Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
  • B66B5/0006—Monitoring devices or performance analysers
  • B66B5/0018—Devices monitoring the operating condition of the elevator system
  • B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B1/00—Control systems of elevators in general
  • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
  • B66B1/3415—Control system configuration and the data transmission or communication within the control system
  • B66B1/3446—Data transmission or communication within the control system
  • B66B1/3461—Data transmission or communication within the control system between the elevator control system and remote or mobile stations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B19/00—Mining-hoist operation
  • B66B19/007—Mining-hoist operation method for modernisation of elevators
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
  • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks

Definitions

• the invention relates to a device for connecting a control device of a passenger conveyor system, a system for transmitting the status of a control device of a passenger conveyor system, and a method for retrofitting a passenger conveyor system according to the preamble of the independent claims.
• JP 2002197215 a device is known which picks up the status of an elevator system by means of a device from the system in order to then transmit this status to a remote unit.
• the object is achieved by a device for connecting a control device of a passenger conveyor system, a system for transmitting the status of a control device of a passenger conveyor system, and a method for retrofitting a passenger conveyor system according to the independent claims.
• the device for connecting a control device of a passenger conveyor system to a communication unit, in particular a communication unit remote from the device, for transmitting data to an entity remote from the passenger conveyor system comprises at least one detection unit for detecting a first physical variable of the control device.
• the passenger conveyor system is an elevator system.
• the communication unit is an Internet-capable communication unit.
• the device further comprises an evaluation unit for generating a first electrical signal as a function of the first physical variable.
• the device also includes a first interface for connecting the device to the communication unit. The first electrical signal can be transmitted to the communication unit via the first interface.
• the detection unit is designed such that an electrical resistance and / or an electrical voltage and / or an optical state and / or an acoustic signal from the control device can be detected as the first physical variable.
• control device With such a device, physical quantities of the control device can be picked up and transmitted to a communication unit. This makes it possible to detect a large number of different physical variables of the control device and to communicate these via the communication unit to an entity remote from the passenger transport system. In this way, the state of the control device can be determined by this entity without having to visit the passenger transport system.
• the device according to the invention makes it possible to detect a large number of physical quantities.
• the device can thus be used for a large number of control devices. With such a device, all older, common control devices can be covered. This allows existing systems to be easily retrofitted.
• the service technician can be equipped with a type of device the retrofitting of a variety of different systems.
• the communication unit is to be understood above and below as a communication unit which allows communication over long distances.
• the communication unit is preferably an Internet-capable communication unit.
• the communication unit is preferably a communication unit separated from the device for connecting a control device of a passenger transport system to a communication unit.
• the communication unit is part of the passenger transportation system.
• the communication unit is independent of the device for connecting a control device of a passenger conveyor system to the communication unit. It can be the case that the communication unit was subsequently integrated into the passenger conveyor system before the device was integrated. With the subsequent attachment of the device it is made possible that the control device can be more comprehensively connected to the communication unit.
• Detached means above and below that the object described with detached is not part of the object from which it is detached.
• a communication unit that is separate from the device is not part of the device. This has the advantage that the communication unit is completely independent of the device.
• a passenger conveyor system can already include a communication unit. Such a system can then be retrofitted with the device without creating a redundancy of the communication unit.
• An optical state is above and below an optical appearance that can have at least two different designs.
• An optical condition is, for example, a status LED of a control device, which lights up green during operation and no longer lights up in the event of a failure.
• Other optical states are also possible.
• An optical condition can also be given by a large number of status displays.
• an optical state can comprise a plurality of status LEDs, each of the status LEDs being able to assume two states, for example, the states being a first color and a second color, for example.
• An acoustic signal is to be understood above and below as an acoustic tone that contains information.
• the acoustic signal can also assume at least two states.
• the first state of the acoustic signal can be the absence of an acoustic tone.
• the second state of the acoustic signal can be, for example, the constant sounding of an acoustic tone with a constant frequency.
