JPS62206474A - Recognition of individual body - Google Patents

Abstract

PURPOSE:To enable the recognition of moving states of individual bodies at a high speed, by changing the electromagnetic wave transmission cycle of a transmitter/receiver for detecting the presence of the individual bodies by a response signal to a specified electromagnetic wave corresponding to the moving speed of the individual bodies. CONSTITUTION:A transmitting/receiving terminal is arranged as connected to a central unit in monitoring areas such as offices to transmit an electromagnetic wave with an assigned frequency and receive a response signal from the badges possessed by individual persons. In response to a command from the central unit, the transmitting/receiving terminal sends out a control signal to transmitting sections 221 and 222 and a selector 25 from an interface 214 and transmits an electromagnetic wave with a specified frequency repeatedly for a specified time and at a fixed cycle from an antenna 16. In case of an emergency, for example, outbreak of a fire hazard, the sending cycle is shortened by a command from the central unit thereby enabling the determination of moving states of individual persons rapidly.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for recognizing where a moving object such as an individual or a transport vehicle is located in an office, research institute, factory, etc. It is something.

[Conventional technology]

In the past, in order to prevent illegal entry into specific guarded areas, cards, badges, etc. were provided to those who were allowed to enter.
The method of confirming the person authorized to enter is by requesting the presentation of these at the entrance, or by inserting the card into a card reader, or by assigning a specific number, password, etc. to each person authorized to enter, and inputting it using a keyboard etc. Generally, methods are used to confirm the person who is allowed to enter, such as registering the person's fingerprints, voiceprint, retinal blood vessel shape, etc. as a pattern, and using photoelectric detection to confirm the person who is allowed to enter.
These are used to recognize the identity of the person authorized to enter.

In recent years, with the aim of improving the operating efficiency of each moving individual in offices, research institutes, factories, etc. and easily obtaining information on the location of each moving individual, It is possible to grasp the location of each individual from time to time, and to generate a request to immediately transmit necessary information or commands to the target individual, or in the event of an emergency such as a fire outbreak. However, it has become necessary to convey appropriate instructions and comprehensively implement countermeasures.However, when using conventional methods, it is only possible to control access to specific parts, and it is not possible to control each individual in a wide external area. The disadvantage is that it is not always possible to recognize the

Therefore, as a countermeasure to this problem, an "individual recognition method" applied separately by the present applicant is used to repeatedly transmit electromagnetic waves of a specific frequency to a specific monitoring area for a predetermined period of time, so that multiple individuals can identify each individual. When the electromagnetic wave is received by the equipped receiver, each individual transmits an electromagnetic wave of the same frequency as a response to each individual by its own transmitter after a delay time that is determined differently for each individual, and the response transmission is received. A method has been proposed in which each delay time is detected individually and the presence of each individual within a monitoring area is recognized based on the detection results.

[Problem to be solved by the invention] However, with this method, when the movement speed of each individual increases in an emergency, etc., the transmission to the monitoring area is always repeated at a constant cycle, so it is possible to increase the speed. This creates a problem in which the movement status of each individual cannot be grasped.

[Failure to solve the problem]

In order to solve the above-mentioned problems, the present invention is constructed by the following means.

That is, in the above-described method, the fixed period of transmission is shortened as the moving speed of each individual increases.

[Effect]

Therefore, as the transmission cycle for the monitoring area is shortened, the recognition cycle for each individual is also shortened, making it possible to recognize the movement status of each individual at high speed.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to figures showing examples.

Figure 2 is a block diagram of the entire configuration.
□ - Transmitting/receiving terminals (hereinafter referred to as 5R) having electromagnetic wave transmission and reception functions into 1n 211 - 211 to 2n1 - 2
n, which also has the function of a telephone, and has signal multiplexing duplexers (hereinafter referred to as FDVs) 31~3□
Private branch exchange (hereinafter referred to as PB)
X) It is accommodated in 4 and FDV311~3nJ
It is also connected to solid equipment (hereinafter referred to as CTE) S such as an electronic computer, and CTE: 5 is connected to operating equipment (hereinafter referred to as MMI) 6 such as a keyboard, cathode ray tube display, and printer.
is included.

