摘要:
Provided is a parking assistance apparatus utilizing a fixed target by taking an image thereof, the parking assistance apparatus being capable of recognizing the fixed target with high recognition accuracy while using simple image recognition processing. A mark (M) includes a plurality of illuminators (1). Sets of the plurality of illuminators (1) form characteristic points C1 to C4. Turn-ON request generation means (36) of a vehicle-side device (20) sequentially generates turn-ON requests for each characteristic point and transmits the generated turn-ON requests to a parking-lot-side device (10). A display control unit (11) of the parking-lot-side device (10) turns ON the characteristic points based on the turn-ON requests. An image recognition unit (31) of the vehicle-side device (20) performs image recognition for the characteristic points sequentially. Using the recognition result, positional parameter calculation means (34) of the vehicle-side device (20) calculates positional parameters of a camera with respect to the mark (M).
摘要:
A parking assist apparatus has a camera for capturing an image of a mark from a vehicle, wherein the mark is fixed to a parking area with a predetermined positional relation to the parking area and has a predetermined figure, and the vehicle is supposed to park in the parking area. The parking assist apparatus further has a vehicle-position detecting device for detecting a position of the vehicle based on the image of the mark captured by the camera and outputting a position data of the vehicle, a vehicle position data-storing device for storing the position data of the vehicle, a data acquisition device for acquiring attribute data of the parking area and the vicinities of the parking area; and a vehicle guide device for guiding the vehicle in moving out of the parking area, based on the position data of the vehicle in the parking area stored in the vehicle position data-storing device and the attribute data of the parking area and the vicinities of the parking area given by the data acquisition device.
摘要:
The purpose of the present invention is to simplify a circuit for carrying out an interleaving and a de-interleaving processing. A RAM address control outputs an address by an addition of an address output from an address ROM and a predetermined offset, based on state information. The address ROM stores address data corresponding to a rearrangement rule for data of each modulation system. A de-interleaving or an interleaving processing is accomplished by reading out of a RAM, or writing thereto, the data of an address specified by the RAM address control.
摘要:
A wireless communication apparatus is equipped with a plurality of antennas. A switch leads a received signal by way of an antenna selected according to an antenna switching signal to a demodulator unit. Software installed in a MAC unit generates a first switching signal. A diversity control unit generates a second switching signal by the built-in hardware circuit. The first switching signal is used as an antenna switching signal during a packet receiving ready period, while the second switching signal is used as an antenna switching signal during a period for receiving a packet.
摘要:
In a vehicle backward movement assisting apparatus for in-line parking, at a stop position of a vehicle, a seesaw switch is manipulated until an in-line guide line is superimposed on a target point which is a corner of a frame of a parking space, and a steering wheel is turned until the vehicle space mark is superimposed on the parking space, and the vehicle is moved backward while the steering angle of the steering wheel is held. When an eye mark is superimposed on the parking space, the vehicle is stopped, and the steering angle of the steering wheel is made maximum and the vehicle is moved backward, to thereby complete the in-line parking at the parking space.
摘要:
A wireless communication apparatus is equipped with a plurality of antennas. A switch leads a received signal by way of an antenna selected according to an antenna switching signal to a demodulator unit. Software installed in a MAC unit generates a first switching signal. A diversity control unit generates a second switching signal by the built-in hardware circuit. The first switching signal is used as an antenna switching signal during a packet receiving ready period, while the second switching signal is used as an antenna switching signal during a period for receiving a packet.
摘要:
A steering assist apparatus includes a camera for picking up the rear side of a vehicle, a monitor disposed in a driver's compartment of the vehicle, a steering angle sensor for detecting a steering angle of a steering wheel, and a display controlling unit for displaying on the monitor an image through said camera when the vehicle reverses and for superimposing and displaying on said monitor a guide display for assisting the drive of the vehicle when the vehicle is to be parked. The guide display includes a steering start guide line fixedly displayed in a predetermined position of an image field of the monitor for guiding a steering start position for parking, and a steering amount guide mark moved and displayed along the steering start guide line on the image field of the monitor in correspondence with a steering angle of the steering wheel detected by the steering angle sensor. The driver performs the steering operation of the vehicle while recognizing the position for the opposite turning of the steering wheel and the steering amount and the steering start position for parking on the basis of the image on the rear side of the vehicle and the steering amount guide mark and the steering start guide line.
摘要:
It is an object of the present invention to provide a gain control circuit capable of reducing convergence time needed to stabilize the output level changing due to the fluctuations of an input level, maintaining the convergence time constant even if a signal with a different level is inputted to a variable gain amplifier and easily modifying a setting value even if the gain characteristic of the variable gain amplifier changes. A gain control unit normally adjusts the gain of a VGA according to a difference computed by a computation unit. If an input signal with a high level is inputted to the VGA immediately after receiving a packet and the output level of the VGA exceeds the threshold value of a step-down unit, the gain of the VGA can be forced to reduce by a prescribed value.
摘要:
A charging device for a vehicle includes a device-side power line communication (PLC) modem, a device-side control pilot (CPLT) signal generating circuit, a device-side CPLT signal detecting circuit and a device-side low-pass filter (LPF). The device-side PLC modem is used for PLC between the vehicle and the charging device. The device-side CPLT signal generating circuit is used for generating CPLT signals. The device-side CPLT signal detecting circuit is used for detecting the CPLT signals transmitted from the vehicle through the signal line to determine whether or not the vehicle is ready for charging and whether or not the charging is completed. The device-side LPF is connected to an input of the device-side CPLT signal detecting circuit and has such a frequency characteristics that allows the CPLT signals to pass through the device-side LPF but removes signals having frequencies in a frequency band used for PLC.