JP3335496B2 - Terminal equipment in fire alarm equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal device in a fire alarm system, and more particularly to an apparatus for reading setting data from a rotary switch for setting an address and the like of the terminal device.

[0002]

2. Description of the Related Art In a conventional fire alarm system, a different address is previously assigned to each of a plurality of terminal devices, and when communication is performed between a fire receiver and each terminal device, the assigned address is used. The terminal device is specified.

FIG. 6 is a block diagram showing a conventional photoelectric fire detector 3 which is an example of a terminal device in a fire alarm system.

In installing the photoelectric fire detector 3,
A necessary address is set in a rotary switch 30 provided in the photoelectric fire detector 3, and when the power is turned on, a microcomputer (microcomputer) 12 reads the address set in the rotary switch 30,
The read address is written in the address RAM 22, and thereafter, the address written in the RAM 22 is read out each time to communicate with the fire receiver.

FIG. 7A shows output terminals t11 to t34 of a conventional rotary switch 30 and a microcomputer 12
FIG. 3 is a diagram showing a relationship between input ports P1 to P12.

The triple rotary switch 30 is composed of three rotary switches 301, 302, and 303. The rotary switch 301 displays a decimal scale of 0 to 9 on its operation unit, and switches the scales of the scale from 0 to 9 on the operation unit. , The binary data corresponding to the set decimal number is output to the output terminals t11, t12,
It is output from t13 and t14.

Further, output terminals t11, t12, t13,
t14 is the port P1, P2, P3, P4 of the microcomputer 12
And the rotary switch 301 is connected to the
When set to base 0, output terminals t14, t1
3, t12 and t11 output “0, 0, 0, 0” and 1
In the case of setting to the decimal number “1”, the output terminals t14, t1
3, t12 and t11 output “0, 0, 0, 1” and 1
When the value is set to the binary number “2”, the output terminal t14,
When t13, t12, and t11 output “0, 0, 1, 0”,..., when the decimal number “9” is set, the output terminals t14, t13, t12, and t11 output “1, 0, 0”. ,
1 "is output. That is, the data output to the output terminal t11 is the data of the least significant bit,
Is the data of one bit higher than the least significant bit, the data output at t13 is the data of two higher bits of the least significant bit, and the data output at t14 is the most significant bit. Bit data.

The rotary switches 302 and 303 have the same configuration as the rotary switch 301 and perform the same operation as described above.

[0009]

FIG. 7 (2) shows a conventional rotary switch in place of the triple rotary switch 30 in the conventional example.
FIG. 4 is an explanatory diagram in the case of using a triple rotary switch 31 having an output terminal arrangement different from the arrangement of the output terminals of the triple rotary switch 30.

[0010] The rotary switch 311 of the triple rotary switch 31 corresponds to the position of the output terminal t12 and the output terminal t1 of the rotary switch 301 shown in FIG.
Although the position of No. 3 is interchanged, there is a rotary switch having a different arrangement of output terminals due to a difference of a maker or the like. In order to use the conductive pattern, the conductive pattern on the printed circuit board connecting the input port of the microcomputer 12 and the output terminal of the rotary switch 31 is changed according to the exchange of the output terminal.
It must be changed as shown in (2).

As described above, when a rotary switch having a different arrangement of output terminals is used in place of the rotary switch which has been used, a conductive switch for connecting the input port of the microcomputer and the output terminal of the rotary switch is used. There is a need to change the pattern, which causes a problem that the operation of changing the conductive pattern on the substrate is complicated.

According to the present invention, the rotary switch is changed in its specification, so that a rotary switch having an output terminal arrangement different from the arrangement of the output terminals of the rotary switch used until then is used. But
It is an object of the present invention to provide a terminal device in a fire alarm system that does not require changing a conductive pattern for connecting an input port of a microcomputer and an output terminal of a rotary switch.

[0013]

According to the first aspect of the present invention,
4-bit data array of the rotary switch is 4 bits
A table for converting to an array of other data,
Means for reading 4-bit data from the reswitch,
The array of 4-bit data read by
Is converted to an array of the above 4 bits of other data based on
Terminal in fire alarm equipment having data conversion means
Equipment.

