JP2981072B2 - Disaster prevention monitoring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disaster prevention monitoring device for collecting terminal information by a call from a receiving side and centrally monitoring an abnormality such as a fire.

[0002]

2. Description of the Related Art Conventionally, as this kind of disaster prevention monitoring device,
For example, JP-A-1-159797 is known. In this disaster prevention monitoring device, the receiver outputs a terminal information acquisition command to all fire sensors, and each fire sensor detects the detection amount related to the fire phenomenon when it receives the acquisition command from the receiver. After that, the information held in the terminal is collected by polling from the receiver. Therefore, even when the terminal information is collected by polling, the data acquisition time can be matched by all the sensors.

The specific operation of data acquisition performed simultaneously by the detection sensors is as follows. A fire sensor that has received an acquisition command from a receiver outputs a detection command to a fire detection unit to detect a sensor level. A conversion command is output to an analog converter, and the detected analog level is converted into digital detection data and stored in the RAM.

[0004]

However, in collecting terminal information in such a conventional disaster prevention monitoring device, since all fire sensors simultaneously perform data acquisition operations according to an acquisition command from a receiver, The current consumption of the sensor flows intensively at one time, and the current consumption at the time of data acquisition also increases according to the number of connected sensors, which places a burden on the power supply of the receiver. Increasing the power supply capacity to match the simultaneous data acquisition operation has the problem of increasing costs.

The present invention has been made in view of such a conventional problem, and enables detection data to be collected at almost the same time without imposing a load on a power supply even if the number of connected detectors increases. It is an object of the present invention to provide a disaster prevention monitoring device.

[0006]

FIG. 1 is a diagram illustrating the principle of the present invention. First, according to the present invention, a plurality of
An information collection instructing means 3 for instructing a receiving means 1 to simultaneously instruct a plurality of terminals to collect information at a predetermined timing is provided for a disaster prevention monitoring device which collects terminal information by sequentially making a call by designating an address to the terminal 2. Provided, and the terminal 2
Upon receiving a collection command in the terminal information, the information gathering means (4) for holding the collecting <br/> information after elapse of a preset specific time differs for each terminal, the self by addressing the receiving means 1 characterized by providing a response unit 5 for transmitting the information that holds the information collecting unit 4 when receiving a call.

Here, the information collecting instruction means 3 of the receiving means 1
Instructs all terminals 2 to collect information. In this case, the information collecting means 4 of the terminal 2 uses a unique time based on its own address.
It is characterized in that information is collected and retained after elapse . The plurality of terminals 2 are divided in advance into a plurality of groups.
The group address is set, and the information collecting means 4
When the terminal information collection command is received,
Information after the elapse of a specific time based on the
It is characterized by holding .

[0008] The terminal collected information includes normal information, abnormal information such as fire, or fault information such as disconnection. In this case, the information collecting means 4 of the terminal determines whether there is an abnormality such as fire from the collected information. Immediately sends the abnormality detection information to the receiving means 1 by the interrupt processing. Specifically, terminal 2
Is connected to the signal line from the receiving means 1 and is connected to the information collecting means 4
And a detector connected to the line from the repeater and detecting an abnormality such as a fire, and the information collecting means of the repeater receives a terminal information collection command when receiving a terminal information collection command. And an A / D converter for sampling a detection signal from the detector after a predetermined elapse of a predetermined time and performing A / D conversion, and a storage for storing conversion data from the A / D converter.

The AD conversion means of the repeater has a plurality of input ports for individually connecting the detectors, and upon receiving a terminal information collection instruction, sequentially converts the detection signal of each input port into an AD signal and stores it in the storage means. Store. Specifically, one or more on / off fire detectors and / or fire transmitters are connected to the input port of the AD conversion means via a detector line, and the normal level, fire detection level, or disconnection level is detected. Convert to digital detection data.

Further, the terminal includes an analog sensor connected to the receiving means 1 and provided with the information collecting means 4 and the responding means 5. That is, it is an analog sensor having a function as a repeater. The receiving means 1 of the present invention comprises only a receiver, and comprises a receiver and one or a plurality of relay boards as local receivers connected to a transmission path from the receiver, or mutually connected by a transmission path. It takes any form of configuration with only a plurality of local repeaters as local receivers.

