JPH04340196A - Terminal address checking system for disaster prevention monitoring device - Google Patents

Abstract

PURPOSE:To make it possible to easily specify a terminal generating a setting miss and to check an address setting state even at the time of generating an address setting miss like the error setting of the same address in two terminals. CONSTITUTION:A receiver 1 is provided with a current monitoring part 14 for monitoring the current level of terminal information returned from a terminal specifying an address and a terminal display control part 8 for judging the existence of responses from two or more terminals when the monitoring part 14 detects a current exceeding a prescribed level, specifying the same address again and sending a display control instruction to the terminals and each of plural terminals is provided with a check display part 17 for turning on a display lamp and holding the ON state at the time of receiving the display control instruction from the receiver 1. When the monitoring part 14 detects a current exceeding the prescribed level, the specified address is displayed on a display part 13 in the receiver 1.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention connects a plurality of terminals equipped with fire, gas leak, etc. sensors to a transmission path from a receiver, calls the terminals by specifying an address, and returns terminal information or controls the terminals. This invention relates to an address confirmation method for disaster prevention monitoring equipment that performs

0002

[Prior Art] Conventionally, disaster prevention monitoring devices that centrally monitor abnormalities such as fires and gas leaks connect multiple terminals equipped with sensors and control equipment to a transmission line led out from a receiver.
A unique address is set in advance for each terminal, and the receiver specifies the address to send back terminal information and control the terminal.

[0003] Address setting in a terminal is usually performed by operating a dip switch provided on the terminal to set a predetermined address code at the time of factory shipment or on-site installation.

0004

[Problem to be solved by the invention] However, in such conventional terminal address settings, if an address setting error is discovered, for example, if the same address is set twice by mistake, In this method, it is necessary to confirm whether or not there is a setting error by checking the setting status of the DIP switch for each terminal, which has the problem of making the confirmation work extremely complicated.

[0005] In particular, the number of terminals connected to one receiver is more than 100, and they are distributed in different locations in the building, signal lines are connected to the terminals, and the terminals are connected to the terminals. Since the terminal is connected to the terminal, it may be necessary to remove the terminal entirely from the terminal in order to check the internal DIP switch, making the task of confirming the address of the terminal extremely complicated.

[0006] The present invention has been made in view of such conventional problems, and it is easy to prevent terminals that have made an address setting error, for example, when the same address is mistakenly set on two terminals. An object of the present invention is to provide an address confirmation method for a disaster prevention monitoring device that can identify the address and confirm the address setting state.

[0007]

[Means for Solving the Problems] In order to achieve this object, the present invention is constructed as follows. In addition, the reference numerals in the drawings of the embodiments are also shown. Further, terminals 3-1 to 3-6 are referred to as terminal 3. First, in the present invention, a plurality of terminals 3 are connected to a transmission line 2 led out from a receiver 1, and each terminal 3 temporarily lights up an indicator light 24 when its own address is called. is displayed and the terminal information is sent back in current mode, and the receiver 1 specifies addresses to the plurality of terminals 3 and sends a terminal information return command or a terminal control command, and also sends the return information from the terminals 3. This applies to disaster prevention monitoring equipment configured to receive, display, and control information.

In the present invention, as an address confirmation method for such a disaster prevention monitoring device, the receiver 1 is provided with a current monitoring unit 14 that monitors the current level of terminal information sent back from the terminal 3 that has specified the address. When the current monitoring unit 14 detects a current exceeding a predetermined level, it determines that there has been a response from two or more terminals 3 and sends a display control command to the terminals by specifying the same address again. Correspondingly, each of the terminals 3 is provided with a confirmation display section 17 that keeps the indicator light 24 lit to confirm when a display control command from the receiver 1 is received. It is characterized by

Furthermore, the designated address may be displayed on the display section 13 of the receiver 1 when the current monitoring section 14 detects a current exceeding a predetermined level.

0010

[Operation] According to the address confirmation method of the disaster prevention monitoring device according to the present invention having such a configuration, if the same address is erroneously set to two or more terminals, the terminal call for address confirmation is not performed. When done from the receiver, terminals with the same address simultaneously respond with terminal information in current mode,
As a result, the response current received by the receiver increases to a composite value of response currents from multiple terminals.

[0011] Therefore, when the current at the time of terminal response is monitored and a current exceeding a specified level is detected, it is known that the same address is set to two or more terminals. Therefore, by specifying the same address again and sending a display control command to keep the indicator light lit, the indicator light provided on the terminal with the same address is kept lit. At this time, the address causing the setting error may be displayed on the receiver.