• the acoustic signal can, for example, also be characterized by a first state in which no acoustic tone sounds, and a second state in which an acoustic tone sounds at regular intervals. Further embodiments of such an acoustic signal are well known to those skilled in the art.
• an electrical resistance is also to be understood as a zero-ohmic connection, i.e. an electrical short circuit.
• the physical size of the electrical resistance can in turn assume at least two states, with a first state being characterized, for example, by a short circuit, i.e. a zero-ohmic electrical connection, and a second state, for example, characterized by a high-ohmic, i.e. missing electrical connection.
• the physical quantity of electrical voltage should be understood above and below in such a way that it can assume at least two states. For example, in a first state, a zero voltage can characterize the physical quantity of electrical voltage. In a second state, the electrical voltage can be 5 V, for example.
• An interface is to be understood above and below in such a way that it enables contacting, that is to say tapping of an electrical signal.
• an interface does not just comprise a plug.
• An interface can be implemented using a large number of different physical connection elements, that is to say as clamping, screw and plug connections of all types.
• the first electrical signal is to be understood above and below as a signal which can assume at least two states.
• a first state of the first electrical signal can for example be the absence of a voltage, that is to say 0 V voltage be.
• the second state of the first electrical signal can, for example, be a specific voltage, that is to say 5 V, for example.
• the electrical signal can also be formed by two different resistance values.
• the electrical signal can be a closed line (0 ohm resistance) in a first state and an open line (very high resistance) in a second state.
• the evaluation unit is designed so that it can distinguish between a first state and a second state of the first physical variable.
• the first state signals the functionality of the passenger transport system.
• the second state signals the lack of functionality of the passenger conveyor system.
• the device thus enables these two states to be detected and thus makes it possible to know whether the control device is still functioning. This is very banal and extremely important information for the service technician.
• this information can be picked up from the passenger transport system and then forwarded to a communication unit.
• the communication unit can then transmit this information to an entity outside the passenger transport system and thus also make this information available at this remote entity.
• the service technician can obtain an initial picture of the system based on the transmitted status before going into the field. This happens in the same way as providing an overview on site when the service technician opens the control cabinet in which the control device is housed in order to see whether the control device is still working.
• the mundane information consisting of a first state (system functional) and a second state (system no longer functional) is often sufficient to obtain an initial overview of the possible sources of error.
• the functionality of the passenger conveyor system is above and below the functionality of the control device.
• the first state of the first physical variable signals the functionality of the control device, while the second state indicates that it is missing Functionality of the control device signals.
• the evaluation unit is designed such that the first electrical signal can assume a first state or a second state.
• the evaluation unit has a switch. With this switch, the evaluation unit can be switched from a first operating mode to a second operating mode. The first electrical signal is inverted in the second operating mode compared to the first operating mode.
• the evaluation unit with the switch thus enables the first electrical signal to be transmitted to the communication unit to be inverted. This makes it possible to ensure that the states of the first physical quantity are correctly understood by the communication unit. For example, if the first state of the physical variable signals the functionality of the system, the switch can be used to ensure that the electrical signal, which is generated based on the state of this physical variable, is recognized by the communication unit as being "functional" becomes. Depending on the coding of the first physical variable, that is to say depending on the control device, this assignment can be wrong. The switch enables this assignment to be reversed. This ensures that a physical variable signaling the functionality of the control device is correctly understood by the communication unit. This is necessary in particular since the physical variable can be present in a large number of forms on the control device.
• an optical signal can, for example, in an off state, i.e. when no optical signal is present, indicate the functionality in a control device and indicate the opposite state, namely the lack of functionality of the control device, in another control device. So that this variance can be taken into account, the switch for inverting the first electrical signal is provided.
• the term “invert” means above and below that an electrical signal, which can assume two states, is changed in the case of the first state through the inversion to the second state and vice versa in the case of the second state through the inversion to the first state becomes.
