JPH0135395B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an operation notification device, and more specifically, the present invention relates to an operation notification device, and more specifically, it transmits an operation signal from a detector provided on each child unit located far away to a central base unit. The present invention relates to an operation notification device for determining from which slave unit the signal is sent by a base unit, and for notifying an alarm of the operating status of the slave unit.

[Conventional technology]

For example, in large buildings, temperature detectors, smoke detectors, door opening/closing detectors, passage detectors, etc. are installed in each room, hallway, stairway entrance, etc. in case of abnormal situations such as theft or fire at night. A slave unit equipped with a transmitter, etc. that transmits the operation signal of the detector and its detector to the central monitoring side is placed, while a master unit is placed on the central monitoring side, and the operation signal from the slave unit is transmitted wirelessly or by wire. The system receives the signal, determines which handset the signal came from, and notifies staff of the location where the abnormal situation has occurred.

In addition, a master unit is installed at the fire station, and a slave unit consisting of a detector to detect the occurrence of a fire and a transmitter to transmit the operating signal is installed in each home. The system identifies the location of the fire and alerts police personnel to the location of the fire.

Furthermore, in each home, slave units consisting of designated detectors, transmitters, etc. are placed at entrances, windows, bathrooms, etc., while base units are placed in places where people are always present. The base unit receives the signal from the machine, identifies which slave unit the signal came from, and reports it, allowing you to immediately know where and what is happening.

When the detector installed on each slave unit operates in this way, the operating signal is sent to the base unit, and the base unit determines which slave unit the signal was sent from, and then the slave unit In order to notify the operating status of the handset, conventionally each handset is equipped with a frequency generating means specific to that handset.
When the detector of a slave unit operates, the frequency signal is sent to the center, while the base unit is set to a frequency specific to each slave unit, and the specific frequency signal sent is set to the base unit. The handset that activated the detector was identified by determining which frequency matched the detected frequency.

[Problem that the invention seeks to solve]

For this reason, with conventional operation notification devices, the frequency generation means on the handset side must be accurately adjusted so that the frequency always matches the frequency set on the base side. There was a drawback that the operation of the handset side was overlooked.

In addition, in such conventional operation notification devices, a bandpass filter must be installed in the base unit to distinguish the frequency signals unique to each slave unit transmitted from each slave unit, and it is necessary to change the transmission frequency of each slave unit. case,
It is not easy to change the passband of the bandpass filter provided in the base unit accordingly. Furthermore, in order to prevent interference between the transmitting frequency bands occupied by each handset, it is necessary to provide a considerably wide transmission frequency band, which has the drawback of limiting the number of handsets.

Furthermore, adjusting the oscillation frequency on the handset side is quite troublesome, and unless you ask an expert, it cannot be adjusted to exactly match the set frequency of the master unit, and even after adjustment, there are problems due to the effects of ambient temperature. Alternatively, the oscillation frequency fluctuates somewhat due to power supply fluctuations, etc., making it difficult to match it with the set frequency of the base unit.

Moreover, even if the frequency of the slave unit is adjusted accurately, if noise pulses are mixed in during transmission, the base unit will not be able to confirm this and the operation of the slave unit will be overlooked. It was hot.

[Means for solving problems]

An object of the present invention is to eliminate the drawbacks of the above-mentioned prior art, and to digitally process the signal transmitted from the slave unit within the base unit, thereby eliminating the influence of fluctuations in the oscillation frequency of the slave unit and noise pulses. An object of the present invention is to provide an operation notification device that allows a base unit to reliably check the operating state of a slave unit.

In order to achieve this object, the present invention includes a detection means for detecting a predetermined state change, and a pulse generation means for generating a pulse signal at a predetermined rate within a reference time, and when the detection means operates, the A plurality of slave units that transmit pulse signals, an identification unit that receives the pulse signal transmitted from the slave unit and identifies the slave unit that transmitted the pulse signal based on the pulse signal, and responds to the identification unit. In the operation notification device, the operation notification device is provided with a base unit comprising a notification means for notifying the operation of the identified slave unit, and the base unit includes a pulse signal number generated from each slave unit within the reference time. approximating the number of pulse signals received by the base unit per the reference time from each slave unit to one of the set values of the slave unit identification number setting means. The identification means is constituted by an approximation processing means for processing, and a coincidence judgment means for judging a coincidence between the approximation processing result and each of the above-mentioned respective slave unit identification number setting values, and is configured to identify the slave unit that has transmitted the pulse signal. It is characterized by the following.

