JP2007179463A - Fire alarm system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire alarm system, capable of imparting, to a receiver of a fire alarm device, the capability of supplying a monitoring service enabling even a client terminal on a network to perform sensor or line monitoring which is performed by the receiver according to a request from the client terminal. <P>SOLUTION: An information processing computer 10 comprises a communication port 13 communicating with a host computer 3, and an interface module 15 which stores specifications information including service contents related to monitoring of detection level or line reporting of a sensor 5 usable on the host computer 3 side and control of smoke-prevention and exhaustion equipment or the like, and a definition for a supporting interface in a storage part 12, and provides the monitoring service of transferring, upon receipt of a request of monitoring or control by an access according to a specification defined in the interface definition from the host computer 3, data showing the detecting level state or line reporting state of the sensor 5 to the host computer 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  It is an object of the present invention to provide a fire alarm system that enables access to a fire alarm receiver via a computer network.

  In addition to a system that generates a line alarm signal by setting a voltage value or current value of a line to a predetermined level, the fire alarm system also uses a system that uses a multiplex transmission signal that is superimposed on the line and transmits information. A fire alarm system has been conventionally provided (for example, Patent Document 1).

This patent document 1 also discloses a system in which a plurality of receivers are monitored by a central monitoring control device.
JP-A-60-231398 (Gazette (3), page 11, upper right column, line 11 to lower left column, line 15; (5) page, upper right column, line 17 to lower left column, line 2)

  By the way, in the structure which monitors the some receiver currently disclosed by patent document 1 with a central supervisory control apparatus, information exchange by a time division multiplex transmission signal is performed between a receiver and a central supervisory control apparatus. Therefore, it is assumed that the central monitoring and control device will be installed at a disaster prevention center in a building where a fire alarm device (fire alarm system) is installed. Information status and sensor status were not monitored.

  Therefore, a system capable of monitoring equivalent to a receiver of a fire alarm device in response to a request from a terminal connected on a network such as the Internet has been desired.

  The present invention has been made in view of the above-mentioned problems, and its purpose is to monitor the detector and the line performed by the receiver of the fire alarm device in response to a request from a client terminal on the network. It is an object of the present invention to provide a fire alarm system capable of providing a receiver with the capability of providing a monitoring service that can be performed by a client terminal.

  In order to achieve the above object, in the invention of claim 1, a detector for detecting a fire element such as smoke or heat and sending detection information on the line, and detection information received via the line. A network connection between the fire alarm device comprising the information processing computer for determining the alarm notification based on the connection to the line and the information processing computer of the receiver A host computer constituting a computer system, and the information processing computer includes a communication unit for communicating with the host computer side, and monitoring of the sensor usable on the host computer side. A storage unit storing specification information including the contents of the service and the definition of a supported interface, and an interface from the host computer When there is a request for a monitoring service by access according to the specification stipulated in the definition, the monitoring data indicating the detection level of the analog detection means of the sensor and the line alert state is sent to the host computer side through the communication unit. An interface module that provides a monitoring service to be transferred, the host computer having a communication unit that communicates with a communication unit of the information processing computer, and a request for the monitoring service from a client terminal connected by a network Stipulated in the interface definition selected based on the server definition that provides the monitoring data transferred from the information processing computer to the client terminal and the identifier of the interface definition obtained from the information processing computer According to the specifications An access controller that performs a request based on a monitoring service request received by the server unit from the client terminal from the communication unit of the host computer to the interface module through the communication unit of the information processing computer. The interface module is accessed by a function of a device object.

  According to the first aspect of the present invention, the software provided in the information processing computer of the receiver of the fire alarm device with limited capability is distributed through the larger network computer system by installing the software. It is possible to strengthen the monitoring capability of limited information processing computers, and to build a system that allows a client terminal in a remote location to easily perform monitoring equivalent to the monitoring with a fire alarm device through a host computer In particular, it is possible to monitor the detection information of the sensor as if the receiver of the fire alarm device existing at a remote location on the network as seen from the client terminal is in the hands of the client terminal.