• the evaluation unit is designed in such a way that when the first state of the first physical variable is detected, the first electrical signal is generated in the first state, the evaluation unit generating the first electrical signal when the first state of the first physical variable is detected during operation in the second operating mode Signal generated in the second state. In the second operating mode, the evaluation unit generates the first electrical signal in the first state when the second state of the first physical variable is detected.
• the device also has a second and a third interface.
• the second interface is electrically connected to the third interface in such a way that an electrical signal which is present at one of these interfaces is also available at the other of these interfaces (second and third interface).
• a signal from the communication unit can be passed on unchanged to the control device by the device.
• the second and third interfaces can be used to create an input and an output on the device with which an electrical signal can easily be looped through. In one embodiment, this signal can be tapped and analyzed in the device, but without the signal being changed in the process.
• the device can be connected to a voltage source of the communication unit.
• the voltage source of the communication unit can thus be used to power the device.
• the voltage source can preferably be connected to the device via the first interface.
• the device comprises a further interface.
• the further interface is designed to connect the device to at least one further device, as described above and below.
• Such an interface enables the connection and thus the use of several devices.
• the use of several devices makes it possible to monitor several physical quantities of the control device.
• a first device can be used to monitor a first physical variable in the form of an optical state and a second device can be used to monitor the first physical variable in the form of an electrical resistance.
• the first electrical signal generated on the basis of the physical size of one of these devices can be transmitted to the other device through the further interface.
• the further interface thus allows several devices to be cascaded.
• the construction of a more powerful device which enables the monitoring of several physical quantities, consisting of several simple devices can be made possible.
• a complex device a large number of the very simply designed devices described above and below are connected to one another, thus achieving the functionality of a complex device.
• the device is designed in such a way that, during operation, the first electrical signal of the further device connected via the further interface is ORed or ANDed with the first electrical signal of the device.
• the signal resulting from the OR or AND link can be transmitted to the communication unit via the first interface.
• a number of physical quantities can be monitored.
• the OR-linked signal thus indicates a failure of the system if at least one of the physical variables indicates such a failure. Only the OR-linked variable is then forwarded to the communication unit.
• This has the advantage that the communication unit only needs to be connected to one of the two devices and the connection can be made easily (no communication bus).
• the merging of the different devices that detect different physical quantities already takes place in the device itself, so that only one of these devices then has to be connected to the communication unit.
• a U D link can be selected instead of the OR link.
• Further logical links and a possibility to choose between these logical links are also possible and well known to the person skilled in the art.
• a system for transmitting a status of a control device of a passenger conveyor system also leads to the solution of the problem.
• the system comprises a communication unit for transmitting data and an entity that is separate from the passenger transport system.
• the communication unit is Internet-capable.
• the system further comprises at least one device as described above and below.
• the first device is connected to the communication unit via the first interface.
• Such a system can be installed in existing passenger transportation systems. This system then enables the states of the passenger transport system to be recorded and to communicate the recorded states to an entity remote from the passenger transport system. The system thus makes it possible to connect an existing passenger transport system to an entity that is present at another location and thus to make the determined states of this passenger conveyor system available to this entity.
• An entity separated from the passenger conveyor system means above and below the one located outside the system, that is, for example, an entity located outside the building in which the passenger conveyor system is used.
• the remote instance can in particular be a computer infrastructure.
• Such a computer infrastructure can, for example, be a server device and can be referred to as a cloud.
• the communication unit as described above and below is preferred an Internet-enabled communication unit, i.e. a communication unit which uses an Internet protocol to communicate with other participants in the Internet.
• the communication unit is characterized by the fact that it enables transmission over long distances. In particular, that it enables the transmission of information from the passenger transport system. In particular, the communication unit enables the transmission of data to entities outside the building in which the passenger transport system is located.
• the system further comprises a second device.
• the first device is connected to the further interface of the second device via the further interface.
• the first device and the second device are identical.