〔Example〕

Hereinafter, an embodiment will be described with reference to FIGS. 1 and 2, in which the operation notification device of the present invention is applied to a case where the operation status of four slave units is identified and the operation notification is performed using a wireless transmission means.

In Figure 1, S ₁ to _{S 4} are slave units, and each slave unit is
A state detector 1 serves as a detection means for detecting a change in a predetermined state of a temperature detector, a smoke detector, a door opening/closing detector, a passing detector, etc. When the state detector 1 is activated, a predetermined number of changes occur within a reference time. Pulse signal f _s with a frequency specific to the child unit so as to generate a pulse signal at a rate of
A pulse generator 2 as a pulse generating means for generating a pulse signal, a carrier wave _fc generator 3 for transmitting the pulse signal to the base unit _S0 , a transmitter 4, and a transmitting antenna 5.
It consists of

On the other hand, the base unit is composed of a receiving antenna 6, a receiver 7, and a signal processing device 8 consisting of a slave unit identification number setting section 81, a reference time signal generation section 82, an arithmetic processing section 83, and an operation notification section 84.

The receiver 7 further includes an amplification unit 71 that amplifies the received signal f _c +f _s , a detection unit 72 that separates and extracts a pulse signal f _s specific to the slave device from the amplified signal, and further converts the signal into a waveform. Shaped and pulse signal f _s specific to the slave unit
It consists of a waveform shaping section 73 that restores the waveform.

Further, the configuration of each part within the signal processing device 8 is configured as shown in FIG. 2, for example.

In other words, 831 in FIG. 2A indicates that the pulse signal _fs from a specific slave unit taken out from the receiver 7 is outputted from the reference time signal generator 82 when the output signal a from the reference time signal generator 82 is in the state of "1", that is, the reference time T. The interval count value is sent to an approximation processing circuit 832 as an approximation processing means, where approximation processing such as rounding or truncation is performed.

A specific configuration example of this approximation processing circuit 832 is shown in FIG. 2c and will be described later.

The numerical value after the approximation process is stored in register 833.
Transfer to.

Reference numeral 811 is a handset identification number setting unit as a handset identification number setting means composed of an AND matrix, and a series circuit of a diode D and a switch SW is connected to each matrix intersection as shown in FIG. 2b. By turning on a predetermined switch SW in the row (horizontal) direction, the number of pulses to be generated from a predetermined child unit within a reference time T, subjected to approximation processing, and extracted is set.

For example, in the AND matrix shown in FIG. 2a, each bit's output line from register 833
y ₁ , y ₂ , y ₃ , y ₄ and NOT output lines y ₁ , y _{2 ,} y 3 , y ₄ branched from this output line and passing through inverters NOT ₁ , NOT ₂ , NOT _{3 ,} NOT ₄ . If the slave units S ₁ , S ₂ ... generate pulse signals fs ₁ , fs ₂ ... at frequencies of about 50 pulses, 70 pulses, etc. within the reference time T, respectively,
Correspondingly, each row direction setting device of the setting section 811 is
For ₁ , 〓 ₂ ..., only the second digits 5, 7... are set in binary 4 bits. 〓 in the figure represents the state in which the identification number has been set by turning on _the switch SW.
"〇〓〓〇〓〓〓〇 from left to right in figure a
becomes.

Therefore, from this setting section 811, the register 83
When the numerical value placed in 3 matches the slave device identification number setting value set in each row direction of the setting section 811, an output is generated at the row direction output terminals O ₁ to O ₄ .

This output is applied to a timer 834 and a counter 835 that counts a predetermined number.

The numerical value in the register 833 is replaced with a new value one after another according to the reference signal T generated at a constant period.
Each time, an output is generated at a predetermined row direction output terminal of the setting section 811.

Each timer 834 responds to the first output O ₁ , O _{2 .} . . and resets each counter 835 after a predetermined period of time.

Each counter 835 counts the number of outputs generated, and when a predetermined number of counts are performed within a predetermined time after receiving the output signal for the first time, a signal is given to the operation notification section 84 as an operation notification means.

The operation notification unit 84 is composed of a display 841 that displays that each slave unit has operated, a sound generator 842 and a speaker 843 that generates a sound unique to the slave unit, and provides notification in response to the output of the counter 835. The device works. In addition, A ₁ to A ₃ , A ₅ in the figure
~A ₈ indicates an AND gate, I indicates an inverter, and OR indicates an OR gate.

The specific operation of the operation notification device configured as above will be explained next.