According to a second aspect of the present invention, there is provided a rotary switch.
The 4-bit data array of
Multiple tables to convert to columns and these multiple tables
Table selection means for selecting a predetermined table from
To read 4-bit data from the rotary switch
And the array of the read 4-bit data
Based on the selected table, another data of the above 4 bits is used.
Fire alarm having data conversion means for converting data into an array of data
It is a terminal device in the knowledge facility.

[0015]

According to the first aspect of the present invention, a rotary switch is provided.
Bit data array is replaced with 4-bit other data array
Conversion table and 4 bits from the rotary switch
Means for reading the data of the
The data array of the four
Data conversion means for converting the data into an array of other data.
When using a rotary switch that has an output terminal arrangement different from the arrangement of the output terminals of the rotary switch used up to that point, it can be handled simply by changing the contents of the table, and the input port of the microcomputer and the rotary switch There is no need to change the conductive pattern on the printed circuit board that connects to the output terminal.

According to a second aspect of the present invention, there is provided a rotary switch.
The 4-bit data array of
Multiple tables to convert to columns and these multiple tables
Table selection means for selecting a predetermined table from
To read 4-bit data from the rotary switch
And the array of the read 4-bit data
Based on the selected table, another data of the above 4 bits is used.
Data conversion means for converting to an array of data
When using a rotary switch that has an output terminal arrangement different from the arrangement of the output terminals of the rotary switch used up to that point, it can be handled by simply selecting an appropriate one from a plurality of tables, and the input of the microcomputer There is no need to change the conductive pattern that connects the port and the output terminal of the rotary switch.

[0017]

FIG. 1 is a block diagram of a photoelectric fire detector 1 according to an embodiment of the present invention.

In this embodiment, a microcomputer (microcomputer) 10 controls the entire photoelectric fire detector 1, and a ROM 20 stores the photoelectric fire detector 1.
Is stored and a program for converting data using a conversion table T1 described later is stored in the conversion table ROM 21.
1 is an area for storing the three rotary switches 31
Is a rotary switch that has three rotary switches 311, 312, and 313 and sets the self-address of the photoelectric fire detector 1. The conversion table ROM 2
Electrically rewritable nonvolatile EEP instead of 1
A ROM or the like may be used.

The RAM 22 is a memory for storing addresses read from the rotary switch 31. Note that R
The above-described EEPROM or the like may be used instead of the AM 22.

The light emitting circuit 40 supplies a current pulse for light emission to the light emitting element 41 when receiving a light emission control pulse from the microcomputer 10, and the amplifier circuit 43 adjusts the output level of the light receiving element 42 to a predetermined level. It amplifies at a rate. The transmission / reception circuit 50 transmits a signal such as a physical signal of smoke concentration, a fire signal, an abnormal signal, or the like from the microcomputer 10 to a fire receiver (not shown), and receives a signal such as a call signal by polling from the receiver to the microcomputer 10. And a receiving circuit for sending.

The conversion table T1 is an example of a table for converting 4-bit data to other 4-bit data. The microcomputer 10 and the ROM 20 are examples of means for reading 4-bit data from a rotary switch. This is also an example of data conversion means for converting the read 4-bit data into 4-bit other data based on a table.

FIG. 2A shows a triple rotary switch 30.
Rotary switch 31 with different output terminal arrangement
Output terminals t11-t14, t21-t24, t31-t3 of the rotary switches 311 312 313
FIG. 4 is a diagram illustrating a relationship between the input ports P <b> 4 and input ports P <b> 1 to P <b> 12 of the microcomputer 10.

The rotary switch 311 displays a scale of decimal numbers 0 to 9 on its operation section. When the switching knob is set in accordance with any of the scales 0 to 9, 2 corresponding to the set decimal number is displayed. Hexadecimal data is output from output terminals t11, t12, t13, and t14. The arrangement of the output terminals of the rotary switch 311 is different from that of the rotary switch 301 shown in FIG. 7A. That is, in the rotary switch 301, the position of the output terminal t12 and the position of the output terminal t13 are switched. The other is the rotary switch 311.

