Communication control apparatus
First Claim
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1. A communication control apparatus comprising:
- a central processing unit for processing load control based on inputted data;
an input/output unit for generating signals wherein an input side of said input/output unit is connected to a plurality of sensors and an output side of said input/output unit is connected to at least one load;
input/output lines for connecting said input/output unit and said central processing unit to each other for inputting data thereto, said input/output lines include at least one digital data transmission line and an analog data transmission line;
an A/D conversion means operatively employed in said central processing unit for converting analog signals from said input/output unit to digital signals;
a bus controller employed in the input/output unit and a bus controller employed in the central processing unit operatively connected to each other by said at least one digital data transmission line, said bus controllers transmitting specific data indicating a sensor type of analog data through said at least one digital data transmission line when transmitting said analog data; and
a control means operatively connected to said central processing unit for storing received analog data by associating said analog data with a sensor type of said analog data, wherein said control means includes said A/D conversion means connected to said analog data transmission line;
a register for storing digital data resulting from conversion by said A/D conversion means; and
a processing means for processing digital data read out from said register, wherein said A/D conversion means is used for sequentially converting input analog signals coming from a plurality of ports one signal after another into digital data; and
upon activation of one of said internal switches in accordance with a request issued by said central processing unit, said input/output unit transmits a signal for permitting said processing means to read out data from said register after a time it takes for a voltage of an input signal to sufficiently rise as an analog signal and a time it takes for said A/D conversion means to convert input analog signals from each of said ports into digital data have lapsed.
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Abstract
A communication control apparatus for enabling an A/D converter to be shared among a plurality of input units to eliminate the work for newly installing an A/D converter for a new sensor when the sensor is added. A communication control apparatus is provided which includes input/output lines for connecting an input/output unit and a central control unit to each other and used for transmitting data, the central control unit is provided with an analog to digital converter and is used for carrying out processing of load control based on input data coming from the input/output lines, and the input/output unit. An input side of the input/output unit is connected to sensors and an external switch whereas an output side of the input/output unit is connected to a load such as a motor. The communication control apparatus wherein the input/output lines include transmission lines B1 and B2 for transmission of digital data and a transmission line A1 for transmission of analog data, and the input/output unit transmits specific data indicating a channel of analog data through the transmission line B1 when transmitting the analog data.
15 Citations
15 Claims
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1. A communication control apparatus comprising:
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a central processing unit for processing load control based on inputted data;
an input/output unit for generating signals wherein an input side of said input/output unit is connected to a plurality of sensors and an output side of said input/output unit is connected to at least one load;
input/output lines for connecting said input/output unit and said central processing unit to each other for inputting data thereto, said input/output lines include at least one digital data transmission line and an analog data transmission line;
an A/D conversion means operatively employed in said central processing unit for converting analog signals from said input/output unit to digital signals;
a bus controller employed in the input/output unit and a bus controller employed in the central processing unit operatively connected to each other by said at least one digital data transmission line, said bus controllers transmitting specific data indicating a sensor type of analog data through said at least one digital data transmission line when transmitting said analog data; and
a control means operatively connected to said central processing unit for storing received analog data by associating said analog data with a sensor type of said analog data, wherein said control means includes said A/D conversion means connected to said analog data transmission line;
a register for storing digital data resulting from conversion by said A/D conversion means; and
a processing means for processing digital data read out from said register, wherein said A/D conversion means is used for sequentially converting input analog signals coming from a plurality of ports one signal after another into digital data; and
upon activation of one of said internal switches in accordance with a request issued by said central processing unit, said input/output unit transmits a signal for permitting said processing means to read out data from said register after a time it takes for a voltage of an input signal to sufficiently rise as an analog signal and a time it takes for said A/D conversion means to convert input analog signals from each of said ports into digital data have lapsed.- View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A communication control apparatus comprising:
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a central processing unit processing load control based on inputted data;
an input/output unit generating signals wherein an input side of said input/output unit is connected to a plurality of sensors and an output side of said input/output unit is connected to at least one load;
input/output lines for connecting said input/output unit and said central processing unit to each other for inputting data thereto, said input/output lines include at least one digital data transmission line and an analog data transmission line;
an A/D converter operatively connected to said central processing unit to convert analog signals from said input/output unit to digital signals;
a bus controller operatively connected to said input/output unit to transmit specific data indicating a sensor type of analog data through said at least one digital data transmission line when transmitting said analog data; and
a controller operatively connected to said central processing unit for storing received analog data by associating said analog data with a sensor type of said analog data. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification
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Current AssigneeHonda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
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Original AssigneeHonda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
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InventorsSato, Morio, Ohuchi, Katsuhiro
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Primary Examiner(s)Horabik, Michael
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Assistant Examiner(s)BANGACHON, WILLIAM L
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Application NumberUS09/108,306Time in Patent Office1,266 DaysField of Search340/825.06, 340/825.07, 340/825.08, 340/825.22, 370/223, 370/224, 370/294, 370/282, 341/141, 341/155, 375/259, 375/220, 375/354, 700/9, 700/21, 702/84US Class Current340/3.22CPC Class CodesG05B 15/02 electricG05B 19/0423 Input/outputG05B 2219/25127 Bus for analog and digital ...G05B 2219/25296 Identification module, type...G08C 19/00 Electric signal transmissio...