When the status detector 1 installed in _{the slave unit S 1 in} FIG. The carrier wave generator 3 operates by generating a pulse signal f _s1 generated by the carrier wave generator 3 . In the transmitter 4, a signal obtained by modulating the pulse signal wave f _s1 with a carrier wave f _c is transmitted from the antenna 5 toward the base unit S ₀ .

The base unit S ₀ receives the radio waves transmitted from the slave unit S ₁ using the antenna 6, and the receiver 7 performs processing such as amplification, detection, and waveform shaping to generate a pulse signal generated by the slave unit S _1. Restore to fs ₁ and take out.

Next, this pulse signal fs ₁ is input to the signal processing device 8 provided in the base unit S ₀ .

The pulse signal _fs1 input to the signal processing device 8 is ANDed with the reference time signal a generated at a constant period _T0 from the reference time signal generator 82 shown in FIG.
It is applied to the gate _A1 and input to the counter 831 during the reference time T period in which the reference time signal a is in the "1" state.

The counter 831 counts this pulse signal fs and applies the value to the approximation processing circuit 832 via the AND gate _A2 within the period T in which the reference time signal a is in the "0" state.

The approximation processing circuit 832 performs approximation processing, such as rounding or truncating, so that the numerical value input therein becomes one of the set values of each slave device identification number setting means.

An example of the counter 831 and the approximation processing circuit 832 is shown in FIG. 2c.

The binary coded decimal counter 831 is 4 representing the first digit.
It consists of a counter 831A with a bit configuration, a counter 831A with a 4-bit configuration representing the second digit, and a counter 831B with a 4-bit configuration representing the second digit.

The approximation processing circuit 832 shows an example of rounding, and outputs each bit of the counter 831A to an AND gate _A5 .
~A ₈ is connected as shown in the figure using an OR gate and inputted to the counter 832B.

When the count value of the counter 831A representing the first digit reaches 5 to 9, a carry output "1" is added to the counter 832B via the AND gate _A3 . When the count value of the counter 831A is 0 to 4, no carry is performed because there is no OR gate output.

On the other hand, the count value of counter 831B representing the second digit is directly transferred to counter 832B via AND gate _A2 .

Therefore, the counter 832B includes the counter 83B.
1 counts input pulses, and the second digit count value obtained by rounding off the first digit is accumulated.

In addition, when performing the rounding process, it is sufficient to extract only the value of the counter 831B representing the second digit, and when it is desired to round down a predetermined number, for example, 3 or less, the value of the counter 831A representing the first digit is extracted. When the value reaches 0 to 3, the count value may be forcibly set to 0, and the configuration within the approximation processing circuit 832 can be designed arbitrarily.

In this way, for example, the pulse signal fs ₁ unique to the slave unit generated from the slave unit S ₁ is changed to 47 pulses when it should be generated within the reference time T due to the influence of the ambient temperature in which the slave unit is placed. If only this occurs, the counter 831 provided in the base unit S ₀ will:
Input this pulse and count 47. this value
47 is further added to the approximation processing circuit 832, where the first digit is rounded off and carried to the second digit, and as a result, 5 is set in the counter 832B.

This value 5 is transferred to a register 833 with a 4-bit configuration, outputs are generated at the 1st bit _y1 and the _3rd bit y3, and each output line to the slave unit identification number setting section 811 is output.
₁ , 0, y ₁ , y ₁ , y ₂ , y ₂ , y ₃ , y 3 , y ₄ , y ₄
0, 1, 1, 0, 0, 1 are output, and the match judgment means judges whether or not the AND condition with the setting value of the setter of 〓 ₁ of the handset identification number setting section 811 is satisfied, and it is determined that there is a match. If a decision is made, an output is generated at output terminals 0 _{and 1} .

This output signal sets the timer 834 and simultaneously sets the contents of the counter 835 to 1.

The signal sent from the slave unit S ₁ is restored to the pulse signal fs ₁ generated by the slave unit S ₁ via the receiver 7 and is continuously extracted, and then processed by the signal processing device 8.
Reference time signal generator 8 via AND gate _A1
Reference time signal a generated at a constant period _T0 from 2
This pulse is counted only during the "1" output time T of the reference time signal a, is added to the approximation processing circuit 832 at the subsequent "0" output time T of the reference time signal a, and the result is transferred to the register 833. This is repeated while the pulse signal fs ₁ is being sent in accordance with the generation operation.