[0012] In this way, the indicator light of the terminal where the address setting error has occurred is kept lit by the command from the receiver, so it is easy to find multiple terminals with the same address by looking around the installation location of the terminal. If you look at the address setting list from the list, you can immediately find out which terminal has made an address setting error, and then correct the address to the correct value only for the terminal that has made an address setting error. All you have to do is to do this, and it is extremely easy to confirm the address and change the settings to the correct address.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory diagram showing the overall configuration of a disaster prevention monitoring device according to the present invention. In FIG. 1, 1 is a receiver;
A transmission line 2 is led out from the receiver 1 toward a monitoring area. A plurality of terminals 3-1, 3-2, . . . are connected to the transmission path 2.
・3-6 is connected. Terminals 3-1, 3-2, 3-
Reference numerals 4 and 3-5 include sensors for detecting abnormalities such as fire or gas leaks, which have a function of transmitting data to and from the receiver 1.

In addition, the terminals 3-3 and 3-6 have a function as a repeater, and the power supply signal line 4 is further drawn out from the terminals 3-3 and 3-6, and the power supply signal line 4 is connected to the on/off signal line 4. type fire detector 5 is connected. Furthermore, terminals equipped with control devices such as fire doors and smoke vents are also connected to the transmission line 2.

FIG. 2 is a block diagram showing an embodiment of the present invention, in which the receiver 1 is connected to the terminals 3-1 and 3 shown in FIG.
The connection state of terminal 3-2 is taken out, and the internal configuration of terminal 3-1 is shown in detail. In FIG. 2, receiver 1
and a plurality of terminals 3-1, 3-2, . . . are connected by two transmission lines 2.

In this embodiment, receivers 1 to 3-1
, 3-2 are sent in voltage mode, while the signals from terminals 3-1, 3-2 to receiver 1 are sent in current mode. The receiver 1 is provided with a transmission CPU 6,
The transmission CPU 6 includes a transmission control section 7 and a terminal display control section 8 realized by program control. The transmission control unit 7 specifies the address of the terminal and sends appropriate commands such as a terminal response information return command and a terminal control command to the terminal side via the serial data transmission circuit 9. The transmission format for the terminal by the transmission control unit 7 is composed of an address, a command, a check code (for example, a checksum), etc., as shown in FIG. 3(a).

The response data from the terminal is received by the serial data receiving circuit 11 via the data/current switching circuit 10, and then read into the transmission control section 7 of the transmission CPU 6. The format of the response information from this terminal consists of an address, data, and check code, as shown in FIG. 3(b). The transmission control unit 7 that has read the response information from the terminal decodes the address and data included in the response information, and provides the decoding result to the display CPU 12. For example, if there is abnormal data such as fire or gas leak, it will display it on the display unit 13. Along with the terminal address, an abnormal occurrence of fire or gas leak is displayed. Furthermore, the display CPU 12 rings an alarm bell or the like (not shown).

The receiver 1 is further provided with a return current level check circuit 14 as a current monitoring section, and a terminal display control section 8 is provided within the transmission CPU 6 in correspondence with the return current level check circuit 14. The switching output of the data/current switching circuit 10 is provided to the return current level check circuit 14. The data/current switching circuit 10 is switched from the serial data receiving circuit 11 side to the return current level checking circuit 14 side by a switching signal outputted at a predetermined timing after the transmission control section 7 finishes receiving the terminal response information.

The return current level check circuit 14 provides a detection output to the terminal display control section 8 of the transmission CPU 6 when the return current from the terminal side exceeds a predetermined current level. When the terminal display control section 8 receives a detection output of a received current exceeding a predetermined current level from the return current level check circuit 14, it simultaneously responds from two or more terminals to the command issued by the transmission control section 7 to return terminal information to the terminals. It is determined that there has been an alarm, and sends a display control command to the terminal side via the transmission control unit 7 to keep the indicator light provided on the terminal side, that is, the alarm indicator light lit.

Next, the terminal 3-1 will be explained. The terminal 3-1 is provided with a transmission CPU 15, and the transmission CPU 15 is provided with a transmission control section 16 and a confirmation display section 17 that are realized by program control. The transmission control unit 16 transmits the data received from the receiver 1 via the serial data receiving circuit 18 (FIG. 3).
The address of the received information shown in a) is compared with its own address, and if the addresses match, the received information is read and the command following the address is decoded.

