JPH0447871B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an automatic group member roll call system for checking the number of members of a group.

When working together in a group of 20 to 30 people,
It is often necessary to know who the person is, but it is a time-consuming task, especially when checking to see if someone is missing. This caused the person in charge and the person in charge to panic.

Therefore, one possible method is to have each member of the group have one transmitter/receiver, and the person in charge has a transmitter/receiver for their parents, and this transmitter/receiver automatically checks the number of people. When checking who has a different transmitter/receiver based on the difference in sound waves, that is, a transmitter/receiver that operates at that frequency, it is necessary to use different frequencies for the number of people making up the group, and the parent's transmitter/receiver The equipment must receive each frequency separately, making the equipment larger and its adjustment more delicate. Furthermore, when a number of groups gather together, a wide frequency band is required, and there is a high risk of malfunctions due to interference.

OBJECTS OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned drawbacks and provide an automatic group member roll call system that checks the members of a group using a transmitter/receiver and requires only one frequency to be used by the transmitter/receiver.

Structure of the Invention A group of child transceivers whose transmission/reception switching device is switched by a central processing unit so that when a calling signal of its own number is received, a calling signal of a child with the next number is received, and a group of child transceivers to which each child's transceiver is connected. It consists of a parent transceiver that has a transmitting/receiving switching device that can transmit and receive the calling signal and the calling signal from each child's transceiver, and the parent transceiver registers the calling signal to the child's transceiver with a set number. After transmitting the number, switch the transmitting/receiving switching device to receive and start a timer. Each time a call signal to the next child is received from the transmitter/receiver of the child within the set time, one register is stored. When the calling signal is not received within the set time, the number stored in the register is stored in the memory, the register is updated by one, and the transmitting/receiving switching device transmits. , transmits a call signal with the number stored in the register, and after transmission, switches the transmission/reception switching device to reception again, and when the value in the register reaches the set end number and the roll call ends, the child number stored in the memory is sent. Automatic group roll call system in which the central processing unit performs processing to display the following information.

Embodiment FIG. 1 is a block diagram of an embodiment of the present invention.
P is the parent's transceiver and is owned by M ₀ , such as the person in charge of the organization. C ₁ to _{C o} are child transceivers, owned by each member of the group M ₁ to _{M o} , and each child transceiver C ₁ to _{C o} has its own number,
When the signal corresponding to that number is sent, it is activated and transmits the signal for the next number. Now, if it is necessary to make a roll call, first, the person in charge operates the parent's transceiver P and sends a calling signal _S1 consisting of a digital signal to the child's transceiver _C1 with the number 1. . The child transceiver C ₁ receives this paging signal S ₁ and sends a paging signal S ₂ corresponding to the second child transceiver C ₂ . Parent transceiver P
receives this call signal S ₂ and the first child's transceiver
C ₁ exists, that is, 1 in a certain area.
It can be confirmed that there is a member M ₁ of the organization who has a child transceiver C ₁ . Similarly, the second child transceiver C ₂ receives the above calling signal S ₂ and
The third child transceiver _C3 , which is the next number, sends out a paging signal _S3 . The parent transceiver P receives this calling signal _S3 and can confirm the presence of the member _M2 . In this way, the first number from the parent transceiver P,
That is, in the above embodiment, the first child transceiver
Sends a calling signal S ₁ of C ₁ and sends out a calling signal S 1 of child transceiver C ₁ ~ _{C o}
When receiving the calling signal S ₁ to _{S o} of its own number, it sends a calling signal to the child transceiver of the next number, and in a chain reaction, the child transceiver C ₁ to _{C o} calls the next number. This will send out a signal. In this way, the parent transceiver P receives the paging signals transmitted from the child transceivers C ₁ -C _o and recognizes the presence of the child transceivers C ₁ -C _o , that is, the members M ₁ -M _o . can be confirmed. But for example. In Figure 1, the members
When M ₄ is not present within a certain area, the calling signal S ₄ emitted from the third child transceiver C ₃ is
Since the fourth child transceiver _C4 is not reached, the next paging signal _S5 is not transmitted from the fourth child transceiver _C4 . Therefore, even if a certain period of time has passed after receiving the calling signal _S4 , the parent transceiver P does not receive the calling signal _S5 .
When the message is not received, it is displayed that the member _M4 does not exist, and the person in charge _M0 confirms this and sends a calling signal _S5 from the parent transceiver P to the member.
This is to proceed with the check of _M5 or below.