In addition, each SR2□1-2nl repeatedly transmits electromagnetic waves of a specific frequency for a predetermined period of time in response to a command from the CTg5, while each individual in each room 1□-1n (hereinafter referred to as IO) 7□~7m possesses a badge that has the function of transmitting and receiving electromagnetic waves.
When receiving electromagnetic waves from R2□1~2nl, each IO7
After a delay time that is set differently every □~7m, each responds by transmitting an electromagnetic wave of the same frequency9, and this response is sent to each SR2□ and ~2n.

According to the results received and the delay time detected individually,
The existence of each ID7e to ID7m is recognized.

For each SR2□2nj, the effective range of transmission and reception is determined, and this is defined as the monitoring area 8□□~8□l~8n□~
8nJ are arranged adjacent to each other, and each SR2□, ~2njl adds its own address number to each recognition result and sends it to CTE5, so in CTE5, which IO is connected to which room? It is designed to comprehensively recognize which part of the body it exists in and display it on the MMI 6 or print it out periodically.

Figure 1 shows the transmission status of each SR2 and each IO7□~7m
This is a timing chart showing the response transmission status of SR.
2 is the specific frequency f as shown in (a). Therefore, in normal times, the constant period T0 is, for example, 5 seconds and the predetermined time T. Repeat the transmission for each IO7□ period.
~7m, the predetermined time T starts immediately before the transmission (,). During the period until immediately after the end of cycle T1, the power supply (b) of the receiving unit is turned on in synchronization with cycle T1, and when transmission (-) is received, each IO
7□~7m timer starts, each ID7,~7m
After the delay time t0 to tm, which is determined differently for each time, has elapsed,
Each has the same frequency f. Response transmissions (cf to (e)) are performed individually.

Therefore, in each SR2, each IO7□ to 7m exists within its own monitoring area 8 according to the delay time t0 to tm from the end of its own transmission until it receives response transmissions (c) to (,). It is possible to recognize whether or not.・Concerning the above, in the event of an emergency such as a fire outbreak, this information is given to CTES through the route omitted in Fig. 2, and in response, CTES issues high-speed commands to each SR2□ and ~2n1. As it is being released, the sending cycle is shortened,
This state is determined by each ID7. - Predetermined time T to notify the 7m side. The constant period T□ in Fig. 1 (-) is shortened to T2, and
Predetermined time T. The transmission is repeated twice each time, for example, with a space time T8.

Therefore, each ID7. ~Response transmission from 7m (C)~
(e) also has a shortened cycle, and each IO7□~7
The existence of m can be recognized at high speed.

In this example, each delay time t~tm is set to be shorter than the period T2, so that it does not cause any trouble in the recognition of each IO7□~7m, and the receiving unit power supply (b) of ID7 is turned on. The period and period are automatically changed according to the two transmissions via space time T8, ensuring that the transmission of period T2 is received.

In addition, in normal times, it is sufficient to turn on the power supply (b) and send responses (C) to (e) according to the cycle T□, which reduces battery consumption on the IDT side and changes these cycles as necessary. This makes it possible to make rational use of battery capacity.

Figure 3 shows the appearance of SR2 (Shu is a plan view, (B)
1 is a side view, and has the form of a functional telephone, and is equipped with a node set 11, a dial key 12, and a group of function keys 13 for various memory dials, etc., as well as a display 14 such as a liquid crystal display, and .

It is equipped with a group of keys 15 for transmitting and receiving data with the CTl1E5, and a display 14 is used to display telephone displays and displays based on data transmission and reception.
An antenna 16 for transmitting and receiving electromagnetic waves is provided.

In addition, the SR2 can be used as a function phone, and
It has a built-in electromagnetic wave transmitting section, a receiving section, a related control section, etc., and transmits and receives data to and from the CTES using a specific audio frequency signal outside the communication band.