[0011]

According to the disaster prevention monitoring device of the present invention, when information collection is instructed to the terminal from the receiving side, a plurality of terminals to which the instruction is applied receive, for example, a unique address corresponding to the self address from the instruction reception. After a lapse of time, the detection signal is sampled, A / D converted into digital detection data, and stored in the memory. At the same time, the number of terminals that collect information is reduced by a number corresponding to the power supply capacity of the receiving side. By keeping the range, it is possible to collect detection data at a plurality of terminals at almost the same time without imposing a load on the power supply.

[0012]

FIG. 2 is an explanatory diagram showing the overall configuration of the present invention. In FIG. 2, reference numeral 10 denotes a receiver, and a repeater 14 as a terminal is connected to a transmission line 12 drawn from the receiver 10.
The analog smoke detector 16, the analog heat sensor 18, and the control repeater 20 are connected. A sensor line 22 is drawn out of the repeater 14, and the on / off sensors 24-1, 24-2, 24-3,... Are connected to the sensor line 22. Further, the sensor line 22 is provided with a transmitter 26 for transmitting a fire signal by a switch operation.

On the other hand, the receiver 10 is provided with a control unit 32 using a CPU.
Operation unit 36, sound unit 3 that outputs an alarm and a voice message
8 and a power supply unit 40 are provided. The control unit 32 of the receiver 10 performs polling for collecting terminal information by a call specifying a terminal-side address. In this polling, the information collection instruction unit 3 provided as a function of the control unit 32 issues a collective information collection instruction to all terminals at a fixed period, for example, every second, and based on the information collection instruction, the terminal side. Then, the collection and holding of the detection data are performed at substantially the same time. Then, after the information is collected, the detected terminal information held in the terminal side is sent to the receiver 10 through normal polling.

In the embodiment shown in FIG. 2, a repeater 14 for an on / off sensor, an analog smoke detector 16,
Although different terminals such as the analog heat sensor 18 and the control repeater 20 are connected, the functions as the repeaters for the information collection command and the call command from the receiver 10 are all the same, so that the receiver 10 When viewed, a series of terminal addresses are set for each terminal on the transmission line 12, and for example, 127 addresses of addresses 1 to 127 are used.

A relay 14, an analog smoke detector 16, and an analog heat detector 18 connected as terminals to the receiver 10.
The control repeater 20 has the functions of the information collection means 4 and the response means 5 shown in the principle explanatory diagram of FIG. 1 corresponding to the information collection command part 3 provided in the control part 32 of the receiver 10. Have been. The information collecting means on the terminal side is the receiver 10
When the information collection command is received from the information collection command unit 3 in the relay unit 1, for example, when a predetermined specific time elapses, for example, a predetermined specific time corresponding to the repeater address,
If it is 4, the line voltage of the sensor line 22 is sampled and converted into digital data by AD conversion.
It is stored in a memory such as AM.

As a response means provided on the terminal side, when a call specifying the repeater address is received from the control unit 32 of the receiver 10 and the address coincides with the own address, the response is currently held in the memory. The detection data is sent back as terminal information. FIG. 3 is a time chart showing a normal calling operation performed between the receiver 10 of FIG. In FIG. 3, a receiver 10 includes a calling command C1 and terminal addresses A1, A2,
.. Are sequentially transmitted. As shown in FIG. 4, this call signal is composed of an 8-bit command field, an 8-bit address field, and a 3-byte 8-bit checksum field.

A start bit, a parity bit, and a stop bit are provided before and after each byte. The command field stores command data indicating what the calling signal from the receiver means for each terminal, regardless of the address. In the present invention, an information collection command, that is, a data sampling command is set and used at a constant period of one second, for example, in addition to command data for a normal call response.

FIG. 5 shows a transmission format of a response signal from the terminal.
It is composed of two bytes of a bit checksum field, and a start bit, a parity bit, and a stop bit are provided before and after each byte. Of course, the configuration of the transmission format of the paging signal from the receiver and the paging signal from the terminal used in the present invention can be made as appropriate as required.

FIG. 6 is a circuit block diagram showing one embodiment of the repeater 14 used in the on / off sensor 24 shown in FIG. In FIG. 6, a repeater 14 includes a control circuit 42.
Is provided. The control circuit 42 has a CP as a control means.
A U44, a memory 46 using a RAM or the like, and an AD converter 48 are further provided. A transmission / reception circuit 50 and an address setting circuit 54 are provided for the CPU 44 of the control circuit 42. The transmission / reception circuit 50 receives the call signal from the receiver 10 in the voltage mode and supplies it to the CPU 44.
The response signal from 44 is sent to the receiver 10 in the current mode. The transmission / reception circuit 50 is provided with a transmission indicator light 52 that is turned on when data bit 1 is transmitted / received and turned off when data bit 0 is transmitted / received.

