WO2000008840A1 - Dispositif de securite pour la commande et/ou la surveillance d'espaces predetermines - Google Patents

Dispositif de securite pour la commande et/ou la surveillance d'espaces predetermines Download PDF

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Publication number
WO2000008840A1
WO2000008840A1 PCT/EP1999/005444 EP9905444W WO0008840A1 WO 2000008840 A1 WO2000008840 A1 WO 2000008840A1 EP 9905444 W EP9905444 W EP 9905444W WO 0008840 A1 WO0008840 A1 WO 0008840A1
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WIPO (PCT)
Prior art keywords
ucs
bus
processor
signal
voltage
Prior art date
Application number
PCT/EP1999/005444
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German (de)
English (en)
Inventor
Harry Zwick
Original Assignee
Eurosafe Electronic Gmbh
Harry Zwick
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eurosafe Electronic Gmbh, Harry Zwick filed Critical Eurosafe Electronic Gmbh
Priority to AU54153/99A priority Critical patent/AU5415399A/en
Publication of WO2000008840A1 publication Critical patent/WO2000008840A1/fr

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
    • G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
    • G05B23/0235—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/23—Pc programming
    • G05B2219/23037—Touch key integrated in display

Definitions

  • Safety device for the control and / or monitoring of predetermined rooms
  • UCS safety device
  • a single processor receives all the information and takes over all UCS tasks.
  • the timing problems normally resulting from this are solved by sophisticated multiple uses of hardware and software.
  • the DTMF-De / Encoder is used not only for the generation and detection of telephone signals, but also for data transmission via both BUS systems and for the generation of bell and alarm signals.
  • UCS has no mechanical buttons. It comes with a very large and graphics-capable display a multi-colored lighting specially developed for this device is used, which has been implemented using super bright light-emitting diodes (LED) that have only been on the market for a very short time.
  • LED super bright light-emitting diodes
  • the processor simultaneously processes 16 programs completely independently of one another and is therefore comparable to the new possibilities of WINDOWS '95/98 (multitasking). 4 programs alone are only there to monitor the proper functioning of the other 12 programs.
  • the entire software and hardware is very modular and also allows the use of partial functions.
  • the processor is connected to the periphery via a total of 60 outputs and 18 inputs.
  • BUS 1 / BUS 2 used, to which additional combination detectors (up to 255) can be connected. Both bus systems were separated for security reasons, although in principle they work in exactly the same way. So that's about one Intercom system connected to BUS 2 is not possible to intervene in BUS 1 in order to manipulate other combination detectors connected in the monitored security area.
  • the combi detectors (which can also be operated by radio with a transceiver) send comprehensive environmental information in the form of measured values.
  • the measured values from motion detectors, brightness detectors, temperature detectors and (if necessary) gas / smoke detectors and acoustic detectors are transmitted. Only the UCS decides whether and which actions should be started based on the available values.
  • An alarm decision is made on the basis of the measured value of the motion detector in direct dependence on the brightness and time (midday sun hits the sensor) and the temperature change within a time grid (heating runs high, season is also known to the UCS by radio clock).
  • a simultaneous acoustic message in turn lowers the trigger threshold.
  • UCS can simultaneously take over the entire control from the roller shutters to the heating, so here too, multiple uses of the existing intelligence are possible from the sensor to the central unit.
  • the large display and the exclusive software control even enable the display of site plans with the display of local danger messages and control processes.
  • the software can be loaded directly from a PC / laptop through the V24 interface or even at any time via the telephone interface, which is available anyway, all over the world. This in turn results in a completely new type of decentralized monitoring of e.g. Industrial complexes, even if they are scattered all over the world. Up to 255 UCSs can be connected to one system. It is completely irrelevant whether this is done via the BUS interfaces, via telephone or by radio. Entire holiday villages with one UCS per house can be monitored and controlled.
  • the combi detector which is already available in the form of the UCS itself, knows e.g. the family in Germany also knew exactly about the room and outside temperatures in the Spanish weekend house.
  • each UCS manages a state matrix internally, in which the states of all other permanently coupled UCSs are stored. All connection data are also stored in this matrix.
