DATA RECEIVER

• US 3,820,075 A
• Filed: 01/31/1973
• Issued: 06/25/1974
• Est. Priority Date: 01/31/1973
• Status: Expired due to Term

• Current Assignee: Ebner Theran L and Mcconnell James
• Original Assignee: Theran L. Ebner
• Inventors: Ebner, Theran L.
• Primary Examiner(s): Zache, Raulfe B.
• Application Number:
  US05/328,468
• Time in Patent Office: 510 Days
• Field of Search: 340/172.5,151 179/2DP
• US Class Current: 714/49
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

A data receiver for polling, receiving and processing data from a plurality of measuring transducers through a communication system. The receiver being capable of receiving data in a plurality of different signaling modes, processing the received data, and storing the processed data. Means for synchronizing the various signal modes and parity checking the accuracy and validity of the received data. Processing circuitry for handling both serially oriented data and parallel data. An electrically interlocked data programmer and data receiving device, the first of which controls the polling of the transducers and properly identifies the data received in the receiving device.

Claims

1. A data receiver for polling, receiving and processing data from a plurality of measuring transducers through a communication system comprising, an input having means for receiving a plurality of different signaling modes, temporary storage memory means connected to the input for receiving the incoming data, means electrically connected to the temporary storage means for checking the parity of the incoming signal, a comparator and comparatory memory receiving the output from the temporary storage for correcting ambiguities in the position of the measuring transducer, an output memory means receiving the corrected output from the comparator and the comparator memory, a data programmer including identification of said transducers, said programmer connected to the communication system for controlling polling of the transducers, and a data output receiving device connected to the output memory and to the programmer for receiving the output data from the output Memory along with corresponding identification from the programmer.

2. The apparatus of claim 1 wherein the temporary storage means is a serially connected plurality of flip flops for receiving data in a serial mode, and having means for parallel entry into the first six bit positions, and a clock circuit connected to the plurality of flip flops for moving data pulses entered into these six positions by parallel means serially into the flip flops on receipt of intersymbol parallel data pulses.

3. The apparatus of claim 1 wherein the data programmer and the data output receiving device are keypunch machines and including, an auxiliary contact connected across each of a plurality of keyboard contacts of the output receiving keypunch machine, each of the auxiliary contacts having an actuating coil, each actuating coil having an actuating line connected from the data programmer keypunch machine in the data receiver, each actuating line including a diode and an SCR for allowing actuation of the actuating coil through the actuating line, and a logic circuit between the two keyboard machines for maintaining the two keyboard machines in synchronism.

4. The apparatus of claim 3 wherein the actuating coil includes a second auxiliary contact in parallel to its connected SCR for turning off its SCR.

5. The apparatus of claim 4 wherein the data programmer input keypunch machine includes, an auxiliary contact connected across each of a plurality of keyboard contacts of the data programmer keypunch machine, each of said auxiliary contacts having an actuating coil, each actuating coil having an actuating line, each actuating line including a diode and an SCR for allowing actuation of the actuating coil through the actuating line.

6. A data receiver for polling, receiving, and processing data from one or more measuring transducers through a communication system comprising, an input having means for receiving data and synchronizing pulses from the measuring transducers, means electrically connected to the input means for separating the synchronizing pulses from the incoming data, temporary storage memory means connected to the input for receiving the incoming data, means connected to the temporary storage means for checking the parity of the incoming signals, a comparator and a comparator memory receiving the output from the temporary storage for correcting ambuigities in the position of the measuring transducers, an ouput memory means receiving the corrected output from the comparator and comparator memory, a data programmer including identification of said transducers, said programmer connected to the communication system for controlling polling of the transducers, and a data output receiving device connected to the output memory and to the programmer for receiving the output data from the output memory along with corresponding identification from the programmer.

7. The apparatus of claim 6 wherein the temporary storage means is a serially connected plurality of flip flops for receiving data in a serial mode, and having means for parallel entry into the first six bit positions, and a clock circuit connected to the plurality of flip flops for moving data pulses entered into these six positions by parallel means serially into the flip flops on receipt of intersymbol parallel data pulses.

8. The apparatus of claim 6 wherein the data programmer and the data output receiving device are keypunch machines and including, an auxiliary contact connected across each of a plurality of keyboard contacts of the output receiving keypunch machine, each of the auxiliary contacts having an actuating coil, each actuating coil having an actuating line connected from the data programmer keypunch machine in the data receiver, each actuating line including a diode and an SCR for allowing actuation of the actuating coil through the actuating line, and a logic circuit bEtween the two keyboard machines for maintaining the two keyboard machines in synchronism.

9. The apparatus of claim 8 wherein the actuating coil includes a second auxiliary contact in parallel to its connected SCR for turning off its SCR.

10. The apparatus of claim 9 wherein the data programmer input keypunch machine includes, an auxiliary contact connected across each of a plurality of keyboard contacts of the data programmer keypunch machine, each of said auxiliary contacts having an actuating coil, each actuating coil having an actuating line, each actuating line including a diode and an SCR for allowing actuation of the actuating coil through the actuating line.

11. A data receiver for polling, receiving and processing data from one or more measuring transducers through a communication system comprising, an input having means for receiving a plurality of different signaling modes each of which includes synchronizing pulses, means electrically connected to the input for identifying which signal mode is being received, means electrically connected to the input for inhibiting the inputs of those signaling modes other than the one being received, means electrically connected to the identifying means for removing the synchronizing pulses from the signal being received, temporary storage memory means connected to the removing means for receiving the incoming data less its synchronizing pulses, means electrically connected to the temporary storage memory means for checking the parity of the incoming received signals, a comparator and a comparator member receiving the output from the temporary storage for correcting ambiguities in the position of the measuring transducers, an output memory means receiving the corrected output from the comparator and the comparator memory, a data programmer including identification of said transducers, said programmer connected to the communication system for controlling polling of the transducers, and a data output receiving device connected to the output memory and to the programmer for receiving the output data from the output memory along with corresponding identification from the programmer.