An address setting circuit 54 is controlled by an address setting switch 56 using a dip switch or the like.
4 is set to a predetermined terminal address. In the address setting by the address setting circuit 54, a group address when a plurality of repeaters are grouped is set in addition to a unique self address. FIG.
The functions as the information collecting means 4 and the responding means 5 shown in the principle explanatory diagram will be provided. The AD converter 48 provided in the control circuit 42 has a plurality of input ports indicated by numbers 1, 2,... N. As the number of detectors corresponding to the input ports 1 to n of the AD converter 48, for example, an on / off sensor or a transmitter can be externally connected. In this embodiment, the on / off detectors 24-1, 24-2,.
······························································································································· Shows one transmitter 26 which is connected last.
24- (n-1) are input ports 1 and 2 of the AD converter 48.
.. (N-1), and the last transmitter 26 corresponds to the input port n.

On the other hand, a signal line terminal S, a sensor line terminal V, an acknowledgment line terminal AA for the transmitter 26, and a common terminal SC are provided on the transmission line side of the repeater 14 with respect to the receiver. Therefore, it is connected to the receiver 10 by four lines. Following the signal line S and the common terminal S C is provided diode D2 and the Zener diode ZD2, it is further provided a constant voltage circuit 58.

The constant voltage circuit 58 outputs a power supply voltage, for example, +3.2 V to the control circuit 42 side. A diode D1 and a zener diode Z follow the detector line terminal V.
D1 is provided, and a constant voltage circuit 60 is further provided. The constant voltage circuit 60 outputs a power supply voltage required for the externally connected on / off sensors 24-1 to 24- (n-1) and the transmitter 26, for example, 20V. Subsequent to the constant voltage circuit 60, the fire disconnection detection circuits 64-1 to 64-n and the test circuit 66 are individually provided corresponding to the on / off sensors 24-1 to 24- (n-1) and the transmitter 26, respectively. -1 to 66-
n is provided.

The boosted voltage of the booster circuit 62, for example, 35 V, is supplied to the fire disconnection detection circuits 64-1 to 64-n. The booster circuit 62 is temporarily operated when the CPU 44 performs data sampling processing, and the ON / OFF detectors 24-1 to 24-4 are detected via the fire disconnection detection circuits 64-1 to 64-n.
A boost voltage of 35 V higher than the normal power supply voltage of 20 V is applied to the 24- (n-1) and the transmitter 26 as the detection operation voltage.

The on / off sensors 24-1 to 24- (n-
1), for example, as shown in the on / off sensor 24-1, a resistor R2 is connected in parallel to a series circuit of the alarm indicator lamp 68 and the resistor R1, and a sensor contact 70 is further connected to this parallel circuit. The sensor contact 70 is constituted by a mechanical switch contact in a diaphragm type heat sensor or a switching means such as a thyristor triggered by a fire detection signal in a smoke sensor, a heat sensor or the like.

A terminal 72 is connected to the terminal of the on / off sensor 24-1. The terminator 72 has a Zener diode ZD2, a resistor R0, and a Zener diode ZD3 connected in series. The Zener diodes ZD2 and ZD3 are connected to the terminating resistor R0 in the opposite direction so that one of them functions even if the connection polarity is switched. The Zener diodes ZD2 and ZD3 are non-conductive at a normal output voltage of 20V of the constant voltage circuit 60 in which data sampling is not performed, and are Zener voltages which become conductive when receiving an output voltage of the booster circuit 62 which performs data sampling, for example, 35V. And

On the other hand, the transmitter 26 corresponding to the input port n of the AD converter 48 has a switch contact 76 which is turned on by a push button operation, and a switch contact 78 which closes in conjunction with the switch contact 76. It is connected to the detector line from the fire disconnection detection circuit 64-n. On the other hand, the signal line from the response confirmation terminal AA of the repeater 14 is drawn in and connected to the switch contact 78 via the confirmation indicator lamp 74 and the resistors R3 and R4.