FIG. 4 is a block diagram of SR2, 6D, control section (hereinafter referred to as
CNT) 21, transmitter (hereinafter referred to as TX) 22□, 222
, receiving section (hereinafter referred to as RX) 231, 231+, and telephone circuit (hereinafter referred to as position) 24, CNT 21
is a processor such as a microprocessor (hereinafter referred to as CPU)
) 211, fixed memory (hereinafter referred to as ROM) 2
12. Variable memory (hereinafter referred to as RAM) 213. Interface (hereinafter referred to as I/F) 214 to 217 are arranged around the periphery, and these are connected by a bus bar. Control signals from I/F 214 to TX22□ and 222 and a selector (hereinafter referred to as 5EL) 25, and some I/Fs 217 accept reception outputs from RXs 231 and 232 and send out control signals to them.
includes a modulator/demodulator (hereinafter referred to as MDM) 26 and a high-frequency wave generator (
Telephone line 2 from PBX4 via HPF)27
8 is connected to the I/F 216, a key group (hereinafter referred to as KG) 13 and a display unit (hereinafter referred to as 0P) 14 are connected, and a display signal from 24 is also given to the DP 14. It becomes.

In addition, the position 24 is a low-frequency offshore wave device (hereinafter referred to as
LPF) 29, connected to the telephone line 28,
Regardless of data transmission and reception by the MDM 26 via the HPF 27, the TIEL 2B can freely make and receive calls.

TX22□, 222 are frequency synthesizer (hereinafter referred to as FSY) 221□, 2213, modulator (hereinafter referred to as MO
D) 222□.

2222, and a power amplification stage (hereinafter referred to as PA) 2231 and 2232 having a predetermined bandwidth, CN
FSY221□, 221Pl according to the control of T21
As each generation frequency is determined, MOD2221.22
2. Intermittent modulation is performed in l, and PA233□, 23
After being amplified by 32, the SEL is sent out as a transmission output to 5EL25, and is also subjected to the control of CNT21.
25, one of the transmission outputs is selected,
Alternatively, after the two river forces are mixed, it is transmitted as electromagnetic waves from the antenna 16 via the antenna multiplexer (hereinafter referred to as MPX) 30.

On the other hand, the RX23l, 232 has band pass filters (hereinafter referred to as BPFs) 231□, 2313. High frequency amplification stage (hereinafter referred to as HFA) 2320, 232□, mixer (hereinafter referred to as MIX) 233□.

233□, FSY2341.2342 for local oscillation, intermediate frequency amplification stage (hereinafter referred to as IFA) 235□, 235□,
Level selection circuit (hereinafter referred to as LSE) that blocks noise components by passing only signals above a specified level 2361, 23
62, Demodulator (hereinafter referred to as OEM) 2371, 2372
, a waveform shaper (hereinafter referred to as
WF) 238□, 2382, automatic gain control circuit (hereinafter referred to as AGC) 2391, 2392 Nyo9 each are configured υ, FSY 234□ corresponding to the control of CNT21
The reception frequency is determined by the generation frequency of , 234□, C
According to the control of NT21, TX221 + 222 is turned off during transmission υ, and during reception input from MPX30 via gate circuit (hereinafter referred to as GT) 31 which is turned on at other times, BPF231□, 2312 Extract only the desired frequency components, HFA232 +, , 2
32□, converted to intermediate frequency by MIX 2331.2332, and then IFA 235□, 2
LSE 2 further amplified by 35□ and using a comparator etc.
36□, 2362 extract the signal component above the specified level, detect it at 0gM23γ1, 23γ2, WF23B□, 238□ perform continuous time check and waveform shaping, and then give it to CNT21 as a reception output. It becomes.

Note that the CNT 21 sends out a reset signal in response to confirmation of the received output, and resets the integration circuits in the WFs 23B, 2382.

In contrast to the above, the CPU 211 in the CNT 21 is RO
Execute the instruction in M212 and save the necessary data to RAM
Perform control operations while accessing 213.
In response to a command from the CTg5 via the DM 26 and I/F 215, the TX 22□ and 222 are placed in a transmitting state, and the transmission shown in FIG. 1(a) is repeated, and the corresponding IQγ□
The response transmission from ~7m is received by the RX23□, 232, and each delay time t□~tm is detected by a timer configured in the CPU 211 according to each reception output via the I/F 217, and the recognized result is detected by the timer configured in the CPU 211. The data is temporarily stored in the RAM 213 and then transmitted as recognition data to the CTg 5 via the I/F 215 and MDM 26.

However, if there are many IO7□~7m, a single frequency f
. There is a limit to the number of allocations for the delay time t~tm.
For example, it is necessary to use different frequencies of f + f2 at the same time, and for this purpose, TX22□, 2
Two systems each of 2□ and RX231+232 are provided.