• the detection unit of the first device is provided in a particularly preferred embodiment for detecting a first physical variable of the control device from the list comprising an electrical resistance, an electrical voltage, an optical signal of the control device or an acoustic signal of the control device.
• the detection unit of the second device is provided in a particularly preferred embodiment for detecting a second physical variable different from the first physical variable from the list comprising an electrical resistance, an electrical voltage, an optical state of the control device or an acoustic signal of the control device .
• Such a system enables the detection of two identical or, in the particularly preferred embodiment, two different physical quantities.
• the system enables this detection through the dual use of a device as described above and below.
• the system further comprises a third device, as described above and below.
• the third device is connected to the further interface of the first and the second device via the further interface.
• the detection unit of the third device is provided for detecting an optical signal from the control device. This embodiment makes it possible to detect three identical or also three different physical variables and to transfer them to a communication unit.
• a type of bus is created via the further interface of the first, second and third device, in which the first electrical signals of the devices are brought together. This enables the first electrical signal from the first device to be present on all other devices.
• the first electrical signal of the second device and the first electrical signal of the third device are also available at the other two devices.
• each device analyzes all the first electrical signals as a whole, to connect them and then to forward them to the communication unit.
• This enables only one of the devices to be connected to the communication unit.
• the connection from the device to the communication unit can thus be carried out very easily, that is to say with a few electrical connections, that is to say, for example, with a forward and return conductor.
• the particularly preferred embodiment enables, for example, the first device to detect an electrical voltage as the first physical variable and the second device, for example, to detect an electrical resistance as the first physical variable, the third device detecting an optical state as the first physical variable. With this particularly preferred system, a large number of different physical quantities can be detected, analyzed and transmitted.
• the system is connected to the second interface of the first device with the communication unit.
• the third interface of the first device is designed for connection to the control device.
• the first interface and the second interface are formed in a connection element.
• Such a system enables a control output, at which a control signal from the communication unit can be tapped, to be transmitted via the device to the control device of the passenger transport system.
• only a single connection between the device and the communication unit is necessary due to the implementation of the first interface and the second interface in one connection element. This makes it possible in particular to connect the device to the communication unit with a minimum of work, in that one connection element of the device is connected to a connection element of the communication unit, that is to say, for example, is attached.
• a command which is transmitted from the communication unit via the control output to the second interface and unchanged via the third interface to the control device during operation can for example be a reset command which is received by the communication unit from a remote entity and then is forwarded via the device to the control device of the passenger conveyor system to restart the control device.
• a method for retrofitting a motbe conveyor system also leads.
• the method comprises the step of attaching at least one device, as described above and below.
• the method preferably also includes the step of attaching a communication unit, in particular an Internet-capable communication unit, for transmitting data to an entity which is remote from the passenger transport system and which can be connected to the device.
• a communication unit in particular an Internet-capable communication unit
• it involves a method for retrofitting a passenger conveyor system which is not Internet-capable.
• it involves a method for retrofitting a passenger transport system, which is connected to the building management with parallel wiring.
• a particularly preferred embodiment involves a method for retrofitting an elevator system.
• Attaching at least one device can previously and below include attaching the device in the passenger conveyor system, and connecting the device to the control device and the communication unit.
• the communication unit is already present in certain systems, so that the process step of attaching the communication unit is not necessary. If there is no communication unit, the step of attaching a communication unit becomes necessary.
• Such a method enables data, in particular data on the functionality of the passenger transportation system, in particular the functionality of the Steuervorrich device, from old passenger transportation systems that do not have any means of communication Communication with remote entities, that is, does not include any Internet-capable communication units, to connect to a remote entity and then to transmit the data to the remote entity.
• old passenger transport systems can be modernized using the process, so that information on functionality can also be collected, analyzed and accessed from these systems in a central instance that is separate from the system.
• Internet-capable means that the passenger transport system or also the communication unit can be connected to the Internet and can therefore communicate over long distances through the Internet.
