摘要:
The invention relates to a device in which surroundings of a building (4) can be monitored using a sensor; when detecting an intruder, an object (7) can be detected even in the case of bad weather; and a predetermined area can be monitored using as few sensors as possible. The device includes a security system which emits a radio wave from a building (4) to a predetermined area outside the building (4) to detect an object (7), and on the basis of output of the object detecting unit (2), a judgment is made as to whether or not the object will intrude into the predetermined area.
摘要:
An automobile running control system having "Fast follow-up" (204) and "Slow follow-up" modes (205) controls so that the automobile (400) may cruise at an optimum car-to-car space between the automobile (400) and an object which is selected among those detected and faster than a preset ground velocity in the "Fast follow-up" mode (204). When the fast follow-up velocity of the automobile (400) falls under the preset velocity, the system automatically enters the "Slow follow-up" mode (205).
摘要:
In a vehicle running control apparatus and method, the change of a difference in frequency between an electromagnetic wave signal transmitted from a vehicle (A) and an electromagnetic wave signal reflected from an object (B) is detected (301). Information inclusive of a distance (D m ) between the object and the vehicle and a relative speed (V r ) of one of the object and the vehicle to the other is generated (205, 210) on the basis of the change in frequency difference. A desired speed (V d , ΔV d ) is generated (405, 503) on the basis of the generated information and information (V o ) of the running of the vehicle so that the change in frequency difference is generated. A signal for control of the speed (V o ) of the vehicle is generated (209) on the basis of the desired speed.
摘要:
The distance to a target object is measured by capturing the image developed in front of the driving vehicle by the image sensor, extracting the target object such as a vehicle running forward to which the distance is to be measured, and exposing a laser beam to the target object. The distance to the target object is measured by angular surveying, using an image sensor for capturing an image as a laser light detection part.
摘要:
The distance to a target object is measured by capturing the image developed in front of the driving vehicle by the image sensor, extracting the target object such as a vehicle running forward to which the distance is to be measured, and exposing a laser beam to the target object. The distance to the target object is measured by angular surveying, using an image sensor for capturing an image as a laser light detection part.
摘要:
A distance measuring apparatus comprising a transmission antenna (10) to radiate a transmission radio wave; a reception antenna (11) to receive a reflected signal from a target; an analog-to-digital converter (14) to perform an analog-to-digital conversion for converting a reception signal; and a signal processing unit (1) to process the converted signal and to detect the target, in which a transmission frequency of the transmission radio wave to be radiated is switched at a timing synchronized with a sampling frequency of the analog-to-digital conversion, the transmission frequency is switched in accordance with an arbitrary pattern within a frequency band, and the reception signal is rearranged in order on the basis of the arbitrary pattern at a time of the transmission to then be subject to a radar signal processing.