nextbike NXTBFVL3 Locking Unit with RFID Reader User Manual 150129 Electric Lock Final

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Document ID	2533569
Application ID	/VN1wgkIZN2t/NJD6i4vyg==
Document Description	User Manual
Short Term Confidential	No
Permanent Confidential	No
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Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	180.15kB (2251936 bits)
Date Submitted	2015-02-13 00:00:00
Date Available	2015-02-13 00:00:00
Creation Date	2015-01-30 11:09:31
Producing Software	GPL Ghostscript 9.04
Document Lastmod	2015-01-30 11:09:31
Document Title	150129_Electric Lock_Final
Document Creator	PDFCreator Version 1.2.3
Document Author:	juergen

Nextbike GmbH
Nextbike
Electric Lock
Instruction Manual
09.01.2015
Read me first
o Before using the device, please read the entire manual and all safety instructions
to ensure safe and proper use.
o The descriptions in this manual is based on the default settings of the device.
o The images and screenshots used in this manual may differ from the actual
product.
o The contents of this manual may differ from the product, or from software
provided, software versions are individually created based on the requirements of
the particular bicycle rental system.
o Formatting and delivery of this manual is based on nextbike operating systems.
o Functions of this on-boardcomputer may be different from those provided with
the bicycles - functions vary by region or hardware specifications.
o Please keep this manual for future reference.
Copyright © 2014 nextbike GmbH
This manual is protected under international copyright laws.
No part of this manual may be reproduced, distributed,
translated, or transmitted in any form or by any means,
electronic or mechanical, including photocopying, recording,
or storing in any information storage and retrieval system,
without the prior written permission of nextbike GmbH.
Table of contents
1.
Summary .............................................................................................................................................................. 3
2.
Applications ......................................................................................................................................................... 3
3.
Hardware Description .......................................................................................................................................... 4
4.
Further Characteristics ......................................................................................................................................... 6
5.
Specification ......................................................................................................................................................... 6
6.
Usage ................................................................................................................................................................... 6
7.
Cautions ............................................................................................................................................................... 7
8.
FCC-statements .................................................................................................................................................... 8
1.
Summary
The nextbike electric lock is an electronic system used in a bike rental system, to lock
and unlock bicycles in a rack at central rental places. The complete system contains of
one terminal and several racks.
A trigger switch recognizes the presence of a bicycle. Via RFID reader ID of each bike
is read. An electromechanical locking mechanism locks the front wheel securely or
releases it for usage. A buzzer and a led give the customer feedback about the status.
The communication between the lock unit and terminal is done via a fail-safe
bidirectional data bus. The power supply is provided from the terminal. The power
supply is low-power optimized, because the whole system is battery and solar powered.
A RJ45-connector and –cable is used for connecting the systems.
Electronics such as mechanics are realized vandal-proof and weather resistant. Due to
the electronic is put in a small cup and potted with a compound. All connectors are
partially filled with Vaseline.
2.
Applications
o Bicycle rental/return
3. Hardware Description
3.1
Design
3.2
Block Diagram
3.3 Microcontroller
A low-power microcontroller provides a bus node, it checks the input and output
components and minimizes the power consumption of the unit.
The bus address and other specific parameters must be stored in non-volatile memory.
The firmware of the controller must be updatable during operation. Updates run via
the data bus.
The firmware and the parameters are protected by 16 bit CRC.
3.4 RFID Reader
The RFID reader AS3910 is used to read the ISO14443 tags at the front wheel of the
bicycle. The lock module is located in a metal construction and so antenna is
optimised for working in this environment.
3.5 Acoustic Signal and LED
An acoustic signal and a green LED indicates to the user locking and unlocking of the
bike.
3.6 Interface for communication and power supply
The RS485 bus for data communication between the lock modules and the terminal has
the following characteristics:
Fail safe
Bidirectional
Low-Power optimized
Maximum 20 modules and one terminal
Maximum 10m to terminal, 15m complete system
Power supply via bus cable
Data protection with 16 bit CRC
3.7 Bicycle detection
Detecting an inserted bike by cyclic RFID queries requires too much energy. So instead
a small switch is closed by a knob mounted at the bicycle fork.
3.8 Housing
The actual body of the whole system is the rack coming from customer. Electronic
module, switches and motor unit are mounted into this rack. Additionally electronic
module is potted.
4.
Further Characteristics
4.1. Operational conditions Degree of protection IP 52. Temperature range between 14
°F and 122 °F.
4.2. Quality management
The product development and if necessary production is ensured by a quality
management system according to DIN EN ISO 9001.
5.
Specification
Content
Dimensions
Weight
Storage temp.
Operation temp
Degree of protection
Sockets
Humidity
6.
Electric lock specification
Roller – Dimension: 45 mm x Height: 38 mm
150 g
- 4 °F to 40 °F
14 °F to 122 °F
IP 52.
2 x RJ45
5% - 85% non-condensing
Usage
6.1 Locking and Unlocking
The electromechanical locking and unlocking is controlled by the terminal.
In open and in closed state, no electrical energy is required for this. Therefore the
actuator is a bi-stable system. In case of a breakdown of the power supply the lock
remains in its current state.
Regardless of the control command it must be possible to determine the current lock
status. On the one hand, several attempts can be made to close the lock (e.g. due to
pulling the wheel too early). On the other hand, the correct state of the lock is always
returned.
For means of safety an end position switch is included, that indicates a complete closed
lock.
6.2 Power supply
Power is supplied via the bus cable from the terminal. The lock modules have a
power management with optimized low-power modes to minimize power requirements.
The power supply is designed immune to interference, so that the state of the lock unit
will not be affected by fault conditions.
The modules are arranged in a line topology. So the resistance of the supply line
increases with the distance from terminal. In order to avoid potential trouble with the
locking mechanism, reserves for the supply can be included. In final system an
additional line of low electrical resistance can be connected from terminal to the furthest
module. So a ring is built up on the supply line. Additionally in every module a capacity
is included and buffers the module and the supply line.
For connecting terminal and FVL3 RJ45-cables are used.
7.
Pin-Number
Signal
VCC
Gnd
BUS A
BUS A
BUS B
BUS B
Gnd
VCC
Cautions
o Please comply with the instruction to maximize the unit life.
o Keep the unit interior dry. Any liquid, i.e. rain, may destroy or damage the inside
circuitry.
o Don’t expose the unit to temperatures outside aforementioned temperature range.
o Please handle the unit with care. Excessive vibration or shaking might damage
the unit.
o Clean the unit with a clean cloth, don’t use any chemicals or detergent.
o Don’t disassemble or refit unit.
o Please use charger provided by manufacturer only. Using other chargers might
resolve in damaging the unit.
o Don’t disassemble or refit unit.
o Only qualified personnel should service the device. Faulty installation or service
may be dangerous and may invalidate any warranty applicable to the device.
o Any changes or modifications to electric lock not expressly approved in this
document are not acceptable.
8.
FCC-statements
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and (2) this
device must accept any interference received, including interference that may cause
undesired operation.

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