The fire detecting information is transmitted from the control circuit 42 to the receiver 10 by interruption to the acknowledgment terminal AA of the repeater 14 based on the fire detecting signal of the transmitter 26.
When a receiving operation is performed on the 0 side, a confirmation signal is transmitted to the confirmation response terminal A.
A, and specifically, voltage supply is performed, and thereby the confirmation indicator lamp 74 is turned on. Further, the on / off sensor 24-1
Test circuits 66-1 to 66-n provided corresponding to .about.24- (n-1) and the transmitter 26 receive a test command by operating a test switch in the repeater 14 or a calling signal from the receiver 10. The test can then be performed by sequentially activating the sensors to short circuit between the sensor lines, creating the same simulated fire detection condition as when the sensor contacts 70 or the transmitter switch contacts 76 were activated.

FIG. 7 shows an equivalent circuit of the fire disconnection detection circuit and the sensor provided in the repeater 14 of FIG. The fire disconnection detecting circuit 64 provided in the repeater includes a constant current source 82, and a boosted voltage of 35 V by the boosting circuit 62 is applied as shown in FIG. If no fire is detected by the sensor 24, the sensor contact 70 is open, and the working voltage 35V is applied to the zener diode ZD2 of the terminator.

The Zener diode ZD2 conducts when the boosted voltage is applied, and the line voltage determined by the terminating resistor R0 is divided by the resistors R5 and R6 of the fire disconnection detection circuit 64 and the AD converter 4
8 is supplied. FIG. 8 is an explanatory diagram showing an area of the detection voltage at the time of data sampling when a boosted voltage of 35 V is applied. If there is no disconnection in the steady monitoring state, the termination resistance R is set by the conduction of the Zener diode ZD2 provided in the terminator.
The voltage generated at 0 is set in a range of, for example, 22 to 28 V,
This is AD-converted as a normal detection area.

Next, when a fire is detected in FIG. 7, the sensor contact 70 closes and a current determined by the resistor R12 on the sensor side flows. The value of the resistor R12 at this time is set to the terminating resistor R0.
By making it smaller, for example, as shown in FIG.
A range of ２０20 V can be defined as a fire detection area. For example In its One ON-OFF detector as the detection voltage V1. In addition, the transmitter has a different internal resistance and is set to a fire detection voltage V2 higher than the fire detection voltage V1 of the on / off sensor.

Further, when the sensor line is disconnected, the zener diode ZD2 of the terminator does not conduct even if a boosted voltage of 35 V is applied by data sampling and is almost at the boosted line voltage. A range of up to 35 V is set as a disconnection detection area. Of course, the fire detection area,
A dead zone is provided between the normal detection area and the disconnection detection area.

The detected voltage at the time of data sampling in the steady state, fire detection, and disconnection shown in FIG. 8 is converted into digital data by the AD converter 48 provided in the control circuit 42 in FIG. , Are stored in the memory 46. In the present invention, when the digital data obtained by the AD converter 48 at the time of data sampling is in the fire detection area of FIG. 8, the information collecting means 4 of the CPU 44 immediately transmits the fire detection information by an interrupt. Is transmitted to the receiver 10.

FIG. 9 shows the analog smoke detector 16 shown in FIG.
FIG. 2 is a block diagram showing one embodiment. In FIG.
The analog smoke detector consists of the sensor body 16a and the sensor base 1
6b. The sensor body 16a is provided with a rectifier circuit 84, a noise absorbing circuit 86, and a transmission signal detecting circuit 88 for making the connection polarity nonpolar from the base side. The transmission signal detection circuit 88 detects a paging signal from the receiver 10 in the voltage mode and supplies it to the transmission control circuit 92.

Address information and type information from the address / type setting circuit 94 are set for the transmission control circuit 92. This transmission control circuit 92 has the same function as the control circuit 42 of the repeater 14 shown in FIG. Therefore, the detection data stored in the memory is returned in response to the call signal by the normal polling, and the collection processing of the detection data is performed when the data sampling command is received.

The smoke detection is performed by an LED driving circuit 96 and an infrared LED.
98, the light receiving circuit 100 and the amplifier circuit 102.
Further, a test LED 106 for a test operation is provided. The LED drive circuit 96 is controlled by the transmission control
After receiving the data sampling command from 0,
The infrared LED is driven to emit light at the elapse of a specific time determined by the terminal address, and the smoke detection signal obtained via the light receiving circuit 100 and the amplifier circuit 102 is converted into digital detection data by AD conversion and stored in the memory. The smoke detection structure using the infrared LED 98 and the light receiving circuit 100 is usually performed by a scattered light method.