• the method comprises steps for transmitting an operating state of a control device of the passenger transportation system to an entity remote from the passenger transportation system. This includes the step
• the method comprises the step of continuously monitoring this physical variable.
• the first physical variable is monitored with a device as described above and below. Continue covering the step
• Such a method for retrofitting a passenger transportation system makes it possible to monitor the system after the retrofitting and to make the functionality of the control device available outside the system. This enables the maintenance of the system to be better prepared and carried out more efficiently.
• the method further comprises receiving a reset command by the communication unit and generating a reset signal for the control device of the passenger conveyor system.
• the method makes it possible to initiate a reset, i.e. restart, of this control device remotely when a non-functional control is detected by sending a reset signal via the communication unit, which is then forwarded to the control device.
• this forwarding takes place from the communication unit to the control device via the second and third interface of the device, as described above and in the following.
• the device enables the reset command or the reset signal to be passed to the control device via the already existing connection (first and second interface) of the device to the communication unit without changing it. This enables fem resets without the need for a further connection to the communication unit.
• FIG. 1 a schematic representation of a first embodiment of a device according to the invention.
• FIG. 4 the device known from FIG. 1 in a further configuration in which it is connected differently to the passenger conveyor system compared to FIG. 1 in order to detect a different physical variable.
• Fig. 5 the device from Fig. 1, which according to the invention is connected to the passenger transport system.
• FIG. 6 a schematic representation of a further exemplary embodiment of a device according to the invention.
• FIG. 7 the device from FIG. 6 in connection with the passenger conveyor system.
• FIG. 8 shows a passenger conveyor system with three identically designed devices according to the embodiment from FIG. 1, but with a different configuration in relation to the connections to the passenger conveyor system for the detection of three different physical quantities and a device according to the embodiment of FIG. 6, as well as a communication unit.
• the device 1 shows a device 1.
• the device 1 comprises a detection unit 10 and an evaluation unit 12, as well as several interfaces 14, 16, 18, 20 for connecting the device.
• the device further comprises a switch 22 and a status display 30.
• the detection unit 10 is designed in the form of an interface with three pins.
• the supply 28 of the device 1 can be led out of the device 1 through a first pin.
• the second pin connects a first input of the evaluation unit 12 to the detection unit 10, the third pin connecting a second input of the evaluation unit 12 to the detection unit 10.
• the evaluation unit 12 comprises a comparator and an inverter which can be actuated by the switch 22.
• the comparator is connected to the second and third pin of the detection unit 10.
• the evaluation unit 12 closes or opens a switch integrated in the evaluation unit, so that a circuit that contains this switch is either closed or interrupted.
• the two connections of this switch are led out of the evaluation unit 12.
• the interfaces 14, 16, 18, 20 are designed as follows in this exemplary embodiment:
• the first interface 14 comprises four pins for connecting the device 1.
• the second interface 16 comprises two pins.
• the first interface 14 and the second interface 16 are formed in a connection element 26, which in this embodiment is designed as a plug.
• the third interface 18 comprises two pins.
• the two pins of the second interface 16 are connected directly to the two pins of the third interface 18 inside the device.
• the further interface 20 comprises three pins.
• the first pin of the first interface 14 is connected to the third pin of the first interface 14 and the first pin of the further interface 20.
• the second pin of the first interface 14 is connected to the second pin of the further interface 20, as well as to the first connection of the switch of the execution unit 12 led out of the evaluation unit 12.
• the fourth pin of the first interface 14 is connected to the third pin of the further interface 20 and to the second connection of the switch present in the evaluation unit 12, which is led out of the evaluation unit 12.
• the status display 30 is connected to the output of the comparator.
• FIG. 2 shows a system 2.
• the system 2 consists of a device 1, as shown in FIG. 1, and a communication unit 8.
• the communication unit 8 comprises a voltage source 24.