In addition, the CPU 211 responds to the operation of the KG 13, sets each transmission and reception frequency, controls and sets and updates the recognition user data, and also updates these situations to the DP 1.
4.

Figure 5 shows the shape of the transmitter/receiver possessed by ID7.
A) is a front view, and (I3) is a cutaway side view of the main parts, showing the disc-shaped case 31, the ring 32 that is screwed onto the front surface of the case, and the space between the inner surface of the periphery and the case 31. Transparent cover 33, card 34, and case 31 held between
It consists of a back plate 35 that is screwed into the back of the back plate 3.
A clip 36 is fixed to the back side of the card 34, which makes it easy to attach it to a pocket, etc. The card 34 is made into a badge shape as a whole, and you can freely write your affiliation, name, etc. on the card 34. There is.

Also, inside the case 31, an integrated circuit 38 mounted on a printed circuit board 37 and a button-shaped adhesive battery 3 are provided.
9, etc., and an antenna 4o is buried in a ring-shaped groove provided on the outside of the periphery of the case 31.
1, the head of a power switch PS using a lock-type pushbutton switch is exposed.

FIG. 6 is a block diagram of the transceiver shown in FIG.
, RX41, TX42 and CNT43 are the main components.9, RX41 and TX42 are RX22 in Fig. 4.
And similar to TX21, RX41 is BPF41
1°F (FA412.MIX413.FSY414.
IFA415. LSE416. DEM417, Vl/F
418. To AGC419! , 9 configurations i, TX42id
, FSY421, MOD422. It is composed of PA423, and CNT43 is also composed of C in Fig. 4.
Like NT21, CPU431, ROM432
, RAM 433, and I/Fs 434 to 437, and accepts reception output from RX 41 and controls RX 41 via I/F 435, and controls TX 42 via I/F 436.

Additionally, the I/F 434 is equipped with a setting device (hereinafter referred to as
SET) 438 is connected, and I/F4
In 37, from battery 39 RX41 and TX42
Each control input of a switch circuit (hereinafter referred to as 5W) 44.45 including a switching element that supplies power to each unit is connected, and when the power switch PS is turned on, the C
When NT43 starts operating, the transmission period T1 of SR2
Turn on SW44 for a long period of time, and switch on/off control in FIG. 1(b) as the transmission of SR2 is received.
44, the SW 45 is controlled to be turned on only for a period slightly longer than the period during which the response is transmitted by the TX 42.

Note that the CPU 431 executes instructions in the ROM 432,
Similar to the SR2, control operations are performed while accessing the necessary data to the RAM 433, and the CPU 431
The delay time t0 to tm is regulated by a timer configured inside.

Therefore, the transmission of SR2 is performed using antenna 40, MPX4
6 received by RX41 via WF418 of this
After the received output is given, a timer by the CPU 431 is started in response to the disappearance of the output, and according to the time-up of this timer, the period t shown in FIG. 1 is started. The response transmission is performed by TX42.

In addition, the CPU 431 controls S for a predetermined period of time.
If the transmission from R2 cannot be received, 5W44 will be left off and the power supply to RX41 and TX42 will be cut off until the power switch PS is operated again9.These controls will drain the battery. It prevents unnecessary consumption of 39.

As described above, each monitoring area 81. ~8n, every 107
The existence of □~7m can be recognized by regular T-operation, and if this information is given to PBX4, calls can be reliably transferred to a specific IO, and e-mails can also be transferred in the same way. Since it becomes easy to set air conditioning conditions, control lighting flashing, etc. by understanding the negative number of people in the room from 1□ to 1n, it is possible to provide convenience to people using offices and the like, and also to save energy.

In addition, in factories and the like, management of transportation vehicles, etc. becomes easier and more accurate, and work efficiency improves.

In addition, in an emergency situation such as a fire outbreak, the fixed period T
The time required for evacuation is shortened to T2, the location of each ID 7 can be determined at high speed, and evacuation guidance for each ID that moves at high speed and disaster response become accurate and reliable.

In Figure 2, each SR2□□~2nl and c
'rgs may be connected via a dedicated transmission line, and each SR
The same effect can be achieved by fixing 2□, to 2n to a ceiling, wall surface, etc., or burying them. The shape shown in FIG. 3 may be selected accordingly.

In addition, in FIGS. 4 and 6, FSY221□.

