Wireless component of a fire protection hold-open system, method for presenting a signal strength and method for mounting a wireless component of a fire protection hold-open system

Abstract

Wireless component (10) of a fire protection hold-open system (1), with a first radio interface (17a) for receiving electromagnetic waves carrying energy and information from a remote component, a measuring device (11) for measuring a signal strength of the received waves, an evaluation device (12a) which generates a signal strength value corresponding to an output of the measuring device (11) and has a plurality of sub-devices (12a1, 12a2) which are designed to generate independent signal strength values ​​corresponding to a strength of the received wave and corresponding to the strength of a transmitted wave, to generate correspondingly independent signals and to output them via a second interface (14 - 16, 17c), an output device (14 - 17) with the second interface (14 - 16, 17c) effecting or enabling a local display for outputting a signal corresponding to the signal strength value via the second interface (14 - 16, 17c), and with a switching device (19) for selectably switching on and / or off use of the second interface (14 - 16, 17c) and, if necessary, upstream signal generation components and sub-devices.

Description

[0001] The invention relates to a wireless component of a fire protection locking system, a method for presenting a signal strength of a radio signal received in a wireless component of a fire protection locking system and a method for mounting a wireless component of a fire protection locking system.

[0002] Referring to Fig. 4, a locking system 100 is first described in general terms, as is known from DE 10 2014 225 297 B4. In Fig. In 4, arrows between boxes indicate radio links, while lines represent wired connections. 112 represents two wireless fire sensors, and 114 is a manual trigger button. Fire detectors can detect fire conditions, such as smoke or certain gases, and possibly radiation, and emit a corresponding alarm signal. The signal is transmitted via the radio link shown. A manual trigger button 114 can trigger an alarm of the same quality, which is also transmitted via a radio link.

[0003] 126 designates a communication interface that enables radio communication with the peripheral radio components of wireless fire detectors 112 and manual trigger buttons 114 (hereinafter referred to as "peripheral components"). Communication interface 126 is also referred to as the "central component." Communication is preferably bidirectional. In this case, all components 112, 114, and 126 are transmitting and receiving.

[0004] To handle the multiple channels, a suitable multiplex can be implemented. On the hardware side, it can be defined by switches. On the radio side, access conflicts are unlikely to occur, as the signaling times are very short compared to the cycle times (factor < 10 -6 ). If an unlikely access conflict nevertheless arises, suitable retransmission routines are implemented to prevent messages from being lost. The peripheral transmitting components of wireless fire detectors 112 and manual trigger buttons 114 can transmit identification data so that the communication interface 126 can recognize which component the respective transmission is coming from.

[0005] 128 is a resistance simulation device by means of which fault situations can be simulated in a component, in particular a central component, that affect other radio-transmitting components 112 and 114 (wireless components). A "component" can be understood to mean a separately mountable or pluggable system part. A "radio component" or "wireless component" can be a component that sends and / or receives information to another component via a radio link. Wired components detect their connection via resistance monitoring. Very high or infinite resistance or very low or practically 0 resistance indicate faults in the sense of a line break or a short circuit, while resistances in a medium range indicate a proper connection. This is checked by the monitoring component.To enable a monitoring component to run the same monitoring routines for connected radio components as for hard-wired components, a resistance simulation means 128 is provided at the monitoring-side radio interface 126. If the signal exchange via the radio link at the radio interface 126 reveals that there is a radio connectivity problem or another problem in the connected radio component, the resistance simulation means 128 (controlled by the radio interface or its own logic) can be used to signal this problem in the same way as a line break or short circuit in a hard-wired component would. The communication interface 126 and the resistance simulation means 128 can be combined to form an additional module 124. The additional module 124 is connected to a control and / or evaluation device 118 (hereinafter also referred to as controller 118 for short).The connection can be made by directly plugging the module onto the device 118 or by means of an elongated cable. However, it is equally possible to provide the communication interface 126 and the resistance simulation means 128 integrally with the controller 118. 116 is a power supply for the hard-wired components.

[0006] 120 is a hold-open device with a trigger mechanism. It triggers a mechanical action upon the occurrence of predetermined conditions. Typically, this triggers a door or gate closure. The action is scheduled to occur when the wireless fire detector 112 or the manual release button 114 first transmits a corresponding signal via the radio link to the communication interface 126, which then forwards it to at least the control unit 118, which then takes the necessary action.