• the voltage source 24 consists of the communication unit 8 out and connected to the device 1 via the first and second pin of the first interface 14 of the device 1.
• the communication unit 8 has a digital input 40 and two pins which allow the digital input 40 to be contacted. These two pins are designed as the second and third pin of the communication unit 8.
• the communication unit 8 further comprises a digital output 42. This digital output can be tapped via two pins, namely the fifth and sixth pin of the communication unit 8 outside the communication unit 8.
• the digital input is connected to the third and fourth pin of the first interface 14.
• the digital output 42 is connected to the second interface 16 of the device 1 via the fifth and sixth pin of the communication unit 8.
• FIG. 3 shows the above-described system 2 after it has been connected to a passenger transport system 6 or the control device 4 of the system 6 by a retrofitting process according to the invention.
• a so-called cold switch signal output of the control device is detected by the detection unit 10 of the device 1 of the system 2 and the physical size of an electrical resistor 32 is thus detected by the system 2.
• the first pin and the second pin of the detection unit 10 are connected to the signal output 32 of the control device 4.
• the control device 4 also includes a reset input 38, this input 38 being connected to the third interface 18 of the device 1.
• a reset command of the digital output 42 of the communication unit 8 is passed through the device 1, that is to say through the second interface 16 and third interface 18, to the control device 4.
• the current flows via the fourth pin of the first interface 14 into the device 1 and then via the switch of the comparator of the detection unit 10 and the second pin of the first interface 14 back into the voltage source 24 of the communication unit 8.
• One such Current flow is detected by communication unit 8, for example, as an error signal (current flow is not functional, no current flow is functional).
• the inverter which is part of the evaluation unit 12 and can be switched on or off by the switch 22, now enables both a normally open cold switch (open cold switch if the control device is functional) and a normally closed one Cold switch (closed cold switch if the control device is functional) to be connected to the same communication unit.
• FIG. 4 shows a device 1 according to the exemplary embodiment of FIG. 1, as well as a control device 4 of a passenger transportation system 6.
• the control device 4 has a hot switch 34 (see FIG. 3).
• the hot switch 34 leads to a first physical variable at the output of the control device 4, which is voltage-free in a first state, that is, a 0 V voltage, and in a second state, for example, to a positive DC voltage, for example 5 V.
• the device 1 from FIG. 1 is connected to the device 4 via the second and third pin of the detection unit 10 in this embodiment, for example.
• the inputs of the comparator of the evaluation unit 12 are both connected to the control device, that is to say to the voltage source of the hot switch output.
• the feed 28 of the detection unit is not used in this configuration.
• a first state and a second state can thus the electrical voltage can be detected, whereby the conversion of the information can be inverted by the inverter of the evaluation unit 12 so that the communication unit 8 independent of the execution of the hot switch (0 V voltage can be functional in one embodiment of the control device and in another Embodiment signal a non-functional control device) can be executed.
• the device 1 is identical to the device 1 from FIG. 1.
• FIG. 5 shows, similar to FIG. 4, an exemplary embodiment according to the invention of the device 1 shown in FIG. 1 in connection with a control device 4 of a passenger conveyor system.
• the control device 4 has a signal output which is connected to the safety circuit 34 of the passenger conveyor system.
• the safety circuit 34 is a series connection of two switches between a voltage source and earth. Each of these switches represents a safety-relevant function of the passenger conveyor system. If both switches are closed, the voltage of the voltage source is present at the signal output. When the upper switch is opened, 0 V is applied to the output. When the switch below is opened, the supply voltage can be detected at the output.
• this embodiment is identical to the embodiment from FIG. 4.
• a voltage is detected as the first physical variable (that is, a hot switch).
• Only the second and third pin of the detection unit 10 are connected to the control device 4.
• the feed 28 at pin 1 of the detection unit 10 is not needed.
• the device 1 comprises a detection unit 10 which comprises a photoelectric sensor. This is connected to the evaluation unit 12 via a converter.