  • Mixed communication types are also possible in which, for example, 3 UCS's communicate by radio, while two UCS's are connected to BUS 1 and 2 other UCS's are reachable by phone. This enables unexpected perspectives in both surveillance and domestic formation and control area (e.g. central control /
  • a status matrix is also built up in the loose coupling. There are several reasons for this:
  • a UCS in residential unit (house) 1 knows exactly about the state of the UCS in WE (house) 2 in order to provide assistance if necessary. This becomes necessary in the case of alarms and emergency calls of any kind or in the event of fault messages that could end in the event of a system failure.
  • the middle coupling means that an external UCS 'not only notices the signals such as alarms, emergency calls, faults - but also displays them. All forms of neighborhood help are possible here.
  • DWG digital dialing devices
  • AWAG Analog dialing devices
  • DWG's and AWAG's can also only send information, not receive it and transfer it to a processor for further processing. To do this, additional modems must be used. In order to exploit all information options, 3 devices are currently required on a telephone line, not to mention the necessary interfaces.
  • Wire-bound systems differ in conventional wiring and wire-saving BUS wiring.
  • Wireless systems split up according to quality.
  • the spectrum ranges from the cheapest hardware store system at a price of around DM 600 to a VdS system for around DM 10,000.
  • New and customer-specific software can be downloaded all over the world - Radio transceiver in the 27 / 40MHz band for data and voice radio, all data transmissions are encrypted and acknowledged in the safety-relevant functions. Processor-controlled change over 40 channels. - Integrated DTMF dialer, which not only programmed data and event memory to any programmed
  • circuit description is based on the attached circuit diagrams of all three modules. Due to the different tasks that each circuit part takes a breakdown into assemblies in the form of
  • the radio transceiver which consists of a commercially available transmitter / receiver in the 433 MHz band with 10mW transmission power and represents the state of the art, is dispensed with.
  • the modules are:
  • IC xxx integrated circuits
  • PL xxx screw terminals
  • Trxxx transistors and the transformers (transformers)
  • the numbering is from left to right!
  • This Module is a one-chip computer and has the following properties:
  • non-volatile flash memory for the program (512 kByte)
  • RAM memory for data and tables (256 kByte)
  • a task that monitors that every other program (task) executes certain program steps within a certain time window is very important. If this is not necessary, this particular program is restarted by itself. Together with a watchdog task, which also runs in parallel, this reliably prevents programs from "hanging up” in whole or in part or even the entire processor.
  • Another important feature is that it is possible for time-critical actions in the sequence to cessors, which are normally divided evenly between the individual programs (tasks). For example, when receiving and sending a protocol via telephone, bus or radio, 70% of the computing power is used to create and code the protocol.
  • IC 12, 13 14 on the processor board and IC 2 and 3 on the matrix board are used to add 8 digital outputs each.
  • IC 17 expands the pulse counter input of the processor (PULSIN) to 4 inputs for radio clock, IR light barriers, radio receiver and audio tone evaluation.
  • An analog measurement input is used via the 4-way analog switch IC 18 for the measurement value acquisition of both integrated PIR detectors and both brightness detectors.
  • the processor manages a total of 78 ports, which work as inputs and / or outputs as well as digital and / or analog, depending on the circuit type.
  • the D / I line of IC19 (PIN11) is either set to HIGH (a status is to be sent) or LOW (information is sent for output).
  • the processor communicates this to the IC 19 by setting the chip select line CS from IC19 (PIN 10) to LOW via the expander IC12. After lmsec, CS is switched back to HIGH and the same process is now done for the next peripheral
  • the 8-bit wide data bus now alternately also serves as the address bus.
  • the address is on D0-D7
  • the Aclk line on IC 7 (PIN 30) signals to IC 8 that the address is to be adopted.
  • the address latch IC s IC 9 (outputs) and IC 10 (inputs) the corresponding output (P0-P4 or E0) is switched to LOW, depending on the address output, whereupon the chip select means the addressed IC s that the data to be transferred are present on the data bus.
  • the chip select means the addressed IC s that the data to be transferred are present on the data bus.
  • this data is then accepted and is available at the outputs.
  • this circuit section is consistently designed to comply with parameters such as electrical isolation, AC and DC loads on the a / b connection.
