MeiTrack T366G Manuale utente

MEITRACK A91 Passenger Flow Sensor User Guide

MEITRACK A91 Passenger Flow Sensor

User Guide

Applicable Model: T366G

MEITRACK A91 Passenger Flow Sensor User Guide

Change History

File Name

MEITRACK A91 Passenger Flow Sensor User Guide

Applicable Firmware

T366G_Y15V216

Creation Date

2019-02-12

Subproject

Accessory User Guide

Total Pages

Version

V1.0

Confidential

External Documentation

MEITRACK A91 Passenger Flow Sensor User Guide

Contents

1 Copyright and Disclaimer........................................................................................................................................... - 4 -

2 Product Introduction ................................................................................................................................................. - 4 -

2.1 Product Functions......................................................................................................................................... - 4 -

2.2 Function Description..................................................................................................................................... - 4 -

3 Main Device and Accessories .................................................................................................................................... - 5 -

4 Product Specifications ............................................................................................................................................... - 6 -

5 Installation................................................................................................................................................................. - 7 -

5.1 Connecting the A91 to the T366G ................................................................................................................ - 7 -

5.2 Installing the A91.......................................................................................................................................... - 7 -

5.2.1 Installing the Passenger Counter ......................................................................................................... - 7 -

5.2.2 Installing Extension Cables................................................................................................................... - 8 -

5.2.3 Installing the Door Opening and Closing Signal Cable ......................................................................... - 8 -

5.2.4 Installing Cameras.............................................................................................................................. - 10 -

5.2.5 Installing All Parts............................................................................................................................... - 11 -

6 A91 Debugging ........................................................................................................................................................ - 12 -

6.1 A91 Running Status..................................................................................................................................... - 12 -

6.2 APC Assistant Debugging Tool..................................................................................................................... - 12 -

6.3 Adjusting the Angle of Cameras.................................................................................................................. - 14 -

7 Configuring the A91 on Meitrack Manager ............................................................................................................. - 14 -

7.1 Selecting a Peripheral ................................................................................................................................. - 14 -

7.2 Setting the GPRS Event ............................................................................................................................... - 14 -

8 Clearing the Counter................................................................................................................................................ - 15 -

8.1 Clearing Method......................................................................................................................................... - 15 -

8.2 Setting A91 Parameters – BAE .................................................................................................................... - 15 -

9 Querying Reports from the MS03 Platform............................................................................................................. - 16 -

9.1 Querying Passenger Counter Reports......................................................................................................... - 16 -

9.2 Querying Alert Reports............................................................................................................................... - 17 -

MEITRACK A91 Passenger Flow Sensor User Guide

1Copyright and Disclaimer

, and are trademarks that belong to Meitrack Group and its subsidiary.

The user manual may be changed without notice.

Without prior written consent of Meitrack Group, this user manual, or any part thereof, may not be reproduced for

any purpose whatsoever, or transmitted in any form, either electronically or mechanically, including photocopying

and recording.

Meitrack Group shall not be liable for direct, indirect, special, incidental, or consequential damages (including but

not limited to economic losses, personal injuries, and loss of assets and property) caused by the use, inability, or

illegality to use the product or documentation.

2Product Introduction

2.1 Product Functions

⚫Count the number of passengers entering or leaving a vehicle from the front or back door

⚫Count the total number of passengers entering or leaving a vehicle from the front or back door

⚫Count the number of remaining passengers inside a vehicle

⚫Front/back door camera occlusion alert

⚫Front/back door camera recovery alert

⚫Front/back door camera abnormal alert (camera disconnected)

⚫Front/back door camera normal alert (camera connection normal)

2.2 Function Description

Based on the machine vision technology, the A91 passenger flow sensor collects passengers' head and shoulder

information by the non-contact model and automotive image sensor. After receiving a door opening signal, the

passenger counter starts to count the number of passengers entering and leaving a vehicle by the pattern recognition

technology. After the doors are closed, the T366G vehicle tracker will upload the number of passengers and

positioning information to the back-end server and platform, which implements statistical analysis of the number of

passengers at each station and along each driving route, and provides accurate data for the route configuration and

vehicle dispatching. The unit can be installed into buses, subways, trains, ships, shopping malls and buildings.

MEITRACK A91 Passenger Flow Sensor User Guide

3Main Device and Accessories

Name

Quantity

Picture

Passenger counter

Camera

Main wire harness

Power cable

MEITRACK A91 Passenger Flow Sensor User Guide

Door opening and closing

signal cable

Extension cable with 4-pin

aviation connectors (15

meters)

Used to connect cameras to the passenger counter.

