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1. 发明专利

JPH02214921A FAULT DETECTOR FOR ANALOG MULTIPLEXER 失效
公开(公告)号：JPH02214921A
公开(公告)日：1990-08-27
申请号：JP3561689
申请日：1989-02-15
申请人： NIPPON SIGNAL CO LTD
发明人： INOUE KOJI
IPC分类号： G06F3/05 , B61L27/00
摘要： PURPOSE:To prevent such an inconvenient case where an arithmetic operation is carried out based on an erroneous input signal by superposing a reference signal on an input signal to detect a fault. CONSTITUTION:An analog selector 2 superposes successively the reference signals on the input signals (i) every prescribed time. The signals (i) superposed with the reference signals are alternatively selected by an analog multiplexer 10 and held by a sample-hold circuit 11. Then the selected signals (i) are converted into the digital signals by an A/D converter 12 and supplied to a microprocessor MPU 13. The MPU 13 decides that an input signal is not genuine in the case no reference signal is superposed on the input signal and a superposing signal is detected in addition to the relevant input data. Thus it is possible to decide the fault of the multiplexer 10 and to prevent such a case where the MPU 13 performs an arithmetic output based on the erroneous input signal.

2. 发明专利

JPS6388933A INFORMATION TRANSMITTER 失效
公开(公告)号：JPS6388933A
公开(公告)日：1988-04-20
申请号：JP23532486
申请日：1986-10-01
申请人： NIPPON SIGNAL CO LTD
发明人： ORIHARA KOICHI , KATO TOSHIO , INOUE KOJI
摘要： PURPOSE:To attain sure transmission even at a fault by providing a function to send its own data based on the transmission timing of a terminal equipment making communication finally to each of terminal equipment in a multi-drop system information transmission equipment. CONSTITUTION:In terminal equipments 30-3n, a reception section 3A has a function receiving all the terminal equipments while identifying the data sent from other terminal equipments. A transmission section timer setting section 3B based on each transmission timing of each terminal equipment, sets delay times to-tn deciding the timing sending its own data. For example, if one preceding terminal equipment of its own terminal equipment is failed, the terminal equipment receiving the data finally is the terminal equipment of two preceding, then the timer setting section 3B outputs the delay time t1 corresponding to the terminal equipment to the timer 3C. A transmission section 3D is started by the output of the timer 3C to sent its own data after a time t1 from the transmission timing of two preceding terminal equipments.

3. 发明专利

JPS61292768A BUS SYNCHRONIZING MULTIPLEX COMPUTER SYSTEM 失效
公开(公告)号：JPS61292768A
公开(公告)日：1986-12-23
申请号：JP13573385
申请日：1985-06-20
申请人： NIPPON SIGNAL CO LTD
发明人： INOUE KOJI
IPC分类号： G06F15/16 , G06F15/177
摘要： PURPOSE:To detect easily the trouble of a clock signal generating circuit by providing a clock signal generating circuit and a timer counter to each computer system. CONSTITUTION:A system A consists of a clock signal generating circuit 2, a timer counter 3 and a computer MPU1. While a system B is provided with a clock signal generating circuit 4 a timer counter 5 and a computer MPU2 respectively. The clock signal CL1 delivered from the circuit 2 is supplied in parallel to both computers MPU1 and MPU2. While the outputs of both counters 3 and 5 are also supplied in parallel to both computers MPU1 and MPU2 respectively. These computers MPU1 and MPU2 read the counter values Sa and Sb given from the counters 3 and 5 respectively. Then a deciding circuit 6 decides whether the error between the read values Ra and Rb is kept within an allowable range or not.