  According to a second aspect of the invention, in the first aspect of the invention, the sensor outputs an analog detection means for outputting an electric quantity corresponding to the detection amount of the fire element as a detection level, and the detection level of the analog detection means is digital. An information transmission unit for converting data into a signal and returning the data obtained by the conversion by the multiplex transmission signal during a return period provided in the multiplex transmission signal when accessed by the multiplex transmission signal from the receiver side Monitoring means for transmitting the multiplexed transmission signal for accessing each sensor connected to the line and monitoring data from the sensor returned during the return period. And the information processing computer makes a judgment of alarm generation based on the monitoring result of the monitoring means.

  According to the invention of claim 2, it is possible to know the detection amount of the fire element detected by the sensor at the client terminal.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the server comprises a web server that provides a web interface to the client terminal.

  According to the invention of claim 3, monitoring and control requests and information browsing can be performed through the web browser on the client terminal side, and the operability is excellent.

  The present invention incorporates software in the information processing computer of the receiver of the fire alarm device with limited capability, thereby distributing the service provided by the fire alarm device via a larger network computer system, thereby limiting the limited information. The monitoring capability of the processing computer can be strengthened, and it becomes possible to construct a system in which a client terminal at a remote location can easily perform monitoring equivalent to the monitoring with a fire alarm device through a host computer. There is an effect that the detection information of the detector can be monitored as if the receiver of the fire alarm device existing in the remote place on the network as seen from the terminal is in the hands of the client terminal.

  The present invention will be described with reference to embodiments.

(Embodiment 1)
As shown in FIGS. 1 and 2, the fire alarm system of this embodiment includes a fire alarm device A that monitors the sensor 5 using a time-division multiplexed transmission signal Vs (see FIG. 3), and the fire alarm device A. Information processing computer 2, host computer 3 and client terminal 4 connected to host computer 3 via network NT, and information processing computer 2 The host computer 3 and the client terminal 4 constitute a network computer.

  The fire alarm device A is similar to the fire alarm system disclosed in Patent Document 1 described above except that the receiver 1 includes an information processing computer 2 that constitutes a host computer 3 and a network computer. A sensor 5 for detecting a fire element such as heat is connected to the line L.

  Here, the basic configuration of the fire alarm device A will be briefly described.

  The sensor 5 uses a sensor having a function corresponding to a system using a time division multiplex transmission signal and a system using a line alarm signal. As shown in FIG. 4, the sensor 5 includes a sensor unit 6, an information transmission unit 7, and a line alarm output unit 8, and the sensor unit 6 includes a photoelectric head 60 and an output from the head 60. The analog detection circuit includes an amplification circuit 61 that amplifies a signal, and an analog output circuit 62 that outputs the output of the amplification circuit 61 after performing a correction such as temperature correction. Level judgment circuit 63 that compares the output of the signal with a reference value to discriminate the level of the line alarm, a timing pulse generation circuit 64 that generates a timing pulse, and a light emitting unit of the head 60 by the timing pulse of the timing pulse generation circuit 64 A timing for setting the light emission timing of 60a and the light reception timing of the light receiving unit 60b and the amplification timing of the amplifier circuit 61 in accordance with the light emission timing. A grayed setting circuit 65, and a time determining circuit 66 for determining the period for level determination by the level determining circuit 63 counts the timing pulses.

  The information transmission unit 7 is connected to the A / D converter 70 for A / D converting the detection level output from the analog output circuit 62, and the line voltage of the line L is changed to the second line voltage VL described above. In order to receive and demodulate the transmission signal Vs shown in FIGS. 3 (a) and 3 (b) that has been transmitted while being superimposed during the voltage period, and modulate the return data and superimpose it on the line L. If the transmission signal transmission / reception circuit 71 of the transmission signal and the address signal AD of the transmission signal Vs received and demodulated by the transmission signal transmission / reception circuit 71 are compared with a preset address, the control signal CD is read and the control signal CD is read based on the control signal CD. The 1-bit signal that converts the detection level obtained by / D conversion into predetermined bit, for example, 7-bit serial pulse data, and indicates the presence / absence of a line alarm signal from the line alarm output unit 8 to be described later A CPU that outputs to the transmission signal transmission / reception circuit 71 during the reception period of the long pulse RT that sets the return waiting period as a return signal for returning the return data consisting of the serial pulse signal shown in FIG. And a signal processing circuit 72 comprising:

  When the determination signal indicating that the detection level exceeds the reference value is input from the level determination circuit 63, the line alarm output unit 8 short-circuits the line L through an impedance as appropriate, and lowers the line voltage to a predetermined level. 1 and a line alarm output circuit 80 for outputting a line alarm signal to the information transmission unit 7. Of course, a line alarm output circuit that increases the line current and uses the line current as a line alarm signal may be used.