  • a transformer with a ratio of 1: 1 is used for electrical isolation. With a range of 400Hz-3.5kHz designed precisely for the telephone frequencies, this has a / b side
  • the electrical isolation is ensured by the relay, the separate windings of the transmitter and the optocoupler for the detection of a call signal.
  • the insulation voltage is at least 1.5KV.
  • the relay RE 1 In the idle state, the relay RE 1 has dropped out and the transformer TR 2 has been connected to the BUS interface 1 (see below). Only the optocoupler IC 1 is on the a / b line. The DC voltage present on the telephone side in the amount of approx. 40-65 volts is blocked by the capacitor C1.
  • the applied DC voltage reaches the processor board via the protective resistor R3 (10kOhm).
  • the expander input 8 is controlled by IC15 (PIN 18) via the signal line T2.
  • IC15 PIN 18
  • T2 the signal line
  • the signal line T1 is set to HIGH via the processor IC7. On the interface board, this causes transistor TR1 to turn on and the telephone relay RE1 picks up. The transmitter TR2 is now switched on. The resulting direct current load of 320hm speaks picking up a telephone handset.
  • the signal exchange can begin and is explained further below.
  • the signal line Tl is simply switched to LOW and the relay RE1 drops out again.
  • UCS first decides whether there is a need to establish a connection. This depends on the following factors:
  • the handset is ⁇ once removed 'by TRI on the interface board, the Re- relay RE1 controlled.
  • audible tone evaluation in which it is checked whether there is a permanent, intermittent or no dial tone.
  • the processor now switches on its pulse measurement input (PIN 18).
  • IC 17 is switched to input 4 (PIN2), to which the output of signal amplifier 2 from IC 6 is connected.
  • the incoming audio signals are decoupled via the transformer TR2 on the interface board, limited to permissible values with the Zener diodes D3 and D4 and fed into the NF node on the processor board (signal line: NF) via R5 and C5.
  • the processor IC 7 regulates the 100-stage digital potentiometer IC 5 up until measurable pulses appear at the pulse measurement input (PIN 18 of IC 7).
  • the now empirically determined value of the digital potentiometer is automatically increased again by 30% to eliminate tolerances and for reliable detection. Incidentally, this determined value is also used for the subsequent communication. With this, optimally and newly determined signal parameters are digitally set for each communication. Quiet and bad connections are therefore largely leveled out by the UCS itself. Incidentally, these gain values are also used in the table of all connection parameters so that the next time UKS can adjust itself much faster based on its own experience. i 24
  • UCS now outputs the tone sequence corresponding to the call number at a standardized interval of 100 msec per digit via the DTMF decoder IC 19 on the processor board.
  • BUS combi detectors connected to BUS 1 by e.g. an intercom connection on BUS 2 must not be influenced. It is also possible to forward an intercom connection on BUS 2 immediately via a telephone connection (if you are not at home).
  • the coupling and decoupling of the low-frequency signals is ensured via a transmitter of the same design as with the telephone interface.
  • the LF signal is transmitted symmetrically via the BUS.
  • External interference fields which act on both lines in common mode, are thus very effectively suppressed. This makes connections just as secure as in telephone technology. Cable lengths of many hundreds of meters can thus be bridged without any problems.
  • capacitors C3 and C4 or C9 and C10 ensure that no direct voltage can flow through the primary winding.
  • DC voltage in the range of 10-24 volts for the power supply during communication breaks and for battery backup for each UCS connected to this bus.
  • the voltage is fed to a bridge rectifier D7 via 2 chokes Drl and Dr2.
  • the chokes prevent AC signals> 20kHz (necessary for the call signal to 38kHz) from being short-circuited via the rectifier.
  • the field effect transistor TR4 as a variable resistor, is responsible for switching the supply on and off on the power side.
  • the use of an FET is ideal at this point because it can be switched practically without power between a volume resistance of 0.03Ohm and a few MegaOhm without significant power losses.
  • the incoming sound signals are output via the transformer TR2 and / or on the interface board, limited to permissible values with the Zener diodes D3 and D4 or D5 and D6 and via R5 and C5 or R6 and C6 fed to the NF node on the processor board (signal line: NF).
  • V24 The serial interface works in the normal V24 standard and enables the connection of all possible devices with serial interface (PC / Latop, printer, modem, etc.).
