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    • 21. 发明专利
    • MONITOR DEVICE
    • JPH01138901A
    • 1989-05-31
    • JP29516487
    • 1987-11-25
    • HITACHI LTD
    • SEKINO SHINICHITAKAOKA TADASHI
    • B60L3/00
    • PURPOSE:To facilitate the analysis after generation of an abnormal state, by providing on the side of a monitor with a model working means, and by comparing an estimated working result with the model working means, with an actual equipment working, to monitor the state of a monitored object equipment. CONSTITUTION:By an ATO(automatic train operating) apparatus 2, the input signals 41-4n of the various conditions of a car body, signal conditions, and the like are received, and various condition discriminating and operational processing are performed, and the output of output signals 51-5m is generated. By the ATO model 22 of a monitor 1, the working of the ATO apparatus 2 of a monitored object is expressed in relation to input and output signals, and coping with input signals 41'-4n', the output of output signals 51''-5m'' is generated. By an abnormal state detecting processor 23, the output signals 51''-5m'' are compared with output signals 51'-5m' obtained from the actual ATO apparatus 2, and the output of abnormal state detecting signal 26 is generated. By an abnormal state time data recording processor 24, the abnormal state detecting signal is received, and relative informations are recorded.
    • 22. 发明专利
    • AUTOMATIC TRAIN DRIVING DEVICE
    • JPS63224609A
    • 1988-09-19
    • JP5676687
    • 1987-03-13
    • HITACHI LTD
    • SEKINO SHINICHIAKIYAMA HIROYUKI
    • B60L15/40
    • PURPOSE:To improve the controllability of the automatic operation of a train by varying the parameter of an evaluation function in response to train speed and control command information. CONSTITUTION:An arithmetic section 1 selects and determines a control command by using an evaluation function on the basis of limiting speed information from an ATC 6, distance pulses from a tachometer generator 3, distance information from a stop point from a spot detector 3, etc., and transmits the control command over a power running-brake controller 5. An evaluation function evaluating the control command is used as an evaluation function having a parameter set by control command information output at that time and the speed of a train in this case. Accordingly, when the control command is changed, the predictor of a stoppage error by a novel control command can be brought to zero, thus improving the controllability of the automatic operation of the train.
    • 25. 发明专利
    • TRAIN INFORMATION INDICATOR
    • JPH0717405A
    • 1995-01-20
    • JP16804193
    • 1993-07-07
    • HITACHI LTD
    • ISHIDA KEIJISEKINO SHINICHI
    • B60L3/00B61L25/02
    • PURPOSE:To enable efficient tests, by having various test informations indicated on respective indicators when a test mode is set by a mode setter in an indicator provided with an external indicator for destination of the like and internal indicators like destination, next station, and traveling distance. CONSTITUTION:External indicators 2 (2a-2c) of each vehicle or a train and an internal indicators 3 (3a-3c) are connected to an indication controller 4 through an information transmission line 5 so as to display the destination and the like of a train on the external indicator 2 and also display in turn the destination, next station, traveling speed, traveling distance, etc., on the internal indicators 3. A mode setter 6 capable of selectively setting a commercial operation mode, a test operation mode, and an inspection mode in the car shed is connected to the indication controller 4. When the test operation mode is set, information showing defective states in respective parts are indicated successively on the external indicator 2 and the indicating items of traveling speed, traveling distance and the information showing the defective states of respective parts are displayed successively on the internal indicators 3.
    • 26. 发明专利
    • TRANSMISSION EQUIPMENT
    • JPH0583264A
    • 1993-04-02
    • JP23929191
    • 1991-09-19
    • HITACHI LTD
    • SEKINO SHINICHIYAMADA KAZUHIRO
    • B60L3/00B60L15/42H04L12/40
    • PURPOSE:To secure high reliability, while decreasing the number of additional line to the utmost by transmitting a data signal by superposing it on a DC voltage signal, and setting it as a command signal of a safety side by disconnecting a DC component. CONSTITUTION:Transmission and reception of data between plural transmission terminals 1, 2 and 3 are executed by a high frequency pulse superposed onto a DC voltage V1 by transmission lines 4, 5. Accordingly, even if the DC applied voltage V1 of the transmission lines 4, 5 is disconnected, unless the transmission lines 4, 5 are disconnected, an AC waveform is transmitted, and a data transmission can be executed. Accordingly, by turning on and off an output voltage of a power source 6, turn-on/turn-off signals can be transferred separately from the above data by using the same transmission lines 4, 5. Relays provided in the terminals 1, 2 and 3 are controlled by whether this DC voltage V1 exists or not. In such a way, other signal than the data transmission can be sent without increasing the number of electric wires.
    • 28. 发明专利
    • CONTROL EQUIPMENT
    • JPH02223302A
    • 1990-09-05
    • JP25193189
    • 1989-09-29
    • HITACHI LTD
    • TASHIRO FUSASHITOYODA EIICHISEKINO SHINICHI
    • B60L3/08B60L15/40
    • PURPOSE:To guarantee a fail-safe operation by outputting a brake command signal, when a train speed exceeds a limiting speed, by periodically checking whether an information through the output of a comparing means and speed information generating means is correct or not, and by outputting a brake signal also when the same check signal is outputted continuously. CONSTITUTION:A signal as to whether a train speed deviates from a speed zone or not is outputted from speed comparing slots C1, C2. A signal as to whether the train speed exceeds a limiting speed or not is outputted from a speed comparing slot C3. A signal as to whether a tachometer generator 38 is out of order or not is outputted from a speed comparing slot C4. These signals are transmitted to a comparison results summarizing part 46. From a fault detection slot C5, an alternating signal, of which check results are alternately correct or incorrect, is generated normally and a high-level or low-level DC signal is continuously outputted at an abnormal time. When said output signal is inputted to an output gate 48, a brake command signal 106 is outputted to a braking part 36 and a braking force is given to a train.
    • 30. 发明专利
    • AUTOMATIC TRAIN OPERATING METHOD
    • JPS61214705A
    • 1986-09-24
    • JP5453485
    • 1985-03-20
    • HITACHI LTD
    • SEKINO SHINICHI
    • B60L15/20B60L15/40
    • PURPOSE:To suppress the alteration of unnecessary control command by eliminating the alteration of the control command until the control command capable of obtaining the prescribed accuracy is selected. CONSTITUTION:A calculator obtains stopping errors LZ, LP, LN corresponding to the cases that the present notch, brake are increased or decreased by 1 notch from the remaining distance L1 to the previously obtained stopping target ground point 0, the present speed V, a deceleration beta and the deceleration DELTAbetaper one notch of the brake. If an error L2 is within the predetermined maximum allowable stopping error LM, only when any of the errors LP or LN falls within the range of a target stopping error Lm, a brake notch is increased or decreased, and if not, the present notch is held. If the error LZ exceeds the error LM, the minimum of the errors LZ, LP, LN is obtained to select the corresponding brake notch.