However, in FIG. 2A, the positions of the output terminals t13 and t12 of the rotary switch 311 are shown in FIG.
Although different from the rotary switch 301 of (1), the conductive pattern for connecting the input port and the output terminal is the same as that of FIG. 7A and is not changed.

That is, in the rotary switch 311, the data output to the output terminal t 11 is the data of the least significant bit, and the data output to the output terminal t 12 is the data of the next higher bit of the least significant bit. ,
The data output at t13 is the data of the two most significant bits of the least significant bit, and the data output at t14 is the data of the most significant bit. In FIG.
The output terminals t11, t13, t12, and t14 are arranged in this order, and as compared with the arrangement of the output terminals of the rotary switch 301, the output terminals t12 and t13 are arranged in reverse.

The output terminals t11, t13, t1
2, t14 are ports P1 of the microcomputer 10,
It is connected to P2, P3, and P4 by a conductive pattern. When the rotary switch 311 is set to decimal "0", the output terminals t14, t12, t
13, when t11 outputs "0, 0, 0, 0" and is set to decimal "1", output terminals t14, t12, t
13, when t11 outputs "0, 0, 0, 1" and is set to a decimal number "2", the output terminals t14, t1
2, t13 and t11 output “0, 1, 0, 0” (instead of outputting “0, 0, 1, 0”),.
When set to decimal "9", the output terminal t1
4, t12, t13, and t11 output "1, 0, 0, 1".

Output terminals of the rotary switches 312 and 313 are also arranged in the same manner as the rotary switch 311.
The same operation as described above is performed.

Next, the operation of the above embodiment will be described.

FIG. 2B is a diagram showing the conversion table T1 stored in the conversion table ROM 21 in the above embodiment.

In FIG. 2B, the decimal number is a decimal number displayed near the knobs (operation units) of the rotary switches 311, 312, and 313. When the knob is set to one of the decimal numbers , The data corresponding to the set decimal number are output terminals t14, t1.
2, t13, t11, and output terminals t14,
The data output at t12, t13, and t11 is the input data of the conversion table T1.

That is, in the input data of the conversion table T1, the data of the least significant bit is output to the output terminal t11.
Output to port (data input to port P1)
The data one bit higher than the least significant bit is data output to the output terminal t12 (data input to the port P3), and the data two bits higher than the least significant bit is output to the output terminal t13. Data (data input to the port P2), and the data of the most significant bit is data output to the output terminal t14 (data input to the port P4).

In the output data of the conversion table T1, the least significant bit data D1 is the same as the data of the input port P1, and the data D2 immediately above the least significant bit is the same as the data of the input port P3. Data D3, which is two bits above the least significant bit, is the same as the data at the input port P2, and data D4 at the most significant bit is the same as the data at the input port P4.

As described above, even if the rotary switch 311 whose output terminal arrangement is different from that of the rotary switch 301 is used, when the data is converted by the conversion table T1, the rotary switch 301 is viewed from the microcomputer 10 by the ports P1 to P4. (The same processing as that performed when the rotary switches connected to the ports P1 to P4 are not changed) can be performed.

Even if a rotary switch 312 having an output terminal arrangement different from that of the rotary switch 302 is used, when data is converted by the conversion table T1, the microcomputer 10 connects the rotary switch 302 to the ports P5 to P8. Can perform the same processing as when
Further, even if a rotary switch 313 having an output terminal arrangement different from that of the rotary switch 303 is used, when the data is converted using the conversion table T1, the microcomputer 10 determines whether the rotary switch 303 is connected to the ports P9 to P12. The same process can be performed.

Therefore, even when the arrangement of the output terminals is changed to use a different rotary switch due to the difference of the maker or the like, the conductive pattern for connecting the input port of the microcomputer 10 and the output terminal of the rotary switch 31 is changed. Instead, the same microcomputer 10 can be used.