If the result of decoding the command is a command to return terminal information, then the sensor section 20 is sent via the terminal circuit 19.
The terminal information shown in FIG. 3B is created using the detected terminal information as data, and is sent back to the receiver 1 in current mode via the data/current switching circuit 21 and the transmitting circuit 22. Of course, if the content of the decoded command is a control instruction,
The terminal circuit 19 side is controlled in accordance with this control command.

The data/current switching circuit 21 is connected to the transmission CPU 1.
The transmission control unit 16 of 5 receives a switching signal at a predetermined timing after the transmission of the terminal information to the receiver 1 is completed, switches to current output, and sends a predetermined terminal current to the receiver 1 side via the transmission circuit 22. Send. Data/current switching circuit 1 provided on the receiver 1 side in synchronization with this current output switching
0 is also switched to the current output, causing the return current level check circuit 14 to perform a return current check operation.

An alarm indicator light 2 using an LED is connected to the terminal circuit 19 provided in the terminal 3-1 via a protective resistor R1.
4 is connected. For example, if the alarm indicator light 24 is a fire sensor, it lights up when a fire alarm occurs, and the transmission control unit 16
It lights up for a certain period of time when it detects a call from receiver 1 that has specified its own address, and when the terminal 3-1
It is possible to know by looking at the alarm indicator light 24 that there has been a call.

Further, according to the present invention, the alarm indicator light 24 is controlled by the confirmation display section 17. When the confirmation display unit 17 receives a terminal control command sent from the terminal display control unit 8 provided in the transmission CPU 6 of the receiver 1 via the transmission control unit 16, it lights up the alarm indicator light 24 via the terminal circuit 19. It will be retained. The confirmation display unit 17 keeps the alarm indicator light 24 lit based on the result of determining that terminal information has been returned from two or more terminals having the same address on the receiver 1 side. Confirmation display section 17
The alarm indicator light 24, which is kept lit, displays the terminal in which the same address has been set incorrectly two or more times.

FIG. 4 is an explanatory diagram showing an example of the device configuration on the terminal side in FIG. It is composed of a main body part 27 which is detachable from the main body part 26,
A transmission circuit section 28 including the transmission CPU 15, serial data receiving circuit 18, data/current switching circuit 21, and terminal circuit 19 shown in FIG. For this reason, alarm indicator light 2
4 is provided on the base portion 26 side.

FIG. 5 shows another embodiment of the terminal.
In this embodiment, the transmission circuit section 28 and the sensor section 20
Furthermore, it is characterized in that the alarm indicator light 24 is entirely incorporated into the main body part 27. Next, the control processing on the side of the receiver 1 in FIG. 2 will be explained with reference to the flowchart in FIG. 6.

In FIG. 6, first step S1 (hereinafter "
(step '' is omitted), a counter n indicating the terminal address is incremented by one. Note that the counter n is set to 0 in the initial state. Therefore, address 1 is initially set with n=1. Next, in S2, Figure 3(a)
Send a command in the format shown in as a calling command.

When the response information from the terminal at the specified address is received in S3 in response to the transmission to the terminal in S2, the return current level check circuit 14 monitors in S4 whether or not a detection output indicating a predetermined current or more is obtained. do. The timing of this current check is A immediately after receiving the terminal information in Figure 3(b).
It will be done at the timing of. If the terminal receiving current is smaller than the predetermined current in S4, the process advances to S6 to process the received data, and returns to S1 again to repeat the same call and response received data processing with the next address set.

On the other hand, if the terminal response current is equal to or higher than the predetermined current in S4, it is determined that the terminal information has been returned from two or more terminals having the same address, and the process proceeds to S5, where the terminal lights up. Send control commands. Next, Figure 7
The control processing of the terminal 3-1 in FIG. 2 will be explained with reference to the flowchart.

In FIG. 7, the presence or absence of a self-address is checked from the received data in S1, and when the self-address is obtained, the process proceeds to S2, where a command subsequent to the address is received. Since the command in a normal call is a command to return terminal information, the process proceeds from S3 to S5, and the terminal information is transmitted to the receiver 1 side. On the other hand, as shown in FIG. 6, when a lighting control command is sent based on responses from two or more terminals with the same address on the receiver side, it is determined in S3 that it is a lighting control command. teS4
Then, the alarm indicator light 24 is kept lit.

