5 screens without recalculation, but to obtain the weights of the other axles, a calibration (weighing) table must be added in the corresponding menu of the display. When weighing the axles of a semi-trailer, the scales may show different masses on the axles even with the same load in the semi-trailer; therefore, the weighing tables for different axles may vary.
<blockquote>It is important to remember that pressure values transmitted via RS-485 are reduced by a factor of 100. For example, 65,000 Pa will be transmitted as 650; '''therefore, when creating the calibration table in the I5 indicator, the pressure value must be divided by 100 before entering it into the table.'''</blockquote>
You can upload the table itself to the '''I-5 display.'''
To do this, you need to:
1) Select the sensor in the '''I-5 display''' on the connection page and click on it; this will open the sensor settings menu:
[[File:I-5 sensor settings 1.jpg|center|frameless]]
2) Then click the red '''"Go to Calibration"''' button
[[File:I-5 sensor settings 2.jpg|center|frameless]]
<blockquote>Please note that you can import the table using an existing calibration file or enter the data manually.</blockquote>
3) If you select '''"Select a file"''' the file explorer on your smartphone will open. Navigate to the folder where you saved the calibration file and select the desired file.
[[File:File directory example 1.png|center|frameless|539x539px]]
4) Then select the '''"Apply calibration table"''' checkbox.
[[File:I-5 sensor settings 3.jpg|center|frameless]]


= '''<big>Central unit wiring</big>''' =
= '''<big>Central unit wiring</big>''' =
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