  The receiver 1 is coupled to a line L as shown in FIG. 1, and a voltage switching circuit 20 that switches the line voltage of the line L between the first line voltage VH and the second line voltage VL, and the line L A line alarm signal detection unit 21 that detects a voltage and detects that the line voltage is below a predetermined level (or a line current is above a predetermined level) to detect a line alarm signal, and modulates the transmission signal Vs The transmission signal transmitting / receiving unit 22 that demodulates the return signal that is sent back and sent back, the coupling circuit 23 that superimposes the transmission signal Vs on the line L and extracts the returned return signal, and the superposition of the transmission signal Vs A timing pulse generation circuit 24 that generates timing pulses for timing and voltage switching timing of the line L, and a transmission signal Vs that calls each sensor 5 and requests return of a return signal are created. For information processing to discriminate the returned detection level and perform processing such as forecasting according to the level, notification of this alarm, other control, and processing at the time of detection of the line alarm signal And a computer 10.

  Next, the operation of the fire alarm device A composed of the receiver 1 and the sensor 5 will be described.

  Normally, each sensor 5 connected to the line L performs a time division multiplex transmission system operation, and the receiver 1 performs each operation of detection of a line alarm signal and information transmission processing by the transmission signal Vs. It is like that.

  That is, in the receiver 1, under the control of the information processing computer 10, the voltage switching circuit 20 changes the line voltage between the first line voltage VH and the second line voltage VL by the timing pulse output from the timing pulse generation circuit 24. As shown in FIG. 3 (a), an operation of switching at a predetermined timing is performed, and during the period of the second line voltage VL, information is transmitted to and from each sensor 5 by the transmission signal Vs and a line alert signal is detected. Maintain possible state.

  On the other hand, each sensor 5 transmits information of the detection level by the transmission signal Vs, and returns the detection level to the receiver 1 by a return signal, and the level determination circuit 63 determines the level of the detection level. Here, threshold setting such as fire determination by information transmission is performed on the receiver 1 side, and the setting of the alarm level of the line alarm signal is set according to the determination reference value of the level determination circuit 63 on the sensor 5 side.

  The information processing computer 10 of the receiver 1 discriminates the detection level in the return data from the sensor 5 captured via the transmission signal transmitting / receiving unit 22 and outputs an alarm signal corresponding to the level to the outside, or Outputs a control signal for controlling smoke control equipment to the outside.

  Further, the detection level in the sensor unit 6 of the sensor 5 exceeds the reference value of the level determination circuit 63 and a determination output is generated from the level determination circuit 63, and the line alarm output circuit 80 short-circuits the line L through an appropriate impedance. When the line alarm signal is issued to the receiver 1, the information processing computer 10 of the receiver 1 performs signal processing based on the line alarm signal detected by the line alarm signal detector 21, and the alarm described above. The signal is output to the outside and the control signal is output to the outside.

  Here, the line alert signal and detection level are transmitted simultaneously by information transmission, so even if there is a problem with the circuit that detects the line alert signal due to a change in the line voltage, the line alert is detected on the receiver side. can do. If the circuit of the line alarm signal is alive even if a circuit trouble occurs in the multiplex transmission system, the multiplex transmission system can be backed up to prevent the system from going down.

  Further, since the reference value of the level determination circuit 63 can be set regardless of the threshold setting on the receiver 1 side during information transmission by time division multiplex transmission, the operation is performed with the alert level set to either high sensitivity or low sensitivity. In addition, if the discrimination level of the transmitted detection level is set to be different from the notification level, various information processing can be performed. Also, it is possible to make a fire determination with few false alarms by selecting a line determination signal, a detection level discrimination, or a combination of both according to the situation of the monitoring area.

  Further, since the receiver 1 uses both a system based on time division multiplex transmission of the transmission signal Vs and a system based on the transmission of the line alarm signal, both systems work. 2 and the analog type sensor 5 are connected to the line L, the operation of these sensors 2 and 5 can be monitored.