[0007] To monitor the connectivity between the radio-transmitting components 112 or 114 and the communication interface 126, in addition to reporting alarms, regular or periodic communication between them is implemented. If this does not occur or does not occur as intended, appropriate measures are triggered. Regular communication via the radio links is designed to be periodically initiated by the peripheral component, the wireless fire detector 112 or the manual trigger button 114. A message (hereinafter referred to as a "connection test message") is then sent from the peripheral component to the communication interface 126, from which it is acknowledged back to the peripheral component (hereinafter referred to as an "acknowledgement message"). The period duration of these tests is less than 100 seconds, preferably less than 80 or less than 70 seconds. It can be more than 40 or more than 50 seconds.

[0008] The connection test message itself lasts only a few milliseconds, as does the acknowledgment message, which is sent back to the peripheral component after receipt of the connection test message. If the controller 118 does not receive the expected connection test message within the specified time window, further measures are initiated, which may also include requesting human intervention. If, in turn, the peripheral component 112, 114 does not receive the expected acknowledgment message, further measures can also be taken, such as retrying the connection test message, possibly with different parameters (higher transmission power), local or remote error notification, and the like.

[0009] In many cases, the connection quality between peripheral components and central components also depends significantly on the installation conditions and mounting locations of these components. Due to reflections, standing waves, and similar factors, even a few centimeters' difference in the mounting location of a wireless component can cause very significant differences in the quality, especially signal strength, of the received signals and, in some cases, also the transmitted signals.

[0010] When installing the components, attention must therefore be paid to a suitable mounting location. However, other parameters may be just as relevant as the mounting location, such as the orientation of the radio-communicating component (especially its antenna), possibly the frequency selection, the design of the surroundings of the radio-communicating components, and similar factors.

[0011] The design of these parameters is the responsibility of the installer during component assembly. It has so far been very difficult to provide the installer with suitable feedback on this. Assembly is sometimes carried out without feedback or "by feel." In some designs, two installers are required: one at the component to be installed and one at a central system that may have information about signal strengths, with the two installers then having to communicate with each other. Alternatively, the installer may have to carry complex equipment that determines and outputs values. However, the latter is only of limited use, since the equipment carried cannot, in principle, be at the location of the component to be installed because that location is already occupied by the component to be installed.

[0012] DE 10 2011 014 889 A1 relates to a method for operating a communication system, a communication system configured for this purpose and a hazard detector in which it is possible to control the communication range without changing the transmission power or the receiver sensitivity.

[0013] DE 20 2004 011 196 U1 discloses a device for transmitting transmission power control information between network management functional units in a wireless communication system. The present invention is an access point (AP) or an integrated circuit (IC) that requests TPC (Transmission Control Protocol) information from a WTRU (wireless transmit / receive unit).

[0014] DE 10 2010 047 099 A1 describes a smoke detector alarm system with a plurality of smoke detector units which are wirelessly connected to one another and configured to exchange data, each of which is designed to be stationary at a location to be monitored and has transmission means for wireless data exchange, smoke sensor means for smoke detection and alarm means for emitting an acoustic and / or optical alarm signal.

[0015] The object of the invention is to provide a wireless component of a fire protection detection system that enables the local display of signal strengths.

[0016] This object is achieved by the features of the independent patent claims. Dependent patent claims are directed to preferred embodiments of the invention.

[0017] A wireless component has a measuring device for measuring the signal strength of received waves. It also has an evaluation device that generates a signal strength value based on the output of the measuring device. Finally, it generates a signal corresponding to the generated signal strength value and outputs it to an interface of an output device, wherein the interface provides or enables a local display of the signal strength value.

[0018] In this way, the installer has a direct indication from the device as to how good the signal strength of the received waves is.

[0019] The component may further be designed to receive a signal strength value determined and transmitted by another wireless component and to output this received signal strength value locally or to present it in a manner that can be tapped off, together with the signal strength value determined by the component itself, in a distinguishable manner.

[0020] The received signal strength value is, in particular, the signal strength that the remote wireless component measures from the waves it receives from the component being installed. This assumes that the component being installed is already transmitting and receiving signals as intended during installation. This provides the installer with an indication of the quality of the radio connection in both the transmit and receive directions. He or she can then design the installation conditions based on these indicators, making it relatively easy to find a suitable arrangement. The local indicator can be a visual or acoustic indicator.Enabling a local display may also include generating suitable signals which in turn can be picked up either wirelessly or via a plug connection on the component to be mounted and displayed in a separate device.

