DE2262823A1 - ALARM AND MESSAGE SYSTEM - Google Patents

Description

Alarm and reporting system 1.0 The invention relates to an alarm and reporting system for the acquisition and evaluation of different alarm signals, via a two-wire line from substations, so-called main detectors, to one Headquarters are managed.

Alarm and signaling systems are used wherever industrial and production facilities, storage rooms and staff buildings against fire, burglary and disasters are to be preserved. Alarm and signaling systems are already on the market, they are working almost exclusively with direct voltage. The systems work on the current amplification or current weakening principle.

The disadvantage of these systems is that the cable length is limited. Another disadvantage is the temperature dependence of the circuit large temperature differences can result in incorrect switching and thus false alarms. Further disadvantages are that in the systems on the market at most two different messages per line pair can be transmitted, and with Using the systems as an intrusion alarm system, the signals can be simulated relatively easily and the intrusion alarm system can be put out of operation.

The invention is based on the stated disadvantages to eliminate. According to the invention, the object is achieved in that for the data transmission a frequency combination method with additional checking of the code is used will. Two frequencies are available for each of the functions to be transferred.

The safeguard against issuing an incorrect command consists in that the level acting on the sound receiver is not less and not more than may have two frequencies.

Any deviation is displayed as a system or line fault. That The monitoring of the code checker makes the system extremely insensitive against interference.

If the system is designed with 5 frequencies, these 5 frequencies 10 combinations can be formed.

Function 1 f 1 + f 2 2 f 1 + f 3 "3 f 1 + f 4" 4 f 1 + f 5 "5 f 2 + f 3 6 6 f 2 + f 4 "7 f 2 + f 5" 8 f 3 + f 4 II 9 f 3 + f 5 "10 f 4 + f 5 The assignment of the messages to the individual frequency combinations can be made by plant to be redefined for the plant.

The following assignments are possible as an example: 1) f 1 + f 2 break-in 2) f 1 + f 3 fire 3) f 1 + f 4 robbery 4) f 1 + f 5 burglary and fire 5) f 2 + f 3 break-in and hold-up 6) f 2 + f 4 hold-up 7. Fire 7) f 2 + f 5 break-in, hold-up and fire 8) f 3 + f 4 alarm system switched off 9) f 3 + f 5 reserve 10) f 4 + f 5 Reserve 2.0 data processing Fig. 1 shows the basic structure of the system.

The frequency combinations sent by the substations are taken over by the head office. A multiplexer is used to carry out a continuous Query the input lines. The multiplexer is one in groups of ones, tens and hundreds subdivided semiconductor multiplexer. The downstream evaluation circuit checks the incoming code of each line for alarm type and faultless.

The messages are stored in a status memory.

The status memory therefore contains an image of the line status.

3.0 Acoustic message Every new alarm input is reported acoustically. The higher-level reports such as fire and burglary are made intermittently Tone, the other messages with continuous tone.

If the acoustic signal is after a certain, previously set If the time is not acknowledged, an acoustic signal will also sound at the same time the non-acknowledgment is logged. The additional acoustic message and logging is used to monitor the operating personnel of the control center.

4.0 Optical message Parallel to the acoustic message, iede new incoming message is displayed visually.

When an alarm is triggered, a confirmation button assigned to the digital indicator flashes and the associated customer number as well as the type of message lights up in the digital display on tabb. 2).

After the acknowledgment, the lamp in the acknowledgment button goes out at the same time the luminous numeric display.

For the documentation, each report is sent with a report printer system registered.

Fig. 3 shows the composition of the display and the registration.

Fig. 4 shows the block diagram for monitoring the switch-on times the intrusion alarm systems.

The following figure summarizes the display and registration represent.

An intrusion into the monitored by substation 142 was used as an example Plant accepted.

The control center evaluates the information, which leads to the following processes triggered: 1. The digital indicator for the alarm group "intrusion" lights up with customer number 142 and the code "E". for burglary.

2. The acknowledgment button assigned to the digital indicator flashes.

3. The associated buzzer (S1) sounds.

4. The acknowledgment button (Q1) assigned to the buzzer flashes.

5. The printer (Dl) logs the received message.

142 E ........ Time ........ Date .......

The operator will now first press the acoustic signal the Q I acknowledgment key.

When the button is pressed, the signal lamp built into the button goes out. The display on the digital display can remain until appropriate measures are taken e.g. notifying the police or security guards.