The above is an overview of one embodiment of the present invention, and below, the configuration and operation of the parent and child transceivers P, C ₁ to _Co of this embodiment will be described.

Figure 2 is a block diagram of the parent transceiver P.
is a central processing unit (CPU), 2 is a memory, and 3 is a manual input device, which is a start number setting switch that sets the transmitter/receiver number of the first child that sends out a calling signal, and a transmitter/receiver of the last child to be called. Machine C _o
end number setting switch to set the number of the group, simultaneous calling number setting switch to call all members of the organization, start switch to start calling, simultaneous calling switch, sending and receiving of children who have not sent yet. It has a number roll switch to display the aircraft number. 4 is the output interface circuit, 5 is the child transceiver
A display that displays the numbers C ₁ to _{C o} , 6 is an oscillator that makes an alarm sound from the speaker 7 when there is no transmission from the child transceivers C ₁ to C _o , and 8 is a ringing signal for the child transceivers. 9 is a modulator,
The carrier wave from the carrier wave oscillator 10 is modulated by the ringing signal from the amplifier 8 and outputted, and the bandpass filter 1
1. Transmitted from the antenna 13 via the transmission/reception switching device 12. The transmission/reception switching device 12 is the CPU 1
It receives a signal from the output interface circuit 4 via an output interface circuit 4, and switches between transmission and reception.
14 is a bandpass filter, 15 is an amplification demodulator that demodulates the modulated waves sent from the transceivers C ₁ to _Co to extract signals, and 16 is an input interface circuit. Further, FIG. 3 shows a block diagram of the structure of child transceivers C ₁ to _Co. Reference numeral 21 is a central processing unit (CPU), 22 is a memory, and 23 is a number setting switch, which is used to set the own number and the simultaneous call number. 24 is an output interface circuit, 2
5 is an oscillator that oscillates and sounds a ringing tone from the speaker when it receives a signal of its own number; 27 is an oscillator that generates a ring tone from a speaker;
An amplifier that amplifies the next signal of its own number output from CPU 1, 29 is a carrier wave oscillator, 28 is a modulator, 30 and 33 are band filters, 31 is CPU 1
32 is an antenna, 34 is an amplification demodulator that demodulates the modulated wave, and 35 is an input interface circuit.

Next, the operation of this embodiment will be described. first,
The person in charge of the group or the leader M ₀ is the parent's transceiver P
and each member of the group has a child transmitter/receiver.
Make each person possess C ₁ to C _o . Transmitter/receiver for each child
A general calling number and their own numbers are set in C ₁ to _{C o} by the number setting switch 23. For example, in this embodiment, it is assumed that the transmitter/receiver numbers of each child are set from 1 to 50. Then, a general calling number is set using the general calling number setting switch of the manual input device 3 of the parent transceiver P, and number 50 is set using the end symbol setting switch.

Therefore, first, regarding the roll call process, we will start with the processing flow in the parent transceiver shown in Figure 4, and the processing flow in the child transceiver shown in Figure 5.
This will be explained with reference to the processing flow of C ₁ to C ₅₀ .
The person in charge of the group _M0 uses the parents' transmitter/receiver P for roll call.
Turn on the start switch on the manual input device 3.
(Step 101 in FIG. 4), the CPU 1 reads out the number set by the start number setting switch and stores it in the register R in the memory 2.
In this embodiment, the number "1" is stored (step
102). Next, the CPU 1 switches the transmitting/receiving switching device 12 to the transmitting side via the output interface circuit 4 (step 103), and then sends out the calling signal of the digital signal number "1" stored in the register R. The amplifier 8 is connected to the output interface circuit 4
The above-mentioned calling signal is amplified through the modulator 9, and the carrier wave from the carrier wave oscillator 10 is modulated, and the above-mentioned calling signal S is transmitted through the bandpass filter 11, the above-mentioned transmission/reception switching device 12 which is in a transmitting state, and the antenna 13. ₁
(Step 104). After sending, the CPU
1 switches the transmitting/receiving switching device 12 to the receiving state (step 105), displays the value of the register R on the display 5, that is, the number "1" of the currently calling child transmitter/receiver, and sets the timer T to "0". ”.