The response signal from the transmission control circuit 92 is supplied to a response signal output circuit 104, and the receiver 10 is controlled in a current mode.
To send a signal. The transmission circuit 92 and subsequent circuits operate by receiving a constant voltage supply from the constant voltage circuit 90. Further, an alarm indicator lamp circuit 108 is provided on the sensor base 16b, and turns on an alarm indicator lamp exposed to the outside when a fire is detected.

Further, the transmission control circuit 92 determines a fire from analog information obtained at the time of data sampling based on a data sampling command from the receiver 10, and
The response signal including the fire detection information is received by the receiver 10 by interruption.
Will be sent back. FIG. 10 is a flowchart showing a processing operation by the control unit 32 provided in the receiver 10 of FIG. First, when the power of the receiver 10 is turned on, predetermined initial settings are performed in step S1. Then, step S2
To perform terminal polling in the order of terminal addresses 1 to 127. During this polling, the elapse of the data sampling command issuance cycle of, for example, 1 second is monitored in step S3.
To send a data sampling command to the terminal. When the transmission of the data sampling command is completed, the process returns to step S2 to restart the polling.

FIG. 11 is a flowchart showing the processing operation of the terminal using the repeater 14 used in the on / off sensor shown in FIG. 6 as an example. First, when the power is turned on, predetermined initial settings are performed in step S1, and the presence or absence of reception of a signal from the receiver 10 is checked in step S2. When the signal from the receiver 10 is received, the process proceeds to step S3, and it is checked whether or not the received command field is a sampling command.

If it is not a sampling command, the flow advances to step S4 to check whether the calling address matches its own address. If an address match is obtained, the flow advances to step S5 to check whether the command is a control command. In normal polling, since the detection data is a response command, the process proceeds to step S7, and a response transmission for reading out the detection data stored in the memory and transmitting it to the receiver 10 is performed.
On the other hand, if the received command is a control command for a sensor test or the like, the flow advances to step S6 to execute the control for the designated sensor test or the like, and the result is transmitted as a response in step S7.

On the other hand, if it is determined in step S3 that the sampling command has been received, the flow advances to step S8 to set the waiting time Tw based on the address, and waits for the set waiting time Tw to elapse in step S9. When the waiting time Tw elapses in step S9, the detection signals are sampled in the order of the input ports 1 to n of the AD converter 48 as shown in steps S10 to S12.

That is, in the case of FIG. 6, the detection voltages of the fire disconnection detection circuits 64-1 to 64-n are sequentially read from the ports 1 to n in a state where the booster circuit 62 is operated, and digital detection data is converted by AD conversion. And stored in the memory 46. Step S when all ports have been sampled
In step S13, it is checked whether or not the detection data stored in the memory 46 includes the data in the fire detection area shown in FIG. To the receiver 10.

If it is not a fire, step S1
The process proceeds to step S5, where it is determined whether or not there is a disconnection in the disconnection detection area shown in FIG. 8, and if there is a disconnection, the process proceeds to step S16 to set a failure bit of the data format to be polled and responded. Here, a specific example of the setting of the unique waiting time Tw by the address in step S8 in FIG. 11 will be described. FIG. 12 shows a data sampling processing operation in a case where terminals having terminal addresses 1 to 127 are divided into four terminal groups for every 32 addresses and a unique waiting time is set for one sampling command. That is,
127 terminals at addresses 1-32, addresses 33-64,
It is divided into four groups G1 to G4 of addresses 65 to 96 and addresses 97 to 127.

The waiting time Tw1 of the first group G1 is 0, and the data sampling is started immediately upon receiving the sampling command. Waiting time Tw of the second group G2
2, the waiting time Tw3 of the third group G3 and the waiting time of the fourth group Tw4 are sequentially increased. Here, as shown in FIG. 6, since the AD converter 48 of one repeater sequentially samples the input ports 1 to n and performs AD conversion, the time required for sampling one group is, for example, the first group G1. , Each sampling time ΔT of port 1 to port n is multiplied by n (ΔT ×
n) Time is required. Thus, the latency of the group G 1 ~G4 Tw1~Tw may be satisfied a relation Tw1 = 0 Tw2 = ΔT × n Tw3 = 2 × (ΔT × n) Tw4 = 3 × (ΔT × n).