  The head 60 of the above embodiment includes a light receiving unit 60b and a light emitting unit 60a, and uses a photoelectric head that outputs an electric quantity corresponding to a light receiving level corresponding to the concentration of invading smoke as a detection level. An ion type head composed of an ion chamber may be used. Also, a flame sensor head that detects a fire by a change in the dose of infrared rays by infrared rays may be used instead of smoke detection.

  In the embodiment, the line voltage of the line L is switched between the first line voltage VH and the second line voltage VL to determine the time period for superimposing the time-division multiplexed transmission signal Vs. The transmission signal Vs may be superimposed on the line L in order to be transmitted.

  Further, in the embodiment, the information of the line notification is transmitted also by time division multiplex transmission, but the information transmission may of course be only the detection level. Also, in a normal state, one circuit unit of the line alarm signal system or the time division multiplex transmission system is operated, and when an abnormality in the operating system is detected, the other circuit unit is operated. good.

  The information processing computer 10 of the receiver 1 of the fire alarm device is connected to the communication port 30 of the host computer 3 via any communication path such as RS232, RS485, power line, wired connection, wireless connection or the like. It has. Of course, when the information processing computer 10 and the host computer 3 are installed at locations separated from each other, they may be performed through a network such as a LAN or WAN (Internet).

  The client terminal 4 is connected to the host computer 3 from a remote location via a network NT such as a LAN or WAN (Internet), and forms a network computer system B with the host computer 3 and the information processing computer 10. . The client terminal 4 may have the function of the host computer 3.

  With such a configuration, the user can monitor the sensor 5 and the line L provided by the fire alarm device A by the information processing computer 10 of the receiver 1 of the fire alarm device via the host computer 3 by the client terminal 4. In addition, it is possible to access services related to the control of smoke control equipment from a remote location.

  Here, FIG. 1 shows a conceptual block diagram including the main hardware and software elements of the client terminal 4, the host computer 3, and the receiver 1.

  As shown in the figure, the information processing computer 10 of the receiver 1 receives and transmits the transmission signal Vs handled by the fire alarm device A and the return data to be returned via the transmission signal transmitting / receiving unit 22 as described above. The line alert signal is fetched as a detection signal from the line alert signal detector 21.

  The embedded application program 14 incorporated in the information processing computer 10 has an execution command for directly transmitting / receiving data to / from the transmission signal transmission / reception unit 22 and the line alert signal detection unit 21 and transmits / receives data using the transmission signal Vs. As described above, line alert signal detection is monitored.

  The information processing computer 10 stores basic information about the characteristics and capabilities of the information processing computer 10 itself in the storage unit 12 as a capability table T1. The capability table T1 may be stored as a file, or may be stored as data compiled with the application program 14, and further stored in a storage device (not shown) outside the information processing computer 10. You may do it. Table 1 shows an example of the capability table T1.

  As shown in Table 1, in the capability table T1, the field of the interface definition indicating the interface definition supported by the information processing computer 10 according to (1A) and its use are sufficiently shown. In the capability table T1, (1B) indicates identification in the byte array format, (1C) indicates device identification indicating what the device is for the specific information processing computer 10, and (1D) indicates information This is a device address written when the processing computer 10 has an address. Also, the version number (1E) of software used for securing the compatibility of the application program 14 or the like may be written. Similarly, the communication protocol version number (1F) may be written. Further, details about the communication may be stored, and the maximum communication packet size indicated by (1G) may be written.

  This capability table T1 transfers the data of the capability table T1 to the host computer 3 side in response to a request from the host computer 3, and confirms the characteristics and capabilities of the information processing computer 10 on the host computer 3 side. It can be done.

  The service of the fire alarm device A provided by the information processing computer 10 (monitoring the detection level of the sensor 5 and the line alarm signal) by the application program running on the client terminal 4 and / or the host computer 3 Monitoring, and control of smoke control equipment).

  This monitoring service has different functions, variables, events and / or files. For example, the user may desire to monitor the detection level of a specific sensor 5, but services that the user may need to access are listed as a service table T2 in this embodiment.

  The service table T2 is stored in the storage unit 12 of the information processing computer 10. In this case, the service table T2 may be stored as a file, or stored as static data compiled with the application program 14. The information may be stored in the unit 12 or may be stored in a storage device (not shown) outside the information processing computer 10.