[0021] The generated signal strength value can be an average of several time-series measured values. This averages out transient changes, making gross misdeterminations less likely.

[0022] In addition to the local presentation of the signal strength value generated by the user's own measurement, it can also be transmitted in a suitable manner to a remote wireless component in order to be available and evaluable there.

[0023] Finally, a selection device can be provided to enable or disable the local presentation / provision of signal strength values. Upstream components / measures can also be enabled or disabled, such as the operation of the evaluation device and the operation of the measuring device. Since wireless components often have a limited power supply (battery), it is desirable to reduce the operation of unnecessary components as much as possible. Since the described presentation of signal strengths is not required continuously, it is therefore desirable to be able to selectively enable or disable the associated components to save energy.

[0024] The wireless component has a first radio interface for transmitting and / or receiving electromagnetic waves carrying energy and / or information to or from a remote component. This can include sending the messages described in the prior art (connection test message, acknowledgement message, alarm message, fault message). The associated radio interface is bidirectional. In the wireless component to be installed, the signal strength of the received wave is measured at the bidirectional interface.

[0025] The wireless component may include a means for requesting or initiating the temporary shortening of the communication signal period. For example, if the typical period is 60 seconds and five values ​​are considered for averaging, it would take four minutes each to collect five values ​​to test the quality of a specific assembly configuration. To shorten this time, it is desirable to shorten the message transmission period so that measured values ​​are available more quickly. Accordingly, the peripheral component includes a means for requesting or initiating the temporary shortening of the communication signal transmission period.

[0026] The component can also be configured for communication with a third-party device and, for this purpose, have a communication port, which can be wired with a plug or wireless. Via such a communication port, the third-party device can perform or initiate various actions, such as shortening the period, performing a system reset, simulating errors and / or alarms, requesting stored data, and the like. The third-party device can also be used to display the determined and / or received signal strength value.

[0027] Generally speaking, the component is a peripheral component, in particular a fire sensor or a manual release switch, which is designed to send a detection signal or a manual release signal or a fault signal or an alarm signal to a central component via a first radio interface.

[0028] A method for presenting the signal strength of a radio signal received in the wireless component of a fire protection detection system according to the invention has the steps of receiving electromagnetic waves carrying energy and / or information from a remote component, measuring the signal strength of the received waves, generating a signal strength value according to the measurement results, and outputting a signal corresponding to the signal strength value to an interface of the component causing or enabling a local display.

[0029] A method for mounting the wireless component (10) according to the invention of a fire protection detection system (1) has the steps of switching on the wireless component, presenting the signal strength of a radio signal received in the wireless component (10) as above, determining a mounting position in accordance with the presentation, and mounting the component at the determined position.

[0030] Individual embodiments of the invention are described below with reference to the drawings, which show Fig. 1 a component with a coupled system, Fig. 2 the procedure for creating a signal strength value, Fig. 3 the transmission of communication signals on the time axis, and Fig. 4 a well-known locking system.

[0031] Fig. 1 shows a wireless component 10 and the system 2 to 6 to which it is coupled. The component 10 is preferably a peripheral component, in particular a fire sensor or a radio fall detector or a manual release switch or a radio triggering device or a radio locking sequence control device or a radio door closer. However, it can also be a central component, such as a controller or a radio communication module or a radio power supply. However, assuming that the Fig. If the wireless component 10 shown in Figure 1 is, for example, a fire sensor, it communicates via a radio link with a central radio communication module 6 of the hold-open system 1. This in turn is connected to a central control unit 2, which can be connected via a cable to further fire sensors 3, manual release switches 4 and hold-open devices 5.

[0032] In component 10, it is assumed that communication with the central components takes place via a first interface 17a, which interacts suitably with module 6. The protocol mentioned above, consisting of a connection test message from the peripheral component to the central component and, in response thereto, an acknowledgment message from the central component to the peripheral component, can be implemented between peripheral component 10 and system 1 or its central components. It runs via the aforementioned first interface 17a, which is preferably bidirectional.

[0033] Reference numeral 9 denotes a sensor or actuator connected to the control unit 12. The sensor can be a fire sensor or, alternatively, a manual release button. An actuator can be a locking device.

[0034] The controller includes a general controller 12b for timing and sequence control. It also includes a control unit 12a for controlling the processes and sequences considered according to the invention.

[0035] The component 10 also has a second interface 17c, 14 to 16 enabling a local display.