In this way, the transmitted paging signal S ₁ is sent to the amplification demodulator 34 via the antennas 32 of child transceivers C ₁ to C ₅₀ , the transmission/reception switching device 31 which is switched to the receiving state, and the band filter 33 . The signal is input, demodulated, and input to the input interface circuit 35. The CPU 21 of the child transceivers C ₁ to C ₅₀ is
The process shown in the figure is performed at regular intervals, reading the calling signal _S1 from the input interface 35 (step S201 in Figure 5), determining whether it is the user's own number (step 202), and determining whether the number is the user's own number. Then, it is determined whether or not it is a general calling number which will be described later, and if it is not this general calling number, the process from step 201 is repeated again. 1st child transceiver C ₁
When the CPU 21 determines that it has received the calling signal _S1 , which is its own number (step 202), it activates the oscillator 25 via the output interface circuit 24, and makes a ringing tone sound from the speaker 26 (step 202).
204). At the same time, the CPU 21 switches the transmitting/receiving switching device 31 to the transmitting state (step 205), and transmits the number next to its own number, in this case, number "2" to the amplifier 27, the modulator 28, the band filter 30, and the transmitting/receiving switching device. 31, the signal is transmitted via the antenna 32 (step 206), and after the transmission is completed, the transmitting/receiving switching device 31 is switched to the receiving state (step 207). thus,
The transmitted child's transceiver number "2" is received by the second child's transceiver _C2 , and the first child's transceiver _C1
The same process as in (FIG. 5) is performed, and the next number "3" is transmitted.

In this way, when the parent transceiver P calls the first child transceiver _C1 , the child transceiver calls the next numbered child transceiver one after another. In this way, the calling signal of the next number transmitted from the child transceiver is received by the antenna 13 of the parent transceiver P, passes through the transmitting/receiving switching device 12 which is in the receiving state, the band filter 14, and is passed through the amplifying/demodulating device 1.
5 and read from the CPU 1 via the input interface circuit 16. That is, as shown in FIG. 4, the parent transceiver P transmits the number " ₁ " to the first child transceiver C1 (step 104), and the parent transceiver P transmits the number "1" of the first child transceiver C1 (step 104), and transmits and receives the child currently calling in the receiving state. The machine is waiting while displaying the number of machine _C1 (steps 105 and 106). Then, the parent transceiver P
CPU 1 is waiting while determining whether it has received a signal with a number one more than the value currently stored in register R in memory 2 ("1") (step 1).
107), if received, set “1” to the register R above.
(step 108), and if this added value is smaller than the number set by the end number setting switch (step 109), the value of this register R is displayed on the display 5.
is displayed, and the timer T is set to "0" again (step 106). In this way, the parent transceiver P receives the calling signals transmitted from the child transceivers C ₁ to C ₅₀ one after another and displays them on the display 5. When the parent is outside the area where a calling signal can be received, the child's transceiver does not transmit a calling signal, so the parent's transceiver P cannot receive the calling signal. for example,
The fourth child transceiver as shown in Figure 1
When the person with C ₄ , M ₄ , is not present, even if the third child's transceiver C ₃ sends a calling signal S ₄ ,
The next ringing signal, _S5 , is not received by the parent transceiver P. In other words, the value of the register R of the parent transceiver P stops at "4", and the display 5 currently indicates "4".
It is displayed that the th child transceiver _C4 is being called (step 106). Therefore, timer T
If the calling signal _S5 that calls the fifth child's transceiver is not received within the time set in, for example, 5 to 6 seconds (steps 107 and 108), the CPU 1 activates the oscillator 6 and outputs the signal from the speaker 7. An alarm is sounded (step 111), and the value of register R, ie, "4", is stored in memory 2. Therefore, the person in charge
When _M0 hears the alarm and then presses the start switch again (step 113), the CPU 1 switches the transmission/reception switching device 12 to the transmitting state (step 114) and changes the value of register R, that is, "4" to "1". is added, and a calling signal _S5 having the value "5" of this register R is transmitted (step 115). After making the call, the transmitting/receiving switching device 12 is switched to the receiving state (step 116), and the value "5" in the register R is compared with the value set by the end number setting switch, that is, "50". is carried out, and when the value of register R becomes larger than the value "50" set by the end number setting switch, the roll call processing ends (step 109), and the CPU 1 activates the transmitter 6.
Generate an alarm sound from speaker 7 (step
117).