  Table 2 shows an example of the service table T2.

  As shown in Table 2, the service table T2 is written with the name or identification of the service, the type of service (for example, whether it is a function, a variable, an event or a file), and if necessary. Information such as input parameter type, return type, and service address may be included.

  Here (2A) shows information about the function "Function", i.e. it is a function, it takes a word as an input parameter and it returns nothing (no), its address is & Function It is shown that.

  Further, (2B) indicates information on another function “Function B”. Appropriate information about the variables is shown in (2C) and (2D).

  Information about the event is shown in (2E) and (2F). The event shown here may be any kind of data. For example, an event can be a variable, a specific register, an interrupt, or the like. An event is particularly useful for items that occur asynchronously, such as a change in a reference value for discriminating the detection level of the sensor 5 and determining whether a warning or a warning is issued. Information about a specific file is shown in (2G) and (2H).

  By storing information about the monitoring and control service of the fire alarm device A in the service table T2 in the storage unit 12 of the information processing computer 10, the host computer 3 can use the information processing computer 10 to determine what service. Can be easily confirmed.

  Here, the application program 14 of the information processing computer 10 defines a service, and the service table T2 functions to provide information about a specific service, and this information is a client connected to the host computer 3. This is useful for the user of the service terminal 4. Of course, it is also useful for the user (administrator) of the host computer 3.

  The interface module 15 as software incorporated in the information processing computer 10 accesses between the service provided through the information processing computer 10 and the host computer 3 (software that runs on the information processing computer 10). The information in the service table T2 is used to access a desired service of the processing computer 10 and the communication module 16 realized by software incorporated in the information processing computer 10 and the hardware communication port 13 are used. Communication with the host computer 3 is performed. Instead of the communication module 16, the interface module 15 may have a communication code necessary for direct interface connection with the communication port 13 in the information processing computer 10. The communication module 16 or the communication code accesses the communication port 13, and the data is given to the communication port 13 by a data piece formatted in an appropriate size, and the data received at the communication port 13 is read correctly. It is guaranteed.

  The information processing computer 10 and the host computer 3 constituting the network computer system B are connected to the communication port 30 of the information processing computer 10 through the communication port 30 and the information processing computer 10 for information processing. The communication module 31 includes software for communicating with the computer 10, and the communication module 31 is the same as the communication module 16 of the information processing computer 10, and is written to or read from the communication port 30. This is to correctly create the format of the data to be issued.

  Further, the host computer 3 makes a list request for the service table T2 stored in the storage unit 12 to the information processing computer 10 and transfers it in order to access the service provided by the information processing computer 10. Service information 32 is created. This service information 32 indicates what services are available in the fire alarm device A and what data types, if any, are used in each service. This facilitates access to the information processing computer 10 via the host computer 3. The process for creating the service information 32 is executed as an initial process of the host computer 3, and this execution is instructed by the access controller 33 in the host computer 3. The access controller 33 controls processing operations of the host computer 3 and is configured by executing corresponding software.

  Here, the host computer 3 communicates with the client terminal 4 so that the client terminal 4 can access the service provided by the information processing computer 10. A web server 34 is provided to facilitate access by. This web server 34 provides a web interface for services in the information processing computer 10, for example, the detection level status display of the detector 5 in the fire alarm device A, the notification status display, Provides a web page for inputting control instructions for smoke control equipment. That is, the access controller 33 creates a web page from services available on the information processing computer 10, and the web server 34 services the request of the client terminal 4 for the created web page presentation.

  Further, the host computer 3 includes a device access server 35 in order to service a client request for the service of the information processing computer 10, and the device access server 35 accesses the service information 32, and this service information 32 is made available to the user of the client terminal 4.

  The client terminal 4 constituted by a personal computer has a client application 40 composed of a web browser and a network communication port 4, and the communication port 41 is a host for accessing the service of the information processing computer 10. It communicates with the device access server 35 of the computer 3. The client application 40 uses the communication port 41 to obtain information about the service, and accesses data from the web server 34 built in the host computer 3.

  The host computer 3 described above encapsulates the transferred service information 32 by executing a software object.

