摘要:
A symmetric type loop communication system having no master station, in which a plurality of control stations connected to a loop communication path each have a timer with its set time different from each other control station. The timer of a station is reset when a transmission right signal (GA signal) from another control station is received. On the other hand, a GA signal is sent out to another control station together with a message frame when the timer thereof has counted to a predetermined state.
摘要:
In a plant control system, a transmission channel includes loop transmission lines arranged in duplex. Equivalently connected to this transmission channel are a plurality of one-loop controller stations, a backup station backing up a disabled one of the plural controller stations and a display station for displaying the status of the controller stations and the backup station. Each of the controller stations, backup station and display station includes a built-in microcomputer. Each of these stations includes also a transmission interface circuit and a self-diagnostic circuit. The transmission interface circuit in each station selects one of the transmission lines for data transmission between its own station and the others. The self-diagnostic circuit in each station detects the presence of failure of normal operation of its own station and disconnects the disabled station from the transmission line, so that the other stations may not be adversely affected by the disabled station.
摘要:
A road traffic control method is provided which can continue to maximize the number of vehicles allowed to run on a road and shorten time required for a vehicle to reach a destination, by preventing and relieving congestion. The method controls traffic of vehicles running on each of a plurality of parallel running roads. Each road is made connected at an interval of a predetermined distance, and at least one of the plurality of roads has a plurality of lanes. The method includes the steps of: detecting traffic of vehicles running in two counter directions on each road, at a position before at least one connected point of each of the plurality of roads; and changing ratio between the numbers of lanes of at least one of the plurality of roads, in accordance with the detected traffic of vehicles running in the two counter directions.
摘要:
An automatic design system of a logic circuit system includes a storage for storing information about structures and functions of known basic circuits available for a circuit system to be designed, an input device for receiving design specification information about the structures and functions of the circuit to be designed, and a synthesize section for combining the known basic circuits stored in the storage so as to synthesize the desired logic circuit satisfying the design specification information.
摘要:
A decoding type select logic generating method includes the steps of listing on a group basis input signal names and output destination signal names contained in register transfer descriptions and control codes for commanding execution of the register transfers for each of the same input signal names and same output destination signal names, simplifying logics by replacing the control code having the hamming distance of one by a bit meaning "don't care" on the group basis, generating AND gates for the control codes and the input signal names in each of the groups having the same input signal name and combining the outputs of the AND gates, generating AND gates for the control codes in each group having the same output destination signal name and combining the outputs of the AND gates for each of the output destination signal names, and combining the outputs of the groups each having the same input signal name and the groups each having the same output destination signal name.
摘要:
A method of storing articles in a warehouse having a plurality of storage blocks arranged adjacent each other with each of the storage blocks having a plurality of spaced racks for storing articles and linearly extending aisles between the racks. The warehouse also includes article transfer apparatus arranged for movement in respective aisles to transfer articles relative to a given location within a respective storage block and a control arrangement for operating the article transfer apparatus in accordance with a predetermined mode to transfer articles relative to said storage blocks. The method of storing includes the steps of storing a plurality of different articles in the storage blocks with at least two different articles in each storage block, storing in a first storage block at least one and another different articles, storing in a second storage block at least one article common to the one different article in the first storage block and at least one additional different article, storing in a third and any succeeding storage block at least one article common to the at least one additional different article of the immediately preceding storage block and at least one further different article, and storing in the last storage block as the at least one further different article an article common to the another different article of the first storage block to form an imaginary loop of articles in the warehouse.
摘要:
A traffic control system having a road information storing unit for storing information of a road map and the capacity of roads on the road map, a traffic measuring unit for measuring the traffic of roads, a traffic increase/decrease quantity calculating unit for calculating a traffic increase/decrease quantity between main points by using the measured traffic, a road traffic calculating unit for calculating traffic of a main road, by using the traffic increase/decrease quantity, and an area determining unit for determining an area which is the area for congestions less traffic by using the calculated traffic and the road capacity while maintaining the traffic increase/decrease quantity at a proper value. It is possible to control the traffic while considering nearby traffic conditions, to prevent and relieve congestion, and to maximize the traffic of roads, thereby minimizing the time required for reaching a destination.
摘要:
This invention relates to a method an apparatus for measuring traffic flows or in other words, the flows of vehicles, inside and near a crossing, and is directed to provide method and apparatus capable of extracting vehicles with a high level of accuracy.Overlap of vehicles can be avoided by setting the field of a camera not to a range from the inflow portion to the vicinity of center of the crossing, but to a range from the center to the vicinity of the outflow portion (151) of the crossing. Accordingly, accuracy of traffic flow measurement can be improved.
摘要:
A graphic processor comprises an input device for inputting a command from an operator, a display device for displaying graphic data and a computer for preparing and correcting graphic data by a command input from the operator and for making display control of the display device. When the operator wants to know the content of the command that is executed, he instructs the command to the computer. A command name, a processing content and a figure as an object of processing are calculated from history data instructed from the computer. The figure as the object of processing, the command processing content and the relation of correspondence are symbolized and displayed on the display device. Furthermore, a parametric figure is also displayed visually on the display device.
摘要:
An apparatus and method for processing information of a drawing comprises steps of defining figure data representing figures, respectively, included in a drawing, preparing a plurality of regions called as field block memory regions for storing the figure data so that they can be selectively read out for edition of a drawing later on, and determining a usable range in each of the field block memories in accordance with the number of the figures included in the drawing. In a preferred mode, the method further includes steps of dividing the drawing into congruent rectangles called as buckets in a number determined in accordance with the number of the figures included in the drawing, allocating the abovementioned field block memory regions to the buckets, respectively, and storing the figure data in the memory region allocated to the bucket to which the associated figure belongs.