  • the processor With every cold start (restart or RESET), the processor first asks the interface whether data or programs should be loaded. This mode, which is defined internally in the hardware in the processor module, enables new programs to be loaded completely independently of the software. On the other hand, the downloading of data via this interface is e.g. also monitored by the software using a modem.
  • An LCD display always requires a negative operating voltage in order to be able to adjust the contrast. Most displays generate this voltage internally.
  • the contrast is adjusted with a setting regulator and, for many devices, with a potentiometer that is accessible from the outside (see laptops).
  • the processor has two separately controllable PWM channels (pulse width modulation). These PWM channels are used in a variety of ways in the UCS. A channel is used, among other things, to control the contrast in software using a variable frequency. A voltage multiplier of conventional circuit technology with the diodes D1 to D8 is located on the processor board. The negative open-circuit voltage of the RTS signal (- 7.5V on PIN24 and PIN29) present on the second and otherwise unused V24 interface of the IC 7 processor module is multiplied.
  • the time of the recharging processes of the capacitors C3, C7 and C13 determines the level of the voltage increase and is regulated by the PWM1 output.
  • An output frequency of 612Hz to 16kHz corresponds to a voltage swing of -5Volt to -18Volt. This enables ideal contrast control.
  • a total of 7 highly specialized ICs are used to control and amplify all analog levels. These are located on the processor board. There are 5 signal paths, of which 4 are digitally controllable:
  • STEREO BTL audio amplifiers (IC1 and IC6) are used as output amplifiers, in which both channels are used separately and have the following and decisive advantages for this application: 1. Symmetrical power outputs in bridge circuit, so high power stroke with low operating voltage and relatively high load resistance (40 ohms) and problem-free symmetrical coupling to the output transformers of the interfaces.
  • the LF signal inputs are interconnected and, together with the supply of the microphone signals (IC16) and the DTMF de / encoder (IC19), form the LF node of the circuit. All low levels converge at this node and are forwarded to the interfaces depending on the control of the digital potentiometers.
  • the digital potentiometers are used, which can be used to influence the level of each signal branch. Once the level values have been determined, they are stored in the UCS memory and serve as empirical values for the next communication, via whichever interface.
  • the pulse measurement input of the processor module IC 7 (PIN 18) is again used for this. Since all 4 inputs of the analog switch IC 17 are actually occupied, the input for the DCF clock module, which is used very rarely anyway (maximum 4 times a day and with every cold start), is controlled.
  • the clock module is switched to stand-by mode via the output expander IC14 (PIN6). Now the frequencies at the NF node can be read in via the activated input of IC17. On purpose, neither a repeater nor any pulse formers were used, although the processor's pulse measurement input actually requires perfect square wave signals.
  • Analog signals are frequency and amplitude modulated and usually sinusoidal. If at all, digital signals are only frequency-modulated and have a constant LOW / HIGH level.
  • an analog amplifier If an analog amplifier is overdriven, it also switches to the limiting mode and the sinusoidal half-waves approach a square-wave signal. Exactly this fact, namely that suddenly clearly identifiable pulses, regardless of frequency, are present and that during communication there is at least one signal amplifier output at the NF node corresponding to the interface to be controlled, is used to control the signal strength.
  • the override value determined in this way is calculated back to an average value by 30% and transmitted to the active digital potentiometer as a setting value.
  • the incoming measured frequencies also clearly show the processor whether there is an uncontrollable oscillation. It is a fact that wild vibrations can reach into the megahertz range.
  • the pulse measurement input can measure frequencies up to 156,200 Hz. From the fact that maximum user frequencies of 40 kHz are processed in the UCS analog range Frequencies> 80kHz are clearly detected as wild vibrations and can be effectively combated by re-regulating the currently active digital potentiometers.
  • a positive side effect is not only that it was again possible to do without any adjustment controls, but the signal and vibration resistance of the entire UCS can be checked at any time and automatically adjusted to the respective conditions.
  • This principle is also used in automatic feedback control.
  • a special IC (IC 16) is also used for the signal amplifier of the microphone. Not only has it been specially developed for connecting condenser microphones used in the UCS, it also has the ability to distinguish speech and background noise from one another by intelligent sound evaluation and to provide a corresponding control voltage.