As a result, an output signal appears at the output terminal each time the value transferred to the register 833 matches the value set in each setter 〓 ₁ , 〓 _{2 .} . . of the setting section 811.

In other words, the count value counted by the counter 831 every generation time T of the reference time signal a may be due to noise pulses being mixed with the number of pulses sent from the slave unit _S1 , or due to the temperature at which the slave unit is placed. In response to changes due to changes in power supply voltage, fluctuations in power supply voltage, etc., e.g.
It changes as 49, 53, 52, 54... However, this value is rounded off to 50 by the approximation processing circuit 832, and only the second digit 5 is set in the repetition register 833. As a result, the AND condition of the setter ₁ is satisfied, and it is repeatedly output from the output terminal _O1 . Output occurs.

When this output occurs, for example, four times in a row, that is, when the timer 834 is set to 4×T ₀ time and the value of the counter 835 reaches 4 within this time, the output is sent to the operation notification section. Add to 84.

If at this time, the 4× set by the timer 834
If no output is generated from the output terminal _O1 four times within _T0 time, the counter 835 is reset and the slave unit _S1
This is considered to be a malfunction, and no operation notification will be made.

When the output of the counter 835 is applied to the operation notification section 84, the display lamp of the display 841 corresponding to the slave unit _S1 lights up, and at the same time, the sound generator 842 is activated, and the speaker 843 emits an alarm sound unique to the slave unit. Emitted.

In this way, when the status detector 1, which represents the temperature detector, smoke detector, door opening/closing detector, etc. provided on the slave device _S1 , operates, the operation notification provided on the parent device _S0 correspondingly activates. The display 841 and speaker 843 representing the handset S ₁ of the section 84 are activated to inform the staff that the handset S ₁ has been activated.

In this case, the pulse signal from the slave unit input to the master unit S ₀ is counted at fixed time intervals T, and after approximation processing such as rounding or truncating the value is performed, it is possible to identify which slave unit the pulse signal was input from. Therefore, the number of pulse counts may vary slightly due to the influence of noise pulses, changes in the ambient temperature of the slave unit, or changes in the reference time T of the reference time signal a due to fluctuations in the power supply within the base unit. Even if
Thereby, the operation of the slave unit can be reliably grasped without fear of overlooking the operation of the slave unit.

Moreover, since the identification of the handset in the base unit is such that the operation of the specified handset is notified only when a predetermined number of matches are made within a predetermined time, there is no possibility of malfunction of the handset or error due to noise pulses. There will be no notification of any other action.

The above has described an example in which an embodiment of the present invention is configured using counters, registers, approximation processing circuits, AND matrix circuits, timers, etc., and performs operation notification, but it is also possible to configure this using a microcomputer. can.

Next, the signals emitted from the four slave units S ₁ to S ₄ are received by the base unit S ₀ using a microcomputer,
Examples of displaying operations will be described with reference to FIGS. 3 to 7.

In this case, the configuration of each slave unit S ₁ to S ₄ and the configuration of the receiver 7 in the base unit S ₀ are the same as the configuration illustrated and described in FIG. 1.

FIG. 3 shows the signal processing device 8 of FIG. 1 of the base unit _S0 .
Only the component corresponding to is shown, and a pulse signal fs generated by _each slave unit from the receiver 7 at a frequency unique to that slave unit, that is, a predetermined ratio of the pulse signal fs within the reference time is applied to the diode D1. . Reference numeral 9 denotes a handset identification number setting section as a handset identification number setting means, and a series circuit of a diode D and a switch SW similar to that shown in FIG. 2b is connected to each matrix intersection. To set the identification number in the handset identification number setting section 9, for example, use two horizontal lines and set the second digit and first digit in the binary coded decimal system by turning on the switches at the predetermined positions. do. For example,
S ₁ , S ₂ ... generate each pulse signal fs ₁ , fs ₂ ... by the pulse generating means at a frequency of about 50 pulses, 70 pulses ... within the reference time T when the reference time signal a is in the "1" state. In this case, correspondingly, each row direction setting device of the setting section 9 has setting values 〓 ₁ = 50, 〓 ₂ = 70...
is set in a 4-bit binary coded decimal system,
(The cross mark in the figure indicates the state in which the switch SW is turned on and the identification number, ie, the set value, is set.)

In this case, it goes without saying that the setting value can be set using three or even four digits depending on the size of the setting value.

The values in the setting section 9 are input to the microcomputer 10.

The microcomputer 19 is composed of a central processing unit (CPU) 11, a random access memory (RAM) 12, a read only memory (ROM) 13, and a clock pulse generator 14.

