摘要:
An electronic key entry system for vehicles has a security ECU mounted in a vehicle for checking an electronic key via radio communication with the same. The ECU includes a CPU and a PWM output unit. The PWM output unit generates an interrupt request at every edge time of PWM pulse transmitted to the electronic key. The CPU sets a pattern of PWM output of a next cycle in response to the interrupt request so that the PWM output unit transmits a pulse corresponding to the set PWM output pattern. The CPU also stops pulse transmission, when no response is received from the electronic key in the course of communication in a plurality of stages.
摘要:
A mobile device includes a transmitting unit that, each time an ON operation of a switch in a first mode is performed, transmits a wireless signal corresponding to the first mode ON operation by changing a frequency band among three or more frequency bands and that, when an ON operation of the switch in a second mode is performed, transmits a wireless signal, corresponding to the second mode ON operation, in the frequency band selected at that time. The transmitting unit includes a frequency band computing unit that selects one of the three or more frequency bands through a computation for changing a communication environment when the second mode ON operation of the switch is repeatedly performed. A receiver of the in-vehicle device receives a wireless signal transmitted from the transmitting unit and recognizes command information allocated in advance in correspondence with each ON operation mode of the switch.
摘要:
A remote control system includes a mobile device and a receiver connected to a control target. The mobile device includes an input unit accepting user's input operation; an operation signal transmission unit wirelessly transmitting an operation signal corresponding to the input operation during the input operation; a frequency switching determination unit determining whether to switch the transmission frequency band from a first frequency band to a second frequency band based on at least any one of a manner of the input operation and a state of wireless communication; and a transmission frequency switching unit switching the transmission frequency band when the frequency switching determination unit determines to switch the transmission frequency band. The receiver includes an operation signal reception unit receiving the operation signal; and a control unit controlling the control target on the basis of the received operation signal.
摘要:
In a method of processing a call in response to a connection request that includes reported bandwidths in both upstream and downstream directions, a communication node on the calling side (1) manages available bandwidths in upstream and downstream directions on a per-path basis; (2) searches for a path having upstream/downstream available bandwidths, which are greater than the upstream/downstream reported bandwidths; (3) if such a path can be found, accepts the call connection request as a call communicated in both directions on this path; (4) if such a path cannot be found, searches independently for a path having an available bandwidth greater than the upstream reported bandwidth and a path having an available bandwidth greater than the downstream reported bandwidth; and (5) if these two paths can be found, accepts the call connection request as a call communicated on the separate paths on a per-upstream- and downstream-direction basis.
摘要:
A voice guidance system for a vehicle includes a transmitter, a tuner, a touch sensor, a smart ECU, a D-seat speaker, and a P-seat speaker, which are all mounted in a vehicle. It is used for an in-vehicle system, such as a smart entry system, which performs intercommunication with a portable unit. In this guidance system, a smart ECU stores in a memory information indicating that a user has performed predetermined operation with the smart entry system. When it is determined that a user will use the smart entry system, the following processing is performed: voice guidance about the operation procedures for the system is outputted from a driver seat speaker or a passenger seat speaker when information indicating that the user has performed the predetermined operation in the past is not stored in the memory; and voice guidance is disabled when information indicating that the user has performed the predetermined operation is stored.
摘要:
In an in-vehicle device remote control system, a vehicle-side device determines in which detection area an electronic key exists based on a response signal transmitted from the key in response to request signals, and a control door to be operated in correspondence to the detection area in which the key exists. The vehicle-side device notifies a user that the key is an authorized one by light, sound, display or the like on the determined control door. With this operation, it is readily recognized by the user because the user is approaching the control door.
摘要:
Portable devices are provided to occupants, who frequently use a vehicle. Based on a result of verification of an ID code of respective portable devices through intercommunication between the respective portable devices and a vehicle side unit, a number and a location of the occupant, who approaches the vehicle to get into a passenger compartment of the vehicle, are sensed. Based on the sensed result, a position of a seat, which is predicted to be used by the corresponding occupant, is changed.
摘要:
A drill for producing a deep hole that does not produce a bend of the hole during cutting. A drill body is spirally provided with a pair of cutting edges. The cutting edges are spaced at about 180 degrees apart around a core of the drill and the edge line of a tip section of the cutting edges is depressed toward the core of the drill. When the outside dimension of the drill is 7.4 mm, an angle between the edge line and a line perpendicular to the core is 5 degrees and the core thickness (t) is 2.96 mm. Further, the drill is provided with a guide section for preventing bending during a cutting operation. The guide section is provided on a heel side on the same circumference as that on which the outer end section of the cutting edges passes.
摘要:
A portable unit locating system is incorporated in a vehicle equipment control system including a portable unit and an in-vehicle unit, which communicate each other for controlling vehicle equipment such as doors. The in-vehicle unit includes inside transmitters, a receiver, a comparison ECU and a display. The transmitters transmit respective request signals in a vehicle compartment. The comparison ECU determines whether any response signal has been received from the portable unit in response the request signals, while gradually varying output levels of the request signals. The comparison ECU then specifies a location of the portable unit based on a change in determination results. The display visually or audibly notifies the specified location of the portable unit to a vehicle user.
摘要:
A path switching system can dramatically decrease time required until a transfer path of user data is switched to a detour path when a failure occurred to a system/line constituting the network. In the path switching system, a path is set by a switch device and a plurality of relay devices adjacent to the switch device, and the switch device has a notification processing section notifying information to specify a corresponding relay device to the plurality of other relay devices when a failure of an adjacent relay device or a line failure between adjacent relay devices is detected, and the relay device has a path change processing section canceling information on the path that passes through the relay device detected to have a failure, from the information notified by the notification processing section of the relay device.