  • the control signal at PIN 6 regulates transistor TR2, which in turn acts exclusively on both control inputs for the loudspeaker amplifier (IC 1).
  • the control is implemented according to the same principle as the vibration suppression described in point 5.2.8.2.
  • the threshold of the detection frequency is greatly reduced from> 80kHz to 4kHz and the pulses to be read in are not determined by the LF node, but as for the audible tone evaluation at output L8 at IC17 (PIN 2). This ensures a sufficient amplitude for the measurement input (now only the frequency is of interest).
  • the low-pass filter connected to the microphone amplifier IC 16 blocks all frequencies> 3.5 kHz picked up by the microphone. However, if higher frequencies with a constant spectrum can be measured at the NF node via the pulse measurement input, both speakers are immediately reduced by 1%.
  • the feedback control is implemented within 5 msec (max. 200 control steps in one second) and is therefore not considered to be disruptive, but on the contrary, very effective.
  • a software-based zeicon constant defines the time intervals in which an attempt is made to up-regulate (500 msec after the first feedback-free phase).
  • the system constantly adjusts to a stable value, which adjusts itself continuously depending on the level relationships of both communication partners.
  • the primary purpose of the radio clock is to ensure that the UCS always has an exact time of day, but also of the year. When the UCS is commissioned for the first time, it is extremely important to store this data. If automatic determination is not possible due to poor radio reception (relatively unlikely), the operator is asked to enter the current time and date manually.
  • the integrated radio clock significantly increases the information available to the operator.
  • An industrially manufactured radio clock module is used, which is no larger than a 1 Pfennig coin. This module supplies the received time signal signals at the TTL level, which are read in and decoded by the processor IC 7 via the pulse measurement input.
  • a special feature of the data log of the received time signal is that the seconds pulses are received continuously, but all other information such as day, t 35
  • Month, year, summer / winter time can only be completely transmitted within one minute. It follows that it is only possible to obtain complete information if the pulse measurement input of the processor is at least 1 and at most 2min. is constantly switched through to the clock module.
  • the input of the radio clock module is only controlled with second priority. This means that whenever there is 'nothing going on' at the other inputs, UCS reads the radio clock input. And if it is possible to read a complete time log due to the lack of communication, the internal clock and the date counter are automatically synchronized. This means that the synchronization intervals are fluid and can vary depending on the time
  • the entire circuitry of the IRLS is located on the matrix board. All light barriers are controlled by the 8 outputs of the expander IC 3 and by an output of the expander IC 2 (IR remote control). There are 8 IRLS for scanning the screen, 4 of which are arranged horizontally and 4 vertically. Only one half of the screen is scanned in order to have the possibility of being able to display further information in the other half of the screen even when the buttons that can be used are shown.
  • the 4 light barriers form a matrix, so that exactly 16 crossing points are created.
  • the 8 outputs switch on the receiver and associated (opposite) transmitter at the same time by controlling the output to HIGH.
  • the Ladeelko's Cl, 2,3 ... 11 now fulfill a double function.
  • the pulse generator IC 1 controls all the cathodes of the transmitter diodes alternately to ground and to + 5Volt in an interval of 35 ⁇ sec to 1.5msec.
  • a pulse current only flows through the transmitter, which is actually switched to HIGH by the expander IC 3. Only the resistance Rll of 10 ohms is used to limit the current.
  • the briefly flowing pulse current of approx. 300mA (average current consumption is only 3mA) is completely harmless for the transmitter diode as well as for the pulse generator IC and the expander IC, since the average duty cycle is only 1%.
  • the associated IR receiver is polarized in the blocking direction in the HIGH phase.
  • the incoming IR radiation triggers a modulation at its collector, which reaches the input of the special receiver IC (PIN 16 at IC 4).
  • An integrated active filter blocks all IR frequencies below 20kHz. This can be used to effectively suppress network-connected interferers (e.g. fluorescent tubes).
  • the automatic gain control (AGC) in IC 4 ensures that the signals in constant TTL level at PIN 9 are available for further processing. From there, they arrive at the pulse measurement input of the processor module IC 7 via the analog switch IC 17 on the processor board.