Therefore, when a certain sampling timing is captured, data sampling operations are simultaneously performed in parallel at the same port of 32 terminals. In this case, the time required for sampling one port is as short as about milliseconds. Therefore, even if the port is divided into a plurality of groups and sampling is performed for each of the ports 1 to n, the time required for sampling all terminals is extremely short. The detection data can be sampled within a short time within a few seconds and obtained at substantially the same time.

In the data sampling shown in FIG. 12, a case where a plurality of terminals are grouped and data sampling is performed for each port in the group is taken as an example, but as another embodiment, transmission from a receiver is performed. If the number of terminals connected to the road is not so large, data sampling may be performed on all terminals at once without grouping.

Although the repeater for the on / off sensor shown in FIG. 6 has a plurality of input ports, the analog smoke sensor 16 and the analog heat sensor 18 detect data obtained by one sampling. One, which corresponds to a case where there is only one input port. For this reason, it is not necessary to sequentially perform data sampling for each of the ports 1 to n after grouping as shown in FIG. 12, and only one time is required, so that the number of terminals included in the group is increased as compared with the case of the on / off type. be able to.

Therefore, it is desirable to set different unique waiting times depending on the terminal address between the repeater for the on / off sensor and the analog sensor for different applications, and to perform the sampling operation based on the reception of the sampling command. Further, in the embodiment of FIG. 2, the case where only the receiver 10 is provided as the receiving means 1 in the principle explanatory diagram of FIG. 1 is taken as an example, but as another embodiment of the present invention, the receiving means 1 is (1) A configuration in which a receiver and a relay board functioning as a local receiver are connected to a transmission path from the receiver, and a terminal is connected to a transmission path from the relay board. (2) Only a relay board as a local receiver is connected. Any of the configurations in which the terminals are connected to the transmission lines from each relay board by connecting through multiple transmission lines can be applied as they are.

Further, in the above embodiment, the repeater 14 for the on / off sensor takes the analog smoke sensor 16 and the analog heat sensor 18 as an example, but the control repeater 20 operates the control load 30 as well. When it is necessary to return the detection information of the detection switch or potentiometer indicating the operation state to the receiver 10 in the same manner, the detection signal is output in the same manner in response to the data sampling command from the receiver 10 when a predetermined specific time elapses. It is also possible to perform processing of sampling, storing, and sending it back to the receiver 10 by ordinary polling.

Further, it goes without saying that the present invention is not limited by the numerical values used in the above embodiments.

As described above, according to the present invention,
Upon receiving a terminal information collection command from the receiving side, terminal information is collected and retained at a point in time when a preset specific time different for each terminal has elapsed, and the terminal information retained in a subsequent normal call is retained. By sending to the receiving side, information collection of all terminals is not performed at the same time, it is performed sequentially with a time lag unique to each terminal, reducing the current consumption flowing at the time of information collection, the receiver side Information on a plurality of terminals can be collected at approximately the same time without imposing a burden on the power supply.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is an explanatory diagram showing the overall configuration of the present invention.

FIG. 3 is a time chart showing the polling of the present invention.

FIG. 4 is an explanatory diagram of a transmission format of a calling signal from a receiver.

FIG. 5 is an explanatory diagram of a transmission format of a response signal from a terminal.

FIG. 6 is a configuration diagram of an embodiment of a repeater used for an on-off sensor.

FIG. 7 is a circuit diagram showing the detection equivalent circuit of FIG. 6;

8 is an explanatory diagram showing fire, normal, and disconnection detection voltage regions in FIG. 7;

FIG. 9 is a block diagram showing an embodiment of the analog sensor of FIG. 2;

FIG. 10 is a flowchart showing the processing operation on the receiver side of FIG. 2;

FIG. 11 is a flowchart showing a processing operation on the repeater side in FIG. 2;

FIG. 12 is a time chart showing the processing operation of the present invention for the repeater of FIG. 6;

[Explanation of symbols]