4. 发明专利

JPH0644706B2 失效
公开(公告)号：JPH0644706B2
公开(公告)日：1994-06-08
申请号：JP27731785
申请日：1985-12-10
申请人： NIPPON SIGNAL CO LTD
发明人： INOUE KOJI
IPC分类号： H03K19/007 , H03K17/00 , H03K17/62 , H03K17/66 , H03K19/00 , H03K19/003 , H03K19/20

5. 发明专利

JPH05307893A 失效
公开(公告)号：JPH05307893A
公开(公告)日：1993-11-19
申请号：JP13787292
申请日：1992-04-30
申请人： NIPPON SIGNAL CO LTD
发明人： INOUE KOJI
IPC分类号： G11C17/00
摘要： PURPOSE:To simplify application and to reduce an error due to a data entering fault by writing work data decided newly and peculiar data in a new data ROM. CONSTITUTION:The data ROM DR1 in which individual PD1 peculiar to a digital device EQ1 and common data CD common to each digital device EQ are written is collected from the device EQ1 and used. At this time, the ROM DR1 is set to a data ROM making device RW and a content is read and the individual data PD1 peculiar to the device EQ1 and the data CD common to the device EQ are obtained. Then a revision content, etc., is written newly based on these data and the new working data WD is decided. Then respectively all data of the data PD1, CD in addition to the data WD are written in the new DPROM and the data ROM DR'1 is made. Then, at a next writing time, the peculiar data is read from the collected PROM and by utilizing the data, application is simplified and a miss due to the data entering fault is reduced.

6. 发明专利

JPS6417537A DATA TRANSMISSION EQUIPMENT 失效
公开(公告)号：JPS6417537A
公开(公告)日：1989-01-20
申请号：JP17330087
申请日：1987-07-11
申请人： NIPPON SIGNAL CO LTD
发明人： HOSHINO TAKEHIKO , SAEGUSA HIDETAKA , KIMURA KUNIHIKO , SAITO YASUO , INOUE KOJI
IPC分类号： H04L13/08 , G06F11/16 , G06F15/16 , G06F15/167 , H04L13/00 , H04L29/14
摘要： PURPOSE:To detect the abnormality of each computer and a data transmission equipment and to improve the reliability of a system by executing data transmission between each master and slave by means of transmission means corresponding to the number of pairs of masters and slaves. CONSTITUTION:Respective CPUm 1A, 1B read out flag(FL) data from masters (M) SL32, 34 and the 1A compares FL data obtained from a slave(S) SL 32 with data obtained by inverting the FL data from an SSL 34, and when both the contents coincide with each other, the normality of the CPUs2A, 2B and SL32, 34 and the normality of the FL are decided. The CPUm 1B also operates similarly. The 1A and 1B check whether data can be received from the slave side or not, and when the data reception is available, the CPUm 1A, 1B read out data from buffer RAMs 35, 36 compare the read data with data obtained from the CPUs 2A, 2B, (after inversion) and when both the contents coincide with each other, the normality of the CPUs 2A, 2B and the data transmission equipment 3 and the normarity of data are decided. After reading, the data are written in RAMs 35, 36.

7. 发明专利

JPS62136921A AND OUTPUT CIRCUIT 失效
公开(公告)号：JPS62136921A
公开(公告)日：1987-06-19
申请号：JP27731785
申请日：1985-12-10
申请人： NIPPON SIGNAL CO LTD
发明人： INOUE KOJI
IPC分类号： H03K19/007 , H03K17/00 , H03K17/62 , H03K17/66 , H03K19/00 , H03K19/003 , H03K19/20
摘要： PURPOSE:To detect surely a circuit fault by connecting the 1st and 2nd circuits in parallel to which plural 3-terminal control elements are connected in series and detecting the direction of a current flowing between connection points by a current detection circuit. CONSTITUTION:The 2nd circuit 2 comprising series connection of two 3-terminal control elements Q2, Q3 is connected in parallel with the 1st circuit 1 comprising series connection of two 3-terminal control elements Q1, Q4. outputs a1, b1 are given to control input terminals B1, B3 of the 3-terminal control elements Q1, Q3 from an MPU1 of the system 1 and outputs a2, b2 of an MPU2 of the system 2 are given to control input terminals B2, B4 of the 3-terminal control elements Q2, Q4. A connection point A between the 3-terminal control elements Q1 and Q4 and a connection point B between the 3-terminal control elements Q3 and Q2 are connected by a connection line L and a current transformer CT is coupled to the connection line L. The connection line L and the current transformer CT constitute a current detection circuit.

