RU33446U1 - LOCALIZER - Google Patents

Description

The proposed utility model relates to fire alarm systems and can be used to identify the causes of false alarms in fire and security alarm systems, with which it is possible to record the operation of alarm control panels and detectors, open circuit, short circuit of alarm loops or subscriber line “ATSS object, as well as voltage dips and power outages supplying the fire alarm equipment.

A known localizer (Technical description and operating instructions, Moscow 1988), which is the prototype of the proposed model, is a device that can identify the causes of false alarms in fire alarm systems (OPS) and containing: an input converter connected to the input of the comparison device, its output is with a temporary selection device, which in turn is connected to a storage device, the output of which is connected to a display device.

The input converter rectifies the controlled current 1vh of any polarity on the loop, converts it into voltage and scales (division) to a level acceptable for the comparison device. (A more general formula is the conversion of a constant electrical signal (current) into a constant electrical signal having a level acceptable for supplying a comparison device to the input). The comparison device compares the analog signal (voltage) UBX coming from the input converter with the reference signal

Localizer (voltage) Uonop and generates a discrete signal Ud, receiving

one of two logical levels: О - if UBX Uonop, 1 - if UBx Uonop. The reference signal (voltage) Uonop is generated by the comparison device.

The time selection device generates a discrete signal U from a discrete signal and as follows. When changing the ID from 1 to O, the time selection device compares the duration of the presence of level O with the duration Tsinh of the reference discrete signal UCHHX. If T0 Tsinh, the discrete signal Щ is set to level 1, otherwise it retains its previous state. When U is changed from O to 1, the time selection device compares the duration T1 of the presence of level 1 with the duration Tsinh of the reference discrete signal UCHHX generated by the clock generator. If T1 Tsinh, the discrete signal id is set to level O, otherwise it retains its previous state.

The storage device counts and stores the number N of transitions id from level O to level 1.

The display device displays a code corresponding to the number stored in the storage device.

The disadvantage is that it does not have the property of fixing the response time.

No other analogues were found by the applicant.

The objective of the proposed utility model is to create a localizer that provides fixation of the response time.

The problem is achieved in that in the localizer containing the input transducer connected to the input of the comparison device, its output is with a temporary selection device, which in turn is connected to a storage device, the output of which is connected to the display device, an analog-to-digital converter, a device are introduced recording control and display control device, the output of the latter is connected to the input of the display device, the input to the output

D -fOl y

2

storage device, it, in turn, is connected to the output of the recording control device by the input, the input of which is connected to the output of the temporary selection device, its input is the output of the comparison device, and it is connected by the input to the output of the analog-to-digital converter, connected by the input to the output input converter

The drawing shows a functional diagram of the proposed device localizer.

The proposed localizer contains 5 channels identical in structure. Each channel contains the following main functional blocks:

an input converter 1 connected to the input of the analog-to-digital converter 2, the input of which is connected to the input of the comparison device 3. It is in turn connected to the temporary selection device 4, and its input to the recording control device 5. The recording control device 5 is connected to the storage device 6, and its output is connected to the display control device 7, the output of which is connected to the display device 8.

Input Converter 1 can be of two types

-for matching voltage signals,

-for matching current signals.

In the first case, the input converter is a resistive divider; in the second case - a resistor (shunt), the voltage drop from the measured current, which is amplified using an operational amplifier. The analog-to-digital converter 2 is an analog-to-digital converter for bitwise balancing, which is part of the microcontroller microcircuit. Comparison device 3, temporary selection device 4 and recording control device 5 are implemented as a program fragment of a computing device included in the composition of the microcircuit

w-l- / /

microchips of an electrically reprogrammable read-only memory device. The display control device 7 is partially implemented as a program fragment executed by a computing device that is part of the microcontroller microcircuit, and partially based on a specialized liquid crystal display control microcircuit that performs the functions of the display device 8.

The device operates as follows: input converter 1 converts a controlled constant electric signal (current, voltage) SBX of any polarity on the loop into voltage and scaling (division, amplification) to a level acceptable for supplying an analog-to-digital converter 2 to the input.

A / D converter 2 converts the UBX analog signal from the output of input converter 1 to a discrete NBX signal.

Comparison device 3 compares the discrete NBX signal (code) from the analog-to-digital converter 2 with two reference signals (codes) NonopO and Nonopl and generates a discrete signal Nd, which receives one of three logical levels: О, if NonopO NBx Nonop 1, 1, - if NBx NonopO, 2, - if NBx Uonop 1.

The device of temporary selection 4 generates a discrete signal CD as a discrete signal CD as follows. When changing the value of Ud, the device of temporary selection 4 compares the duration T of the presence of a new level with the duration Tsinh of the reference discrete signal. If T Tsinh, the discrete signal CD is set to a level in a new value, otherwise it retains its previous state.

The control device 5 generates event records as follows. If within 1 minute (counted by the real-time timer) at least one discrete signal Ud out of 5 is changed, a record is generated in the memory 6 containing:

-time (with a resolution of 1 minute) and the date the record was created according to the readings of the real-time timer;

- values of discrete signals MD of all channels at the beginning of a minute;

- values of discrete CD signals of all channels at the end of a minute;

-codes, changes in CD states for each channel within a minute.

The real time timer serves as a source of information about the current time and date.

The storage device 6 stores records of observed events generated by the recording control device 5. The display control device 7 outputs to the display device 5, stored in the storage device 6, as well as the current values of the NBX codes for each channel, the current time and date, NonopO values and Nonopl for each of the channels. The display device 8 displays the code. corresponding to the number stored in the storage device 6.

Thus, the localizer captures the response of the fire-alarm loop elements with an indication of the exact time and the reason for the operation in three categories:

- power outage,

violation of the loop (detector operation),

- deviation of the loop parameters from the norm.

The device is installed in addition to the loop elements from which a false alarm notification was received by the central security console. The localizer fixes the exact time of response of the elements of the security and fire alarm loop, as well as their boundary operating modes and allows you to accurately determine the specific unstable working section of the alarm loop. Head of the Novosibsch branch of the SIC “Oxj police major 1 9; -; WfM / ,, --- Dyubanov A.V.

) {0 {b,

Claims (1)

A localizer containing an input converter connected to the input of the comparison device, its output - with a temporary selection device, which in turn is connected to a storage device, the output of which is connected to a display device, characterized in that an analog-to-digital converter, a control device are inserted into it recording and display control device, the output of the latter is connected to the input of the display device, the input is to the output of the storage device, it, in turn, is connected by an input to the output of the device recording control device, the input of which is connected to the output of the temporary selection device, its input - with the output of the comparison device, which is connected by the input to the output of the analog-to-digital converter connected by the input to the output of the input converter.