Frequency modulation is performed under the control of 2212.421, amplitude modulation is performed under the control of MOD222□, 2222.422, or both may be used in combination.
The configuration of each RX23□, 232.41 may be selected accordingly, and a single frequency crystal oscillator may be used in place of each FSY depending on the conditions.

In addition, the configuration in FIG. 4 includes TX22□, 222 and RX
23□, 232 may be made larger, or each year may be made smaller, and the CNT 43 in FIG. 6 may optionally use a combination of a counter and various logic circuits without particularly using the CPU 431.

In addition, the shape shown in Figure 5 may be determined depending on the application.
For personal use, it may be used as a rectangular badge or card, and for vehicles, it may be used as a magnetic plate.

On the other hand, in Figure 1, T,! Not only that, but also multiple stages,
The same effect can be achieved even if a code or the like indicating the shortening period is also transmitted in accordance with this, and the CTE 5 may judge the movement speed of each ID 7 and shorten the period T according to this.
In FIG. 1, equivalent results can be obtained by setting the delay time t□~tm based on the transmission start time from each 5R20, ~2n, while using a digital type as PRX4 in Figure 2, The configuration and shape of each figure can be modified in various ways, such as by selecting the format of the data signal and the multiplexing method accordingly.

〔Effect of the invention〕

As is clear from the above explanation, according to the present invention, the transmission cycle from each SR is shortened in accordance with the increase in the movement speed of each strand, and each ID can be recognized at high speed. A remarkable effect can be obtained in the recognition of

[Brief explanation of drawings]

The figures show an embodiment of the present invention, Fig. 1 is a timing chart showing the status of transmission and response transmission, Fig. 2 is a block diagram of the entire configuration, Fig. 3 shows the appearance of the SR, and (4) is a plan view. (B) is a side view, Fig. 4 is a block diagram of SR, Fig. 5
The figure shows a transceiver for use, (4) is a front view, (B)
6 is a cutaway side view of essential parts, and FIG. 6 is a block diagram of the transceiver shown in FIG. 5. 20, ~2nt...-8R (transmission/reception terminal), 5...
...CTE (solid device), 6...MMI (operating device), γ, ~7m...ID (individual), 8□1-8
nE...Monitoring area, 16.40...Antenna, 21.43...CNT (control unit), 22□,
22. ! , 41...TX (transmission section), 23□. 232, 42...RX (receiving section), 30, 46...
...MPX (multiplexer), 31...GT
(gate circuit), 39...Battery, 44°45...
...SW (switch circuit), To...predetermined time, T-work ST2...fixed period, t1~tm...
...Delay time. Patent Applicant Yamatake Honeywell Co., Ltd. Agent Kazuyoshi Yamakawa (2 persons) (A) Figure 3 (B) G Figure 5 (B) Procedural Amendment Document 1. Display of the case 1932 Patent Application No. 48538 2, Name of the invention Individual G Weaving method 3, Person making the amendment Relationship to the case Patent Applicant name (name)
) (666) Yamatake Newell Co., Ltd. 5, Subject of amendment (1) "To" in lines 14 and 16 on page 7 of the specification is changed to r
Correct as III/, (T'o < To) J. (2) "28" on page 10, line 11 of the same book is corrected to "24". (3) Same book, same page, line 19 r23L, 233t J to r
Corrected as 223r and 223t J. (4) “22 and TX” on page 14, lines 16 and 17 of the same book.
Correct 21 J with [23 and TX22J. (5) Correct "41" in line 7 of page 2'0 of the same book to "42". (6) Correct "42" in line 8 of the same page of the same book to "41". (Add r, T5J next to rToj on line 11 of the same page of the same book. (8) Revise Figure 1 as shown in the attached sheet.

Claims (1)

[Claims] Electromagnetic waves of a specific frequency are repeatedly transmitted to a monitoring area of a specific range for a predetermined period of time, and when each of the plurality of individuals receives the electromagnetic waves with their respective receivers, After the delay time elapses, each individual transmits an electromagnetic wave of the same frequency as a response to each individual using a transmitter provided in each individual, and upon reception of the response transmission, each individual detects the delay time, and according to the detection result, the monitoring is performed. A method for recognizing the presence of each individual in an area, characterized in that the fixed period is shortened in accordance with an increase in the moving speed of each individual.