Of course, the assigned acknowledgment button can also be used immediately must be pressed because the message is logged on the printer strip and for Initiation of further measures is available.

When the acknowledgment button is pressed, the display no longer appears on the digital display, the illuminated acknowledgment button goes out.

Only after acknowledgment is the indicator for a new message free.

If a new message is received before acknowledgment, it will be displayed in dea buffer memory and immediately after the display becomes free and visual and acoustically as described above.

MONITORING DEVICE Mode of operation During fire alarm systems and If special alarms have to be operational at all times, intrusion alarm systems are used during switched off during business hours.

For this reason it is important to switch the alarm system off and on to monitor and log.

Through the monitoring, only the participants are optically and acoustically reported who did not switch on their alarm system in the evening or their system switch off too early. Basically, however, each time the alarm system is switched on and off logged at all times.

Since business hours are changed frequently, it must be possible to program changed business hours immediately.

The monitoring times for the alarm system are set in one of the control cabinets. A crossbar distributor is used for this. Programming is done by inserting diode plugs. is Alormu protocol Z \ d lerm u protocofl Arm u J Procoll On off (Kcrn Alorm> (No Alorm) just only Protocol to vj protocol In our example, switching on after 6 p.m. and switching off before 8 a.m. is reported optically and acoustically as a 4lar-oldung Crossbar distributor and circuit The crossbar distributor is installed in a swivel frame. 10 sockets are assigned to each participant, with each socket representing a certain period of time.

Example: Time frame customers to customer 500 socket Pz 00 - 06 Oo (to t O692O7oo Co 2 07 oo - 08 oo "to 5) 3 OROs - o6swo o * Co OQ- 09 oo S 5 - 1800 Co) Co 6 lsp-o- 1830 Co IO 7 7 1830 - 19ovo Qo "8 1900 - 2000 Co Co 9 2022 - oO to 39 1o If, for example, the alarm system of customer 1 is to be monitored from 8:00 p.m. to 6:00 a.m., plug sockets I and 10 with diode plugs.

If the customer wants the system to be monitored from 6 p.m. to 8.30 a.m. Clock, are plugged into sockets 1, 2, 3, 4, 7, 8, 9 and 10 diode plugs.

Any later switch-on or too early switch-off of the intrusion alarm system is then signaled as an alarm.

8.o SPECIAL CIRCUITS In principle, the described Set systems to the following operating modes:. Cyclical operation Here all Substations are scanned one after the other and run through according to the individual reporting groups, however, only those that have a new fault are displayed.

This operating mode is normal mode.

b. Individual selection Here, the desired Substation set. The single message states of this substation are displayed by pressing a button. -c. Single pass In this operating mode, all sub-stations are also queried one after the other, but the individual message states are displayed in which there is a deviation from the normal state is present. All deviations are displayed. After one-off. Will pass the query stopped.

Individual selection Individual selection is carried out as follows: 1. Keying in the required zone on the button strip. Preselection buttons Area code # fire burglary special sub- line monitor alarm stations The desired zones light up.

2. The number of the substation must always be specified on the 3-decade keyboard, always a three-digit number, e.g. 008 Substations 1 1 1 2 2 2 3 3 3 4 4 4 No. of # 5 5 5 Substation 6 6 6 7 7 7 8 8 8 9 9 9 0 0 0 Query # query 3. Press the query button.

The preselected alarm group of the selected substation, e.g. fire, is displayed.

4. Additional logging.

If the individual query is to be logged in addition to the visual display, the "Print" button must be pressed before the query button is pressed. Logging. # To press It is therefore possible to preselect the zones - fire - burglary - special alarm system - substations ready for operation - system faults individually, in combination or together.

If a substation is queried for the alarm group "intrusion", for example, there are 2 options: a. There is no alarm. The associated digital indicator then only shows the number of the substation that was selected: 008 b. An alarm is pending. The digital display shows the number of the substation and the code symbol, in our example "E". At the same time, the associated illuminated acknowledgment button flashes and the buzzer sounds.

The message remains saved until it is acknowledged.

If "Print" was keyed in at a), only the name of the substation is Date and time, printed out.

If "Print" was keyed in at b), the alarm symbol is also displayed, e.g. "E" printed out.

8.2.0 Run In the "Run" mode, you have to choose between one-time, A distinction can be made between automatic run-through and manual run-through.

