JP2013003881A - Wireless waterproof equipment, setter for wireless waterproof equipment and wireless system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable setting of a communication frequency with satisfactory waterproof performance.SOLUTION: Wireless waterproof equipment having a transmission/reception part for transmitting/receiving a radio signal with other devices and a control part for controlling the transmission/reception part comprises operation signal output means stored in a sealed space of a case for outputting an operation signal through detecting a factor from the outside of the case. When inputting the operation signal, the control part sets the transmission/reception part to a state of transmitting/receiving a preset communication frequency among communication frequencies settable as a communication frequency for the wireless waterproof equipment and transmits a radio signal indicating a communication start, while, when receiving a radio signal specifying a communication frequency for the wireless waterproof equipment via the transmission/reception means, the control part sets the transmission/reception part to a state of transmitting/receiving the specified communication frequency.

Description

  The present invention relates to a wireless waterproof device, a setting device for the wireless waterproof device, and a wireless system.

  Conventionally, as fire alarm equipment, what connected a detector and a fire receiver via a signal line was common, but in recent years, fire alarm equipment partially wireless has been proposed. In this fire alarm facility, the fire receiver is connected to a wireless repeater via a signal line, while the wireless sensor is connected to the wireless repeater via a wireless connection (for example, Patent Document 1). reference).

  In such a wireless fire alarm facility, the wireless sensor and the wireless repeater need to set the same communication frequency for transmitting and receiving wireless signals to each other. Conventionally, the wireless sensor and the wireless repeater have been set to the same communication frequency by operating a communication frequency setting switch exposed on the back side of the casing. In addition, the wireless sensor and the wireless repeater are provided with a battery exposed on the back side of the housing, and a battery connector connected to the battery connection connector exposed on the back side of the housing. By connecting the, the power is supplied and the operation state is established, and in this state, it is attached to a wall surface or the like to perform fire monitoring.

JP 2008-004037 A

  By the way, depending on the environment of the installation location, it is necessary to attach a waterproof type as a wireless sensor. In that case, in order to satisfy the waterproof performance, the communication frequency setting switch, the battery connection connector, and the battery cannot be provided exposed from the casing. It is desirable to be able to supply.

  The present invention has been made to solve the above-described problems, and is a wireless waterproof device capable of setting a communication frequency while satisfying waterproof performance, and a setting device for the wireless waterproof device. And a wireless system. The present invention also provides a wireless waterproof device, a setting device for the wireless waterproof device, and a wireless system that can supply power while satisfying the waterproof performance.

  This invention is a wireless waterproof device including a transmission / reception unit that transmits / receives a radio signal to / from another device, and a control unit that controls the transmission / reception unit, and is housed in a sealed space in a housing. An operation signal output unit that detects an external factor and outputs an operation signal is provided, and the control unit can be set as a communication frequency of a wireless waterproof device when the operation signal is input. Among the communication frequencies, set the transmitter / receiver to the transmission / reception state of the preset communication frequency, transmit a radio signal indicating the start of communication, and specify the communication frequency of the wireless waterproof device via the transmitter / receiver When the wireless signal to be received is received, the transmission / reception unit is set to the transmission / reception state of the designated communication frequency.

  In addition, the battery includes a battery that is stored in a sealed space in the housing and supplies operating power, and the control unit performs a standby operation that consumes less power than during normal operation in a state in which power is supplied from the battery. A power consumption mode is set at the time of shipment from the factory, and the low power consumption mode is canceled based on the operation signal.

  The present invention relates to a setting device for a wireless waterproof device, comprising: a transmission / reception unit that transmits / receives a radio signal to / from another device; and a control unit that controls the transmission / reception unit. When the transceiver unit is cyclically switched to the transmission / reception state of all communication frequencies that can be set as the communication frequency of the wireless waterproof device, and a wireless signal indicating the start of communication transmitted from the wireless waterproof device is received, The transmission / reception unit is set in a transmission / reception state of a communication frequency when a wireless signal indicating the start of communication is received, and a wireless signal designating a communication frequency of a wireless waterproof device is transmitted.

  In addition, the control unit cyclically switches the transmission / reception unit to the transmission / reception state of all communication frequencies that can be set as the communication frequency of the wireless waterproof device, and measures the electric field strength of the wireless signal. It is determined whether or not a signal has been received, and when it is determined that the radio signal has been received, the transmitter / receiver is continuously operated in the transmission / reception state of the communication frequency when it is determined that the radio signal has been received. And decoding the content of the radio signal.

  Further, the wireless waterproof device described above and a setting device for the wireless waterproof device described above are provided.

  According to the wireless waterproof device according to the present invention, a wireless waterproof device including a transmission / reception unit that transmits / receives a radio signal to / from another device, and a control unit that controls the transmission / reception unit, An operation signal output unit that is housed in a sealed space in the housing, detects a factor from the outside of the housing, and outputs an operation signal, and the control unit wirelessly waterproofs when the operation signal is input. Among the communication frequencies that can be set as the communication frequency of the type device, the transmitter / receiver is set to a transmission / reception state of a preset communication frequency, a wireless signal indicating the start of communication is transmitted, and the wireless signal is transmitted via the transmitter / receiver. When the wireless signal designating the communication frequency of the waterproof type device is received, the transmission / reception unit is set to the transmission / reception state of the designated communication frequency. Therefore, the operation signal output means as a communication frequency setting member is provided. Enclosure Without providing to al exposed, while meeting the waterproof performance, enabling the setting of the communication frequency.