8. 发明专利

JPS62116035A DATA TRANSMISSION SYSTEM FOR DUPLEX SYSTEM MICROPROCESSOR 失效
公开(公告)号：JPS62116035A
公开(公告)日：1987-05-27
申请号：JP25625085
申请日：1985-11-15
申请人： NIPPON SIGNAL CO LTD
发明人： INOUE KOJI
IPC分类号： H04L1/08 , H04L1/22
摘要： PURPOSE:To transmit the output of a duplex system microprocessor to a receiving side through a transmitter and transmission line constituted in a single- system constitution as independent data, by successively transmitting the output to the transmission line as positive and negative data. CONSTITUTION:A microprocessor 1 outputs the processed data to a P port as positive data (P data) without inverting the bit. Another microprocessor 2 outputs processed data to an N port as negative data (N data) by inverting the whole bits '1' and '0' of the processed data. The P and N data outputted from the microprocessors 1 and 2 are sent to a transmitter 4 and successively sent to a transmission line 5 in the order of P data and N data. Therefore, the fail safe property of the transmitted data can be secured by examining and discriminating both of the data sent through the transmission line 5 on the receiving side.

9. 发明专利

JPH02286466A ELECTRONIC BLOCK INSTRUMENT 失效
公开(公告)号：JPH02286466A
公开(公告)日：1990-11-26
申请号：JP10704989
申请日：1989-04-26
申请人： NIPPON SIGNAL CO LTD
发明人： INOUE KOJI
IPC分类号： B61L23/30
摘要： PURPOSE:To improve the extent of operating efficiency by installing an intermediate signal station, equipped with a controller with a function similar to that installed in each station, between two stations, and when a preceding train run past this intermediate signal station, making it so as to give such a command as starting a succeeding train. CONSTITUTION:In a device which sets an interval between two stations A and B connected by a single track down to one block section and thereby performs operational control over a train, when a trainman of a train (A) in stoppage at the A station pushes a start button, discrimination data of the train (A) are transmitted out of an antenna (b) from a mounted apparatus (a), giving these data to a controller 1A as a station unit. This controller 1A transmits its identification code to the B station via a transmission line 2. At the B station, when arrival of the train (A) with the said identification code is checked, blocking between these A and B stations is released. In this case, an intermediate signal station C is further set up in an intermediate position between these stations A and B, and when passage of the train (A) is detected hereat, such a command as starting a succeeding train at the A station is made so as to be given.

10. 发明专利

JPH02267069A OBSTRUCTION DETECTION DEVICE FOR RAILROAD CROSSING 失效
公开(公告)号：JPH02267069A
公开(公告)日：1990-10-31
申请号：JP8823789
申请日：1989-04-08
申请人： NIPPON SIGNAL CO LTD
发明人： ORIHARA KOICHI , ARAI KENICHI , INOUE KOJI
IPC分类号： B61L29/00
摘要： PURPOSE:To detect failures and the like in an optical system without being affected by vehicles, mans and the like that cross the railroad crossing by judging the output of a receptor with the light emission quantity of illuminants controlled during the period of time till a train arrives at the railroad crossing since information that the train came in, is inputted. CONSTITUTION:During the period of time till a train arrives at the railroad crossing 3 after information that the train comes in, is inputted, a crossing gate is lowered at the railroad crossing equipped with a railroad crossing fault detecting device so that traffic is interrupted. During the period of the time, abnormality in the railroad crossing fault detecting device is therefore detected without being affected by traffic crossing the railroad crossing. In this case, abnormality is detected by a control circuit 6 with the light emission quantity of illuminants 41 through 43 controlled. The control of light emission quantity is composed of two modes, that is, suspension of light emission and attenuation in light emisemission quantity. In case of suspension of light emission, abnormal failures are detected as if there were the output of the receptor inspite of no illuminants 41 through 43 operated. In case of attenuation in light emission quantity, degradation in the performance of the illuminants and the receptor is detected, and degradation in margin due to contamination in an optical system starting from the illuminants to the receptor and the like are also detected.

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