[0036] Generally speaking, the interfaces are supplied with the necessary signals by the control unit 12a. Signal converters 18 (drivers) are also present to generate suitable electrical signals for the respective interfaces based on the data from the control unit 12a. The interfaces 14 to 16, 17c enabling a local display can be an acoustic interface 14, an optical interface 15, a plug connection 16, or a wireless interface 17c. 13 symbolizes a power supply. This can be a battery.

[0037] Reference numeral 11 designates a device for measuring the signal strength of the received electromagnetic waves. In principle, it can always be in measuring mode, while the controller ensures that the output values ​​are appropriately evaluated only during reception and not during transmission. If the output transmission power is of interest, this can also be evaluated through control intervention. Generally speaking, the evaluation device 12a receives the output of the measuring device 11 and determines a signal strength value from it. Many of the processes can be implemented digitally, so that the output of the measuring device 11 can be converted to digital and thus further processed. Analog processing is also conceivable.

[0038] If a suitable signal strength value is present, the controller 12 generates signals suitable for a local presentation interface and delivers them to that interface. It should be noted that in real devices, the locally acting interfaces are not Fig. 1 must be present in parallel. They may have a wireless interface 17c, an optical interface 15, an acoustic interface 14, or a plug interface 16.

[0039] The second interface 14 to 16, 17c, which enables local presentation, displays or at least makes accessible the signal representing the signal strength value, enabling its local presentation. This allows an installer to determine the reception quality directly on-site, possibly directly on the device, allowing them to adjust their installation measures accordingly.

[0040] Furthermore, the controller 12 can be designed to also generate a signal for the first interface 17a to the central unit for the signal strength value based on the local measurements, so that the central unit is also informed about the signal strength at the reception of the radio component 10.

[0041] Conversely, for example, the remote wirelessly coupled radio module 6 can measure the signal strength received by component 10 and send this value as a signal strength value to component 10 via the first interface 17a. Assuming that the signal strength value for the received waves is generated in a first sub-device 12a1, a signal for the second interface 14 to 16, 17c is generated in a second sub-device 12a2 from the value received via radio, so that the signal strength value thus received can also be presented locally. In this way, it is possible to locally present both the signal strength at the reception of the peripheral component and the received signal strength supplied by the local component 10 at the receiving component (for example, at module 6).These two values ​​are presented in a suitable manner, for example alternately or in parallel, if appropriate output devices are provided for this purpose.

[0042] An optical local interface can use luminance as a measure of the signal strength value, or a bar graph consisting of multiple LEDs, or it can have a small LCD display that can also show a bar graph. An acoustic interface can provide a measure of the signal strength value to be displayed using frequency or volume. A connector interface 16 (for example, USB) or a second radio interface 17c can interact with a suitably configured local third-party device. Such a third-party device can be a simple installation support device or can be configured as a laptop or similar device equipped with suitable software for evaluating the signals from the connector interface 16 or radio interface 17c (for example, WLAN / WiFi, NFC, RFID, Bluetooth, DECT, etc.).In this respect, component 10 can also have a general communication port 16, 17c for communicating with a third-party device. This communication port 16, 17c can be formed by the aforementioned second radio interface 17c or connector interface 16, or by a further radio interface 17b, such as WiFi / WLAN, NFC, or Bluetooth. The third-party device can then initiate certain actions in the component or, via component 10, at the central unit 2.

[0043] The signal strength value is preferably determined as the average of several measured values ​​in order to be able to average out false detections or transient interference. The signal strengths of the connection test messages and acknowledgment messages, which are sent periodically according to the protocol, are preferably used here. Since these are themselves very short (a few milliseconds), only one measured value can be generated per message. Since several are advantageously used to calculate the average, this means that several periods must be waited for. If the period duration is comparatively long (for example, over 30 seconds, over 40 seconds, or over 50 seconds), this can lead to a long wait until the appropriate number of individual values ​​is available for averaging. Since this would have to be done for each individual installation variant attempted, this is a very time-consuming and practically impossible process.According to one option, component 10 is therefore equipped with a facility that temporarily initiates the transmission of protocol-compliant messages with a shorter period. If the acknowledgment messages then arrive with correspondingly shorter periods, the wait only needs to be based on the sum of the shorter period, not the longer one.

[0044] Fig. Figure 2 shows the procedure for presenting signal strength. In step 21, the signal strength of the signals received when a message is received is measured. This can result in analog or digital values. The measurements are performed multiple times, and the resulting multiple values ​​are appropriately processed in step 22 to obtain a signal strength value, for example, calculated into an average.