  In addition, the wireless waterproof device according to the present invention includes a battery that is housed in a sealed space in the housing and supplies operating power, and the control unit receives power from the battery during normal operation. A low power consumption mode that performs a standby operation with less power consumption is set at the time of shipment from the factory, and the low power consumption mode is canceled based on the operation signal. The power supply can be performed by canceling the low power consumption mode using the operation signal output means as a member for setting the communication frequency while satisfying the waterproof performance without being exposed from the housing.

  A setting device for a wireless waterproof device according to the present invention includes a transmission / reception unit that transmits / receives a wireless signal to / from another device, and a control unit that controls the transmission / reception unit. In the setting device, the control unit cyclically switches the transmission / reception unit to a transmission / reception state of all communication frequencies that can be set as a communication frequency of the wireless waterproof device, and is transmitted from the wireless waterproof device. When the wireless signal indicating the start of communication is received, the transmission / reception unit is switched to the transmission / reception state of the communication frequency when the wireless signal indicating the start of communication is received, and the wireless signal specifying the communication frequency of the wireless waterproof device is transmitted. Therefore, the communication frequency of the wireless waterproof device can be set.

  Further, in the setting device for a wireless waterproof device according to the present invention, the control unit circulates the transmission / reception unit in a transmission / reception state of all communication frequencies that can be set as a communication frequency of the wireless waterproof device. Switch and measure the field strength of the radio signal to determine whether or not the radio signal has been received. When it is determined that the radio signal has been received, communication when it is determined that the radio signal has been received In the frequency transmission / reception state, the transmitter / receiver is continuously operated to decode the contents of the wireless signal, so that the communication frequency preset in the wireless waterproof device can be quickly determined, Power consumption based on the reception operation of the transmission / reception unit can be reduced.

  Since the wireless system according to the present invention includes the wireless waterproof device and the setting device for the wireless waterproof device, the wireless waterproof device is waterproof. The communication frequency can be set while satisfying the performance.

It is a system configuration figure of the fire alarm equipment concerning an embodiment. It is a block diagram which shows the main structures of the sensor which concerns on embodiment. It is a block diagram which shows the main structures of the waterproof type sensor which concerns on embodiment. It is a block diagram which shows the main structures of the repeater repeater which concerns on embodiment. It is a block diagram which shows the main structures of the radio | wireless repeater which concerns on embodiment. It is an operation | movement flowchart of the wireless waterproof sensor which concerns on embodiment. It is a flowchart of the communication frequency setting mode of FIG. It is an operation | movement flowchart of the setting device which concerns on embodiment.

(overall structure)
FIG. 1 is a system configuration diagram illustrating an example of a fire alarm facility according to an embodiment. The fire alarm system shown in FIG. 1 is a part of a radio alarm system that is wirelessly installed, and is a system that is installed in a building to be monitored and notifies when a fire is detected.

  As shown in FIG. 1, the fire alarm system 100 according to the present embodiment includes a fire receiver A, a wireless repeater B1 (first repeater) connected to the fire receiver A by a signal line CL1, A wireless repeater B2 (first repeater) connected to the fire receiver A by a signal line CL2, and wireless fire detectors D31 and D32 (DB) arranged on the ceiling of each room of the building to be monitored ), D41, D42, and D43, and repeater repeaters C2 and C3 (second repeaters) that are interposed between the wireless repeater B1 and the fire detectors D31 and D32 (DB) and relay wireless signals. I have. The wireless repeater B is connected to the fire receiver A by a power supply line DC and operates by receiving power supply. Further, a general type fire detector that is not wireless can be connected to the signal lines CL1 and CL2. Note that the wireless fire detector D32 (DB) is a waterproof fire detector, and a reference DB as a waterproof fire detector and a reference D32 as a fire detector are shown together. When explaining as a type | mold fire detector, it may explain using code | symbol DB as needed.

  The setting device E shown in FIG. 1 is a device used for setting the communication frequency of the waterproof fire detector DB, but it is also possible to set various data other than the communication frequency.

  Thereafter, the wireless repeaters B1 and B2 are referred to as the wireless repeater B, the fire detectors D31, D32, D41, D42, and D43 are referred to as the fire detector D, and the repeater repeaters C2 and C3 are referred to as the repeater repeater C. In some cases, they are collectively referred to. In addition, the wireless repeater B, the repeater repeater C, and the fire detector D may be collectively referred to as terminal devices.

  Here, each wireless repeater B and a set of fire detectors D and repeater repeaters C that perform wireless communication with the wireless repeater B are referred to as a group. That is, one group is formed for each wireless repeater B. In the example of FIG. 1, the repeater repeaters C2 and C3 and the fire detectors D31 and D32 that perform wireless communication with the wireless repeater B1 and the wireless repeater B1 are referred to as a group G1. Further, the wireless repeater B2 and the fire detectors D41, D42, and D43 that perform wireless transmission / reception with the wireless repeater B2 are referred to as a group G2.

  In each group, each terminal device B, C, D can set any one of a plurality of communication frequencies (for example, 1 to 16 channels) that can be used as a system of the fire alarm facility 100 as a communication frequency. In this embodiment, for example, the group G1 has one channel and the group G2 has two channels, and the communication frequency between the terminal devices B, C, and D is set for each group. However, the present invention is not limited to this.