At this time, on the receiver 1 side, S in FIG.
Display CPU at the same time as sending the lighting control command in step 5.
A display command is given to the display unit 12 to display on the display unit 13 that an address setting error has occurred in which two or more terminals have set the same address, and at the same time, the address causing the address setting error is displayed. Therefore, when you learn of an address setting error from the display on the display unit 13 and look around the installation location of the terminal to confirm the terminal that has caused the setting error, the alarm indicator light 24 of the terminal that has caused the address setting error remains lit. This makes it easy to discover multiple devices that have incorrectly configured the same address.

[0032] Normally, the installation location of the terminal and the set address are prepared as a list, so if you find that there are multiple terminals with the same address, you can check this list to avoid incorrect address settings. You can immediately find out which terminal has the wrong settings, open the lid of the terminal with the incorrect settings, and use the internal dip switch to set the correct address.

In the receiver shown in FIG. 6, the terminal calling process is stopped by sending the lighting control command in S5, and the receiver shown in FIG.
Even in the case of a terminal, the terminal information response processing will be canceled when the S4 indicator light is turned on, but the normal state can be restored by operating the recovery switch on the receiver 1 side, for example. In addition, since the address setting error confirmation process shown in the above embodiment is used in specific cases such as when installing or expanding disaster prevention monitoring equipment, the receiver 1 side has two modes: address confirmation mode and normal monitoring mode. A mode switching function may be provided to perform address setting error confirmation processing by switching to address confirmation mode. This address confirmation process can be effectively used, for example, during periodic inspections.

[0034]

[Effects of the Invention] As explained above, according to the present invention, even if an address setting error occurs in which the same address is set on two or more terminals, the address setting error can be prevented by control from the receiver side. The indicator light on the terminal remains lit, and by finding the terminal whose indicator light is lit, you can easily discover multiple terminals that have the same address set, and identify the terminal that caused the address setting error from among these. This makes it possible to identify and change the address setting of only the terminal in which the address setting error has occurred, and it is possible to extremely easily perform the work of confirming the addresses of a large number of terminal devices.

[Brief explanation of the drawing]

[Fig. 1] An explanatory diagram showing the overall configuration of the disaster prevention device of the present invention.

[
FIG. 2: Explanatory diagram showing one embodiment of the present invention

FIG. 3 is an explanatory diagram of the format of transmission information of the receiver and terminal of the present invention.

[Fig. 4] An explanatory diagram of an embodiment of the fire detector used in the present invention

[Fig. 5] An explanatory diagram of another embodiment of the fire detector used in the present invention

FIG. 6 is a flowchart showing control processing of the receiver in FIG. 2;

[Figure 7] Flowchart showing control processing of the terminal in Figure 2

[Explanation of symbols]

1: Receiver 2: Transmission line 3, 3-1 to 3-6: Terminal 4: Power supply/signal line 5: Fire detector (on-off type) 6, 15: Transmission CPU 7, 16: Transmission control unit 8: Terminal Display control section 9: Serial data transmission circuit 10, 21: Data/current switching circuit 11, 18: Serial data reception circuit 12: Display CPU 13: Display section 14: Return current level check circuit (current monitoring section) 17
: Confirmation display section 19: Terminal circuit 20: Sensor section 22: Transmission circuit 24: Alarm indicator light (indicator light) 26: Base section 27: Main body section 28: Transmission circuit section

Claims (2)

[Claims] Claim 1: A plurality of terminals are connected to a transmission path led out from a receiver, and each of the terminals temporarily lights up an indicator light to indicate the call when its own address is called. The terminal information is returned in current mode, and the receiver
In the disaster prevention monitoring device configured to send a command to return terminal information or a command to control the terminal by specifying addresses to the plurality of terminals, and to receive return information from the terminals and perform display and control, the The receiver includes a current monitoring unit that monitors the current level of terminal information returned from the terminal that specified the address, and a current monitoring unit that monitors the current level of terminal information sent back from the terminal that specified the address, and when the current monitoring unit detects a current exceeding a predetermined level, it a terminal display control unit that determines that there is a response and sends a display control command to the terminal by specifying the same address again; A terminal address confirmation method for a disaster prevention monitoring device, characterized in that the terminal address confirmation method for a disaster prevention monitoring device is provided with a confirmation display unit that causes confirmation by keeping the indicator light lit. 2. In the terminal address confirmation method of the disaster prevention monitoring device according to claim 1, the specified address is displayed on the display section of the receiver when the current monitoring section detects a current exceeding a predetermined level. Features a terminal address confirmation method for disaster prevention monitoring equipment.