摘要:
Fire detection signals are produced with high reliability based upon a quantity smaller than a predetermined quantity from a fire sensing system which detects predetermined standard quantities of combustion products (or physical quantities) such as heat, smoke or light produced by a fire. The system includes a fire sensor connected in parallel with a first semiconductor switching element and a second semiconductor switching element contained in two independent power-supply circuits. The first power-supply circuit contains the first semiconductor switching element which detects a combustion quantity smaller than the standard quantities and which is rendered conductive upon receipt of an early output produced by the fire sensor. The first power supply circuit is connected in parallel with a second power-supply circuit containing the second semi-conductor switching element which detects the standard quantities and which is rendered conductive upon receipt of an alarm output produced by the fire sensor. A substantial delay time based upon a statistical time difference expected to exist from an early output corresponding to the initial stage of the occurrence of fire to the production of an alarm output corresponding to the decision that a fire exists is provided between the operations of the first semiconductor switching element and the second semiconductor switching element. Noise energy induced in the system is absorbed by the first semi-conductor switching element rendered conductive after the substantial delay time has passed, such that the second power-supply circuit including the second semiconductor switching element is maintained in a proper condition to control the production of the fire alarm.
摘要:
In an ion type smoke sensor including a smoke sensor having an internal electrode, an intermediate electrode and an external electrode, and a field effect transistor having a control input terminal connected to the intermediate electrode, a first output terminal connected to the internal electrode and a second output terminal connected to the external electrode, an ion type smoke sensor of this invention comprises an oscillator circuit for generating an oscillating output having a predetermined oscillating frequency; a reference level source for intermittently producing an output signal with a predetermined reference level in response to the oscillating output from the oscillator circuit; and a comparing circuit for comparing a sensing output between the first and second output terminals of the field effect transistor with the reference level from the reference level source to produce a fire sensing signal in accordance with the result of the comparison. According to this invention, an erroneous alarm issuance is minimized as a result of a stable intermittent sensing operation. An operating point for determining the sensitivity of the sensor can be set easily and precisely.
摘要:
A vehicle motion control apparatus configured to control a plurality of control objects in a same direction of vehicle motion control to achieve a requested control amount is provided. The vehicle motion control apparatus includes a control object selection unit which is configured to determine priority of the control objects used for the vehicle motion control based on a priority determination condition, to select a control object from among the plurality of control objects. The control object selection unit includes a control object selection timing determination section configured to detect a change in the priority determination condition, and cause the control object selection unit to reselect a control object at a timing of the change detection as a selection timing.
摘要:
Disclosed herein is a zoom lens including a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having positive refractive power, and a fifth lens group having negative refractive power. The respective lens groups move in magnification variation from a wide angle end to a telephoto end. The fourth lens group is moved in optical axis direction to correct variation of an imaging position in association with magnification variation and perform correction of the imaging position in association with object distance change. Condition expression (1) is satisfied. 0.60
摘要:
A lateral motion control apparatus for a vehicle includes a control stop determination unit that determines whether or not to stop the control for the control target by the control target control unit based on a steering operation amount inputted by a driver of the vehicle, and a degeneration control amount determination unit that determines a degeneration control amount for the control target such that the control amount for the control target degenerates after the time when the control stop determination unit has determined that the control for the control target is to be stopped. When the control stop determination unit has determined that the control for the control target is to be stopped, the control target control unit controls the control target based on the degeneration control amount determined by the degeneration control amount determination unit.
摘要:
Factor information is acquired that indicates at least one factor that imposes a psychological effect on a driver of a host vehicle when the host vehicle is traveling on a road with a descending slope ahead of the host vehicle. An overall psychological effect that is imposed on the driver when the host vehicle is traveling on the road with the descending slope is acquired based on the factor information. The vehicle speed is controlled in a vehicle speed control section in accordance with the overall psychological effect.
摘要:
In a vehicle dynamic control platform arranged between a controlled object and an application, an availability obtainer obtains an availability corresponding to a controllable range of a second parameter of the controlled object, and outputs the availability of the second parameter of the controlled object to the application. The application is programmed to output the target value of the first parameter based on the availability of the second parameter of the controlled object. A comparator compares the target value of the first parameter with the availability of the second parameter when the target value of the first parameter is outputted from the application, and determines, based on a result of the comparison, whether to perform dynamic control of the vehicle by controlling the controlled object.
摘要:
Bakery products such as bread obtained by adding the functions of fructo-oligosaccharide so as not to impair tastes and eating feeling. By eating such bakery products, the functions of fructo-oligosaccharide reveal. A bakery product such as croissant and panettone containing fructo-oligosaccharide is obtained by fermenting a mixture of fructo-oligosaccharide and flour as a major ingredient with a madre containing Saccharomyces exiguus, Lactobacillus sanfrancisco and Lactobacillus comoensis, and baking the dough thus obtained.
摘要:
An analog fire detecting system in which a plurality of sensors produce analog data corresponding to a physical state such as temperature, smoke density, etc. relevant to a fire condition. The values of such analog data are compared with a predetermined threshold level, and if the threshold level is exceeded the analog data is transmitted to a central station in response to a polling signal therefrom. A CPU in the central station determines, from the analog data from the sensors, if there is a possibility of a fire and if so makes a predictive calculation of the remaining time until a fire condition will be reached. An alarm is given when such predicted time falls below a preset interval.
摘要:
A fire detecting system which is capable of successively controlling the forecasting of a fire, setting off alarms and activating fire-extinguishing equipment. The system includes a detector adapted to produce an electric impedance corresponding to an amount of a fire generated object present, such as smoke density, light or heat. An amplifier element has a controlling electrode connected to the detector so as to amplify the change in the electric impedance transmitted by the detector. A voltage-differential actuated element is connected at its one input terminal to the connection terminal of the amplifier element. To the reference input terminal of this voltage-differential actuated element, connected is a reference operation voltage changing means which is controlled by a time constant circuit which is adapted to determine the duration or time length of the output from the voltage-differential actuated element. By so arranging the circuit, a discontinuous or continuous output is produced by the voltage-differential actuated element which is, materially under the control of the reference operation voltage changing means. Therefore, the pattern of the output from the voltage-differential actuated element obtained in accordance with the potentials changed by the reference operation voltage changing means and corresponding to the predetermined amounts of the detected object, provides the information concerning a fire around the detector. The multi-stage information from the detector is used for conducting the control of successive operations of the equipment or functions disposed around the detector such as, for example, the forecasting of a fire, setting off an alarm and activating fire-extinguishing equipments.