(Fire detector D)
The fire detector D detects a physical quantity or a physical change of an object to be detected based on a fire phenomenon, and transmits a state signal corresponding to the detected content as a radio signal. As the fire detector D, for example, a wireless smoke detector that outputs an analog value based on the detected smoke concentration or a fire signal as a radio signal, or a radio that outputs an analog value or fire signal based on the detected ambient temperature as a radio signal A thermal sensor of the type is used.

  FIG. 2 is a block diagram showing the main configuration of the wireless fire detector in the embodiment. The fire detector D includes a control circuit 1, a battery 2, a constant voltage circuit 3, a voltage detection circuit 4, a transmission / reception circuit 5, an antenna 6, a fire detection circuit 7, an indicator lamp circuit 8, and a communication frequency setting switch 9. .

  The battery 2 supplies a DC voltage to the constant voltage circuit 3. The constant voltage circuit 3 controls the DC voltage of the battery 2 to a predetermined voltage and supplies it to the control circuit 1, the transmission / reception circuit 5, the fire detection circuit 7, and the indicator lamp circuit 8.

  For example, the voltage detection circuit 4 detects a DC voltage of the battery 2 applied to the constant voltage circuit 3 and outputs a battery voltage detection signal corresponding to the detection voltage to the control circuit 1. When the voltage detection circuit 4 detects that the remaining battery level has dropped or has fallen below the threshold value for running out of the battery, the voltage detection circuit 4 outputs it to the control circuit 1 to operate the indicator lamp circuit 8 and to display the battery running out status information. The state signal including the signal is output from the transmission / reception circuit 5.

  The fire detection circuit 7 detects a physical quantity or a physical change of an object to be detected such as smoke or heat based on a fire phenomenon, and outputs a state signal corresponding to the detected content to the control circuit 1. The indicator lamp circuit 8 is a circuit that controls the lighting operation of the light emitting diode (LED). For example, when the battery is dead, the LED blinks, and when a fire is detected by the fire detection circuit 7, the cycle is different from the blinking. To blink the LED.

  The transmission / reception circuit 5 is connected to an antenna 6 for transmitting / receiving radio signals, and includes a transmission circuit 5a and a reception circuit 5b. The reception circuit 5b performs a reception sampling operation at a predetermined period to detect a radio signal received from the antenna 6, and when the radio signal is addressed to itself, performs a reception process according to the contents. Then, the reception circuit 5b outputs the signal subjected to the reception process to the control circuit 1. The transmission circuit 5a is controlled by the control circuit 1 to perform transmission processing of signals such as status signals. The communication frequency setting switch 9 is a switch for setting the communication frequency of the fire detector D.

  The control circuit 1 includes a CPU, and has a function as a state determination unit that determines a fire state and the like based on a signal output from the fire detection circuit 7. When the control circuit 1 determines that it is in a fire state, the control circuit 1 controls the indicator lamp circuit 8 and issues an alarm by blinking the LED. In addition, the control circuit 1 performs necessary processing based on the signal received by the transmission / reception circuit 5 and controls the transmission / reception circuit 5 as necessary to send a status signal to the wireless repeater B or the repeater repeater C. Send fire signals. The storage element 1a is composed of a nonvolatile memory such as an EEPROM, for example, and stores a program executed by the control circuit 1 and various data.

  Although not shown in detail, the fire detector D is connected by connecting the connector of the battery 2 that is exposed on the rear side of the casing to the connector for battery connection that is exposed on the rear side of the casing. Then, power is supplied to each circuit, and a monitoring mode for normal operation is set. In addition, although not shown in detail, the fire detector D is individually set for each group as the communication frequency of the fire detector D by operating the communication frequency setting switch 9 exposed on the rear surface of the housing. The communication frequency is set. And the control circuit 1 sets the transmission / reception circuit 5 in the transmission / reception state of the communication frequency set for every group in the monitoring mode which performs normal operation | movement, and controls transmission / reception of a radio signal.

(Waterproof fire detector DB)
The waterproof fire detector DB is a fire detector D whose structure is changed to satisfy the waterproof performance.
FIG. 3 is a block diagram showing a main configuration of the wireless waterproof fire sensor in the embodiment. The waterproof fire detector DB includes a control circuit 31, a battery 2, a constant voltage circuit 3, a voltage detection circuit 4, a transmission / reception circuit 5, an antenna 6, a fire detection circuit 7, an indicator lamp circuit 8, and a reed switch 39. The storage element 11a is composed of a nonvolatile memory such as an EEPROM, for example, and stores a communication frequency (default value) for a communication frequency setting mode in addition to a program executed by the control circuit 31 and various data. As the communication frequency for the communication frequency setting mode, any one of a plurality of communication frequencies (for example, 1 to 16 channels) that can be set as the communication frequency of the waterproof fire detector DB is set in advance. Then, the communication frequency of the waterproof fire detector DB is set and stored by a communication frequency setting operation described later.
The waterproof fire detector DB is different from the fire detector D in the operation content of the control circuit 31. Further, instead of the communication frequency setting switch 9 described above, a reed switch 39 (an example of an operation signal output means) that triggers the start of the communication frequency setting mode for setting the communication frequency of the waterproof fire detector DB is provided. The other circuit configuration is basically the same as that of the fire detector D.