Then, the display 5 shows this last transmitter/receiver.
The number "50" for C ₅₀ is displayed, indicating that the roll call has ended.

Therefore, the person in charge of the group M ₀ turns on the number call switch on the manual input device, and the CPU 1
is to sequentially display on the display 5 the numbers stored in the memory 2 from which the calling signal could not be received, that is, the transceiver numbers owned by persons who do not exist within a certain area.

This allows the person in charge _M0 to confirm who does not exist.

In the above embodiment, when the parent transceiver does not receive a calling signal from the child transceiver _C4 ,
An alarm is sounded, the value of register R at that time, that is, the number of the transmitter/receiver of the child that does not transmit, is stored in memory 2 (steps 111, 112), and the start switch is turned on again (step 113).
Although the roll call process from step 114 is started again, the process from step 114 may be automatically performed without pressing the start switch. That is, when CPU 1 stores the value of register R in memory 2 (step
112), then the transmitting/receiving switching device may be switched to transmitting (step 114), and the processing from step 115 onward may be performed.

Next, the effect when the person in charge of the organization _M0 presses the call switch will be described. When the simultaneous paging switch is pressed, the CPU 1 sets the transmission/reception switching device 12 to the transmitting state and transmits the simultaneous paging number set by the simultaneous paging number setting switch, and the slave transceivers C ₁ to C ₅₀ are activated as shown in FIG. As shown, when it is determined that the simultaneous calling number has been received (step 203), the oscillator 25 is activated and a ringing tone is generated from the speaker 26. By pressing the paging switch several times or holding it down for a long time, you can set the child transceiver C ₁ to _{C 50} .
Persons M who possess child transceivers C ₁ to C ₅₀ who can distinguish whether it is a ringing tone for roll call or a general ringing tone by generating a ringing tone several times in succession or over a long period of time. ₁ to _M50 , for example, allows users to know that it is time to meet when a simultaneous ringing tone sounds.

In the above embodiment, the child transceivers C ₁ to C _o are numbered from 1 to 50, but by changing the numbers set with the start number setting switch and end number setting switch, the child transceivers C 1 to C o are numbered from 1 to 20. No., No. 30 to No. 100,
By setting numbers arbitrarily such as 150 to 200, it is possible to manage the members of multiple different organizations using the same frequency.

Effects of the Invention The present invention can avoid interference because communication is performed using one frequency, and communication can be performed for each group with an arbitrary number of members and for multiple groups. , it is possible to automatically and quickly perform assembly and roll calls for each group by calling all at once. Furthermore, if there is someone who is not in the area as a result of roll call, that number is memorized and displayed, which is very convenient for group management.
Further, since the roll call is performed in a chain reaction from child transceiver to child transceiver, the roll call is carried out quickly.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a block diagram of an embodiment of a parent transceiver of the present invention, and FIG. 3 is a block diagram of an embodiment of a child transceiver. 4 shows a processing flow of an embodiment of a parent transceiver, and FIG. 5 shows a processing flow of an embodiment of a child transceiver. P...parent's transceiver, _C1 ~Co _... child's transceiver, _M0 ...responsible person, _M1 ~ _Mo ...members of the organization.

Claims (1)

[Scope of Claims] 1. A group of child transceivers whose transmission/reception switching device is switched by a central processing unit so that when a calling signal of its own number is received, it transmits a calling signal of a child of the next number, and a group of child transceivers of each child. It consists of a parent transceiver that has a transmitting/receiving switching device that can transmit and receive a calling signal to the transceiver and a calling signal from each child's transceiver. Store the calling signal in a register, and after transmitting the number, switch the transmitting/receiving switching device to receive and start a timer, and every time a calling signal is received from the transmitter/receiver of the child to the next child within the set time. One register is updated, the timer is reset and started, and if the call signal is not received within the set time, the number stored in the register is stored in the memory, one register is updated, and the above transmission/reception is started. Switch the switching device to transmit, send a call signal with the number to be stored in the register, and after transmitting, switch the transmitting/receiving switching device to receive again, and when the value in the register reaches the set end number and the roll call is completed, the call signal is stored in the memory. An automatic group roll call system in which the central processing unit performs processing to display the number of each child. 2. The organization set forth in claim 1, wherein by transmitting a specific calling signal from the parent's transceiver, each child's transceiver receives the specific calling signal and sounds an alarm sound. Automatic personnel roll call system.