Extension cable with 4-pin

aviation connectors (8

meters)

Used to connect the door opening and closing signal cable

to the passenger counter.

4Product Specifications

Item

Description

Passenger counter weight

600g

Passenger counter dimension

200.3 mm x 146.5 mm x 41.3 mm

Passenger counter voltage

9–36 V DC (recommended: 24 V)

Passenger counter current

300 mA

Passenger counter power

7.56 W (input voltage: 24 V)

Camera dimension

38 mm x 38 mm

Camera voltage

12 V

Camera current

40 mA (day); 140 mA (night)

Camera power

0.84 W (day); 3.24 W (night)

Operating temperature

-40°C to 85°C

Operating humidity

0%–95%

Baud rate

115200 bps

Passenger flow speed

< 10 m/s (If the speed is lower than 2 m/s, the accuracy is higher.)

Counting accuracy

92%

MEITRACK A91 Passenger Flow Sensor User Guide

5Installation

5.1 Connecting the A91 to the T366G

T366G

A91

Power supply

GND

RS232 TX

RS232 RX

RS232 TX

5.2 Installing the A91

5.2.1 Installing the Passenger Counter

The installation location varies depending on vehicle types. It is recommended that the passenger counter should be

installed behind the driver's seat, be kept away from the humid environment, and be placed in an iron cabinet to

prevent unauthorized personnel from touching it. In addition, the counter needs to be connected to the main wire

Rear view of the passenger counter:

Note: At present, we can use the power interface and main wire harness interface of the passenger counter, while

other interfaces are reserved.

The passenger counter needs to be connected to the 12 V/24 V DC power supply and connected to the cameras,

vehicle doors and T366G's RS232 interface by the main wire harness (labelled with wiring instructions). When the

counter detects that a vehicle door is open, it will start counting. When the counter detects that a vehicle door is

closed, it will stop counting and upload statistical results to the server. The following table describes the DC power

cable and main wire harness:

Interface

Wiring

Description

MEITRACK A91 Passenger Flow Sensor User Guide

DC power

cable

Power cable (red)

The input voltage is 12 V or 24 V. It is used to supply power to the A91.

GND (black)

Connect to the GND wire.

ACC (yellow)

Connect to the ACC cable. When the passenger counter detects that

the ACC is off, there is a delay of five minutes and it will automatically

enter the sleep mode. When the ACC is on, it will enter working mode

again, which ensures counting accuracy and reduces power

consumption.

Main wire

harness

Camera (front door)

Connect to the camera at the front door through the extension cable

with 4-pin aviation connectors (15 meters).

Camera (back door)

Connect to the camera at the back door through the extension cable

with 4-pin aviation connectors (15 meters).

Front door opening and

closing signal cable

Connect to the front door opening and closing signal cable through

the extension cable with 4-pin aviation connectors (8 meters).

Back door opening and

closing signal cable

Connect to the back door opening and closing signal cable through

the extension cable with 4-pin aviation connectors (8 meters).

RS232 peripheral

Connect to the TX (red), RX (blue) and GND (black) interfaces of the

T366G.

RS485 peripheral

Reserved

5.2.2 Installing Extension Cables

Extension cables are used to connect cameras to the passenger counter, and the door opening and closing signal

cable to the passenger counter.

It is recommended that concealed wiring should be done, for example, through the vehicle's ventilation pipes. Do

not expose extension cables to the outside. The ventilation pipes of each door have a set of extension cables. One of

the extension cables is connected to cameras, and the other is connected to the door opening and closing signal

cable. Extension cables are labelled with wiring instructions to avoid wrong wiring.

5.2.3 Installing the Door Opening and Closing Signal Cable

Install the 3-pin door opening and closing signal cable listed in the accessories. The pin definitions are shown in the

following figure:

MEITRACK A91 Passenger Flow Sensor User Guide

The opening and closing of most vehicles' doors are controlled by an air valve. The control cable of the air valve has

three pins, that is, opening the door, closing the door, and GND, which correspond to the three pins of the door

opening and closing signal cable. Pull out the 3-pin connector of the air valve control cable, and connect the male

and female connectors on both ends of the cable to the male and female connectors on the door opening and closing

signal cable, as shown in the following figure:

MEITRACK A91 Passenger Flow Sensor User Guide

5.2.4 Installing Cameras

Each camera needs to be installed at the front and back doors. The distance that cameras are above the ground of

the vehicle is about 2.2 meters. Meanwhile, the cameras need to be installed in the middle of the upper part of the

doors and are about 0.5 meters away from the glass door (A ≈ 0.5 meters, as shown in the following figure).

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