FIG. 3 is an explanatory view of another embodiment of the present invention. FIG. 3A shows a triple rotary switch having a different arrangement of output terminals from the triple rotary switches 30 and 31 in the above embodiment. A rotary switch 321 in the switch 32,
322, 323 output terminals t11 to t14, t21 to t
24, t31 to t34, and the input port P of the microcomputer 10
It is a figure which shows the relationship with 1-P12.

The rotary switch 321 is the same as the rotary switch 301 except for the arrangement of the output terminals. However, the arrangement of the output terminals is all reversed, and the output terminals t11, t12, and t13 of the rotary switch 301 are changed. ,
Output terminals t14, t13, t12, and t11 of the rotary switch 321 exist at the position of t14, respectively.

Also in the case shown in FIG. 3A, the position of each output terminal of the rotary switch 321 is
Even if the position of each output terminal is different, the conductive pattern is not changed.

That is, the output terminals t14, t13, t1
2, t11 are connected to the input ports P1, P2, P3, P4 of the microcomputer 12 by conductive patterns, respectively. When the rotary switch 321 is set to a decimal number “0”, the output terminals t14, t13,
When t12 and t11 output “0, 0, 0, 0” and are set to decimal “1”, output terminals t14, t13,
When t12 and t11 output "0, 0, 0, 1" and are set to decimal "2", output terminals t14 and t1
3, t12 and t11 output "0, 0, 1, 0", and ...
... When the decimal number is set to "9", the output terminal t
14, t13, t12, and t11 output "1, 0, 0, 1".

Output terminals of the rotary switches 322 and 323 are also arranged in the same manner as the rotary switch 321.
The same operation is performed.

FIG. 3 (2) is a diagram showing the conversion table T2 stored in the conversion table ROM 21 in the embodiment shown in FIG. 3 (1).

Since the arrangement of the output terminals of the rotary switch 321 is opposite to that of the rotary switch 301, the input data in the conversion table T2 is
Is the data in which the arrangement of the output data is reversed. In the output data of the conversion table T2, the data D1 of the least significant bit is the same as the data of the input port P4, and the data D2 immediately above the least significant bit is the same as the data of the input port P3. , The data D3 immediately above the least significant bit is the same as the data of the input port P2, and the data D4 of the most significant bit is the same as the data of the input port P1.

As described above, the rotary switches 301, 3
Rotary switch 32 having a different arrangement of output terminals from 11
Even if 1 is used, when the data is converted using the conversion table T2, the microcomputer 10 can execute the same processing as when the rotary switch 301 is connected to the ports P1 to P4.

Even if a rotary switch 322 having an output terminal arrangement different from that of the rotary switch 302 is used, when the data is converted by the conversion table T2, the microcomputer 10 connects the rotary switch 302 to the ports P5 to P8. Can perform the same processing as when
Further, even when the rotary switch 323 having an output terminal arrangement different from that of the rotary switch 303 is used, when the data is converted using the conversion table T2, the microcomputer 10 determines whether the rotary switch 303 is connected to the ports P9 to P12. The same processing can be performed.

Therefore, even if the arrangement of the output terminals is changed to use a different rotary switch due to the difference of the maker or the like, the conductive pattern for connecting the input port of the microcomputer 10 and the output terminal of the rotary switch 32 is changed. Instead, the same microcomputer 10 can be used. Furthermore, using an EEPROM instead of the ROM 22 is convenient because if the type is different when converting an existing rotary switch, the contents can be dealt with by changing the contents of the EEPROM to a microcomputer via transmission or the like.

FIG. 4 is a block diagram showing a photoelectric fire detector 2 according to another embodiment of the present invention.

The photoelectric fire detector 2 is basically the same as the photoelectric fire detector 1, except that a microcomputer (microcomputer) 11 is used instead of the microcomputer 10 and that the conversion table ROM 21 is used instead of the conversion table ROM 21. Conversion table ROM
23, and a table changeover switch S is added.

The conversion table ROM 23 is an area storing the conversion table T10 shown in FIG. The conversion table T10 includes conversion tables T0, T1, T2, and T3.
Are stored, and one of the conversion tables is selected by the selection instruction signal by the table changeover switch S. The conversion table T0 is a table in which the input data and the output data are the same, that is, a table that outputs the input data as it is without converting it. (In this case, data conversion may be performed without selecting the table T0.)