Each instruction is read-only memory (ROM)
Based on the program built in 13, the clock Cp from the clock pulse generator 14 is used to input and output information from the central processing unit (CPU) 11 to each input/output device and random access memory (RAM) 12. be done.

Reference numeral 15 denotes a reference time signal generator, which generates a signal a that continues to output "1" for a reference time T in a constant time period _T0 .
occurs.

16 is a decoder and central processing unit (CPU) 11
A display unit 1 provides output to a display unit 17 and a sounding unit 18 based on a signal from the display unit 1 to display the operating status of the slave unit.
While driving a predetermined display among 7-1 to 17-4, the sound generating unit 18 generates an alarm sound unique to the slave unit.

The operation of the apparatus configured in this way will be explained using the flowcharts shown in FIGS. 4 to 6 and the diagram showing the memory contents in the random access memory 12 shown in FIG. 7.

The memory in the random access memory (RAM) 12 is configured in a binary coded decimal system with 4 bits per word. In the following description, random access memory is referred to as RAM, read-only memory as ROM, central processing unit as CPU, accumulator in CPU as Acc, and memory locations such as address O and address A in RAM. are expressed as MO, MA, etc., and the contents are written in brackets as [Acc], [MO], [MA].
etc.

First, when you manually turn on the power to the base unit S ₀ ,
Program instructions contained in the ROM 13 are sequentially executed. Step 20 based on that instruction
Now, reset all memory contents of RAM12. Next, in step 21, the setting values 〓 ₁ to 〓 ₄ , for example 50; digit); 2nd address and 3rd address; ... are sequentially stored in memory locations MO and M1; M2 and M3...

Reference numeral 22 has no meaning as a program connector or a program command, but is a symbol provided for linking with a program to be described later.

Next, in step 23, the reference time signal generator 15
From this, it is determined whether the reference time signal a is in the "1" output state.

If the reference time signal a is in the "1" output state, it is determined in the next step 24 whether or not there is a pulse signal sent from the slave unit. If not, return to step 23 and repeat the same program steps. At this time, pulse signal fs ₁ from slave unit S ₁
is taken out into the main unit, its pulse 1
is stored in the slave device S ₁ pulse storage location consisting of address A (first digit) and address B (second digit) of RAM 12. When one input pulse signal is read, the program returns to the program connector 22 and returns to the program step 23.
Run ~25 and read the next input pulse. This operation continues while the reference time signal a is in the "1" state. As a result, the number of pulses input while the reference time signal a is in the "1" state is stored in the A and B address storage locations MA and MB in binary coded decimal notation. for example,
If the number of input pulses at this time is 53 pulses, "0011" is stored in the storage location MA at address A, and "0101" is stored in the storage location MB at address B.

When the reference time signal a becomes "0", step 23
The judgment result in step 2 is NO, and the process branches to step 26.

Step 26 is the address C memory location MC of RAM12.
Determine whether there is a count flag.

This count flag is set and reset in the program steps described below.

If there is no count flag in the C address storage location MC, the process moves to the program connector 27.

In program step 29 of FIG. 5, the value of the first digit [MA] of the pulses emitted from the handset stored at address A and taken out within the reference time T.
Read out to Acc.

The approximation processing means determines whether this content is smaller than 4 in step 30.

If the judgment result is YES in step 30, step
At 32, set [Acc] to 0 and store this in MA.
Further, if the judgment result is NO, in step 31, [Acc] is set to 0 and stored in MA. Also,
If the judgment result is NO, in step 31, set [Acc] to 0 and store it in MA, and set [MB] to 1.
and store that value in a new MB.

As a result, the number of input pulses from the slave unit stored in MA and MB is rounded off and the values are newly input into MA and MB. That is, approximation processing is performed.

Next, in step 33, enter the second digit value [M1] of the setting value corresponding to slave unit _S1 set in the parent unit.
Read to Acc. This value [Acc] is 2 times the number of approximated input pulses stored in MA and MB.
Subtract from the digit value [MB] and put the difference in Acc.

[Acc] is 0 in step 34 as a means of determining the match.
Make a judgment as to whether or not. That is, it is determined whether the second digit of the setting value corresponding to slave unit S ₁ matches the second digit of the input pulse number approximate value, and if YES, the process advances to step 35, and if NO, the process advances to step 35. Move to 39.