  That is, the service information 32 is encapsulated by executing a software object (hereinafter referred to as an object) 36 stored in the host computer 3, and this object 36 is at least one of the fire alarm device A including the information processing computer 10. A part of the object 36 is mainly used for accessing a service provided from the information processing computer 10. By realizing the object 36 on the host computer 3, the software developer is provided with the benefits of object-oriented analysis and design without using the resources of the information processing computer 10 on the receiver 1 side. become.

  Here, the object 36 is described in a data structure, and one object 36 is an abstract data format that encapsulates data and / or functions, and member components (encapsulated functions, variables, data, etc.) are hosts. Stored in a storage unit (not shown) on the computer for information processing 3, and at least one member component communicates with the information processing computer 10 to retrieve the data of the information processing computer 10 and process the information processing computer 10 Change the above data or execute the code. That is, the object 36 functions in part to carry data, functions and / or events of the information processing computer 10.

  The service table T2 on the information processing computer 10 side and the service information 32 created by the host computer 3 are the services provided by the information processing computer 10 by the object 36 for the software and client that operate on the host computer 3. It is possible to associate with both or one of the software running on the terminal 4.

  In this way, data and / or functions of the information processing computer 10 are distributed over the network. Only necessary data is stored in the information processing computer 10, and only executable code that needs to be stored on the information processing computer 10 is stored in the information processing computer 10. As a result, data and functions are distributed between the information processing computer 10 and the host computer 3 constituting the network computer system B to minimize the resources of the information processing computer 10, and the data in which the object 36 is distributed and The function can be accessed by the host computer 3.

  Thus, in order to execute the software installed in the host computer 3 constituting the fire alarm device A and the network computer system B, the user moves the host computer 10 as shown in step S1 of FIG. Start up and activate the access controller 33 and the communication port 30. As a result, the interface module 15 of the information processing computer 10 is reset (step S2). In response to this reset, the interface module 15 of the information processing computer 10 returns confirmation of the reset to the access controller 33 of the host computer 3.

  The access controller 33 requests transfer of the performance table T1 and the service table T2 (steps S3 and S4). In response to this request, the interface module 15 transfers these tables T1 and T2 from the storage unit 12 to the host computer 3. As a result, the software executed by the host computer 3 knows what capability (interface) the information processing computer 10 of the receiver 1 has, and a fire alarm device provided by the information processing computer 10 Service information 32 relating to the service at A is created by the object 36 and held in a storage means (not shown) (step S5). The access controller 33 of the host computer 3 can create a web page for presenting the service information 32 on the client terminal 4 and send it to the client application 40 of the client terminal 4 via the web server 34. To do. The service information 32 described above is encapsulated by an object 36. In addition, the wave server unit 34 and the device access server 35 are activated (steps S6 and S7). Thereafter, when the software operates on the host computer 10, it operates to service the received request (step S8).

  On the other hand, a user seeking a service activates the client application 40 and / or the device access client 42 on the client terminal 4.

  FIG. 5B shows a flowchart of a procedure for obtaining a variable value for a service from the information processing computer 10.

  First, unless the client application 40 has already recognized a service in the information processing computer 10, the client application 40 requests a list of service tables T2 that can be used in step S10. Any of the web server 34, the device access server 35, or a similar server receives the request and reads the service information 32 created by the object 36 (step S11).

    Subsequently, the server 34 or 35 sends the service information 32 to the client terminal 4 (step S13). Once the client terminal 4 knows what services are available on the information processing computer 10, the client terminal 4 requests data and / or operation relating to the service. That is, the client terminal 4 requests specific variable values corresponding to them. (Step S12). The user uses the client application 40 of the client terminal 4 to know the event state or data state (change in the detection level of the sensor 5 or the current state) in the information processing computer 10. A specific variable value is requested to (step S13).

  The server 34 or 35 receives a request regarding a specific variable value (step S14), and requests the variable value from an appropriate object 36 (step S15). Upon receiving this request, the object 36 sends a message to the interface module 15 incorporated in the information processing computer 10 corresponding to the requested variable value (step S16). The interface module 15 of the information processing computer 10 that has received this message in step S17 accesses the variable and reads the value contained therein (step S17). The interface module 15 sends the read variable value back to the object 36 of the host computer 10 through the communication path (step S18). When the object 36 receives this variable value, it returns the variable value to the server 34 or 35 (step S19). Subsequently, the server 34 or 35 responds to the request from the client terminal 4 and sends the variable value to the software constituting the client application 40 or the device client 41 of the client terminal 4.