  In the waterproof fire detector DB, a sealed space 35 is formed in a housing constituted by a cover 32 and a main body 33 covering the cover 32. All the circuits constituting the waterproof fire detector DB are accommodated in the sealed space 35, so that the waterproof performance as a waterproof type is satisfied. Note that the thermistor 7a as a thermal sensor constituting the fire detection circuit 7 is exposed at the front end side to the outside of the housing, but the sealed portion is sealed by sealing the insertion point from the housing with the sealing member 34. 35 is held. In addition, using a sealing structure similar to the thermistor 7a, a necessary circuit configuration (for example, the antenna 6) may be exposed to the outside of the housing as necessary. Further, the sealed space 35 may be filled with a filler.

  The waterproof fire detector DB has a low power consumption mode, a communication frequency setting mode, and a monitoring mode as modes. Further, the reed switch 39 has a function of turning on when a magnet is brought close and outputting an operation signal for switching modes. Based on the input of this operation signal, the control circuit 31 functions as a mode setting unit 31b for switching each mode. Hereinafter, each mode will be described.

(1) Low power consumption mode The low power consumption mode is a mode in which standby operation is performed with less power consumption than during normal operation (communication frequency setting mode, monitoring mode) with power supplied from the battery 2. This mode is set at the factory. In the low power consumption mode, the control circuit 31 is set to the stop mode, the oscillation of the operation clock of the clock circuit provided in the control circuit 31 is stopped, the fire detection circuit 7, the indicator lamp circuit 8, the transmission / reception circuit 5, etc. Since the monitoring control operation is also stopped, the waterproof fire detector DB is in a standby state in which power consumption is minimized.

(2) Communication frequency setting mode The communication frequency setting mode allows the setting device E to set the communication frequency of the waterproof fire detector DB by transmitting and receiving radio signals to and from the setting device E in FIG. Mode.
In the setting mode, the low power consumption mode is canceled, and the control circuit 31 performs the monitoring control operation of the indicator lamp circuit 8, the transmission / reception circuit 5 and the like based on the oscillation of the operation clock of the clock circuit provided in the control circuit 31. To perform communication frequency setting processing. At this time, the mode setting unit 31b sets the transmission / reception circuit 5 to the transmission / reception state of the communication frequency (default value) for the communication frequency setting mode. In this embodiment, for example, 16 channels are set as default values. Is stored in the storage element 31a.
As the communication frequency setting process, the control circuit 31 first transmits a radio signal (setting mode start signal) indicating the start of communication to the setting device E via the transmission / reception circuit 5. When the transmitted wireless signal designating the communication frequency of the waterproof fire detector DB is received, the designated communication frequency is stored in the storage element 31a, and thereafter the transmission / reception circuit 5 is set to the transmission / reception state of the communication frequency. By controlling, it sets as a communication frequency of waterproof fire detector DB.

(3) Monitoring mode The monitoring mode is a mode for performing normal operations such as fire monitoring processing. In the monitoring mode, the low power consumption mode is canceled, and the control circuit 31 is configured to detect the fire detection circuit 7, the indicator lamp circuit 8, and the transmission / reception circuit 5 based on the oscillation of the operation clock of the clock circuit provided in the control circuit 31. Monitoring and control operations such as fire monitoring are performed. At this time, since the mode setting unit 31b sets the transmission / reception circuit 5 to the transmission / reception state of the communication frequency set in the communication frequency setting mode, the control circuit 31 transmits the radio signal of the set communication frequency to another terminal. Transmission and reception between the devices B and C is possible.

(Setting device E)
The setting device E sets the communication frequency of the waterproof fire detector DB by transmitting and receiving various wireless signals in the communication frequency setting mode of the waterproof fire detector DB.

  The setting device E is shown in a block diagram of the main configuration in FIG. The setting device E includes a control circuit 41, a storage element 41a, a transmission / reception circuit 45, an antenna 46, a display circuit 48, and an operation circuit 49.

  The control circuit 41 has a CPU and controls the entire setting device E. The storage element 41a is composed of, for example, a nonvolatile memory such as an EEPROM, and all communication frequencies (for example, 1 to 16 channels) that can be set as the communication frequency of the program executed by the control circuit 41, various data, and the waterproof fire detector DB. ), And the minimum value (for example, 1 channel) and the maximum value (for example, 16 channels) of the communication frequency are stored. The transmission / reception circuit 45 transmits / receives various radio signals via the antenna 46. The display circuit 48 displays information on the received radio signal, information input by the operation circuit 49, and the like. The operation circuit 49 inputs various information.

When setting the communication frequency of the waterproof fire detector DB, the control circuit 41 circulates the transmission / reception circuit 45 in a transmission / reception state of a communication frequency (for example, 1 to 16 channels) that can be set in the waterproof fire detector DB. To determine whether or not a wireless signal indicating the start of communication transmitted from the waterproof fire detector DB is received. In addition, when the communication frequency of the transmission / reception circuit 45 is cyclically switched, first, it is determined whether or not the wireless signal is received by measuring the electric field strength of the wireless signal, and it is determined that the wireless signal is received. In addition, since the transmission / reception circuit 45 is continuously operated in the transmission / reception state of the communication frequency when it is determined that the wireless signal is received, the content of the wireless signal is decoded. The communication frequency of the radio signal can be determined quickly, and power consumption based on the reception operation of the transmission / reception circuit 45 can be reduced.
Then, the control circuit 41 is waterproofed via the transmission / reception circuit 45 based on the operation input of the operation circuit 39 in a state where the transmission / reception circuit 45 is set to the transmission / reception state of the communication frequency at which the wireless signal indicating the start of communication is received. A signal designating the communication frequency of the fire detector DB is transmitted to set the communication frequency of the waterproof fire detector DB.