In step 35, the memory contents at address 10 [M10] are set to 1.
is added and stored in M10, and taken out to Acc, and in step 36 it is determined whether the value has become 4 or not. That is, the match determination at step 34 is performed four times, and it is determined whether or not there is a match all four times. If the result is YES, in step 37 the D address memory location MD is
1 is set to indicate the operation of the slave unit _S1 , 1 is set to the C address memory location MC, a count flag is set to indicate that there has been a match four times, and the process moves to the program connector 28. On the other hand, in the case of NO, the process directly moves to the program connector 28. [MD]=1
Then, this value is taken out via the decoder 16 and given to the display section 17 to drive the display section 17-1 which displays the operation of the slave unit _S1 .

By the way, if the judgment result in step 34 is NO, the process moves to step 39, this time the memory contents of M3 [M3] are read into Acc, the difference between it and [MB] is stored in Acc, and in step 40, [Acc] is Determine whether it is 0 or not. That is, this time it is determined whether the setting value corresponding to slave device S ₂ and the input pulse number approximate value match.

If the result of the determination is YES, then in step 41 the number of matches is stored in the storage location 11 and at the same time taken out to Acc, and in step 42 it is determined whether the value has reached 4 or not. That is, the match determination in step 39 is performed four times, and it is determined whether or not there is a match all four times. If the result is YES, the step
At step 43, set 2 in the D address memory location MD to display the operation of slave unit S ₂ , set 1 in MC, set a count flag indicating that there has been a match four times, and move on to program connector 28. do. on the other hand
In the case of NO, the process directly moves to the program connector 28.

However, if it is determined NO in step 40, a program similar to the above program that identifies a series of slave units is executed to determine the approximate value of the input pulse number to be the set number corresponding to slave units S ₃ and S ₄ . Determine whether 〓 ₃ , 〓 ₄ match or not, and if they match, 12
Add 1 to the memory contents of addresses 13 and 13 [M12] and [M13], and when the number reaches 4, each slave unit S ₃ and S ₄
The codes 3 and 4 representing 0 are set in the D address memory location MD, and the count flag MC is set to 1, and the program is transferred to the program connector 28. Furthermore, if the input pulse signal is not determined to have been emitted from the slave units S ₃ and S ₄ , the program connector 22
Return to

The series of program steps shown in FIG. 6 is a program for generating an alarm sound specific to each handset in the sound generating unit 18 shown in FIG. Determine whether or not to emit an alarm sound corresponding to _S1 . That is, in the program shown in Fig. 5 explained earlier, if the input pulse signal is emitted from slave unit _S1 , MD
1 is set in MD in the case of slave unit S ₂ , 2 is set in MD in the case of slave unit S ₂ , and 3 and 4 are set in MD in the case of slave units S 3 and S ₄ , so this memory content [MD] is set. investigate.

As a result, if [MD]=1, in program step 45, the sound generating section 18 is driven via the decoder 16 to generate an alarm sound representing the slave unit _S1 , and the process proceeds to step 48.

In step 48, the staff checks the slave unit whose operation has been notified to the base unit and determines whether a reset has been performed by pressing the reset button, etc., and if YES, the number of matches is stored in M10. ~M13 memory contents, MD to perform operation notification corresponding to each slave unit
The memory contents set in MC and the count flag set in MC are reset, and the process returns to program connector 22. If the answer is NO, the process returns to the program connector 22 and repeatedly executes the series of programs described above.

Next, the operation of the above program will be explained using specific numerical examples.

For example, when the status detector 1 of the slave unit S ₁ operates and transmission starts, the influence of the ambient temperature set for the slave unit S ₁ , the change in characteristics at the time of starting the slave unit, the power supply voltage trigger timing Due to the influence of fluctuations in
The pulse frequency generated by S ₁ fluctuates, and the number of pulses received by base unit S ₀ fluctuates due to the influence of noise pulses etc. during transmission, and the pulse signal fs ₁ extracted by base unit S ₀ changes as follows: It is assumed that 43 pieces, 46 pieces, 49 pieces, 40 pieces, and 53 pieces are sequentially extracted in synchronization with the generation of the reference time signal a.

First, the program shown in Fig. 4 is started, and after storing each handset setting value 〓 ₁ to 〓 ₄ in memory locations M0 to M7 at addresses 0 to 7 of the RAM, the program step is started.
By repeating steps 22 to 25, the 43 pulses sent from slave unit S ₁ during the time T when the output of reference time signal a is "1" are read, and the output from address A (1) is read.
digit) and B address (2nd digit) memory location MA,
Store 43 in the MB as a binary coded decimal number ([MA] =
3, [MB] = 4).

