Abstract: An unmanned vehicle management system includes: an inter-vehicle distance determination unit that determines an inter-vehicle distance between a sprinkling vehicle and an unmanned vehicle traveling behind the sprinkling vehicle in a same direction as that of the sprinkling vehicle based on a sprinkling state from a sprinkling spray provided in the sprinkling vehicle traveling in a work site; and an output unit that outputs, to the unmanned vehicle, inter-vehicle distance data indicating the inter-vehicle distance determined by the inter-vehicle distance determination unit.

Abstract: An unmanned vehicle management system includes: a protection area setting unit that sets a protection area where entry of an unmanned vehicle traveling around a sprinkler vehicle is prohibited on the basis of a sprinkling state of a sprinkle spray provided in the sprinkler vehicle moving at a work site; and an output unit that outputs the protection area set by the protection area setting unit.

Abstract: A management system for a transport vehicle includes a storage unit that stores a traveling path outline indicating an outline of a traveling path at a work site and an intersection outline indicating an outline of an intersection at the work site, a designation unit that designates a start point of traveling of the transport vehicle at the work site and an end point of traveling of the transport vehicle, and a connection unit that generates a traveling area outline by connecting the traveling path outline and the intersection outline on the basis of the start point and the end point designated by the designation unit.

Abstract: According to an embodiment, an encoder system includes an encoder and an interface. The encoder detects the position and speed of a motor, and generates A-, B- and Z-phase signals. The interface includes an AB waveform recognition circuitry to recognize a waveform of an AB phase, a Z waveform recognition circuitry to recognize a period of an enable state of a Z phase, a starting point storage device to store a value of the AB phase when the Z phase changes and stores an AB-phase change pattern, a starting point recognition circuitry to generate an interrupt signal, and a rotation angle counter to start a new count of the rotation angle of the motor.

Abstract: According to an embodiment, an encoder system includes an encoder and an interface. The encoder detects the position and speed of a motor, and generates A-, B- and Z-phase signals. The interface includes an AB waveform recognition circuitry to recognize a waveform of an AB phase, a Z waveform recognition circuitry to recognize a period of an enable state of a Z phase, a starting point storage device to store a value of the AB phase when the Z phase changes and stores an AB-phase change pattern, a starting point recognition circuitry to generate an interrupt signal, and a rotation angle counter to start a new count of the rotation angle of the motor.

Abstract: An anti-theft device for an automobile audio system automatically prevents the audio system from functioning whenever the audio system is removed from its authorized vehicle and placed into another vehicle. This anti-theft device includes a microprocessor which operates with a bus interface for communicating a vehicle identifier from a vehicle multiplex bus to the central microprocessor. The device also has non-volatile memory within which the first received or authorized vehicle identifier is stored. The subsequently received identifiers are stored on RAM. A battery detector connected to the microprocessor alerts the microprocessor whenever the audio system has been disconnected from the battery source.

Abstract: A device for protecting audio equipment adapted to be installed in an automobile against theft includes a code storage section for previously storing a specific code in a memory, a code entry section for entering a code when the audio equipment is to be operated, a comparator circuit for comparing the code entered from the code entry section with the code read from the memory, and a muting circuit that usually mutes the electrical signal which would otherwise be applied to the power amplifier of the audio equipment. Unless the specific code is entered from the code entry section, the audio equipment is made inoperative by the electronic lock.