[0045] The signal strength value can be expressed in dB as the relative ratio of received power to transmitted power or absolutely in dBm as received power in milliwatts or as SNR (signal-to-noise ratio), possibly also in dB, or as RSSI according to IEEE 802.11, and can be output in this scale.

[0046] Before step 21 of measuring, there may be a step (not shown) of causing a shorter period duration, as with reference to Fig. 3. After averaging 22, further steps 23 may follow, such as resetting to the normal period duration, and then sending the obtained signal strength value to a central component (step 24). Furthermore, the value is output to the second interface enabling local presentation, so that it is displayed locally or is available.

[0047] Fig. Figure 3 shows the process on the time axis. The conventional period tp is, for example, 60 seconds. The periodic acknowledgment messages for the connection test message sent by the peripheral component 10 then arrive at t = 0, 60, and 120. It is assumed that a shortening of the period duration is set at t = 170 seconds. For example, a connection test message can then be sent once per second from the peripheral component 10 to the central component 6 / 2, where its received field strength can be measured (as explained above), so that a corresponding value is also generated there, which is then applied to the acknowledgment message sent back to the component 10.

[0048] At the same time, the peripheral component 10 can measure the received acknowledgment signal for signal strength using the measuring device 11. In the example shown, ten incoming confirmation messages can be measured within approximately 9 seconds, so that sufficient measured values ​​are available for averaging within a comparatively short time. After, for example, a preset number of messages have been sent, the system can return to the conventional period tp.

[0049] However, it is also conceivable to provide a switch or button (not shown) that an installer can press or hold. As long as the switch is pressed or held, connection test messages are transmitted with the shorter period tk. When the switch is reset or released, component 10 returns to the normal period tp.

[0050] The shortening of the period duration can be done to values ​​such that the short period duration tk is less than 5 seconds or less than 2 seconds or less than 1 second or less than 0.5 seconds, but preferably greater than 0.05 seconds or 0.1 second or 0.5 seconds.

[0051] The communication port 16, 17c can also be used to shorten the period from tp to tk and also to return to tp. If necessary, a system reset, the setting of an error and / or alarm situation, or the reading of previously stored data can also be initiated via the third-party device and the communication port. In this respect, component 10 can have a memory that stores values, such as a predetermined number of recently measured signal strengths or a most recently determined signal strength value.

[0052] The controller 12 may also include a selector or switching device 19 to determine whether the measurement of the incoming signal strength and any subsequent processing should be performed. Peripheral components 10, if connected via radio, often have limited energy resources. Fig.1, a battery 13 is indicated. With this type of component, it is desirable to use energy sparingly, so that unnecessary measures are avoided wherever possible. Since the measurement of the incoming signal strength is generally only required during assembly of the component 10, it may be desirable to carry out the necessary processing (signal strength measurement, averaging, signaling, etc.) only during assembly and to omit it thereafter. Accordingly, a switching device 19 can be provided in order to be able to make this selection. This can be a mechanical switch or an electronic switch that is actuated, for example, from a writable register. The switching device 19 can also be coupled to the switch or button for shortening the period as described above, or it can switch automatically by being activated after the battery orWhen the power supply is switched on, it is “on” and after a certain period of time it is set to “off”.

[0053] If the locally acting interface 17c is a radio interface, it can be the same as the first interface 17a for interaction with the central module 16. The locally present third-party device is then designed to “listen” to the data exchange between the aforementioned components 10, 6, 2.

[0054] Generally speaking, the radio interfaces can implement well-known radio standards, such as WLAN / WiFi, Bluetooth, NFC, RFID, DECT, or similar. The radio frequency between peripheral component 10 and the control center (i.e., radio interface 17a) can be between 865 and 870 MHz, particularly 868 MHz.