Next, when the output of the reference time signal a becomes "0", the program step branches from 23 to 26.

At step 26, since [MC]=0, the count flag is not set and the program branches to connector 27.

After branching to connector 27, steps 29, 30, 32
Approximate the number of pulses, 43, read by the program through , that is, round off. This result 40 is stored in MA and MB again ([MA] = 0, [MB]
=4).

Next, the setting value corresponding to slave unit S ₁ set in master unit S ₀ = ₁ = 50, second digit [M1] = 5, and the above approximated value, second digit [MB] = 4. A match determination is made in step 34. The result is NO, and in step 39 and step 40, the set value 〓 ₂ = 70
Make a match judgment. This result is also NO, and in the same way, it is determined whether it matches the set values 〓 ₃ , 〓 ₄ , and the result is NO in both cases, and the program connector 22
Return to

After returning to the connector 22, as described above, if the reference time signal a output is "1", the program step is executed.
Repeat steps 23 to 25, and this time, store the number of pulses input at this time, 46, in MA and MB.

46 has been memorized and the reference time signal a output is "0"
When this happens, the process moves from the connector 27 to step 29 via step 26 as before.

Next, in steps 33 and 34, it is determined whether the value 50, which has been rounded off through steps 30 and 31, matches the setting value _〓1 corresponding to the slave unit _S1 .

If the result is YES, 1 is added to the 10th memory location M10 in step 35, and it is determined in step 36 whether or not the number of matches has reached 4.

The result of this judgment is NO, and the step moves to the program connector 28. After moving to the program connector 28, it is determined which child unit sound is to be generated in steps 44 and below in FIG. Return to 22.

Returning to the program connector 22, the above-described series of programs for 49 input pulses is executed again, and in step 25, the program returns to the program connector 22 with [M10]=2.

Thereafter, a series of programs for 50 and 53 input pulses are executed in the same manner, but when the 53rd program step is executed, step 35 is executed.
Then, [M10]=4, and in the next step 36, the result is YES, and the process moves to step 37, where 1 is set in the memory locations MC and MD at addresses C and D.

As a result, a count flag indicating that the number of input pulses and the slave unit S ₁ setting value = ₁ match four times is set, and [MD] = 1 is given to the display unit 17 via the decoder 16, and the slave unit S 1 setting value = 1 is set. The display section 17-1 corresponding to the machine _S1 is operated.

Further, after passing through the program connector 28, the determination result in step 44 becomes YES, and in step 45, the sound generating section 18 is driven via the decoder 16 so as to generate a sound corresponding to the slave unit _S1 .

After the main unit S ₀ notifies the operation of the slave unit S ₁ in this manner, the operation notification is continued until a reset signal is input, such as by an operator confirming the operation and pressing a reset button.

Therefore, unless a reset signal is applied, the process returns to the program connector 22 via step 48.

In the step after returning to the program connector 22, when the reference time signal a is 1, the newly input pulse number is read into MA and MB and the stored contents are updated, but when the reference time signal a is "0", the stored contents are updated. At step 26, the program branches to program connector 28, passes through steps 44 and 45 in FIG. 6, and then moves to step 48, where the same program steps are cycled until a reset signal is received.

While the program steps are cycling in this way, when a reset signal is input, the program moves from step 48 to step 49, and here, for the first time, the memory contents of address 10, which stores the number of matches with the set value = ₁ , are stored. [M10], the count flag, and the memory contents of the D address [MD] = 1, which were set to notify the operation to the slave device _S1 , are reset, and the process returns to the program connector 22.

In this way, if the master unit S0 is configured using the microcomputer ₁₀ , after approximating the pulse signal sent from the slave unit, the slave unit identification number setting value set in the master unit S0 _{is 1 .} 〜〓 A match is detected by comparing with ₄ , and when a match is found 4 times, the operation of the handset is displayed on the display section 17, and an alarm sound unique to the handset can be generated from the sounding section 18.

Note that the program used in the microcomputer described above is merely an example, and the program may be designed as desired.

For example, in the above program, approximation processing is performed by rounding, but program steps 29 to 32
It is also possible to change the program to round down to a predetermined number or less. In addition, in the above program, the value after the approximation process in the program shown in FIG.
If ₁ to ₄ match 4 times, the operation is notified to the matched slave unit, but a step is provided before step 33 to judge the number of inputs.
When a predetermined number of times, for example, the fifth time, is reached, it is determined whether or not the count flag is set,
If it is not set, by resetting all the memory contents of M10 to M13, it is possible to create a program so that the operation notification is not performed unless it matches the predetermined handset identification number setting value four times in a row. .