  In addition, in the fire alarm equipment 100, the communication frequency for each group G is set from the minimum value of the settable communication frequency, and in response to the increase in the number of groups G, more of the communication frequencies that are not set. In general, operations with smaller values are set in order. Therefore, by adopting a configuration in which the maximum settable communication frequency is set as a default value in advance, for example, when a waterproof fire detector DB is added after system operation, a communication frequency setting mode is set. In the above, various radio signals such as a radio signal indicating the start of communication are reduced from interfering with radio signals of the fire alarm equipment 100 in operation, and the communication frequency setting operation can be performed satisfactorily.

(Repeater repeater C)
The repeater repeater C is interposed between the wireless repeater B and the fire detector D and relays a wireless signal. The repeater repeater C is provided when radio waves do not reach each other between the wireless repeater B and the fire detector D. Like the repeater repeaters C2 and C3 shown in the group G1 in FIG. 1, two or more repeater repeaters C may be provided between the wireless repeater B and the fire detector D for relay.

FIG. 4 is a block diagram showing a main configuration of the repeater repeater in the embodiment.
The repeater repeater C includes a control circuit 11, a battery 2, a constant voltage circuit 3, a voltage detection circuit 4, a transmission / reception circuit 5, an antenna 6, an indicator lamp circuit 8, and a communication frequency setting switch 9. Unlike the above-described fire detector D, the repeater relay C does not include the fire detection circuit 7 and the operation content of the control circuit 11 is different, but the other configurations are basically the same as those of the fire detector D. It is. Further, the arrangement of the battery 2, the power supply method by the battery 2, the arrangement of the communication frequency setting switch 9, the setting method of the communication frequency, and the control of the control circuit 11 relating to these are basically the same as those of the fire detector D. is there. For example, the repeater repeater C may be provided with a fire detection circuit 7 as shown in the fire detector D of FIG. 2 or a sensor for detecting smoke, heat, etc., so that the repeater repeater C has a fire detection function.
The storage element 11a is composed of a nonvolatile memory such as an EEPROM, for example, and stores a program executed by the control circuit 11 and various data.

(Wireless repeater B)
The wireless repeater B has a function of transmitting / receiving a wireless signal to / from the fire detector D and the repeater repeater C and transferring the wireless signal from the fire detector D or the repeater repeater C to the fire receiver A. doing.

FIG. 5 is a block diagram showing a main configuration of the wireless repeater in the embodiment.
The wireless repeater B includes a control circuit 21, a constant voltage circuit 3, a voltage detection circuit 4, a transmission / reception circuit 5, an antenna 6, an indicator lamp circuit 8, a communication frequency setting switch 9, a receiver I / F circuit 22, a power line. Terminal 20a and signal line terminal 20b. The wireless repeater B is not battery-operated like the fire detector D and repeater repeater C described above, and the fire receiver A is connected via the power line DC connecting the fire receiver A and the power line terminal 20a. Is supplied with DC power. Further, the fire receiver A and the signal line terminal 20 b are connected by signal lines CL (CL 1, CL 2), and the wireless repeater B communicates with the fire receiver A via the receiver I / F circuit 22. Send and receive. Although the operation contents of the control circuit 21 and the information stored in the storage element 21a are partially different, the other configurations are basically the same as those of the fire detector D and the repeater repeater C. The arrangement of the communication frequency setting switch 9, the communication frequency setting method, and the control of the control circuit 21 related thereto are basically the same as those of the fire detector D. For example, the wireless repeater B may be provided with a fire detection circuit 7 such as the fire detector D shown in FIG. 2 or a sensor for detecting smoke or heat, and the wireless repeater B may have a fire detection function. Good.
The storage element 21a is composed of a nonvolatile memory such as an EEPROM, for example, and stores a program executed by the control circuit 21 and various data.

  In the present embodiment, the fire receiver A supplies power for the wireless repeater B through a power line DC different from the signal line CL. However, if there is no problem in terms of power capacity, The power supply line DC can be deleted, and power for the terminal device can be supplied through the signal line CL. In that case, the wireless repeater B is connected to the signal line terminal 20b and the receiver I / F instead of the power line terminal 20a on the primary side of each circuit connected to the power line terminal 20a in FIG. The circuit 22 is connected.

  Next, an operation for setting a communication frequency in the wireless repeater D, the repeater repeater C, the fire detector D, and the waterproof fire detector DB will be described. As for the waterproof fire detector DB, the entire operation flow will be described with reference to the operation flowchart of the waterproof fire detector DB in FIGS. The setting device E will be described with reference to an operation flowchart of the setting device E in FIG.

(Overall operation flow of waterproof fire detector DB)
As shown in FIG. 6, the waterproof fire detector DB is initially activated in a low power consumption mode (S1), and a magnet is brought close to the reed switch 39 so that the reed switch 39 is not turned on ( S2) The low power consumption mode is maintained (S1). On the other hand, when the magnet is brought close to the reed switch 39 and the reed switch 39 is turned on (S2), the low power consumption mode is canceled (S3), and communication is performed. Switch to the frequency setting mode (S4).
In the communication frequency setting mode, when the reed switch 39 is turned on again (S17 in FIG. 7), the communication frequency setting mode is terminated (S18 in FIG. 7), and the mode is switched to the monitoring mode for performing fire monitoring (S5). ) Until the reed switch 39 is turned on (S6), the monitoring mode is maintained (S5). On the other hand, when the reed switch 39 is turned on (S6), the monitoring mode is released. At this time, when the reed switch 39 is turned on for a predetermined time or longer (S7), the mode is switched to the low power consumption mode (S1), and when it is turned on for less than the predetermined time (S7), the mode is switched to the communication frequency setting mode (S4).