  • the software now decides which of the 8 light barriers should be queried based on the respective processing status and the graphic currently being displayed. So after that recognizable that only the just important light barriers (eg only 2 pieces for one button) are processed in order to save computing time.
  • 8 pulses per light barrier are read in successively via the pulse measurement input. These 8 values are searched for a value that occurs at least 4 times. Through integration, an approximate value is then calculated and compared with the expected experience from the last 3 queries.
  • the interruption is checked by querying the light barrier again. If the values match, the program finally reports an interruption.
  • the photo transistor TR14 is provided for reading signals from an IR remote control. After each polling cycle of the screen light barriers, the emitter of the receiver is briefly set to HIGH (PIN 19) via the expander IC 2 on the matrix board. Incoming IR pulses can now be read in and evaluated as in point 5.2.10.2.
  • the technology of the IR light barrier should not be discussed further here, since the circuit corresponds exactly to the pulse generator on the matrix board.
  • the 5 different transmission frequencies are achieved by connecting different resistors to Rl in parallel by pressing a button.
  • the value of Rl is 220k.
  • the pulse energy for the transmitter diode is at least 600mA with a maximum duty cycle of 2.5% (depending on Rl).
  • Displays of this size are currently operated exclusively with CFL lighting. These are small fluorescent tubes that are supplied with an alternating voltage of approx. 400-500 volts by means of an inverter.
  • the UCS also uses display lighting to provide a purely visual display of states. This has the great advantage that even at a distance at which the writing or graphic is not yet clearly recognizable (for example, also for spectacle wearers who are not wearing glasses), the type of message can be clearly displayed using optical signals. Another advantage is that deaf and dumb operators are also clearly alerted to an alarm situation.
  • THEFT alarm alternating lighting change from normal light to red light (full screen)
  • the processor has already parameterized the decoder for reception and expects DTMF tones. If a valid tone is received, it is converted into a number (0-15) in IC19, temporarily stored in an internal buffer and, if requested, transmitted to the processor via the data bus.
  • the processor Although it only makes sense for telephone operation, the processor always waits exactly 3 seconds after the call acceptance command and after receipt of a valid number. This relatively long time is necessary to also enable manual remote access via PIN code. Is in this time If the IC19 buffer is not a valid number, the processor hangs up again or aborts the log reading.
  • this 3-second grid also applies if 8 completely wrong numbers are transmitted. This prevents the valid PIN code from being tested due to the UKS being replaced early.
  • the second option is of course the normal transmission of speech. The only difference is that the digital potentiometers regulate the speakers.
  • Relay REl activated via signal line Tl. This practically establishes the connection to the telecommunications network. Now the numbers sent by the processor via the data bus can be output to pin 8 via the DTMF decoder / encoder IC19.
  • the signal goes from pin 8 to IC19 via a level adjustment R29 to the NF node.
  • the signal is amplified via a branch of the analog amplifier and thus reaches the output transformer TR2 of the interface board.
  • the resulting speech voltage on the primary side is high enough to trigger dialing processes via DTMF tones as well as to output data at the appropriate level.
  • the start of communication in the telephone network is started simply by activating the relay REl. However, all participants are permanently connected to the BUS interfaces. In addition, even DC voltage is transmitted via a BUS. i
  • the processor IC7 generates a call signal at 38kHz via PWM channel 0 and feeds it into the corresponding transmitter. Since the transformer has a 40-fold attenuation at this frequency compared to the normal LF signal (0.4-3.5 kHz), the gain is adjusted by approx. 60 dB with the associated digital potentiometer. This also ensures a sufficient level even when 255 participants are connected.
  • Another special feature of the transmission on BUS 2 is the simultaneous DC voltage supply.
  • the AC voltage call signal is superimposed on the DC voltage on the BUS.
  • the chokes DR1 and DR2 present in each UCS and other BUS subscribers (for example combi detectors) together with the capacitor C11 form a blocking circuit for the range of this ringing frequency. This prevents the signal from flowing away via the rectifier and the call signal reaches the transformer TR3 almost without attenuation.
  • This process is carried out by all UCSs connected to the 2D bus, so that the 2D bus is now free of DC voltage and thus ready for the transmission of low-frequency AC voltage.

