Search

CN-121986365-A - Fire control apparatus

CN121986365ACN 121986365 ACN121986365 ACN 121986365ACN-121986365-A

Abstract

Fire control device, in particular fire alarm device or fire fighting device, comprising at least two participants, wherein each of the participants has at least one control input and at least one control output and two communication interfaces, and wherein the participants form an endless closed serial communication chain via their respective communication interfaces.

Inventors

  • Martin Frisner

Assignees

  • 弗格泰布兰舒尔茨有限公司

Dates

Publication Date
20260505
Application Date
20240902
Priority Date
20230927

Claims (20)

  1. 1. Fire control device, in particular fire alarm device or fire fighting device, comprising At least two participants, wherein Each of the participants has at least one control input and at least one control output and two communication interfaces, and wherein The participants form a serial communication chain closed in a ring by means of their respective communication interfaces.
  2. 2. The fire control apparatus according to claim 1, It is characterized in that the method comprises the steps of, Two of the participants are connected to each other via a point-to-point connection.
  3. 3. The fire control apparatus according to claim 1 or 2, It is characterized in that the method comprises the steps of, -Storing an explicit identification in each of the participants.
  4. 4. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, The participant first sends a first message comprising at least an explicit identification and application data on the first communication interface, and -The participant monitors the reception of the first message on the second communication interface.
  5. 5. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, Upon successful reception of the first message on the second communication interface, the participant transmits a second message containing at least the explicit identification and the application data on the second communication interface, and -The participant monitors the reception of the second message on the first communication interface.
  6. 6. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, -The participant transmitting an end message on at least one of the communication interfaces upon successful reception of the first message on the second communication interface and/or successful reception of the second message on the first communication interface.
  7. 7. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, -After a defined waiting time, if the first message is not received on the second communication interface, the participant sends a failure message containing at least an explicit identification and application data on the second communication interface.
  8. 8. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, -After a defined waiting time, if the first message is not received on the second communication interface, the participant sends a second message containing at least an explicit identification and application data on the second communication interface.
  9. 9. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, -The participant performs the steps according to any of claims 4 to 8 upon receipt of an end message.
  10. 10. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, The first message and the second message have the same application data.
  11. 11. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, The application data depends on the signal at the control input.
  12. 12. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, Explicit identification of the participants is numbered consecutively.
  13. 13. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, The participant whose explicit identity has the lowest value among all participant identities is defined as the initiating participant.
  14. 14. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, -The initiating participant starts a communication in the communication chain according to any of claims 4 to 8.
  15. 15. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, Each of the participants evaluates each message received at the first and/or second communication interface.
  16. 16. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, -The participants along the communication chain receive all messages on the first communication interface and forward them on the second communication interface.
  17. 17. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, One of the participants, in particular the initiating participant, sends the configuration file over the communication chain.
  18. 18. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, -Each of the participants storing said profile.
  19. 19. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, The configuration file has an explicit serial number.
  20. 20. The fire control apparatus according to any one of the preceding claims, It is characterized in that the method comprises the steps of, -Each of the participants evaluating the application data of the received message according to the configuration file and triggering an action at the control output according to said evaluation.

Description

Fire control apparatus Technical Field The present invention relates to a fire control device, in particular a fire alarm device or a fire fighting device, and to a method for operating such a device. Background Fire alarm systems or fire protection systems of today always have a fire alarm central unit (Brandmeldezentrale, BMZ). Such a fire alarm central device is used as a central contact point for fire alarm devices or fire fighting devices. The fire alarm central unit collects all information originating from the fire alarm devices, in particular information about the fire event. The fire alarm central unit collects all information originating from the fire fighting equipment and controls the actuators of the fire fighting equipment. If desired, the fire alarm central unit may activate an actuator of the fire protection apparatus, for example, in accordance with the reported fire event. In order to take corresponding actions, in particular to extinguish a fire, in response to a reported fire event, a configuration file, for example a linked list, is stored in the fire alarm central unit. The profile specifies which events will cause which actions. For example, the profile may define which actuators in which areas are activated to extinguish a fire when a particular fire detector signals a particular fire event. A link may be established between the fire detector and an actuator, such as a zone valve, via a profile. If a fire event occurs at a particular fire detector, only defined fire extinguishing areas may be activated, for example. Messages received by the fire alarm central unit may be communicated to higher level systems by so-called trunking or serial communication. In the configuration file, the link between the fire event and the action is typically fixed preset. The configuration file of the fire alarm central device is a complex, highly specialized file which contains, inter alia, a large number of interdependencies between the sensor and the actuator. Furthermore, the configuration files are typically based on proprietary protocols and cannot be temporarily altered by the user. This makes the fire alarm central device static, and changes in the topology of the fire alarm device are always accompanied by complex reprogramming of the fire alarm device. The requirements for fault reliability in the fire-fighting field are very high. The fire alarm central unit acts as a central decision-making mechanism for activating fire protection measures, representing a so-called single point of failure (Single Point Of Failure, SPOF). If the single point of failure fails, the entire fire apparatus will fail. In the field of safety critical infrastructure such as fire protection, there are different safety requirement levels (safety integrity level SAFETY INTEGRITY LEVEL, SIL). These safety requirements levels specify, inter alia, the limits of the probability of a system failure over time. This so-called FIT value (Failure In Time) specifies the number of components that are allowed to fail within 10 9 hours. There are different safety requirement levels SIL1, SIL2, SIL3 and SIL4. For SIL1, the FIT value must be < 10,000, for SIL2, the FIT value must be < 1,000, for SIL3, the FIT value must be < 100, and for SIL4, the FIT value must be < 10. This means that in a system meeting the SIL3 safety requirement level, only 100 components may fail within 10 9 hours. If a system is constructed that includes a fire alarm central unit, sensors, such as fire detectors, and actuators, such as zone valves, or nozzles, the FIT values for the individual components will add. This will soon result in a FIT value of >1,000 being reached, so that the SIL requirement is no longer fulfilled. For example, if the FIT value for each component is 100, then 10 devices have reached a FIT value of 1,000. In particular for applications in the field of traffic technology, such as railway technology, the safety requirements for fire protection are determined by SIL 2. The maximum FIT value thus produced is 1,000. This FIT value of 1,000 is shared by both fire and rail vehicles. This leaves only a FIT value of 500 available for the fire protection system in the rail vehicle. This means that in order to meet the SIL 2 standard, the maximum FIT value of the corresponding fire protection system can only be 500, i.e. there can only be up to 5 components according to the above calculation. This is disadvantageous, for example, for equipping trains and the like, since the fire protection system must be dimensioned very finely and must meet high redundancy requirements. Disclosure of Invention Based on this disadvantage of the prior art, it is an object of the present invention to provide a fire control device which has a significantly lower failure rate than conventional fire control devices, in particular those having a central fire alarm central unit. This object is achieved by a fire control device according to claim 1. The invention propos