In addition, when approximation processing is performed by rounding off, the first digit of the numerical value after processing is always 0, so it is only necessary to set the second digit in the handset identification number setting value 9. When storing the setting values in RAM, only the second digit of each setting value may be stored, reducing the storage space by half.

〔Effect of the invention〕

As described above, according to the present invention, the present invention includes a detection means for detecting a predetermined state change, and a pulse generation means for generating pulse signals at a predetermined rate within a reference time, and when the detection means operates, the A plurality of slave units that transmit pulse signals, an identification unit that receives the pulse signal transmitted from the slave unit and identifies the slave unit that transmitted the pulse signal based on the pulse signal, and responds to the identification unit. In the operation notification device, the operation notification device is provided with a base unit comprising a notification means for notifying the operation of the identified slave unit, and the base unit includes a pulse signal number generated from each slave unit within the reference time. approximating the number of pulse signals received by the base unit per the reference time from each slave unit to one of the set values of the slave unit identification number setting means. The identification means is constituted by a processing means and a coincidence determination means for determining the coincidence between the approximation processing result and each slave unit identification number set value, and identifies the slave unit that has transmitted the pulse signal. Unlike conventional devices, there is no need to accurately adjust the pulse frequency generated by each slave unit to ensure that the pulse signal is always sent at a predetermined frequency; Even if there is some variation in the number of pulses taken out by the base unit due to a shift in the voltage trigger timing or the influence of noise pulses during transmission, this can be approximated to determine the number of slave unit identifications set in the base unit. As a result of comparison with the set value, the signal generated from the handset is reliably captured and the operation is notified, so that the operation of the handset is not overlooked.

In addition, the base unit receives signals sent from the slave unit and processes them digitally to identify the slave unit, making it easy to set the number of slave unit identifications, and the number of slave unit Since it is not necessary to make the occupied frequency band width very wide, the number of slave devices can be increased, and other excellent effects can be achieved.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram of an operation notification device according to an embodiment of the present invention, FIG. 2a is a schematic configuration diagram inside the base unit, FIG. FIG. 2c is a circuit configuration diagram for performing the approximation process, FIG.
6 to 6 are flowcharts for explaining the operation, and FIG. 7 is a partial configuration diagram of the inside of the random access memory of FIG. 3. _S0 ...Main unit, _S1 , _S2 ...Slave unit, 1...Status detector, 2...Pulse generator, 3...Carrier wave generator,
4... Transmitter, 5... Transmitting antenna, 6... Receiving antenna, 7... Receiver, 8... Signal processing device,
81, 9...Slave device identification number setting section, 82, 15...
Reference time signal generation section, 83... Arithmetic processing section, 84
...Operation notification unit, 831...Counter, 832...
...Approximation processing circuit, 833...Register, 834...
...Timer, 835...Counter, 841...Display device, 842...Audio generator, 843...Speaker, 10...Microcomputer, 11...Central processing unit, 12...Random access memory, 13... ...Read Only Memory, 14...
...Clock generator, 16...Decoder, 17...
Display section, 18... Sound generation section.

Claims (1)

[Claims] 1. A device comprising a detection means for detecting a predetermined state change, and a pulse generation means for generating a pulse signal at a predetermined rate within a reference time, and when the detection means operates, the pulse signal is generated. a plurality of slave units that transmit, an identification unit that receives a pulse signal transmitted from the slave unit and identifies the slave unit that transmitted the pulse signal based on the pulse signal; In the operation notification device, the operation notification device is equipped with a base unit consisting of a notification means for notifying the operation of the identified slave unit, and the base unit includes each pulse signal representing the number of pulse signals generated from each of the slave units within the reference time. A handset identification number setting means, and approximation processing for approximating the number of pulse signals per the reference time from each handset received by the base unit so that it becomes one of the set values of the handset identification number setting means. The identification means is constituted by a processing means and a coincidence determination means for determining a coincidence between the approximation processing result and each slave unit identification number set value, and identifies the slave unit that has transmitted the pulse signal. An operation notification device characterized by: 2. The motion notification device according to claim 1, wherein the approximation processing means performs the approximation processing by rounding. 3. The motion notification device according to claim 1, wherein the approximation processing means performs the approximation processing by rounding down to a predetermined number or less.