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Alarm Systems (AREA)

Abstract

L'invention concerne un dispositif de sécurité pour la commande et/ou la surveillance d'espaces prédéterminés, comprenant un dispositif de commande connecté à un serveur, des détecteurs, un dispositif de signalisation, caractérisé en ce que les éléments de commande du serveur sont formés exclusivement par des symboles de touches virtuels représentés sur un écran, en ce que le dispositif de commande présente une mémoire interne, dans laquelle peuvent être mémorisés des numéros d'identification d'un dispositif de sécurité analogue, et dans laquelle est mémorisé un code identifiant sans ambiguïté le dispositif de sécurité lui-même, de manière à pouvoir effectuer, par le dispositif de commande, une modification automatique du seuil pour la délivrance de signalisations en fonction des conditions d'environnement détectées par les détecteurs, et en ce qu'il est prévu un dispositif de communication destiné à établir un contact avec des dispositifs de sécurité analogues.
PCT/EP1999/005444 1998-07-31 1999-07-30 Dispositif de securite pour la commande et/ou la surveillance d'espaces predetermines WO2000008840A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54153/99A AU5415399A (en) 1998-07-31 1999-07-30 Safety device for controlling and/or monitoring defined rooms

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998134719 DE19834719A1 (de) 1998-07-31 1998-07-31 Sicherheitsvorrichtung zur Steuerung und/oder Überwachung von vorbestimmten Räumen
DE19834719.7 1998-07-31

Publications (1)

Publication Number Publication Date
WO2000008840A1 true WO2000008840A1 (fr) 2000-02-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/005444 WO2000008840A1 (fr) 1998-07-31 1999-07-30 Dispositif de securite pour la commande et/ou la surveillance d'espaces predetermines

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AU (1) AU5415399A (fr)
DE (1) DE19834719A1 (fr)
WO (1) WO2000008840A1 (fr)

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DE202017006423U1 (de) 2017-12-13 2018-04-03 Herbert Bäumchen Smart Home Haustür

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DE10004866A1 (de) * 2000-02-04 2001-08-09 S. Siedle & Soehne,Telefon- Und Telegrafenwerke Stiftung & Co Türanlage
DE10004864A1 (de) * 2000-02-04 2001-08-09 S. Siedle & Soehne,Telefon- Und Telegrafenwerke Stiftung & Co Türanlage
DE10007557A1 (de) * 2000-02-18 2001-09-06 S. Siedle & Soehne,Telefon- Und Telegrafenwerke Stiftung & Co Türanlage
DE10100082C1 (de) * 2001-01-04 2002-08-29 Zwick Harry Steuerungs- und/oder Überwachungseinrichtung mit einem Schaltgerät
ITTO20020270A1 (it) * 2002-03-27 2003-09-29 Urmet Domus S P A Apparecchiatura di controllo e monitoraggio remoto di funzioni,particolarmente per apparecchi domestici.
EP1720195B1 (fr) 2005-05-06 2012-12-12 HÜTTINGER Elektronik GmbH + Co. KG Système pour la suppression d'arcs

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EP0559270A1 (fr) * 1992-03-02 1993-09-08 Koninklijke Philips Electronics N.V. Système d'accès pour divers environnements fonctionnels associés à une série de lieux
US5297252A (en) * 1991-05-07 1994-03-22 Don Becker Color graphics terminal for monitoring an alarm system

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US5297252A (en) * 1991-05-07 1994-03-22 Don Becker Color graphics terminal for monitoring an alarm system
EP0559270A1 (fr) * 1992-03-02 1993-09-08 Koninklijke Philips Electronics N.V. Système d'accès pour divers environnements fonctionnels associés à une série de lieux

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017006423U1 (de) 2017-12-13 2018-04-03 Herbert Bäumchen Smart Home Haustür

Also Published As

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AU5415399A (en) 2000-02-28
DE19834719A1 (de) 2000-02-10

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