That is, the conversion table T10 is an example of a plurality of tables for converting 4-bit data into 4-bit other data. The table changeover switch S is a table for selecting a predetermined table from the plurality of tables. It is an example of a selection means. The microcomputer 11 and the ROM 20 are examples of means for reading 4-bit data from a rotary switch, and convert the read 4-bit data into other 4-bit data based on a selected table. It is an example of data conversion means.

According to the embodiment shown in FIGS. 4 and 5, when a rotary switch having an output terminal arrangement different from the arrangement of the output terminals of the rotary switch used so far is used, the input port of the microcomputer and the rotary port are connected. There is no need to change the conductive pattern for connecting to the output terminals of the switch, and it is possible to cope with many types of rotary switches having different output terminal arrangements.

In each of the above embodiments, two, four or more rotary switches may be used instead of the triple rotary switches 31 and 32. Further, in each of the above embodiments, other terminal equipment such as a fire detector, controlled equipment such as smoke prevention equipment, and a repeater may be used instead of the photoelectric fire detector.

[0052]

According to the present invention, in a terminal device of a fire alarm system, even when a rotary switch having an output terminal arrangement different from the arrangement of the output terminals of the rotary switch used so far is used, the microcomputer can be used. There is no need to change the conductive pattern for connecting the input port of the rotary switch and the output terminal of the rotary switch.

[Brief description of the drawings]

FIG. 1 is a block diagram of a photoelectric fire detector 1 according to one embodiment of the present invention.

FIG. 2 shows a three-stage rotary switch 3 according to the embodiment.
Triple rotary switch 3 whose output terminal arrangement is different from 0
FIG. 4 is an explanatory diagram in the case where 1 is used.

FIG. 3 shows a triple rotary switch 3 in the above embodiment.
Triple rotary switch 3 whose output terminal arrangement is different from 0
FIG. 4 is an explanatory diagram in the case where No. 2 is used.

FIG. 4 is a photoelectric fire detector 2 according to another embodiment of the present invention.
FIG.

FIG. 5 is a diagram showing a conversion table T10 used in the embodiment shown in FIG.

FIG. 6 is a block diagram showing a conventional photoelectric fire detector 3 which is an example of a terminal device in the fire alarm facility.

FIG. 7 is a diagram showing a relationship between output terminals t11 to t34 of rotary switches 30 and 31 and input ports P1 to P12 of a microcomputer 12 in a conventional example.

[Description of Signs] 1, 2 ... Photoelectric fire detector, 10, 11 ... Microcomputer, 20 ... ROM, 21, 23 ... Conversion table ROM, 30, 31 ... Triple rotary switch, t11-t34 ... Rotary switch Output terminals, P1 to P12: input ports of the microcomputer, T0, T1, T2, T3, T10: conversion table, D1 to D4: output data of the conversion table.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G08B 17/00 H04M 7/14

Claims (4)

(57) [Claims] 1. A 4-bit data of a rotary switch .
A table for converting the sequence of other data 4 bits sequence; and means for reading the 4-bit data from said rotary switch; the sequence of data of the read 4-bit, based on the above table, the 4-bit Data conversion means for converting the data into another data arrangement ; and a terminal device in the fire alarm system. 2. A 4-bit data of a rotary switch .
A plurality of tables for converting the sequence of other data 4 bits sequence; and table selecting means for selecting a predetermined table from the plurality of tables; and means for reading the 4-bit data from said rotary switch; I this read 4 the sequence of bits of data, based on the selected table, the other data of the 4-bit
Data conversion means for converting into an array ; and a terminal device in a fire alarm facility. (3) In claim 1 or claim 2, The above table is a rewritable nonvolatile EEPROM
M
Terminal equipment. (4) In claim 2 or claim 3, The table selecting means selects the predetermined table.
It is a table changeover switch that is manually operated.
Terminal equipment in fire alarm facilities.