1. An electromotive can opener having a body which is formed by a first half and a second half; and a motor, a touch switch for actuating the motor, a high twisting gear set, and a cutter handle have assembled to the body; wherein
the body formed by the first half and second half has a body handle; the body handle is formed with a space for receiving a battery set for enabling the motor; the first half has a via hole, an axial hole, and a plurality of posts for confining a can;
the high twisting gear set is installed with a disk gear, a first following gear, a second following gear, a third driving gear, a fourth driving gear, and a driving gear; a lower periphery of the disk gear has a round gear which is engaged to a dynamic gear of the motor; the disk gear is installed with and movable with a main driven gear which is engaged to the first following gear; the first following gear is installed with and movable with a first driven gear and is engaged to the second following gear; the second following gear is installed with and movable with a second driven gear and is engaged to a third following gear; the third following gear is installed with and movable with a third driven gear and is engaged to a fourth following gear; the fourth following gear is installed with and movable with a driven shaft; the driven shaft passes through the via hole of the first half and then is assembled with the driving gear; by above structure, the motor can drive the driving gear;
the cutter handle has one end having a shaft; by the shaft of the cutter handle and a stud, the cutter handle is pivotally installed to the axial hole of the first half; a knife protrudes out of the cutter handle; when a can is to be opened, the knife will cut into the can and the touch switch is pressed by the cutter handle to actuate the motor;
wherein the can is clipped and thus rotates so as to be cut by the knife; and the high twisting gear set forming the plurality of gears provides a high twisting force for securing the can firmly.
2. The electromotive can opener as claimed in claim 1, wherein the cutter handle has a metal enhancing plate; the metal enhancing plate has a resisting protrusion at a position corresponding to the knife; when the knife cut into the can, the resisting protrusion will press the touch switch so as to actuate the motor.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Communication system for communication between and among mobile nodes in particular between and among vehicles, each node comprising
at least one sender unit for transmitting at least one message via at least one broadcast channel as well as
at least one receptor unit for sensing at least one message being sent by at least one neighboring node via the broadcast channel, characterized in that the transmission of the messages is scheduled dependent on the usage of the broadcast channel in particular dependent on
the load of the broadcast channel
the SignalNoise ratio on the broadcast channel andor the contents andor type of messages received via the broadcast channel
2. Communication system according to claim 1, characterized by at least one scheduling unit being provided by at least one channel occupation detection unit with at least one parameter, in particular
at least one bandwidth occupation coefficient (a) andor
at least one SignalNoise ratio coefficient (\u03b2), said scheduling unit calculating the maximum overall message rate for each node
fulfilling the QualityoflService requirements expressed in QoS parameters such as
maximum delay,
delay variance andor
bandwidth guarantee,
under the condition of the calculated maximum overall message rate storing each message temporarily in at least one queuing list and
notifying at least one message generating unit
when the message is successfully transmitted via at least one
CarrierSenseMultipleAccessCollisionAvoidance device or
if the transmission of the message has failed.
3. Communication system according to claim 2, characterized in that
the message generating unit is designed for generating
hello messages as related to safety purposes,
warning messages as related to safety purposes and
data messages as related to general purposes, and
in that the overall available bandwidth is subdivided between these three types
of messages on the basis of information as supplied from the application level.
4. Communication system according to claim 1, characterized by at least one message analyzing unit
for decoding the messages provided by the neighboring nodes and
for processing these decoded messages to supply the information, for example about the number (N) of detected nodes in the neighborhood, to at least one QualityoflService parameter generatingregulating unit
wherein the information about the number of detected neighboring nodes is retrievable by considering the number of hello messages received with different identification number within a certain range.
5. Communication system according to claim 4, characterized in that the QoS parameter generating regulating unit calculates the QoS requirement parameters for the scheduling unit on the basis of information received
from the message analyzing unit and
from at least one local situation analyzing unit taking into account, for example, the speed of the node.
6. Communication system according to claim 4, characterized by at least one external message receiver unit for sending the messages correctly sensed by the receptor unit to the message analyzing unit.
7. Method of communication between and among mobile nodes in particular between and among vehicles, with each node
sending at least one message via at least one broadcast channel and
receiving at least one arriving message being sent by at least one neighboring node via the broadcast channel
characterized in that the transmission of the messages is scheduled dependent on the usage of the broadcast channel in particular dependent on
the load of the broadcast channel,
the SignalNoise ratio on the broadcast channel andor
the contents andor type of messages received via the broadcast channel.
8. Method according to claim 7, characterized in that
the messages are distinguished into three different kinds of messages, called
hello messages
warning messages and
data messages and
in that the overall available message rate is subdivided into three different subrates, whose respective value is dependent on information retrieved
from external messages and
from a situation analysis.
9. Method according to claim 7, characterized
by the disposal of bandwidth being regulated in the case of revelation of at least one \u201cdispose bandwidth\u201d message in the broadcast channel as well as
by the normal bandwidth partition being restored between the nodes.
10. Use of at least one communication system according to andor of the method according to claim 7 for wireless adhoc networks, in particular for automotive or car-to-car communication, wherein cars
interact cooperatively and distribute for example warning messages especially
in order to avoid collisions during lane change or merge manoeuvres and
for reporting of invisible obstacles, for example obscured or shadowed objects, when vehicles are moving in different directions within the same area.
11. Mobile node for a communication system the node comprising
at least one sender unit for transmitting at least one message via at least one broadcast channel as well as
at least one receptor unit for sensing at least one message being sent by at least one neighbouring node via the broadcast channel characterized in that the transmission of the messages is scheduled dependent on the usage of the broadcast channel in particular dependent on
the load of the broadcast channel
the SignalNoise ratio on the broadcast channel andor
the contents andor type of messages received via the broadcast channel