• the evaluation unit 12 comprises a processor 44 instead of the comparator.
• the output of the processor 44 is in turn connected to a switch so that the processor can open or close this switch.
• the structure of the device 1 is otherwise identical to the device 1 according to the first exemplary embodiment from FIG. 1.
• the control device of the passenger conveyor system has an LED 36 which signals the status of the control device.
• a green light on the LED means a functional control device, while a red light on the LED signals a non-functional control device.
• the first physical variable of the control device is an optical state, which can assume two states. This first physical variable of the control device 4 is detected by the detection unit 10 (photo electrical sensor) of the device 1 and processed by the evaluation unit 12 of the device 1 and then output as a simple binary signal at the output of the evaluation unit 12 in the form of an open or closed switch .
• the device 1 enables the detection of the physical quantity of the optical state of the control device 4 and a conversion, so that the communication unit 8 can process the state of this physical quantity (functional or non-functional control device), i.e. transmit it to a remote entity.
• the communication unit 8 can process the state of this physical quantity (functional or non-functional control device), i.e. transmit it to a remote entity.
• the adaptation of the control device signaling to the logic of the communication unit takes place by the CPU.
• Fig. 8 shows a system 2 consisting of four devices 1 and a communication unit 8, the system 2 being connected to a control device 4 of a passenger conveyor system.
• the control device 4 comprises four signaling outputs, that is to say outputs indicating the operating state. These outputs signal different operating states through different physical quantities, each of these physical quantities being able to change from an okay state to an out of operation state, that is to say from a first to a second state.
• Three of the four devices 1 are designed identically, namely according to the rougesbei game from FIG. 1.
• the fourth device 1 is designed according to the embodiment of FIG.
• the device 1 shown at the top is connected to the control device 4 in such a way that it can detect the physical variable electrical resistance, that is to say open or closed switches (cold switch).
• the two middle devices 1 are connected to the control device 4 in such a way that they can distinguish a zero voltage from a positive voltage (hot switch).
• One of these two devices 1 is connected to a classic hot switch status output 34.1 of the Steuervorrich device 4, while other device 1 is connected to the safety circuit 34.2 of the Passenger conveyor is connected.
• the fourth, lowermost device 1 detects a state which is optically signaled by the control device 4.
• the four devices 1 are connected to one another like a bus via the further interface 20.
• the top device 1 is connected to the communication unit 8, as described above. Now, based on the detected first physical quantity, one of the
• Evaluation units 12 of the devices 1 switch the switch, this leads to a current flow as described above, which is then evaluated by the communication unit 8 as a non-functional control device.
• the various devices 1 are OR-linked to one another, the result of the OR link being passed to the communication unit 8.
• the signal coding can be adapted to the physical variable so that the respective switch of the evaluation unit 12 actually only opens when the physical variable signals a non-functional control device becomes.
• the plurality of devices 1, which are designed as simple devices 1, as described above, make it possible to detect several un different physical variables of the control device, to adapt them through the inverter, to connect them OR and then to one simple two-wire connection to the communication unit 8 as a simple digital on or off signal.

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• Engineering & Computer Science (AREA)
• Automation & Control Theory (AREA)
• Computer Networks & Wireless Communication (AREA)
• Escalators And Moving Walkways (AREA)
• Arrangements For Transmission Of Measured Signals (AREA)
• Control Of Conveyors (AREA)
• Indicating And Signalling Devices For Elevators (AREA)

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• 2020
  • 2020-06-19 EP EP20733292.5A patent/EP3986822A1/de active Pending
  • 2020-06-19 US US17/596,577 patent/US20220234866A1/en active Pending
  • 2020-06-19 BR BR112021025510A patent/BR112021025510A2/pt unknown
  • 2020-06-19 WO PCT/EP2020/067151 patent/WO2020254605A1/de active Application Filing
  • 2020-06-19 CN CN202080042566.4A patent/CN113939467B/zh active Active

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