SU924735A1 - Device for receiving and displaying information for fire alarm system - Google Patents

Description

The invention relates to ’’ fire alarm technology and can be used to collect and display information about the status of protected objects.

A device for receiving information about the state of protected objects, including a printing device, an electric clock and a display unit, the output of which is connected to the first input of the printing device, the second input of which is connected to the output of the electric clock [11.

However, in the device, the transmission of information to the receiving device about the status of the protected objects is single, which leads to its loss.

In addition, the lack of a storage device does not allow the operator to have a complete picture of the state of protected objects.

Closest to the proposed is a device for receiving and displaying information for fire and security alarm systems, comprising a transceiver, the first output of which is connected to the first input of the buffer memory unit g, the first output of which is connected to the first input of the random access memory block, the output of which is connected to the input of the light indication unit the output of which is connected to the input of the light indication board, a control unit, the output of which is connected to the first input of the transceiver, the second input of the RAM block, and c. the second input of the buffer memory block; the second output of which is connected to the first input of the print unit and the first input of the display unit, the output of which is connected to the second input of the print unit, the output of which is connected to the third input of the buffer memory unit: an electronic clock whose output is connected to the third input of the oven · TI unit [2 ].

However, this device does not provide recovery adopted infor mation state protected objects after a short failure of the panel (power-off, preventive maintenance), and does not provide the sequence ₅ Tel'nykh input and output of information coming into the buffer memory, a display unit, printing unit, and RAM block. The random filling of buffer memory cells with information and its output to the recording devices during a quick change of information at the facility leads to a mismatch between the display of the status of the protected facility on the central monitoring station; offline control buffer memory and performance printing unit. furthermore the device does not provide a registration start operation panel ₂₀ vannogo centralized surveillance monitoring objects and alarm signal at the breakage link or of failure of a transceiver.

The purpose of the invention - increasing invariant $ ₂ formational capacity and reliability of the device.

This goal is achieved by the fact that in the device for receiving and displaying information for security and fire alarms, containing a transceiver, a control unit, the output of which is connected to the first ^! the input of the RAM block and the first input of the block, the buffer memory, the first output of which is ³⁵ keys to the first input of the print block and the input of the indication block; the output of which is connected to the second input of the printing unit, the output of which is connected to the second input of the buffer memory unit, ^{40 the} second output of which is connected to the second input of the random access memory unit, the output of which is connected to the input of the light indication memory unit, the output of which is connected to the first ⁴⁵ input of the light panel indications, electronic clocks, the output of which is connected to the third input of the print unit,; a data recovery unit, an input-output unit and a control unit ^{50 have been} introduced, the first output of the transceiver is connected to the first input of the control unit, the first output of which is connected to the fourth input of the print unit, the second output of which is connected to 55 the second input of the control unit, the second output of which is connected to the second input of the light indication board, the output of the control unit is connected to the first input of the input-output unit and to the input of the information recovery unit, the output of which is connected to the input of the transceiver, the second output of which is Inonii to a second input of the input-output, which output is connected to the third input buffer memory unit, whose third output is connected to the third input of the control unit.

The drawing shows a block diagram of the proposed device.

The device contains a transceiver 1, a control unit 2, a buffer memory unit 3, a random access memory unit 4, an indication unit 5, a printing unit 6, an electronic clock 7, a light indication memory unit 8, a light indication board 9, a control unit 10, an input unit 11 output, block 12 information recovery.

. The information recovery block is designed to generate a request signal at a frequency different from the frequency of the receipt that is received at the input of the transceiver. The information recovery unit contains a frequency driver built on triggers, and a control circuit built on AND-NOT elements.

The input-output unit is intended for sequential input-output of the passing information into the buffer memory. It consists of binary counters and a control circuit built on triggers and I-NOT and I-ILINE elements.

The control unit monitors the operability of the print unit, controls the filling of the buffer memory, provides registration of the beginning of the device with the objects of control and the issuance of an alarm signal when the communication line is broken or the transceiver fails. The control unit includes ten cells, each of which contains a trigger and NAND elements that provide the beginning of control and signal output Alarm, trigger register and display amplifiers for monitoring the buffer memory and binary counter, trigger and inverters for monitoring the print unit.

Information from the monitoring objects on the device on the status of protected objects. The sync pulse of the information code starts the distributor of the transceiver 1, which writes the code to its trigger register. With the correct reception of information, the transceiver 1 generates a receipt signal to the monitoring object. The control unit 2, consisting of a pulse distributor, polls the state of the trigger register of the buffer memory unit 3 selected by the input-output unit 11. The input / output unit 11 comprises a write counter and a read counter. If the buffer memory is free ’, the recording counter is on the selected free register of block 3 · 15. When information is received in the register of the transceiver 1, the input / output block 11 gives permission to transfer information from the transceiver 1 to the register of the block 3 of the buffer memory selected by the input / output block 11. In this case, the write counter of the input / output unit 11 goes to the poll and analysis of the next register of the buffer memory unit 3. The read counter of the input / output unit 11 finds the busy register of the buffer memory unit 3 and, provided that the print unit 6 is free, gives the permission to read information into the register of the print unit 6 upon the command from the control unit 2. · The printing device of the print unit 6 registers the number the object from which the information came, ·: type of message and current time.

At the same time, the type of message and. the object number is displayed by the display unit 5. The type of information on command from the control unit 2 is written · -, is stored in the main memory unit 4 and stored there until the state of the protected object changes. The time in the printing unit 6 comes from the electronic clock 7 · At the command of the operator, using the light indication memory unit 8, the state of the cells of the random access memory unit 4 is displayed on the light indication board 9.

When you turn off the device during maintenance work or turn off the power previously recorded information in block 4 of the RAM is erased. For further work, it is necessary to restore information about the state of protected objects. At the command of the operator, the control unit 2 generates a permit for the formation of the signal information recovery unit 12 by a Request with a frequency ί <χ other than the receipt signal frequency. The request signal arrives at the transceiver 1 and then to the monitoring objects, which according to a certain 5 program give information about the status of the protected objects.

A fire alarm display device provides information reception from ten monitoring objects, each of which serves up to 100 objects. Each control object periodically generates a slut. * · A billing code characterizing its performance. Upon receipt of the first. service code to the transceiver 1 blRk 10 control gives the command to register unit 6 print time and the number of the object of control from which the service code came, and 20 on the indicator board 9 light indication the corresponding indicator lights up. In the event of a break in the communication line or failure of the transceiver 1, the control unit 10 generates a signal

The accident, which is recorded by the printing unit 6 and is displayed on the display panel 9 light indication. In the event of a failure of the print unit 6, the control unit 10 generates a Print alarm signal, which is sent to the light indication board.

Each register of block 3 of the buffer memory in block 10 of the control is assigned a specific cell. As _{3J completes the} registers of block 3 of the buffer memory, at the command from block 10 of the control, certain light indicators light up on the light display panel, allowing the operator ₄₀ 1 to control the occupancy of block 3 of the buffer memory.

The application of the proposed device will improve the reliability of the protection of objects, as a result of which losses caused by thefts and fires will be significantly reduced.

Claims (2)

1. USSR author's certificate №, cl. G 08 B 25/02, 1973. 2. USSR author's certificate No. 691906, cl. G 08 B 25/02, 19774i