[0055] Features in this description should be considered combinable with one another, even if their combination is not explicitly described, to the extent that this is technically possible. Features described in a certain context, patent claim, figure, or embodiment should also be understood as being extractable from it and combinable with other contexts, patent claims, figures, or embodiments, to the extent that this is technically possible. Descriptions of method steps should also be understood as descriptions of components implementing these method steps, and vice versa. List of reference symbols 1 hold-open system, fire alarm system 2 central control 3 fire alarm sensors 4 manual release buttons 5 locking device 6 Communication module 9 Sensor, Actuator 10 components 11 Measuring device 12 Control 12a Evaluation device 12a1 first sub-device 12a2 second sub-unit 13 Energy supply 14 acoustic interface 15 optical interface 16 connector interface 17a, 17b, 17c radio interfaces 18 drivers for the interfaces 19 Dialing device 21 - 25 process steps 100 hold-open system 112 wireless fire detector 114 wireless manual trigger button 116 Energy supply 118 Control 120 locking device with release device 124 Additional module 126 Communication interface 128 resistance simulation tools

Claims

[1] Wireless component (10) of a fire protection locking system (1), with a first radio interface (17a) for receiving electromagnetic waves carrying energy and information from a remote component, a measuring device (11) for measuring a signal strength of the received waves, an evaluation device (12a) which generates a signal strength value corresponding to an output of the measuring device (11) and has a plurality of sub-devices (12a1, 12a2) which are designed to generate independent signal strength values corresponding to a strength of the received wave and corresponding to the strength of a transmitted wave, to generate independent signals accordingly and to output them via a second interface (14 - 16, 17c), an output device (14 - 17) with the second interface (14 - 16, 17c) effecting or enabling a local display for outputting a signal corresponding to the signal strength value via the second interface (14 - 16, 17c), and with a switching device (19) for selectably switching on and / or off use of the second interface (14 - 16, 17c) and, if necessary, upstream signal generation components and sub-devices. [2] Wireless component (10) according to claim 1, wherein the second interface comprises an optical interface (15) and / or an acoustic interface (14) and / or a second radio interface (17c) or the first radio interface (17a) and / or a plug interface (16). [3] Wireless component (10) according to claim 1 or 2, which is or comprises a fire detector or a radio fall detector or a manual release switch (4) or a central controller (2) or a radio communication module (6) or a radio energy supply device or a radio release device or a radio locking sequence control device or a radio door closer. [4] Wireless component (10) according to one of the preceding claims, wherein the evaluation device (12a) is designed to generate the signal strength value in accordance with a plurality of time-serially determined individual values, in particular as their mean value. [5] Wireless component (10) according to one of the preceding claims, wherein the output device (14 - 17) has a plurality of interfaces (14, 15, 16, 17a, 17b, 17c) and is designed to also generate a signal for the first radio interface (17a) for a signal strength value and to output this signal to the first radio interface (17a). [6] Wireless component (10) according to one of the preceding claims, which is provided with a preferably bidirectional communication device for transmitting a communication signal to be transmitted repeatedly, preferably periodically, and for receiving a correspondingly periodically receivable confirmation signal, wherein the measuring device (11) is designed to generate a signal strength value of a strength of the waves of the received signal. [7] Wireless component (10) according to claim 6, comprising means for requesting or causing a temporary shortening of a period of transmission of the communication signal. [8] Wireless component (10) according to one of the preceding claims, in which a controller (12) is connected to a communication port (16, 17c) for data exchange with a third-party device, wherein the controller (12) is designed to carry out control interventions in the wireless component (10) in accordance with data received from the third-party device via the communication port (16, 17c), in particular one or more of the following interventions: • Requesting or initiating the temporary shortening of the period of transmission of the communication signal according to claim 7, • Requesting or initiating a system reset, • Requesting or initiating an error and / or alarm simulation, • Request stored data. [9] Wireless component (10) according to claim 8, comprising a memory for storing one or more of the signal strength values, wherein the controller (12) is adapted to output one or more of the stored signal strength values via the output device (14-17) in response to a predetermined condition. [10] Wireless component (10) according to one of the preceding claims, which is a fire detector with a fire sensor (3) or a manual release switch (4) with a manual switch and which is designed to transmit a detection signal or a manual release signal or a fault signal via the first radio interface (17a) to a receiving component (2, 6). [11] Method for presenting a signal strength of a radio signal received in a wireless component (10) according to one of the preceding claims of a fire protection detection system (1), comprising the steps Receiving the electromagnetic waves carrying energy and information from the remote component, Measuring the signal strength of the received waves, Generating the signal strength value according to the measurement results, and outputting a signal corresponding to the signal strength value to the second interface (14-16, 17c) of the wireless component (10) which effects or enables the local display. [12] Method for assembling a wireless component (10) according to one of claims 1 to 10 of a fire protection locking system (1), comprising the steps Switching on the wireless component (10), Presentation of a signal strength of a radio signal received in the wireless component (10) according to claim 11, Determining a mounting position according to the presentation, and mounting the wireless component (10) at the determined mounting position.

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