(Communication frequency setting)
The communication frequency is set before the wireless repeater B, the repeater repeater C, the wireless fire detector D, and the waterproof fire detector DB are installed on the ceiling or wall of each room.

In the wireless repeater B, the repeater repeater C, and the fire detector D, for example, the group G1 is 1 channel and the group G2 is 2 channels by operating the communication frequency setting switch 9 provided on the back of the casing. As described above, an individual communication frequency is set for each group.
Next, setting of the communication frequency of the waterproof fire detector DB using the setting device E will be described. First, as described with reference to FIG. 6, the mode of the waterproof fire detector DB is set to the communication frequency setting mode (S <b> 4) by bringing the magnet close to the reed switch 39 and turning on the reed switch 39. .
Then, as shown in FIG. 7, the waterproof fire detector DB first displays the communication frequency setting mode by the indicator lamp circuit 8 (S10). Next, the waterproof fire detector DB controls the transmission / reception circuit 5 to the transmission / reception state of the communication frequency (default value, for example, 16 channels) for the communication frequency setting mode set in the storage element 31a (S11). A radio signal indicating the start (setting mode start signal) is transmitted to the setting device E (S12). Transmission of the setting mode start signal continues until a response signal transmitted from the setting device E is received (S13).

  On the other hand, as shown in FIG. 8, the setting device E first selects one channel of the minimum value from all the communication frequencies N of the waterproof fire detector DB set in the storage element 41a (S31). The transmission / reception circuit 45 is controlled to the transmission / reception state of the selected communication frequency (S32). Then, the electric field strength K of the received radio signal is measured via the transmission / reception circuit 45 (S33), and it is determined whether the electric field strength K is equal to or greater than the threshold value S (S34). If the electric field strength K is not equal to or greater than the threshold value S (S34), it is determined that the setting mode start signal is not transmitted from the waterproof fire detector DB at this communication frequency N, and the communication frequency N is incremented cyclically by one. (S35, S36) If the communication frequency N is the maximum value of 16 channels (S35), the communication frequency N is returned to the minimum value of 1 channel (S37), and the operations of steps S32 to S34 are repeated. If the electric field strength K is greater than or equal to the threshold value S (S34), there is a possibility that a setting mode start signal is transmitted from the waterproof fire detector DB at this communication frequency N (16 channels in this case). Whether or not the setting mode start signal transmitted from the waterproof fire detector DB is received by controlling the transmission / reception circuit 45 to the transmission / reception state of the communication frequency N, attempting continuous reception, decoding the radio signal, and This determination is continued (S38). When the setting mode start signal is received, a response signal is transmitted to the waterproof fire detector DB (S39). Then, the operation circuit 49 is operated to select one of the communication frequencies of the waterproof fire detector DB (in this case, one channel), and a radio signal designating the one channel is transmitted (S39).

  When the waterproof fire detector DB receives a wireless signal designating the communication frequency of the waterproof fire detector DB (S14), the waterproof fire detector DB stores one channel in the storage element 31a as the communication frequency setting, and the setting memory is stored. Is displayed on the indicator lamp circuit 8 (S15), and thereafter, the transmission / reception circuit 5 is controlled to the transmission / reception state of one channel. Thereafter, a response signal is transmitted to the setting device E (S16). If the wireless signal designating the communication frequency of the waterproof fire detector DB is not received (S14), the process proceeds to step S17.

On the other hand, the setting device E continues the operation of receiving the response signal transmitted from the waterproof fire detector DB (S42), and when the response signal is received (S42), it indicates that the setting of the communication frequency has been completed. Displayed on the circuit 48 (S43), a necessary end operation such as erasing the display of the display circuit 48 is performed by the end operation, and the setting of the communication frequency is ended (S44).
Then, the waterproof fire detector DB performs a necessary end operation such as erasing the display of the display circuit 8 by bringing the magnet close to the reed switch 39 and turning on the reed switch 39 (S17), The communication frequency setting mode is terminated (S18), and the mode is switched to the monitoring mode as shown in FIG. 6 (S5). When the reed switch 39 is not turned on (S17), the process returns to step S14, and the communication frequency is continuously set.

  In the operation flowchart of FIG. 8, the setter E measures the electric field strength K by incrementing from the channel with the smallest number, and stops scanning the channel when the threshold value S is exceeded (S31 to S34). Although the signal analysis in the channel is performed (after S38), after scanning to the final channel, the channel of the maximum intensity may be set and the signal analysis of the channel may be performed.

  Then, when measuring the electric field strength K, it may be possible to receive noise other than the radio signal transmitted from the waterproof fire detector DB and radio signals of other terminal devices. When the setting mode start signal transmitted from the fire detector DB is not received, if the signal cannot be received for a predetermined time without continuing the reception operation until the signal is received, it is determined that the noise or the like has occurred. Then, it is possible to sequentially set a channel with a large electric field strength at the next point and determine whether or not a setting mode start signal transmitted from the waterproof fire detector DB can be received by analyzing the signal of the channel. .

