RU2079975C1 - Measurement data distributing device - Google Patents

Abstract

FIELD: telephony; data acquisition and transmission over telephone lines. SUBSTANCE: device has 4m incoming line sets 1₁-1_m, four first-section switching units 2₁-1₄, second-section switching unit 3, eight outgoing line sets 4₁-C₈, control unit 5, storage unit 6, storage matching unit (encoding unit) 7, and scanner 8. EFFECT: provision for acquiring measurement data from great number of sensors and transmitting it to several users simultaneously at low expenses for line equipment. 2 cl, 1 dwg

Description

 The invention relates to telephony, in particular to systems for collecting and transmitting information over telephone lines.

 Known devices for collecting information containing sensors connected by lines to a polling unit containing a control unit and a memory unit (see EM Martynov and others. Information exchange in automated enterprise management systems. M. Communication, 1978, p. 143 145).

 However, to transmit information to the polling unit, the sensors must be connected to it by an individual line, which increases the amount of linear equipment.

 Known devices for collecting and distributing information containing sensors connected by lines to a polling unit, which is connected via a separate line to an information collecting and processing unit containing a memory unit, while the polling unit contains a scanning unit and a control unit connected to the scanning unit (see USSR author's certificate N 433527, H 04 M 11/06, 1974).

 The disadvantages of this device are the long transmission time of information from the polling unit to the information collection and processing unit, since information during cyclic interrogation from each sensor enters the information collection and processing unit after time nxt, where n is the number of sensors and t is the time of reading information from one sensor .

 The technical effect of the invention is to reduce the volume of linear equipment and reduce the time to obtain measurement information.

 The specified technical result is achieved by introducing 4m incoming linear sets, four switching blocks of the first link, a switching block of the second link and eight outgoing linear sets, as well as a block for interfacing with a storage block (coding block), while the switching blocks of the first stage contain eight outputs, and the block The switching of the second stage contains eight inputs and eight outputs.

 In FIG. 1 is a structural electrical diagram of a measurement information distribution device.

The measuring information distribution device contains: 4 _m incoming linear sets 1 ₁ -1 _m in each of the four switching blocks of the first link 2 ₁ 2 ₄ containing "n" inputs and eight outputs, the switching block of the second link 3, eight outgoing linear sets 4 ₁ -4 ₈ , control unit 5, memory unit 6, matching unit with memory unit 7, and scanner 8.

 A device for measuring information distribution works as follows.

The information sensors are connected by lines (possibly telephone) to incoming linear sets 4 ₁ 4 _m , providing, if necessary, power to the sensors and matching the parameters of the line with the parameters of the switching system (providing, if necessary, galvanic isolation). If the information has a discrete form (there is current there is no current), i.e. when elements with two stable states (relays, contacts, etc.) are used as sensors, the control unit 5 reads this information and, depending on the given program, generates a command to connect it to an external receiving unit (operator), controlling the corresponding the switching units of the first and second links 2 ₁ 2 _n and 3 and downward linear sets 4 ₁ 4 ₈ . If this information is not intended for transmission to the operator, it is stored in the memory unit 6, where it is received from the matching unit with the memory unit 7. This unit receives information from the inputs (n - m ^o C n) of the switching units of the first link 2 ₁ 2 ₄ . (It should be noted that the concept of “inputs” and “outputs” of a switching unit is a purely terminological concept, and with internal switching, inputs become outputs). If all the inputs of this switching unit of the first link 2 ₁ 2 ₄ are occupied, information is transmitted through another switching unit of this link 2 ₁ 2 ₄ , since six of the eight outputs of each switching unit of the first link 2 ₁ 2 _{4 are} connected to the corresponding outputs of other switching units of the first link 2 ₁ 2 ₄ . If the information comes from the sensors continuously (analog signal), a scanner 8 is used to determine its presence, which polls the incoming linear sets 1 ₁ 1 _m , and if there is a change in the signal level, transmits information about the number of the incoming linear sets 1 ₁ - 1 _m , to which information arrives. The control unit can be performed in the same way as in the quasielectronic 0aTS “Quantum” (Designing quasielectronic automatic exchanges of the “Quantum” type, M. 1983, Ministry of Communications of the USSR, p. 7 12). The number of inputs "n" of the switching blocks of the first stage 2 ₁ 2 ₄ can be any standard 4, 8, 16, 64, etc.

This device allows for low costs for linear equipment to receive measurement information by several consumers (operators) since outgoing linear sets 4 ₁ 4 ₈ can be included in lines connected to different exchanges.

 The device is installed in a place close to the information sensors.

Claims (2)

 1. A measurement information distribution device comprising a control unit to which a memory unit is connected, characterized in that four switching units of the first link, 4m input line sets, a matching unit with the memory unit, a switching unit of the second link with eight inputs and eight are inserted into it outputs and eight outgoing linear sets, while the control inputs and outputs of the control unit are connected to the corresponding inputs and outputs of the switching units of the first link, the switching unit of the second link and outgoing linear sets, incoming linear sets are connected to the corresponding m inputs of each switching unit of the first link, nm inputs of each of which are connected to the inputs of the matching unit with a memory unit, the output of which is connected to the memory unit, the information outputs of incoming linear sets are connected to the inputs of the control unit, when the first and second outputs of the switching units of the first link are connected to the corresponding inputs of the switching unit of the second link, the outputs of which are connected to the information inputs of outgoing linear sets, the third and fourth outputs of the first switching unit of the first link are connected respectively to the eighth and seventh outputs of the fourth switching unit of the first link, the sixth and fifth outputs of which are connected respectively to the third and fourth outputs of the second switching unit of the first link, the fifth and sixth outputs of which are connected respectively with the sixth and fifth outputs of the third switching unit of the first link, the seventh and eighth outputs of which are connected to the sixth and fifth outputs of the first switching unit of the first link a, the seventh and eighth outputs of which are connected to the eighth and seventh outputs of the second switching unit of the first link, while the third and fourth outputs of the third switching unit of the first link are connected to the third and fourth outputs of the fourth switching unit of the first link.  2. The device according to claim 1, characterized in that the information outputs of the incoming linear sets are connected to the inputs of the control unit through a scanner, the control input of which is connected to the output of the control unit.