摘要:
A plasma display device includes a PDP module having a plasma display panel (PDP), a drive circuit applying positive and negative sustain pulses having the same absolute value to the PDP, and a voltage detection circuit detecting voltage from the power supply module, and a power supply module having voltage output terminals connected to voltage input terminals of the PDP module through connection means, generating a positive voltage required to produce positive sustain pulses and a negative voltage required to produce negative sustain pulses from an AC supply voltage, both pulses being supplied to the PDP module, outputting both voltages from the voltage output terminals, and performing a feedback control for the output voltage based on a detection result from the voltage detection circuit, thereby effectively generating the positive and negative voltages required to produce the positive and negative sustain pulses without complex circuit configuration.
摘要:
A vehicle lamp controller, a vehicle lamp system, and a vehicle lamp control method are provided. The vehicle lamp system includes an acceleration sensor, a vehicle lamp, and the vehicle controller. The controller includes a receiver configured to receive an acceleration information detected by the acceleration sensor, a control unit configured to derive a vehicle longitudinal direction acceleration and a vehicle vertical direction acceleration from the acceleration information, and to generate a control signal for instructing an adjustment of an optical axis of the vehicle lamp, based on a variation in a ratio between a temporal change amount of the vehicle longitudinal direction acceleration and a temporal change amount of the vehicle vertical direction acceleration during at least one of an acceleration and a deceleration of a vehicle, and a transmitter configured to transmit the control signal to an optical axis adjusting portion of the vehicle lamp.
摘要:
A vehicle head lamp light distribution controller includes an ADB controller configured to: detect a position of a vehicle present ahead of a subject vehicle; determine whether the vehicle ahead of the subject vehicle is a preceding vehicle or an oncoming vehicle; set a threshold vehicle position based on whether the vehicle ahead of the subject vehicle is a preceding vehicle or an oncoming vehicle; compare the threshold vehicle position and the detected vehicle position; and switch light distribution of head lamps of the subject vehicle based on the comparison between the threshold vehicle position and the detected vehicle position.
摘要:
A control device of a vehicle lamp includes: a receiving section which receives an acceleration value usable to derive a tilt angle of a vehicle to a horizontal plane, wherein the tilt angle of the vehicle to the horizontal plane is represented as a total angle; and a control section which controls an optical axis adjustment of the vehicle lamp. The control section derives from the total angle a first and a second provisional vehicle posture angles based on a first and a second calculation method, respectively, corrects the first or second provisional vehicle posture angle so that a difference between the first and the second provisional vehicle posture angles becomes small, sets the corrected provisional vehicle posture angle to the vehicle posture angle, and outputs a control signal for instructing the optical axis adjustment of the vehicle lamp according to the vehicle posture angle.
摘要:
A vehicle lamp control apparatus is provided with: a receiving portion for receiving output values of an acceleration sensor; a control portion for deriving a variation in an inclination angle of a vehicle based on the output values of the acceleration sensor and generating a control signal for instructing an optical axis adjustment of a vehicle lamp; and a transmitting portion for transmitting the control signal to an optical axis adjusting portion of the vehicle lamp. The control portion is configured to detect an error factor of the output values occurring in the acceleration sensor based on the output values of the acceleration sensor and to correct an optical axis position of the vehicle lamp.
摘要:
A vehicle lamp control system includes a target irradiating direction setting unit which sets, in accordance with a running condition of a vehicle, a target irradiating direction of the lamp. An actuator controls an irradiating direction of the lamp to be directed in the target irradiating direction based on a reference direction. The actuator includes a reference setting section which executes a reference setting operation to set the irradiating direction of the lamp to be directed in the reference direction. The target irradiating direction setting unit includes a condition determining section which determines whether the reference setting section has executed the reference setting operation, and a reference setting command section which, when the condition determining section determines that the reference setting section has not yet executed the reference setting operation, instructs the reference setting section to execute the reference setting operation.
摘要:
The present invention has an object to overcome problems of a key recovery system using a conventional KRF system and to achieve efficient operation of the overall key recovery system. A key recovery system of the present invention includes check units 12a, 12b for checking whether a user has a recovery authorization for a common key KS, on the basis of a recovery condition RC specified by a recovery condition index RCI which is added to an encrypted message (encrypted message obtained by encrypting the common key KS with a public key KRCpub) supplied from a terminal (10a to 10d) of the user concerned, and a key recovery control unit 14 which is provided separately from the check units 12a, 12b and decrypts the encrypted message with a private key KRCpri paired with the public key KRCpub to recover the common key. The check unit 12a, 12b supplies the common key KS recovered in the key recovery control unit 14 to the user concerned only when the user has the recovery authorization.
摘要:
There is provided a control device for controlling a vehicle lamp. The device includes: a receiver configured to receive an output value from an inclination sensor; and a controller configured to control an optical axis of the vehicle lamp based on a vehicle attitude angle that is an inclination angle of the vehicle with respect to a road surface. The controller is configured to control the optical axis in a first optical axis control mode or a second optical axis mode, wherein an optical axis angle of the optical axis is adjusted in accordance with the vehicle attitude angle in the first optical axis mode, and the second optical axis control mode is different from the first optical axis control mode. The controller controls the optical axis in the second optical axis control mode, when the vehicle attitude angle is not included in a predetermined range.
摘要:
Techniques are disclosed for enhancing the accuracy of auto-leveling control to adjust the optical axis of a vehicle lamp using an acceleration sensor. A controller stores reference values of first and second angles, updates the reference value of the second angle by treating a change of a sum angle during a vehicle stop as a change of the second angle, and updates the reference value of the first angle by treating a change of the sum angle during vehicle traveling as a change of the first angle. The controller derives a difference between a value of the sum angle and a sum of the reference values of the first and second angles, and corrects at least one of the reference values so as to reduce the difference.
摘要:
A control apparatus for a vehicle lamp includes a receiver to receive an acceleration signal indicative of an acceleration detected by an acceleration sensor, and a controller to derive an inclination angle of a vehicle relative to a horizontal plane from the acceleration signal. While the vehicle is stopped and if a change in the acceleration exceeds a threshold, the controller outputs an adjustment signal indicative of an instruction to adjust an optical axis of the vehicle lamp in accordance with a difference in the inclination angle before and after the change in the acceleration.