  In the fire alarm facility configured as described above, each terminal device B, C, and D is set with an individual communication frequency for each group G. Each fire detector D monitors the presence or absence of a fire in its own monitoring area in the monitoring mode. When the fire detector D detects a change in the environment such as smoke or heat due to a fire, a wireless signal indicating the fire detection is transmitted using the communication frequency set in the group G. This wireless signal can be received by the repeater repeater C and the wireless repeater B in the group G, and the wireless repeater B receives the wireless signal via the necessary repeater repeater C or directly. . Then, detection information indicating fire detection is transmitted from the wireless repeater B to the fire receiver A via the signal line CL. Upon receiving fire detection information, the fire receiver A controls a sound alarm device (not shown) to notify the fire, and activates a fire door, smoke exhaust, shutter, etc. (not shown) to prevent the spread of fire. it can.

  As described above, the wireless waterproof device used in the present invention transmits and receives wireless signals to and from other devices (wireless repeater B, repeater repeater C, and setting device E). In a wireless waterproof device (waterproof fire detector DB) provided with a control unit (transmission / reception circuit 5) and a control unit (control circuit 31) for controlling the transmission / reception unit 5, it is stored in a sealed space 35 in the housing. And an operation signal output means (reed switch 39) for detecting an external factor and outputting an operation signal. When the operation signal is input, the control unit 31 is a wireless waterproof type. Among the communication frequencies that can be set as the communication frequency of the device DB, the transmission / reception unit 5 is set to a transmission / reception state of a communication frequency (default value) set in advance, and a wireless signal (setting mode start signal) indicating communication start is set. Send and receive When the wireless signal designating the communication frequency of the wireless waterproof device DB is received via the unit 5, the transceiver unit 5 is set to the transmission / reception state of the designated communication frequency. Without setting the operation signal output means 39 as a member exposed from the housing, the communication frequency can be set while satisfying the waterproof performance.

In addition, the wireless waterproof device DB used in the present invention includes a battery 2 that is housed in a sealed space 35 in the housing and supplies operating power, and the control unit 31 supplies power from the battery 2. A low power consumption mode that performs standby operation with lower power consumption than in normal operation in the received state is set at the time of shipment from the factory, and the low power consumption mode is canceled based on the operation signal. Without using the battery 2 as a member for exposure from the housing, the low power consumption mode is canceled by using the operation signal output means 39 as a member for setting the communication frequency while satisfying the waterproof performance. Can supply power.
The setting device E for the wireless waterproof device DB used in the present invention includes a transmission / reception unit (transmission / reception circuit 45) for transmitting and receiving wireless signals to and from other devices (wireless waterproof device DB), In the setting device E for a wireless waterproof device (wireless waterproof fire detector DB) including a control unit (control circuit 41) for controlling the transmission / reception unit 45, the control unit 41 includes the wireless waterproofing device. The transmission / reception unit 45 is cyclically switched to the transmission / reception state of all communication frequencies that can be set as the communication frequency of the type device DB, and a wireless signal (setting mode start signal) indicating the start of communication transmitted from the wireless waterproof device DB ), The transmitter / receiver 45 is set to the transmission / reception state of the communication frequency when the wireless signal indicating the start of communication is received, and the wireless signal specifying the communication frequency of the wireless waterproof device DB is transmitted. so Runode, allows the setting of the communication frequency of the wireless-type waterproof device DB.

  Further, in the setting device E for the wireless waterproof device DB used in the present invention, the control unit 41 sets the transmission / reception state of all communication frequencies that can be set as the communication frequency of the wireless waterproof device DB. By cyclically switching the transmission / reception unit 45 and measuring the electric field strength of the radio signal, it is determined whether or not the radio signal is received, and when it is determined that the radio signal is received, the radio signal is received. Since the transmission / reception unit 45 is continuously operated in the transmission / reception state of the communication frequency when it is determined that the wireless signal is determined, the content of the wireless signal is decoded, so that communication preset in the wireless waterproof device DB is performed. The frequency can be determined quickly, and the power consumption based on the reception operation of the transmission / reception unit 45 can be reduced.

  Since the wireless system used in the present invention includes the wireless waterproof device DB and the setting device E for the wireless waterproof device DB, the wireless waterproof device DB is waterproof. The communication frequency can be set while satisfying the performance.

  In the present embodiment, the control circuit 31 is described as being set to the stop mode in which the oscillation of the operation clock of the clock circuit is stopped as the low power consumption mode. For example, the mode may be a mode in which the oscillation of the operation clock of the clock circuit is slowed down or the operation of the circuit with large power consumption is stopped.

  In the present embodiment, the reed switch 39 is used as the operation signal output unit. However, the operation is stored in the sealed space 35 in the housing and switches the mode of the mode setting unit 31b due to a factor from outside the housing. Any device that outputs a signal may be used. For example, other non-contact type switches may be used.

  As an example, using a light emitter that outputs an optical signal by an operation input, the operation signal output means can be a light receiving element that receives the optical signal as a factor from outside the housing. In that case, the light receiving element exposes the light receiving surface from the housing, and the periphery thereof is sealed with the sealing member 34 so that the waterproof performance in the sealed space 35 is satisfied. The low power consumption mode is preferably a mode in which the light receiving element is intermittently activated.

