Method for data transmission between measuring apparatuses and a data processing device in a measured data recording system
First Claim
1. A method for data transmission between measuring apparatuses and a data processing device in a measured data recording system, which has a plurality of measuring apparatuses and at least one controller, the method comprising the steps of:
- assigning an unambiguous code to each of the plurality of measuring apparatuses;
providing a measuring line between each measuring apparatus and the controller for sending analog measured signals by the measuring apparatuses to the controller via the measuring lines and exchanging digital messages, via the measuring lines, between the controller and the measuring apparatuses;
connecting the data processing device to the controller via a terminal of the controller for receiving digital data packets at the controller from the data processing device and sending digital data packets to the data processing device;
repeatedly executing exchange steps by the controller, wherein an exchange step comprises;
a reception of analog measured signals from the measuring apparatuses;
ora digital exchange of digital messages between the measuring apparatuses and the controller;
orboth the reception of analog measured signals from the measuring apparatuses and the digital exchange of digital messages between the measuring apparatuses and the controller;
starting each of the exchange steps after a predefined time lag;
sending of a first digital data packet by the data processing device to the controller, wherein the first digital data packet contains the unambiguous code of one of a plurality of measuring apparatuses and a first digital message;
extracting of the unambiguous code from the first digital data packet by the controller; and
sending of the first digital message to the one of the plurality of measuring apparatuses by the controller after a completion of one of the exchange steps.
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Accused Products
Abstract
A method for data transmission, between measuring apparatuses (5) and a data processing device (3, 3′) in a measured data recording system (1, 1′) with a controller (7, 7′), includes repeated execution of exchange steps by the controller. The exchange steps include reception of analog measured signals from the measuring apparatuses (5) and/or the digital exchange of digital messages between the measuring apparatuses and the controller (7, 7′). The exchange steps are started with a predefined time lag. A digital data packet is sent by the data processing device (3, 3′) to the controller. The digital data packet contains the code of one of the plurality of measuring apparatuses (5) and a digital message. The controller extracts the code from the digital data packet by the controller (7, 7′) and sends the digital message to the one of the plurality of measuring apparatuses, after the completion of the digital exchange.
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Citations
16 Claims
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1. A method for data transmission between measuring apparatuses and a data processing device in a measured data recording system, which has a plurality of measuring apparatuses and at least one controller, the method comprising the steps of:
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assigning an unambiguous code to each of the plurality of measuring apparatuses; providing a measuring line between each measuring apparatus and the controller for sending analog measured signals by the measuring apparatuses to the controller via the measuring lines and exchanging digital messages, via the measuring lines, between the controller and the measuring apparatuses; connecting the data processing device to the controller via a terminal of the controller for receiving digital data packets at the controller from the data processing device and sending digital data packets to the data processing device; repeatedly executing exchange steps by the controller, wherein an exchange step comprises; a reception of analog measured signals from the measuring apparatuses;
ora digital exchange of digital messages between the measuring apparatuses and the controller;
orboth the reception of analog measured signals from the measuring apparatuses and the digital exchange of digital messages between the measuring apparatuses and the controller; starting each of the exchange steps after a predefined time lag; sending of a first digital data packet by the data processing device to the controller, wherein the first digital data packet contains the unambiguous code of one of a plurality of measuring apparatuses and a first digital message; extracting of the unambiguous code from the first digital data packet by the controller; and sending of the first digital message to the one of the plurality of measuring apparatuses by the controller after a completion of one of the exchange steps. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A measured data recording system comprising:
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a plurality of measuring apparatuses, an unambiguous code being assigned to each of the plurality of measuring apparatuses; a controller; a measuring line between each measuring apparatus and the controller for sending analog measured signals by the measuring apparatuses to the controller via the measuring lines and exchanging digital messages, via the measuring lines, between the controller and the measuring apparatuses; a data processing device; a terminal connection connecting the data processing device to the controller via a terminal of the controller for receiving digital data packets at the controller from the data processing device and sending digital data packets to the data processing device, the data processing device being configured to send a first digital data packet to the controller, wherein the first digital data packet contains the unambiguous code of one of a plurality of measuring apparatuses and a first digital message, the controller being configured to; repeatedly execute exchange steps, wherein an exchange step comprises; a reception of analog measured signals from the measuring apparatuses;
ora digital exchange of digital messages between the measuring apparatuses and the controller;
orboth the reception of analog measured signals from the measuring apparatuses and the digital exchange of digital messages between the measuring apparatuses and the controller; start each of the exchange steps after a predefined time lag; receive the first digital data packet sent by the data processing, wherein the first digital data packet contains the unambiguous code of the one of a plurality of measuring apparatuses and the first digital message; extract the code from the first digital data packet; and send the first digital message to the one of the plurality of measuring apparatuses by the controller after a completion of one of the exchange steps. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A measured data recording system comprising:
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a plurality of measuring apparatuses, an unambiguous code being assigned to each of the plurality of measuring apparatuses; a controller; a measuring line between each measuring apparatus and the controller for sending analog measured signals by the measuring apparatuses to the controller via the measuring lines and exchanging digital messages, via the measuring lines, between the controller and the measuring apparatuses; a data processing device; a terminal connection connecting the data processing device to the controller via a terminal of the controller for receiving digital data packets at the controller from the data processing device and sending digital data packets to the data processing device, the data processing device being configured to send a first digital data packet to the controller, wherein the first digital data packet contains the unambiguous code of one of a plurality of measuring apparatuses and a first digital message, the controller being configured to; repeatedly execute exchange steps, wherein an exchange step comprises; a reception of analog measured signals from the measuring apparatuses;
ora digital exchange of digital messages between the measuring apparatuses and the controller;
orboth the reception of analog measured signals from the measuring apparatuses and the digital exchange of digital messages between the measuring apparatuses and the controller, wherein the exchange steps are started with a predefined time lag; receive the first digital data packet sent by the data processing, wherein the first digital data packet contains the unambiguous code of the one of a plurality of measuring apparatuses and the first digital message; extract the code from the first digital data packet; and send the first digital message to the one of the plurality of measuring apparatuses by the controller after a completion of the exchange step, wherein a shift register is provided connected to or as a part of the controller; the first digital message is stored in the shift register; the controller is configured to determine, after the completion of one of the exchange steps, a free time that remains until a start of a next exchange step and to compare the free time with a first transmission time that is needed for sending a next digital message to be output by the shift register to a measuring apparatus; and the controller is configured such that the next digital message to be output by the shift register is sent and deleted from the shift register if the free time is longer than the first transmission time. - View Dependent Claims (14, 15, 16)
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Specification