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22. 发明专利

JPS5875931A CALLING METHOD 失效
公开(公告)号：JPS5875931A
公开(公告)日：1983-05-07
申请号：JP17498281
申请日：1981-10-30
申请人： HITACHI SHIPBUILDING ENG CO
发明人： NODOKO TANEYASU
IPC分类号： H04B1/66 , G10L11/00 , G10L13/00 , G10L15/00 , H04J3/16
摘要： PURPOSE:To increase the degree of utilization of a transmission line by using a voice recognizing device and a voice synthesizer. CONSTITUTION:A voice signal from a microphone 1 is applied to a voice recognizing device 5, which recognizes respective elements of the voice signal such as syllables and clauses. Those recognized elements are applied to a transmission-side interface 6, where they are encoded into an information signal. This information signal is transmitted through a transmitter 7. The information signal received by a receiver 8 is applied to a reception-side interface 9, which converts the information signal into the corresponding elements. Those converted elements are applied to a voice synthesizer 10 to synthesize a voice, which is applied to a speaker 4. Consequently, the entire band of a transmission line is not used for the transmission of the voice signal, so plural communication systems are multiplexed through the transmission line with the same capacity, increasing the degree of utilization of the transmission line.

26. 发明专利

JPS58174092A ELECTRIC PROPULSION DEVICE 失效
公开(公告)号：JPS58174092A
公开(公告)日：1983-10-13
申请号：JP5700482
申请日：1982-04-05
申请人： HITACHI SHIPBUILDING ENG CO
发明人： ARAKAWA KOUICHI , NODOKO TANEYASU
IPC分类号： H02P5/60 , B63H23/24
摘要： PURPOSE:To contrive to enhance high-speed and low-speed characteristics of an electric propulsion device, by a method wherein an AC motor and a DC motor are connected to the same shaft, and a propeller is driven by the motors. CONSTITUTION:In a high-torque operation such as in the case of an increase in the resistance on a ship's hull, a switch 7 is closed, a portion of the electric power obtained by an AC generator 2 is supplied directly to the AC motor 3, while the remainder is rectified by a rectifier 6, and the resultant DC power is supplied to the DC motor 4. Accordingly, in a high-speed low-torque operation, a high-speed low-torque characteristic of the AC motor 3 is obtained, and in a low-speed high-torque operation, both of the motors 3, 4 are driven to utilize the characteristic of the DC motor 4, thereby obtaining a high torque. As a result, preformance can be greatly enhanced.

27. 发明专利

JPS58174091A ELECTRIC PROPULSION DEVICE 失效
公开(公告)号：JPS58174091A
公开(公告)日：1983-10-13
申请号：JP5700382
申请日：1982-04-05
申请人： HITACHI SHIPBUILDING ENG CO
发明人： ARAKAWA KOUICHI , NODOKO TANEYASU
IPC分类号： H02P5/74 , B63H23/24
摘要： PURPOSE:To enable a plurality of controlling circuits to be combinedly used for each of AC motors, by a method wherein a controlling circuit provided with a semiconductor output controller is provided between AC generators and AC motors. CONSTITUTION:In a low-torque operation, shortcircuit switches 8, 8' are opened, change-over switches 10, 10' are changed over to the shortcircuit side, and ON- OFF switches 11, 11' are opened, whereby the electric power obtained by the AC generator 2 and that obtained by the AC generator 2' are entirely supplied to the AC motors 3, 3', respectively, so that a stable high-speed low-torque characteristic is obtained. In a high-torque operation such as in the case of an increase in the resistance on a ship's hull, the shortcircuit switches 8, 8' are opened, the change-over switches 10, 10' are changed over respectively to the sides of AC motors 4, 4', and the ON-OFF switches 11, 11' are opened, whereby a portion of the electric power supplied from the generators 2, 2' is supplied directly to the motors 3, 3', while the remainder is supplied to the AC motors 4, 4' through thyristor devices 5, 5', so that a high torque is obtained.

28. 发明专利

JPS57164308A NAVIGATION METHOD FOR FLEET OF VESSELS 失效
公开(公告)号：JPS57164308A
公开(公告)日：1982-10-08
申请号：JP4873581
申请日：1981-03-31
申请人： HITACHI SHIPBUILDING ENG CO
发明人： HASHIGUCHI SHINJI , NODOKO TANEYASU
IPC分类号： G05D1/00
摘要： PURPOSE:To achieve economical and safe navigation for a fleet of vessels, by forming the fleet with an attended other vessel and a plurality of unattended daughter vessels, navigating the unattended daughter vessels with a position signal from the motor vessel and making an urgent refuge navigation on emergency. CONSTITUTION:A fleet of vessels consists of one attended mother vessel 1 and a plurality of unattended daughter vessels 5. The motor vessel gives a passing point information to the daoughter vessels. The information controls the steering and engine of the daughter vessels. The daughter vessels monitor their surrounding by means of radars and the like. If any obstacle such as other ships comes to a preset range, navigation is made so that the danger can automatically be solved. Measuring information and an emergency signal from the radars of the daughter vessels are transmitted to the mother vessel, which grasps the navigation of a fleet of vessels at all times.

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