8.2.1 One-time, automatic run The setting is made as follows: 1. Keying in the desired zone on the button strip, as under 8.1.

Fig. For 8.2.1 Preselection buttons Area code # fire burglary special sub- line alarm stations @berwochg 2. Press the "Automatic cycle" button # Automatic button Pass to press 3. If the pending alarms are to be printed out, press the "Print" button. Logging # Print 4. Set the walking speed with the potentiometer "P n. Adjust m the Crotch wobbles The potentiometer can be set between 0.1 and 3 seconds. With 500 participants, this corresponds to a processing time of 50 seconds to 25 minutes.

The speed can be individually adapted to the capacity by the operator or by the person concerned.

With the setting described above, the query is automatic as long as this until it encounters the first alarm condition. The query now stops and the alarm is reported. If it has already been logged, it will now ii protocol with the character "R" is printed out.

If the run is made for control purposes, the acknowledgment can be automatic take place.

By pressing the "Automatic acknowledgment" button, each alarm message is acknowledged after a short time during the run Automatic automatic # Acknowledge Acknowledgment Acknowledgment occurs while switching to the next substation, ie the display duration corresponds to the walking speed. The display duration can thus be set with the potentiometer "P".

Compilation of the operating elements. Fire | burglary j probe er. I. 1 7 1 Automohsche 2 2 2 FomoesdW | O ui 3 f un g | 3 3 3 L2rch is running through 5 5 5 6 6 6 p 7 7 7 cken II Print 8 8 8 to run 9 ~ 9 9 9 F 0, ~~ 01 Etnzel selects All buttons have a built-in signal lamp.

With the help of these few actuation buttons, a large number of Special circuits are made.

8.2.2. Manual run-through All functions and switching options correspond to item 8.2.1, however, the switching does not take place automatically here, but by pressing the "Manual run-through" button. hand pass Starting with 1, the individual substations can now be queried continuously. Switching to the next station takes place by pressing the button.

8.3 Overview of the switching variants I fire II burglary | | Special | [Unler | | SYSIeX | I. rrr / yklisc 2ykilsc he l | Special ope. Inquiry: Area code of the individual stations reporting groups and reporting tmd kombirnerfe Reporting groups groups. I. ll t Prints wöhrcnckr Son $ croblmgc - cinc Alomnldung ig PTogram Sonclrr- I. I. 1 le, 5 1 7e 7 1-ear rsdrclcnl 1 tI 1 I. r Dyrch Print Print Print 17 I ir uc k Anrei I Ii I Display I | Display | Ad Ad Ad Ad

Claims (9)

Claims I.) Alarm and reporting system for recording and evaluating of different alarm Pkldungen, which via a two-wire line from substations, so-called main reports, are forwarded to a control center, thereby identified, that for the transmission of the messages a frequency combination method with additional Code checking is used. 2. Alarm and reporting system according to claim 1, characterized in that that each reporting group, e.g. Fire, two frequencies can be assigned. 3. Alarm and reporting system according to claim 1 and 2, characterized in that that with simultaneous transmission of different reporting groups, e.g. fire and burglary, only 2 frequencies are assigned to these different messages, so that basically only 2 frequencies are transmitted on the line at the same time and evaluated in the headquarters. 4. Alarm and reporting system according to claim 1, 2 and 3, characterized in that that instead of 2 frequencies only one frequency or three or more frequencies are used will. 5. Alarm and reporting system according to claim 1, 2, 3 and 4, characterized in that that in the control center, in addition to the main message number, the Type of message, e.g. fire, break-in or hold-up, is displayed. 6. Alarm and reporting system according to claim 1, 2, 3, 4 and 5, characterized in that that the intrusion alarm systems can be switched on and off from the control center can be monitored. 7. alarm and reporting system according to claim 1, 2, 3, 4, 5 and 6, characterized characterized that by special circuits each main alarm to any Time can be queried from the control center according to the status of the messages, independent of normal alarm monitoring. 8. alarm and reporting system according to claim 1, 2, 3, 4, 5, '6 and 7, characterized indicated that in addition to the transmission of alarm messages, calls are also made can, which is very important when monitoring elevators, to avoid trapped To calm people down. 9. Alarnr and reporting system according to claim 1, 2, 3, 4, 5, 6, 7, 8 and 9, characterized in that switching functions at the subscriber from the control center can be triggered.