  Further, as an example, using an electromagnetic induction signal output device (for example, a reader / writer) that outputs an electromagnetic induction signal by an operation input, the operation signal output means receives a non-electromagnetic induction signal as a factor from outside the housing. A contact IC tag can be used. In that case, the non-contact type IC tag is accommodated in the sealed space 35. The low power consumption mode is preferably a mode in which the non-contact type IC tag is intermittently started. However, it is the lead in the above embodiment that the non-contact type IC tag is supplied with current by electromagnetic induction. Like the switch 39, by inputting to the control circuit 31 as a port input, the stop mode can be adopted as the low power consumption mode, which is more preferable.

  Further, as an example, using the setting device E that outputs a radio signal by an operation input, the operation signal output means may be the transmission / reception circuit 5 that receives a radio signal as a factor from outside the housing. In this case, the transmission / reception circuit 5 is accommodated in the sealed space 35 as described in the above embodiment. The low power consumption mode is preferably a mode in which the transmission / reception circuit 5 is activated more intermittently than the monitoring mode or the like.

  The reed switch 39 has been described as an example of an operation signal output unit that detects a factor from the outside of the housing and outputs an operation signal. However, if interpreted more restrictively, the reed switch 39 is a setting disposed outside the housing. It can also be called detection means for detecting a member (such as a magnet) and outputting an operation signal. As this detection means, for example, a magnetic detection element such as a Hall element can be used.

  In the present embodiment, the waterproof fire detector DB is described as the wireless waterproof device. However, the wireless repeater B, the repeater repeater C, and other terminals that can be used for the fire alarm facility. The same configuration as that of the waterproof fire detector DB can be applied to the device.

  Further, in the present embodiment, the mode setting unit 31b switches between the low power consumption mode, the communication frequency setting mode, and the monitoring mode, but the mode switching order is not limited to the above embodiment.

  Further, in the present embodiment, the fire alarm facility has been described as an example, but any facility that detects and notifies an abnormality in the installation environment may be used, for example, a gas leak alarm facility using a gas leak detector and You can also

  In addition, as the fire alarm equipment in the present embodiment, any of the fire alarm equipment using a P-type receiver and the fire alarm equipment using an R-type receiver having a bidirectional communication function may be used. Can be applied.

  DESCRIPTION OF SYMBOLS 1 Control circuit, 1a Memory element, 2 Battery, 3 Constant voltage circuit, 4 Voltage detection circuit, 5 Transmission / reception circuit, 5a Transmission circuit, 5b Reception circuit, 6 Antenna, 7 Fire detection circuit, 7a Thermistor, 8 Indicator light circuit, 9 Communication frequency setting switch, 11 control circuit, 11a storage element, 20a power line terminal, 20b signal line terminal, 21 control circuit, 21a storage element, 22 receiver I / F circuit, 31 control circuit, 31a storage element, 31b Mode setting unit, 32 cover, 33 main body, 34 sealing member, 35 sealed space, 39 reed switch, 41 control circuit, 41a storage element, 45 transmission / reception circuit, 46 antenna, 48 display circuit, 49 operation circuit, 100 fire alarm Equipment, A Fire receiver, B Wireless repeater, C Repeater repeater, CL signal line, D Fire detection , DB waterproof fire detector, DC power supply line, E setter.

Claims (5)

In a wireless waterproof device including a transmission / reception unit that transmits / receives a radio signal to / from another device, and a control unit that controls the transmission / reception unit,
It is housed in a sealed space inside the housing, and includes an operation signal output means for detecting an external factor and outputting an operation signal.
The control unit sets the transmission / reception unit to a transmission / reception state of a preset communication frequency among communication frequencies that can be set as a communication frequency of the wireless waterproof device when the operation signal is input, and performs communication. When a radio signal indicating the start is transmitted and a radio signal specifying the communication frequency of the wireless waterproof device is received via the transmission / reception unit, the transmission / reception unit is set to a transmission / reception state of the specified communication frequency. Wireless waterproof device characterized by
It is housed in a sealed space inside the housing and has a battery that supplies operating power.
The control unit sets a low power consumption mode at the time of shipment from a factory to perform a standby operation that consumes less power than a normal operation in a state where power is supplied from the battery, and based on the operation signal, the low power consumption mode The wireless waterproof device according to claim 1, wherein the power mode is canceled.
In a setting device for a wireless waterproof device, comprising: a transmission / reception unit that transmits / receives a wireless signal to / from another device; and a control unit that controls the transmission / reception unit.
The control unit cyclically switches the transmission / reception unit to the transmission / reception state of all communication frequencies that can be set as the communication frequency of the wireless waterproof device, and indicates the start of communication transmitted from the wireless waterproof device When receiving a signal, the transmitter / receiver is set to a transmission / reception state of a communication frequency when a wireless signal indicating the start of communication is received, and a wireless signal designating a communication frequency of a wireless waterproof device is transmitted. A setting device for wireless waterproof devices.
The control unit cyclically switches the transmission / reception unit to the transmission / reception state of all communication frequencies that can be set as the communication frequency of the wireless waterproof device, and measures the electric field strength of the radio signal, thereby When it is determined whether or not it has been received, and when it is determined that the wireless signal has been received, in the transmission and reception state of the communication frequency when it is determined that the wireless signal has been received, the transmission / reception unit is continuously operated, The wireless waterproof device setting device according to claim 3, wherein the wireless signal decrypts the content of the wireless signal.
  A wireless system comprising the wireless waterproof device according to claim 1 and the setting device for the wireless waterproof device according to claim 3.

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