 1: Receiving means 2: Terminal 3: Information collecting command means 4: Information collecting means 5: Response means 10: Receiver 12: Transmission path 14: Repeater 16: Analog smoke detector 16a: Sensor body 16b: Sensor base 18: Analog heat sensor 20: Control repeater 22: Sensor line 24-1, 24-2: ON / OFF sensor 26: Transmitter 28: Control line 30: Control load 32: Control unit 34: Display unit 36: Operation unit 38: sounding unit 40: power supply unit 42: control circuit 44: CPU 46: memory 48: AD conversion unit 50: transmission / reception circuit 52: transmission indicator 54: address setting circuit 56: address setting switch 58, 60: constant voltage Circuit 62: Step-up circuit 64-1 to 64-n: Fire disconnection detection circuit 66-1 to 66-n: Test circuit 68: Alarm display lamp 70: Sensor contact 72: Terminator 74: Accuracy Response indicators 76, 78: switch contacts 80: control voltage monitoring circuit 82: constant current source 84: rectifier circuit 86: noise absorption circuit 88: transmission signal detection circuit 90: constant voltage circuit 92: transmission control circuit 94: address / type Setting circuit 96: LED drive circuit 100: Light receiving circuit 102: Amplifier circuit 104: Response signal output circuit 106: Test LED

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-159797 (JP, A) JP-A-3-49351 (JP, A) JP-A-61-247145 (JP, A) (58) Field (Int.Cl. ⁶ , DB name) H04M 11/00 301 G08B 17/00 G08B 23/00 530 G08B 25/00 520 G08B 26/00

Claims (12)

(57) [Claims] 1. A disaster prevention monitoring device for collecting terminal information by sequentially calling a plurality of terminals connected to a receiving means by designating an address, wherein said receiving means transmits information to a plurality of terminals at a predetermined timing. Providing information collection instruction means for simultaneously instructing collection, when the terminal receives the terminal information collection instruction,
Held in the information collecting means upon receipt of the information collection means for holding the collected information after elapse of a preset specific time differs for each terminal, its own call by addressing from said receiving means A disaster prevention monitoring device comprising a response unit for transmitting information. 2. The disaster prevention monitoring device according to claim 1, wherein the information collecting instruction means of the receiving means instructs all terminals to collect information, and the information collecting means of the terminals is based on its own address . A disaster prevention monitoring device that collects and holds information after a lapse of a specific time . 3. The disaster prevention monitoring device according to claim 1, wherein the plurality of terminals are grouped in advance into a plurality of groups.
Address is set, and the information collecting means is
When receiving the terminal information collection command,
Information after the elapse of a specific time based on the
Disaster prevention monitoring device characterized by holding . 4. The disaster prevention monitoring device according to claim 1, wherein the terminal collection information includes normal information, abnormal information such as a fire, or failure information such as a disconnection. . 5. The disaster prevention monitoring device according to claim 1, wherein the information collecting means of the terminal immediately receives the abnormality detection information by interrupt processing when judging an abnormality such as a fire from the collected information. Disaster prevention monitoring device for sending to a means. 6. The disaster prevention monitoring device according to claim 1, wherein the terminal is connected to a signal line from the receiving unit and includes the information collecting unit and the responding unit; And a detector for detecting an abnormality such as a fire, which is connected to a line from which the information collection means of the repeater receives the terminal information collection command, and after a preset specific time, the detector 1. A disaster prevention monitoring device, comprising: an AD conversion unit that samples a detection signal from the A / D converter and performs AD conversion; and a storage unit that stores conversion data from the A / D conversion unit. 7. The disaster prevention monitoring device according to claim 6, wherein the AD converter of the repeater has a plurality of input ports for individually connecting detectors, and each of the AD converters receives an information collection command when receiving the information collection command. A disaster prevention monitoring device characterized in that a detection signal of an input port is sequentially AD-converted and stored in the storage means. 8. The disaster prevention monitoring device according to claim 7, wherein one or more on / off fire detectors and / or fire transmitters are connected to the input port of the AD conversion means via a detection line. Disaster prevention monitoring device. 9. The disaster prevention monitoring device according to claim 1, wherein said terminal is an analog sensor connected to said receiving means and provided with said information collecting means and responding means. Disaster prevention monitoring device. 10. The disaster prevention monitoring device according to claim 1, wherein said receiving means comprises only a receiver, and said terminal is connected to said receiver. 11. The disaster prevention monitoring device according to claim 1, wherein said receiving means includes a receiver and one or more relay boards as a local receiver connected to a transmission line from the receiver. Wherein the terminal is connected to each of the relay boards. 12. The disaster prevention monitoring device according to claim 1, wherein said receiving means comprises only a plurality of transponders as local receivers connected to each other by a transmission line. A disaster prevention monitoring device, wherein the terminal is connected to the terminal.