  Here, if the object hierarchy is used to extend the capabilities of the object, the object 36 performs further processing on the data before returning the data to the server 34 or 35.

  Thus, in the system according to the present embodiment, the sensor 5 of the fire alarm device A detects the information processing computer 10 of the receiver 1 of the fire alarm device A through the host computer 3 from the client terminal 4. By requesting level status data and line alert information, that is, monitoring data, or by requesting control of a predetermined smoke control device, it is possible to monitor the detection level and line alert of the sensor 5 even at a remote location. This makes it possible to control smoke control equipment.

  In this embodiment, the application program 14 of the information processing computer 10 of the receiver 1 of the fire alarm device A with limited capability, the software related to the interface module 15 (related to the communication modules 13 and 30), and the client The service provided by the fire alarm device A to enhance the monitoring and control capability of the limited information processing computer 10 is incorporated via the larger network computer system B by incorporating the client application 40 of the terminal 4 for each. For example, the storage capacity of the data relating to the fire alarm device A can be increased by storing it on the host computer 3, and the interface with the information processing computer 10 and the ease of communication are increased. Possible and To have. Service information provided by the fire alarm device A is encapsulated by the host computer 3 and presented to the client application 40 of the client terminal 4 so that the service of the fire alarm device A is easier through the information processing computer 10. Can be accessed.

It is a notional block diagram of Embodiment 1 of the present invention. 1 is an overall configuration diagram of a system according to a first embodiment. It is explanatory drawing of the transmission signal used with the fire alarm device of Embodiment 1. It is a block diagram of the sensor used with the fire alarm device of Embodiment 1. 3 is a flowchart for explaining the operation of the first embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Receiver 10 Information processing computer 12 Memory | storage part 13 Communication port 14 Application program 15 Interface module 16 Communication module 20 Voltage switching circuit 21 Line alert signal detection part 22 Transmission signal transmission / reception part 23 Coupling circuit 24 Timing pulse generation circuit 3 For hosts Computer 30 Communication port 31 Communication module 32 Service information 33 Access controller 34 Web server 35 Device access server 36 Object 4 Client terminal 40 Client application 41 Device access client 5 Sensor L Line A Fire alarm device B Network computer system

Claims (3)

A sensor that detects fire elements such as smoke and heat and sends detection information on the line,
A fire alarm device comprising the receiver and an information processing computer for determining the occurrence of an alarm based on detection information received via the line, and the receiver connected to the line;
A host computer constituting a network-connected computer system with the information processing computer of the receiver;
The information processing computer includes a communication unit for communicating with the host computer side, service contents related to monitoring of the sensor available on the host computer side, and definitions of supported interfaces. When there is a request for a monitoring service by an access in accordance with a specification stipulated in an interface definition from the host computer and a storage unit storing specification information, monitoring data indicating detection information of the sensor is sent to the host An interface module that provides a monitoring service to be transferred to the computer side through the communication unit,
The host computer receives a request for the monitoring service from a communication unit that communicates with a communication unit of the information processing computer and a client terminal connected by a network, and is transferred from the information processing computer. A server unit for providing monitoring data to a client terminal; and access according to a specification stipulated in the interface definition selected based on an identifier of the interface definition obtained from the information processing computer. An access controller that makes a request based on a monitoring service request received by the server unit from the client terminal from the communication unit to the interface module through the communication unit of the information processing computer. Fire Warning System access module, which comprises carrying out by the functioning of the device object. The sensor is an analog detection unit that outputs an electric quantity corresponding to the detection amount of the fire element as a detection level, and converts the detection level of the analog detection unit into a digital signal, and the data obtained by the conversion is converted into data. An information transmission unit that returns by the multiplex transmission signal during a return period provided in the multiplex transmission signal when there is an access by the multiplex transmission signal from the receiver side,
The receiver includes monitoring means for transmitting the multiplexed transmission signal for accessing each sensor connected to the line and monitoring data from the sensor returned during the return period, 2. The fire alarm system according to claim 1, wherein the information processing computer makes a judgment of alarm generation based on a monitoring result of a monitoring means. 3. The fire alarm system according to claim 1, wherein the server is a web server that provides a web interface to a client terminal.

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